Renesas SH7763 has 2 channel Ethernet device.
This is 10/100/1000 Base support.
But this patch check 10/100 Base only.
Signed-off-by: Nobuhiro Iwamatsu <[EMAIL PROTECTED]>
---
drivers/net/Makefile | 1 +
drivers/net/sh_eth.c | 599 ++++++++++++++++++++++++++++++++++++++++++++++++++
drivers/net/sh_eth.h | 195 ++++++++++++++++
3 files changed, 795 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/sh_eth.c
create mode 100644 drivers/net/sh_eth.h
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 5b031c9..e2a6b35 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -66,6 +66,7 @@ COBJS-y += uli526x.o
COBJS-y += vsc7385.o
COBJS-$(CONFIG_XILINX_EMAC) += xilinx_emac.o
COBJS-$(CONFIG_XILINX_EMACLITE) += xilinx_emaclite.o
+COBJS-$(CONFIG_SH_ETHER) += sh_eth.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
new file mode 100644
index 0000000..869a8f0
--- /dev/null
+++ b/drivers/net/sh_eth.c
@@ -0,0 +1,599 @@
+/*
+ * sh_eth.c - Driver for Renesas SH7763's ethernet controler.
+ *
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ * Copyright (c) 2008 Nobuhiro Iwamatsu
+ * Copyright (c) 2007 Carlos Munoz <[EMAIL PROTECTED]>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <malloc.h>
+#include <net.h>
+#include <asm/errno.h>
+
+#include "sh_eth.h"
+
+#ifndef CONFIG_SH_ETHER_USE_PORT
+# error "Please define CONFIG_SH_ETHER_USE_PORT"
+#endif
+#ifndef CONFIG_SH_ETHER_PHY_ADDR
+# error "Please define CONFIG_SH_ETHER_PHY_ADDR"
+#endif
+
+extern int eth_init(bd_t *bd);
+extern void eth_halt(void);
+extern int eth_rx(void);
+extern int eth_send(volatile void *packet, int length);
+
+static struct dev_info_s *dev;
+
+/*
+ * Bits are written to the PHY serially using the
+ * PIR register, just like a bit banger.
+ */
+static void sh_eth_mii_write_phy_bits(int port, u32 val, int len)
+{
+ int i;
+ u32 pir;
+
+ /* Bit positions is 1 less than the number of bits */
+ for (i = len - 1; i >= 0; i--) {
+ /* Write direction, bit to write, clock is low */
+ pir = 2 | ((val & 1 << i) ? 1 << 2 : 0);
+ OUT32(PIR(port), pir);
+ PHY_DELAY;
+ /* Write direction, bit to write, clock is high */
+ pir = 3 | ((val & 1 << i) ? 1 << 2 : 0);
+ OUT32(PIR(port), pir);
+ PHY_DELAY;
+ /* Write direction, bit to write, clock is low */
+ pir = 2 | ((val & 1 << i) ? 1 << 2 : 0);
+ OUT32(PIR(port), pir);
+ PHY_DELAY;
+ }
+}
+
+static void sh_eth_mii_bus_release(int port)
+{
+ /* Read direction, clock is low */
+ OUT32(PIR(port), 0);
+ PHY_DELAY;
+ /* Read direction, clock is high */
+ OUT32(PIR(port), 1);
+ PHY_DELAY;
+ /* Read direction, clock is low */
+ OUT32(PIR(port), 0);
+ PHY_DELAY;
+}
+
+static void sh_eth_mii_ind_bus_release(int port)
+{
+ /* Read direction, clock is low */
+ OUT32(PIR(port), 0);
+ PHY_DELAY;
+}
+
+static int sh_eth_mii_read_phy_bits(int port, u32 * val, int len)
+{
+ int i;
+ u32 pir;
+
+ *val = 0;
+ for (i = len - 1; i >= 0; i--) {
+ /* Read direction, clock is high */
+ OUT32(PIR(port), 1);
+ PHY_DELAY;
+ /* Read bit */
+ pir = IN32(PIR(port));
+ *val |= (pir & 8) ? 1 << i : 0;
+ /* Read direction, clock is low */
+ OUT32(PIR(port), 0);
+ PHY_DELAY;
+ }
+
+ return 0;
+}
+
+/* To read a phy register, mii managements frames are sent to the phy.
