RFC: Booting from NAND for mini2440 platform

RFC: Booting from NAND for mini2440 platform

[Juergen Beisert]

This patch series brings in NAND boot support for the mini24040 platform and
also does some cleanup (and also fixes some typos).

Testes are welcome, as I only have a mini2440 board with HY57V561620 SDRAM
devices. I added some documentation (thanks to Marek for info how it works
with DFU) about the board itself and how to bring in barebox. Hope it helps
others to enjoy barebox on mini2440.

Regards,
Juergen


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[PATCH 01/15] S3C24xx: Just remove a trailing whitespace

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/mach-s3c24xx/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 0f4d6e7..8b86d2d 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -43,7 +43,7 @@ config MACH_MINI2440
 	select CPU_S3C2440
 	select HAS_DM9000
 	help
-	  Say Y here if you are using Mini 2440 dev board equipped 
+	  Say Y here if you are using Mini 2440 dev board equipped
 	  with a Samsung S3C2440 Processor
 
 endchoice
-- 
1.7.2.3


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[PATCH 02/15] MACH-S3C24xx: Fix typo in UART2_SIZE macro

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/mach-s3c24xx/include/mach/s3c24x0-iomap.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/include/mach/s3c24x0-iomap.h b/arch/arm/mach-s3c24xx/include/mach/s3c24x0-iomap.h
index ab3dc4f..a990d80 100644
--- a/arch/arm/mach-s3c24xx/include/mach/s3c24x0-iomap.h
+++ b/arch/arm/mach-s3c24xx/include/mach/s3c24x0-iomap.h
@@ -88,7 +88,7 @@
 #define UART1_BASE (S3C24X0_UART_BASE)
 #define UART1_SIZE 0x4000
 #define UART2_BASE (S3C24X0_UART_BASE + 0x4000)
-#define UART3_SIZE 0x4000
+#define UART2_SIZE 0x4000
 #define UART3_BASE (S3C24X0_UART_BASE + 0x8000)
 #define UART3_SIZE 0x4000
 
-- 
1.7.2.3


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[PATCH 03/15] MACH-S324xx: Change detection method of the second SDRAM bank

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

There is no rule how to connect the SDRAMs to the two clocks signales the CPU
provides. Some boards are using them on a per bank base, some others on a per
chip base. So, the check for the enabled second clock cannot be used to detect
if the second SDRAM bank is populated.
A better way is to check the MT bits of the second SDRAM bank register. When
the init code sets these bits to '00' the second bank is not used for SDRAM
and gets ignored.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/mach-s3c24xx/generic.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/generic.c b/arch/arm/mach-s3c24xx/generic.c
index c04e0b6..4c7e799 100644
--- a/arch/arm/mach-s3c24xx/generic.c
+++ b/arch/arm/mach-s3c24xx/generic.c
@@ -181,8 +181,9 @@ int s3c24xx_dump_clocks(void)
 	printf("hclk:    %7d kHz\n", s3c24xx_get_hclk() / 1000);
 	printf("pclk:    %7d kHz\n", s3c24xx_get_pclk() / 1000);
 	printf("SDRAM1:   CL%d@%dMHz\n", ((readl(BANKCON6) & 0xc) >> 2) + 2, s3c24xx_get_hclk() / 1000000);
-	if (!(readl(MISCCR) & (1 << 18)))
-		printf("SDRAM2:   CL%d@%dMHz\n", ((readl(BANKCON7) & 0xc) >> 2) + 2, s3c24xx_get_hclk() / 1000000);
+	if ((readl(BANKCON7) & (0x3 << 15)) == (0x3 << 15))
+		printf("SDRAM2:   CL%d@%dMHz\n", ((readl(BANKCON7) & 0xc) >> 2) + 2,
+			s3c24xx_get_hclk() / 1000000);
 	return 0;
 }
 
-- 
1.7.2.3


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[PATCH 04/15] mini2440: Be a little be pedantic with the include file order

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

---
 arch/arm/boards/mini2440/mini2440.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index 9639176..a3bb817 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -29,15 +29,15 @@
 #include <common.h>
 #include <driver.h>
 #include <init.h>
-#include <asm/armlinux.h>
 #include <generated/mach-types.h>
 #include <partition.h>
+#include <dm9000.h>
 #include <nand.h>
+#include <asm/armlinux.h>
 #include <asm/io.h>
 #include <mach/s3c24x0-iomap.h>
 #include <mach/s3c24x0-nand.h>
 #include <mach/s3c24xx-generic.h>
-#include <dm9000.h>
 
 static struct memory_platform_data ram_pdata = {
 	.name		= "ram0",
-- 
1.7.2.3


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[PATCH 05/15] mini2440: Fix a runtime warning when '.id=0' is used

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

---
 arch/arm/boards/mini2440/mini2440.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index a3bb817..e22fbd0 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -45,6 +45,7 @@ static struct memory_platform_data ram_pdata = {
 };
 
 static struct device_d sdram_dev = {
+	.id		= -1,
 	.name		= "mem",
 	.map_base	= CS6_BASE,
 	.size		= 64 * 1024 * 1024,
-- 
1.7.2.3


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[PATCH 06/15] mini2440: Add some useful documentation

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/mini2440.c |  157 +++++++++++++++++++++++++++++++++++
 1 files changed, 157 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index e22fbd0..17496a4 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -64,6 +64,10 @@ static struct device_d nand_dev = {
 
 /*
  * dm9000 network controller onboard
+ * Connected to CS line 4 and interrupt line EINT7,
+ * data width is 16 bit
+ * Area 1: Offset 0x300...0x303
+ * Area 2: Offset 0x304...0x307
  */
 static struct dm9000_platform_data dm9000_data = {
 	.iobase   = CS4_BASE + 0x300,
@@ -139,3 +143,156 @@ static int mini2440_console_init(void)
 }
 
