From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 5/6] cfi_flash: remove old driver and switch to new one
Date: Mon, 8 Feb 2010 14:47:31 +0100 [thread overview]
Message-ID: <1265636852-19054-6-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1265636852-19054-5-git-send-email-s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/nor/Kconfig | 34 +-
drivers/nor/Makefile | 3 +-
drivers/nor/cfi_flash.c | 1523 ++++++++++++++---------------------------
drivers/nor/cfi_flash_amd.c | 2 +-
drivers/nor/cfi_flash_intel.c | 2 +-
drivers/nor/cfi_flash_new.c | 997 ---------------------------
include/cfi_flash.h | 204 ++++++-
include/cfi_flash_new.h | 660 ------------------
8 files changed, 718 insertions(+), 2707 deletions(-)
delete mode 100644 drivers/nor/cfi_flash_new.c
delete mode 100644 include/cfi_flash_new.h
diff --git a/drivers/nor/Kconfig b/drivers/nor/Kconfig
index 7d9497e..43a6b84 100644
--- a/drivers/nor/Kconfig
+++ b/drivers/nor/Kconfig
@@ -9,35 +9,19 @@ config DRIVER_CFI
If you have NOR Flash devices connected to your system and wish
to use them say yes here.
-config DRIVER_CFI_NEW
- depends on DRIVER_CFI
- default y
- bool "new cfi flash driver"
- help
- The old cfi flash driver is mainly an adopted version from U-Boot v1
- whereas the new driver contains some more experimental features such
- as selecting the supported chiptypes and bus widths making the driver
- smaller.
- Normally you should stick with the new driver, but if you experience
- troubles you could try the old driver. Please report if the new driver
- breaks something.
-
-config DRIVER_CFI_OLD
- bool "old cfi flash driver"
- default y
- depends on !DRIVER_CFI_NEW
-
config DRIVER_CFI_INTEL
- depends on DRIVER_CFI_NEW
+ default y
+ depends on DRIVER_CFI
bool "Support Intel flash chips"
config DRIVER_CFI_AMD
- depends on DRIVER_CFI_NEW
+ default y
+ depends on DRIVER_CFI
bool "support AMD flash chips"
config DRIVER_CFI_BANK_WIDTH_1
bool "Support 8-bit buswidth"
- depends on DRIVER_CFI_NEW
+ depends on DRIVER_CFI
default y
help
If you wish to support CFI devices on a physical bus which is
@@ -45,7 +29,7 @@ config DRIVER_CFI_BANK_WIDTH_1
config DRIVER_CFI_BANK_WIDTH_2
bool "Support 16-bit buswidth"
- depends on DRIVER_CFI_NEW
+ depends on DRIVER_CFI
default y
help
If you wish to support CFI devices on a physical bus which is
@@ -53,7 +37,7 @@ config DRIVER_CFI_BANK_WIDTH_2
config DRIVER_CFI_BANK_WIDTH_4
bool "Support 32-bit buswidth"
- depends on DRIVER_CFI_NEW
+ depends on DRIVER_CFI
default y
help
If you wish to support CFI devices on a physical bus which is
@@ -61,7 +45,7 @@ config DRIVER_CFI_BANK_WIDTH_4
config DRIVER_CFI_BANK_WIDTH_8
bool "Support 64-bit buswidth"
- depends on DRIVER_CFI_NEW
+ depends on DRIVER_CFI
default n
help
If you wish to support CFI devices on a physical bus which is
@@ -69,6 +53,6 @@ config DRIVER_CFI_BANK_WIDTH_8
config CFI_BUFFER_WRITE
bool "use cfi driver with buffer write"
- depends on DRIVER_CFI || DRIVER_CFI_NEW
+ depends on DRIVER_CFI || DRIVER_CFI
endmenu
diff --git a/drivers/nor/Makefile b/drivers/nor/Makefile
index d5b5709..d255043 100644
--- a/drivers/nor/Makefile
+++ b/drivers/nor/Makefile
@@ -1,5 +1,4 @@
-obj-$(CONFIG_DRIVER_CFI_OLD) += cfi_flash.o
-obj-$(CONFIG_DRIVER_CFI_NEW) += cfi_flash_new.o
+obj-$(CONFIG_DRIVER_CFI) += cfi_flash.o
obj-$(CONFIG_DRIVER_CFI_INTEL) += cfi_flash_intel.o
obj-$(CONFIG_DRIVER_CFI_AMD) += cfi_flash_amd.o
diff --git a/drivers/nor/cfi_flash.c b/drivers/nor/cfi_flash.c
index 1d8ed2d..c8e07c4 100644
--- a/drivers/nor/cfi_flash.c
+++ b/drivers/nor/cfi_flash.c
@@ -31,9 +31,8 @@
*
*/
-#ifdef CONFIG_ENABLE_FLASH_NOISE
-# define DEBUG
-#endif
+/* The DEBUG define must be before common to enable debugging */
+/* #define DEBUG */
#include <common.h>
#include <asm/byteorder.h>
@@ -42,100 +41,24 @@
#include <init.h>
#include <malloc.h>
#include <cfi_flash.h>
+#include <asm/io.h>
#include <errno.h>
-#define FLASH_CMD_CFI 0x98
-#define FLASH_CMD_READ_ID 0x90
-#define FLASH_CMD_RESET 0xff
-#define FLASH_CMD_BLOCK_ERASE 0x20
-#define FLASH_CMD_ERASE_CONFIRM 0xD0
-#define FLASH_CMD_WRITE 0x40
-#define FLASH_CMD_PROTECT 0x60
-#define FLASH_CMD_PROTECT_SET 0x01
-#define FLASH_CMD_PROTECT_CLEAR 0xD0
-#define FLASH_CMD_CLEAR_STATUS 0x50
-#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
-#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
-
-#define FLASH_STATUS_DONE 0x80
-#define FLASH_STATUS_ESS 0x40
-#define FLASH_STATUS_ECLBS 0x20
-#define FLASH_STATUS_PSLBS 0x10
-#define FLASH_STATUS_VPENS 0x08
-#define FLASH_STATUS_PSS 0x04
-#define FLASH_STATUS_DPS 0x02
-#define FLASH_STATUS_R 0x01
-#define FLASH_STATUS_PROTECT 0x01
-
-#define AMD_CMD_RESET 0xF0
-#define AMD_CMD_WRITE 0xA0
-#define AMD_CMD_ERASE_START 0x80
-#define AMD_CMD_ERASE_SECTOR 0x30
-#define AMD_CMD_UNLOCK_START 0xAA
-#define AMD_CMD_UNLOCK_ACK 0x55
-#define AMD_CMD_WRITE_TO_BUFFER 0x25
-#define AMD_CMD_WRITE_BUFFER_CONFIRM 0x29
-
-#define AMD_STATUS_TOGGLE 0x40
-#define AMD_STATUS_ERROR 0x20
-
-#define AMD_ADDR_ERASE_START ((info->portwidth == FLASH_CFI_8BIT) ? 0xAAA : 0x555)
-#define AMD_ADDR_START ((info->portwidth == FLASH_CFI_8BIT) ? 0xAAA : 0x555)
-#define AMD_ADDR_ACK ((info->portwidth == FLASH_CFI_8BIT) ? 0x555 : 0x2AA)
-
-#define FLASH_OFFSET_MANUFACTURER_ID 0x00
-#define FLASH_OFFSET_DEVICE_ID 0x01
-#define FLASH_OFFSET_DEVICE_ID2 0x0E
-#define FLASH_OFFSET_DEVICE_ID3 0x0F
-#define FLASH_OFFSET_CFI 0x55
-#define FLASH_OFFSET_CFI_ALT 0x555
-#define FLASH_OFFSET_CFI_RESP 0x10
-#define FLASH_OFFSET_PRIMARY_VENDOR 0x13
-#define FLASH_OFFSET_EXT_QUERY_T_P_ADDR 0x15 /* extended query table primary addr */
-#define FLASH_OFFSET_WTOUT 0x1F
-#define FLASH_OFFSET_WBTOUT 0x20
-#define FLASH_OFFSET_ETOUT 0x21
-#define FLASH_OFFSET_CETOUT 0x22
-#define FLASH_OFFSET_WMAX_TOUT 0x23
-#define FLASH_OFFSET_WBMAX_TOUT 0x24
-#define FLASH_OFFSET_EMAX_TOUT 0x25
-#define FLASH_OFFSET_CEMAX_TOUT 0x26
-#define FLASH_OFFSET_SIZE 0x27
-#define FLASH_OFFSET_INTERFACE 0x28
-#define FLASH_OFFSET_BUFFER_SIZE 0x2A
-#define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C
-#define FLASH_OFFSET_ERASE_REGIONS 0x2D
-#define FLASH_OFFSET_PROTECT 0x02
-#define FLASH_OFFSET_USER_PROTECTION 0x85
-#define FLASH_OFFSET_INTEL_PROTECTION 0x81
-
-#define CFI_CMDSET_NONE 0
-#define CFI_CMDSET_INTEL_EXTENDED 1
-#define CFI_CMDSET_AMD_STANDARD 2
-#define CFI_CMDSET_INTEL_STANDARD 3
-#define CFI_CMDSET_AMD_EXTENDED 4
-#define CFI_CMDSET_MITSU_STANDARD 256
-#define CFI_CMDSET_MITSU_EXTENDED 257
-#define CFI_CMDSET_SST 258
-
-#ifdef CFG_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */
-# undef FLASH_CMD_RESET
-# define FLASH_CMD_RESET AMD_CMD_RESET /* use AMD-Reset instead */
-#endif
-
-typedef union {
- unsigned char c;
- unsigned short w;
- unsigned long l;
- unsigned long long ll;
-} cfiword_t;
-
-typedef union {
- volatile unsigned char *cp;
- volatile unsigned short *wp;
- volatile unsigned long *lp;
- volatile unsigned long long *llp;
-} cfiptr_t;
+/*
+ * This file implements a Common Flash Interface (CFI) driver for barebox.
+ * The width of the port and the width of the chips are determined at initialization.
+ * These widths are used to calculate the address for access CFI data structures.
+ *
+ * References
+ * JEDEC Standard JESD68 - Common Flash Interface (CFI)
+ * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
+ * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
+ * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
+ * AMD CFI Specification, Release 2.0 December 1, 2001
+ * AMD/Spansion Application Note: Migration from Single-byte to Three-byte
+ * Device IDs, Publication Number 25538 Revision A, November 8, 2001
+ *
+ */
#define NUM_ERASE_REGIONS 4 /* max. number of erase regions */
@@ -149,45 +72,100 @@ static uint flash_offset_cfi[2]={FLASH_OFFSET_CFI,FLASH_OFFSET_CFI_ALT};
#endif
-/*-----------------------------------------------------------------------
+/*
* Functions
*/
-typedef unsigned long flash_sect_t;
-
-static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c);
-static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf);
-static void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect);
-static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-static int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-static int flash_toggle (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-static void flash_read_jedec_ids (flash_info_t * info);
-static int flash_detect_cfi (flash_info_t * info);
-static int flash_write_cfiword (flash_info_t * info, ulong dest, cfiword_t cword);
-static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
- uint64_t tout, char *prompt);
-static ulong flash_get_size (flash_info_t *info, ulong base);
-#ifdef CONFIG_CFI_BUFFER_WRITE
-static int flash_write_cfibuffer (flash_info_t * info, ulong dest, const uchar * cp, int len);
+static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
+{
+#if defined(__LITTLE_ENDIAN)
+ unsigned short w;
+ unsigned int l;
+ unsigned long long ll;
#endif
-static int write_buff (flash_info_t *info, const uchar *src, ulong addr, ulong cnt);
-static int flash_real_protect(flash_info_t *info, long sector, int prot);
+ if (bankwidth_is_1(info)) {
+ cword->c = c;
+ } else if (bankwidth_is_2(info)) {
+#if defined(__LITTLE_ENDIAN)
+ w = c;
+ w <<= 8;
+ cword->w = (cword->w >> 8) | w;
+#else
+ cword->w = (cword->w << 8) | c;
+#endif
+ } else if (bankwidth_is_4(info)) {
+#if defined(__LITTLE_ENDIAN)
+ l = c;
+ l <<= 24;
+ cword->l = (cword->l >> 8) | l;
+#else
+ cword->l = (cword->l << 8) | c;
+#endif
+ } else if (bankwidth_is_8(info)) {
+#if defined(__LITTLE_ENDIAN)
+ ll = c;
+ ll <<= 56;
+ cword->ll = (cword->ll >> 8) | ll;
+#else
+ cword->ll = (cword->ll << 8) | c;
+#endif
+ }
+}
-/*-----------------------------------------------------------------------
- * create an address based on the offset and the port width
- */
-static inline uchar *flash_make_addr (flash_info_t * info, flash_sect_t sect, uint offset)
+static int flash_write_cfiword (flash_info_t * info, ulong dest,
+ cfiword_t cword)
{
- return ((uchar *) (info->start[sect] + (offset * info->portwidth)));
+ cfiptr_t ctladdr;
+ cfiptr_t cptr;
+ int flag;
+
+ ctladdr.cp = flash_make_addr (info, 0, 0);
+ cptr.cp = (uchar *) dest;
+
+ /* Check if Flash is (sufficiently) erased */
+ if (bankwidth_is_1(info)) {
+ flag = ((cptr.cp[0] & cword.c) == cword.c);
+ } else if (bankwidth_is_2(info)) {
+ flag = ((cptr.wp[0] & cword.w) == cword.w);
+ } else if (bankwidth_is_4(info)) {
+ flag = ((cptr.lp[0] & cword.l) == cword.l);
+ } else if (bankwidth_is_8(info)) {
+ flag = ((cptr.llp[0] & cword.ll) == cword.ll);
+ } else
+ return 2;
+
+ if (!flag)
+ return 2;
+
+ /* Disable interrupts which might cause a timeout here */
+// flag = disable_interrupts ();
+
+ info->cfi_cmd_set->flash_prepare_write(info);
+
+ if (bankwidth_is_1(info)) {
+ cptr.cp[0] = cword.c;
+ } else if (bankwidth_is_2(info)) {
+ cptr.wp[0] = cword.w;
+ } else if (bankwidth_is_4(info)) {
+ cptr.lp[0] = cword.l;
+ } else if (bankwidth_is_8(info)) {
+ cptr.llp[0] = cword.ll;
+ }
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts ();
+
+ return flash_status_check (info, find_sector (info, dest),
+ info->write_tout, "write");
}
#ifdef DEBUG
-/*-----------------------------------------------------------------------
+/*
* Debug support
*/
-static void print_longlong (char *str, unsigned long long data)
+void print_longlong (char *str, unsigned long long data)
{
int i;
char *cp;
@@ -196,6 +174,7 @@ static void print_longlong (char *str, unsigned long long data)
for (i = 0; i < 8; i++)
sprintf (&str[i * 2], "%2.2x", *cp++);
}
+
static void flash_printqry (flash_info_t * info, flash_sect_t sect)
{
cfiptr_t cptr;
@@ -222,23 +201,7 @@ static void flash_printqry (flash_info_t * info, flash_sect_t sect)
}
#endif
-
-/*-----------------------------------------------------------------------
- * read a character at a port width address
- */
-static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
-{
- uchar *cp;
-
- cp = flash_make_addr (info, 0, offset);
-#if defined(__LITTLE_ENDIAN)
- return (cp[0]);
-#else
- return (cp[info->portwidth - 1]);
-#endif
-}
-
-/*-----------------------------------------------------------------------
+/*
* read a short word by swapping for ppc format.
*/
static ushort flash_read_ushort (flash_info_t * info, flash_sect_t sect, uint offset)
@@ -269,7 +232,7 @@ static ushort flash_read_ushort (flash_info_t * info, flash_sect_t sect, uint of
return retval;
}
-/*-----------------------------------------------------------------------
+/*
* read a long word by picking the least significant byte of each maximum
* port size word. Swap for ppc format.
*/
@@ -302,203 +265,269 @@ static ulong flash_read_long (flash_info_t * info, flash_sect_t sect, uint offse
return retval;
}
-static int flash_find_sector(flash_info_t * info, unsigned long adr)
+/*
+ * detect if flash is compatible with the Common Flash Interface (CFI)
+ * http://www.jedec.org/download/search/jesd68.pdf
+ *
+*/
+static int flash_detect_cfi (flash_info_t * info)
{
- int i;
- unsigned long end;
+ int cfi_offset;
+ debug ("flash detect cfi\n");
- for (i = 0; i < info->sector_count; i++) {
- if (i + 1 == info->sector_count)
- end = info->start[0] + info->size - 1;
- else
- end = info->start[i + 1] - 1;
- if (adr >= info->start[i] && adr <= end)
- return i;
+ for (info->portwidth = CFG_FLASH_CFI_WIDTH;
+ info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) {
+ for (info->chipwidth = FLASH_CFI_BY8;
+ info->chipwidth <= info->portwidth;
+ info->chipwidth <<= 1) {
+ flash_write_cmd (info, 0, 0, info->cmd_reset);
+ for (cfi_offset=0; cfi_offset < sizeof(flash_offset_cfi)/sizeof(uint); cfi_offset++) {
+ flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset], FLASH_CMD_CFI);
+ if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
+ && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
+ && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
+ info->interface = flash_read_ushort (info, 0, FLASH_OFFSET_INTERFACE);
+ info->cfi_offset=flash_offset_cfi[cfi_offset];
+ debug ("device interface is %d\n",
+ info->interface);
+ debug ("found port %d chip %d ",
+ info->portwidth, info->chipwidth);
+ debug ("port %d bits chip %d bits\n",
+ info->portwidth << CFI_FLASH_SHIFT_WIDTH,
+ info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ return 1;
+ }
+ }
+ }
}
- return -1;
+ debug ("not found\n");
+ return 0;
}
-/*-----------------------------------------------------------------------
+/*
+ * The following code cannot be run from FLASH!
