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[ar71xx] ethernet driver updates

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* new mii bus code, mac0 and mac1 can use the mac0's miii bus from now on
* swap eth0 & eth1 on RB433/450


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11995 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2008-07-29 18:22:38 +00:00
parent 1468e65572
commit 52696b5d81
11 changed files with 508 additions and 285 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
target/linux/ar71xx/files/arch/mips/ar71xx/mach-generic.c
View File

@ -49,8 +49,9 @@ static void __init ar71xx_generic_init(void)
ar71xx_add_device_spi(NULL, ar71xx_generic_spi_info,
ARRAY_SIZE(ar71xx_generic_spi_info));
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x001f0000);
ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0xffffffff);
ar71xx_add_device_mdio(0xffe0ffff);
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x000f0000);
ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00100000);
ar71xx_add_device_usb();

11
target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
View File

@ -153,6 +153,7 @@ static void __init rb411_setup(void)
{
rb4xx_add_device_spi();
ar71xx_add_device_mdio(0xfffffffe);
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
platform_device_register(&rb4xx_leds_gpio_device);
@ -167,8 +168,9 @@ static void __init rb433_setup(void)
{
rb433_add_device_spi();
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0xffffffff);
ar71xx_add_device_mdio(0xffffffec);
ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000003);
platform_device_register(&rb4xx_leds_gpio_device);
platform_device_register(&rb4xx_nand_device);
@ -182,8 +184,9 @@ static void __init rb450_setup(void)
{
rb4xx_add_device_spi();
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0xffffffff);
ar71xx_add_device_mdio(0xffffffe0);
ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000010);
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x0000000f);
platform_device_register(&rb4xx_leds_gpio_device);
platform_device_register(&rb4xx_nand_device);

1
target/linux/ar71xx/files/arch/mips/ar71xx/mach-wp543.c
View File

@ -48,6 +48,7 @@ static void __init wp543_setup(void)
{
ar71xx_add_device_spi(NULL, wp543_spi_info, ARRAY_SIZE(wp543_spi_info));
ar71xx_add_device_mdio(0xfffffffe);
ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
ar71xx_pci_init(ARRAY_SIZE(wp543_pci_irqs), wp543_pci_irqs);

51
target/linux/ar71xx/files/arch/mips/ar71xx/platform.c
View File

@ -143,12 +143,46 @@ static void __init ar71xx_add_device_uart(void)
}
#endif /* CONFIG_AR71XX_EARLY_SERIAL */
static struct resource ar71xx_mdio_resources[] = {
{
.name = "mdio_base",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE0_BASE + 0x20,
.end = AR71XX_GE0_BASE + 0x38 - 1,
}
};
static struct ag71xx_mdio_platform_data ar71xx_mdio_data = {
.phy_mask = 0xffffffff,
};
static struct platform_device ar71xx_mdio_device = {
.name = "ag71xx-mdio",
.id = -1,
.resource = ar71xx_mdio_resources,
.num_resources = ARRAY_SIZE(ar71xx_mdio_resources),
.dev = {
.platform_data = &ar71xx_mdio_data,
},
};
void __init ar71xx_add_device_mdio(u32 phy_mask)
{
ar71xx_mdio_data.phy_mask = phy_mask;
platform_device_register(&ar71xx_mdio_device);
}
static struct resource ar71xx_eth0_resources[] = {
{
.name = "mac_base",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE0_BASE,
.end = AR71XX_GE0_BASE + AR71XX_GE0_SIZE - 1,
.end = AR71XX_GE0_BASE + 0x20 - 1,
}, {
.name = "mac_base2",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE0_BASE + 0x38,
.end = AR71XX_GE0_BASE + 0x200 - 1,
}, {
.name = "mii_ctrl",
.flags = IORESOURCE_MEM,
@ -182,7 +216,12 @@ static struct resource ar71xx_eth1_resources[] = {
.name = "mac_base",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE1_BASE,
.end = AR71XX_GE1_BASE + AR71XX_GE1_SIZE - 1,
.end = AR71XX_GE1_BASE + 0x20 - 1,
}, {
.name = "mac_base2",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE1_BASE + 0x38,
.end = AR71XX_GE1_BASE + 0x200 - 1,
}, {
.name = "mii_ctrl",
.flags = IORESOURCE_MEM,
@ -211,6 +250,7 @@ static struct platform_device ar71xx_eth1_device = {
},
};
static int ar71xx_eth_instance __initdata;
void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
u32 phy_mask)
{
@ -235,6 +275,7 @@ void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
BUG();
}
memcpy(ar71xx_eth0_data.mac_addr, ar71xx_mac_base, ETH_ALEN);
ar71xx_eth0_data.mac_addr[5] += ar71xx_eth_instance;
ar71xx_eth0_data.phy_if_mode = phy_if_mode;
ar71xx_eth0_data.phy_mask = phy_mask;
pdev = &ar71xx_eth0_device;
@ -251,7 +292,7 @@ void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
BUG();
}
memcpy(ar71xx_eth1_data.mac_addr, ar71xx_mac_base, ETH_ALEN);
ar71xx_eth1_data.mac_addr[5] += id;
ar71xx_eth1_data.mac_addr[5] += ar71xx_eth_instance;
ar71xx_eth1_data.phy_if_mode = phy_if_mode;
ar71xx_eth1_data.phy_mask = phy_mask;
pdev = &ar71xx_eth1_device;
@ -261,8 +302,10 @@ void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
break;
}
if (pdev)
if (pdev) {
platform_device_register(pdev);
ar71xx_eth_instance++;
}
}
static struct resource ar71xx_spi_resources[] = {