+ The frames look like this:
+ pre (32 bits): 0xffff ffff
+ st (2 bits): 01
+ op (2bits): 10: read 01: write
+ phyad (5 bits): xxxxx
+ regad (5 bits): xxxxx
+ ta (Bus release):
+ data (16 bits): read data */
+static u32 sh_eth_mii_read_phy_reg(int port, u8 phy_addr, int reg)
+{
+ u32 val;
+
+ /* Sent mii management frame */
+ /* pre */
+ sh_eth_mii_write_phy_bits(port, 0xffffffff, 32);
+ /* st (start of frame) */
+ sh_eth_mii_write_phy_bits(port, 0x1, 2);
+ /* op (code) */
+ sh_eth_mii_write_phy_bits(port, 0x2, 2);
+ /* phy address */
+ sh_eth_mii_write_phy_bits(port, phy_addr, 5);
+ /* Register to read */
+ sh_eth_mii_write_phy_bits(port, reg, 5);
+
+ /* Bus release */
+ sh_eth_mii_bus_release(port);
+
+ /* Read register */
+ sh_eth_mii_read_phy_bits(port, &val, 16);
+
+ return val;
+}
+
+/* To write a phy register, mii managements frames are sent to the phy.
+ The frames look like this:
+ pre (32 bits): 0xffff ffff
+ st (2 bits): 01
+ op (2bits): 10: read 01: write
+ phyad (5 bits): xxxxx
+ regad (5 bits): xxxxx
+ ta (2 bits): 10
+ data (16 bits): write data
+ idle (Independent bus release) */
+static void sh_eth_mii_write_phy_reg(int port, u8 phy_addr, int reg, u16 val)
+{
+ /* Sent mii management frame */
+ /* pre */
+ sh_eth_mii_write_phy_bits(port, 0xffffffff, 32);
+ /* st (start of frame) */
+ sh_eth_mii_write_phy_bits(port, 0x1, 2);
+ /* op (code) */
+ sh_eth_mii_write_phy_bits(port, 0x1, 2);
+ /* phy address */
+ sh_eth_mii_write_phy_bits(port, phy_addr, 5);
+ /* Register to read */
+ sh_eth_mii_write_phy_bits(port, reg, 5);
+ /* ta */
+ sh_eth_mii_write_phy_bits(port, 0x2, 2);
+ /* Write register data */
+ sh_eth_mii_write_phy_bits(port, val, 16);
+
+ /* Independent bus release */
+ sh_eth_mii_ind_bus_release(port);
+}
+
+void eth_halt(void)
+{
+}
+
+int eth_send(volatile void *packet, int len)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+ int timeout;
+ int rc = 0;
+
+ if (!packet || len > 0xffff) {
+ printf("eth_send: Invalid argument\n");
+ return -EINVAL;
+ }
+
+ /* packet must be a 4 byte boundary */
+ if ((int)packet & (4 - 1)) {
+ printf("eth_send: packet not 4 byte alligned\n");
+ return -EFAULT;
+ }
+
+ /* Update tx descriptor */
+ port_info->tx_desc_cur->td2 = ADDR_TO_PHY(packet);
+ port_info->tx_desc_cur->td1 = len << 16;
+ /* Must preserve the end of descriptor list indication */
+ if (port_info->tx_desc_cur->td0 & TDLE)
+ port_info->tx_desc_cur->td0 = TACT | TFP | TDLE;
+ else
+ port_info->tx_desc_cur->td0 = TACT | TFP;
+
+ /* Restart the transmitter if disabled */
+ if (!(IN32(EDTRR(port)) & 0x3))
+ OUT32(EDTRR(port), 0x3);
+
+ /* Wait until packet is transmitted */
+ timeout = 1000;
+ while (port_info->tx_desc_cur->td0 & TACT && timeout--)
+ udelay(100);
+
+ if (timeout < 0) {
+ printf("eth_send: transmit timeout\n");
+ rc = -1;
+ goto err;
+ }
+
+ err:
+ port_info->tx_desc_cur++;
+ if (port_info->tx_desc_cur >= port_info->tx_desc_base + NUM_TX_DESC)
+ port_info->tx_desc_cur = port_info->tx_desc_base;
+
+ return rc;
+}
+
