hak5
/
openwrt
mirror of https://github.com/hak5/openwrt.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
openwrt/package/uboot-ar71xx/files/drivers/net/ag71xx.c

810 lines
19 KiB
C
Raw Blame History

/*
* Atheros AR71xx built-in ethernet mac driver
*
* Copyright (C) 2010 Michael Kurz <michi.kurz@googlemail.com>
* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Based on Atheros' AG7100 driver
*
* 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.
*/
#include <common.h>
#include <malloc.h>
#include <net.h>
#include <miiphy.h>
#include <asm/ar71xx.h>
#include "ag71xx.h"
#ifdef AG71XX_DEBUG
#define DBG(fmt,args...) printf(fmt ,##args)
#else
#define DBG(fmt,args...)
#endif
static struct ag71xx agtable[] = {
{
.mac_base = KSEG1ADDR(AR71XX_GE0_BASE),
.mii_ctrl = KSEG1ADDR(AR71XX_MII_BASE + MII_REG_MII0_CTRL),
.mii_if = CONFIG_AG71XX_MII0_IIF,
} , {
.mac_base = KSEG1ADDR(AR71XX_GE1_BASE),
.mii_ctrl = KSEG1ADDR(AR71XX_MII_BASE + MII_REG_MII1_CTRL),
.mii_if = CONFIG_AG71XX_MII1_IIF,
}
};
static int ag71xx_ring_alloc(struct ag71xx_ring *ring, unsigned int size)
{
int err;
int i;
int rsize;
ring->desc_size = sizeof(struct ag71xx_desc);
if (ring->desc_size % (CONFIG_SYS_CACHELINE_SIZE)) {
rsize = roundup(ring->desc_size, CONFIG_SYS_CACHELINE_SIZE);
DBG("ag71xx: ring %p, desc size %u rounded to %u\n",
ring, ring->desc_size,
rsize);
ring->desc_size = rsize;
}
ring->descs_cpu = (u8 *) malloc((size * ring->desc_size)
+ CONFIG_SYS_CACHELINE_SIZE - 1);
if (!ring->descs_cpu) {
err = -1;
goto err;
}
ring->descs_cpu = (u8 *) UNCACHED_SDRAM((((u32) ring->descs_cpu +
CONFIG_SYS_CACHELINE_SIZE - 1) & ~(CONFIG_SYS_CACHELINE_SIZE - 1)));
ring->descs_dma = (u8 *) virt_to_phys(ring->descs_cpu);
ring->size = size;
ring->buf = malloc(size * sizeof(*ring->buf));
if (!ring->buf) {
err = -1;
goto err;
}
memset(ring->buf, 0, size * sizeof(*ring->buf));
for (i = 0; i < size; i++) {
ring->buf[i].desc =
(struct ag71xx_desc *)&ring->descs_cpu[i * ring->desc_size];
DBG("ag71xx: ring %p, desc %d at %p\n",
ring, i, ring->buf[i].desc);
}
flush_cache( (u32) ring->buf, size * sizeof(*ring->buf));
return 0;
err:
return err;
}
static void ag71xx_ring_tx_init(struct ag71xx *ag)
{
struct ag71xx_ring *ring = &ag->tx_ring;
int i;
for (i = 0; i < AG71XX_TX_RING_SIZE; i++) {
ring->buf[i].desc->next = (u32) virt_to_phys((ring->descs_dma +
ring->desc_size * ((i + 1) % AG71XX_TX_RING_SIZE)));
ring->buf[i].desc->ctrl = DESC_EMPTY;
ring->buf[i].skb = NULL;
}
ring->curr = 0;
}
static void ag71xx_ring_rx_clean(struct ag71xx *ag)
{
struct ag71xx_ring *ring = &ag->rx_ring;
int i;
if (!ring->buf)
return;
for (i = 0; i < AG71XX_RX_RING_SIZE; i++) {
ring->buf[i].desc->data = (u32) virt_to_phys(NetRxPackets[i]);
flush_cache((u32) NetRxPackets[i], PKTSIZE_ALIGN);
ring->buf[i].desc->ctrl = DESC_EMPTY;
}
ring->curr = 0;
}
static int ag71xx_ring_rx_init(struct ag71xx *ag)
{
struct ag71xx_ring *ring = &ag->rx_ring;
unsigned int i;
for (i = 0; i < AG71XX_RX_RING_SIZE; i++) {
ring->buf[i].desc->next = (u32) virt_to_phys((ring->descs_dma +
ring->desc_size * ((i + 1) % AG71XX_RX_RING_SIZE)));
DBG("ag71xx: RX desc at %p, next is %08x\n",
ring->buf[i].desc,
ring->buf[i].desc->next);
}
for (i = 0; i < AG71XX_RX_RING_SIZE; i++) {
ring->buf[i].desc->data = (u32) virt_to_phys(NetRxPackets[i]);
ring->buf[i].desc->ctrl = DESC_EMPTY;
}
ring->curr = 0;
return 0;
}
static int ag71xx_rings_init(struct ag71xx *ag)