 console_initcall(mini2440_console_init);
+
+/** @page mini2440 FriendlyARM's mini2440
+
+This system is based on a Samsung S3C2440 CPU. The card is shipped with:
+
+- S3C2440\@400 MHz or 533 MHz (ARM920T/ARMv4T)
+- 12 MHz crystal reference
+- 32.768 kHz crystal reference
+- SDRAM 64 MiB (one bank only)
+   - HY57V561620 (two devices for 64 MiB to form a 32 bit bus)
+     - 4M x 16bit x 4 Banks Mobile SDRAM
+     - 8192 refresh cycles / 64 ms
+     - CL2\@100 MHz
+     - 133 MHz max
+     - collumn address size is 9 bits
+     - row address size is 13 bits
+   - MT48LC16M16 (two devices for 64 MiB to form a 32 bit bus)
+     - 4M x 16bit x 4 Banks Mobile SDRAM
+     - commercial & industrial type
+     - 8192 refresh cycles / 64 ms
+     - CL2\@100 MHz
+     - 133 MHz max
+     - collumn address size is 9 bits
+     - row address size is 13 bits
+- NAND Flash 128MiB...1GiB
+   - K9Fxx08
+- NOR Flash (up to 22 address lines available)
+   - AM29LV160DB, 2 MiB
+   - SST39VF1601, 2 MiB
+   - 16 bit data bus
+- SD card interface, 3.3V (fixed voltage)
+- Host and device USB interface, USB1.1 compliant
+- UDA1341TS Audio
+- DM9000 Ethernet interface
+  - uses CS#4
+  - uses EINT7
+  - 16 bit data bus
+- I2C interface, 100 KHz and 400 KHz
+  - EEPROM
+    - ST M24C08
+    - address 0x50
+- Speaker on GPB0 ("low" = inactive)
+- LCD interface
+- Touch Screen interface
+- Camera interface
+- I2S interface
+- AC97 Audio-CODEC interface
+- three serial RS232 interfaces (one with level converter)
+- SPI interface
+- JTAG interface
+
+How to get the binary image:
+
+Using the default configuration:
+
+@code
+make ARCH=arm mini2440_defconfig
+@endcode
+
+Build the binary image:
+
+@code
+make ARCH=arm CROSS_COMPILE=armv4compiler
+@endcode
+
+@note replace the armv4compiler with your ARM v4 cross compiler.
+
+How to bring in \a barebox ?
+
+First run it as a second stage bootloader. There are two known working ways to
+do so:
+
+One way is to use the "device firmware update" feature of the 'supervivi'.
+ - connect a terminal application to the mini2440's serial connector
+ - switch S2 to 'boot from NOR' to boot into 'supervivi'
+ - connect your host to the usb device connector on the mini2440
+ - switch on your mini2440
+ - in 'supervivi' type q (command line) then:
+@code
+load ram 0x31000000 \<barebox-size\> u
+@endcode
+ - use a tool for DFU update (for example from openkomo) to transfer the 'barebox.bin' binary
+ - then in 'supervivi' just run
+@code
+go 0x31000000
+@endcode
+
+A second way is to use any kind of JTAG adapter. For this case I'm using the
+'JTAKkey tiny' from Amontec and OpenOCD. First you need an adapter for this
+kind of Dongle as it uses a 20 pin connector with 2.54 mm grid, and the
+mini2440 uses a 10 pin connector with 2 mm grid.
+
+@code
+             Amontec JTAGkey tiny               mini2440
+           -------------------------------------------------------
+              VREF  1   2  n.c.             VREF  1   2  VREF
+            TRST_N  3   4  GND            TRST_N  3   4  SRST_N
+               TDI  5   6  GND               TDI  5   6  TDO
+               TMS  7   8  GND               TMS  7   8  GND
+               TCK  9  10  GND               TCK  9  10  GND
+              n.c. 11  12  GND
+               TDO 13  14  GND
+            SRST_N 15  16  GND
+              n.c. 17  18  GND
+              n.c. 19  20  GND
+@endcode
+
+Create a simple board description file. I did it this way:
+
+@code
+source [find interface/jtagkey-tiny.cfg]
+source [find target/samsung_s3c2440.cfg]
+
+adapter_khz 12000
+@endcode
+
+And then the following steps:
+ - connect a terminal application to the mini2440's serial connector
+ - connect the mini2440 to a working network
+ - switch S2 to boot from NOR to boot into 'supervivi'
+ - switch on your mini2440
+ - run the OpenOCD daemon configured with the file shown above
+ - connect to the OpenOCD daemon via 'telnet'.
+ - run the following commands to download @a barebox into your target
+@code
+> halt
+> load_image \<path to the 'barebox.bin'\> 0x31000000 bin
+> resume 0x31000000
+@endcode
+
+Now @a barebox is starting from an already initialized CPU and SDRAM (done by
+'supervivi').
+
+Change to your terminal console and configure the network first. Adapt the
+following settings to your network:
+@code
+eth0.ipaddr=192.168.1.240
+eth0.netmask=255.255.255.0
+eth0.gateway=192.168.23.2
+eth0.serverip=192.168.1.7
+eth0.ethaddr=00:04:f3:00:06:35
+@endcode
+
+A 'ping' to your TFTP server should bring a "...is alive" message now.
+
+We are ready now to program @a barebox into the NAND flash:
+
+@code
+erase /dev/nand0.barebox.bb
+tftp barebox.bin /dev/nand0.barebox.bb
+@endcode
+
+*/
-- 
1.7.2.3


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[PATCH 07/15] mini2440: Add PLL settings

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

This is required in order to enable booting from NAND and using the generic
S3C2440 setup routines.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/config.h |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/config.h b/arch/arm/boards/mini2440/config.h
index a664017..1edd69c 100644
--- a/arch/arm/boards/mini2440/config.h
+++ b/arch/arm/boards/mini2440/config.h
@@ -26,6 +26,28 @@
  */
 #define S3C24XX_CLOCK_REFERENCE 12000000
 
+/**
+ * Define the main clock configuration to be used in register CLKDIVN
+ *
+ * We must limit the frequency of the connected SDRAMs with the clock ratio
+ * setup to 1:4:8. This will result into FCLK:HCLK:PCLK = 405Mhz:102MHz:51MHz
+ */
+#define BOARD_SPECIFIC_CLKDIVN 0x05
+
+/**
+ * Define the MPLL configuration to be used in register MPLLCON
+ *
+ * We want the MPLL to run at 405.0 MHz
+ */
+#define BOARD_SPECIFIC_MPLL ((0x7f << 12) + (2 << 4) + 1)
+
+/**
+ * Define the UPLL configuration to be used in register UPLLCON
+ *
+ * We want the UPLL to run at 48.0 MHz
+ */
+#define BOARD_SPECIFIC_UPLL ((0x38 << 12) + (2 << 4) + 2)
+
 /*
  * Flash access timings
  * Tacls  = 0ns (but 20ns data setup time)
-- 
1.7.2.3


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[PATCH 08/15] mini2440: Add SDRAM config settings

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

This is required in order to enable booting from NAND and using the generic
S3C2440 setup routines.

