davinci: RMII support for DA850/OMAP-L138 EVM

DA850/OMAP-L138 EVM has a RMII Ethernet PHY on the UI daughter card. The PHY
is enabled by proper programming of the IO Expander (TCA6416) ports. Also for
RMII PHY to work, the MDIO clock of MII PHY has to be disabled since both the
PHYs have the same address. This is done via the GPIO2[6] pin. This patch adds
support for RMII PHY.

This patch also adds a menuconfig option to select one or no peripheral
connected to expander. Currently, sub-options in this menu are RMII and no
peripheral.This menuconfig option is similar to the one present for UI card on
DA830/OMAP-L137 EVM.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 401bf93fd32..b4cf8b146e8 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -124,6 +124,7 @@ extern const short da850_uart2_pins[];
 extern const short da850_i2c0_pins[];
 extern const short da850_i2c1_pins[];
 extern const short da850_cpgmac_pins[];
+extern const short da850_rmii_pins[];
 extern const short da850_mcasp_pins[];
 extern const short da850_lcdcntl_pins[];
 extern const short da850_mmcsd0_pins[];
diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index b2c1ad035ce..16b8a7fc39b 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -774,6 +774,14 @@ enum davinci_da850_index {
         DA850_MII_RXD_0,
         DA850_MDIO_CLK,
         DA850_MDIO_D,
+        DA850_RMII_TXD_0,
+        DA850_RMII_TXD_1,
+        DA850_RMII_TXEN,
+        DA850_RMII_CRS_DV,
+        DA850_RMII_RXD_0,
+        DA850_RMII_RXD_1,
+        DA850_RMII_RXER,
+        DA850_RMII_MHZ_50_CLK,
 
         /* McASP function */
         DA850_ACLKR,
@@ -881,6 +889,7 @@ enum davinci_da850_index {
         DA850_NEMA_CS_2,
 
         /* GPIO function */
+        DA850_GPIO2_6,
         DA850_GPIO2_8,
         DA850_GPIO2_15,
         DA850_GPIO4_0,