+int eth_rx(void)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+ int len = 0;
+ volatile u8 *packet;
+
+ /* Check if the rx descriptor is ready */
+ if (!(port_info->rx_desc_cur->rd0 & RACT)) {
+ /* Check for errors */
+ if (!(port_info->rx_desc_cur->rd0 & RFE)) {
+ len = port_info->rx_desc_cur->rd1 & 0xffff;
+ packet = (volatile u8 *)
+ ADDR_TO_P2(port_info->rx_desc_cur->rd2);
+ NetReceive(packet, len);
+ }
+
+ /* Make current descriptor available again */
+ if (port_info->rx_desc_cur->rd0 & RDLE)
+ port_info->rx_desc_cur->rd0 = RACT | RDLE;
+ else
+ port_info->rx_desc_cur->rd0 = RACT;
+
+ /* Point to the next descriptor */
+ port_info->rx_desc_cur++;
+ if (port_info->rx_desc_cur >=
+ port_info->rx_desc_base + NUM_RX_DESC)
+ port_info->rx_desc_cur = port_info->rx_desc_base;
+ }
+
+ /* Restart the receiver if disabled */
+ if (!(IN32(EDRRR(port)) & 0x1))
+ OUT32(EDRRR(port), 0x1);
+
+ return len;
+}
+
+static int sh_eth_reset(struct dev_info_s *dev)
+{
+ int port = dev->port;
+ int i;
+
+ /* Start e-dmac transmitter and receiver */
+ OUT32(EDSR(port), 0x3);
+
+ /* Perform a software reset and wait for it to complete */
+ OUT32(EDMR(port), 0x3);
+ for (i = 0; i < 1000; i++) {
+ if (!(IN32(EDMR(port)) & 0x3))
+ break;
+
+ udelay(1000);
+ }
+
+ if (i == 100) {
+ printf("Error: Software reset timeout\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int sh_eth_tx_desc_init(struct dev_info_s *dev)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+ u32 tmp_addr;
+ struct tx_desc_s *cur_tx_desc;
+ int i;
+
+ /* Allocate tx descriptors. They must be TX_DESC_SIZE bytes
+ aligned */
+ if (!(port_info->tx_desc_malloc = malloc(NUM_TX_DESC *
+ sizeof(struct tx_desc_s) +
+ TX_DESC_SIZE - 1))) {
+ printf("Error: malloc failed\n");
+ return -ENOMEM;
+ }
+ tmp_addr = (u32) (((int)port_info->tx_desc_malloc + TX_DESC_SIZE - 1) &
+ ~(TX_DESC_SIZE - 1));
+ /* Make sure we use a P2 address (non-cacheable) */
+ port_info->tx_desc_base = (struct tx_desc_s *)ADDR_TO_P2(tmp_addr);
+
+ port_info->tx_desc_cur = port_info->tx_desc_base;
+
+ /* Initialize all descriptors */
+ for (cur_tx_desc = port_info->tx_desc_base, i = 0; i < NUM_TX_DESC;
+ cur_tx_desc++, i++) {
+ cur_tx_desc->td0 = 0;
+ cur_tx_desc->td1 = 0;
+ cur_tx_desc->td2 = 0;
+ }
+
+ /* Mark the end of the descriptors */
+ cur_tx_desc--;
+ cur_tx_desc->td0 |= TDLE;
+
+ /* Point the controller to the tx descriptor list. Must use physical
+ addresses */
+ OUT32(TDLAR(port), ADDR_TO_PHY(port_info->tx_desc_base));
+ OUT32(TDFAR(port), ADDR_TO_PHY(port_info->tx_desc_base));
+ OUT32(TDFXR(port), ADDR_TO_PHY(cur_tx_desc));
+ OUT32(TDFFR(port), 0x0000001);
+
+ return 0;
+}
+
+static int sh_eth_rx_desc_init(struct dev_info_s *dev)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+ u32 tmp_addr;
+ struct rx_desc_s *cur_rx_desc;
+ u8 *rx_buf;
+ int i;
+
+ /* Allocate rx descriptors. They must be RX_DESC_SIZE bytes
+ aligned */
+ if (!(port_info->rx_desc_malloc = malloc(NUM_RX_DESC *
+ sizeof(struct rx_desc_s) +
+ RX_DESC_SIZE - 1))) {