Two types of SDRAM devices are known to be shipped by FriendlyARM. This config
should work on both of them. But it is really tested only for the HY57V561620
type.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/config.h |   58 +++++++++++++++++++++++++++++++++++++
 1 files changed, 58 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/config.h b/arch/arm/boards/mini2440/config.h
index 1edd69c..1f2fb4c 100644
--- a/arch/arm/boards/mini2440/config.h
+++ b/arch/arm/boards/mini2440/config.h
@@ -69,4 +69,62 @@
 #ifdef CONFIG_S3C24XX_NAND_BOOT
 # define BOARD_DEFAULT_NAND_TIMING CALC_NFCONF_TIMING(A9M2440_TACLS, A9M2440_TWRPH0, A9M2440_TWRPH1)
 #endif
+
+/*
+ * Needed in the generic SDRAM boot code only
+ *
+ * SDRAM configuration
+ * Two types of SDRAM devices are common on mini2440:
+ * - Two devices of HY57V561620 to form 64 MiB in bank 6 only
+ *   - http://friendlyarm.net/dl.php?file=HY57V561620.pdf
+ * - Two devices of MT48LC16M16 to form 64 MiB in bank 6 only
+ *   - http://friendlyarm.net/dl.php?file=MT48LC16M16.pdf
+
+ * Most of the time the CPU is specified for 400 MHz only. As the CPU frequency
+ * and the SDRAM frequency are fix coupled by 4:1, the SDRAM runs at HCLCK.
+ * So, we need a 100 MHz timing setup with CL=2 for the SDRAMs.
+ */
+
+/*
+ * - ST7/WS7/DW7: reserved, this SDRAM bank is not used
+ * - ST6/WS6/DW6: 32 bit data bus (for SDRAM usage)
+ * - ST5/WS5/DW5: reserved, to be set by the board init code
+ * - ST4/WS4/DW4: reserved, to be set by the board init code
+ * - ST3/WS3/DW3: reserved, to be set by the board init code
+ * - ST2/WS2/DW2: reserved, to be set by the board init code
+ * - ST1/WS1/DW1: reserved, to be set by the board init code
+ * - DW0: not to be changed
+ */
+#define BOARD_SPECIFIC_BWSCON ((0x3 << 28) | (0x2 << 24) | 0x333330)
+/*
+ *  - MT = 11 (= sync dram type)
+ *  - Trcd = 00 (= CL2)
+ *  - SCAN = 01 (= 9 bit collumns)
+ */
+#define BOARD_SPECIFIC_BANKCON6 ((0x3 << 15) + (0x0 << 2) + (0x1))
+#define BOARD_SPECIFIC_BANKCON7 0 /* disabled */
+/*
+ * SDRAM refresh settings
+ *  - REFEN = 1 (= refresh enabled)
+ *  - TREFMD = 0 (= auto refresh)
+ *  - Trp = 00 (= 2 RAS precharge clocks)
+ *  - Tsrc = 01 (= 5 clocks -> row cycle time @100MHz 2+5=7 -> 70ns)
+ *  - Refresh = 2^11 + 1 - 100 * 7.8 = 2049 - 780 = 1269
+ */
+#define BOARD_SPECIFIC_REFRESH ((0x1 << 23) + (0x0 << 22) + (0x0 << 20) + (0x1 << 18) + 1269)
+/*
+ * SDRAM banksize
+ *  - BURST_EN = 1 (= burst mode enabled)
+ *  - SCKE_EN = 1 (= SDRAM SCKE enabled)
+ *  - SCLK_EN = 1 (= clock active only during accesses)
+ *  - BK67MAP = 001 (= 64 MiB)
+ */
+# define BOARD_SPECIFIC_BANKSIZE ((1 << 7) + (1 << 5) + (1 << 4) + 1)
+/*
+ * SDRAM mode register
+ * CL = 010 (= 2 clocks)
+ */
+# define BOARD_SPECIFIC_MRSRB6 (0x2 << 4)
+# define BOARD_SPECIFIC_MRSRB7 0	/* not used */
+
 #endif /* __CONFIG_H */
-- 
1.7.2.3


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[PATCH 09/15] mini2440: Configure debug UART pins very early

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

This is required in order to enable booting from NAND and to avoid any visible
garbage on the screen until the pins are really set.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/mini2440.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index 17496a4..46581cc 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -138,6 +138,15 @@ static struct device_d mini2440_serial_device = {
 
 static int mini2440_console_init(void)
 {
+	/*
+	 * configure the UART1 right now, as barebox will
+	 * start to send data immediately
+	 */
+	s3c_gpio_mode(GPH0_NCTS0);
+	s3c_gpio_mode(GPH1_NRTS0);
+	s3c_gpio_mode(GPH2_TXD0);
+	s3c_gpio_mode(GPH3_RXD0);
+
 	register_device(&mini2440_serial_device);
 	return 0;
 }
-- 
1.7.2.3


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[PATCH 10/15] mini2440: Add SDRAM size autodetection

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

If the SDRAM type will change in the future, only the 'config.h' must be
adapted to the new settings. The real size will be read back from this setting.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/mini2440.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index 46581cc..2aeb09e 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -48,7 +48,6 @@ static struct device_d sdram_dev = {
 	.id		= -1,
 	.name		= "mem",
 	.map_base	= CS6_BASE,
-	.size		= 64 * 1024 * 1024,
 	.platform_data	= &ram_pdata,
 };
 
@@ -87,6 +86,8 @@ static int mini2440_devices_init(void)
 {
 	uint32_t reg;
 
+	sdram_dev.size = s3c24x0_get_memory_size();
+
 	reg = readl(BWSCON);
 
 	/* CS#4 to access the network controller */
-- 
1.7.2.3


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[PATCH 11/15] mini2440: Add GPIO settings

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

This is required in order to enable booting from NAND, when there is no
other first level bootlader.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/mini2440.c |  137 +++++++++++++++++++++++++++++++++++
 1 files changed, 137 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index 2aeb09e..30dff07 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -35,6 +35,7 @@
 #include <nand.h>
 #include <asm/armlinux.h>
 #include <asm/io.h>
+#include <mach/gpio.h>
 #include <mach/s3c24x0-iomap.h>
 #include <mach/s3c24x0-nand.h>
 #include <mach/s3c24xx-generic.h>
@@ -82,12 +83,148 @@ static struct device_d dm9000_dev = {
 	.platform_data = &dm9000_data,
 };
 