2
target/linux/ar71xx/files/drivers/net/ag71xx/Makefile
View File

@ -4,4 +4,4 @@
obj-$(CONFIG_AG71XX) += ag71xx.o
ag71xx-objs := ag71xx_main.o ag71xx_mii.o ag71xx_ethtool.o
ag71xx-objs := ag71xx_main.o ag71xx_ethtool.o ag71xx_phy.o ag71xx_mdio.o

160
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
View File

@ -15,6 +15,7 @@
#define __AG71XX_H
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
@ -36,7 +37,7 @@
#define ETH_FCS_LEN 4
#define AG71XX_DRV_NAME "ag71xx"
#define AG71XX_DRV_VERSION "0.3.10"
#define AG71XX_DRV_VERSION "0.4.0"
#define AG71XX_NAPI_TX 1
@ -67,8 +68,8 @@
#define AG71XX_RX_RING_SIZE 128
#undef DEBUG
#ifdef DEBUG
#undef AG71XX_DEBUG
#ifdef AG71XX_DEBUG
#define DBG(fmt, args...) printk(KERN_DEBUG fmt, ## args)
#else
#define DBG(fmt, args...) do {} while (0)
@ -104,8 +105,15 @@ struct ag71xx_ring {
unsigned int size;
};
struct ag71xx_mdio {
struct mii_bus mii_bus;
int mii_irq[PHY_MAX_ADDR];
void __iomem *mdio_base;
};
struct ag71xx {
void __iomem *mac_base;
void __iomem *mac_base2;
void __iomem *mii_ctrl;
spinlock_t lock;
@ -116,8 +124,8 @@ struct ag71xx {
struct ag71xx_ring rx_ring;
struct ag71xx_ring tx_ring;
struct mii_bus *mii_bus;
struct phy_device *phy_dev;
struct mii_bus mii_bus;
unsigned int link;
unsigned int speed;
@ -126,42 +134,20 @@ struct ag71xx {
extern struct ethtool_ops ag71xx_ethtool_ops;
extern int ag71xx_mdio_init(struct ag71xx *ag, int id);
extern void ag71xx_mdio_cleanup(struct ag71xx *ag);
extern int ag71xx_mii_peek(struct ag71xx *ag);
extern void ag71xx_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if);
extern void ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, unsigned int speed);
extern void ag71xx_link_update(struct ag71xx *ag);
extern struct ag71xx_mdio *ag71xx_mdio_bus;
extern int ag71xx_mdio_driver_init(void) __init;
extern void ag71xx_mdio_driver_exit(void);
extern int ag71xx_phy_connect(struct ag71xx *ag);
extern void ag71xx_phy_disconnect(struct ag71xx *ag);
extern void ag71xx_phy_start(struct ag71xx *ag);
extern void ag71xx_phy_stop(struct ag71xx *ag);
static inline struct ag71xx_platform_data *ag71xx_get_pdata(struct ag71xx *ag)
{
return ag->pdev->dev.platform_data;
}
static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
{
__raw_writel(value, ag->mac_base + reg);
}
static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
{
return __raw_readl(ag->mac_base + reg);
}
static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
{
void __iomem *r = ag->mac_base + reg;
__raw_writel(__raw_readl(r) | mask, r);
}
static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
{
void __iomem *r = ag->mac_base + reg;
__raw_writel(__raw_readl(r) & ~mask, r);
}
static inline int ag71xx_desc_empty(struct ag71xx_desc *desc)
{
return ((desc->ctrl & DESC_EMPTY) != 0);
@ -242,6 +228,7 @@ static inline int ag71xx_desc_pktlen(struct ag71xx_desc *desc)