*/
-static int flash_erase_one (flash_info_t * info, long sect)
+static ulong flash_get_size (flash_info_t *info, ulong base)
{
- int rcode = 0;
+ int i, j;
+ flash_sect_t sect_cnt;
+ unsigned long sector;
+ unsigned long tmp;
+ int size_ratio;
+ uchar num_erase_regions;
+ int erase_region_size;
+ int erase_region_count;
+ int geometry_reversed = 0;
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- flash_write_cmd (info, sect, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, sect, 0, FLASH_CMD_BLOCK_ERASE);
- flash_write_cmd (info, sect, 0, FLASH_CMD_ERASE_CONFIRM);
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- flash_unlock_seq (info, sect);
- flash_write_cmd (info, sect, AMD_ADDR_ERASE_START,
- AMD_CMD_ERASE_START);
- flash_unlock_seq (info, sect);
- flash_write_cmd (info, sect, 0, AMD_CMD_ERASE_SECTOR);
- break;
- default:
- debug ("Unkown flash vendor %d\n",
- info->vendor);
- break;
- }
- if (flash_full_status_check
- (info, sect, info->erase_blk_tout, "erase")) {
- rcode = 1;
- } else
- putchar('.');
+ info->ext_addr = 0;
+ info->cfi_version = 0;
+#ifdef CFG_FLASH_PROTECTION
+ info->legacy_unlock = 0;
+#endif
- return rcode;
-}
+ /* first only malloc space for the first sector */
+ info->start = malloc(sizeof(ulong));
-static int cfi_erase(struct cdev *cdev, size_t count, unsigned long offset)
-{
- flash_info_t *finfo = (flash_info_t *)cdev->priv;
- unsigned long start, end;
- int i, ret = 0;
+ info->start[0] = base;
+ info->protect = 0;
- debug("%s: erase 0x%08x (size %d)\n", __FUNCTION__, offset, count);
+ if (flash_detect_cfi (info)) {
+ info->vendor = flash_read_ushort (info, 0,
+ FLASH_OFFSET_PRIMARY_VENDOR);
+ switch (info->vendor) {
+#ifdef CONFIG_DRIVER_CFI_INTEL
+ case CFI_CMDSET_INTEL_EXTENDED:
+ case CFI_CMDSET_INTEL_STANDARD:
+ info->cfi_cmd_set = &cfi_cmd_set_intel;
+ break;
+#endif
+#ifdef CONFIG_DRIVER_CFI_AMD
+ case CFI_CMDSET_AMD_STANDARD:
+ case CFI_CMDSET_AMD_EXTENDED:
+ info->cfi_cmd_set = &cfi_cmd_set_amd;
+ break;
+#endif
+ default:
+ printf("unsupported vendor\n");
+ return 0;
+ }
+ info->cfi_cmd_set->flash_read_jedec_ids (info);
+ flash_write_cmd (info, 0, info->cfi_offset, FLASH_CMD_CFI);
+ num_erase_regions = flash_read_uchar (info,
+ FLASH_OFFSET_NUM_ERASE_REGIONS);
+ info->ext_addr = flash_read_ushort (info, 0,
+ FLASH_OFFSET_EXT_QUERY_T_P_ADDR);
+ if (info->ext_addr) {
+ info->cfi_version = (ushort) flash_read_uchar (info,
+ info->ext_addr + 3) << 8;
+ info->cfi_version |= (ushort) flash_read_uchar (info,
+ info->ext_addr + 4);
+ }
+#ifdef DEBUG
+ flash_printqry (info, 0);
+#endif
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_STANDARD:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ default:
+ info->cmd_reset = FLASH_CMD_RESET;
+#ifdef CFG_FLASH_PROTECTION
+ /* read legacy lock/unlock bit from intel flash */
+ if (info->ext_addr) {
+ info->legacy_unlock = flash_read_uchar (info,
+ info->ext_addr + 5) & 0x08;
+ }
+#endif
+ break;
+ case CFI_CMDSET_AMD_STANDARD:
+ case CFI_CMDSET_AMD_EXTENDED:
+ info->cmd_reset = AMD_CMD_RESET;
+ /* check if flash geometry needs reversal */
+ if (num_erase_regions <= 1)
+ break;
+ /* reverse geometry if top boot part */
+ if (info->cfi_version < 0x3131) {
+ /* CFI < 1.1, try to guess from device id */
+ if ((info->device_id & 0x80) != 0) {
+ geometry_reversed = 1;
+ }
+ break;
+ }
+ /* CFI >= 1.1, deduct from top/bottom flag */
+ /* note: ext_addr is valid since cfi_version > 0 */
+ if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
+ geometry_reversed = 1;
+ }
+ break;
+ }
- start = flash_find_sector(finfo, cdev->dev->map_base + offset);
- end = flash_find_sector(finfo, cdev->dev->map_base + offset + count - 1);
+ debug ("manufacturer is %d\n", info->vendor);
+ debug ("manufacturer id is 0x%x\n", info->manufacturer_id);
+ debug ("device id is 0x%x\n", info->device_id);
+ debug ("device id2 is 0x%x\n", info->device_id2);
+ debug ("cfi version is 0x%04x\n", info->cfi_version);
- for (i = start; i <= end; i++) {
- ret = flash_erase_one (finfo, i);
- if (ret)
- goto out;
- }
-out:
- putchar('\n');
- return ret;
-}
+ size_ratio = info->portwidth / info->chipwidth;
+ /* if the chip is x8/x16 reduce the ratio by half */
+ if ((info->interface == FLASH_CFI_X8X16)
+ && (info->chipwidth == FLASH_CFI_BY8)) {
+ size_ratio >>= 1;
+ }
+ debug ("size_ratio %d port %d bits chip %d bits\n",
+ size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
+ info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ debug ("found %d erase regions\n", num_erase_regions);
+ sect_cnt = 0;
+ sector = base;
-static int cfi_protect(struct cdev *cdev, size_t count, unsigned long offset, int prot)
-{
- flash_info_t *finfo = (flash_info_t *)cdev->priv;
- unsigned long start, end;
- int i, ret = 0;
+ for (i = 0; i < num_erase_regions; i++) {
+ if (i > NUM_ERASE_REGIONS) {
+ printf ("%d erase regions found, only %d used\n",
+ num_erase_regions, NUM_ERASE_REGIONS);
+ break;
+ }
+ if (geometry_reversed)
+ tmp = flash_read_long (info, 0,
+ FLASH_OFFSET_ERASE_REGIONS +
+ (num_erase_regions - 1 - i) * 4);
+ else
+ tmp = flash_read_long (info, 0,
+ FLASH_OFFSET_ERASE_REGIONS +
+ i * 4);
+ erase_region_size =
+ (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
+ tmp >>= 16;
+ erase_region_count = (tmp & 0xffff) + 1;
+ debug ("erase_region_count = %d erase_region_size = %d\n",
+ erase_region_count, erase_region_size);
- debug("%s: %sprotect 0x%08x (size %d)\n",
- __FUNCTION__, (prot? "" : "un"), offset, count);
+ /* increase the space malloced for the sector start addresses */
+ info->start = realloc(info->start, sizeof(ulong) * (erase_region_count + sect_cnt));
+ info->protect = realloc(info->protect, sizeof(uchar) * (erase_region_count + sect_cnt));
- start = flash_find_sector(finfo, cdev->dev->map_base + offset);
- end = flash_find_sector(finfo, cdev->dev->map_base + offset + count - 1);
+ for (j = 0; j < erase_region_count; j++) {
+ info->start[sect_cnt] = sector;
+ sector += (erase_region_size * size_ratio);
- for (i = start; i <= end; i++) {
- ret = flash_real_protect (finfo, i, prot);
- if (ret)
- goto out;
- }
-out:
- putchar('\n');
- return ret;
-}
+ /*
+ * Only read protection status from supported devices (intel...)
+ */
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_EXTENDED:
+ case CFI_CMDSET_INTEL_STANDARD:
+ info->protect[sect_cnt] =
+ flash_isset (info, sect_cnt,
+ FLASH_OFFSET_PROTECT,
+ FLASH_STATUS_PROTECT);
+ break;
+ default:
+ info->protect[sect_cnt] = 0; /* default: not protected */
+ }
-static ssize_t cfi_write(struct cdev *cdev, const void* buf, size_t count, unsigned long offset, ulong flags)
-{
- flash_info_t *finfo = (flash_info_t *)cdev->priv;
- int ret;
+ sect_cnt++;
+ }
+ }
- debug("cfi_write: buf=0x%08x addr=0x%08x count=0x%08x\n",buf, cdev->dev->map_base + offset, count);
+ info->sector_count = sect_cnt;
+ /* multiply the size by the number of chips */
+ info->size = (1 << flash_read_uchar (info, FLASH_OFFSET_SIZE)) * size_ratio;
+ info->buffer_size = (1 << flash_read_ushort (info, 0, FLASH_OFFSET_BUFFER_SIZE));
+ tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_ETOUT);
+ info->erase_blk_tout = (tmp * (1 << flash_read_uchar (info, FLASH_OFFSET_EMAX_TOUT)));
+ tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WBTOUT)) *
+ (1 << flash_read_uchar (info, FLASH_OFFSET_WBMAX_TOUT));
+ info->buffer_write_tout = tmp * 1000;
+ tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WTOUT)) *
+ (1 << flash_read_uchar (info, FLASH_OFFSET_WMAX_TOUT));
+ info->write_tout = tmp * 1000;
+ info->flash_id = FLASH_MAN_CFI;
+ if ((info->interface == FLASH_CFI_X8X16) && (info->chipwidth == FLASH_CFI_BY8)) {
+ info->portwidth >>= 1; /* XXX - Need to test on x8/x16 in parallel. */
+ }
+ }
- ret = write_buff (finfo, buf, cdev->dev->map_base + offset, count);
- return ret == 0 ? count : -1;
+ flash_write_cmd (info, 0, 0, info->cmd_reset);
+ return info->size;
}
-static void cfi_info (struct device_d* dev)
+/* loop through the sectors from the highest address
+ * when the passed address is greater or equal to the sector address
+ * we have a match
+ */
+flash_sect_t find_sector (flash_info_t * info, ulong addr)
{
- flash_info_t *info = (flash_info_t *)dev->priv;
- int i;
-
- if (info->flash_id != FLASH_MAN_CFI) {
- puts ("missing or unknown FLASH type\n");
- return;
- }
-
- printf ("CFI conformant FLASH (%d x %d)"
- " Size: %ld MB in %d Sectors\n"
- " ",
- info->portwidth << 3,info->chipwidth << 3,
- info->size >> 20, info->sector_count);
+ flash_sect_t sector;
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- printf ("Intel Standard");
- break;
- case CFI_CMDSET_INTEL_EXTENDED:
- printf ("Intel Extended");
- break;
- case CFI_CMDSET_AMD_STANDARD:
- printf ("AMD Standard");
- break;
- case CFI_CMDSET_AMD_EXTENDED:
- printf ("AMD Extended");
- break;
- default:
- printf ("Unknown (%d)", info->vendor);
+ for (sector = info->sector_count - 1; sector >= 0; sector--) {
+ if (addr >= info->start[sector])
break;
}
- printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x%02X",
- info->manufacturer_id, info->device_id);
- if (info->device_id == 0x7E) {
- printf("%04X", info->device_id2);
- }
- printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
- info->erase_blk_tout,
- info->write_tout);
- if (info->buffer_size > 1) {
- printf (" Buffer write timeout: %ld ms, buffer size: %d bytes\n",
- info->buffer_write_tout,
- info->buffer_size);
- }
+ return sector;
+}
- puts ("\n Sector Start Addresses:");
- for (i = 0; i < info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n");
-#ifdef CFG_FLASH_EMPTY_INFO
- {
- int k;
- int size;
- int erased;
- volatile unsigned long *flash;
+static int cfi_erase(struct cdev *cdev, size_t count, unsigned long offset)
+{
+ flash_info_t *finfo = (flash_info_t *)cdev->priv;
+ unsigned long start, end;
+ int i, ret = 0;
- /*
- * Check if whole sector is erased
- */
- if (i != (info->sector_count - 1))
- size = info->start[i + 1] - info->start[i];
- else
- size = info->start[0] + info->size - info->start[i];
- erased = 1;
- flash = (volatile unsigned long *) info->start[i];
- size = size >> 2; /* divide by 4 for longword access */
- for (k = 0; k < size; k++) {
- if (*flash++ != 0xffffffff) {
- erased = 0;
- break;
- }
- }
+ printf("%s: erase 0x%08x (size %d)\n", __FUNCTION__, offset, count);
- /* print empty and read-only info */
- printf (" %08lX %c %s ",
- info->start[i],
- erased ? 'E' : ' ',
- info->protect[i] ? "RO" : " ");
- }
-#else /* ! CFG_FLASH_EMPTY_INFO */
- printf (" %08lX %s ",
- info->start[i],
- info->protect[i] ? "RO" : " ");
-#endif
- }
- putchar('\n');
- return;
+ start = find_sector(finfo, cdev->dev->map_base + offset);
+ end = find_sector(finfo, cdev->dev->map_base + offset + count - 1);
+
+ for (i = start; i <= end; i++) {
+ ret = finfo->cfi_cmd_set->flash_erase_one(finfo, i);
+ if (ret)
+ goto out;
+ printf(".");
+ }
+out:
+ putchar('\n');
+ return ret;
}
-/*-----------------------------------------------------------------------
+/*
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
@@ -533,7 +562,9 @@ static int write_buff (flash_info_t * info, const uchar * src, ulong addr, ulong
}
for (; (cnt == 0) && (i < info->portwidth); ++i, ++cp)
flash_add_byte (info, &cword, (*(uchar *) cp));
- if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
+
+ rc = flash_write_cfiword (info, wp, cword);
+ if (rc)
return rc;
wp = cp;
}
@@ -559,7 +590,7 @@ static int write_buff (flash_info_t * info, const uchar * src, ulong addr, ulong
i = buffered_size - (wp % buffered_size);
if (i > cnt)
i = cnt;
- if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
+ if ((rc = info->cfi_cmd_set->flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
return rc;
i -= i & (info->portwidth - 1);
wp += i;
@@ -579,7 +610,7 @@ static int write_buff (flash_info_t * info, const uchar * src, ulong addr, ulong
}
#endif /* CONFIG_CFI_BUFFER_WRITE */
if (cnt == 0) {
- return (0);
+ return 0;
}
/*
@@ -609,7 +640,7 @@ static int flash_real_protect (flash_info_t * info, long sector, int prot)
flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
if ((retcode =
- flash_full_status_check (info, sector, info->erase_blk_tout,
+ flash_status_check (info, sector, info->erase_blk_tout,
prot ? "protect" : "unprotect")) == 0) {
info->protect[sector] = prot;
@@ -630,8 +661,132 @@ static int flash_real_protect (flash_info_t * info, long sector, int prot)
return retcode;
}
+static int cfi_protect(struct cdev *cdev, size_t count, unsigned long offset, int prot)
+{
+ flash_info_t *finfo = (flash_info_t *)cdev->priv;
+ unsigned long start, end;
+ int i, ret = 0;
+ const char *action = (prot? "protect" : "unprotect");
+
+ printf("%s: %s 0x%08x (size %d)\n", __FUNCTION__,
+ action, cdev->dev->map_base + offset, count);
+
+ start = find_sector(finfo, cdev->dev->map_base + offset);
+ end = find_sector(finfo, cdev->dev->map_base + offset + count - 1);
+
+ for (i = start; i <= end; i++) {
+ ret = flash_real_protect (finfo, i, prot);
+ if (ret)
+ goto out;
+ }
+out:
+ putchar('\n');
+ return ret;
+}
+
+static ssize_t cfi_write(struct cdev *cdev, const void *buf, size_t count, unsigned long offset, ulong flags)
+{
+ flash_info_t *finfo = (flash_info_t *)cdev->priv;
+ int ret;
+
+ debug("cfi_write: buf=0x%08x addr=0x%08x count=0x%08x\n",buf, cdev->dev->map_base + offset, count);
+
+ ret = write_buff (finfo, buf, cdev->dev->map_base + offset, count);
+ return ret == 0 ? count : -1;
+}
+
+static void cfi_info (struct device_d* dev)
+{
+ flash_info_t *info = (flash_info_t *)dev->priv;
+ int i;
+
+ if (info->flash_id != FLASH_MAN_CFI) {
+ puts ("missing or unknown FLASH type\n");
+ return;
+ }
+
+ printf ("CFI conformant FLASH (%d x %d)",
+ (info->portwidth << 3), (info->chipwidth << 3));
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+ printf (" ");
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_STANDARD:
+ printf ("Intel Standard");
+ break;
+ case CFI_CMDSET_INTEL_EXTENDED:
+ printf ("Intel Extended");
+ break;
+ case CFI_CMDSET_AMD_STANDARD:
+ printf ("AMD Standard");
+ break;
+ case CFI_CMDSET_AMD_EXTENDED:
+ printf ("AMD Extended");
+ break;
+ default:
+ printf ("Unknown (%d)", info->vendor);
+ break;
+ }
+ printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x%02X",
+ info->manufacturer_id, info->device_id);
+ if (info->device_id == 0x7E) {
+ printf("%04X", info->device_id2);
+ }
+ printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
+ info->erase_blk_tout,
+ info->write_tout);
+ if (info->buffer_size > 1) {
+ printf (" Buffer write timeout: %ld ms, buffer size: %d bytes\n",
+ info->buffer_write_tout,
+ info->buffer_size);
+ }
+
+ puts ("\n Sector Start Addresses:");
+ for (i = 0; i < info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n");
+#ifdef CFG_FLASH_EMPTY_INFO
+ {
+ int k;
+ int size;
+ int erased;
+ volatile unsigned long *flash;
+
+ /*
+ * Check if whole sector is erased
+ */
+ if (i != (info->sector_count - 1))
+ size = info->start[i + 1] - info->start[i];
+ else
+ size = info->start[0] + info->size - info->start[i];
+ erased = 1;
+ flash = (volatile unsigned long *) info->start[i];
+ size = size >> 2; /* divide by 4 for longword access */
+ for (k = 0; k < size; k++) {
+ if (*flash++ != 0xffffffff) {
+ erased = 0;
+ break;
+ }
+ }
+
+ /* print empty and read-only info */
+ printf (" %08lX %c %s ",
+ info->start[i],
+ erased ? 'E' : ' ',
+ info->protect[i] ? "RO" : " ");
+ }
+#else /* ! CFG_FLASH_EMPTY_INFO */
+ printf (" %08lX %s ",
+ info->start[i],
+ info->protect[i] ? "RO" : " ");
+#endif
+ }
+ putchar('\n');
+ return;
+}
+
#if 0
-/*-----------------------------------------------------------------------
+/*
* flash_read_user_serial - read the OneTimeProgramming cells
*/
static void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
@@ -660,47 +815,29 @@ static void flash_read_factory_serial (flash_info_t * info, void *buffer, int of
memcpy (buffer, src + offset, len);
flash_write_cmd (info, 0, 0, info->cmd_reset);
}
-#endif
+#endif
-/*
- * flash_is_busy - check to see if the flash is busy
- * This routine checks the status of the chip and returns true if the chip is busy
- */
-static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
+int flash_status_check (flash_info_t * info, flash_sect_t sector,
+ uint64_t tout, char *prompt)
{
- int retval;
-
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE);
- break;
- default:
- retval = 0;
- }
- debug ("flash_is_busy: %d\n", retval);
- return retval;
+ return info->cfi_cmd_set->flash_status_check(info, sector, tout, prompt);
}
-/*-----------------------------------------------------------------------
+/*
* wait for XSR.7 to be set. Time out with an error if it does not.