+static const unsigned pin_usage[] = {
+	/* address bus, used by NOR, SDRAM */
+	GPA1_ADDR16,
+	GPA2_ADDR17,
+	GPA3_ADDR18,
+	GPA4_ADDR19,
+	GPA5_ADDR20,
+	GPA6_ADDR21,
+	GPA7_ADDR22,
+
+	GPA8_ADDR23_GPIO | GPIO_IN,
+	GPA9_ADDR24,	/* BA0 */
+	GPA10_ADDR25,	/* BA1 */
+	GPA11_ADDR26_GPIO | GPIO_IN,	/* not connected */
+
+	/* DM9000 requirements */
+	GPA15_NGCS4,
+	GPF7_EINT7,
+
+	/* de-activate the speaker */
+	GPB0_GPIO | GPIO_OUT | GPIO_VAL(0),
+
+	/* SD socket */
+	GPE5_SDCLK,
+	GPE6_SDCMD,
+	GPE7_SDDAT0,
+	GPE8_SDDAT1,
+	GPE9_SDDAT2,
+	GPE10_SDDAT3,
+	GPG8_GPIO | GPIO_IN,	/* change detection */
+	GPH8_GPIO | GPIO_IN,	/* write protection sense */
+
+	/* NAND requirements */
+	GPA17_CLE,
+	GPA18_ALE,
+	GPA19_NFWE,
+	GPA20_NFRE,
+	GPA21_NRSTOUT,
+	GPA22_NFCE,
+
+	/* Video out */
+	GPC0_LEND,
+	GPC1_VCLK,
+	GPC2_VLINE,
+	GPC3_VFRAME,
+	GPC4_VM,
+	GPC5_LPCOE,
+	GPC6_LPCREV,
+	GPC7_LPCREVB,
+	GPG4_LCD_PWREN,
+
+	GPC8_VD0,
+	GPC9_VD1,
+	GPC10_VD2,
+	GPC11_VD3,
+	GPC12_VD4,
+	GPC13_VD5,
+	GPC14_VD6,
+	GPC15_VD7,
+	GPD0_VD8,
+	GPD1_VD9,
+	GPD2_VD10,
+	GPD3_VD11,
+	GPD4_VD12,
+	GPD5_VD13,
+	GPD6_VD14,
+	GPD7_VD15,
+	GPD8_VD16,
+	GPD9_VD17,
+	GPD10_VD18,
+	GPD11_VD19,
+	GPD12_VD20,
+	GPD13_VD21,
+	GPD14_VD22,
+	GPD15_VD23,
+
+	/* K6 or CON12, pin 6, external pull up  */
+	GPG11_EINT19 | GPIO_IN,
+	/* K5 or CON12, pin 5*/
+	GPG7_EINT15 | GPIO_IN,
+	/* K4 or CON12, pin 4 */
+	GPG6_EINT14 | GPIO_IN,
+	/* K3 or CON12, pin 3 */
+	GPG5_EINT13 | GPIO_IN,
+	/* K2 or CON12, pin 2 */
+	GPG3_EINT11 | GPIO_IN,
+	/* K1 or CON12, pin 1, external pull up */
+	GPG0_EINT8 | GPIO_IN,
+
+	/* LED 1 1=off */
+	GPB5_GPIO | GPIO_OUT | GPIO_VAL(1),
+	/* LED 2 1=off */
+	GPB6_GPIO | GPIO_OUT | GPIO_VAL(1),
+	/* LED 3 1=off */
+	GPB7_GPIO | GPIO_OUT | GPIO_VAL(1),
+	/* LED 4 1=off */
+	GPB8_GPIO | GPIO_OUT | GPIO_VAL(1),
+
+	/* camera interface (ignore it) */
+	GPJ0_GPIO | GPIO_IN,
+	GPJ1_GPIO | GPIO_IN,
+	GPJ2_GPIO | GPIO_IN,
+	GPJ3_GPIO | GPIO_IN,
+	GPJ4_GPIO | GPIO_IN,
+	GPJ5_GPIO | GPIO_IN,
+	GPJ6_GPIO | GPIO_IN,
+	GPJ7_GPIO | GPIO_IN,
+	GPJ8_GPIO | GPIO_IN,
+	GPJ9_GPIO | GPIO_IN,
+	GPJ10_GPIO | GPIO_IN,
+	GPJ11_GPIO | GPIO_IN,
+	GPJ12_GPIO | GPIO_IN,
+
+	/* I2C bus */
+	GPE14_IICSCL,	/* external pull up */
+	GPE15_IICSDA,	/* external pull up */
+
+	GPA12_NGCS1,	/* CON5, pin 7 */
+	GPA13_NGCS2,	/* CON5, pin 8 */
+	GPA14_NGCS3,	/* CON5, pin 9 */
+	GPA16_NGCS5,	/* CON5, pin 10 */
+
+	/* UART2 (spare) */
+	GPH4_TXD1,
+	GPH5_RXD1,
+
+	/* UART3 (spare) */
+	GPH6_TXD2,
+	GPH7_RXD2,
+};
+
 static int mini2440_devices_init(void)
 {
 	uint32_t reg;
+	int i;
 
 	sdram_dev.size = s3c24x0_get_memory_size();
 
+	/* ----------- configure the access to the outer space ---------- */
+	for (i = 0; i < ARRAY_SIZE(pin_usage); i++)
+		s3c_gpio_mode(pin_usage[i]);
+
 	reg = readl(BWSCON);
 
 	/* CS#4 to access the network controller */
-- 
1.7.2.3


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[PATCH 12/15] mini2440: Add MCI support

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

---
 arch/arm/boards/mini2440/mini2440.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index 30dff07..b30a9e2 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -33,12 +33,14 @@
 #include <partition.h>
 #include <dm9000.h>
 #include <nand.h>
+#include <mci.h>
 #include <asm/armlinux.h>
 #include <asm/io.h>
 #include <mach/gpio.h>
 #include <mach/s3c24x0-iomap.h>
 #include <mach/s3c24x0-nand.h>
 #include <mach/s3c24xx-generic.h>
+#include <mach/mci.h>
 
 static struct memory_platform_data ram_pdata = {
 	.name		= "ram0",
@@ -83,6 +85,19 @@ static struct device_d dm9000_dev = {
 	.platform_data = &dm9000_data,
 };
 