{
int ret;
ret = ag71xx_ring_alloc(&ag->tx_ring, AG71XX_TX_RING_SIZE);
if (ret)
return ret;
ag71xx_ring_tx_init(ag);
ret = ag71xx_ring_alloc(&ag->rx_ring, AG71XX_RX_RING_SIZE);
if (ret)
return ret;
ret = ag71xx_ring_rx_init(ag);
return ret;
}
static void ar71xx_set_pll(u32 cfg_reg, u32 pll_reg, u32 pll_val, u32 shift)
{
uint32_t base = KSEG1ADDR(AR71XX_PLL_BASE);
u32 t;
t = readl(base + cfg_reg);
t &= ~(3 << shift);
t |= (2 << shift);
writel(t, base + cfg_reg);
udelay(100);
writel(pll_val, base + pll_reg);
t |= (3 << shift);
writel(t, base + cfg_reg);
udelay(100);
t &= ~(3 << shift);
writel(t, base + cfg_reg);
udelay(100);
debug("ar71xx: pll_reg %#x: %#x\n", (unsigned int)(base + pll_reg),
readl(base + pll_reg));
}
static void ar91xx_set_pll_ge0(int speed)
{
//u32 val = ar71xx_get_eth_pll(0, speed);
u32 pll_val;
switch (speed) {
case SPEED_10:
pll_val = 0x00441099;
break;
case SPEED_100:
pll_val = 0x13000a44;
break;
case SPEED_1000:
pll_val = 0x1a000000;
break;
default:
BUG();
}
ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH0_INT_CLOCK,
pll_val, AR91XX_ETH0_PLL_SHIFT);
}
static void ar91xx_set_pll_ge1(int speed)
{
//u32 val = ar71xx_get_eth_pll(1, speed);
u32 pll_val;
switch (speed) {
case SPEED_10:
pll_val = 0x00441099;
break;
case SPEED_100:
pll_val = 0x13000a44;
break;
case SPEED_1000:
pll_val = 0x1a000000;
break;
default:
BUG();
}
ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH1_INT_CLOCK,
pll_val, AR91XX_ETH1_PLL_SHIFT);
}
static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
{
u32 t;
t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16)
| (((u32) mac[3]) << 8) | ((u32) mac[2]);
ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t);
t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16);
ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
}
static void ag71xx_dma_reset(struct ag71xx *ag)
{
u32 val;
int i;
DBG("%s: txdesc reg: 0x%08x rxdesc reg: 0x%08x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_TX_DESC),
ag71xx_rr(ag, AG71XX_REG_RX_DESC));
/* stop RX and TX */
ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
/* clear descriptor addresses */
ag71xx_wr(ag, AG71XX_REG_TX_DESC, 0);
ag71xx_wr(ag, AG71XX_REG_RX_DESC, 0);
/* clear pending RX/TX interrupts */
for (i = 0; i < 256; i++) {
ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
}
/* clear pending errors */
ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
if (val)
printf("%s: unable to clear DMA Rx status: %08x\n",
ag->dev->name, val);
val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
/* mask out reserved bits */
val &= ~0xff000000;
if (val)
printf("%s: unable to clear DMA Tx status: %08x\n",
ag->dev->name, val);
}
static void ag71xx_halt(struct eth_device *dev)
{
struct ag71xx *ag = (struct ag71xx *) dev->priv;
/* stop RX engine */
ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
ag71xx_dma_reset(ag);
}
#define MAX_WAIT 1000
static int ag71xx_send(struct eth_device *dev, volatile void *packet,
int length)
{
struct ag71xx *ag = (struct ag71xx *) dev->priv;
struct ag71xx_ring *ring = &ag->tx_ring;
struct ag71xx_desc *desc;
int i;
i = ring->curr % AG71XX_TX_RING_SIZE;
desc = ring->buf[i].desc;
if (!ag71xx_desc_empty(desc)) {
printf("%s: tx buffer full\n", ag->dev->name);
return 1;
}
flush_cache((u32) packet, length);
desc->data = (u32) virt_to_phys(packet);
desc->ctrl = (length & DESC_PKTLEN_M);
