* [PATCH] Nios2: Add Altera TSE MAC driver
@ 2011-04-03 21:45 franck.jullien
2011-04-06 9:48 ` Sascha Hauer
0 siblings, 1 reply; 2+ messages in thread
From: franck.jullien @ 2011-04-03 21:45 UTC (permalink / raw)
To: barebox
From: Franck JULLIEN <franck.jullien@gmail.com>
This patch adds the Altera Triple Speed Ethernet driver.
Signed-off-by: Franck JULLIEN <franck.jullien@gmail.com>
---
drivers/net/Kconfig | 16 +
drivers/net/Makefile | 5 +-
drivers/net/altera_tse.c | 720 ++++++++++++++++++++++++++++++++++++++++++++++
drivers/net/altera_tse.h | 522 +++++++++++++++++++++++++++++++++
4 files changed, 1261 insertions(+), 2 deletions(-)
create mode 100644 drivers/net/altera_tse.c
create mode 100644 drivers/net/altera_tse.h
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 6479417..19e35db 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -84,6 +84,22 @@ config DRIVER_NET_TAP
bool "tap Ethernet driver"
depends on LINUX
+config DRIVER_NET_TSE
+ depends on NIOS2
+ bool "Altera TSE ethernet driver"
+ select MIIDEV
+ help
+ This option enables support for the Altera TSE MAC.
+
+config TSE_USE_DEDICATED_DESC_MEM
+ depends on DRIVER_NET_TSE
+ bool "Altera TSE uses dedicated descriptor memory"
+ help
+ This option tells the TSE driver to use an onchip memory
+ to store SGDMA descriptors. Descriptor memory is not
+ reserved with a malloc but directly mapped to the memory
+ address (defined in config.h)
+
source "drivers/net/usb/Kconfig"
endmenu
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 96d3d32..f02618b 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -1,7 +1,7 @@
-obj-$(CONFIG_DRIVER_NET_CS8900) += cs8900.o
+obj-$(CONFIG_DRIVER_NET_CS8900) += cs8900.o
obj-$(CONFIG_DRIVER_NET_SMC911X) += smc911x.o
obj-$(CONFIG_DRIVER_NET_SMC91111) += smc91111.o
-obj-$(CONFIG_DRIVER_NET_DM9000) += dm9000.o
+obj-$(CONFIG_DRIVER_NET_DM9000) += dm9000.o
obj-$(CONFIG_DRIVER_NET_NETX) += netx_eth.o
obj-$(CONFIG_DRIVER_NET_AT91_ETHER) += at91_ether.o
obj-$(CONFIG_DRIVER_NET_MPC5200) += fec_mpc5200.o
@@ -11,3 +11,4 @@ obj-$(CONFIG_DRIVER_NET_MACB) += macb.o
obj-$(CONFIG_DRIVER_NET_TAP) += tap.o
obj-$(CONFIG_MIIDEV) += miidev.o
obj-$(CONFIG_NET_USB) += usb/
+obj-$(CONFIG_DRIVER_NET_TSE) += altera_tse.o
diff --git a/drivers/net/altera_tse.c b/drivers/net/altera_tse.c
new file mode 100644
index 0000000..464a6d4
--- /dev/null
+++ b/drivers/net/altera_tse.c
@@ -0,0 +1,720 @@
+/*
+ * Altera TSE Network driver
+ *
+ * Copyright (C) 2008 Altera Corporation.
+ * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
+ * Copyright (C) 2011 Franck JULLIEN, <elec4fun@gmail.com>
+ *
+ * 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 <common.h>
+#include <net.h>
+#include <miidev.h>
+#include <init.h>
+#include <clock.h>
+#include <asm/io.h>
+#include <asm/dma-mapping.h>
+#include "altera_tse.h"
+
+static struct phy_info phy_info_dp83848 = {
+ 0x20005C90,
+ "DP83848C",
+ 32,
+ (struct phy_cmd[]){ /* config */
+ {PHY_BMCR, PHY_BMCR_RESET, NULL},
+ {PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG, NULL},
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* startup */
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* shutdown */
+ {miim_end,}
+ }
+};
+
+/* a generic flavor. */
+static struct phy_info phy_info_generic = {
+ 0,
+ "Unknown/Generic PHY",
+ 32,
+ (struct phy_cmd[]){ /* config */
+ {PHY_BMCR, PHY_BMCR_RESET, NULL},
+ {PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG, NULL},
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* startup */
+ {PHY_BMSR, miim_read, NULL},
+ {PHY_BMSR, miim_read, NULL},
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* shutdown */
+ {miim_end,}
+ }
+};
+
+static struct phy_info *phy_info[] = {
+ &phy_info_dp83848,
+ NULL
+};
+
+/* This is a generic routine that the SGDMA mode-specific routines
+ * call to populate a descriptor.
+ * arg1 :pointer to first SGDMA descriptor.
+ * arg2 :pointer to next SGDMA descriptor.
+ * arg3 :Address to where data to be written.
+ * arg4 :Address from where data to be read.
+ * arg5 :no of byte to transaction.
+ * arg6 :variable indicating to generate start of packet or not
+ * arg7 :read fixed
+ * arg8 :write fixed
+ * arg9 :read burst
+ * arg10 :write burst
+ * arg11 :atlantic_channel number
+ */
+static void alt_sgdma_construct_descriptor_burst(
+ struct alt_sgdma_descriptor *desc,
+ struct alt_sgdma_descriptor *next,
+ uint32_t *read_addr,
+ uint32_t *write_addr,
+ uint16_t length_or_eop,
+ uint8_t generate_eop,
+ uint8_t read_fixed,
+ uint8_t write_fixed_or_sop,
+ uint8_t read_burst,
+ uint8_t write_burst,
+ uint8_t atlantic_channel)
+{
+ uint32_t temp;
+
+ /*
+ * Mark the "next" descriptor as "not" owned by hardware. This prevents
+ * The SGDMA controller from continuing to process the chain. This is
+ * done as a single IO write to bypass cache, without flushing
+ * the entire descriptor, since only the 8-bit descriptor status must
+ * be flushed.
+ */
+ if (!next)
+ printf("Next descriptor not defined!!\n");
+
+ temp = readb(&next->descriptor_control);
+ writeb(temp & ~ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK,
+ &next->descriptor_control);
+
+ writel((uint32_t)read_addr, &desc->source);
+ writel((uint32_t)write_addr, &desc->destination);
+ writel((uint32_t)next, &desc->next);
+
+ writel(0, &desc->source_pad);
+ writel(0, &desc->destination_pad);
+ writel(0, &desc->next_pad);
+ writew(length_or_eop, &desc->bytes_to_transfer);
+ writew(0, &desc->actual_bytes_transferred);
+ writeb(0, &desc->descriptor_status);
+
+ /* SGDMA burst not currently supported */
+ writeb(0, &desc->read_burst);
+ writeb(0, &desc->write_burst);
+
+ /*
+ * Set the descriptor control block as follows:
+ * - Set "owned by hardware" bit
+ * - Optionally set "generate EOP" bit
+ * - Optionally set the "read from fixed address" bit
+ * - Optionally set the "write to fixed address bit (which serves
+ * serves as a "generate SOP" control bit in memory-to-stream mode).