+static struct s3c_mci_platform_data mci_data = {
+	.caps = MMC_MODE_4BIT | MMC_MODE_HS | MMC_MODE_HS_52MHz,
+	.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+	.gpio_detect = 232,	/* GPG8_GPIO */
+	.detect_invert = 0,
+};
+
+static struct device_d mci_dev = {
+	.name     = "s3c_mci",
+	.map_base = S3C2410_SDI_BASE,
+	.platform_data	= &mci_data,
+};
+
 static const unsigned pin_usage[] = {
 	/* address bus, used by NOR, SDRAM */
 	GPA1_ADDR16,
@@ -252,6 +267,7 @@ static int mini2440_devices_init(void)
 	devfs_add_partition("nand0", 0x40000, 0x20000, PARTITION_FIXED, "env_raw");
 	dev_add_bb_dev("env_raw", NULL);
 #endif
+	register_device(&mci_dev);
 	armlinux_add_dram(&sdram_dev);
 	armlinux_set_bootparams((void *)sdram_dev.map_base + 0x100);
 	armlinux_set_architecture(MACH_TYPE_MINI2440);
-- 
1.7.2.3


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[PATCH 13/15] mini2440: Add booting from NAND support

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

With this patch barebox can now be booted from RAM, NOR and NAND on the
mini2440 platform. 'CONFIG_S3C24XX_NAND_BOOT' must still be 'y' to be able to
boot from NAND.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/Makefile        |    2 +-
 arch/arm/boards/mini2440/lowlevel_init.S |   39 ++++++++++++++++++++++++++++++
 arch/arm/mach-s3c24xx/Kconfig            |    4 +++
 3 files changed, 44 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/boards/mini2440/lowlevel_init.S

diff --git a/arch/arm/boards/mini2440/Makefile b/arch/arm/boards/mini2440/Makefile
index 09f7e7d..856fed0 100644
--- a/arch/arm/boards/mini2440/Makefile
+++ b/arch/arm/boards/mini2440/Makefile
@@ -1,2 +1,2 @@
 
-obj-y += mini2440.o
+obj-y += mini2440.o lowlevel_init.o
diff --git a/arch/arm/boards/mini2440/lowlevel_init.S b/arch/arm/boards/mini2440/lowlevel_init.S
new file mode 100644
index 0000000..41f50cb
--- /dev/null
+++ b/arch/arm/boards/mini2440/lowlevel_init.S
@@ -0,0 +1,39 @@
+/*
+ * Low level initialization for the FriendlyARM mini2440 board
+ */
+
+#include <config.h>
+#include <mach/s3c24x0-iomap.h>
+
+	.section ".text_bare_init.board_init_lowlevel","ax"
+
+/* ------------------------------------------------------------------------ */
+
+.globl board_init_lowlevel
+board_init_lowlevel:
+
+	mov r10, lr		/* save the link register */
+
+	bl s3c24x0_disable_wd
+
+	/* skip everything here if we are already running from SDRAM */
+	cmp pc, #S3C24X0_SDRAM_BASE
+	blo 1f
+	cmp pc, #S3C24X0_SDRAM_END
+	bhs 1f
+
+	mov pc, r10
+
+/* we are running from NOR or NAND/SRAM memory. Do further initialisation */
+1:
+	bl s3c24x0_pll_init
+
+	bl s3c24x0_sdram_init
+
+#ifdef CONFIG_S3C24XX_NAND_BOOT
+	mov lr, r10		/* restore the link register */
+/* up to here we are running from the internal SRAM area */
+	b s3c24x0_nand_boot	/* does return directly to our caller into SDRAM */
+#else
+	mov pc, r10
+#endif
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 8b86d2d..33d230c 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -41,6 +41,10 @@ config MACH_A9M2440
 config MACH_MINI2440
 	bool "Mini 2440"
 	select CPU_S3C2440
+	select MACH_HAS_LOWLEVEL_INIT
+	select MACH_DO_LOWLEVEL_INIT
+	select S3C24XX_PLL_INIT
+	select S3C24XX_SDRAM_INIT
 	select HAS_DM9000
 	help
 	  Say Y here if you are using Mini 2440 dev board equipped
-- 
1.7.2.3


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[PATCH 14/15] mini2440: Remove some A9M2440 platform leftovers

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/env/config |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boards/mini2440/env/config b/arch/arm/boards/mini2440/env/config
index 05a2d01..3169fd9 100644
--- a/arch/arm/boards/mini2440/env/config
+++ b/arch/arm/boards/mini2440/env/config
@@ -4,9 +4,8 @@
 kernel=net
 root=net
 
-#uimage=uImage-a9m2440
-uimage=uImage
-jffs2=root-a9m2440.jffs2
+uimage=uImage-mini2440
+jffs2=root-mini2440.jffs2
 
 autoboot_timeout=3
 
-- 
1.7.2.3


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[PATCH 15/15] mini2440: Use generic environment

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>

This patch also adapts the default config to use all new features.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
---
 arch/arm/boards/mini2440/env/bin/_update       |   34 ----
 arch/arm/boards/mini2440/env/bin/boot          |   40 ----
 arch/arm/boards/mini2440/env/bin/hush_hack     |    1 -
 arch/arm/boards/mini2440/env/bin/init          |   34 ----
 arch/arm/boards/mini2440/env/bin/update_kernel |   13 --
 arch/arm/boards/mini2440/env/bin/update_root   |   13 --
 arch/arm/configs/mini2440_defconfig            |  226 +-----------------------
 7 files changed, 7 insertions(+), 354 deletions(-)
 delete mode 100644 arch/arm/boards/mini2440/env/bin/_update
 delete mode 100644 arch/arm/boards/mini2440/env/bin/boot
 delete mode 100644 arch/arm/boards/mini2440/env/bin/hush_hack
 delete mode 100644 arch/arm/boards/mini2440/env/bin/init
 delete mode 100644 arch/arm/boards/mini2440/env/bin/update_kernel
 delete mode 100644 arch/arm/boards/mini2440/env/bin/update_root