DBG("%s: sending %#08x length %#08x\n",
ag->dev->name, desc->data, desc->ctrl);
ring->curr++;
if (ring->curr >= AG71XX_TX_RING_SIZE){
ring->curr = 0;
}
/* enable TX engine */
ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);
for (i = 0; i < MAX_WAIT; i++)
{
if (ag71xx_desc_empty(desc))
break;
udelay(10);
}
if (i == MAX_WAIT) {
printf("%s: tx timed out!\n", ag->dev->name);
return -1;
}
/* disable TX engine */
ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
desc->data = 0;
desc->ctrl = DESC_EMPTY;
return 0;
}
static int ag71xx_recv(struct eth_device *dev)
{
struct ag71xx *ag = (struct ag71xx *) dev->priv;
struct ag71xx_ring *ring = &ag->rx_ring;
for (;;) {
unsigned int i = ring->curr % AG71XX_RX_RING_SIZE;
struct ag71xx_desc *desc = ring->buf[i].desc;
int pktlen;
if (ag71xx_desc_empty(desc))
break;
DBG("%s: rx packets, curr=%u\n", dev->name, ring->curr);
pktlen = ag71xx_desc_pktlen(desc);
pktlen -= ETH_FCS_LEN;
NetReceive(NetRxPackets[i] , pktlen);
flush_cache( (u32) NetRxPackets[i], PKTSIZE_ALIGN);
ring->buf[i].desc->ctrl = DESC_EMPTY;
ring->curr++;
if (ring->curr >= AG71XX_RX_RING_SIZE){
ring->curr = 0;
}
}
if ((ag71xx_rr(ag, AG71XX_REG_RX_CTRL) & RX_CTRL_RXE) == 0) {
/* start RX engine */
ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
}
return 0;
}
#ifdef AG71XX_DEBUG
static char *ag71xx_speed_str(struct ag71xx *ag)
{
switch (ag->speed) {
case SPEED_1000:
return "1000";
case SPEED_100:
return "100";
case SPEED_10:
return "10";
}
return "?";
}
#endif
void ag71xx_link_adjust(struct ag71xx *ag)
{
u32 cfg2;
u32 ifctl;
u32 fifo5;
u32 mii_speed;
if (!ag->link) {
DBG("%s: link down\n", ag->dev->name);
return;
}
cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
ifctl &= ~(MAC_IFCTL_SPEED);
fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
fifo5 &= ~FIFO_CFG5_BM;
switch (ag->speed) {
case SPEED_1000:
mii_speed = MII_CTRL_SPEED_1000;
cfg2 |= MAC_CFG2_IF_1000;
fifo5 |= FIFO_CFG5_BM;
break;
case SPEED_100:
mii_speed = MII_CTRL_SPEED_100;
cfg2 |= MAC_CFG2_IF_10_100;
ifctl |= MAC_IFCTL_SPEED;
break;
case SPEED_10:
mii_speed = MII_CTRL_SPEED_10;
cfg2 |= MAC_CFG2_IF_10_100;
break;
default:
BUG();
return;
}
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x00780fff);
if (ag->macNum == 0)
ar91xx_set_pll_ge0(ag->speed);
else
ar91xx_set_pll_ge1(ag->speed);
ag71xx_mii_ctrl_set_speed(ag, mii_speed);
ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
DBG("%s: link up (%sMbps/%s duplex)\n",
ag->dev->name,
ag71xx_speed_str(ag),
(1 == ag->duplex) ? "Full" : "Half");
DBG("%s: fifo_cfg0=%#x, fifo_cfg1=%#x, fifo_cfg2=%#x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
DBG("%s: fifo_cfg3=%#x, fifo_cfg4=%#x, fifo_cfg5=%#x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
DBG("%s: mac_cfg2=%#x, mac_ifctl=%#x, mii_ctrl=%#x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
ag71xx_mii_ctrl_rr(ag));
}
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
static int ag71xx_getMiiSpeed(struct ag71xx *ag)
{
uint16_t phyreg, cap;
if (miiphy_read(ag->phyname, ag->phyid,
PHY_BMSR, &phyreg)) {
puts("PHY_BMSR read failed, assuming no link\n");
return -1;
}
if ((phyreg & PHY_BMSR_LS) == 0) {
return -1;
}
if (miiphy_read(ag->phyname, ag->phyid,
PHY_1000BTSR, &phyreg))
return -1;
if (phyreg & PHY_1000BTSR_1000FD) {
ag->speed = SPEED_1000;
ag->duplex = 1;
} else if (phyreg & PHY_1000BTSR_1000HD) {
ag->speed = SPEED_1000;