* This routine does not set the flash to read-array mode.
*/
-static int flash_status_check (flash_info_t * info, flash_sect_t sector,
+int flash_generic_status_check (flash_info_t * info, flash_sect_t sector,
uint64_t tout, char *prompt)
{
uint64_t start;
- tout *= 1000000;
+ tout *= 1000000;
/* Wait for command completion */
start = get_time_ns();
- while (flash_is_busy (info, sector)) {
+ while (info->cfi_cmd_set->flash_is_busy (info, sector)) {
if (is_timeout(start, tout)) {
printf ("Flash %s timeout at address %lx data %lx\n",
prompt, info->start[sector],
@@ -713,96 +850,10 @@ static int flash_status_check (flash_info_t * info, flash_sect_t sector,
return ERR_OK;
}
-/*-----------------------------------------------------------------------
- * Wait for XSR.7 to be set, if it times out print an error, otherwise do a full status check.
- * This routine sets the flash to read-array mode.
- */
-static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
- uint64_t tout, char *prompt)
-{
- int retcode;
-
- retcode = flash_status_check (info, sector, tout, prompt);
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- if ((retcode == ERR_OK)
- && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) {
- retcode = ERR_INVAL;
- printf ("Flash %s error at address %lx\n", prompt,
- info->start[sector]);
- if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS | FLASH_STATUS_PSLBS)) {
- puts ("Command Sequence Error.\n");
- } else if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS)) {
- puts ("Block Erase Error.\n");
- retcode = ERR_NOT_ERASED;
- } else if (flash_isset (info, sector, 0, FLASH_STATUS_PSLBS)) {
- puts ("Locking Error\n");
- }
- if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
- puts ("Block locked.\n");
- retcode = ERR_PROTECTED;
- }
- if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
- puts ("Vpp Low Error.\n");
- }
- flash_write_cmd (info, sector, 0, info->cmd_reset);
- break;
- default:
- break;
- }
- return retcode;
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
-{
-#if defined(__LITTLE_ENDIAN)
- unsigned short w;
- unsigned int l;
- unsigned long long ll;
-#endif
-
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- cword->c = c;
- break;
- case FLASH_CFI_16BIT:
-#if defined(__LITTLE_ENDIAN)
- w = c;
- w <<= 8;
- cword->w = (cword->w >> 8) | w;
-#else
- cword->w = (cword->w << 8) | c;
-#endif
- break;
- case FLASH_CFI_32BIT:
-#if defined(__LITTLE_ENDIAN)
- l = c;
- l <<= 24;
- cword->l = (cword->l >> 8) | l;
-#else
- cword->l = (cword->l << 8) | c;
-#endif
- break;
- case FLASH_CFI_64BIT:
-#if defined(__LITTLE_ENDIAN)
- ll = c;
- ll <<= 56;
- cword->ll = (cword->ll >> 8) | ll;
-#else
- cword->ll = (cword->ll << 8) | c;
-#endif
- break;
- }
-}
-
-
-/*-----------------------------------------------------------------------
+/*
* make a proper sized command based on the port and chip widths
*/
-static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf)
+void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf)
{
int i;
uchar *cp = (uchar *) cmdbuf;
@@ -818,70 +869,18 @@ static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf)
/*
* Write a proper sized command to the correct address
*/
-static void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
+void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
{
- volatile cfiptr_t addr;
+ uchar *addr;
cfiword_t cword;
- addr.cp = flash_make_addr (info, sect, offset);
+ addr = flash_make_addr (info, sect, offset);
flash_make_cmd (info, cmd, &cword);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- debug("fwc addr %p cmd %x %x 8bit x %d bit\n", addr.cp, cmd,
- cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- *addr.cp = cword.c;
-#ifdef CONFIG_BLACKFIN
- asm("ssync;");
-#endif
- break;
- case FLASH_CFI_16BIT:
- debug("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr.wp,
- cmd, cword.w,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- *addr.wp = cword.w;
-#ifdef CONFIG_BLACKFIN
- asm("ssync;");
-#endif
- break;
- case FLASH_CFI_32BIT:
- debug("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr.lp,
- cmd, cword.l,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- *addr.lp = cword.l;
-#ifdef CONFIG_BLACKFIN
- asm("ssync;");
-#endif
- break;
- case FLASH_CFI_64BIT:
-#ifdef DEBUG
- {
- char str[20];
-
- print_longlong (str, cword.ll);
-
- debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
- addr.llp, cmd, str,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- }
-#endif
- *addr.llp = cword.ll;
-#ifdef CONFIG_BLACKFIN
- asm("ssync;");
-#endif
- break;
- }
+ flash_write_word(info, cword, addr);
}
-static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
-{
- flash_write_cmd (info, sect, AMD_ADDR_START, AMD_CMD_UNLOCK_START);
- flash_write_cmd (info, sect, AMD_ADDR_ACK, AMD_CMD_UNLOCK_ACK);
-}
-
-/*-----------------------------------------------------------------------
- */
-static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
+int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
{
cfiptr_t cptr;
cfiword_t cword;
@@ -891,20 +890,16 @@ static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, u
flash_make_cmd (info, cmd, &cword);
debug ("is= cmd %x(%c) addr %p ", cmd, cmd, cptr.cp);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
+ if (bankwidth_is_1(info)) {
debug ("is= %x %x\n", cptr.cp[0], cword.c);
retval = (cptr.cp[0] == cword.c);
- break;
- case FLASH_CFI_16BIT:
+ } else if (bankwidth_is_2(info)) {
debug ("is= %4.4x %4.4x\n", cptr.wp[0], cword.w);
retval = (cptr.wp[0] == cword.w);
- break;
- case FLASH_CFI_32BIT:
+ } else if (bankwidth_is_4(info)) {
debug ("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l);
retval = (cptr.lp[0] == cword.l);
- break;
- case FLASH_CFI_64BIT:
+ } else if (bankwidth_is_8(info)) {
#ifdef DEBUG
{
char str1[20];
@@ -916,17 +911,13 @@ static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, u
}
#endif
retval = (cptr.llp[0] == cword.ll);
- break;
- default:
+ } else
retval = 0;
- break;
- }
+
return retval;
}
-/*-----------------------------------------------------------------------
- */
-static int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
+int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
{
cfiptr_t cptr;
cfiword_t cword;
@@ -934,515 +925,20 @@ static int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uch
cptr.cp = flash_make_addr (info, sect, offset);
flash_make_cmd (info, cmd, &cword);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
+ if (bankwidth_is_1(info)) {
retval = ((cptr.cp[0] & cword.c) == cword.c);
- break;
- case FLASH_CFI_16BIT:
+ } else if (bankwidth_is_2(info)) {
retval = ((cptr.wp[0] & cword.w) == cword.w);
- break;
- case FLASH_CFI_32BIT:
+ } else if (bankwidth_is_4(info)) {
retval = ((cptr.lp[0] & cword.l) == cword.l);
- break;
- case FLASH_CFI_64BIT:
+ } else if (bankwidth_is_8(info)) {
retval = ((cptr.llp[0] & cword.ll) == cword.ll);
- break;
- default:
+ } else
retval = 0;
- break;
- }
- return retval;
-}
-
-/*-----------------------------------------------------------------------
- */
-static int flash_toggle (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
-{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
- cptr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- retval = ((cptr.cp[0] & cword.c) != (cptr.cp[0] & cword.c));
- break;
- case FLASH_CFI_16BIT:
- retval = ((cptr.wp[0] & cword.w) != (cptr.wp[0] & cword.w));
- break;
- case FLASH_CFI_32BIT:
- retval = ((cptr.lp[0] & cword.l) != (cptr.lp[0] & cword.l));
- break;
- case FLASH_CFI_64BIT:
- retval = ((cptr.llp[0] & cword.ll) !=
- (cptr.llp[0] & cword.ll));
- break;
- default:
- retval = 0;
- break;
- }
return retval;
}
-/*-----------------------------------------------------------------------
- * read jedec ids from device and set corresponding fields in info struct
- *
- * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct
- *
-*/
-static void flash_read_jedec_ids (flash_info_t * info)
-{
- info->manufacturer_id = 0;
- info->device_id = 0;
- info->device_id2 = 0;
-
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
- flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
- udelay(1000); /* some flash are slow to respond */
- info->manufacturer_id = flash_read_uchar (info,
- FLASH_OFFSET_MANUFACTURER_ID);
- info->device_id = flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID);
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
- flash_unlock_seq(info, 0);
- flash_write_cmd(info, 0, AMD_ADDR_START, FLASH_CMD_READ_ID);
- udelay(1000); /* some flash are slow to respond */
- info->manufacturer_id = flash_read_uchar (info,
- FLASH_OFFSET_MANUFACTURER_ID);
- info->device_id = flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID);
- if (info->device_id == 0x7E) {
- /* AMD 3-byte (expanded) device ids */
- info->device_id2 = flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID2);
- info->device_id2 <<= 8;
- info->device_id2 |= flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID3);
- }
- flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
- break;
- default:
- break;
- }
-}
-
-/*-----------------------------------------------------------------------
- * detect if flash is compatible with the Common Flash Interface (CFI)
- * http://www.jedec.org/download/search/jesd68.pdf
- *
-*/
-static int flash_detect_cfi (flash_info_t * info)
-{
- int cfi_offset;
- debug ("flash detect cfi\n");
-
- for (info->portwidth = CFG_FLASH_CFI_WIDTH;
- info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) {
- for (info->chipwidth = FLASH_CFI_BY8;
- info->chipwidth <= info->portwidth;
- info->chipwidth <<= 1) {
- flash_write_cmd (info, 0, 0, info->cmd_reset);
- for (cfi_offset=0; cfi_offset < sizeof(flash_offset_cfi)/sizeof(uint); cfi_offset++) {
- flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset], FLASH_CMD_CFI);
- if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
- && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
- && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
- info->interface = flash_read_ushort (info, 0, FLASH_OFFSET_INTERFACE);
- info->cfi_offset=flash_offset_cfi[cfi_offset];
- debug ("device interface is %d\n",
- info->interface);
- debug ("found port %d chip %d ",
- info->portwidth, info->chipwidth);
- debug ("port %d bits chip %d bits\n",
- info->portwidth << CFI_FLASH_SHIFT_WIDTH,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- return 1;
- }
- }
- }
- }
- debug ("not found\n");
- return 0;
-}
-
-/*
- * The following code cannot be run from FLASH!
- *
- */
-static ulong flash_get_size (flash_info_t *info, ulong base)
-{
- int i, j;
- flash_sect_t sect_cnt;
- unsigned long sector;
- unsigned long tmp;
- int size_ratio;
- uchar num_erase_regions;
- int erase_region_size;
- int erase_region_count;
- int geometry_reversed = 0;
-
- info->ext_addr = 0;
- info->cfi_version = 0;
- info->legacy_unlock = 0;
-
- /* first only malloc space for the first sector */
- info->start = malloc(sizeof(ulong));
-
- info->start[0] = base;
- info->protect = 0;
-
- if (flash_detect_cfi (info)) {
- info->vendor = flash_read_ushort (info, 0,
- FLASH_OFFSET_PRIMARY_VENDOR);
- flash_read_jedec_ids (info);
- flash_write_cmd (info, 0, info->cfi_offset, FLASH_CMD_CFI);
- num_erase_regions = flash_read_uchar (info,
- FLASH_OFFSET_NUM_ERASE_REGIONS);
- info->ext_addr = flash_read_ushort (info, 0,
- FLASH_OFFSET_EXT_QUERY_T_P_ADDR);
- if (info->ext_addr) {
- info->cfi_version = (ushort) flash_read_uchar (info,
- info->ext_addr + 3) << 8;
- info->cfi_version |= (ushort) flash_read_uchar (info,
- info->ext_addr + 4);
- }
-#ifdef DEBUG
- flash_printqry (info, 0);
-#endif
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- default:
- info->cmd_reset = FLASH_CMD_RESET;
- /* read legacy lock/unlock bit from intel flash */
- if (info->ext_addr) {
- info->legacy_unlock = flash_read_uchar (info,
- info->ext_addr + 5) & 0x08;
- }
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- info->cmd_reset = AMD_CMD_RESET;
- /* check if flash geometry needs reversal */
- if (num_erase_regions <= 1)
- break;
- /* reverse geometry if top boot part */
- if (info->cfi_version < 0x3131) {
- /* CFI < 1.1, try to guess from device id */
- if ((info->device_id & 0x80) != 0) {
- geometry_reversed = 1;
- }
- break;
- }
- /* CFI >= 1.1, deduct from top/bottom flag */
- /* note: ext_addr is valid since cfi_version > 0 */
- if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
- geometry_reversed = 1;
- }
- break;
- }
-
- debug ("manufacturer is %d\n", info->vendor);
- debug ("manufacturer id is 0x%x\n", info->manufacturer_id);
- debug ("device id is 0x%x\n", info->device_id);
- debug ("device id2 is 0x%x\n", info->device_id2);
- debug ("cfi version is 0x%04x\n", info->cfi_version);
-
- size_ratio = info->portwidth / info->chipwidth;
- /* if the chip is x8/x16 reduce the ratio by half */
- if ((info->interface == FLASH_CFI_X8X16)
- && (info->chipwidth == FLASH_CFI_BY8)) {
- size_ratio >>= 1;
- }
- debug ("size_ratio %d port %d bits chip %d bits\n",
- size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- debug ("found %d erase regions\n", num_erase_regions);
- sect_cnt = 0;
- sector = base;
-
- for (i = 0; i < num_erase_regions; i++) {
- if (i > NUM_ERASE_REGIONS) {
- printf ("%d erase regions found, only %d used\n",
- num_erase_regions, NUM_ERASE_REGIONS);
- break;
- }
- if (geometry_reversed)
- tmp = flash_read_long (info, 0,
- FLASH_OFFSET_ERASE_REGIONS +
- (num_erase_regions - 1 - i) * 4);
- else
- tmp = flash_read_long (info, 0,
- FLASH_OFFSET_ERASE_REGIONS +
- i * 4);
- erase_region_size =
- (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
- tmp >>= 16;
- erase_region_count = (tmp & 0xffff) + 1;
- debug ("erase_region_count = %d erase_region_size = %d\n",
- erase_region_count, erase_region_size);
-
- /* increase the space malloced for the sector start addresses */
- info->start = realloc(info->start, sizeof(ulong) * (erase_region_count + sect_cnt));
- info->protect = realloc(info->protect, sizeof(ulong) * (erase_region_count + sect_cnt));
-
- for (j = 0; j < erase_region_count; j++) {
- info->start[sect_cnt] = sector;
- sector += (erase_region_size * size_ratio);
-
- /*
- * Only read protection status from supported devices (intel...)