+ printf("Error: malloc failed\n");
+ return -ENOMEM;
+ }
+ tmp_addr = (u32) (((int)port_info->rx_desc_malloc + RX_DESC_SIZE - 1) &
+ ~(RX_DESC_SIZE - 1));
+ /* Make sure we use a P2 address (non-cacheable) */
+ port_info->rx_desc_base = (struct rx_desc_s *)ADDR_TO_P2(tmp_addr);
+
+ port_info->rx_desc_cur = port_info->rx_desc_base;
+
+ /* Allocate rx data buffers. They must be 32 bytes aligned and in
+ P2 area */
+ if (!(port_info->rx_buf_malloc = malloc(NUM_RX_DESC * MAX_BUF_SIZE +
+ 31))) {
+ printf("Error: malloc failed\n");
+ free(port_info->rx_desc_malloc);
+ port_info->rx_desc_malloc = NULL;
+ return -ENOMEM;
+ }
+ tmp_addr = (u32) (((int)port_info->rx_buf_malloc + (32 - 1)) &
+ ~(32 - 1));
+ port_info->rx_buf_base = (u8 *) ADDR_TO_P2(tmp_addr);
+
+ /* Initialize all descriptors */
+ for (cur_rx_desc = port_info->rx_desc_base,
+ rx_buf = port_info->rx_buf_base, i = 0;
+ i < NUM_RX_DESC; cur_rx_desc++, rx_buf += MAX_BUF_SIZE, i++) {
+ cur_rx_desc->rd0 = RACT;
+ cur_rx_desc->rd1 = MAX_BUF_SIZE << 16;
+ cur_rx_desc->rd2 = (u32) ADDR_TO_PHY(rx_buf);
+ }
+
+ /* Mark the end of the descriptors */
+ cur_rx_desc--;
+ cur_rx_desc->rd0 |= RDLE;
+
+ /* Point the controller to the rx descriptor list */
+ OUT32(RDLAR(port), ADDR_TO_PHY(port_info->rx_desc_base));
+ OUT32(RDFAR(port), ADDR_TO_PHY(port_info->rx_desc_base));
+ OUT32(RDFXR(port), ADDR_TO_PHY(cur_rx_desc));
+ OUT32(RDFFR(port), 0x00000001);
+
+ return 0;
+}
+
+static void sh_eth_desc_free(struct dev_info_s *dev)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+
+ if (port_info->tx_desc_malloc) {
+ free(port_info->tx_desc_malloc);
+ port_info->tx_desc_malloc = NULL;
+ }
+
+ if (port_info->rx_desc_malloc) {
+ free(port_info->rx_desc_malloc);
+ port_info->rx_desc_malloc = NULL;
+ }
+
+ if (port_info->rx_buf_malloc) {
+ free(port_info->rx_buf_malloc);
+ port_info->rx_buf_malloc = NULL;
+ }
+}
+
+static int sh_eth_desc_init(struct dev_info_s *dev)
+{
+ int rc;
+
+ if ((rc = sh_eth_tx_desc_init(dev)) || (rc = sh_eth_rx_desc_init(dev)))
{
+ sh_eth_desc_free(dev);
+ return rc;
+ }
+
+ return 0;
+}
+
+static int sh_eth_phy_config(struct dev_info_s *dev)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+ int timeout;
+ u32 val;
+
+ /* Reset phy */
+ sh_eth_mii_write_phy_reg(port, port_info->phy_addr, 0, 0x8000);
+ timeout = 10;
+ while (timeout--) {
+ val = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, 0);
+ if (!(val & 0x8000))
+ break;
+ udelay(50000);
+ }
+ if (timeout < 0) {
+ printf("sh_eth_phy_config() phy reset timeout\n");
+ return -1;
+ }
+
+ /* Advertise 100/10 baseT full/half duplex */
+ sh_eth_mii_write_phy_reg(port, port_info->phy_addr, 4, 0x01e1);
+
+ /* Autonegotiation, normal operation, full duplex, enable tx */
+ sh_eth_mii_write_phy_reg(port, port_info->phy_addr, 0, 0x1200);
+
+ /* Wait for autonegotiation to complete */
+ timeout = 100;
+ while (timeout--) {
+ val = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, 1);
+ if (val & 0x0020)
+ break;
+ udelay(50000);
+ }
+ if (timeout < 0) {