#define MII_CFG_CLK_DIV_14 5
#define MII_CFG_CLK_DIV_20 6
#define MII_CFG_CLK_DIV_28 7
#define MII_CFG_RESET BIT(31)
#define MII_CMD_WRITE 0x0
#define MII_CMD_READ 0x1
@ -263,12 +250,81 @@ static inline int ag71xx_desc_pktlen(struct ag71xx_desc *desc)
#define FIFO_CFG5_BYTE_PER_CLK BIT(19)
#define MII_CTRL_SPEED_S 4
#define MII_CTRL_SPEED_M 3
#define MII_CTRL_IF_MASK 3
#define MII_CTRL_SPEED_SHIFT 4
#define MII_CTRL_SPEED_MASK 3
#define MII_CTRL_SPEED_10 0
#define MII_CTRL_SPEED_100 1
#define MII_CTRL_SPEED_1000 2
static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
{
switch (reg) {
case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
__raw_writel(value, ag->mac_base + reg);
break;
case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
reg -= AG71XX_REG_MAC_IFCTL;
__raw_writel(value, ag->mac_base2 + reg);
break;
default:
BUG();
}
}
static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
{
u32 ret;
switch (reg) {
case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
ret = __raw_readl(ag->mac_base + reg);
break;
case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
reg -= AG71XX_REG_MAC_IFCTL;
ret = __raw_readl(ag->mac_base2 + reg);
break;
}
return ret;
}
static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
{
void __iomem *r;
switch (reg) {
case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
r = ag->mac_base + reg;
__raw_writel(__raw_readl(r) | mask, r);
break;
case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL;
__raw_writel(__raw_readl(r) | mask, r);
break;
default:
BUG();
}
}
static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
{
void __iomem *r;
switch (reg) {
case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
r = ag->mac_base + reg;
__raw_writel(__raw_readl(r) & ~mask, r);
break;
case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL;
__raw_writel(__raw_readl(r) & ~mask, r);
break;
default:
BUG();
}
}
static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints)
{
ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints);
@ -279,4 +335,36 @@ static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints)
ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints);
}
static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value)
{
__raw_writel(value, ag->mii_ctrl);
}
static inline u32 ag71xx_mii_ctrl_rr(struct ag71xx *ag)
{
return __raw_readl(ag->mii_ctrl);
}
static void inline ag71xx_mii_ctrl_set_if(struct ag71xx *ag,
unsigned int mii_if)
{
u32 t;
t = ag71xx_mii_ctrl_rr(ag);
t &= ~(MII_CTRL_IF_MASK);
t |= (mii_if & MII_CTRL_IF_MASK);
ag71xx_mii_ctrl_wr(ag, t);
}
static void inline ag71xx_mii_ctrl_set_speed(struct ag71xx *ag,
unsigned int speed)
{
u32 t;
t = ag71xx_mii_ctrl_rr(ag);
t &= ~(MII_CTRL_SPEED_MASK << MII_CTRL_SPEED_SHIFT);
t |= (speed & MII_CTRL_SPEED_MASK) << MII_CTRL_SPEED_SHIFT;
ag71xx_mii_ctrl_wr(ag, t);
}
#endif /* _AG71XX_H */