- */
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- info->protect[sect_cnt] =
- flash_isset (info, sect_cnt,
- FLASH_OFFSET_PROTECT,
- FLASH_STATUS_PROTECT);
- break;
- default:
- info->protect[sect_cnt] = 0; /* default: not protected */
- }
-
- sect_cnt++;
- }
- }
-
- info->sector_count = sect_cnt;
- /* multiply the size by the number of chips */
- info->size = (1 << flash_read_uchar (info, FLASH_OFFSET_SIZE)) * size_ratio;
- info->buffer_size = (1 << flash_read_ushort (info, 0, FLASH_OFFSET_BUFFER_SIZE));
- tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_ETOUT);
- info->erase_blk_tout = (tmp * (1 << flash_read_uchar (info, FLASH_OFFSET_EMAX_TOUT)));
- tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WBTOUT)) *
- (1 << flash_read_uchar (info, FLASH_OFFSET_WBMAX_TOUT));
- info->buffer_write_tout = tmp * 1000;
- tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WTOUT)) *
- (1 << flash_read_uchar (info, FLASH_OFFSET_WMAX_TOUT));
- info->write_tout = tmp * 1000;
- info->flash_id = FLASH_MAN_CFI;
- if ((info->interface == FLASH_CFI_X8X16) && (info->chipwidth == FLASH_CFI_BY8)) {
- info->portwidth >>= 1; /* XXX - Need to test on x8/x16 in parallel. */
- }
- }
-
- flash_write_cmd (info, 0, 0, info->cmd_reset);
- return (info->size);
-}
-
-/* loop through the sectors from the highest address
- * when the passed address is greater or equal to the sector address
- * we have a match
- */
-static flash_sect_t find_sector (flash_info_t * info, ulong addr)
-{
- flash_sect_t sector;
-
- for (sector = info->sector_count - 1; sector >= 0; sector--) {
- if (addr >= info->start[sector])
- break;
- }
- return sector;
-}
-
-/*-----------------------------------------------------------------------
- */
-static int flash_write_cfiword (flash_info_t * info, ulong dest,
- cfiword_t cword)
-{
- cfiptr_t ctladdr;
- cfiptr_t cptr;
- int flag;
-
- ctladdr.cp = flash_make_addr (info, 0, 0);
- cptr.cp = (uchar *) dest;
-
-
- /* Check if Flash is (sufficiently) erased */
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- flag = ((cptr.cp[0] & cword.c) == cword.c);
- break;
- case FLASH_CFI_16BIT:
- flag = ((cptr.wp[0] & cword.w) == cword.w);
- break;
- case FLASH_CFI_32BIT:
- flag = ((cptr.lp[0] & cword.l) == cword.l);
- break;
- case FLASH_CFI_64BIT:
- flag = ((cptr.llp[0] & cword.ll) == cword.ll);
- break;
- default:
- return 2;
- }
- if (!flag)
- return 2;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
-
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
- break;
- case CFI_CMDSET_AMD_EXTENDED:
- case CFI_CMDSET_AMD_STANDARD:
- flash_unlock_seq (info, 0);
- flash_write_cmd (info, 0, AMD_ADDR_START, AMD_CMD_WRITE);
- break;
- }
-
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- cptr.cp[0] = cword.c;
- break;
- case FLASH_CFI_16BIT:
- cptr.wp[0] = cword.w;
- break;
- case FLASH_CFI_32BIT:
- cptr.lp[0] = cword.l;
- break;
- case FLASH_CFI_64BIT:
- cptr.llp[0] = cword.ll;
- break;
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- return flash_full_status_check (info, find_sector (info, dest),
- info->write_tout, "write");
-}
-
-#ifdef CONFIG_CFI_BUFFER_WRITE
-
-static int flash_write_cfibuffer (flash_info_t * info, ulong dest, const uchar * cp,
- int len)
-{
- flash_sect_t sector;
- int cnt;
- int retcode;
- volatile cfiptr_t src;
- volatile cfiptr_t dst;
-
- /* reduce width due to possible alignment problems */
- const unsigned long ptr = (unsigned long)dest | (unsigned long)cp | info->portwidth;
- const int width = ptr & -ptr;
-
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- src.cp = (uchar *)cp;
- dst.cp = (uchar *) dest;
- sector = find_sector (info, dest);
- flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER);
- if ((retcode = flash_status_check (info, sector, info->buffer_write_tout,
- "write to buffer")) == ERR_OK) {
- /* reduce the number of loops by the width of the port */
- switch (width) {
- case FLASH_CFI_8BIT:
- cnt = len;
- break;
- case FLASH_CFI_16BIT:
- cnt = len >> 1;
- break;
- case FLASH_CFI_32BIT:
- cnt = len >> 2;
- break;
- case FLASH_CFI_64BIT:
- cnt = len >> 3;
- break;
- default:
- return ERR_INVAL;
- break;
- }
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) {
- switch (width) {
- case FLASH_CFI_8BIT:
- *dst.cp++ = *src.cp++;
- break;
- case FLASH_CFI_16BIT:
- *dst.wp++ = *src.wp++;
- break;
- case FLASH_CFI_32BIT:
- *dst.lp++ = *src.lp++;
- break;
- case FLASH_CFI_64BIT:
- *dst.llp++ = *src.llp++;
- break;
- default:
- return ERR_INVAL;
- break;
- }
- }
- flash_write_cmd (info, sector, 0,
- FLASH_CMD_WRITE_BUFFER_CONFIRM);
- retcode = flash_full_status_check (info, sector,
- info->buffer_write_tout,
- "buffer write");
- }
- return retcode;
-
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- src.cp = (uchar *)cp;
- dst.cp = (uchar *) dest;
- sector = find_sector (info, dest);
-
- flash_unlock_seq(info,0);
- flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_TO_BUFFER);
-
- switch (width) {
- case FLASH_CFI_8BIT:
- cnt = len;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.cp++ = *src.cp++;
- break;
- case FLASH_CFI_16BIT:
- cnt = len >> 1;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.wp++ = *src.wp++;
- break;
- case FLASH_CFI_32BIT:
- cnt = len >> 2;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.lp++ = *src.lp++;
- break;
- case FLASH_CFI_64BIT:
- cnt = len >> 3;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.llp++ = *src.llp++;
- break;
- default:
- return ERR_INVAL;
- }
-
- flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
- retcode = flash_full_status_check (info, sector, info->buffer_write_tout,
- "buffer write");
- return retcode;
-
- default:
- debug ("Unknown Command Set\n");
- return ERR_INVAL;
- }
-}
-#endif /* CONFIG_CFI_BUFFER_WRITE */
-
struct file_operations cfi_ops = {
.read = mem_read,
.write = cfi_write,
@@ -1464,6 +960,12 @@ static int cfi_probe (struct device_d *dev)
/* Init: no FLASHes known */
info->flash_id = FLASH_UNKNOWN;
size += info->size = flash_get_size(info, dev->map_base);
+
+ if (dev->size == 0) {
+ printf("cfi_probe: size : 0x%08x\n", info->size);
+ dev->size = info->size;
+ }
+
if (info->flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank at 0x%08x - Size = 0x%08lx = %ld MB\n",
dev->map_base, info->size, info->size << 20);
@@ -1481,34 +983,15 @@ static int cfi_probe (struct device_d *dev)
}
static struct driver_d cfi_driver = {
- .name = "cfi_flash",
- .probe = cfi_probe,
- .info = cfi_info,
+ .name = "cfi_flash",
+ .probe = cfi_probe,
+ .info = cfi_info,
};
static int cfi_init(void)
{
- return register_driver(&cfi_driver);
+ return register_driver(&cfi_driver);
}
device_initcall(cfi_init);
-/**
- * @file
- * @brief This file implements a Common Flash Interface (CFI) driver for barebox.
- *
- * This file implements a Common Flash Interface (CFI) driver for barebox.
- * The width of the port and the width of the chips are determined at initialization.
- * These widths are used to calculate the address for access CFI data structures.
- *
- * References
- *
- * - JEDEC Standard JESD68 - Common Flash Interface (CFI)
- * - JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
- * - Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
- * - Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
- * - AMD CFI Specification, Release 2.0 December 1, 2001
- * - AMD/Spansion Application Note: Migration from Single-byte to Three-byte
- * Device IDs, Publication Number 25538 Revision A, November 8, 2001
- *
- */
diff --git a/drivers/nor/cfi_flash_amd.c b/drivers/nor/cfi_flash_amd.c
index 44eb881..403405e 100644
--- a/drivers/nor/cfi_flash_amd.c
+++ b/drivers/nor/cfi_flash_amd.c
@@ -1,6 +1,6 @@
#include <common.h>
#include <stdio.h>
-#include <cfi_flash_new.h>
+#include <cfi_flash.h>
static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
{
diff --git a/drivers/nor/cfi_flash_intel.c b/drivers/nor/cfi_flash_intel.c
index c2d92e7..98e0ee5 100644
--- a/drivers/nor/cfi_flash_intel.c
+++ b/drivers/nor/cfi_flash_intel.c
@@ -1,5 +1,5 @@
#include <common.h>
-#include <cfi_flash_new.h>
+#include <cfi_flash.h>
/*
* read jedec ids from device and set corresponding fields in info struct
diff --git a/drivers/nor/cfi_flash_new.c b/drivers/nor/cfi_flash_new.c
deleted file mode 100644
index 88432c8..0000000
--- a/drivers/nor/cfi_flash_new.c
+++ /dev/null
@@ -1,997 +0,0 @@
-/*
- * (C) Copyright 2002-2004
- * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com
- *
- * Copyright (C) 2003 Arabella Software Ltd.
- * Yuli Barcohen <yuli@arabellasw.com>
- *
- * Copyright (C) 2004
- * Ed Okerson
- *
- * Copyright (C) 2006
- * Tolunay Orkun <listmember@orkun.us>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- */
-
-/* The DEBUG define must be before common to enable debugging */
-/* #define DEBUG */
-
-#include <common.h>
-#include <asm/byteorder.h>
-#include <environment.h>
-#include <clock.h>
-#include <init.h>
-#include <malloc.h>
-#include <cfi_flash_new.h>
-#include <asm/io.h>
-#include <errno.h>
-
-/*
- * This file implements a Common Flash Interface (CFI) driver for barebox.
- * The width of the port and the width of the chips are determined at initialization.
- * These widths are used to calculate the address for access CFI data structures.
- *
- * References
- * JEDEC Standard JESD68 - Common Flash Interface (CFI)
- * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
- * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
- * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
- * AMD CFI Specification, Release 2.0 December 1, 2001
- * AMD/Spansion Application Note: Migration from Single-byte to Three-byte
- * Device IDs, Publication Number 25538 Revision A, November 8, 2001
- *
- */
-
-#define NUM_ERASE_REGIONS 4 /* max. number of erase regions */
-
-static uint flash_offset_cfi[2]={FLASH_OFFSET_CFI,FLASH_OFFSET_CFI_ALT};
-
-/*
- * Check if chip width is defined. If not, start detecting with 8bit.
- */
-#ifndef CFG_FLASH_CFI_WIDTH
-#define CFG_FLASH_CFI_WIDTH FLASH_CFI_8BIT
-#endif
-
-
-/*
- * Functions
- */
-
-static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
-{
-#if defined(__LITTLE_ENDIAN)
- unsigned short w;
- unsigned int l;
- unsigned long long ll;
-#endif
-
- if (bankwidth_is_1(info)) {
- cword->c = c;
- } else if (bankwidth_is_2(info)) {
-#if defined(__LITTLE_ENDIAN)
- w = c;
- w <<= 8;
- cword->w = (cword->w >> 8) | w;
-#else
- cword->w = (cword->w << 8) | c;
-#endif
- } else if (bankwidth_is_4(info)) {
-#if defined(__LITTLE_ENDIAN)
- l = c;
- l <<= 24;
- cword->l = (cword->l >> 8) | l;
-#else
- cword->l = (cword->l << 8) | c;
-#endif
- } else if (bankwidth_is_8(info)) {
-#if defined(__LITTLE_ENDIAN)
- ll = c;
- ll <<= 56;
- cword->ll = (cword->ll >> 8) | ll;
-#else
- cword->ll = (cword->ll << 8) | c;
-#endif
- }
-}
-
-static int flash_write_cfiword (flash_info_t * info, ulong dest,
- cfiword_t cword)
-{
- cfiptr_t ctladdr;
- cfiptr_t cptr;
- int flag;
-
- ctladdr.cp = flash_make_addr (info, 0, 0);
- cptr.cp = (uchar *) dest;
-
- /* Check if Flash is (sufficiently) erased */
- if (bankwidth_is_1(info)) {
- flag = ((cptr.cp[0] & cword.c) == cword.c);
- } else if (bankwidth_is_2(info)) {
- flag = ((cptr.wp[0] & cword.w) == cword.w);
- } else if (bankwidth_is_4(info)) {
- flag = ((cptr.lp[0] & cword.l) == cword.l);
- } else if (bankwidth_is_8(info)) {
- flag = ((cptr.llp[0] & cword.ll) == cword.ll);
- } else
- return 2;
-
- if (!flag)
- return 2;
-
- /* Disable interrupts which might cause a timeout here */
-// flag = disable_interrupts ();
-
- info->cfi_cmd_set->flash_prepare_write(info);
-
- if (bankwidth_is_1(info)) {
- cptr.cp[0] = cword.c;
- } else if (bankwidth_is_2(info)) {
- cptr.wp[0] = cword.w;
- } else if (bankwidth_is_4(info)) {
- cptr.lp[0] = cword.l;
- } else if (bankwidth_is_8(info)) {
- cptr.llp[0] = cword.ll;
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- return flash_status_check (info, find_sector (info, dest),
- info->write_tout, "write");
-}
-
-#ifdef DEBUG
-/*
- * Debug support
- */
-void print_longlong (char *str, unsigned long long data)
-{
- int i;
- char *cp;
-
- cp = (unsigned char *) &data;
- for (i = 0; i < 8; i++)
- sprintf (&str[i * 2], "%2.2x", *cp++);
-}
-
-static void flash_printqry (flash_info_t * info, flash_sect_t sect)
-{
- cfiptr_t cptr;
- int x, y;
-
- for (x = 0; x < 0x40; x += 16U / info->portwidth) {
- cptr.cp =
- flash_make_addr (info, sect,
- x + FLASH_OFFSET_CFI_RESP);
- debug ("%p : ", cptr.cp);
- for (y = 0; y < 16; y++) {
- debug ("%2.2x ", cptr.cp[y]);
- }
- debug (" ");
- for (y = 0; y < 16; y++) {
- if (cptr.cp[y] >= 0x20 && cptr.cp[y] <= 0x7e) {
- debug ("%c", cptr.cp[y]);
- } else {
- debug (".");
- }
- }
- debug ("\n");
- }
-}
-#endif
-
-/*
- * read a short word by swapping for ppc format.
- */
-static ushort flash_read_ushort (flash_info_t * info, flash_sect_t sect, uint offset)
-{
- uchar *addr;
- ushort retval;
-
-#ifdef DEBUG
- int x;
-#endif
- addr = flash_make_addr (info, sect, offset);
-
-#ifdef DEBUG
- debug ("ushort addr is at %p info->portwidth = %d\n", addr,
- info->portwidth);
- for (x = 0; x < 2 * info->portwidth; x++) {
- debug ("addr[%x] = 0x%x\n", x, addr[x]);
- }
-#endif
-#if defined(__LITTLE_ENDIAN)
- retval = ((addr[(info->portwidth)] << 8) | addr[0]);
-#else
- retval = ((addr[(2 * info->portwidth) - 1] << 8) |
- addr[info->portwidth - 1]);
-#endif
-
- debug ("retval = 0x%x\n", retval);
- return retval;
-}
-
-/*
- * read a long word by picking the least significant byte of each maximum
- * port size word. Swap for ppc format.
- */
-static ulong flash_read_long (flash_info_t * info, flash_sect_t sect, uint offset)
-{
- uchar *addr;
- ulong retval;
-
-#ifdef DEBUG
- int x;
-#endif
- addr = flash_make_addr (info, sect, offset);
-
-#ifdef DEBUG
- debug ("long addr is at %p info->portwidth = %d\n", addr,
- info->portwidth);
- for (x = 0; x < 4 * info->portwidth; x++) {
- debug ("addr[%x] = 0x%x\n", x, addr[x]);
- }
-#endif
-#if defined(__LITTLE_ENDIAN)
- retval = (addr[0] << 16) | (addr[(info->portwidth)] << 24) |
- (addr[(2 * info->portwidth)]) | (addr[(3 * info->portwidth)] << 8);
-#else
- retval = (addr[(2 * info->portwidth) - 1] << 24) |
- (addr[(info->portwidth) - 1] << 16) |
- (addr[(4 * info->portwidth) - 1] << 8) |
- addr[(3 * info->portwidth) - 1];
-#endif
- return retval;
-}
-
-/*
- * detect if flash is compatible with the Common Flash Interface (CFI)
- * http://www.jedec.org/download/search/jesd68.pdf
- *
-*/
-static int flash_detect_cfi (flash_info_t * info)
-{
- int cfi_offset;
- debug ("flash detect cfi\n");
-
- for (info->portwidth = CFG_FLASH_CFI_WIDTH;
- info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) {
- for (info->chipwidth = FLASH_CFI_BY8;
- info->chipwidth <= info->portwidth;
- info->chipwidth <<= 1) {
- flash_write_cmd (info, 0, 0, info->cmd_reset);
- for (cfi_offset=0; cfi_offset < sizeof(flash_offset_cfi)/sizeof(uint); cfi_offset++) {
- flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset], FLASH_CMD_CFI);
- if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
- && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
- && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
- info->interface = flash_read_ushort (info, 0, FLASH_OFFSET_INTERFACE);
- info->cfi_offset=flash_offset_cfi[cfi_offset];
- debug ("device interface is %d\n",
- info->interface);
- debug ("found port %d chip %d ",
- info->portwidth, info->chipwidth);
- debug ("port %d bits chip %d bits\n",
- info->portwidth << CFI_FLASH_SHIFT_WIDTH,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- return 1;
- }
- }
- }
- }
- debug ("not found\n");
- return 0;
-}
-
-/*
- * The following code cannot be run from FLASH!