+ printf("sh_eth_phy_config() phy auto-negotiation failed\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int sh_eth_config(struct dev_info_s *dev, bd_t * bd)
+{
+ int port = dev->port;
+ struct port_info_s *port_info = &dev->port_info[port];
+ u32 val;
+ u32 phy_status;
+ int rc;
+
+ /* Configure e-dmac registers */
+ OUT32(EDMR(port), (IN32(EDMR(port)) & ~0x00000030) | 0x00000040);
+ OUT32(EESIPR(port), 0);
+ OUT32(TRSCER(port), 0);
+ OUT32(TFTR(port), 0);
+ OUT32(FDR(port), 0x0000071f);
+ OUT32(RMCR(port), 1);
+ OUT32(RPADIR(port), 0);
+ OUT32(FCFTR(port), 0x00170007);
+
+ /* Configure e-mac registers */
+ OUT32(ECSIPR(port), 0);
+
+ val = bd->bi_enetaddr[0] << 24 | bd->bi_enetaddr[1] << 16 |
+ bd->bi_enetaddr[2] << 8 | bd->bi_enetaddr[3];
+ OUT32(MAHR(port), val);
+
+ val = bd->bi_enetaddr[4] << 8 | bd->bi_enetaddr[5];
+ OUT32(MALR(port), val);
+
+ OUT32(RFLR(port), 0x000005ee);
+ OUT32(PIPR(port), 0);
+ OUT32(APR(port), 4);
+ OUT32(MPR(port), 6);
+ OUT32(TPAUSER(port), 6);
+
+ /* Configure phy */
+ if ((rc = sh_eth_phy_config(dev)))
+ return rc;
+
+ /* Read phy status to finish configuring the e-mac */
+ phy_status = sh_eth_mii_read_phy_reg(dev->port,
+ dev->port_info[dev->port].phy_addr,
+ 1);
+
+ /* Set the transfer speed */
+ if (phy_status & 0x6000) {
+ printf("100Base/");
+ OUT32(GECMR(port), 0x4);
+ } else {
+ printf("10Base/");
+ OUT32(GECMR(port), 0x0);
+ }
+ /* Check if full duplex mode is supported by the phy */
+ if (phy_status & 0x5000) {
+ printf("Full\n");
+ OUT32(ECMR(port), 0x041f2062);
+ } else {
+ printf("Half\n");
+ OUT32(ECMR(port), 0x041f2060);
+ }
+ return 0;
+}
+
+static int sh_eth_start(struct dev_info_s *dev)
+{
+ int port = dev->port;
+
+ /*
+ * Enable the e-dmac receiver only. The transmitter will be enabled when
+ * we have something to transmit
+ */
+ OUT32(EDRRR(port), 0x1);
+
+ return 0;
+}
+
+static int sh_eth_get_mac(bd_t *bd)
+{
+ char *s, *e;
+ int i;
+
+ s = getenv("ethaddr");
+ if (s != NULL) {
+ for (i = 0; i < 6; ++i) {
+ bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
+ if (s)
+ s = (*e) ? e + 1 : e;
+ }
+ } else {
+ puts("Please set MAC address\n");
+ }
+ return 0;
+}
+
+int eth_init(bd_t * bd)
+{
+ int rc;
+
+ /* Allocate main device information structure */
+ if (!(dev = malloc(sizeof(*dev)))) {
+ printf("eth_init: malloc failed\n");
+ return -ENOMEM;
+ }
+
+ memset(dev, 0, sizeof(*dev));
+
+ dev->port = CONFIG_SH_ETHER_USE_PORT;
+ dev->port_info[dev->port].phy_addr = CONFIG_SH_ETHER_PHY_ADDR;
+
+ sh_eth_get_mac(bd);
+
+ if ((rc = sh_eth_reset(dev)) || (rc = sh_eth_desc_init(dev)))
+ goto err;
+
+ if ((rc = sh_eth_config(dev, bd)) || (rc = sh_eth_start(dev)))
+ goto err_desc;
+
+ return 0;
+
+err_desc:
+ sh_eth_desc_free(dev);
+err:
+ free(dev);
+ printf("eth_init: Failed\n");
+ return rc;
+
+}
diff --git a/drivers/net/sh_eth.h b/drivers/net/sh_eth.h
new file mode 100644
index 0000000..12a4528
--- /dev/null
+++ b/drivers/net/sh_eth.h
@@ -0,0 +1,195 @@
+/*
+ * gether.h - Driver for Renesas SH7763's gigabit ethernet controler.