+ * - Set the 4-bit atlantic channel, if specified
+ *
+ * Note this step is performed after all other descriptor information
+ * has been filled out so that, if the controller already happens to be
+ * pointing at this descriptor, it will not run (via the "owned by
+ * hardware" bit) until all other descriptor has been set up.
+ */
+
+ writeb((ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK) |
+ (generate_eop ? ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK : 0) |
+ (read_fixed ? ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK : 0) |
+ (write_fixed_or_sop ? ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK : 0) |
+ (atlantic_channel ? ((atlantic_channel & 0x0F) << 3) : 0),
+ &desc->descriptor_control);
+}
+
+static int alt_sgdma_do_sync_transfer(struct alt_sgdma_registers *dev,
+ struct alt_sgdma_descriptor *desc)
+{
+ uint32_t temp;
+ uint64_t start;
+ uint64_t tout;
+
+ /* Wait for any pending transfers to complete */
+ tout = ALT_TSE_SGDMA_BUSY_WATCHDOG_TOUT * MSECOND;
+
+ start = get_time_ns();
+
+ while (readl(&dev->status) & ALT_SGDMA_STATUS_BUSY_MSK) {
+ if (is_timeout(start, tout)) {
+ debug("Timeout waiting sgdma in do sync!\n");
+ break;
+ }
+ }
+
+ /*
+ * Clear any (previous) status register information
+ * that might occlude our error checking later.
+ */
+ writel(0xFF, &dev->status);
+
+ /* Point the controller at the descriptor */
+ writel((uint32_t)desc, &dev->next_descriptor_pointer);
+ debug("next desc in sgdma 0x%x\n", (uint32_t)dev->next_descriptor_pointer);
+
+ /*
+ * Set up SGDMA controller to:
+ * - Disable interrupt generation
+ * - Run once a valid descriptor is written to controller
+ * - Stop on an error with any particular descriptor
+ */
+ writel(ALT_SGDMA_CONTROL_RUN_MSK | ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK,
+ &dev->control);
+
+ /* Wait for the descriptor (chain) to complete */
+ debug("wait for sgdma....");
+ start = get_time_ns();
+
+ while (readl(&dev->status) & ALT_SGDMA_STATUS_BUSY_MSK) {
+ if (is_timeout(start, tout)) {
+ debug("Timeout waiting sgdma in do sync!\n");
+ break;
+ }
+ }
+
+ debug("done\n");
+
+ /* Clear Run */
+ temp = readl(&dev->control);
+ writel(temp & ~ALT_SGDMA_CONTROL_RUN_MSK, &dev->control);
+
+ /* Get & clear status register contents */
+ debug("tx sgdma status = 0x%x", readl(&dev->status));
+ writel(0xFF, &dev->status);
+
+ return 0;
+}
+
+static int alt_sgdma_do_async_transfer(struct alt_sgdma_registers *dev,
+ struct alt_sgdma_descriptor *desc)
+{
+ uint64_t start;
+ uint64_t tout;
+
+ /* Wait for any pending transfers to complete */
+ tout = ALT_TSE_SGDMA_BUSY_WATCHDOG_TOUT * MSECOND;
+
+ start = get_time_ns();
+
+ while (readl(&dev->status) & ALT_SGDMA_STATUS_BUSY_MSK) {
+ if (is_timeout(start, tout)) {
+ debug("Timeout waiting sgdma in do async!\n");
+ break;
+ }
+ }
+
+ /*
+ * Clear any (previous) status register information
+ * that might occlude our error checking later.
+ */
+ writel(0xFF, &dev->status);
+
+ /* Point the controller at the descriptor */
+ writel((uint32_t)desc, &dev->next_descriptor_pointer);
+
+ /*
+ * Set up SGDMA controller to:
+ * - Disable interrupt generation
+ * - Run once a valid descriptor is written to controller
+ * - Stop on an error with any particular descriptor
+ */
+ writel(ALT_SGDMA_CONTROL_RUN_MSK | ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK,
+ &dev->control);
+
+ return 0;
+}
+
+static int tse_get_ethaddr(struct eth_device *edev, unsigned char *m)
+{
+/* If there is already a MAC address configured when barebox starts (??), use it */
+#ifdef THERE_IS_A_DEFAULT_MAC_ADDR_IN_TSE
+ struct altera_tse_priv *priv = edev->priv;
+ struct alt_tse_mac *mac_dev = priv->mac_dev;
+
+ m[5] = (readl(&mac_dev->mac_addr_1) >> 8) && 0xFF;
+ m[4] = (readl(&mac_dev->mac_addr_1)) && 0xFF;
+ m[3] = (readl(mac_dev->mac_addr_0) >> 24) && 0xFF;
+ m[2] = (readl(mac_dev->mac_addr_0) >> 16) && 0xFF;
+ m[1] = (readl(mac_dev->mac_addr_0) >> 8) && 0xFF;
+ m[0] = (readl(mac_dev->mac_addr_0)) && 0xFF;
+
+ return 0;
+#else
+ return -1;
+#endif
+}
+
+static int tse_set_ethaddr(struct eth_device *edev, unsigned char *m)
+{
+ struct altera_tse_priv *priv = edev->priv;
+ struct alt_tse_mac *mac_dev = priv->mac_dev;
+
+ debug("Setting MAC address to %02x:%02x:%02x:%02x:%02x:%02x\n",
+ m[0], m[1], m[2], m[3], m[4], m[5]);
+
+ writel(m[3] << 24 | m[2] << 16 | m[1] << 8 | m[0], &mac_dev->mac_addr_0);
+ writel((m[5] << 8 | m[4]) & 0xFFFF, &mac_dev->mac_addr_1);
+
+ return 0;
+}
+
+static int tse_phy_read(struct mii_device *mdev, int phy_addr, int reg)
+{
+ struct eth_device *edev = mdev->edev;
+ struct alt_tse_mac *mac_dev;
+ uint32_t *mdio_regs;
+
+ mac_dev = (struct alt_tse_mac *)edev->iobase;
+ writel(phy_addr, &mac_dev->mdio_phy1_addr);
+
+ mdio_regs = (uint32_t *)&mac_dev->mdio_phy1;
+
+ return readl(&mdio_regs[reg]) & 0xFFFF;
+}
+
+static int tse_phy_write(struct mii_device *mdev, int phy_addr, int reg, int val)
+{
+ struct eth_device *edev = mdev->edev;
+ struct alt_tse_mac *mac_dev;
+ uint32_t *mdio_regs;
+
+ mac_dev = (struct alt_tse_mac *)edev->iobase;
+ writel(phy_addr, &mac_dev->mdio_phy1_addr);
+
+ mdio_regs = (uint32_t *)&mac_dev->mdio_phy1;
+
+ writel((uint32_t)val, &mdio_regs[reg]);
+
+ return 0;
+}
+
+static void tse_reset(struct eth_device *edev)
+{
+ /* stop sgdmas, disable tse receive */
+ struct altera_tse_priv *priv = edev->priv;
+ struct alt_tse_mac *mac_dev = priv->mac_dev;
+ struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
+ struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