- */
-static ulong flash_get_size (flash_info_t *info, ulong base)
-{
- int i, j;
- flash_sect_t sect_cnt;
- unsigned long sector;
- unsigned long tmp;
- int size_ratio;
- uchar num_erase_regions;
- int erase_region_size;
- int erase_region_count;
- int geometry_reversed = 0;
-
- info->ext_addr = 0;
- info->cfi_version = 0;
-#ifdef CFG_FLASH_PROTECTION
- info->legacy_unlock = 0;
-#endif
-
- /* first only malloc space for the first sector */
- info->start = malloc(sizeof(ulong));
-
- info->start[0] = base;
- info->protect = 0;
-
- if (flash_detect_cfi (info)) {
- info->vendor = flash_read_ushort (info, 0,
- FLASH_OFFSET_PRIMARY_VENDOR);
- switch (info->vendor) {
-#ifdef CONFIG_DRIVER_CFI_INTEL
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- info->cfi_cmd_set = &cfi_cmd_set_intel;
- break;
-#endif
-#ifdef CONFIG_DRIVER_CFI_AMD
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- info->cfi_cmd_set = &cfi_cmd_set_amd;
- break;
-#endif
- default:
- printf("unsupported vendor\n");
- return 0;
- }
- info->cfi_cmd_set->flash_read_jedec_ids (info);
- flash_write_cmd (info, 0, info->cfi_offset, FLASH_CMD_CFI);
- num_erase_regions = flash_read_uchar (info,
- FLASH_OFFSET_NUM_ERASE_REGIONS);
- info->ext_addr = flash_read_ushort (info, 0,
- FLASH_OFFSET_EXT_QUERY_T_P_ADDR);
- if (info->ext_addr) {
- info->cfi_version = (ushort) flash_read_uchar (info,
- info->ext_addr + 3) << 8;
- info->cfi_version |= (ushort) flash_read_uchar (info,
- info->ext_addr + 4);
- }
-#ifdef DEBUG
- flash_printqry (info, 0);
-#endif
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- default:
- info->cmd_reset = FLASH_CMD_RESET;
-#ifdef CFG_FLASH_PROTECTION
- /* read legacy lock/unlock bit from intel flash */
- if (info->ext_addr) {
- info->legacy_unlock = flash_read_uchar (info,
- info->ext_addr + 5) & 0x08;
- }
-#endif
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- info->cmd_reset = AMD_CMD_RESET;
- /* check if flash geometry needs reversal */
- if (num_erase_regions <= 1)
- break;
- /* reverse geometry if top boot part */
- if (info->cfi_version < 0x3131) {
- /* CFI < 1.1, try to guess from device id */
- if ((info->device_id & 0x80) != 0) {
- geometry_reversed = 1;
- }
- break;
- }
- /* CFI >= 1.1, deduct from top/bottom flag */
- /* note: ext_addr is valid since cfi_version > 0 */
- if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
- geometry_reversed = 1;
- }
- break;
- }
-
- debug ("manufacturer is %d\n", info->vendor);
- debug ("manufacturer id is 0x%x\n", info->manufacturer_id);
- debug ("device id is 0x%x\n", info->device_id);
- debug ("device id2 is 0x%x\n", info->device_id2);
- debug ("cfi version is 0x%04x\n", info->cfi_version);
-
- size_ratio = info->portwidth / info->chipwidth;
- /* if the chip is x8/x16 reduce the ratio by half */
- if ((info->interface == FLASH_CFI_X8X16)
- && (info->chipwidth == FLASH_CFI_BY8)) {
- size_ratio >>= 1;
- }
- debug ("size_ratio %d port %d bits chip %d bits\n",
- size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- debug ("found %d erase regions\n", num_erase_regions);
- sect_cnt = 0;
- sector = base;
-
- for (i = 0; i < num_erase_regions; i++) {
- if (i > NUM_ERASE_REGIONS) {
- printf ("%d erase regions found, only %d used\n",
- num_erase_regions, NUM_ERASE_REGIONS);
- break;
- }
- if (geometry_reversed)
- tmp = flash_read_long (info, 0,
- FLASH_OFFSET_ERASE_REGIONS +
- (num_erase_regions - 1 - i) * 4);
- else
- tmp = flash_read_long (info, 0,
- FLASH_OFFSET_ERASE_REGIONS +
- i * 4);
- erase_region_size =
- (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
- tmp >>= 16;
- erase_region_count = (tmp & 0xffff) + 1;
- debug ("erase_region_count = %d erase_region_size = %d\n",
- erase_region_count, erase_region_size);
-
- /* increase the space malloced for the sector start addresses */
- info->start = realloc(info->start, sizeof(ulong) * (erase_region_count + sect_cnt));
- info->protect = realloc(info->protect, sizeof(uchar) * (erase_region_count + sect_cnt));
-
- for (j = 0; j < erase_region_count; j++) {
- info->start[sect_cnt] = sector;
- sector += (erase_region_size * size_ratio);
-
- /*
- * Only read protection status from supported devices (intel...)
- */
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- info->protect[sect_cnt] =
- flash_isset (info, sect_cnt,
- FLASH_OFFSET_PROTECT,
- FLASH_STATUS_PROTECT);
- break;
- default:
- info->protect[sect_cnt] = 0; /* default: not protected */
- }
-
- sect_cnt++;
- }
- }
-
- info->sector_count = sect_cnt;
- /* multiply the size by the number of chips */
- info->size = (1 << flash_read_uchar (info, FLASH_OFFSET_SIZE)) * size_ratio;
- info->buffer_size = (1 << flash_read_ushort (info, 0, FLASH_OFFSET_BUFFER_SIZE));
- tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_ETOUT);
- info->erase_blk_tout = (tmp * (1 << flash_read_uchar (info, FLASH_OFFSET_EMAX_TOUT)));
- tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WBTOUT)) *
- (1 << flash_read_uchar (info, FLASH_OFFSET_WBMAX_TOUT));
- info->buffer_write_tout = tmp * 1000;
- tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WTOUT)) *
- (1 << flash_read_uchar (info, FLASH_OFFSET_WMAX_TOUT));
- info->write_tout = tmp * 1000;
- info->flash_id = FLASH_MAN_CFI;
- if ((info->interface == FLASH_CFI_X8X16) && (info->chipwidth == FLASH_CFI_BY8)) {
- info->portwidth >>= 1; /* XXX - Need to test on x8/x16 in parallel. */
- }
- }
-
- flash_write_cmd (info, 0, 0, info->cmd_reset);
- return info->size;
-}
-
-/* loop through the sectors from the highest address
- * when the passed address is greater or equal to the sector address
- * we have a match
- */
-flash_sect_t find_sector (flash_info_t * info, ulong addr)
-{
- flash_sect_t sector;
-
- for (sector = info->sector_count - 1; sector >= 0; sector--) {
- if (addr >= info->start[sector])
- break;
- }
- return sector;
-}
-
-static int cfi_erase(struct cdev *cdev, size_t count, unsigned long offset)
-{
- flash_info_t *finfo = (flash_info_t *)cdev->priv;
- unsigned long start, end;
- int i, ret = 0;
-
- printf("%s: erase 0x%08x (size %d)\n", __FUNCTION__, offset, count);
-
- start = find_sector(finfo, cdev->dev->map_base + offset);
- end = find_sector(finfo, cdev->dev->map_base + offset + count - 1);
-
- for (i = start; i <= end; i++) {
- ret = finfo->cfi_cmd_set->flash_erase_one(finfo, i);
- if (ret)
- goto out;
- printf(".");
- }
-out:
- putchar('\n');
- return ret;
-}
-
-/*
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_buff (flash_info_t * info, const uchar * src, ulong addr, ulong cnt)
-{
- ulong wp;
- ulong cp;
- int aln;
- cfiword_t cword;
- int i, rc;
-
-#ifdef CONFIG_CFI_BUFFER_WRITE
- int buffered_size;
-#endif
- /* get lower aligned address */
- /* get lower aligned address */
- wp = (addr & ~(info->portwidth - 1));
-
- /* handle unaligned start */
- if ((aln = addr - wp) != 0) {
- cword.l = 0;
- cp = wp;
- for (i = 0; i < aln; ++i, ++cp)
- flash_add_byte (info, &cword, (*(uchar *) cp));
-
- for (; (i < info->portwidth) && (cnt > 0); i++) {
- flash_add_byte (info, &cword, *src++);
- cnt--;
- cp++;
- }
- for (; (cnt == 0) && (i < info->portwidth); ++i, ++cp)
- flash_add_byte (info, &cword, (*(uchar *) cp));
-
- rc = flash_write_cfiword (info, wp, cword);
- if (rc)
- return rc;
- wp = cp;
- }
-
- /* handle the aligned part */
-#ifdef CONFIG_CFI_BUFFER_WRITE
- buffered_size = (info->portwidth / info->chipwidth);
- buffered_size *= info->buffer_size;
- while (cnt >= info->portwidth) {
- /* prohibit buffer write when buffer_size is 1 */
- if (info->buffer_size == 1) {
- cword.l = 0;
- for (i = 0; i < info->portwidth; i++)
- flash_add_byte (info, &cword, *src++);
- if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
- return rc;
- wp += info->portwidth;
- cnt -= info->portwidth;
- continue;
- }
-
- /* write buffer until next buffered_size aligned boundary */
- i = buffered_size - (wp % buffered_size);
- if (i > cnt)
- i = cnt;
- if ((rc = info->cfi_cmd_set->flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
- return rc;
- i -= i & (info->portwidth - 1);
- wp += i;
- src += i;
- cnt -= i;
- }
-#else
- while (cnt >= info->portwidth) {
- cword.l = 0;
- for (i = 0; i < info->portwidth; i++) {
- flash_add_byte (info, &cword, *src++);
- }
- if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
- return rc;
- wp += info->portwidth;
- cnt -= info->portwidth;
- }
-#endif /* CONFIG_CFI_BUFFER_WRITE */
- if (cnt == 0) {
- return 0;
- }
-
- /*
- * handle unaligned tail bytes
- */
- cword.l = 0;
- for (i = 0, cp = wp; (i < info->portwidth) && (cnt > 0); ++i, ++cp) {
- flash_add_byte (info, &cword, *src++);
- --cnt;
- }
- for (; i < info->portwidth; ++i, ++cp) {
- flash_add_byte (info, &cword, (*(uchar *) cp));
- }
-
- return flash_write_cfiword (info, wp, cword);
-}
-
-static int flash_real_protect (flash_info_t * info, long sector, int prot)
-{
- int retcode = 0;
-
- flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
- if (prot)
- flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
- else
- flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
-
- if ((retcode =
- flash_status_check (info, sector, info->erase_blk_tout,
- prot ? "protect" : "unprotect")) == 0) {
-
- info->protect[sector] = prot;
-
- /*
- * On some of Intel's flash chips (marked via legacy_unlock)
- * unprotect unprotects all locking.
- */
- if ((prot == 0) && (info->legacy_unlock)) {
- flash_sect_t i;
-
- for (i = 0; i < info->sector_count; i++) {
- if (info->protect[i])
- flash_real_protect (info, i, 1);
- }
- }
- }
- return retcode;
-}
-
-static int cfi_protect(struct cdev *cdev, size_t count, unsigned long offset, int prot)
-{
- flash_info_t *finfo = (flash_info_t *)cdev->priv;
- unsigned long start, end;
- int i, ret = 0;
- const char *action = (prot? "protect" : "unprotect");
-
- printf("%s: %s 0x%08x (size %d)\n", __FUNCTION__,
- action, cdev->dev->map_base + offset, count);
-
- start = find_sector(finfo, cdev->dev->map_base + offset);
- end = find_sector(finfo, cdev->dev->map_base + offset + count - 1);
-
- for (i = start; i <= end; i++) {
- ret = flash_real_protect (finfo, i, prot);
- if (ret)
- goto out;
- }
-out:
- putchar('\n');
- return ret;
-}
-
-static ssize_t cfi_write(struct cdev *cdev, const void *buf, size_t count, unsigned long offset, ulong flags)
-{
- flash_info_t *finfo = (flash_info_t *)cdev->priv;
- int ret;
-
- debug("cfi_write: buf=0x%08x addr=0x%08x count=0x%08x\n",buf, cdev->dev->map_base + offset, count);
-
- ret = write_buff (finfo, buf, cdev->dev->map_base + offset, count);
- return ret == 0 ? count : -1;
-}
-
-static void cfi_info (struct device_d* dev)
-{
- flash_info_t *info = (flash_info_t *)dev->priv;
- int i;
-
- if (info->flash_id != FLASH_MAN_CFI) {
- puts ("missing or unknown FLASH type\n");
- return;
- }
-
- printf ("CFI conformant FLASH (%d x %d)",
- (info->portwidth << 3), (info->chipwidth << 3));
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
- printf (" ");
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- printf ("Intel Standard");
- break;
- case CFI_CMDSET_INTEL_EXTENDED:
- printf ("Intel Extended");
- break;
- case CFI_CMDSET_AMD_STANDARD:
- printf ("AMD Standard");
- break;
- case CFI_CMDSET_AMD_EXTENDED:
- printf ("AMD Extended");
- break;
- default:
- printf ("Unknown (%d)", info->vendor);
- break;
- }
- printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x%02X",
- info->manufacturer_id, info->device_id);
- if (info->device_id == 0x7E) {
- printf("%04X", info->device_id2);
- }
- printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
- info->erase_blk_tout,
- info->write_tout);
- if (info->buffer_size > 1) {
- printf (" Buffer write timeout: %ld ms, buffer size: %d bytes\n",
- info->buffer_write_tout,
- info->buffer_size);
- }
-
- puts ("\n Sector Start Addresses:");
- for (i = 0; i < info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n");
-#ifdef CFG_FLASH_EMPTY_INFO
- {
- int k;
- int size;
- int erased;
- volatile unsigned long *flash;
-
- /*
- * Check if whole sector is erased
- */
- if (i != (info->sector_count - 1))
- size = info->start[i + 1] - info->start[i];
- else
- size = info->start[0] + info->size - info->start[i];
- erased = 1;
- flash = (volatile unsigned long *) info->start[i];
- size = size >> 2; /* divide by 4 for longword access */
- for (k = 0; k < size; k++) {
- if (*flash++ != 0xffffffff) {
- erased = 0;
- break;
- }
- }
-
- /* print empty and read-only info */
- printf (" %08lX %c %s ",
- info->start[i],
- erased ? 'E' : ' ',
- info->protect[i] ? "RO" : " ");
- }
-#else /* ! CFG_FLASH_EMPTY_INFO */
- printf (" %08lX %s ",
- info->start[i],
- info->protect[i] ? "RO" : " ");
-#endif
- }
- putchar('\n');
- return;
-}
-
-#if 0
-/*
- * flash_read_user_serial - read the OneTimeProgramming cells
- */
-static void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
- int len)
-{
- uchar *src;
- uchar *dst;
-
- dst = buffer;
- src = flash_make_addr (info, 0, FLASH_OFFSET_USER_PROTECTION);
- flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
- memcpy (dst, src + offset, len);
- flash_write_cmd (info, 0, 0, info->cmd_reset);
-}
-
-/*
- * flash_read_factory_serial - read the device Id from the protection area
- */
-static void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
- int len)
-{
- uchar *src;
-
- src = flash_make_addr (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
- flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
- memcpy (buffer, src + offset, len);
- flash_write_cmd (info, 0, 0, info->cmd_reset);
-}
-
-#endif
-
-int flash_status_check (flash_info_t * info, flash_sect_t sector,
- uint64_t tout, char *prompt)
-{
- return info->cfi_cmd_set->flash_status_check(info, sector, tout, prompt);
-}
-
-/*
- * wait for XSR.7 to be set. Time out with an error if it does not.
- * This routine does not set the flash to read-array mode.
