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.toms...@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;
--
2.1.4
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