ag->duplex = 0;
} else {
if (miiphy_read(ag->phyname, ag->phyid,
PHY_ANAR, &cap))
return -1;
if (miiphy_read(ag->phyname, ag->phyid,
PHY_ANLPAR, &phyreg))
return -1;
cap &= phyreg;
if (cap & PHY_ANLPAR_TXFD) {
ag->speed = SPEED_100;
ag->duplex = 1;
} else if (cap & PHY_ANLPAR_TX) {
ag->speed = SPEED_100;
ag->duplex = 0;
} else if (cap & PHY_ANLPAR_10FD) {
ag->speed = SPEED_10;
ag->duplex = 1;
} else {
ag->speed = SPEED_10;
ag->duplex = 0;
}
}
ag->link = 1;
return 0;
}
#endif
static int ag71xx_hw_start(struct eth_device *dev, bd_t * bd)
{
struct ag71xx *ag = (struct ag71xx *) dev->priv;
ag71xx_dma_reset(ag);
ag71xx_ring_rx_clean(ag);
ag71xx_ring_tx_init(ag);
ag71xx_wr(ag, AG71XX_REG_TX_DESC,
(u32) virt_to_phys(ag->tx_ring.descs_dma));
ag71xx_wr(ag, AG71XX_REG_RX_DESC,
(u32) virt_to_phys(ag->rx_ring.descs_dma));
ag71xx_hw_set_macaddr(ag, ag->dev->enetaddr);
if (ag->phyfixed) {
ag->link = 1;
ag->duplex = 1;
ag->speed = SPEED_1000;
} else {
#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
if (ag71xx_getMiiSpeed(ag))
return -1;
#else
/* only fixed, without mii */
return -1;
#endif
}
ag71xx_link_adjust(ag);
DBG("%s: txdesc reg: %#08x rxdesc reg: %#08x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_TX_DESC),
ag71xx_rr(ag, AG71XX_REG_RX_DESC));
/* start RX engine */
ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
return 0;
}
#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
#define FIFO_CFG4_INIT (FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \
FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \
FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \
FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \
FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \
FIFO_CFG4_VT)
#define FIFO_CFG5_INIT (FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \
FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \
FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \
FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \
FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \
FIFO_CFG5_17 | FIFO_CFG5_SF)
static int ag71xx_hw_init(struct ag71xx *ag)
{
int ret = 0;
uint32_t reg;
uint32_t mask, mii_type;
if (ag->macNum == 0) {
mask = (RESET_MODULE_GE0_MAC | RESET_MODULE_GE0_PHY);
mii_type = 0x13;
} else {
mask = (RESET_MODULE_GE1_MAC | RESET_MODULE_GE1_PHY);
mii_type = 0x11;
}
// mac soft reset
ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR);
udelay(20);
// device stop
reg = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE);
ar71xx_reset_wr(AR91XX_RESET_REG_RESET_MODULE, reg | mask);
udelay(100 * 1000);
// device start
reg = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE);
ar71xx_reset_wr(AR91XX_RESET_REG_RESET_MODULE, reg & ~mask);
udelay(100 * 1000);
/* setup MAC configuration registers */
ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, (MAC_CFG1_RXE | MAC_CFG1_TXE));
ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
/* setup FIFO configuration register 0 */
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
/* setup MII interface type */
ag71xx_mii_ctrl_set_if(ag, ag->mii_if);
/* setup mdio clock divisor */
ag71xx_wr(ag, AG71XX_REG_MII_CFG, MII_CFG_CLK_DIV_20);
/* setup FIFO configuration registers */
ag71xx_sb(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
ag71xx_dma_reset(ag);
ret = ag71xx_rings_init(ag);
if (ret)
return -1;
ag71xx_wr(ag, AG71XX_REG_TX_DESC,
