ARM: meson-gx: Reset GXL/GXM to external PHY when not using internal PHY

When using External PHY, reset the mux to use the external PHY in case U-Boot
was chainloaded from a misconfigured bootloader.

Fixes: 33e3378091 ("ARM: meson: rework soc arch file to prepare for new SoC")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

diff --git a/arch/arm/mach-meson/board-gx.c b/arch/arm/mach-meson/board-gx.c
index 5b0126a..ab8f1a8 100644 (file)
--- a/arch/arm/mach-meson/board-gx.c
+++ b/arch/arm/mach-meson/board-gx.c
@@ -117,6 +117,11 @@ void meson_eth_init(phy_interface_t mode, unsigned int flags)
                             GX_ETH_REG_0_TX_RATIO(4) |
                             GX_ETH_REG_0_PHY_CLK_EN |
                             GX_ETH_REG_0_CLK_EN);
+
+               /* Reset to external PHY */
+               if(!IS_ENABLED(CONFIG_MESON_GXBB))
+                       writel(0x2009087f, GX_ETH_REG_3);
+
                break;
 
        case PHY_INTERFACE_MODE_RMII:
@@ -124,11 +129,13 @@ void meson_eth_init(phy_interface_t mode, unsigned int flags)
                out_le32(GX_ETH_REG_0, GX_ETH_REG_0_INVERT_RMII_CLK |
                                         GX_ETH_REG_0_CLK_EN);
 
-               /* Use GXL RMII Internal PHY */
-               if (IS_ENABLED(CONFIG_MESON_GXL) &&
-                   (flags & MESON_USE_INTERNAL_RMII_PHY)) {
-                       writel(0x10110181, GX_ETH_REG_2);
-                       writel(0xe40908ff, GX_ETH_REG_3);
+               /* Use GXL RMII Internal PHY (also on GXM) */
+               if (!IS_ENABLED(CONFIG_MESON_GXBB)) {
+                       if ((flags & MESON_USE_INTERNAL_RMII_PHY)) {
+                               writel(0x10110181, GX_ETH_REG_2);
+                               writel(0xe40908ff, GX_ETH_REG_3);
+                       } else
+                               writel(0x2009087f, GX_ETH_REG_3);
                }
 
                break;