66 lines
2.4 KiB
Diff
66 lines
2.4 KiB
Diff
From 5f6753271bbd6296f2b91d4491f36fb03b697b97 Mon Sep 17 00:00:00 2001
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From: Andre Przywara <andre.przywara@arm.com>
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Date: Thu, 10 Dec 2020 14:42:12 +0000
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Subject: [PATCH 015/170] drv:net:stmmac:dwmac-sun8i: second EMAC clock
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register
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The Allwinner H616 SoC has two EMAC controllers, with the second one
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being tied to the internal PHY, but also using a separate EMAC clock
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register.
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To tell the driver about which clock register to use, we add a parameter
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to our syscon phandle. The driver will use this value as an index into
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the regmap, so that we can address more than the first register, if
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needed.
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Signed-off-by: Andre Przywara <andre.przywara@arm.com>
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---
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drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 12 ++++++++++--
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1 file changed, 10 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
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index 3fc0fcee4..c830f0584 100644
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--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
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+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
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@@ -1145,11 +1145,13 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
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struct stmmac_resources stmmac_res;
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struct sunxi_priv_data *gmac;
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struct device *dev = &pdev->dev;
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+ struct reg_field syscon_field;
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phy_interface_t interface;
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int ret;
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struct stmmac_priv *priv;
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struct net_device *ndev;
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struct regmap *regmap;
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+ u32 syscon_idx = 0;
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ret = stmmac_get_platform_resources(pdev, &stmmac_res);
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if (ret)
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@@ -1204,8 +1206,12 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
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return ret;
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}
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- gmac->regmap_field = devm_regmap_field_alloc(dev, regmap,
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- *gmac->variant->syscon_field);
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+ syscon_field = *gmac->variant->syscon_field;
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+ ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
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+ &syscon_idx);
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+ if (!ret)
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+ syscon_field.reg += syscon_idx * sizeof(u32);
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+ gmac->regmap_field = devm_regmap_field_alloc(dev, regmap, syscon_field);
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if (IS_ERR(gmac->regmap_field)) {
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ret = PTR_ERR(gmac->regmap_field);
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dev_err(dev, "Unable to map syscon register: %d\n", ret);
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@@ -1334,6 +1340,8 @@ static const struct of_device_id sun8i_dwmac_match[] = {
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.data = &emac_variant_a64 },
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{ .compatible = "allwinner,sun50i-h6-emac",
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.data = &emac_variant_h6 },
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+ { .compatible = "allwinner,sun50i-h616-emac",
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+ .data = &emac_variant_h6 },
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{ }
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};
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MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);
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--
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2.35.3
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