+ *
+ * Copyright (c) 2007 Carlos Munoz <[EMAIL PROTECTED]>
+ * Copyright (c) 2008 Nobuhiro Iwamatsu
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <asm/types.h>
+
+#define SHETHER_NAME "sh_eth"
+
+/* Malloc returns addresses in the P1 area (cacheable). However we need to
+ use area P2 (non-cacheable) */
+#define ADDR_TO_P2(addr) ((((int)(addr) & ~0xe0000000) | 0xa0000000))
+
+/* The ethernet controller needs to use physical addresses */
+#define ADDR_TO_PHY(addr) ((int)(addr) & ~0xe0000000)
+
+/* Number of supported ports */
+#define MAX_PORT_NUM 2
+
+/* Buffers must be big enough to hold the largest ethernet frame. Also, rx
+ buffers must be a multiple of 32 bytes */
+#define MAX_BUF_SIZE (48 * 32)
+
+/* The number of tx descriptors must be large enough to point to 5 or more
+ frames. If each frame uses 2 descriptors, at least 10 descriptors are
needed.
+ We use one descriptor per frame */
+#define NUM_TX_DESC 8
+
+/* The size of the tx descriptor is determined by how much padding is used.
+ 4, 20, or 52 bytes of padding can be used */
+#define TX_DESC_PADDING 4
+#define TX_DESC_SIZE (12 + TX_DESC_PADDING)
+
+/* Tx descriptor. We always use 4 bytes of padding */
+struct tx_desc_s {
+ volatile u32 td0;
+ u32 td1;
+ u32 td2; /* Buffer start */
+ u32 padding;
+};
+
+/* TD0 */
+#define TACT (0x1 << 31) /* Valid/invalid */
+#define TDLE (0x1 << 30) /* List end */
+#define TFP (0x3 << 28) /* Frame position */
+#define TFP_END (0x1 << 28) /* End of frame */
+#define TFP_START (0x2 << 28) /* Start of frame */
+#define TFE (0x1 << 27) /* Error occurrence */
+#define TWBI (0x1 << 26) /* Write-back completion int */
+#define TFS (0xfff << 0) /* Frame status */
+#define TFS_UNFLW (0x1 << 9) /* Underflow */
+#define TFS_ABORT (0x1 << 8) /* Abort */
+
+/* TD1 */
+#define TDL (0xffff << 16) /* Buffer data length */
+
+/* There is no limitation in the number of rx descriptors */
+#define NUM_RX_DESC 8
+
+/* The size of the rx descriptor is determined by how much padding is used.
