[U-Boot] [PATCH 1/4] net: enable chip clk for RMII mode.

[Roger Quadros]

From: Lokesh Vutla <lokeshvutla at ti.com>

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 arch/arm/include/asm/arch-omap5/cpu.h | 3 +++
 drivers/net/cpsw.c                    | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-omap5/cpu.h b/arch/arm/include/asm/arch-omap5/cpu.h
index 683d905..c1f1874 100644
--- a/arch/arm/include/asm/arch-omap5/cpu.h
+++ b/arch/arm/include/asm/arch-omap5/cpu.h
@@ -123,9 +123,12 @@ struct watchdog {
 #define GMII2_SEL_MII		(GMII1_SEL_MII << 4)
 #define GMII2_SEL_RMII		(GMII1_SEL_RMII << 4)
 #define GMII2_SEL_RGMII		(GMII1_SEL_RGMII << 4)
+#define RMII1_IO_CLK_EN		BIT(6)
+#define RMII2_IO_CLK_EN		BIT(7)
 
 #define MII_MODE_ENABLE		(GMII1_SEL_MII | GMII2_SEL_MII)
 #define RMII_MODE_ENABLE        (GMII1_SEL_RMII | GMII2_SEL_RMII)
 #define RGMII_MODE_ENABLE	(GMII1_SEL_RGMII | GMII2_SEL_RGMII)
+#define RMII_CHIPCKL_ENABLE     (RMII1_IO_CLK_EN | RMII2_IO_CLK_EN)
 
 #endif /* _CPU_H */
diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
index 81ccc61..f1c424c 100644
--- a/drivers/net/cpsw.c
+++ b/drivers/net/cpsw.c
@@ -1298,7 +1298,8 @@ static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
 		writel(MII_MODE_ENABLE, priv->data.gmii_sel);
 		break;
 	case PHY_INTERFACE_MODE_RMII:
-		writel(RMII_MODE_ENABLE, priv->data.gmii_sel);
+		writel(RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE,
+		       priv->data.gmii_sel);
 		break;
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
-- 
2.7.4