From d2745cec39dcc7d9957f31874b2e589b06436149 Mon Sep 17 00:00:00 2001 From: Roger Chen Date: Mon, 15 Feb 2016 17:53:46 +0800 Subject: [PATCH] net: stmmac: dwmac-rk: support RK3366 GMAC driver Change-Id: I55886529749f6763fd468a7cf7c78747f76ccefe Signed-off-by: Roger Chen --- .../bindings/net/rockchip-dwmac.txt | 3 +- .../net/ethernet/stmicro/stmmac/dwmac-rk.c | 113 ++++++++++++++++++ 2 files changed, 115 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt index 93eac7ce1446..bf5b03a8d67d 100644 --- a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt +++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt @@ -3,7 +3,8 @@ Rockchip SoC RK3288 10/100/1000 Ethernet driver(GMAC) The device node has following properties. Required properties: - - compatible: Can be one of "rockchip,rk3288-gmac", "rockchip,rk3368-gmac" + - compatible: Can be one of "rockchip,rk3288-gmac", "rockchip,rk3366-gmac", + "rockchip, rk3368-gmac" - reg: addresses and length of the register sets for the device. - interrupts: Should contain the GMAC interrupts. - interrupt-names: Should contain the interrupt names "macirq". diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 0cd3ecff768b..b5669282f020 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -184,6 +184,118 @@ static const struct rk_gmac_ops rk3288_ops = { .set_rmii_speed = rk3288_set_rmii_speed, }; +#define RK3366_GRF_SOC_CON6 0x0418 +#define RK3366_GRF_SOC_CON7 0x041c + +/* RK3366_GRF_SOC_CON6 */ +#define RK3366_GMAC_PHY_INTF_SEL_RGMII (GRF_BIT(9) | GRF_CLR_BIT(10) | \ + GRF_CLR_BIT(11)) +#define RK3366_GMAC_PHY_INTF_SEL_RMII (GRF_CLR_BIT(9) | GRF_CLR_BIT(10) | \ + GRF_BIT(11)) +#define RK3366_GMAC_FLOW_CTRL GRF_BIT(8) +#define RK3366_GMAC_FLOW_CTRL_CLR GRF_CLR_BIT(8) +#define RK3366_GMAC_SPEED_10M GRF_CLR_BIT(7) +#define RK3366_GMAC_SPEED_100M GRF_BIT(7) +#define RK3366_GMAC_RMII_CLK_25M GRF_BIT(3) +#define RK3366_GMAC_RMII_CLK_2_5M GRF_CLR_BIT(3) +#define RK3366_GMAC_CLK_125M (GRF_CLR_BIT(4) | GRF_CLR_BIT(5)) +#define RK3366_GMAC_CLK_25M (GRF_BIT(4) | GRF_BIT(5)) +#define RK3366_GMAC_CLK_2_5M (GRF_CLR_BIT(4) | GRF_BIT(5)) +#define RK3366_GMAC_RMII_MODE GRF_BIT(6) +#define RK3366_GMAC_RMII_MODE_CLR GRF_CLR_BIT(6) + +/* RK3366_GRF_SOC_CON7 */ +#define RK3366_GMAC_TXCLK_DLY_ENABLE GRF_BIT(7) +#define RK3366_GMAC_TXCLK_DLY_DISABLE GRF_CLR_BIT(7) +#define RK3366_GMAC_RXCLK_DLY_ENABLE GRF_BIT(15) +#define RK3366_GMAC_RXCLK_DLY_DISABLE GRF_CLR_BIT(15) +#define RK3366_GMAC_CLK_RX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 8) +#define RK3366_GMAC_CLK_TX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 0) + +static void rk3366_set_to_rgmii(struct rk_priv_data *bsp_priv, + int tx_delay, int rx_delay) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_PHY_INTF_SEL_RGMII | + RK3366_GMAC_RMII_MODE_CLR); + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON7, + RK3366_GMAC_RXCLK_DLY_ENABLE | + RK3366_GMAC_TXCLK_DLY_ENABLE | + RK3366_GMAC_CLK_RX_DL_CFG(rx_delay) | + RK3366_GMAC_CLK_TX_DL_CFG(tx_delay)); +} + +static void rk3366_set_to_rmii(struct rk_priv_data *bsp_priv) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_PHY_INTF_SEL_RMII | RK3366_GMAC_RMII_MODE); +} + +static void rk3366_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + if (speed == 10) + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_CLK_2_5M); + else if (speed == 100) + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_CLK_25M); + else if (speed == 1000) + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_CLK_125M); + else + dev_err(dev, "unknown speed value for RGMII! speed=%d", speed); +} + +static void rk3366_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed) +{ + struct device *dev = &bsp_priv->pdev->dev; + + if (IS_ERR(bsp_priv->grf)) { + dev_err(dev, "%s: Missing rockchip,grf property\n", __func__); + return; + } + + if (speed == 10) { + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_RMII_CLK_2_5M | + RK3366_GMAC_SPEED_10M); + } else if (speed == 100) { + regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, + RK3366_GMAC_RMII_CLK_25M | + RK3366_GMAC_SPEED_100M); + } else { + dev_err(dev, "unknown speed value for RMII! speed=%d", speed); + } +} + +static const struct rk_gmac_ops rk3366_ops = { + .set_to_rgmii = rk3366_set_to_rgmii, + .set_to_rmii = rk3366_set_to_rmii, + .set_rgmii_speed = rk3366_set_rgmii_speed, + .set_rmii_speed = rk3366_set_rmii_speed, +}; + #define RK3368_GRF_SOC_CON15 0x043c #define RK3368_GRF_SOC_CON16 0x0440 @@ -605,6 +717,7 @@ static int rk_gmac_probe(struct platform_device *pdev) static const struct of_device_id rk_gmac_dwmac_match[] = { { .compatible = "rockchip,rk3288-gmac", .data = &rk3288_ops }, + { .compatible = "rockchip,rk3366-gmac", .data = &rk3366_ops }, { .compatible = "rockchip,rk3368-gmac", .data = &rk3368_ops }, { } }; -- 2.34.1