84
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
View File

@ -22,16 +22,6 @@ static void ag71xx_dump_regs(struct ag71xx *ag)
ag71xx_rr(ag, AG71XX_REG_MAC_IPG),
ag71xx_rr(ag, AG71XX_REG_MAC_HDX),
ag71xx_rr(ag, AG71XX_REG_MAC_MFL));
DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_MII_CFG),
ag71xx_rr(ag, AG71XX_REG_MII_CMD),
ag71xx_rr(ag, AG71XX_REG_MII_ADDR));
DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_MII_CTRL),
ag71xx_rr(ag, AG71XX_REG_MII_STATUS),
ag71xx_rr(ag, AG71XX_REG_MII_IND));
DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n",
ag->dev->name,
ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
@ -286,8 +276,6 @@ static void ag71xx_hw_init(struct ag71xx *ag)
ag71xx_mii_ctrl_set_if(ag, pdata->mii_if);
ag71xx_wr(ag, AG71XX_REG_MII_CFG, MII_CFG_CLK_DIV_28);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, 0x0000ffff);
@ -325,14 +313,7 @@ static int ag71xx_open(struct net_device *dev)
napi_enable(&ag->napi);
netif_carrier_off(dev);
if (ag->phy_dev) {
phy_start(ag->phy_dev);
} else {
ag->duplex = DUPLEX_FULL;
ag->speed = SPEED_100;
ag->link = 1;
ag71xx_link_update(ag);
}
ag71xx_phy_start(ag);
ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma);
@ -362,14 +343,7 @@ static int ag71xx_stop(struct net_device *dev)
ag71xx_hw_stop(ag);
netif_carrier_off(dev);
if (ag->phy_dev) {
phy_stop(ag->phy_dev);
} else {
ag->duplex = -1;
ag->link = 0;
ag->speed = 0;
ag71xx_link_update(ag);
}
ag71xx_phy_stop(ag);
napi_disable(&ag->napi);
@ -717,6 +691,7 @@ static int __init ag71xx_probe(struct platform_device *pdev)
ag = netdev_priv(dev);
ag->pdev = pdev;
ag->dev = dev;
ag->mii_bus = &ag71xx_mdio_bus->mii_bus;
spin_lock_init(&ag->lock);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
@ -733,18 +708,32 @@ static int __init ag71xx_probe(struct platform_device *pdev)
goto err_free_dev;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base2");
if (!res) {
dev_err(&pdev->dev, "no mac_base2 resource found\n");
err = -ENXIO;
goto err_unmap_base1;
}
ag->mac_base2 = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mac_base) {
dev_err(&pdev->dev, "unable to ioremap mac_base2\n");
err = -ENOMEM;
goto err_unmap_base1;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl");
if (!res) {
dev_err(&pdev->dev, "no mii_ctrl resource found\n");
err = -ENXIO;
goto err_unmap_base;
goto err_unmap_base2;
}
ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mii_ctrl) {
dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n");
err = -ENOMEM;
goto err_unmap_base;
goto err_unmap_base2;
}
dev->irq = platform_get_irq(pdev, 0);
@ -790,7 +779,14 @@ static int __init ag71xx_probe(struct platform_device *pdev)
ag71xx_dump_regs(ag);
err = ag71xx_mdio_init(ag, pdev->id);
/* Reset the mdio bus explicitly */
if (ag->mii_bus) {
mutex_lock(&ag->mii_bus->mdio_lock);
ag->mii_bus->reset(ag->mii_bus);
mutex_unlock(&ag->mii_bus->mdio_lock);
}
err = ag71xx_phy_connect(ag);
if (err)
goto err_unregister_netdev;
@ -804,7 +800,9 @@ err_free_irq:
free_irq(dev->irq, dev);
err_unmap_mii_ctrl:
iounmap(ag->mii_ctrl);
err_unmap_base:
err_unmap_base2:
iounmap(ag->mac_base2);
err_unmap_base1:
iounmap(ag->mac_base);
err_free_dev:
kfree(dev);
@ -820,12 +818,11 @@ static int __exit ag71xx_remove(struct platform_device *pdev)
if (dev) {
struct ag71xx *ag = netdev_priv(dev);
if (ag->phy_dev)
phy_disconnect(ag->phy_dev);
ag71xx_mdio_cleanup(ag);
ag71xx_phy_disconnect(ag);
unregister_netdev(dev);
free_irq(dev->irq, dev);
iounmap(ag->mii_ctrl);
iounmap(ag->mac_base2);
iounmap(ag->mac_base);
kfree(dev);
platform_set_drvdata(pdev, NULL);
@ -844,7 +841,22 @@ static struct platform_driver ag71xx_driver = {
static int __init ag71xx_module_init(void)
{
return platform_driver_register(&ag71xx_driver);
int ret;
ret = ag71xx_mdio_driver_init();
if (ret)
goto err_out;
ret = platform_driver_register(&ag71xx_driver);
if (ret)
goto err_mdio_exit;
return 0;
err_mdio_exit:
ag71xx_mdio_driver_exit();
err_out:
return ret;
}
static void __exit ag71xx_module_exit(void)