+ 4, 20, or 52 bytes of padding can be used */
+#define RX_DESC_PADDING 4
+#define RX_DESC_SIZE (12 + RX_DESC_PADDING)
+
+/* Rx descriptor. We always use 4 bytes of padding */
+struct rx_desc_s {
+ volatile u32 rd0;
+ volatile u32 rd1;
+ u32 rd2; /* Buffer start */
+ u32 padding;
+};
+
+/* RD0 */
+#define RACT (0x1 << 31) /* Valid/invalid */
+#define RDLE (0x1 << 30) /* List end */
+#define RFP (0x3 << 28) /* Frame position */
+#define RFP_END (0x1 << 28) /* End of frame */
+#define RFP_START (0x2 << 28) /* Start of frame */
+#define RFE (0x1 << 27) /* Error occurrence */
+#define PV (0x1 << 26) /* Padding Insertion */
+#define RFS (0xfff << 0) /* Frame status */
+#define RFS_OVFLW (0x1 << 9) /* Overflow */
+#define RFS_ABORT (0x1 << 8) /* Abort */
+#define RFS_MCAST (0x1 << 7) /* Multicast Address */
+#define RFS_CEXT (0x1 << 6) /* Carrier ext error */
+#define RFS_CELOSS (0x1 << 5) /* Carrier ext loss */
+#define RFS_RBF (0x1 << 4) /* Residual-bit frame error */
+#define RFS_LONG (0x1 << 3) /* Long frame */
+#define RFS_SHORT (0x1 << 2) /* Short frame */
+#define RFS_PHY (0x1 << 1) /* PHY rx error */
+#define RFS_CRC (0x1 << 0) /* CRC error */
+
+/* RD1 */
+#define RBL (0xffff << 16) /* Buffer length */
+#define RDL (0xffff << 0) /* Buffer data length */
+
+struct port_info_s {
+ struct tx_desc_s *tx_desc_malloc;
+ struct tx_desc_s *tx_desc_base;
+ struct tx_desc_s *tx_desc_cur;
+ struct rx_desc_s *rx_desc_malloc;
+ struct rx_desc_s *rx_desc_base;
+ struct rx_desc_s *rx_desc_cur;
+ u8 *rx_buf_malloc;
+ u8 *rx_buf_base;
+ u8 mac_addr[6];
+ u8 phy_addr;
+};
+
+struct dev_info_s {
+ int port;
+ struct port_info_s port_info[MAX_PORT_NUM];
+};
+
+#define IN16(reg) (*(u16 *)(reg))
+#define IN32(reg) (*(u32 *)(reg))
+#define OUT16(reg, val) (*(u16 *)(reg) = (val))
+#define OUT32(reg, val) (*(u32 *)(reg) = (val))
+
+#define PDCR 0xffef0006
+#define PECR 0xffef0008
+#define PFCR 0xffef000a
+#define PGCR 0xffef000c
+#define PHCR 0xffef000e
+#define PJCR 0xffef0012
+#define PKCR 0xffef0014
+#define PLCR 0xffef0016
+#define PMCR 0xffef0018
+#define PSEL1 0xffef0072
+#define PSEL2 0xffef0074
+#define PSEL3 0xffef0076
+
+#define BASE_IO_ADDR 0xfee00000
+
+#define EDSR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0000)
+
+#define TDLAR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0010)
+#define TDFAR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0014)
+#define TDFXR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0018)
+#define TDFFR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x001c)
+
+#define RDLAR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0030)
+#define RDFAR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0034)
+#define RDFXR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0038)
+#define RDFFR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x003c)
+
+#define EDMR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0400)
+#define EDTRR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0408)
+#define EDRRR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0410)
+#define EESR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0428)
+#define EESIPR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0430)
+#define TRSCER(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0438)
+#define TFTR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0448)
+#define FDR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0450)
+#define RMCR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0458)
+#define RPADIR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0460)
+#define FCFTR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0468)
+#define ECMR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0500)
+#define RFLR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0508)
+#define ECSIPR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0518)
+#define PIR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0520)
+#define PIPR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x052c)
+#define APR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0554)
+#define MPR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0558)
+#define TPAUSER(port) (BASE_IO_ADDR + 0x800 * (port) + 0x0564)
+#define GECMR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x05b0)
+#define MALR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x05c8)
+#define MAHR(port) (BASE_IO_ADDR + 0x800 * (port) + 0x05c0)
+
+/* Bit values for EESR */
+#define EESR_CERF (0x1 << 0)
+#define EESR_PRE (0x1 << 1)
+#define EESR_RTSF (0x1 << 2)
+#define EESR_RTLF (0x1 << 3)
+#define EESR_RFOF (0x1 << 16)
+#define EESR_FR (1 << 18)
+
+/* PHY values */
+#define PHY_DELAY udelay(1)
--
1.5.5.1
-------------------------------------------------------------------------
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