+ struct alt_sgdma_descriptor *rx_desc = (struct alt_sgdma_descriptor *)&priv->rx_desc[0];
+ struct alt_sgdma_descriptor *tx_desc = (struct alt_sgdma_descriptor *)&priv->tx_desc[0];
+ uint64_t start;
+ uint64_t tout;
+
+ tout = ALT_TSE_SGDMA_BUSY_WATCHDOG_TOUT * MSECOND;
+
+ /* clear rx desc & wait for sgdma to complete */
+ writeb(0, &rx_desc->descriptor_control);
+ writel(0, &rx_sgdma->control);
+
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &rx_sgdma->control);
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &rx_sgdma->control);
+ mdelay(100);
+
+ start = get_time_ns();
+
+ while (readl(&rx_sgdma->status) & ALT_SGDMA_STATUS_BUSY_MSK) {
+ if (is_timeout(start, tout)) {
+ printf("Timeout waiting for rx sgdma!\n");
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &rx_sgdma->control);
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &rx_sgdma->control);
+ break;
+ }
+ }
+
+ /* clear tx desc & wait for sgdma to complete */
+ writeb(0, &tx_desc->descriptor_control);
+ writel(0, &tx_sgdma->control);
+
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &tx_sgdma->control);
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &tx_sgdma->control);
+ mdelay(100);
+
+ start = get_time_ns();
+
+ while (readl(&tx_sgdma->status) & ALT_SGDMA_STATUS_BUSY_MSK) {
+ if (is_timeout(start, tout)) {
+ printf("Timeout waiting for tx sgdma!\n");
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &tx_sgdma->control);
+ writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, &tx_sgdma->control);
+ break;
+ }
+ }
+
+ /* reset the mac */
+ writel(ALTERA_TSE_CMD_TX_ENA_MSK | ALTERA_TSE_CMD_RX_ENA_MSK |
+ ALTERA_TSE_CMD_SW_RESET_MSK, &mac_dev->command_config);
+
+ start = get_time_ns();
+ tout = ALT_TSE_SW_RESET_WATCHDOG_TOUT * MSECOND;
+
+ while (readl(&mac_dev->command_config) & ALTERA_TSE_CMD_SW_RESET_MSK) {
+ if (is_timeout(start, tout)) {
+ printf("TSEMAC SW reset bit never cleared!\n");
+ break;
+ }
+ }
+}
+
+static int tse_eth_open(struct eth_device *edev)
+{
+ return 0;
+}
+
+static int tse_eth_send(struct eth_device *edev, void *packet, int length)
+{
+
+ struct altera_tse_priv *priv = edev->priv;
+ struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
+ struct alt_sgdma_descriptor *tx_desc = (struct alt_sgdma_descriptor *)priv->tx_desc;
+
+ struct alt_sgdma_descriptor *tx_desc_cur = (struct alt_sgdma_descriptor *)&tx_desc[0];
+
+ flush_dcache_range((uint32_t)packet, (uint32_t)packet + length);
+ alt_sgdma_construct_descriptor_burst(
+ (struct alt_sgdma_descriptor *)&tx_desc[0],
+ (struct alt_sgdma_descriptor *)&tx_desc[1],
+ (uint32_t *)packet, /* read addr */
+ (uint32_t *)0, /* */
+ length, /* length or EOP ,will change for each tx */
+ 0x1, /* gen eop */
+ 0x0, /* read fixed */
+ 0x1, /* write fixed or sop */
+ 0x0, /* read burst */
+ 0x0, /* write burst */
+ 0x0 /* channel */
+ );
+
+ alt_sgdma_do_sync_transfer(tx_sgdma, tx_desc_cur);
+
+ return 0;;
+}
+
+static void tse_eth_halt(struct eth_device *edev)
+{
+
+}
+
+static int tse_eth_rx(struct eth_device *edev)
+{
+ uint16_t packet_length = 0;
+
+ struct altera_tse_priv *priv = edev->priv;
+ struct alt_sgdma_descriptor *rx_desc = (struct alt_sgdma_descriptor *)priv->rx_desc;
+ struct alt_sgdma_descriptor *rx_desc_cur = &rx_desc[0];
+ struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
+
+ if (rx_desc_cur->descriptor_status &
+ ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK) {
+
+ packet_length = rx_desc->actual_bytes_transferred;
+ net_receive(NetRxPackets[0], packet_length);
+
+ /* Clear Run */
+ rx_sgdma->control = (rx_sgdma->control & (~ALT_SGDMA_CONTROL_RUN_MSK));
+
+ /* start descriptor again */
+ flush_dcache_range((uint32_t)(NetRxPackets[0]), (uint32_t)(NetRxPackets[0]) + PKTSIZE);
+ alt_sgdma_construct_descriptor_burst(
+ (struct alt_sgdma_descriptor *)&rx_desc[0],
+ (struct alt_sgdma_descriptor *)&rx_desc[1],
+ (uint32_t)0x0, /* read addr */
+ (uint32_t *)NetRxPackets[0], /* */
+ 0x0, /* length or EOP */
+ 0x0, /* gen eop */
+ 0x0, /* read fixed */
+ 0x0, /* write fixed or sop */
+ 0x0, /* read burst */
+ 0x0, /* write burst */
+ 0x0 /* channel */
+ );
+
+ /* setup the sgdma */
+ alt_sgdma_do_async_transfer(priv->sgdma_rx, &rx_desc[0]);
+ }
+
+ return 0;
+}
+
+/* Grab the identifier of the device's PHY, and search through
+* all of the known PHYs to see if one matches. If so, return
+* it, if not, return NULL
+*/
+static struct phy_info *get_phy_info(struct eth_device *edev)
+{
+ struct altera_tse_priv *priv = edev->priv;
+ struct phy_info *theInfo = NULL;
+ uint32_t phy_reg;
+ uint32_t phy_ID;
+ uint8_t i;
+ uint8_t mii_bus_scan = 0;
+ uint8_t current_mii_address = 1;
+
+ if ((priv->miidev)->address == -1)
+ mii_bus_scan = 1;
+ else
+ current_mii_address = (priv->miidev)->address;
+
+ do {
+ /* Grab the bits from PHYIR1, and put them in the upper half */
+ phy_reg = tse_phy_read(priv->miidev, current_mii_address, MIIM_PHYIR1);
+ phy_ID = (phy_reg & 0xffff) << 16;
+
+ /* Grab the bits from PHYIR2, and put them in the lower half */
+ phy_reg = tse_phy_read(priv->miidev, current_mii_address, MIIM_PHYIR2);
+ phy_ID |= (phy_reg & 0xffff);
+
+ if (phy_ID != 0xffffffff) {
+ printf("PHY found at address %d\n", current_mii_address);
+ break;
+ }
+
+ current_mii_address++;
+
+ } while (current_mii_address < 32 && mii_bus_scan);
+
+ if (phy_ID != 0xffffffff) {
+ /* loop through all the known PHY types, and find one that */
+ /* matches the ID we read from the PHY. */
+ for (i = 0; phy_info[i]; i++) {