226
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mdio.c Normal file
View File

@ -0,0 +1,226 @@
/*
* Atheros AR71xx built-in ethernet mac driver
*
* Copyright (C) 2008 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 "ag71xx.h"
#define AG71XX_MDIO_RETRY 1000
#define AG71XX_MDIO_DELAY 5
struct ag71xx_mdio *ag71xx_mdio_bus;
static inline void ag71xx_mdio_wr(struct ag71xx_mdio *am, unsigned reg,
u32 value)
{
__raw_writel(value, am->mdio_base + reg - AG71XX_REG_MII_CFG);
}
static inline u32 ag71xx_mdio_rr(struct ag71xx_mdio *am, unsigned reg)
{
return __raw_readl(am->mdio_base + reg - AG71XX_REG_MII_CFG);
}
static void ag71xx_mdio_dump_regs(struct ag71xx_mdio *am)
{
DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n",
am->mii_bus.name,
ag71xx_mdio_rr(am, AG71XX_REG_MII_CFG),
ag71xx_mdio_rr(am, AG71XX_REG_MII_CMD),
ag71xx_mdio_rr(am, AG71XX_REG_MII_ADDR));
DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n",
am->mii_bus.name,
ag71xx_mdio_rr(am, AG71XX_REG_MII_CTRL),
ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS),
ag71xx_mdio_rr(am, AG71XX_REG_MII_IND));
}
static int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg)
{
int ret;
int i;
ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR,
((addr & 0xff) << MII_ADDR_S) | (reg & 0xff));
ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_READ);
i = AG71XX_MDIO_RETRY;
while (ag71xx_mdio_rr(am, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
if (i-- == 0) {
printk(KERN_ERR "%s: mii_read timed out\n",
am->mii_bus.name);
ret = 0xffff;
goto out;
}
udelay(AG71XX_MDIO_DELAY);
}
ret = ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS) & 0xffff;
ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret);
out:
return ret;
}
static void ag71xx_mdio_mii_write(struct ag71xx_mdio *am,
int addr, int reg, u16 val)
{
int i;
DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR,
((addr & 0xff) << MII_ADDR_S) | (reg & 0xff));
ag71xx_mdio_wr(am, AG71XX_REG_MII_CTRL, val);
i = AG71XX_MDIO_RETRY;
while (ag71xx_mdio_rr(am, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
if (i-- == 0) {
printk(KERN_ERR "%s: mii_write timed out\n",
am->mii_bus.name);
break;
}
udelay(AG71XX_MDIO_DELAY);
}
}
static int ag71xx_mdio_reset(struct mii_bus *bus)
{
struct ag71xx_mdio *am = bus->priv;
ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, MII_CFG_RESET);
udelay(100);
ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, MII_CFG_CLK_DIV_28);
udelay(100);
return 0;
}
static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg)
{
struct ag71xx_mdio *am = bus->priv;
return ag71xx_mdio_mii_read(am, addr, reg);
}
static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
struct ag71xx_mdio *am = bus->priv;
ag71xx_mdio_mii_write(am, addr, reg, val);
return 0;
}
static int __init ag71xx_mdio_probe(struct platform_device *pdev)
{
struct ag71xx_mdio_platform_data *pdata;
struct ag71xx_mdio *am;
struct resource *res;
int i;
int err;
if (ag71xx_mdio_bus)
return -EBUSY;
am = kzalloc(sizeof(*am), GFP_KERNEL);
if (!am) {
err = -ENOMEM;
goto err_out;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "no iomem resource found\n");
err = -ENXIO;
goto err_out;
}
am->mdio_base = ioremap_nocache(res->start, res->end - res->start + 1);
if (!am->mdio_base) {
dev_err(&pdev->dev, "unable to ioremap registers\n");
err = -ENOMEM;
goto err_free_mdio;
}
am->mii_bus.name = "ag71xx_mdio";
am->mii_bus.read = ag71xx_mdio_read;
am->mii_bus.write = ag71xx_mdio_write;
am->mii_bus.reset = ag71xx_mdio_reset;
am->mii_bus.irq = am->mii_irq;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
am->mii_bus.id = 0;
#else
snprintf(am->mii_bus.id, MII_BUS_ID_SIZE, "%x", 0);
#endif
am->mii_bus.priv = am;
am->mii_bus.dev = &pdev->dev;
pdata = pdev->dev.platform_data;
if (pdata)
am->mii_bus.phy_mask = pdata->phy_mask;
for (i = 0; i < PHY_MAX_ADDR; i++)
am->mii_irq[i] = PHY_POLL;
err = mdiobus_register(&am->mii_bus);
if (err)
goto err_iounmap;
ag71xx_mdio_dump_regs(am);
platform_set_drvdata(pdev, am);
ag71xx_mdio_bus = am;
return 0;
err_iounmap:
iounmap(am->mdio_base);
err_free_mdio:
kfree(am);
err_out:
return err;
}
static int __exit ag71xx_mdio_remove(struct platform_device *pdev)
{
struct ag71xx_mdio *am = platform_get_drvdata(pdev);
if (am) {
ag71xx_mdio_bus = NULL;
mdiobus_unregister(&am->mii_bus);
iounmap(am->mdio_base);
kfree(am);
platform_set_drvdata(pdev, NULL);
}
return 0;
}
static struct platform_driver ag71xx_mdio_driver = {
.probe = ag71xx_mdio_probe,
.remove = __exit_p(ag71xx_mdio_remove),
.driver = {
.name = "ag71xx-mdio",
}
};
int ag71xx_mdio_driver_init(void)
{
return platform_driver_register(&ag71xx_mdio_driver);
}
void ag71xx_mdio_driver_exit(void)
{
platform_driver_unregister(&ag71xx_mdio_driver);
}