diff --git a/arch/arm/boards/mini2440/env/bin/_update b/arch/arm/boards/mini2440/env/bin/_update
deleted file mode 100644
index b10682e..0000000
--- a/arch/arm/boards/mini2440/env/bin/_update
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/sh
-
-if [ -z "$part" -o -z "$image" ]; then
-	echo "define \$part and \$image"
-	exit 1
-fi
-
-if [ ! -e "$part" ]; then
-	echo "Partition $part does not exist"
-	exit 1
-fi
-
-if [ $# = 1 ]; then
-	image=$1
-fi
-
-if [ x$ip = xdhcp ]; then
-	dhcp
-fi
-
-ping $eth0.serverip
-if [ $? -ne 0 ] ; then
-	echo "update aborted"
-	exit 1
-fi
-
-echo
-echo "erasing partition $part"
-erase $part
-
-echo
-echo "flashing $image to $part"
-echo
-tftp $image $part
diff --git a/arch/arm/boards/mini2440/env/bin/boot b/arch/arm/boards/mini2440/env/bin/boot
deleted file mode 100644
index 86e22cf..0000000
--- a/arch/arm/boards/mini2440/env/bin/boot
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/bin/sh
-
-. /env/config
-
-if [ x$1 = xnand ]; then
-	root=nand
-	kernel=nand
-fi
-
-if [ x$1 = xnet ]; then
-	root=net
-	kernel=net
-fi
-
-if [ x$root = xnand ]; then
-	bootargs="$bootargs root=$rootpart_nand rootfstype=jffs2"
-fi
-if [ x$root = xnet ]; then
-	bootargs="$bootargs root=/dev/nfs nfsroot=$eth0.serverip:$nfsroot,v3,tcp"
-	if [ x$ip = xdhcp ]; then
-		bootargs="$bootargs ip=dhcp"
-	else
-		bootargs="$bootargs ip=$eth0.ipaddr:$eth0.serverip:$eth0.gateway:$eth0.netmask:::"
-	fi
-fi
-
-bootargs="$bootargs mtdparts=\"NAND 32MiB 3,3V 8-bit:$nand_parts\""
-
-bootargs="$bootargs cs89x0_media=rj45 cs89x0_mac=$eth0.ethaddr"
-
-if [ x$kernel = xnet ]; then
-	if [ x$ip = xdhcp ]; then
-		dhcp
-	fi
-	tftp $uimage uImage || exit 1
-	bootm uImage
-else
-	bootm /dev/nand0.kernel.bb
-fi
-
diff --git a/arch/arm/boards/mini2440/env/bin/hush_hack b/arch/arm/boards/mini2440/env/bin/hush_hack
deleted file mode 100644
index 5fffa92..0000000
--- a/arch/arm/boards/mini2440/env/bin/hush_hack
+++ /dev/null
@@ -1 +0,0 @@
-nand -a /dev/nand0.*
diff --git a/arch/arm/boards/mini2440/env/bin/init b/arch/arm/boards/mini2440/env/bin/init
deleted file mode 100644
index e98ab84..0000000
--- a/arch/arm/boards/mini2440/env/bin/init
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/sh
-
-PATH=/env/bin
-export PATH
-
-. /env/config
-
-if [ -e /dev/nand0 ]; then
-#addpart /dev/nand0 $nand_parts
-
-	# Uh, oh, hush first expands wildcards and then starts executing
-	# commands. What a bug!
-	source /env/bin/hush_hack
-fi
-
-if [ -z $eth0.ethaddr ]; then
-	while [ -z $eth0.ethaddr ]; do
-		readline "no MAC address set for eth0. please enter the one found on your board: " eth0.ethaddr
-	done
-	echo -a /env/config "eth0.ethaddr=$eth0.ethaddr"
-fi
-
-echo
-echo -n "Hit any key to stop autoboot: "
-timeout -a $autoboot_timeout
-if [ $? != 0 ]; then
-	echo
-	echo "type update_kernel [<imagename>] to update kernel into flash"
-	echo "type update_root [<imagename>] to update rootfs into flash"
-	echo
-	exit
-fi
-
-boot
diff --git a/arch/arm/boards/mini2440/env/bin/update_kernel b/arch/arm/boards/mini2440/env/bin/update_kernel
deleted file mode 100644
index c43a557..0000000
--- a/arch/arm/boards/mini2440/env/bin/update_kernel
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-. /env/config
-
-part=/dev/nand0.kernel.bb
-
-if [ x$1 = x ]; then
-	image=$uimage
-else
-	image=$1
-fi
-
-. /env/bin/_update $image
diff --git a/arch/arm/boards/mini2440/env/bin/update_root b/arch/arm/boards/mini2440/env/bin/update_root
deleted file mode 100644
index 46cbca5..0000000
--- a/arch/arm/boards/mini2440/env/bin/update_root
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-. /env/config
-
-part=/dev/nand0.root.bb
-
-if [ x$1 = x ]; then
-	image=$jffs2
-else
-	image=$1
-fi
-
-. /env/bin/_update $image
diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig
index f289f0d..e770871 100644
--- a/arch/arm/configs/mini2440_defconfig
+++ b/arch/arm/configs/mini2440_defconfig
@@ -1,122 +1,19 @@
-#
-# Automatically generated make config: don't edit
-# Linux barebox version: 2010.10.0
-# Tue Oct 19 09:01:55 2010
-#
-# CONFIG_BOARD_LINKER_SCRIPT is not set
-CONFIG_GENERIC_LINKER_SCRIPT=y
-CONFIG_ARM=y
-
-#
-# System Type
-#
-# CONFIG_ARCH_AT91 is not set
-# CONFIG_ARCH_EP93XX is not set
-# CONFIG_ARCH_IMX is not set
-# CONFIG_ARCH_NETX is not set
-# CONFIG_ARCH_NOMADIK is not set
-# CONFIG_ARCH_OMAP is not set
 CONFIG_ARCH_S3C24xx=y
-
-#
-# Processor Type
-#
-CONFIG_CPU_32=y
-CONFIG_CPU_ARM920T=y
-CONFIG_CPU_32v4T=y
-
-#
-# processor features
-#
-CONFIG_ARCH_TEXT_BASE=0x31fc0000
-CONFIG_BOARDINFO="Mini 2440"