+ if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift)) {
+ theInfo = phy_info[i];
+ break;
+ }
+ }
+
+ if (theInfo == NULL) {
+ theInfo = &phy_info_generic;
+ printf("No support for PHY id %x; assuming generic\n", phy_ID);
+ } else
+ printf("PHY is %s (0x%x)\n", theInfo->name, phy_ID);
+ } else
+ printf("PHY not found\n");
+
+ return theInfo;
+}
+
+/* Execute the given series of commands on the given device's
+ * PHY, running functions as necessary
+ */
+static void phy_run_commands(struct altera_tse_priv *priv, struct phy_cmd *cmd)
+{
+ uint8_t i;
+ uint32_t result;
+
+ for (i = 0; cmd->mii_reg != miim_end; i++) {
+ if (cmd->mii_data == miim_read) {
+ result = tse_phy_read(priv->miidev, (priv->miidev)->address, cmd->mii_reg);
+ if (cmd->funct != NULL)
+ (*(cmd->funct)) (result, priv);
+ } else {
+ if (cmd->funct != NULL)
+ result = (*(cmd->funct)) (cmd->mii_reg, priv);
+ else
+ result = cmd->mii_data;
+
+ tse_phy_write(priv->miidev, (priv->miidev)->address, cmd->mii_reg, result);
+ }
+ cmd++;
+ }
+}
+
+/* Phy init code */
+static int init_phy(struct eth_device *edev)
+{
+ struct altera_tse_priv *priv = edev->priv;
+ struct phy_info *curphy;
+
+ /* Get the cmd structure corresponding to the attached
+ * PHY */
+ curphy = get_phy_info(edev);
+
+ if (curphy == NULL) {
+ priv->phyinfo = NULL;
+ return 0;
+ } else
+ debug("%s found\n", curphy->name);
+
+ priv->phyinfo = curphy;
+
+ phy_run_commands(priv, priv->phyinfo->config);
+
+ return 1;
+}
+
+static int tse_init_dev(struct eth_device *edev)
+{
+ struct altera_tse_priv *priv = edev->priv;
+ struct alt_tse_mac *mac_dev = priv->mac_dev;
+ struct alt_sgdma_descriptor *tx_desc = priv->tx_desc;
+ struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
+ struct alt_sgdma_descriptor *rx_desc_cur;
+
+ rx_desc_cur = (struct alt_sgdma_descriptor *)&rx_desc[0];
+
+ tse_reset(edev);
+ init_phy(edev);
+
+ /* need to create sgdma */
+ alt_sgdma_construct_descriptor_burst(
+ (struct alt_sgdma_descriptor *)&tx_desc[0],
+ (struct alt_sgdma_descriptor *)&tx_desc[1],
+ (uint32_t *)NULL, /* read addr */
+ (uint32_t *)0, /* */
+ 0, /* length or EOP ,will change for each tx */
+ 0x1, /* gen eop */
+ 0x0, /* read fixed */
+ 0x1, /* write fixed or sop */
+ 0x0, /* read burst */
+ 0x0, /* write burst */
+ 0x0 /* channel */
+ );
+
+ flush_dcache_range((uint32_t)(NetRxPackets[0]), (uint32_t)(NetRxPackets[0]) + PKTSIZE);
+ alt_sgdma_construct_descriptor_burst(
+ (struct alt_sgdma_descriptor *)&rx_desc[0],
+ (struct alt_sgdma_descriptor *)&rx_desc[1],
+ (uint32_t)0x0, /* read addr */
+ (uint32_t *)NetRxPackets[0], /* */
+ 0x0, /* length or EOP */
+ 0x0, /* gen eop */
+ 0x0, /* read fixed */
+ 0x0, /* write fixed or sop */
+ 0x0, /* read burst */
+ 0x0, /* write burst */
+ 0x0 /* channel */
+ );
+
+ /* start rx async transfer */
+ alt_sgdma_do_async_transfer(priv->sgdma_rx, rx_desc_cur);
+
+ /* Initialize MAC registers */
+ writel(PKTSIZE, &mac_dev->max_frame_length);
+
+ /* NO Shift */
+ writel(0, &mac_dev->rx_cmd_stat);
+ writel(0, &mac_dev->tx_cmd_stat);
+
+ /* enable MAC */
+ writel(ALTERA_TSE_CMD_TX_ENA_MSK | ALTERA_TSE_CMD_RX_ENA_MSK, &mac_dev->command_config);
+
+ if (priv->phyinfo != NULL)
+ phy_run_commands(priv, priv->phyinfo->startup);
+
+ return 0;
+}
+
+static int tse_probe(struct device_d *dev)
+{
+ struct altera_tse_priv *priv;
+ struct mii_device *miidev;
+ struct eth_device *edev;
+ struct alt_sgdma_descriptor *rx_desc;
+ struct alt_sgdma_descriptor *tx_desc;
+#ifndef CONFIG_TSE_USE_DEDICATED_DESC_MEM
+ uint32_t dma_handle;
+#endif
+
+ edev = xzalloc(sizeof(struct eth_device) + sizeof(struct altera_tse_priv));
+ miidev = xzalloc(sizeof(struct mii_device));
+
+ dev->type_data = edev;
+ edev->priv = (struct altera_tse_priv *)(edev + 1);
+
+ edev->iobase = dev->map_base;
+
+ priv = edev->priv;
+
+ edev->init = tse_init_dev;
+ edev->open = tse_eth_open;
+ edev->send = tse_eth_send;
+ edev->recv = tse_eth_rx;
+ edev->halt = tse_eth_halt;
+ edev->get_ethaddr = tse_get_ethaddr;
+ edev->set_ethaddr = tse_set_ethaddr;
+
+#ifdef CONFIG_TSE_USE_DEDICATED_DESC_MEM
+ tx_desc = (struct alt_sgdma_descriptor *)NIOS_SOPC_TSE_DESC_MEM_BASE;
+ rx_desc = tx_desc + 2;
+#else
+ tx_desc = dma_alloc_coherent(sizeof(*tx_desc) * (3 + PKTBUFSRX), &dma_handle);
+ rx_desc = tx_desc + 2;
+
+ if (!tx_desc) {
+ free(edev);
+ free(miidev);
+ return 0;
+ }
+#endif
+
+ memset(rx_desc, 0, (sizeof *rx_desc) * (PKTBUFSRX + 1));
+ memset(tx_desc, 0, (sizeof *tx_desc) * 2);
+
+ priv->mac_dev = (struct alt_tse_mac *)dev->map_base;
+ priv->sgdma_rx = (struct alt_sgdma_registers *)NIOS_SOPC_SGDMA_RX_BASE;
+ priv->sgdma_tx = (struct alt_sgdma_registers *)NIOS_SOPC_SGDMA_TX_BASE;
+ priv->rx_desc = rx_desc;
+ priv->tx_desc = tx_desc;
+
+ priv->miidev = miidev;
+
+ miidev->read = tse_phy_read;
+ miidev->write = tse_phy_write;
+#ifndef NIOS_SOPC_PHY_ADDR
+ miidev->address = -1;
+#else
+ miidev->address = NIOS_SOPC_PHY_ADDR;
+#endif
+ miidev->flags = 0;
+ miidev->edev = edev;
+
+ mii_register(miidev);
+
+ return eth_register(edev);
+}
+
+static struct driver_d altera_tse_driver = {
+ .name = "altera_tse",
+ .probe = tse_probe,
+};
+
+static int tse_init(void)
+{
+ register_driver(&altera_tse_driver);
+ return 0;
+}
+
+device_initcall(tse_init);
+
diff --git a/drivers/net/altera_tse.h b/drivers/net/altera_tse.h
new file mode 100644
index 0000000..af2694b
--- /dev/null
+++ b/drivers/net/altera_tse.h
@@ -0,0 +1,522 @@
+/*
+ * Altera 10/100/1000 triple speed ethernet mac
+ *
+ * Copyright (C) 2008 Altera Corporation.
+ * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ALTERA_TSE_H_
+#define _ALTERA_TSE_H_
+
+#define __packed_1_ __attribute__ ((packed, aligned(1)))
+
+/* PHY Stuff */
+#define miim_end -2
+#define miim_read -1
+
+#define MIIMCFG_INIT_VALUE 0x00000003
+#define MIIMCFG_RESET 0x80000000
+
+#define MIIMIND_BUSY 0x00000001
+#define MIIMIND_NOTVALID 0x00000004
+
+#define MIIM_CONTROL 0x00
+#define MIIM_CONTROL_RESET 0x00009140
+#define MIIM_CONTROL_INIT 0x00001140
+#define MIIM_CONTROL_RESTART 0x00001340
+#define MIIM_ANEN 0x00001000
+
+#define MIIM_CR 0x00
+#define MIIM_CR_RST 0x00008000
+#define MIIM_CR_INIT 0x00001000
+
+#define MIIM_STATUS 0x1
+#define MIIM_STATUS_AN_DONE 0x00000020
+#define MIIM_STATUS_LINK 0x0004
+#define PHY_BMSR_AUTN_ABLE 0x0008
+#define PHY_BMSR_AUTN_COMP 0x0020
+
+#define MIIM_PHYIR1 0x2
+#define MIIM_PHYIR2 0x3
+
+#define MIIM_ANAR 0x4
+#define MIIM_ANAR_INIT 0x1e1
+
+#define MIIM_TBI_ANLPBPA 0x5
+#define MIIM_TBI_ANLPBPA_HALF 0x00000040
+#define MIIM_TBI_ANLPBPA_FULL 0x00000020
+
+#define MIIM_TBI_ANEX 0x6
+#define MIIM_TBI_ANEX_NP 0x00000004
+#define MIIM_TBI_ANEX_PRX 0x00000002
+
+#define MIIM_GBIT_CONTROL 0x9
+#define MIIM_GBIT_CONTROL_INIT 0xe00
+
+#define MIIM_EXT_PAGE_ACCESS 0x1f
+
+/* MII PHY REGISTERS */
+
+/* phy seed setup */
+#define AUTO 99
+#define _1000BASET 1000
+#define _100BASET 100
+#define _10BASET 10
+#define HALF 22
+#define FULL 44
+
+/* phy register offsets */
+#define PHY_BMCR 0x00
+#define PHY_BMSR 0x01
+#define PHY_PHYIDR1 0x02
+#define PHY_PHYIDR2 0x03
+#define PHY_ANAR 0x04
+#define PHY_ANLPAR 0x05
+#define PHY_ANER 0x06
+#define PHY_ANNPTR 0x07
+#define PHY_ANLPNP 0x08
+#define PHY_1000BTCR 0x09
+#define PHY_1000BTSR 0x0A
+#define PHY_EXSR 0x0F
+#define PHY_PHYSTS 0x10
+#define PHY_MIPSCR 0x11
+#define PHY_MIPGSR 0x12
+#define PHY_DCR 0x13
+#define PHY_FCSCR 0x14
+#define PHY_RECR 0x15
+#define PHY_PCSR 0x16
+#define PHY_LBR 0x17
+#define PHY_10BTSCR 0x18
+#define PHY_PHYCTRL 0x19
+
+/* PHY BMCR */
+#define PHY_BMCR_RESET 0x8000
+#define PHY_BMCR_LOOP 0x4000
+#define PHY_BMCR_100MB 0x2000
+#define PHY_BMCR_AUTON 0x1000
+#define PHY_BMCR_POWD 0x0800
+#define PHY_BMCR_ISO 0x0400
+#define PHY_BMCR_RST_NEG 0x0200
+#define PHY_BMCR_DPLX 0x0100
+#define PHY_BMCR_COL_TST 0x0080
+
+#define PHY_BMCR_SPEED_MASK 0x2040
+#define PHY_BMCR_1000_MBPS 0x0040
+#define PHY_BMCR_100_MBPS 0x2000
+#define PHY_BMCR_10_MBPS 0x0000
+
+/* phy BMSR */
+#define PHY_BMSR_100T4 0x8000
+#define PHY_BMSR_100TXF 0x4000
+#define PHY_BMSR_100TXH 0x2000
+#define PHY_BMSR_10TF 0x1000
+#define PHY_BMSR_10TH 0x0800
+#define PHY_BMSR_EXT_STAT 0x0100
+#define PHY_BMSR_PRE_SUP 0x0040
+#define PHY_BMSR_AUTN_COMP 0x0020
+#define PHY_BMSR_RF 0x0010
+#define PHY_BMSR_AUTN_ABLE 0x0008
+#define PHY_BMSR_LS 0x0004
+#define PHY_BMSR_JD 0x0002
+#define PHY_BMSR_EXT 0x0001
+
+/*phy ANLPAR */
+#define PHY_ANLPAR_NP 0x8000
+#define PHY_ANLPAR_ACK 0x4000
+#define PHY_ANLPAR_RF 0x2000
+#define PHY_ANLPAR_ASYMP 0x0800
+#define PHY_ANLPAR_PAUSE 0x0400
+#define PHY_ANLPAR_T4 0x0200
+#define PHY_ANLPAR_TXFD 0x0100
+#define PHY_ANLPAR_TX 0x0080
+#define PHY_ANLPAR_10FD 0x0040
+#define PHY_ANLPAR_10 0x0020
+#define PHY_ANLPAR_100 0x0380 /* we can run at 100 */
+/* phy ANLPAR 1000BASE-X */
+#define PHY_X_ANLPAR_NP 0x8000
+#define PHY_X_ANLPAR_ACK 0x4000
+#define PHY_X_ANLPAR_RF_MASK 0x3000
+#define PHY_X_ANLPAR_PAUSE_MASK 0x0180
+#define PHY_X_ANLPAR_HD 0x0040
+#define PHY_X_ANLPAR_FD 0x0020
+
+#define PHY_ANLPAR_PSB_MASK 0x001f
+#define PHY_ANLPAR_PSB_802_3 0x0001
+#define PHY_ANLPAR_PSB_802_9 0x0002
+
+/* phy 1000BTCR */
+#define PHY_1000BTCR_1000FD 0x0200
+#define PHY_1000BTCR_1000HD 0x0100
+
+/* phy 1000BTSR */
+#define PHY_1000BTSR_MSCF 0x8000
+#define PHY_1000BTSR_MSCR 0x4000
+#define PHY_1000BTSR_LRS 0x2000
+#define PHY_1000BTSR_RRS 0x1000
+#define PHY_1000BTSR_1000FD 0x0800
+#define PHY_1000BTSR_1000HD 0x0400
+
+/* phy EXSR */
+#define PHY_EXSR_1000XF 0x8000
+#define PHY_EXSR_1000XH 0x4000
+#define PHY_EXSR_1000TF 0x2000