236
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mii.c → target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
View File

@ -13,134 +13,23 @@
#include "ag71xx.h"
#define AG71XX_MII_RETRY 1000
#define AG71XX_MII_DELAY 5
static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value)
{
__raw_writel(value, ag->mii_ctrl);
}
static inline u32 ag71xx_mii_ctrl_rr(struct ag71xx *ag)
{
return __raw_readl(ag->mii_ctrl);
}
void ag71xx_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if)
{
u32 t;
t = ag71xx_mii_ctrl_rr(ag);
t &= ~(0x3);
t |= (mii_if & 0x3);
ag71xx_mii_ctrl_wr(ag, t);
}
void ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, unsigned int speed)
{
u32 t;
t = ag71xx_mii_ctrl_rr(ag);
t &= ~(0x3 << 4);
t |= (speed & 0x3) << 4;
ag71xx_mii_ctrl_wr(ag, t);
}
static int ag71xx_mii_read(struct ag71xx *ag, int addr, int reg)
{
int ret;
int i;
ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
ag71xx_wr(ag, AG71XX_REG_MII_ADDR,
((addr & 0xff) << MII_ADDR_S) | (reg & 0xff));
ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_READ);
i = AG71XX_MII_RETRY;
while (ag71xx_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
if (i-- == 0) {
printk(KERN_ERR "%s: mii_read timed out\n",
ag->dev->name);
ret = 0xffff;
goto out;
}
udelay(AG71XX_MII_DELAY);
}
ret = ag71xx_rr(ag, AG71XX_REG_MII_STATUS) & 0xffff;
ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret);
out:
return ret;
}
static void ag71xx_mii_write(struct ag71xx *ag, int addr, int reg, u16 val)
{
int i;
DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
ag71xx_wr(ag, AG71XX_REG_MII_ADDR,
((addr & 0xff) << MII_ADDR_S) | (reg & 0xff));
ag71xx_wr(ag, AG71XX_REG_MII_CTRL, val);
i = AG71XX_MII_RETRY;
while (ag71xx_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
if (i-- == 0) {
printk(KERN_ERR "%s: mii_write timed out\n",
ag->dev->name);
break;
}
udelay(AG71XX_MII_DELAY);
}
}
int ag71xx_mii_peek(struct ag71xx *ag)
{
int cnt;
int i;
cnt = 0;
for (i = 0; i < PHY_MAX_ADDR; i++) {
u16 bmsr, id1, id2, bmcr, advert, lpa;
bmsr = ag71xx_mii_read(ag, i, MII_BMSR);
bmcr = ag71xx_mii_read(ag, i, MII_BMCR);
id1 = ag71xx_mii_read(ag, i, MII_PHYSID1);
id2 = ag71xx_mii_read(ag, i, MII_PHYSID2);
advert = ag71xx_mii_read(ag, i, MII_ADVERTISE);
lpa = ag71xx_mii_read(ag, i, MII_LPA);
DBG("%s: phy%02d bmsr=%04x, bmcr=%04x, "
"id=%04x.%04x, advertise=%04x, lpa=%04x\n",
ag->dev->name, i,
bmsr, bmcr, id1, id2, advert, lpa);
if ((bmsr | bmcr | id1 | id2 | advert | lpa) != 0)
cnt++;
}
return cnt;
}
#define PLL_SEC_CONFIG 0x18050004
#define PLL_ETH0_INT_CLOCK 0x18050010
#define PLL_ETH1_INT_CLOCK 0x18050014
#define PLL_ETH_EXT_CLOCK 0x18050018
#define ag7100_pll_shift(_ag) (((_ag)->pdev->id) ? 19 : 17)
#define ag7100_pll_offset(_ag) (((_ag)->pdev->id) ? PLL_ETH1_INT_CLOCK \
#define ag71xx_pll_shift(_ag) (((_ag)->pdev->id) ? 19 : 17)
#define ag71xx_pll_offset(_ag) (((_ag)->pdev->id) ? PLL_ETH1_INT_CLOCK \
: PLL_ETH0_INT_CLOCK)
static void ag71xx_set_pll(struct ag71xx *ag, u32 pll_val)
{
void __iomem *pll_reg = ioremap_nocache(ag7100_pll_offset(ag), 4);
void __iomem *pll_reg = ioremap_nocache(ag71xx_pll_offset(ag), 4);
void __iomem *pll_cfg = ioremap_nocache(PLL_SEC_CONFIG, 4);
u32 s;
u32 t;
s = ag7100_pll_shift(ag);
s = ag71xx_pll_shift(ag);
t = __raw_readl(pll_cfg);
t &= ~(3 << s);
@ -188,7 +77,7 @@ static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
#define PLL_VAL_10 0x09991999
#endif
void ag71xx_link_update(struct ag71xx *ag)
static void ag71xx_phy_link_update(struct ag71xx *ag)
{
u32 cfg2;
u32 ifctl;
@ -264,7 +153,7 @@ void ag71xx_link_update(struct ag71xx *ag)
