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kernel: rtl8366_smi: explicitly set phy addr for switch

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By default rtl8366_smi use phy addr 0 at mii-bus to access switch registers.
This patch allow to set it explicitly in dts-file:

	rtl8367 {
		compatible = "realtek,rtl8367b";
		phy-id = <29>; /* switch address at mii-bus */
		realtek,extif2 = <1 0 1 1 1 1 1 1 2>;
		mii-bus = <&mdio>;
		cpu-port = <7>;
	}

Use default 0 address if not set.
Backward compatibility tested on tplink archer c2 v1 (rtl8367rb switch)

Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru>
[code style fixes, add explicit phy_id assignment in probe_plat, use
phy-id instead of phy_id for of property name]
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
[rebase]
Signed-off-by: Gaspare Bruno <gaspare@anlix.io>
[added phy_id to struct rtl8366_smi]
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
This commit is contained in:
Mieczyslaw Nalewaj 2024-02-14 13:14:10 +01:00 committed by Hauke Mehrtens
parent 79dae14157
commit dca146cc77
2 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
View File

@ -256,7 +256,7 @@ static int __rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
int __rtl8366_mdio_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data) int __rtl8366_mdio_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
{ {
u32 phy_id = MDC_REALTEK_PHY_ADDR; u32 phy_id = smi->phy_id;
struct mii_bus *mbus = smi->ext_mbus; struct mii_bus *mbus = smi->ext_mbus;
BUG_ON(in_interrupt()); BUG_ON(in_interrupt());
@ -293,7 +293,7 @@ int __rtl8366_mdio_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
static int __rtl8366_mdio_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data) static int __rtl8366_mdio_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
{ {
u32 phy_id = MDC_REALTEK_PHY_ADDR; u32 phy_id = smi->phy_id;
struct mii_bus *mbus = smi->ext_mbus; struct mii_bus *mbus = smi->ext_mbus;
BUG_ON(in_interrupt()); BUG_ON(in_interrupt());
@ -1547,6 +1547,9 @@ int rtl8366_smi_probe_of(struct platform_device *pdev, struct rtl8366_smi *smi)
goto try_gpio; goto try_gpio;
} }
if (of_property_read_u32(np, "phy-id", &smi->phy_id))
smi->phy_id = MDC_REALTEK_PHY_ADDR;
return 0; return 0;
try_gpio: try_gpio:
@ -1586,6 +1589,7 @@ int rtl8366_smi_probe_plat(struct platform_device *pdev, struct rtl8366_smi *smi
smi->gpio_sda = pdata->gpio_sda; smi->gpio_sda = pdata->gpio_sda;
smi->gpio_sck = pdata->gpio_sck; smi->gpio_sck = pdata->gpio_sck;
smi->hw_reset = pdata->hw_reset; smi->hw_reset = pdata->hw_reset;
smi->phy_id = MDC_REALTEK_PHY_ADDR;
return 0; return 0;
} }

1
target/linux/generic/files/drivers/net/phy/rtl8366_smi.h
View File

@ -63,6 +63,7 @@ struct rtl8366_smi {
u16 dbg_reg; u16 dbg_reg;
u8 dbg_vlan_4k_page; u8 dbg_vlan_4k_page;
#endif #endif
u32 phy_id;
struct mii_bus *ext_mbus; struct mii_bus *ext_mbus;
}; };