-CONFIG_CPU_S3C2440=y
-# CONFIG_MACH_A9M2410 is not set
-# CONFIG_MACH_A9M2440 is not set
 CONFIG_MACH_MINI2440=y
-
-#
-# Board specific settings
-#
-
-#
-# S3C24X0 Features
-#
-# CONFIG_S3C24XX_PLL_INIT is not set
-# CONFIG_S3C24XX_SDRAM_INIT is not set
 CONFIG_S3C24XX_NAND_BOOT=y
-# CONFIG_AEABI is not set
-
-#
-# Arm specific settings
-#
-CONFIG_CMD_ARM_CPUINFO=y
+CONFIG_AEABI=y
 CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
-CONFIG_DEFCONFIG_LIST="$ARCH_DEFCONFIG"
-CONFIG_GREGORIAN_CALENDER=y
-CONFIG_HAS_KALLSYMS=y
-CONFIG_HAS_MODULES=y
-CONFIG_CMD_MEMORY=y
-CONFIG_ENV_HANDLING=y
-
-#
-# General Settings
-#
-CONFIG_LOCALVERSION_AUTO=y
-
-#
-# memory layout
-#
-CONFIG_HAVE_CONFIGURABLE_TEXT_BASE=y
-CONFIG_TEXT_BASE=0x31fc0000
-CONFIG_HAVE_CONFIGURABLE_MEMORY_LAYOUT=y
-CONFIG_MEMORY_LAYOUT_DEFAULT=y
-# CONFIG_MEMORY_LAYOUT_FIXED is not set
-CONFIG_STACK_SIZE=0x8000
-CONFIG_MALLOC_SIZE=0x400000
+CONFIG_TEXT_BASE=0x33e00000
 CONFIG_BROKEN=y
-CONFIG_EXPERIMENTAL=y
-# CONFIG_MODULES is not set
-# CONFIG_KALLSYMS is not set
-CONFIG_PROMPT="barebox:"
-CONFIG_BAUDRATE=38400
+CONFIG_PROMPT="mini2440:"
 CONFIG_LONGHELP=y
-CONFIG_CBSIZE=1024
-CONFIG_MAXARGS=16
-CONFIG_SHELL_HUSH=y
-# CONFIG_SHELL_SIMPLE is not set
 CONFIG_GLOB=y
-CONFIG_PROMPT_HUSH_PS2="> "
-# CONFIG_HUSH_FANCY_PROMPT is not set
 CONFIG_CMDLINE_EDITING=y
 CONFIG_AUTO_COMPLETE=y
-# CONFIG_MENU is not set
-# CONFIG_PASSWORD is not set
-CONFIG_DYNAMIC_CRC_TABLE=y
-CONFIG_ERRNO_MESSAGES=y
-CONFIG_TIMESTAMP=y
-CONFIG_CONSOLE_FULL=y
-CONFIG_CONSOLE_ACTIVATE_FIRST=y
-# CONFIG_OF_FLAT_TREE is not set
 CONFIG_PARTITION=y
-CONFIG_DEFAULT_ENVIRONMENT=y
+CONFIG_DEFAULT_ENVIRONMENT_GENERIC=y
 CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/mini2440/env"
-
-#
-# Debugging
-#
 CONFIG_DEBUG_INFO=y
-# CONFIG_ENABLE_FLASH_NOISE is not set
-# CONFIG_ENABLE_PARTITION_NOISE is not set
-CONFIG_ENABLE_DEVICE_NOISE=y
-
-#
-# Commands
-#
-
-#
-# scripting
-#
 CONFIG_CMD_EDIT=y
 CONFIG_CMD_SLEEP=y
 CONFIG_CMD_SAVEENV=y
@@ -124,128 +21,19 @@ CONFIG_CMD_LOADENV=y
 CONFIG_CMD_EXPORT=y
 CONFIG_CMD_PRINTENV=y
 CONFIG_CMD_READLINE=y
-CONFIG_CMD_TRUE=y
-CONFIG_CMD_FALSE=y
-# CONFIG_CMD_LOGIN is not set
-# CONFIG_CMD_PASSWD is not set
-
-#
-# file commands
-#
-CONFIG_CMD_LS=y
-CONFIG_CMD_RM=y
-CONFIG_CMD_CAT=y
-CONFIG_CMD_MKDIR=y
-CONFIG_CMD_RMDIR=y
-CONFIG_CMD_CP=y
-CONFIG_CMD_PWD=y
-CONFIG_CMD_CD=y
-CONFIG_CMD_MOUNT=y
-CONFIG_CMD_UMOUNT=y
-
-#
-# console
-#
-CONFIG_CMD_CLEAR=y
-CONFIG_CMD_ECHO=y
-# CONFIG_CMD_ECHO_E is not set
-
-#
-# memory
-#
-# CONFIG_CMD_LOADB is not set
-# CONFIG_CMD_LOADY is not set
-# CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MEMINFO=y
-CONFIG_CMD_CRC=y
 CONFIG_CMD_MTEST=y
-# CONFIG_CMD_MTEST_ALTERNATIVE is not set
-
-#
-# flash
-#
 CONFIG_CMD_FLASH=y
-# CONFIG_CMD_UBI is not set
-
-#
-# booting
-#
-CONFIG_CMD_BOOTM=y
-# CONFIG_CMD_BOOTM_ZLIB is not set
-# CONFIG_CMD_BOOTM_BZLIB is not set
-# CONFIG_CMD_BOOTM_LZO is not set
-# CONFIG_CMD_BOOTM_SHOW_TYPE is not set
-CONFIG_CMD_BOOTZ=y
-CONFIG_CMD_BOOTU=y
 CONFIG_CMD_RESET=y
 CONFIG_CMD_GO=y
 CONFIG_CMD_TIMEOUT=y
 CONFIG_CMD_PARTITION=y
-CONFIG_CMD_TEST=y
-CONFIG_CMD_VERSION=y
-CONFIG_CMD_HELP=y
-CONFIG_CMD_DEVINFO=y
-# CONFIG_CMD_UNLZO is not set
+CONFIG_CMD_GPIO=y
 CONFIG_NET=y
 CONFIG_NET_DHCP=y
-# CONFIG_NET_NFS is not set
 CONFIG_NET_PING=y
 CONFIG_NET_TFTP=y
-# CONFIG_NET_TFTP_PUSH is not set
-# CONFIG_NET_NETCONSOLE is not set
-# CONFIG_NET_RESOLV is not set
-
-#
-# Drivers
-#
-
-#
-# serial drivers
-#
-# CONFIG_DRIVER_SERIAL_ARM_DCC is not set
-# CONFIG_DRIVER_SERIAL_NS16550 is not set
-CONFIG_DRIVER_SERIAL_S3C24X0=y
-# CONFIG_DRIVER_SERIAL_S3C24X0_AUTOSYNC is not set
-CONFIG_HAS_DM9000=y
-CONFIG_MIIDEV=y
-
-#
-# Network drivers
-#
-# CONFIG_DRIVER_NET_SMC911X is not set
-# CONFIG_DRIVER_NET_SMC91111 is not set
 CONFIG_DRIVER_NET_DM9000=y
-
-#
-# SPI drivers
-#
 # CONFIG_SPI is not set
-# CONFIG_I2C is not set
-
-#
-# flash drivers
-#
-# CONFIG_DRIVER_CFI is not set
-CONFIG_MTD=y
-CONFIG_NAND=y
-CONFIG_NAND_S3C24X0=y
-# CONFIG_MTD_NAND_VERIFY_WRITE is not set
-# CONFIG_MTD_NAND_ECC_SMC is not set
-CONFIG_MTD_NAND_IDS=y
-# CONFIG_MTD_NAND_DISKONCHIP is not set
-# CONFIG_UBI is not set
-# CONFIG_ATA is not set
-# CONFIG_USB is not set
-# CONFIG_USB_GADGET is not set
-# CONFIG_VIDEO is not set
-
-#
-# Filesystem support
-#
-# CONFIG_FS_CRAMFS is not set
-CONFIG_FS_RAMFS=y
-CONFIG_FS_DEVFS=y
-CONFIG_CRC32=y
-# CONFIG_DIGEST is not set
-# CONFIG_GENERIC_FIND_NEXT_BIT is not set
-# CONFIG_PROCESS_ESCAPE_SEQUENCE is not set
+CONFIG_MCI=y
+CONFIG_MCI_S3C=y
-- 
1.7.2.3