ag71xx_mii_ctrl_rr(ag));
}
static void ag71xx_link_adjust(struct net_device *dev)
static void ag71xx_phy_link_adjust(struct net_device *dev)
{
struct ag71xx *ag = netdev_priv(dev);
struct phy_device *phydev = ag->phy_dev;
@ -292,33 +181,36 @@ static void ag71xx_link_adjust(struct net_device *dev)
ag->speed = phydev->speed;
if (status_change)
ag71xx_link_update(ag);
ag71xx_phy_link_update(ag);
spin_unlock_irqrestore(&ag->lock, flags);
}
static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg)
void ag71xx_phy_start(struct ag71xx *ag)
{
struct ag71xx *ag = bus->priv;
return ag71xx_mii_read(ag, addr, reg);
if (ag->phy_dev) {
phy_start(ag->phy_dev);
} else {
ag->duplex = DUPLEX_FULL;
ag->speed = SPEED_100;
ag->link = 1;
ag71xx_phy_link_update(ag);
}
}
static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val)
void ag71xx_phy_stop(struct ag71xx *ag)
{
struct ag71xx *ag = bus->priv;
ag71xx_mii_write(ag, addr, reg, val);
return 0;
if (ag->phy_dev) {
phy_stop(ag->phy_dev);
} else {
ag->duplex = -1;
ag->link = 0;
ag->speed = 0;
ag71xx_phy_link_update(ag);
}
}
static int ag71xx_mdio_reset(struct mii_bus *bus)
{
/* TODO */
return 0;
}
static int ag71xx_mdio_probe(struct ag71xx *ag)
int ag71xx_phy_connect(struct ag71xx *ag)
{
struct net_device *dev = ag->dev;
struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
@ -326,22 +218,25 @@ static int ag71xx_mdio_probe(struct ag71xx *ag)
int phy_count = 0;
int phy_addr;
for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
if (!(pdata->phy_mask & (1 << phy_addr)))
continue;
if (ag->mii_bus) {
/* TODO: use mutex of the mdio bus */
for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
if (!(pdata->phy_mask & (1 << phy_addr)))
continue;
if (ag->mii_bus.phy_map[phy_addr] == NULL)
continue;
if (ag->mii_bus->phy_map[phy_addr] == NULL)
continue;
DBG("%s: PHY found at %s, uid=%08x\n",
dev->name,
ag->mii_bus.phy_map[phy_addr]->dev.bus_id,
ag->mii_bus.phy_map[phy_addr]->phy_id);
DBG("%s: PHY found at %s, uid=%08x\n",
dev->name,
ag->mii_bus->phy_map[phy_addr]->dev.bus_id,
ag->mii_bus->phy_map[phy_addr]->phy_id);
if (phydev == NULL)
phydev = ag->mii_bus.phy_map[phy_addr];
if (phydev == NULL)
phydev = ag->mii_bus->phy_map[phy_addr];
phy_count++;
phy_count++;
}
}
switch (phy_count) {
@ -350,7 +245,7 @@ static int ag71xx_mdio_probe(struct ag71xx *ag)
return -ENODEV;
case 1:
ag->phy_dev = phy_connect(dev, phydev->dev.bus_id,
&ag71xx_link_adjust, 0, pdata->phy_if_mode);
&ag71xx_phy_link_adjust, 0, pdata->phy_if_mode);
if (IS_ERR(ag->phy_dev)) {
printk(KERN_ERR "%s: could not connect to PHY at %s\n",
@ -388,49 +283,8 @@ static int ag71xx_mdio_probe(struct ag71xx *ag)
return 0;
}
int ag71xx_mdio_init(struct ag71xx *ag, int id)
void ag71xx_phy_disconnect(struct ag71xx *ag)
{
int err;
int i;
ag->mii_bus.name = "ag71xx_mii";
ag->mii_bus.read = ag71xx_mdio_read;
ag->mii_bus.write = ag71xx_mdio_write;
ag->mii_bus.reset = ag71xx_mdio_reset;
ag->mii_bus.id = id;
ag->mii_bus.priv = ag;
ag->mii_bus.dev = &ag->dev->dev;
ag->mii_bus.irq = kmalloc(sizeof(*ag->mii_bus.irq) * PHY_MAX_ADDR,
GFP_KERNEL);
if (!ag->mii_bus.irq) {
err = -ENOMEM;
goto err_out;
}
for (i = 0; i < PHY_MAX_ADDR; i++)
ag->mii_bus.irq[i] = PHY_POLL;
err = mdiobus_register(&ag->mii_bus);
if (err)
goto err_free_irqs;
err = ag71xx_mdio_probe(ag);
if (err)
goto err_unregister_bus;
return 0;
err_unregister_bus:
mdiobus_unregister(&ag->mii_bus);
err_free_irqs:
kfree(ag->mii_bus.irq);
err_out:
return err;
}
void ag71xx_mdio_cleanup(struct ag71xx *ag)
{
mdiobus_unregister(&ag->mii_bus);
kfree(ag->mii_bus.irq);
if (ag->phy_dev)
phy_disconnect(ag->phy_dev);
}

