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Message-ID: <20220629025109.21933-4-biao.huang@mediatek.com>
Date: Wed, 29 Jun 2022 10:51:02 +0800
From: Biao Huang <biao.huang@...iatek.com>
To: David Miller <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
"Rob Herring" <robh+dt@...nel.org>,
Bartosz Golaszewski <brgl@...ev.pl>,
"Fabien Parent" <fparent@...libre.com>
CC: Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
Sean Wang <sean.wang@...iatek.com>,
Mark Lee <Mark-MC.Lee@...iatek.com>,
"Matthias Brugger" <matthias.bgg@...il.com>,
<netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>,
Biao Huang <biao.huang@...iatek.com>,
Yinghua Pan <ot_yinghua.pan@...iatek.com>,
Macpaul Lin <macpaul.lin@...iatek.com>
Subject: [PATCH net-next v4 03/10] net: ethernet: mtk-star-emac: add support for MT8365 SoC
Add Ethernet driver support for MT8365 SoC.
Signed-off-by: Biao Huang <biao.huang@...iatek.com>
Signed-off-by: Yinghua Pan <ot_yinghua.pan@...iatek.com>
Signed-off-by: Fabien Parent <fparent@...libre.com>
---
drivers/net/ethernet/mediatek/mtk_star_emac.c | 75 ++++++++++++++++---
1 file changed, 64 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c
index f161a55bd09a..3776af9ac1ff 100644
--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
+++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
@@ -150,6 +150,7 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" };
#define MTK_STAR_REG_MAC_CLK_CONF 0x00ac
#define MTK_STAR_MSK_MAC_CLK_CONF GENMASK(7, 0)
#define MTK_STAR_BIT_CLK_DIV_10 0x0a
+#define MTK_STAR_BIT_CLK_DIV_50 0x32
/* Counter registers. */
#define MTK_STAR_REG_C_RXOKPKT 0x0100
@@ -182,9 +183,11 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" };
#define MTK_STAR_REG_C_RX_TWIST 0x0218
/* Ethernet CFG Control */
-#define MTK_PERICFG_REG_NIC_CFG_CON 0x03c4
-#define MTK_PERICFG_MSK_NIC_CFG_CON_CFG_MII GENMASK(3, 0)
-#define MTK_PERICFG_BIT_NIC_CFG_CON_RMII BIT(0)
+#define MTK_PERICFG_REG_NIC_CFG0_CON 0x03c4
+#define MTK_PERICFG_REG_NIC_CFG1_CON 0x03c8
+#define MTK_PERICFG_REG_NIC_CFG_CON_V2 0x0c10
+#define MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF GENMASK(3, 0)
+#define MTK_PERICFG_BIT_NIC_CFG_CON_RMII 1
/* Represents the actual structure of descriptors used by the MAC. We can
* reuse the same structure for both TX and RX - the layout is the same, only
@@ -233,6 +236,7 @@ struct mtk_star_ring {
};
struct mtk_star_compat {
+ int (*set_interface_mode)(struct net_device *ndev);
unsigned char bit_clk_div;
};
@@ -908,13 +912,6 @@ static void mtk_star_init_config(struct mtk_star_priv *priv)
priv->compat_data->bit_clk_div);
}
-static void mtk_star_set_mode_rmii(struct mtk_star_priv *priv)
-{
- regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG_CON,
- MTK_PERICFG_MSK_NIC_CFG_CON_CFG_MII,
- MTK_PERICFG_BIT_NIC_CFG_CON_RMII);
-}
-
static int mtk_star_enable(struct net_device *ndev)
{
struct mtk_star_priv *priv = netdev_priv(ndev);
@@ -1530,7 +1527,13 @@ static int mtk_star_probe(struct platform_device *pdev)
return -ENODEV;
}
- mtk_star_set_mode_rmii(priv);
+ if (priv->compat_data->set_interface_mode) {
+ ret = priv->compat_data->set_interface_mode(ndev);
+ if (ret) {
+ dev_err(dev, "Failed to set phy interface, err = %d\n", ret);
+ return -EINVAL;
+ }
+ }
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
if (ret) {
@@ -1564,10 +1567,58 @@ static int mtk_star_probe(struct platform_device *pdev)
}
#ifdef CONFIG_OF
+static int mt8516_set_interface_mode(struct net_device *ndev)
+{
+ struct mtk_star_priv *priv = netdev_priv(ndev);
+ struct device *dev = mtk_star_get_dev(priv);
+ unsigned int intf_val;
+
+ switch (priv->phy_intf) {
+ case PHY_INTERFACE_MODE_RMII:
+ intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII;
+ break;
+ default:
+ dev_err(dev, "This interface not supported\n");
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(priv->pericfg,
+ MTK_PERICFG_REG_NIC_CFG0_CON,
+ MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF,
+ intf_val);
+}
+
+static int mt8365_set_interface_mode(struct net_device *ndev)
+{
+ struct mtk_star_priv *priv = netdev_priv(ndev);
+ struct device *dev = mtk_star_get_dev(priv);
+ unsigned int intf_val;
+
+ switch (priv->phy_intf) {
+ case PHY_INTERFACE_MODE_RMII:
+ intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII;
+ break;
+ default:
+ dev_err(dev, "This interface not supported\n");
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(priv->pericfg,
+ MTK_PERICFG_REG_NIC_CFG_CON_V2,
+ MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF,
+ intf_val);
+}
+
static const struct mtk_star_compat mtk_star_mt8516_compat = {
+ .set_interface_mode = mt8516_set_interface_mode,
.bit_clk_div = MTK_STAR_BIT_CLK_DIV_10,
};
+static const struct mtk_star_compat mtk_star_mt8365_compat = {
+ .set_interface_mode = mt8365_set_interface_mode,
+ .bit_clk_div = MTK_STAR_BIT_CLK_DIV_50,
+};
+
static const struct of_device_id mtk_star_of_match[] = {
{ .compatible = "mediatek,mt8516-eth",
.data = &mtk_star_mt8516_compat },
@@ -1575,6 +1626,8 @@ static const struct of_device_id mtk_star_of_match[] = {
.data = &mtk_star_mt8516_compat },
{ .compatible = "mediatek,mt8175-eth",
.data = &mtk_star_mt8516_compat },
+ { .compatible = "mediatek,mt8365-eth",
+ .data = &mtk_star_mt8365_compat },
{ }
};
MODULE_DEVICE_TABLE(of, mtk_star_of_match);
--
2.25.1
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