build/patch/kernel/archive/sunxi-6.2/patches.armbian/drv-net-stmmac-dwmac-sun8i-second-EMAC-clock-register.patch

66 lines
2.4 KiB
Diff

From a07bdcc66e753dd1e954c83dce6fe62b0cadd213 Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@arm.com>
Date: Thu, 10 Dec 2020 14:42:12 +0000
Subject: [PATCH 011/153] drv:net:stmmac:dwmac-sun8i: second EMAC clock
register
The Allwinner H616 SoC has two EMAC controllers, with the second one
being tied to the internal PHY, but also using a separate EMAC clock
register.
To tell the driver about which clock register to use, we add a parameter
to our syscon phandle. The driver will use this value as an index into
the regmap, so that we can address more than the first register, if
needed.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 3fc0fcee4..c830f0584 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -1145,11 +1145,13 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
struct stmmac_resources stmmac_res;
struct sunxi_priv_data *gmac;
struct device *dev = &pdev->dev;
+ struct reg_field syscon_field;
phy_interface_t interface;
int ret;
struct stmmac_priv *priv;
struct net_device *ndev;
struct regmap *regmap;
+ u32 syscon_idx = 0;
ret = stmmac_get_platform_resources(pdev, &stmmac_res);
if (ret)
@@ -1204,8 +1206,12 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
return ret;
}
- gmac->regmap_field = devm_regmap_field_alloc(dev, regmap,
- *gmac->variant->syscon_field);
+ syscon_field = *gmac->variant->syscon_field;
+ ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
+ &syscon_idx);
+ if (!ret)
+ syscon_field.reg += syscon_idx * sizeof(u32);
+ gmac->regmap_field = devm_regmap_field_alloc(dev, regmap, syscon_field);
if (IS_ERR(gmac->regmap_field)) {
ret = PTR_ERR(gmac->regmap_field);
dev_err(dev, "Unable to map syscon register: %d\n", ret);
@@ -1334,6 +1340,8 @@ static const struct of_device_id sun8i_dwmac_match[] = {
.data = &emac_variant_a64 },
{ .compatible = "allwinner,sun50i-h6-emac",
.data = &emac_variant_h6 },
+ { .compatible = "allwinner,sun50i-h616-emac",
+ .data = &emac_variant_h6 },
{ }
};
MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);
--
2.35.3