- */
-int flash_generic_status_check (flash_info_t * info, flash_sect_t sector,
- uint64_t tout, char *prompt)
-{
- uint64_t start;
-
- tout *= 1000000;
-
- /* Wait for command completion */
- start = get_time_ns();
- while (info->cfi_cmd_set->flash_is_busy (info, sector)) {
- if (is_timeout(start, tout)) {
- printf ("Flash %s timeout at address %lx data %lx\n",
- prompt, info->start[sector],
- flash_read_long (info, sector, 0));
- flash_write_cmd (info, sector, 0, info->cmd_reset);
- return ERR_TIMOUT;
- }
- udelay (1); /* also triggers watchdog */
- }
- return ERR_OK;
-}
-
-/*
- * make a proper sized command based on the port and chip widths
- */
-void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf)
-{
- int i;
- uchar *cp = (uchar *) cmdbuf;
-
-#if defined(__LITTLE_ENDIAN)
- for (i = info->portwidth; i > 0; i--)
-#else
- for (i = 1; i <= info->portwidth; i++)
-#endif
- *cp++ = (i & (info->chipwidth - 1)) ? '\0' : cmd;
-}
-
-/*
- * Write a proper sized command to the correct address
- */
-void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
-{
-
- uchar *addr;
- cfiword_t cword;
-
- addr = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
- flash_write_word(info, cword, addr);
-}
-
-int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
-{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
-
- cptr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
-
- debug ("is= cmd %x(%c) addr %p ", cmd, cmd, cptr.cp);
- if (bankwidth_is_1(info)) {
- debug ("is= %x %x\n", cptr.cp[0], cword.c);
- retval = (cptr.cp[0] == cword.c);
- } else if (bankwidth_is_2(info)) {
- debug ("is= %4.4x %4.4x\n", cptr.wp[0], cword.w);
- retval = (cptr.wp[0] == cword.w);
- } else if (bankwidth_is_4(info)) {
- debug ("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l);
- retval = (cptr.lp[0] == cword.l);
- } else if (bankwidth_is_8(info)) {
-#ifdef DEBUG
- {
- char str1[20];
- char str2[20];
-
- print_longlong (str1, cptr.llp[0]);
- print_longlong (str2, cword.ll);
- debug ("is= %s %s\n", str1, str2);
- }
-#endif
- retval = (cptr.llp[0] == cword.ll);
- } else
- retval = 0;
-
- return retval;
-}
-
-int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
-{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
-
- cptr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
- if (bankwidth_is_1(info)) {
- retval = ((cptr.cp[0] & cword.c) == cword.c);
- } else if (bankwidth_is_2(info)) {
- retval = ((cptr.wp[0] & cword.w) == cword.w);
- } else if (bankwidth_is_4(info)) {
- retval = ((cptr.lp[0] & cword.l) == cword.l);
- } else if (bankwidth_is_8(info)) {
- retval = ((cptr.llp[0] & cword.ll) == cword.ll);
- } else
- retval = 0;
-
- return retval;
-}
-
-struct file_operations cfi_ops = {
- .read = mem_read,
- .write = cfi_write,
- .lseek = dev_lseek_default,
- .erase = cfi_erase,
- .protect = cfi_protect,
- .memmap = generic_memmap_ro,
-};
-
-static int cfi_probe (struct device_d *dev)
-{
- unsigned long size = 0;
- flash_info_t *info = xzalloc(sizeof(flash_info_t));
-
- dev->priv = (void *)info;
-
- printf("cfi_probe: %s base: 0x%08x size: 0x%08x\n", dev->name, dev->map_base, dev->size);
-
- /* Init: no FLASHes known */
- info->flash_id = FLASH_UNKNOWN;
- size += info->size = flash_get_size(info, dev->map_base);
-
- if (dev->size == 0) {
- printf("cfi_probe: size : 0x%08x\n", info->size);
- dev->size = info->size;
- }
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank at 0x%08x - Size = 0x%08lx = %ld MB\n",
- dev->map_base, info->size, info->size << 20);
- return -ENODEV;
- }
-
- info->cdev.name = asprintf("nor%d", dev->id);
- info->cdev.size = info->size;
- info->cdev.dev = dev;
- info->cdev.ops = &cfi_ops;
- info->cdev.priv = info;
- devfs_create(&info->cdev);
-
- return 0;
-}
-
-static struct driver_d cfi_driver = {
- .name = "cfi_flash",
- .probe = cfi_probe,
- .info = cfi_info,
-};
-
-static int cfi_init(void)
-{
- return register_driver(&cfi_driver);
-}
-
-device_initcall(cfi_init);
-
diff --git a/include/cfi_flash.h b/include/cfi_flash.h
index e461ef1..a888f16 100644
--- a/include/cfi_flash.h
+++ b/include/cfi_flash.h
@@ -25,6 +25,10 @@
*/
#include <driver.h>
+#include <asm/io.h>
+
+typedef unsigned long flash_sect_t;
+struct cfi_cmd_set;
/*-----------------------------------------------------------------------
* FLASH Info: contains chip specific data, per FLASH bank
@@ -32,7 +36,6 @@
typedef struct {
struct driver_d driver;
- struct cdev cdev;
ulong size; /* total bank size in bytes */
ushort sector_count; /* number of erase units */
ulong flash_id; /* combined device & manufacturer code */
@@ -55,8 +58,101 @@ typedef struct {
ushort ext_addr; /* extended query table address */
ushort cfi_version; /* cfi version */
ushort cfi_offset; /* offset for cfi query */
+ struct cfi_cmd_set *cfi_cmd_set;
+ struct cdev cdev;
} flash_info_t;
+struct cfi_cmd_set {
+ int (*flash_write_cfibuffer) (flash_info_t * info, ulong dest, const uchar * cp, int len);
+ int (*flash_erase_one) (flash_info_t * info, long sect);
+ int (*flash_is_busy) (flash_info_t * info, flash_sect_t sect);
+ void (*flash_read_jedec_ids) (flash_info_t * info);
+ void (*flash_prepare_write) (flash_info_t * info);
+ int (*flash_status_check) (flash_info_t * info, flash_sect_t sector, uint64_t tout, char *prompt);
+};
+
+extern struct cfi_cmd_set cfi_cmd_set_intel;
+extern struct cfi_cmd_set cfi_cmd_set_amd;
+
+#define FLASH_CMD_CFI 0x98
+#define FLASH_CMD_READ_ID 0x90
+#define FLASH_CMD_RESET 0xff
+#define FLASH_CMD_BLOCK_ERASE 0x20
+#define FLASH_CMD_ERASE_CONFIRM 0xD0
+#define FLASH_CMD_WRITE 0x40
+#define FLASH_CMD_PROTECT 0x60
+#define FLASH_CMD_PROTECT_SET 0x01
+#define FLASH_CMD_PROTECT_CLEAR 0xD0
+#define FLASH_CMD_CLEAR_STATUS 0x50
+#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
+#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
+
+#define FLASH_STATUS_DONE 0x80
+#define FLASH_STATUS_ESS 0x40
+#define FLASH_STATUS_ECLBS 0x20
+#define FLASH_STATUS_PSLBS 0x10
+#define FLASH_STATUS_VPENS 0x08
+#define FLASH_STATUS_PSS 0x04
+#define FLASH_STATUS_DPS 0x02
+#define FLASH_STATUS_R 0x01
+#define FLASH_STATUS_PROTECT 0x01
+
+#define AMD_CMD_RESET 0xF0
+#define AMD_CMD_WRITE 0xA0
+#define AMD_CMD_ERASE_START 0x80
+#define AMD_CMD_ERASE_SECTOR 0x30
+#define AMD_CMD_UNLOCK_START 0xAA
+#define AMD_CMD_UNLOCK_ACK 0x55
+#define AMD_CMD_WRITE_TO_BUFFER 0x25
+#define AMD_CMD_WRITE_BUFFER_CONFIRM 0x29
+
+#define AMD_STATUS_TOGGLE 0x40
+#define AMD_STATUS_ERROR 0x20
+
+#define AMD_ADDR_ERASE_START ((info->portwidth == FLASH_CFI_8BIT) ? 0xAAA : 0x555)
+#define AMD_ADDR_START ((info->portwidth == FLASH_CFI_8BIT) ? 0xAAA : 0x555)
+#define AMD_ADDR_ACK ((info->portwidth == FLASH_CFI_8BIT) ? 0x555 : 0x2AA)
+
+#define FLASH_OFFSET_MANUFACTURER_ID 0x00
+#define FLASH_OFFSET_DEVICE_ID 0x01
+#define FLASH_OFFSET_DEVICE_ID2 0x0E
+#define FLASH_OFFSET_DEVICE_ID3 0x0F
+#define FLASH_OFFSET_CFI 0x55
+#define FLASH_OFFSET_CFI_ALT 0x555
+#define FLASH_OFFSET_CFI_RESP 0x10
+#define FLASH_OFFSET_PRIMARY_VENDOR 0x13
+#define FLASH_OFFSET_EXT_QUERY_T_P_ADDR 0x15 /* extended query table primary addr */
+#define FLASH_OFFSET_WTOUT 0x1F
+#define FLASH_OFFSET_WBTOUT 0x20
+#define FLASH_OFFSET_ETOUT 0x21
+#define FLASH_OFFSET_CETOUT 0x22
+#define FLASH_OFFSET_WMAX_TOUT 0x23
+#define FLASH_OFFSET_WBMAX_TOUT 0x24
+#define FLASH_OFFSET_EMAX_TOUT 0x25
+#define FLASH_OFFSET_CEMAX_TOUT 0x26
+#define FLASH_OFFSET_SIZE 0x27
+#define FLASH_OFFSET_INTERFACE 0x28
+#define FLASH_OFFSET_BUFFER_SIZE 0x2A
+#define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C
+#define FLASH_OFFSET_ERASE_REGIONS 0x2D
+#define FLASH_OFFSET_PROTECT 0x02
+#define FLASH_OFFSET_USER_PROTECTION 0x85
+#define FLASH_OFFSET_INTEL_PROTECTION 0x81
+
+#define CFI_CMDSET_NONE 0
+#define CFI_CMDSET_INTEL_EXTENDED 1
+#define CFI_CMDSET_AMD_STANDARD 2
+#define CFI_CMDSET_INTEL_STANDARD 3
+#define CFI_CMDSET_AMD_EXTENDED 4
+#define CFI_CMDSET_MITSU_STANDARD 256
+#define CFI_CMDSET_MITSU_EXTENDED 257
+#define CFI_CMDSET_SST 258
+
+#ifdef CFG_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */
+# undef FLASH_CMD_RESET
+# define FLASH_CMD_RESET AMD_CMD_RESET /* use AMD-Reset instead */
+#endif
+
/*
* Values for the width of the port
*/
@@ -82,6 +178,112 @@ typedef struct {
/* convert between bit value and numeric value */
#define CFI_FLASH_SHIFT_WIDTH 3
+/* Prototypes */
+
+int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
+void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
+flash_sect_t find_sector (flash_info_t * info, ulong addr);
+int flash_status_check (flash_info_t * info, flash_sect_t sector,
+ uint64_t tout, char *prompt);
+int flash_generic_status_check (flash_info_t * info, flash_sect_t sector,
+ uint64_t tout, char *prompt);
+
+int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
+void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf);
+
+/*
+ * create an address based on the offset and the port width
+ */
+static inline uchar *flash_make_addr (flash_info_t * info, flash_sect_t sect, uint offset)
+{
+ return ((uchar *) (info->start[sect] + (offset * info->portwidth)));
+}
+
+/*
+ * read a character at a port width address
+ */
+static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
+{
+ uchar *cp;
+
+ cp = flash_make_addr (info, 0, offset);
+#if defined(__LITTLE_ENDIAN)
+ return (cp[0]);
+#else
+ return (cp[info->portwidth - 1]);
+#endif
+}
+
+#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_1
+#define bankwidth_is_1(info) (info->portwidth == 1)
+#else
+#define bankwidth_is_1(info) 0
+#endif
+
+#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_2
+#define bankwidth_is_2(info) (info->portwidth == 2)
+#else
+#define bankwidth_is_2(info) 0
+#endif
+
+#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_4
+#define bankwidth_is_4(info) (info->portwidth == 4)
+#else
+#define bankwidth_is_4(info) 0
+#endif
+
+#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_8
+#define bankwidth_is_8(info) (info->portwidth == 8)
+#else
+#define bankwidth_is_8(info) 0
+#endif
+
+typedef union {
+ unsigned char c;
+ unsigned short w;
+ unsigned long l;
+ unsigned long long ll;
+} cfiword_t;
+
+typedef union {
+ volatile unsigned char *cp;
+ volatile unsigned short *wp;
+ volatile unsigned long *lp;
+ volatile unsigned long long *llp;
+} cfiptr_t;
+
+static inline void flash_write_word(flash_info_t *info, cfiword_t datum, void *addr)
+{
+ if (bankwidth_is_1(info)) {
+ debug("fw addr %p val %02x\n", addr, datum.c);
+ writeb(datum.c, addr);
+ } else if (bankwidth_is_2(info)) {
+ debug("fw addr %p val %04x\n", addr, datum.w);
+ writew(datum.w, addr);
+ } else if (bankwidth_is_4(info)) {
+ debug("fw addr %p val %08x\n", addr, datum.l);
+ writel(datum.l, addr);
+ } else if (bankwidth_is_8(info)) {
+ memcpy((void *)addr, &datum.ll, 8);
+ }
+}
+
+extern void flash_print_info (flash_info_t *);
+extern int flash_sect_erase (ulong addr_first, ulong addr_last);
+extern int flash_sect_protect (int flag, ulong addr_first, ulong addr_last);
+
+/* common/flash.c */
+extern void flash_protect (int flag, ulong from, ulong to, flash_info_t *info);
+extern int flash_write (char *, ulong, ulong);
+extern flash_info_t *addr2info (ulong);
+//extern int write_buff (flash_info_t *info, const uchar *src, ulong addr, ulong cnt);
+
+/* board/?/flash.c */
+#if defined(CFG_FLASH_PROTECTION)
+extern int flash_real_protect(flash_info_t *info, long sector, int prot);
+extern void flash_read_user_serial(flash_info_t * info, void * buffer, int offset, int len);
+extern void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len);
+#endif /* CFG_FLASH_PROTECTION */
/*-----------------------------------------------------------------------
* return codes from flash_write():
diff --git a/include/cfi_flash_new.h b/include/cfi_flash_new.h
deleted file mode 100644
index 2ebe83b..0000000
--- a/include/cfi_flash_new.h
+++ /dev/null
@@ -1,660 +0,0 @@
-#ifndef __CFI_FLASH_H
-#define __CFI_FLASH_H
-
-/*
- * (C) Copyright 2000-2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <driver.h>
-#include <asm/io.h>
-
-typedef unsigned long flash_sect_t;
-struct cfi_cmd_set;
-
-/*-----------------------------------------------------------------------
- * FLASH Info: contains chip specific data, per FLASH bank
- */
-
-typedef struct {
- struct driver_d driver;
- ulong size; /* total bank size in bytes */
- ushort sector_count; /* number of erase units */
- ulong flash_id; /* combined device & manufacturer code */
- ulong *start; /* physical sector start addresses */
- uchar *protect; /* sector protection status */
-
- uchar portwidth; /* the width of the port */
- uchar chipwidth; /* the width of the chip */
- ushort buffer_size; /* # of bytes in write buffer */
- ulong erase_blk_tout; /* maximum block erase timeout */
- ulong write_tout; /* maximum write timeout */
- ulong buffer_write_tout; /* maximum buffer write timeout */
- ushort vendor; /* the primary vendor id */
- ushort cmd_reset; /* vendor specific reset command */
- ushort interface; /* used for x8/x16 adjustments */
- ushort legacy_unlock; /* support Intel legacy (un)locking */
- uchar manufacturer_id; /* manufacturer id */
- ushort device_id; /* device id */
- ushort device_id2; /* extended device id */
- ushort ext_addr; /* extended query table address */
- ushort cfi_version; /* cfi version */
- ushort cfi_offset; /* offset for cfi query */
- struct cfi_cmd_set *cfi_cmd_set;
- struct cdev cdev;
-} flash_info_t;
-
-struct cfi_cmd_set {
- int (*flash_write_cfibuffer) (flash_info_t * info, ulong dest, const uchar * cp, int len);
- int (*flash_erase_one) (flash_info_t * info, long sect);
- int (*flash_is_busy) (flash_info_t * info, flash_sect_t sect);
- void (*flash_read_jedec_ids) (flash_info_t * info);
- void (*flash_prepare_write) (flash_info_t * info);
- int (*flash_status_check) (flash_info_t * info, flash_sect_t sector, uint64_t tout, char *prompt);
-};
-
-extern struct cfi_cmd_set cfi_cmd_set_intel;
-extern struct cfi_cmd_set cfi_cmd_set_amd;
-
-#define FLASH_CMD_CFI 0x98
-#define FLASH_CMD_READ_ID 0x90
-#define FLASH_CMD_RESET 0xff
-#define FLASH_CMD_BLOCK_ERASE 0x20
-#define FLASH_CMD_ERASE_CONFIRM 0xD0
-#define FLASH_CMD_WRITE 0x40
-#define FLASH_CMD_PROTECT 0x60
-#define FLASH_CMD_PROTECT_SET 0x01
-#define FLASH_CMD_PROTECT_CLEAR 0xD0
-#define FLASH_CMD_CLEAR_STATUS 0x50
-#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
-#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
-
-#define FLASH_STATUS_DONE 0x80
-#define FLASH_STATUS_ESS 0x40
-#define FLASH_STATUS_ECLBS 0x20
-#define FLASH_STATUS_PSLBS 0x10
-#define FLASH_STATUS_VPENS 0x08
-#define FLASH_STATUS_PSS 0x04
-#define FLASH_STATUS_DPS 0x02
-#define FLASH_STATUS_R 0x01
-#define FLASH_STATUS_PROTECT 0x01
-
-#define AMD_CMD_RESET 0xF0
-#define AMD_CMD_WRITE 0xA0
-#define AMD_CMD_ERASE_START 0x80
-#define AMD_CMD_ERASE_SECTOR 0x30
-#define AMD_CMD_UNLOCK_START 0xAA
-#define AMD_CMD_UNLOCK_ACK 0x55
-#define AMD_CMD_WRITE_TO_BUFFER 0x25
-#define AMD_CMD_WRITE_BUFFER_CONFIRM 0x29
-
-#define AMD_STATUS_TOGGLE 0x40
-#define AMD_STATUS_ERROR 0x20
-
-#define AMD_ADDR_ERASE_START ((info->portwidth == FLASH_CFI_8BIT) ? 0xAAA : 0x555)
-#define AMD_ADDR_START ((info->portwidth == FLASH_CFI_8BIT) ? 0xAAA : 0x555)
-#define AMD_ADDR_ACK ((info->portwidth == FLASH_CFI_8BIT) ? 0x555 : 0x2AA)
-
-#define FLASH_OFFSET_MANUFACTURER_ID 0x00
-#define FLASH_OFFSET_DEVICE_ID 0x01
-#define FLASH_OFFSET_DEVICE_ID2 0x0E
-#define FLASH_OFFSET_DEVICE_ID3 0x0F
-#define FLASH_OFFSET_CFI 0x55
-#define FLASH_OFFSET_CFI_ALT 0x555
-#define FLASH_OFFSET_CFI_RESP 0x10
-#define FLASH_OFFSET_PRIMARY_VENDOR 0x13
-#define FLASH_OFFSET_EXT_QUERY_T_P_ADDR 0x15 /* extended query table primary addr */
-#define FLASH_OFFSET_WTOUT 0x1F
-#define FLASH_OFFSET_WBTOUT 0x20
-#define FLASH_OFFSET_ETOUT 0x21
-#define FLASH_OFFSET_CETOUT 0x22
-#define FLASH_OFFSET_WMAX_TOUT 0x23
-#define FLASH_OFFSET_WBMAX_TOUT 0x24
