To add GMAC (Gigabit Ethernet) support (limited to RGMII only at this point), we need support for additional pin-configuration. This commit adds the pinctrl support for GMAC in RGMII mode: * adds a PERIPH_ID_GMAC and the mapping from IRQ number to PERIPH_ID * configures the RGMII pins
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com ---
drivers/pinctrl/rockchip/pinctrl_rk3368.c | 36 +++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+)
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3368.c b/drivers/pinctrl/rockchip/pinctrl_rk3368.c index b77c5ab..aecd11d 100644 --- a/drivers/pinctrl/rockchip/pinctrl_rk3368.c +++ b/drivers/pinctrl/rockchip/pinctrl_rk3368.c @@ -54,6 +54,33 @@ static void pinctrl_rk3368_uart_config(struct rk3368_pinctrl_priv *priv, } }
+#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP) +static void pinctrl_rk3368_gmac_config(struct rk3368_grf *grf, int gmac_id) +{ + rk_clrsetreg(&grf->gpio3b_iomux, + RK3368_GPIO3B0_MASK | RK3368_GPIO3B1_MASK | + RK3368_GPIO3B2_MASK | RK3368_GPIO3B5_MASK | + RK3368_GPIO3B6_MASK | RK3368_GPIO3B7_MASK, + RK3368_GPIO3B0_MAC_TXD0 | RK3368_GPIO3B1_MAC_TXD1 | + RK3368_GPIO3B2_MAC_TXD2 | RK3368_GPIO3B5_MAC_TXEN | + RK3368_GPIO3B6_MAC_TXD3 | RK3368_GPIO3B7_MAC_RXD0); + rk_clrsetreg(&grf->gpio3c_iomux, + RK3368_GPIO3C0_MASK | RK3368_GPIO3C1_MASK | + RK3368_GPIO3C2_MASK | RK3368_GPIO3C3_MASK | + RK3368_GPIO3C4_MASK | RK3368_GPIO3C5_MASK | + RK3368_GPIO3C6_MASK, + RK3368_GPIO3C0_MAC_RXD1 | RK3368_GPIO3C1_MAC_RXD2 | + RK3368_GPIO3C2_MAC_RXD3 | RK3368_GPIO3C3_MAC_MDC | + RK3368_GPIO3C4_MAC_RXDV | RK3368_GPIO3C5_MAC_RXEN | + RK3368_GPIO3C6_MAC_CLK); + rk_clrsetreg(&grf->gpio3d_iomux, + RK3368_GPIO3D0_MASK | RK3368_GPIO3D1_MASK | + RK3368_GPIO3D4_MASK, + RK3368_GPIO3D0_MAC_MDIO | RK3368_GPIO3D1_MAC_RXCLK | + RK3368_GPIO3D4_MAC_TXCLK); +} +#endif + static int rk3368_pinctrl_request(struct udevice *dev, int func, int flags) { struct rk3368_pinctrl_priv *priv = dev_get_priv(dev); @@ -67,6 +94,11 @@ static int rk3368_pinctrl_request(struct udevice *dev, int func, int flags) case PERIPH_ID_UART4: pinctrl_rk3368_uart_config(priv, func); break; +#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP) + case PERIPH_ID_GMAC: + pinctrl_rk3368_gmac_config(priv->grf, func); + break; +#endif default: return -EINVAL; } @@ -96,6 +128,10 @@ static int rk3368_pinctrl_get_periph_id(struct udevice *dev, return PERIPH_ID_UART1; case 55: return PERIPH_ID_UART0; +#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP) + case 27: + return PERIPH_ID_GMAC; +#endif }
return -ENOENT;