+#define PHY_EXSR_1000TH 0x1000
+
+/* PHY_PHYCTRL */
+#define PHY_PHYCTRL_LED_CNFG1 0x0040
+#define PHY_PHYCTRL_LED_CNFG0 0x0020
+
+#define MIIM_READ_COMMAND 0x00000001
+
+/* struct phy_info: a structure which defines attributes for a PHY
+ * id will contain a number which represents the PHY. During
+ * startup, the driver will poll the PHY to find out what its
+ * UID--as defined by registers 2 and 3--is. The 32-bit result
+ * gotten from the PHY will be shifted right by "shift" bits to
+ * discard any bits which may change based on revision numbers
+ * unimportant to functionality
+ *
+ * The struct phy_cmd entries represent pointers to an arrays of
+ * commands which tell the driver what to do to the PHY.
+ */
+struct phy_info {
+ uint id;
+ char *name;
+ uint shift;
+ /* Called to configure the PHY, and modify the controller
+ * based on the results */
+ struct phy_cmd *config;
+
+ /* Called when starting up the controller */
+ struct phy_cmd *startup;
+
+ /* Called when bringing down the controller */
+ struct phy_cmd *shutdown;
+};
+
+/* SGDMA Stuff */
+#define ALT_SGDMA_STATUS_ERROR_MSK (0x00000001)
+#define ALT_SGDMA_STATUS_EOP_ENCOUNTERED_MSK (0x00000002)
+#define ALT_SGDMA_STATUS_DESC_COMPLETED_MSK (0x00000004)
+#define ALT_SGDMA_STATUS_CHAIN_COMPLETED_MSK (0x00000008)
+#define ALT_SGDMA_STATUS_BUSY_MSK (0x00000010)
+
+#define ALT_SGDMA_CONTROL_IE_ERROR_MSK (0x00000001)
+#define ALT_SGDMA_CONTROL_IE_EOP_ENCOUNTERED_MSK (0x00000002)
+#define ALT_SGDMA_CONTROL_IE_DESC_COMPLETED_MSK (0x00000004)
+#define ALT_SGDMA_CONTROL_IE_CHAIN_COMPLETED_MSK (0x00000008)
+#define ALT_SGDMA_CONTROL_IE_GLOBAL_MSK (0x00000010)
+#define ALT_SGDMA_CONTROL_RUN_MSK (0x00000020)
+#define ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK (0x00000040)
+#define ALT_SGDMA_CONTROL_IE_MAX_DESC_PROCESSED_MSK (0x00000080)
+#define ALT_SGDMA_CONTROL_MAX_DESC_PROCESSED_MSK (0x0000FF00)
+#define ALT_SGDMA_CONTROL_SOFTWARERESET_MSK (0x00010000)
+#define ALT_SGDMA_CONTROL_PARK_MSK (0x00020000)
+#define ALT_SGDMA_CONTROL_CLEAR_INTERRUPT_MSK (0x80000000)
+
+#define ALTERA_TSE_SGDMA_INTR_MASK (ALT_SGDMA_CONTROL_IE_CHAIN_COMPLETED_MSK \
+ | ALT_SGDMA_STATUS_DESC_COMPLETED_MSK \
+ | ALT_SGDMA_CONTROL_IE_GLOBAL_MSK)
+
+/*
+ * Descriptor control bit masks & offsets
+ *
+ * Note: The control byte physically occupies bits [31:24] in memory.
+ * The following bit-offsets are expressed relative to the LSB of
+ * the control register bitfield.
+ */
+#define ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK (0x00000001)
+#define ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK (0x00000002)
+#define ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK (0x00000004)
+#define ALT_SGDMA_DESCRIPTOR_CONTROL_ATLANTIC_CHANNEL_MSK (0x00000008)
+#define ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK (0x00000080)
+
+/*
+ * Descriptor status bit masks & offsets
+ *
+ * Note: The status byte physically occupies bits [23:16] in memory.
+ * The following bit-offsets are expressed relative to the LSB of
+ * the status register bitfield.
+ */
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_CRC_MSK (0x00000001)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_PARITY_MSK (0x00000002)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_OVERFLOW_MSK (0x00000004)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_SYNC_MSK (0x00000008)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_UEOP_MSK (0x00000010)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_MEOP_MSK (0x00000020)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_E_MSOP_MSK (0x00000040)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK (0x00000080)
+#define ALT_SGDMA_DESCRIPTOR_STATUS_ERROR_MSK (0x0000007F)
+
+/*
+ * The SGDMA controller buffer descriptor allocates
+ * 64 bits for each address. To support ANSI C, the
+ * struct implementing a descriptor places 32-bits
+ * of padding directly above each address; each pad must
+ * be cleared when initializing a descriptor.
