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ath79: ag71xx: apply interface mode to MII0/1_CTRL on ar71xx/ar913x

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We currently don't have any code configuring interface mode in ath79,
meaning that we relies on bootloader to set the correct interface mode.

This patch added code to set interface correctly so that everything works
even if bootloader configures it wrong.(e.g. on WNDR3800 u-boot set
the second GMAC mode to RMII but it should be RGMII.)

Introduced "qca,mac-idx" for the difference in MII_CTRL register value.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
This commit is contained in:
Chuanhong Guo 2018-08-21 19:39:16 +08:00 committed by John Crispin
parent 9300eda00f
commit 028daa9974
4 changed files with 73 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/linux/ath79/dts/ar7100.dtsi
View File

@ -182,6 +182,7 @@
resets = <&rst 9>;
reset-names = "mac";
qca,mac-idx = <0>;
};
&mdio1 {
@ -201,4 +202,5 @@
resets = <&rst 13>;
reset-names = "mac";
qca,mac-idx = <1>;
};

1
target/linux/ath79/dts/ar9132.dtsi
View File

@ -193,4 +193,5 @@
pll-handle = <&pll>;
resets = <&rst 9>;
reset-names = "mac";
qca,mac-idx = <0>;
};

2
target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
View File

@ -154,6 +154,8 @@ struct ag71xx {
struct ag71xx_ring rx_ring ____cacheline_aligned;
struct ag71xx_ring tx_ring ____cacheline_aligned;
int mac_idx;
u16 desc_pktlen_mask;
u16 rx_buf_size;
u8 rx_buf_offset;

68
target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
View File

@ -529,6 +529,60 @@ static void ath79_set_pll(struct ag71xx *ag)
udelay(100);
}
static void ath79_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if)
{
u32 t;
t = __raw_readl(ag->mii_base);
t &= ~(AR71XX_MII_CTRL_IF_MASK);
t |= (mii_if & AR71XX_MII_CTRL_IF_MASK);
__raw_writel(t, ag->mii_base);
}
static void ath79_mii0_ctrl_set_if(struct ag71xx *ag)
{
unsigned int mii_if;
switch (ag->phy_if_mode) {
case PHY_INTERFACE_MODE_MII:
mii_if = AR71XX_MII0_CTRL_IF_MII;
break;
case PHY_INTERFACE_MODE_GMII:
mii_if = AR71XX_MII0_CTRL_IF_GMII;
break;
case PHY_INTERFACE_MODE_RGMII:
mii_if = AR71XX_MII0_CTRL_IF_RGMII;
break;
case PHY_INTERFACE_MODE_RMII:
mii_if = AR71XX_MII0_CTRL_IF_RMII;
break;
default:
WARN(1, "Impossible PHY mode defined.\n");
return;
}
ath79_mii_ctrl_set_if(ag, mii_if);
}
static void ath79_mii1_ctrl_set_if(struct ag71xx *ag)
{
unsigned int mii_if;
switch (ag->phy_if_mode) {
case PHY_INTERFACE_MODE_RMII:
mii_if = AR71XX_MII1_CTRL_IF_RMII;
break;
case PHY_INTERFACE_MODE_RGMII:
mii_if = AR71XX_MII1_CTRL_IF_RGMII;
break;
default:
WARN(1, "Impossible PHY mode defined.\n");
return;
}
ath79_mii_ctrl_set_if(ag, mii_if);
}
static void ath79_mii_ctrl_set_speed(struct ag71xx *ag)
{
unsigned int mii_speed;
@ -1427,6 +1481,20 @@ static int ag71xx_probe(struct platform_device *pdev)
goto err_free;
}
if (of_property_read_u32(np, "qca,mac-idx", &ag->mac_idx))
ag->mac_idx = -1;
if (ag->mii_base)
switch (ag->mac_idx) {
case 0:
ath79_mii0_ctrl_set_if(ag);
break;
case 1:
ath79_mii1_ctrl_set_if(ag);
break;
default:
break;
}
netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);