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mini2440: Forgotten patches to make it work (1 of 2)

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>
Subject: mini2440: Make barebox able to save a runtime environment

Without this modification saving a modified environment ends up with:

mini2440:/ saveenv
saving environment
could not open /dev/env0: Read-only file system

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>

---
 arch/arm/boards/mini2440/mini2440.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: barebox-2011.01.0/arch/arm/boards/mini2440/mini2440.c
===================================================================
--- barebox-2011.01.0.orig/arch/arm/boards/mini2440/mini2440.c
+++ barebox-2011.01.0/arch/arm/boards/mini2440/mini2440.c
@@ -262,11 +262,11 @@ static int mini2440_devices_init(void)
 	/* ----------- add some vital partitions -------- */
 	devfs_del_partition("self_raw");
 	devfs_add_partition("nand0", 0x00000, 0x40000, PARTITION_FIXED, "self_raw");
-	dev_add_bb_dev("self_raw", NULL);
+	dev_add_bb_dev("self_raw", "self0");
 
 	devfs_del_partition("env_raw");
 	devfs_add_partition("nand0", 0x40000, 0x20000, PARTITION_FIXED, "env_raw");
-	dev_add_bb_dev("env_raw", NULL);
+	dev_add_bb_dev("env_raw", "env0");
 #endif
 	register_device(&mci_dev);
 	armlinux_add_dram(&sdram_dev);

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mini2440: Forgotten patches to make it work (2 of 2)

[Juergen Beisert]

From: Juergen Beisert <juergen@kreuzholzen.de>
Subject: MACH-S3C24XX: Add support for flash based BBT

The default configuration of the current 2.6.37 kernel uses a flash based BBT.
So, barebox must also use one, to be in sync with the kernel about bad blocks
in the flash.

Due to the used OOB layout, the generic BBT description coming with the
framework can be used.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>

---
 arch/arm/boards/mini2440/mini2440.c               |    3 ++-
 arch/arm/mach-s3c24xx/include/mach/s3c24x0-nand.h |    1 +
 drivers/mtd/nand/nand_s3c2410.c                   |    6 ++++++
 3 files changed, 9 insertions(+), 1 deletion(-)

Index: barebox-2011.01.0/arch/arm/boards/mini2440/mini2440.c
===================================================================
--- barebox-2011.01.0.orig/arch/arm/boards/mini2440/mini2440.c
+++ barebox-2011.01.0/arch/arm/boards/mini2440/mini2440.c
@@ -55,7 +55,8 @@ static struct device_d sdram_dev = {
 };
 
 static struct s3c24x0_nand_platform_data nand_info = {
-	.nand_timing = CALC_NFCONF_TIMING(A9M2440_TACLS, A9M2440_TWRPH0, A9M2440_TWRPH1)
+	.nand_timing = CALC_NFCONF_TIMING(A9M2440_TACLS, A9M2440_TWRPH0, A9M2440_TWRPH1),
+	.flash_bbt = 1,	/* same as the kernel */
 };
 
 static struct device_d nand_dev = {
Index: barebox-2011.01.0/arch/arm/mach-s3c24xx/include/mach/s3c24x0-nand.h
===================================================================
--- barebox-2011.01.0.orig/arch/arm/mach-s3c24xx/include/mach/s3c24x0-nand.h
+++ barebox-2011.01.0/arch/arm/mach-s3c24xx/include/mach/s3c24x0-nand.h
@@ -45,6 +45,7 @@ extern void s3c24x0_nand_load_image(void
  */
 struct s3c24x0_nand_platform_data {
 	uint32_t nand_timing;	/**< value for the NFCONF register (timing bits only) */
+	char flash_bbt;	/**< not 0 if a flash based BBT should be used */
 };
 
 /**
Index: barebox-2011.01.0/drivers/mtd/nand/nand_s3c2410.c
===================================================================
--- barebox-2011.01.0.orig/drivers/mtd/nand/nand_s3c2410.c
+++ barebox-2011.01.0/drivers/mtd/nand/nand_s3c2410.c
@@ -349,6 +349,7 @@ static int s3c24x0_nand_inithw(struct s3
 static int s3c24x0_nand_probe(struct device_d *dev)
 {
 	struct nand_chip *chip;
+	struct s3c24x0_nand_platform_data *pdata = dev->platform_data;
 	struct mtd_info *mtd;
 	struct s3c24x0_nand_host *host;
 	int ret;
@@ -393,6 +394,11 @@ static int s3c24x0_nand_probe(struct dev
 	chip->ecc.bytes = 3;
 	chip->ecc.layout = &nand_hw_eccoob;
 
+	if (pdata->flash_bbt) {
+		/* use a flash based bbt */
+		chip->options |= NAND_USE_FLASH_BBT;
+	}
+
 	ret = s3c24x0_nand_inithw(host);
 	if (ret != 0)
 		goto on_error;

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Re: [PATCH 14/15] mini2440: Remove some A9M2440 platform leftovers

[Juergen Beisert]

Hmm, arch/arm/boards/mini2440/env/config needs some additional adaption to 
make it work with the generic environment. I will re-send a new patch for 
this.

jbe

-- 
Pengutronix e.K.                              | Juergen Beisert             |
Linux Solutions for Science and Industry      | Phone: +49-8766-939 228     |
Vertretung Sued/Muenchen, Germany             | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686              | http://www.pengutronix.de/  |

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