+ */
+
+/*
+ * Buffer Descriptor data structure
+ *
+ */
+struct alt_sgdma_descriptor {
+ unsigned int *source; /* the address of data to be read. */
+ unsigned int source_pad;
+
+ unsigned int *destination; /* the address to write data */
+ unsigned int destination_pad;
+
+ unsigned int *next; /* the next descriptor in the list. */
+ unsigned int next_pad;
+
+ unsigned short bytes_to_transfer; /* the number of bytes to transfer */
+ unsigned char read_burst;
+ unsigned char write_burst;
+
+ unsigned short actual_bytes_transferred;/* bytes transferred by DMA */
+ unsigned char descriptor_status;
+ unsigned char descriptor_control;
+
+} __packed_1_;
+
+/* SG-DMA Control/Status Slave registers map */
+
+struct alt_sgdma_registers {
+ unsigned int status;
+ unsigned int status_pad[3];
+ unsigned int control;
+ unsigned int control_pad[3];
+ unsigned int next_descriptor_pointer;
+ unsigned int descriptor_pad[3];
+};
+
+/* TSE Stuff */
+#define ALTERA_TSE_CMD_TX_ENA_MSK (0x00000001)
+#define ALTERA_TSE_CMD_RX_ENA_MSK (0x00000002)
+#define ALTERA_TSE_CMD_XON_GEN_MSK (0x00000004)
+#define ALTERA_TSE_CMD_ETH_SPEED_MSK (0x00000008)
+#define ALTERA_TSE_CMD_PROMIS_EN_MSK (0x00000010)
+#define ALTERA_TSE_CMD_PAD_EN_MSK (0x00000020)
+#define ALTERA_TSE_CMD_CRC_FWD_MSK (0x00000040)
+#define ALTERA_TSE_CMD_PAUSE_FWD_MSK (0x00000080)
+#define ALTERA_TSE_CMD_PAUSE_IGNORE_MSK (0x00000100)
+#define ALTERA_TSE_CMD_TX_ADDR_INS_MSK (0x00000200)
+#define ALTERA_TSE_CMD_HD_ENA_MSK (0x00000400)
+#define ALTERA_TSE_CMD_EXCESS_COL_MSK (0x00000800)
+#define ALTERA_TSE_CMD_LATE_COL_MSK (0x00001000)
+#define ALTERA_TSE_CMD_SW_RESET_MSK (0x00002000)
+#define ALTERA_TSE_CMD_MHASH_SEL_MSK (0x00004000)
+#define ALTERA_TSE_CMD_LOOPBACK_MSK (0x00008000)
+/* Bits (18:16) = address select */
+#define ALTERA_TSE_CMD_TX_ADDR_SEL_MSK (0x00070000)
+#define ALTERA_TSE_CMD_MAGIC_ENA_MSK (0x00080000)
+#define ALTERA_TSE_CMD_SLEEP_MSK (0x00100000)
+#define ALTERA_TSE_CMD_WAKEUP_MSK (0x00200000)
+#define ALTERA_TSE_CMD_XOFF_GEN_MSK (0x00400000)
+#define ALTERA_TSE_CMD_CNTL_FRM_ENA_MSK (0x00800000)
+#define ALTERA_TSE_CMD_NO_LENGTH_CHECK_MSK (0x01000000)
+#define ALTERA_TSE_CMD_ENA_10_MSK (0x02000000)
+#define ALTERA_TSE_CMD_RX_ERR_DISC_MSK (0x04000000)
+/* Bits (30..27) reserved */
+#define ALTERA_TSE_CMD_CNT_RESET_MSK (0x80000000)
+
+#define ALTERA_TSE_TX_CMD_STAT_TX_SHIFT16 (0x00040000)
+#define ALTERA_TSE_TX_CMD_STAT_OMIT_CRC (0x00020000)
+
+#define ALTERA_TSE_RX_CMD_STAT_RX_SHIFT16 (0x02000000)
+
+#define ALT_TSE_SW_RESET_WATCHDOG_CNTR 10000
+#define ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR 90000000
+
+#define ALT_TSE_SW_RESET_WATCHDOG_TOUT 1 /* ms */
+#define ALT_TSE_SGDMA_BUSY_WATCHDOG_TOUT 5 /* ms */
+
+struct alt_tse_mdio {
+ unsigned int control; /*PHY device operation control register */
+ unsigned int status; /*PHY device operation status register */
+ unsigned int phy_id1; /*Bits 31:16 of PHY identifier. */
+ unsigned int phy_id2; /*Bits 15:0 of PHY identifier. */
+ unsigned int auto_negotiation_advertisement;
+ unsigned int remote_partner_base_page_ability;
+
+ unsigned int reg6;
+ unsigned int reg7;
+ unsigned int reg8;
+ unsigned int reg9;
+ unsigned int rega;
+ unsigned int regb;
+ unsigned int regc;
+ unsigned int regd;
+ unsigned int rege;
+ unsigned int regf;
+ unsigned int reg10;
+ unsigned int reg11;
+ unsigned int reg12;
+ unsigned int reg13;
+ unsigned int reg14;
+ unsigned int reg15;
+ unsigned int reg16;
+ unsigned int reg17;
+ unsigned int reg18;
+ unsigned int reg19;
+ unsigned int reg1a;
+ unsigned int reg1b;
+ unsigned int reg1c;
+ unsigned int reg1d;
+ unsigned int reg1e;
+ unsigned int reg1f;
+};
+
+/* MAC register Space */
+
+struct alt_tse_mac {
+ unsigned int megacore_revision;
+ unsigned int scratch_pad;
+ unsigned int command_config;
+ unsigned int mac_addr_0;
+ unsigned int mac_addr_1;
+ unsigned int max_frame_length;
+ unsigned int pause_quanta;
+ unsigned int rx_sel_empty_threshold;
+ unsigned int rx_sel_full_threshold;
+ unsigned int tx_sel_empty_threshold;
+ unsigned int tx_sel_full_threshold;
+ unsigned int rx_almost_empty_threshold;
+ unsigned int rx_almost_full_threshold;
+ unsigned int tx_almost_empty_threshold;
+ unsigned int tx_almost_full_threshold;
+ unsigned int mdio_phy0_addr;
+ unsigned int mdio_phy1_addr;
+
+ /* only if 100/1000 BaseX PCS, reserved otherwise */
+ unsigned int reservedx44[5];
+
+ unsigned int reg_read_access_status;
+ unsigned int min_tx_ipg_length;
+
+ /* IEEE 802.3 oEntity Managed Object Support */
+ unsigned int aMACID_1; /*The MAC addresses */
+ unsigned int aMACID_2;
+ unsigned int aFramesTransmittedOK;
+ unsigned int aFramesReceivedOK;
+ unsigned int aFramesCheckSequenceErrors;
+ unsigned int aAlignmentErrors;
+ unsigned int aOctetsTransmittedOK;
+ unsigned int aOctetsReceivedOK;
+
+ /* IEEE 802.3 oPausedEntity Managed Object Support */
+ unsigned int aTxPAUSEMACCtrlFrames;
+ unsigned int aRxPAUSEMACCtrlFrames;
+
+ /* IETF MIB (MIB-II) Object Support */
+ unsigned int ifInErrors;
+ unsigned int ifOutErrors;
+ unsigned int ifInUcastPkts;
+ unsigned int ifInMulticastPkts;
+ unsigned int ifInBroadcastPkts;
+ unsigned int ifOutDiscards;
+ unsigned int ifOutUcastPkts;
+ unsigned int ifOutMulticastPkts;
+ unsigned int ifOutBroadcastPkts;
