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ar71xx: fix MII clock settings for various chips, improves ethernet stability on AR934x

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SVN-Revision: 31925
v19.07.3_mercusys_ac12_duma
Felix Fietkau 12 years ago
parent f638414fdc
commit 8039a1bbb2
4 changed files with 30 additions and 5 deletions
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12
target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
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@ -199,17 +199,25 @@ void __init ath79_register_mdio(unsigned int id, u32 phy_mask)
switch (ath79_soc) {
case ATH79_SOC_AR7240:
mdio_data->is_ar7240 = 1;
/* fall through */
case ATH79_SOC_AR7241:
mdio_data->builtin_switch = 1;
break;
case ATH79_SOC_AR9330:
mdio_data->is_ar9330 = 1;
/* fall through */
case ATH79_SOC_AR9331:
mdio_data->is_ar7240 = 1;
mdio_data->builtin_switch = 1;
break;
case ATH79_SOC_AR9341:
case ATH79_SOC_AR9342:
case ATH79_SOC_AR9344:
if (id == 1)
mdio_data->is_ar7240 = 1;
mdio_data->builtin_switch = 1;
mdio_data->is_ar934x = 1;
break;
default:

5
target/linux/ar71xx/files/arch/mips/include/asm/mach-ath79/ag71xx_platform.h
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@ -49,7 +49,10 @@ struct ag71xx_platform_data {
struct ag71xx_mdio_platform_data {
u32 phy_mask;
int is_ar7240;
u8 builtin_switch:1;
u8 is_ar7240:1;
u8 is_ar9330:1;
u8 is_ar934x:1;
};
#endif /* __ASM_MACH_ATH79_PLATFORM_H */

8
target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
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@ -322,6 +322,14 @@ 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_CLK_DIV_34 8
#define MII_CFG_CLK_DIV_42 9
#define MII_CFG_CLK_DIV_50 10
#define MII_CFG_CLK_DIV_58 11
#define MII_CFG_CLK_DIV_66 12
#define MII_CFG_CLK_DIV_74 13
#define MII_CFG_CLK_DIV_82 14
#define MII_CFG_CLK_DIV_98 15
#define MII_CFG_RESET BIT(31)
#define MII_CMD_WRITE 0x0

10
target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c
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@ -103,6 +103,12 @@ static int ag71xx_mdio_reset(struct mii_bus *bus)
if (am->pdata->is_ar7240)
t = MII_CFG_CLK_DIV_6;
else if (am->pdata->is_ar9330)
t = MII_CFG_CLK_DIV_98;
else if (am->pdata->builtin_switch && !am->pdata->is_ar934x)
t = MII_CFG_CLK_DIV_10;
else if (!am->pdata->builtin_switch && am->pdata->is_ar934x)
t = MII_CFG_CLK_DIV_58;
else
t = MII_CFG_CLK_DIV_28;
@ -119,7 +125,7 @@ static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg)
{
struct ag71xx_mdio *am = bus->priv;
if (am->pdata->is_ar7240)
if (am->pdata->builtin_switch)
return ar7240sw_phy_read(bus, addr, reg);
else
return ag71xx_mdio_mii_read(am, addr, reg);
@ -129,7 +135,7 @@ static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
struct ag71xx_mdio *am = bus->priv;
if (am->pdata->is_ar7240)
if (am->pdata->builtin_switch)
ar7240sw_phy_write(bus, addr, reg, val);
else
ag71xx_mdio_mii_write(am, addr, reg, val);

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