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realtek: mdio: drop family leftovers

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Now that the bus is completely configured by the dts
compatible, drop the hard coded family detection.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21274
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Markus Stockhausen 2025-12-24 13:05:01 +01:00 • committed by Robert Marko
parent 96bcabe1bf
commit b8a596e40b
1 changed files with 1 additions and 37 deletions
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38
target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
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@ -12,11 +12,6 @@
#define RTMDIO_MAX_SMI_BUS 4
#define RTMDIO_PAGE_SELECT 0x1f
#define RTMDIO_838X_FAMILY_ID 0x8380
#define RTMDIO_839X_FAMILY_ID 0x8390
#define RTMDIO_930X_FAMILY_ID 0x9300
#define RTMDIO_931X_FAMILY_ID 0x9310
/* Register base */
#define RTMDIO_SW_BASE ((volatile void *) 0xBB000000)
@ -74,10 +69,6 @@
#define RTMDIO_931X_SERDES_INDRT_ACCESS_CTRL (0x5638)
#define RTMDIO_931X_SERDES_INDRT_DATA_CTRL (0x563C)
/* Other registers */
#define RTMDIO_839X_MODEL_NAME_INFO_REG (0x0ff0)
#define RTMDIO_93XX_MODEL_NAME_INFO_REG (0x0004)
#define sw_r32(reg) readl(RTMDIO_SW_BASE + reg)
#define sw_w32(val, reg) writel(val, RTMDIO_SW_BASE + reg)
#define sw_w32_mask(clear, set, reg) sw_w32((sw_r32(reg) & ~(clear)) | (set), reg)
@ -153,8 +144,6 @@ DEFINE_MUTEX(rtmdio_lock_sds);
struct rtmdio_bus_priv {
const struct rtmdio_config *cfg;
u16 id;
u16 family_id;
int page[RTMDIO_MAX_PORT];
bool raw[RTMDIO_MAX_PORT];
int smi_bus[RTMDIO_MAX_PORT];
@ -1390,39 +1379,14 @@ static int rtmdio_reset(struct mii_bus *bus)
return priv->cfg->reset(bus);
}
/*
* TODO: This is a tiny leftover from the central SoC include. For now try to detect the
* Realtek SoC automatically. This needs to be changed to a proper DTS compatible in a
* future driver version.
*/
static int rtmdio_get_family(void)
{
unsigned int val;
val = sw_r32(RTMDIO_93XX_MODEL_NAME_INFO_REG);
if ((val & 0xfffc0000) == 0x93000000)
return RTMDIO_930X_FAMILY_ID;
if ((val & 0xfffc0000) == 0x93100000)
return RTMDIO_931X_FAMILY_ID;
val = sw_r32(RTMDIO_839X_MODEL_NAME_INFO_REG);
if ((val & 0xfff80000) == 0x83900000)
return RTMDIO_839X_FAMILY_ID;
return RTMDIO_838X_FAMILY_ID;
}
static int rtmdio_probe(struct platform_device *pdev)
{
struct device_node *dn, *mii_np, *pcs_node;
struct device *dev = &pdev->dev;
struct rtmdio_bus_priv *priv;
struct mii_bus *bus;
int i, family;
u32 pn;
family = rtmdio_get_family();
dev_info(dev, "probing RTL%04x family mdio bus\n", family);
int i;
mii_np = of_get_child_by_name(dev->of_node, "mdio-bus");
if (!mii_np)