-#define FLASH_OFFSET_EMAX_TOUT 0x25
-#define FLASH_OFFSET_CEMAX_TOUT 0x26
-#define FLASH_OFFSET_SIZE 0x27
-#define FLASH_OFFSET_INTERFACE 0x28
-#define FLASH_OFFSET_BUFFER_SIZE 0x2A
-#define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C
-#define FLASH_OFFSET_ERASE_REGIONS 0x2D
-#define FLASH_OFFSET_PROTECT 0x02
-#define FLASH_OFFSET_USER_PROTECTION 0x85
-#define FLASH_OFFSET_INTEL_PROTECTION 0x81
-
-#define CFI_CMDSET_NONE 0
-#define CFI_CMDSET_INTEL_EXTENDED 1
-#define CFI_CMDSET_AMD_STANDARD 2
-#define CFI_CMDSET_INTEL_STANDARD 3
-#define CFI_CMDSET_AMD_EXTENDED 4
-#define CFI_CMDSET_MITSU_STANDARD 256
-#define CFI_CMDSET_MITSU_EXTENDED 257
-#define CFI_CMDSET_SST 258
-
-#ifdef CFG_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */
-# undef FLASH_CMD_RESET
-# define FLASH_CMD_RESET AMD_CMD_RESET /* use AMD-Reset instead */
-#endif
-
-/*
- * Values for the width of the port
- */
-#define FLASH_CFI_8BIT 0x01
-#define FLASH_CFI_16BIT 0x02
-#define FLASH_CFI_32BIT 0x04
-#define FLASH_CFI_64BIT 0x08
-/*
- * Values for the width of the chip
- */
-#define FLASH_CFI_BY8 0x01
-#define FLASH_CFI_BY16 0x02
-#define FLASH_CFI_BY32 0x04
-#define FLASH_CFI_BY64 0x08
-/* convert between bit value and numeric value */
-#define CFI_FLASH_SHIFT_WIDTH 3
-/*
- * Values for the flash device interface
- */
-#define FLASH_CFI_X8 0x00
-#define FLASH_CFI_X16 0x01
-#define FLASH_CFI_X8X16 0x02
-
-/* convert between bit value and numeric value */
-#define CFI_FLASH_SHIFT_WIDTH 3
-/* Prototypes */
-
-int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-flash_sect_t find_sector (flash_info_t * info, ulong addr);
-int flash_status_check (flash_info_t * info, flash_sect_t sector,
- uint64_t tout, char *prompt);
-int flash_generic_status_check (flash_info_t * info, flash_sect_t sector,
- uint64_t tout, char *prompt);
-
-int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf);
-
-/*
- * create an address based on the offset and the port width
- */
-static inline uchar *flash_make_addr (flash_info_t * info, flash_sect_t sect, uint offset)
-{
- return ((uchar *) (info->start[sect] + (offset * info->portwidth)));
-}
-
-/*
- * read a character at a port width address
- */
-static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
-{
- uchar *cp;
-
- cp = flash_make_addr (info, 0, offset);
-#if defined(__LITTLE_ENDIAN)
- return (cp[0]);
-#else
- return (cp[info->portwidth - 1]);
-#endif
-}
-
-#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_1
-#define bankwidth_is_1(info) (info->portwidth == 1)
-#else
-#define bankwidth_is_1(info) 0
-#endif
-
-#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_2
-#define bankwidth_is_2(info) (info->portwidth == 2)
-#else
-#define bankwidth_is_2(info) 0
-#endif
-
-#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_4
-#define bankwidth_is_4(info) (info->portwidth == 4)
-#else
-#define bankwidth_is_4(info) 0
-#endif
-
-#ifdef CONFIG_DRIVER_CFI_BANK_WIDTH_8
-#define bankwidth_is_8(info) (info->portwidth == 8)
-#else
-#define bankwidth_is_8(info) 0
-#endif
-
-typedef union {
- unsigned char c;
- unsigned short w;
- unsigned long l;
- unsigned long long ll;
-} cfiword_t;
-
-typedef union {
- volatile unsigned char *cp;
- volatile unsigned short *wp;
- volatile unsigned long *lp;
- volatile unsigned long long *llp;
-} cfiptr_t;
-
-static inline void flash_write_word(flash_info_t *info, cfiword_t datum, void *addr)
-{
- if (bankwidth_is_1(info)) {
- debug("fw addr %p val %02x\n", addr, datum.c);
- writeb(datum.c, addr);
- } else if (bankwidth_is_2(info)) {
- debug("fw addr %p val %04x\n", addr, datum.w);
- writew(datum.w, addr);
- } else if (bankwidth_is_4(info)) {
- debug("fw addr %p val %08x\n", addr, datum.l);
- writel(datum.l, addr);
- } else if (bankwidth_is_8(info)) {
- memcpy((void *)addr, &datum.ll, 8);
- }
-}
-
-extern void flash_print_info (flash_info_t *);
-extern int flash_sect_erase (ulong addr_first, ulong addr_last);
-extern int flash_sect_protect (int flag, ulong addr_first, ulong addr_last);
-
-/* common/flash.c */
-extern void flash_protect (int flag, ulong from, ulong to, flash_info_t *info);
-extern int flash_write (char *, ulong, ulong);
-extern flash_info_t *addr2info (ulong);
-//extern int write_buff (flash_info_t *info, const uchar *src, ulong addr, ulong cnt);
-
-/* board/?/flash.c */
-#if defined(CFG_FLASH_PROTECTION)
-extern int flash_real_protect(flash_info_t *info, long sector, int prot);
-extern void flash_read_user_serial(flash_info_t * info, void * buffer, int offset, int len);
-extern void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len);
-#endif /* CFG_FLASH_PROTECTION */
-
-/*-----------------------------------------------------------------------
- * return codes from flash_write():
- */
-#define ERR_OK 0
-#define ERR_TIMOUT 1
-#define ERR_NOT_ERASED 2
-#define ERR_PROTECTED 4
-#define ERR_INVAL 8
-#define ERR_ALIGN 16
-#define ERR_UNKNOWN_FLASH_VENDOR 32
-#define ERR_UNKNOWN_FLASH_TYPE 64
-#define ERR_PROG_ERROR 128
-
-/*-----------------------------------------------------------------------
- * Protection Flags for flash_protect():
- */
-#define FLAG_PROTECT_SET 0x01
-#define FLAG_PROTECT_CLEAR 0x02
-
-/*-----------------------------------------------------------------------
- * Device IDs
- */
-
-#define AMD_MANUFACT 0x00010001 /* AMD manuf. ID in D23..D16, D7..D0 */
-#define FUJ_MANUFACT 0x00040004 /* FUJITSU manuf. ID in D23..D16, D7..D0 */
-#define ATM_MANUFACT 0x001F001F /* ATMEL */
-#define STM_MANUFACT 0x00200020 /* STM (Thomson) manuf. ID in D23.. -"- */
-#define SST_MANUFACT 0x00BF00BF /* SST manuf. ID in D23..D16, D7..D0 */
-#define MT_MANUFACT 0x00890089 /* MT manuf. ID in D23..D16, D7..D0 */
-#define INTEL_MANUFACT 0x00890089 /* INTEL manuf. ID in D23..D16, D7..D0 */
-#define INTEL_ALT_MANU 0x00B000B0 /* alternate INTEL namufacturer ID */
-#define MX_MANUFACT 0x00C200C2 /* MXIC manuf. ID in D23..D16, D7..D0 */
-#define TOSH_MANUFACT 0x00980098 /* TOSHIBA manuf. ID in D23..D16, D7..D0 */
-#define MT2_MANUFACT 0x002C002C /* alternate MICRON manufacturer ID*/
-#define EXCEL_MANUFACT 0x004A004A /* Excel Semiconductor */
-
- /* Micron Technologies (INTEL compat.) */
-#define MT_ID_28F400_T 0x44704470 /* 28F400B3 ID ( 4 M, top boot sector) */
-#define MT_ID_28F400_B 0x44714471 /* 28F400B3 ID ( 4 M, bottom boot sect) */
-
-#define AMD_ID_LV040B 0x4F /* 29LV040B ID */
- /* 4 Mbit, 512K x 8, */
- /* 8 64K x 8 uniform sectors */
-#define AMD_ID_F033C 0xA3 /* 29LV033C ID */
- /* 32 Mbit, 4Mbits x 8, */
- /* 64 64K x 8 uniform sectors */
-#define AMD_ID_F065D 0x93 /* 29LV065D ID */
- /* 64 Mbit, 8Mbits x 8, */
- /* 126 64K x 8 uniform sectors */
-#define ATM_ID_LV040 0x13 /* 29LV040B ID */
- /* 4 Mbit, 512K x 8, */
- /* 8 64K x 8 uniform sectors */
-#define AMD_ID_F040B 0xA4 /* 29F040B ID */
- /* 4 Mbit, 512K x 8, */
- /* 8 64K x 8 uniform sectors */
-#define STM_ID_M29W040B 0xE3 /* M29W040B ID */
- /* 4 Mbit, 512K x 8, */
- /* 8 64K x 8 uniform sectors */
-#define AMD_ID_F080B 0xD5 /* 29F080 ID ( 1 M) */
- /* 8 Mbit, 512K x 16, */
- /* 8 64K x 16 uniform sectors */
-#define AMD_ID_F016D 0xAD /* 29F016 ID ( 2 M x 8) */
-#define AMD_ID_F032B 0x41 /* 29F032 ID ( 4 M x 8) */
-#define AMD_ID_LV116DT 0xC7 /* 29LV116DT ( 2 M x 8, top boot sect) */
-#define AMD_ID_LV116DB 0x4C /* 29LV116DB ( 2 M x 8, bottom boot sect) */
-#define AMD_ID_LV016B 0xc8 /* 29LV016 ID ( 2 M x 8) */
-
-#define AMD_ID_PL160CB 0x22452245 /* 29PL160CB ID (16 M, bottom boot sect */
-
-#define AMD_ID_LV400T 0x22B922B9 /* 29LV400T ID ( 4 M, top boot sector) */
-#define AMD_ID_LV400B 0x22BA22BA /* 29LV400B ID ( 4 M, bottom boot sect) */
-
-#define AMD_ID_LV033C 0xA3 /* 29LV033C ID ( 4 M x 8) */
-#define AMD_ID_LV065D 0x93 /* 29LV065D ID ( 8 M x 8) */
-
-#define AMD_ID_LV800T 0x22DA22DA /* 29LV800T ID ( 8 M, top boot sector) */
-#define AMD_ID_LV800B 0x225B225B /* 29LV800B ID ( 8 M, bottom boot sect) */
-
-#define AMD_ID_LV160T 0x22C422C4 /* 29LV160T ID (16 M, top boot sector) */
-#define AMD_ID_LV160B 0x22492249 /* 29LV160B ID (16 M, bottom boot sect) */
-
-#define AMD_ID_DL163T 0x22282228 /* 29DL163T ID (16 M, top boot sector) */
-#define AMD_ID_DL163B 0x222B222B /* 29DL163B ID (16 M, bottom boot sect) */
-
-#define AMD_ID_LV320T 0x22F622F6 /* 29LV320T ID (32 M, top boot sector) */
-#define MX_ID_LV320T 0x22A722A7 /* 29LV320T by Macronix, AMD compatible */
-#define AMD_ID_LV320B 0x22F922F9 /* 29LV320B ID (32 M, bottom boot sect) */
-#define MX_ID_LV320B 0x22A822A8 /* 29LV320B by Macronix, AMD compatible */
-
-#define AMD_ID_DL322T 0x22552255 /* 29DL322T ID (32 M, top boot sector) */
-#define AMD_ID_DL322B 0x22562256 /* 29DL322B ID (32 M, bottom boot sect) */
-#define AMD_ID_DL323T 0x22502250 /* 29DL323T ID (32 M, top boot sector) */
-#define AMD_ID_DL323B 0x22532253 /* 29DL323B ID (32 M, bottom boot sect) */
-#define AMD_ID_DL324T 0x225C225C /* 29DL324T ID (32 M, top boot sector) */
-#define AMD_ID_DL324B 0x225F225F /* 29DL324B ID (32 M, bottom boot sect) */
-
-#define AMD_ID_DL640 0x227E227E /* 29DL640D ID (64 M, dual boot sectors)*/
-#define AMD_ID_MIRROR 0x227E227E /* 1st ID word for MirrorBit family */
-#define AMD_ID_DL640G_2 0x22022202 /* 2nd ID word for AM29DL640G at 0x38 */
-#define AMD_ID_DL640G_3 0x22012201 /* 3rd ID word for AM29DL640G at 0x3c */
-#define AMD_ID_LV640U_2 0x220C220C /* 2nd ID word for AM29LV640M at 0x38 */
-#define AMD_ID_LV640U_3 0x22012201 /* 3rd ID word for AM29LV640M at 0x3c */
-#define AMD_ID_LV640MT_2 0x22102210 /* 2nd ID word for AM29LV640MT at 0x38 */
-#define AMD_ID_LV640MT_3 0x22012201 /* 3rd ID word for AM29LV640MT at 0x3c */
-#define AMD_ID_LV640MB_2 0x22102210 /* 2nd ID word for AM29LV640MB at 0x38 */
-#define AMD_ID_LV640MB_3 0x22002200 /* 3rd ID word for AM29LV640MB at 0x3c */
-#define AMD_ID_LV128U_2 0x22122212 /* 2nd ID word for AM29LV128M at 0x38 */
-#define AMD_ID_LV128U_3 0x22002200 /* 3rd ID word for AM29LV128M at 0x3c */
-#define AMD_ID_LV256U_2 0x22122212 /* 2nd ID word for AM29LV256M at 0x38 */
-#define AMD_ID_LV256U_3 0x22012201 /* 3rd ID word for AM29LV256M at 0x3c */
-#define AMD_ID_GL064M_2 0x22132213 /* 2nd ID word for S29GL064M-R6 */
-#define AMD_ID_GL064M_3 0x22012201 /* 3rd ID word for S29GL064M-R6 */
-#define AMD_ID_GL064MT_2 0x22102210 /* 2nd ID word for S29GL064M-R3 (top boot sector) */
-#define AMD_ID_GL064MT_3 0x22012201 /* 3rd ID word for S29GL064M-R3 (top boot sector) */
-#define AMD_ID_GL128N_2 0x22212221 /* 2nd ID word for S29GL128N */
-#define AMD_ID_GL128N_3 0x22012201 /* 3rd ID word for S29GL128N */
-
-
-#define AMD_ID_LV320B_2 0x221A221A /* 2d ID word for AM29LV320MB at 0x38 */
-#define AMD_ID_LV320B_3 0x22002200 /* 3d ID word for AM29LV320MB at 0x3c */
-
-#define AMD_ID_LV640U 0x22D722D7 /* 29LV640U ID (64 M, uniform sectors) */
-#define AMD_ID_LV650U 0x22D722D7 /* 29LV650U ID (64 M, uniform sectors) */
-
-#define ATM_ID_BV1614 0x000000C0 /* 49BV1614 ID */
-#define ATM_ID_BV1614A 0x000000C8 /* 49BV1614A ID */
-#define ATM_ID_BV6416 0x000000D6 /* 49BV6416 ID */
-
-#define FUJI_ID_29F800BA 0x22582258 /* MBM29F800BA ID (8M) */
-#define FUJI_ID_29F800TA 0x22D622D6 /* MBM29F800TA ID (8M) */
-#define FUJI_ID_29LV650UE 0x22d722d7 /* MBM29LV650UE/651UE ID (8M = 128 x 32kWord) */
-
-#define SST_ID_xF200A 0x27892789 /* 39xF200A ID ( 2M = 128K x 16 ) */
-#define SST_ID_xF400A 0x27802780 /* 39xF400A ID ( 4M = 256K x 16 ) */
-#define SST_ID_xF800A 0x27812781 /* 39xF800A ID ( 8M = 512K x 16 ) */
-#define SST_ID_xF160A 0x27822782 /* 39xF800A ID (16M = 1M x 16 ) */
-#define SST_ID_xF1601 0x234B234B /* 39xF1601 ID (16M = 1M x 16 ) */
-#define SST_ID_xF1602 0x234A234A /* 39xF1602 ID (16M = 1M x 16 ) */
-#define SST_ID_xF3201 0x235B235B /* 39xF3201 ID (32M = 2M x 16 ) */
-#define SST_ID_xF3202 0x235A235A /* 39xF3202 ID (32M = 2M x 16 ) */
-#define SST_ID_xF6401 0x236B236B /* 39xF6401 ID (64M = 4M x 16 ) */
-#define SST_ID_xF6402 0x236A236A /* 39xF6402 ID (64M = 4M x 16 ) */
-#define SST_ID_xF020 0xBFD6BFD6 /* 39xF020 ID (256KB = 2Mbit x 8) */
-#define SST_ID_xF040 0xBFD7BFD7 /* 39xF040 ID (512KB = 4Mbit x 8) */
-
-#define STM_ID_F040B 0xE2 /* M29F040B ID ( 4M = 512K x 8 ) */
- /* 8 64K x 8 uniform sectors */
-
-#define STM_ID_x800AB 0x005B005B /* M29W800AB ID (8M = 512K x 16 ) */
-#define STM_ID_29W320DT 0x22CA22CA /* M29W320DT ID (32 M, top boot sector) */
-#define STM_ID_29W320DB 0x22CB22CB /* M29W320DB ID (32 M, bottom boot sect) */
-#define STM_ID_29W040B 0x00E300E3 /* M29W040B ID (4M = 512K x 8) */
-#define FLASH_PSD4256GV 0x00E9 /* PSD4256 Flash and CPLD combination */
-
-#define INTEL_ID_28F016S 0x66a066a0 /* 28F016S[VS] ID (16M = 512k x 16) */
-#define INTEL_ID_28F800B3T 0x88928892 /* 8M = 512K x 16 top boot sector */
-#define INTEL_ID_28F800B3B 0x88938893 /* 8M = 512K x 16 bottom boot sector */
-#define INTEL_ID_28F160B3T 0x88908890 /* 16M = 1M x 16 top boot sector */
-#define INTEL_ID_28F160B3B 0x88918891 /* 16M = 1M x 16 bottom boot sector */
-#define INTEL_ID_28F320B3T 0x88968896 /* 32M = 2M x 16 top boot sector */
-#define INTEL_ID_28F320B3B 0x88978897 /* 32M = 2M x 16 bottom boot sector */
-#define INTEL_ID_28F640B3T 0x88988898 /* 64M = 4M x 16 top boot sector */
-#define INTEL_ID_28F640B3B 0x88998899 /* 64M = 4M x 16 bottom boot sector */
-#define INTEL_ID_28F160F3B 0x88F488F4 /* 16M = 1M x 16 bottom boot sector */
-
-#define INTEL_ID_28F800C3T 0x88C088C0 /* 8M = 512K x 16 top boot sector */
-#define INTEL_ID_28F800C3B 0x88C188C1 /* 8M = 512K x 16 bottom boot sector */
-#define INTEL_ID_28F160C3T 0x88C288C2 /* 16M = 1M x 16 top boot sector */
-#define INTEL_ID_28F160C3B 0x88C388C3 /* 16M = 1M x 16 bottom boot sector */
-#define INTEL_ID_28F320C3T 0x88C488C4 /* 32M = 2M x 16 top boot sector */
-#define INTEL_ID_28F320C3B 0x88C588C5 /* 32M = 2M x 16 bottom boot sector */
-#define INTEL_ID_28F640C3T 0x88CC88CC /* 64M = 4M x 16 top boot sector */
-#define INTEL_ID_28F640C3B 0x88CD88CD /* 64M = 4M x 16 bottom boot sector */
-
-#define INTEL_ID_28F128J3 0x89188918 /* 16M = 8M x 16 x 128 */
-#define INTEL_ID_28F320J5 0x00140014 /* 32M = 128K x 32 */
-#define INTEL_ID_28F640J5 0x00150015 /* 64M = 128K x 64 */
-#define INTEL_ID_28F320J3A 0x00160016 /* 32M = 128K x 32 */
-#define INTEL_ID_28F640J3A 0x00170017 /* 64M = 128K x 64 */
-#define INTEL_ID_28F128J3A 0x00180018 /* 128M = 128K x 128 */
-#define INTEL_ID_28F256J3A 0x001D001D /* 256M = 128K x 256 */
-#define INTEL_ID_28F256L18T 0x880D880D /* 256M = 128K x 255 + 32k x 4 */
-#define INTEL_ID_28F64K3 0x88018801 /* 64M = 32K x 255 + 32k x 4 */
-#define INTEL_ID_28F128K3 0x88028802 /* 128M = 64K x 255 + 32k x 4 */
-#define INTEL_ID_28F256K3 0x88038803 /* 256M = 128K x 255 + 32k x 4 */
-#define INTEL_ID_28F64P30T 0x88178817 /* 64M = 32K x 255 + 32k x 4 */
-#define INTEL_ID_28F64P30B 0x881A881A /* 64M = 32K x 255 + 32k x 4 */
-#define INTEL_ID_28F128P30T 0x88188818 /* 128M = 64K x 255 + 32k x 4 */
-#define INTEL_ID_28F128P30B 0x881B881B /* 128M = 64K x 255 + 32k x 4 */
-#define INTEL_ID_28F256P30T 0x88198819 /* 256M = 128K x 255 + 32k x 4 */
-#define INTEL_ID_28F256P30B 0x881C881C /* 256M = 128K x 255 + 32k x 4 */
-
-#define INTEL_ID_28F160S3 0x00D000D0 /* 16M = 512K x 32 (64kB x 32) */
-#define INTEL_ID_28F320S3 0x00D400D4 /* 32M = 512K x 64 (64kB x 64) */
-
-/* Note that the Sharp 28F016SC is compatible with the Intel E28F016SC */
-#define SHARP_ID_28F016SCL 0xAAAAAAAA /* LH28F016SCT-L95 2Mx8, 32 64k blocks */
-#define SHARP_ID_28F016SCZ 0xA0A0A0A0 /* LH28F016SCT-Z4 2Mx8, 32 64k blocks */
-#define SHARP_ID_28F008SC 0xA6A6A6A6 /* LH28F008SCT-L12 1Mx8, 16 64k blocks */
- /* LH28F008SCR-L85 1Mx8, 16 64k blocks */
-
-#define TOSH_ID_FVT160 0xC2 /* TC58FVT160 ID (16 M, top ) */
-#define TOSH_ID_FVB160 0x43 /* TC58FVT160 ID (16 M, bottom ) */
-
-/*-----------------------------------------------------------------------
- * Internal FLASH identification codes
- *
- * Be careful when adding new type! Odd numbers are "bottom boot sector" types!