+
+ /* IETF RMON MIB Object Support */
+ unsigned int etherStatsDropEvent;
+ unsigned int etherStatsOctets;
+ unsigned int etherStatsPkts;
+ unsigned int etherStatsUndersizePkts;
+ unsigned int etherStatsOversizePkts;
+ unsigned int etherStatsPkts64Octets;
+ unsigned int etherStatsPkts65to127Octets;
+ unsigned int etherStatsPkts128to255Octets;
+ unsigned int etherStatsPkts256to511Octets;
+ unsigned int etherStatsPkts512to1023Octets;
+ unsigned int etherStatsPkts1024to1518Octets;
+
+ unsigned int etherStatsPkts1519toXOctets;
+ unsigned int etherStatsJabbers;
+ unsigned int etherStatsFragments;
+
+ unsigned int reservedxE4;
+
+ /*FIFO control register. */
+ unsigned int tx_cmd_stat;
+ unsigned int rx_cmd_stat;
+
+ unsigned int ipaccTxConf;
+ unsigned int ipaccRxConf;
+ unsigned int ipaccRxStat;
+ unsigned int ipaccRxStatSum;
+
+ /*Multicast address resolution table */
+ unsigned int hash_table[64];
+
+ /*Registers 0 to 31 within PHY device 0/1 */
+ struct alt_tse_mdio mdio_phy0;
+ struct alt_tse_mdio mdio_phy1;
+
+ /*4 Supplemental MAC Addresses */
+ unsigned int supp_mac_addr_0_0;
+ unsigned int supp_mac_addr_0_1;
+ unsigned int supp_mac_addr_1_0;
+ unsigned int supp_mac_addr_1_1;
+ unsigned int supp_mac_addr_2_0;
+ unsigned int supp_mac_addr_2_1;
+ unsigned int supp_mac_addr_3_0;
+ unsigned int supp_mac_addr_3_1;
+
+ unsigned int reservedx320[56];
+};
+
+/* flags: TSE MII modes */
+/* GMII/MII = 0 */
+/* RGMII = 1 */
+/* RGMII_ID = 2 */
+/* RGMII_TXID = 3 */
+/* RGMII_RXID = 4 */
+/* SGMII = 5 */
+struct altera_tse_priv {
+ char devname[16];
+ struct alt_tse_mac *mac_dev;
+ struct alt_sgdma_registers *sgdma_rx;
+ struct alt_sgdma_registers *sgdma_tx;
+ unsigned int rx_sgdma_irq;
+ unsigned int tx_sgdma_irq;
+ unsigned int has_descriptor_mem;
+ unsigned int descriptor_mem_base;
+ unsigned int descriptor_mem_size;
+ struct alt_sgdma_descriptor *rx_desc;
+ struct alt_sgdma_descriptor *tx_desc;
+ struct phy_info *phyinfo;
+ unsigned int phyaddr;
+ unsigned int flags;
+ unsigned int link;
+ unsigned int duplexity;
+ unsigned int speed;
+ struct mii_device *miidev;
+};
+
+/* Phy stuff continued */
+/*
+ * struct phy_cmd: A command for reading or writing a PHY register
+ *
+ * mii_reg: The register to read or write
+ *
+ * mii_data: For writes, the value to put in the register.
+ * A value of -1 indicates this is a read.
+ *
+ * funct: A function pointer which is invoked for each command.
+ * For reads, this function will be passed the value read
+ * from the PHY, and process it.
+ * For writes, the result of this function will be written
+ * to the PHY register
+ */
+struct phy_cmd {
+ uint mii_reg;
+ uint mii_data;
+ uint(*funct) (uint mii_reg, struct altera_tse_priv *priv);
+};
+#endif /* _ALTERA_TSE_H_ */
--
1.7.0.4
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] Nios2: Add Altera TSE MAC driver
2011-04-03 21:45 [PATCH] Nios2: Add Altera TSE MAC driver franck.jullien
@ 2011-04-06 9:48 ` Sascha Hauer
0 siblings, 0 replies; 2+ messages in thread
From: Sascha Hauer @ 2011-04-06 9:48 UTC (permalink / raw)
To: franck.jullien; +Cc: barebox
Hi,
Several comments inline...
Sascha
On Sun, Apr 03, 2011 at 11:45:00PM +0200, franck.jullien@gmail.com wrote:
> +
> +static int tse_get_ethaddr(struct eth_device *edev, unsigned char *m)
> +{
> +/* If there is already a MAC address configured when barebox starts (??), use it */
> +#ifdef THERE_IS_A_DEFAULT_MAC_ADDR_IN_TSE
> + struct altera_tse_priv *priv = edev->priv;
> + struct alt_tse_mac *mac_dev = priv->mac_dev;
> +
> + m[5] = (readl(&mac_dev->mac_addr_1) >> 8) && 0xFF;
> + m[4] = (readl(&mac_dev->mac_addr_1)) && 0xFF;
> + m[3] = (readl(mac_dev->mac_addr_0) >> 24) && 0xFF;
> + m[2] = (readl(mac_dev->mac_addr_0) >> 16) && 0xFF;
> + m[1] = (readl(mac_dev->mac_addr_0) >> 8) && 0xFF;
> + m[0] = (readl(mac_dev->mac_addr_0)) && 0xFF;
> +
> + return 0;
> +#else
> + return -1;
> +#endif
> +}
This function should return the mac address from eeprom (if there is
one). Otherwise you can return the mac address programmed into the
controler, but should check this with is_valid_ether(). Hm,
is_valid_ether() should probably rather be called from the network
layer.
> +
> +static void tse_eth_halt(struct eth_device *edev)
> +{
> +
> +}
You should quiesce the DMA controller here. Otherwise there might be bad
surprises once Linux starts.
> +/* Phy init code */
> +static int init_phy(struct eth_device *edev)
> +{
> + struct altera_tse_priv *priv = edev->priv;
> + struct phy_info *curphy;
> +
> + /* Get the cmd structure corresponding to the attached
> + * PHY */
> + curphy = get_phy_info(edev);
> +
> + if (curphy == NULL) {
> + priv->phyinfo = NULL;
> + return 0;
> + } else
> + debug("%s found\n", curphy->name);
> +
> + priv->phyinfo = curphy;
> +
> + phy_run_commands(priv, priv->phyinfo->config);
> +
> + return 1;
> +}
Is this phy initialization necessary? The phy support in barebox should
initialize the phy correctly already.
Sascha
> +
> + miidev->read = tse_phy_read;
> + miidev->write = tse_phy_write;
> +#ifndef NIOS_SOPC_PHY_ADDR
> + miidev->address = -1;
> +#else
> + miidev->address = NIOS_SOPC_PHY_ADDR;
> +#endif
This should be passed with platform data instead of using ifdefs.
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