6
target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/platform.h
View File

@ -26,6 +26,10 @@ struct ag71xx_platform_data {
u8 mac_addr[ETH_ALEN];
};
struct ag71xx_mdio_platform_data {
u32 phy_mask;
};
struct ar71xx_spi_platform_data {
unsigned bus_num;
unsigned num_chipselect;
@ -43,4 +47,6 @@ extern void ar71xx_set_mac_base(char *mac_str) __init;
extern void ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
u32 phy_mask) __init;
extern void ar71xx_add_device_mdio(u32 phy_mask) __init;
#endif /* __ASM_MACH_AR71XX_PLATFORM_H */

11
target/linux/ar71xx/patches-2.6.26/801-ag71xx_mii_bus_id_fix.patch
View File

@ -1,11 +0,0 @@
--- a/drivers/net/ag71xx/ag71xx_mii.c
+++ b/drivers/net/ag71xx/ag71xx_mii.c
@@ -397,7 +397,7 @@
ag->mii_bus.read = ag71xx_mdio_read;
ag->mii_bus.write = ag71xx_mdio_write;
ag->mii_bus.reset = ag71xx_mdio_reset;
- ag->mii_bus.id = id;
+ snprintf(ag->mii_bus.id, MII_BUS_ID_SIZE, "%x", id);
ag->mii_bus.priv = ag;
ag->mii_bus.dev = &ag->dev->dev;