- */
-
-#define FLASH_AM040 0x0001 /* AMD Am29F040B, Am29LV040B */
- /* Bright Micro BM29F040 */
- /* Fujitsu MBM29F040A */
- /* STM M29W040B */
- /* SGS Thomson M29F040B */
- /* 8 64K x 8 uniform sectors */
-#define FLASH_AM400T 0x0002 /* AMD AM29LV400 */
-#define FLASH_AM400B 0x0003
-#define FLASH_AM800T 0x0004 /* AMD AM29LV800 */
-#define FLASH_AM800B 0x0005
-#define FLASH_AM116DT 0x0026 /* AMD AM29LV116DT (2Mx8bit) */
-#define FLASH_AM116DB 0x0027 /* AMD AM29LV116DB (2Mx8bit) */
-#define FLASH_AM160T 0x0006 /* AMD AM29LV160 */
-#define FLASH_AM160LV 0x0046 /* AMD29LV160DB (2M = 2Mx8bit ) */
-#define FLASH_AM160B 0x0007
-#define FLASH_AM320T 0x0008 /* AMD AM29LV320 */
-#define FLASH_AM320B 0x0009
-
-#define FLASH_AM080 0x000A /* AMD Am29F080B */
- /* 16 64K x 8 uniform sectors */
-
-#define FLASH_AMDL322T 0x0010 /* AMD AM29DL322 */
-#define FLASH_AMDL322B 0x0011
-#define FLASH_AMDL323T 0x0012 /* AMD AM29DL323 */
-#define FLASH_AMDL323B 0x0013
-#define FLASH_AMDL324T 0x0014 /* AMD AM29DL324 */
-#define FLASH_AMDL324B 0x0015
-
-#define FLASH_AMDLV033C 0x0018
-#define FLASH_AMDLV065D 0x001A
-
-#define FLASH_AMDL640 0x0016 /* AMD AM29DL640D */
-#define FLASH_AMD016 0x0018 /* AMD AM29F016D */
-#define FLASH_AMDL640MB 0x0019 /* AMD AM29LV640MB (64M, bottom boot sect)*/
-#define FLASH_AMDL640MT 0x001A /* AMD AM29LV640MT (64M, top boot sect) */
-
-#define FLASH_SST200A 0x0040 /* SST 39xF200A ID ( 2M = 128K x 16 ) */
-#define FLASH_SST400A 0x0042 /* SST 39xF400A ID ( 4M = 256K x 16 ) */
-#define FLASH_SST800A 0x0044 /* SST 39xF800A ID ( 8M = 512K x 16 ) */
-#define FLASH_SST160A 0x0046 /* SST 39xF160A ID ( 16M = 1M x 16 ) */
-#define FLASH_SST320 0x0048 /* SST 39xF160A ID ( 16M = 1M x 16 ) */
-#define FLASH_SST640 0x004A /* SST 39xF160A ID ( 16M = 1M x 16 ) */
-#define FLASH_SST020 0x0024 /* SST 39xF020 ID (256KB = 2Mbit x 8 ) */
-#define FLASH_SST040 0x000E /* SST 39xF040 ID (512KB = 4Mbit x 8 ) */
-
-#define FLASH_STM800AB 0x0051 /* STM M29WF800AB ( 8M = 512K x 16 ) */
-#define FLASH_STMW320DT 0x0052 /* STM M29W320DT (32 M, top boot sector) */
-#define FLASH_STMW320DB 0x0053 /* STM M29W320DB (32 M, bottom boot sect)*/
-#define FLASH_STM320DB 0x00CB /* STM M29W320DB (4M = 64K x 64, bottom)*/
-#define FLASH_STM800DT 0x00D7 /* STM M29W800DT (1M = 64K x 16, top) */
-#define FLASH_STM800DB 0x005B /* STM M29W800DB (1M = 64K x 16, bottom)*/
-
-#define FLASH_28F400_T 0x0062 /* MT 28F400B3 ID ( 4M = 256K x 16 ) */
-#define FLASH_28F400_B 0x0063 /* MT 28F400B3 ID ( 4M = 256K x 16 ) */
-
-#define FLASH_INTEL800T 0x0074 /* INTEL 28F800B3T ( 8M = 512K x 16 ) */
-#define FLASH_INTEL800B 0x0075 /* INTEL 28F800B3B ( 8M = 512K x 16 ) */
-#define FLASH_INTEL160T 0x0076 /* INTEL 28F160B3T ( 16M = 1 M x 16 ) */
-#define FLASH_INTEL160B 0x0077 /* INTEL 28F160B3B ( 16M = 1 M x 16 ) */
-#define FLASH_INTEL320T 0x0078 /* INTEL 28F320B3T ( 32M = 2 M x 16 ) */
-#define FLASH_INTEL320B 0x0079 /* INTEL 28F320B3B ( 32M = 2 M x 16 ) */
-#define FLASH_INTEL640T 0x007A /* INTEL 28F320B3T ( 64M = 4 M x 16 ) */
-#define FLASH_INTEL640B 0x007B /* INTEL 28F320B3B ( 64M = 4 M x 16 ) */
-
-#define FLASH_28F008S5 0x0080 /* Intel 28F008S5 ( 1M = 64K x 16 ) */
-#define FLASH_28F016SV 0x0081 /* Intel 28F016SV ( 16M = 512k x 32 ) */
-#define FLASH_28F800_B 0x0083 /* Intel E28F800B ( 1M = ? ) */
-#define FLASH_AM29F800B 0x0084 /* AMD Am29F800BB ( 1M = ? ) */
-#define FLASH_28F320J5 0x0085 /* Intel 28F320J5 ( 4M = 128K x 32 ) */
-#define FLASH_28F160S3 0x0086 /* Intel 28F160S3 ( 16M = 512K x 32 ) */
-#define FLASH_28F320S3 0x0088 /* Intel 28F320S3 ( 32M = 512K x 64 ) */
-#define FLASH_AM640U 0x0090 /* AMD Am29LV640U ( 64M = 4M x 16 ) */
-#define FLASH_AM033C 0x0091 /* AMD AM29LV033 ( 32M = 4M x 8 ) */
-#define FLASH_LH28F016SCT 0x0092 /* Sharp 28F016SCT ( 8 Meg Flash SIMM ) */
-#define FLASH_28F160F3B 0x0093 /* Intel 28F160F3B ( 16M = 1M x 16 ) */
-#define FLASH_AM065D 0x0093
-
-#define FLASH_28F640J5 0x0099 /* INTEL 28F640J5 ( 64M = 128K x 64) */
-
-#define FLASH_28F800C3T 0x009A /* Intel 28F800C3T ( 8M = 512K x 16 ) */
-#define FLASH_28F800C3B 0x009B /* Intel 28F800C3B ( 8M = 512K x 16 ) */
-#define FLASH_28F160C3T 0x009C /* Intel 28F160C3T ( 16M = 1M x 16 ) */
-#define FLASH_28F160C3B 0x009D /* Intel 28F160C3B ( 16M = 1M x 16 ) */
-#define FLASH_28F320C3T 0x009E /* Intel 28F320C3T ( 32M = 2M x 16 ) */
-#define FLASH_28F320C3B 0x009F /* Intel 28F320C3B ( 32M = 2M x 16 ) */
-#define FLASH_28F640C3T 0x00A0 /* Intel 28F640C3T ( 64M = 4M x 16 ) */
-#define FLASH_28F640C3B 0x00A1 /* Intel 28F640C3B ( 64M = 4M x 16 ) */
-#define FLASH_AMLV320U 0x00A2 /* AMD 29LV320M ( 32M = 2M x 16 ) */
-
-#define FLASH_AM033 0x00A3 /* AMD AmL033C90V1 (32M = 4M x 8) */
-#define FLASH_AM065 0x0093 /* AMD AmL065DU12RI (64M = 8M x 8) */
-#define FLASH_AT040 0x00A5 /* Amtel AT49LV040 (4M = 512K x 8) */
-
-#define FLASH_AMLV640U 0x00A4 /* AMD 29LV640M ( 64M = 4M x 16 ) */
-#define FLASH_AMLV128U 0x00A6 /* AMD 29LV128M ( 128M = 8M x 16 ) */
-#define FLASH_AMLV320B 0x00A7 /* AMD 29LV320MB ( 32M = 2M x 16 ) */
-#define FLASH_AMLV320T 0x00A8 /* AMD 29LV320MT ( 32M = 2M x 16 ) */
-#define FLASH_AMLV256U 0x00AA /* AMD 29LV256M ( 256M = 16M x 16 ) */
-#define FLASH_MXLV320B 0x00AB /* MX 29LV320MB ( 32M = 2M x 16 ) */
-#define FLASH_MXLV320T 0x00AC /* MX 29LV320MT ( 32M = 2M x 16 ) */
-#define FLASH_28F256L18T 0x00B0 /* Intel 28F256L18T 256M = 128K x 255 + 32k x 4 */
-#define FLASH_AMDL163T 0x00B2 /* AMD AM29DL163T (2M x 16 ) */
-#define FLASH_AMDL163B 0x00B3
-#define FLASH_28F64K3 0x00B4 /* Intel 28F64K3 ( 64M) */
-#define FLASH_28F128K3 0x00B6 /* Intel 28F128K3 ( 128M = 8M x 16 ) */
-#define FLASH_28F256K3 0x00B8 /* Intel 28F256K3 ( 256M = 16M x 16 ) */
-
-#define FLASH_28F320J3A 0x00C0 /* INTEL 28F320J3A ( 32M = 128K x 32) */
-#define FLASH_28F640J3A 0x00C2 /* INTEL 28F640J3A ( 64M = 128K x 64) */
-#define FLASH_28F128J3A 0x00C4 /* INTEL 28F128J3A (128M = 128K x 128) */
-#define FLASH_28F256J3A 0x00C6 /* INTEL 28F256J3A (256M = 128K x 256) */
-
-#define FLASH_FUJLV650 0x00D0 /* Fujitsu MBM 29LV650UE/651UE */
-#define FLASH_MT28S4M16LC 0x00E1 /* Micron MT28S4M16LC */
-#define FLASH_S29GL064M 0x00F0 /* Spansion S29GL064M-R6 */
-#define FLASH_S29GL128N 0x00F1 /* Spansion S29GL128N */
-
-#define FLASH_UNKNOWN 0xFFFF /* unknown flash type */
-
-
-/* manufacturer offsets
- */
-#define FLASH_MAN_AMD 0x00000000 /* AMD */
-#define FLASH_MAN_FUJ 0x00010000 /* Fujitsu */
-#define FLASH_MAN_BM 0x00020000 /* Bright Microelectronics */
-#define FLASH_MAN_MX 0x00030000 /* MXIC */
-#define FLASH_MAN_STM 0x00040000
-#define FLASH_MAN_TOSH 0x00050000 /* Toshiba */
-#define FLASH_MAN_EXCEL 0x00060000 /* Excel Semiconductor */
-#define FLASH_MAN_SST 0x00100000
-#define FLASH_MAN_INTEL 0x00300000
-#define FLASH_MAN_MT 0x00400000
-#define FLASH_MAN_SHARP 0x00500000
-#define FLASH_MAN_ATM 0x00600000
-#define FLASH_MAN_CFI 0x01000000
-
-
-#define FLASH_TYPEMASK 0x0000FFFF /* extract FLASH type information */
-#define FLASH_VENDMASK 0xFFFF0000 /* extract FLASH vendor information */
-
-#define FLASH_AMD_COMP 0x000FFFFF /* Up to this ID, FLASH is compatible */
- /* with AMD, Fujitsu and SST */
- /* (JEDEC standard commands ?) */
-
-#define FLASH_BTYPE 0x0001 /* mask for bottom boot sector type */
-
-/*-----------------------------------------------------------------------
- * Timeout constants:
- *
- * We can't find any specifications for maximum chip erase times,
- * so these values are guestimates.
- */
-#define FLASH_ERASE_TIMEOUT 120000 /* timeout for erasing in ms */
-#define FLASH_WRITE_TIMEOUT 500 /* timeout for writes in ms */
-
-struct cfi_platform_data {
- flash_info_t finfo;
-};
-
-int flash_init (void);
-
-#endif /* __CFI_FLASH_H */
-
--
1.6.6
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next prev parent reply other threads:[~2010-02-08 13:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-08 13:47 Clean up flash driver confusion Sascha Hauer
2010-02-08 13:47 ` [PATCH 1/6] cfi_flash_new: Fix Intel chips Sascha Hauer
2010-02-08 13:47 ` [PATCH 2/6] cfi_flash_new: Safe indention level by bailing out earlier in error case Sascha Hauer
2010-02-08 13:47 ` [PATCH 3/6] cfi_flash_new: generate flash erase dots in common function Sascha Hauer
2010-02-08 13:47 ` [PATCH 4/6] cfi_flash_new: make code more readable, return is not a function Sascha Hauer
2010-02-08 13:47 ` Sascha Hauer [this message]
2010-02-08 13:47 ` [PATCH 6/6] cfi_flash: move include/cfi_flash.c next to driver Sascha Hauer
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