(u32) virt_to_phys(ag->tx_ring.descs_dma));
ag71xx_wr(ag, AG71XX_REG_RX_DESC,
(u32) virt_to_phys(ag->rx_ring.descs_dma));
ag71xx_hw_set_macaddr(ag, ag->dev->enetaddr);
return 0;
}
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
#define AG71XX_MDIO_RETRY 1000
#define AG71XX_MDIO_DELAY 5
static inline struct ag71xx *ag71xx_name2mac(char *devname)
{
if (strcmp(devname, agtable[0].dev->name) == 0)
return &agtable[0];
else if (strcmp(devname, agtable[1].dev->name) == 0)
return &agtable[1];
else
return NULL;
}
static inline void ag71xx_mdio_wr(struct ag71xx *ag, unsigned reg,
u32 value)
{
uint32_t r;
r = ag->mac_base + reg;
writel(value, r);
/* flush write */
(void) readl(r);
}
static inline u32 ag71xx_mdio_rr(struct ag71xx *ag, unsigned reg)
{
return readl(ag->mac_base + reg);
}
static int ag71xx_mdio_read(char *devname, unsigned char addr,
unsigned char reg, unsigned short *val)
{
struct ag71xx *ag = ag71xx_name2mac(devname);
uint16_t regData;
int i;
ag71xx_mdio_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
ag71xx_mdio_wr(ag, AG71XX_REG_MII_ADDR,
((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
ag71xx_mdio_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_READ);
i = AG71XX_MDIO_RETRY;
while (ag71xx_mdio_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
if (i-- == 0) {
printf("%s: mii_read timed out\n",
ag->dev->name);
return -1;
}
udelay(AG71XX_MDIO_DELAY);
}
regData = (uint16_t) ag71xx_mdio_rr(ag, AG71XX_REG_MII_STATUS) & 0xffff;
ag71xx_mdio_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, regData);
if (val)
*val = regData;
return 0;
}
static int ag71xx_mdio_write(char *devname, unsigned char addr,
unsigned char reg, unsigned short val)
{
struct ag71xx *ag = ag71xx_name2mac(devname);
int i;
if (ag == NULL)
return 1;
DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
ag71xx_mdio_wr(ag, AG71XX_REG_MII_ADDR,
((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
ag71xx_mdio_wr(ag, AG71XX_REG_MII_CTRL, val);
i = AG71XX_MDIO_RETRY;
while (ag71xx_mdio_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
if (i-- == 0) {
printf("%s: mii_write timed out\n",
ag->dev->name);
break;
}
udelay(AG71XX_MDIO_DELAY);
}
return 0;
}
#endif
int ag71xx_register(bd_t * bis, char *phyname[], uint16_t phyid[], uint16_t phyfixed[])
{
int i, num = 0;
u8 used_ports[MAX_AG71XX_DEVS] = CONFIG_AG71XX_PORTS;
for (i = 0; i < MAX_AG71XX_DEVS; i++) {
/*skip if port is configured not to use */
if (used_ports[i] == 0)
continue;
agtable[i].dev = malloc(sizeof(struct eth_device));
if (agtable[i].dev == NULL) {
puts("malloc failed\n");
return 0;
}
memset(agtable[i].dev, 0, sizeof(struct eth_device));
sprintf(agtable[i].dev->name, "eth%d", i);
agtable[i].dev->iobase = 0;
agtable[i].dev->init = ag71xx_hw_start;
agtable[i].dev->halt = ag71xx_halt;
agtable[i].dev->send = ag71xx_send;
agtable[i].dev->recv = ag71xx_recv;
agtable[i].dev->priv = (void *) (&agtable[i]);
agtable[i].macNum = i;
eth_register(agtable[i].dev);
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
if ((phyname == NULL) || (phyid == NULL) || (phyfixed == NULL))
return -1;
agtable[i].phyname = strdup(phyname[i]);
agtable[i].phyid = phyid[i];
agtable[i].phyfixed = phyfixed[i];
miiphy_register(agtable[i].dev->name, ag71xx_mdio_read,
ag71xx_mdio_write);
#endif
if (ag71xx_hw_init(&agtable[i]))
continue;
num++;
}
return num;
}
Reference in New Issue View Git Blame Copy Permalink