OMAP3: MMC: Add mux for pins

For OMAP3 add MMC1 MMC2 pin mux MMC3 mux is not added as there are
multiple configurations possible, so the muxing is left to be done
in board file.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Chikkature Rajashekar <madhu.cr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 894cc355818a..a2e915639b72 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -513,6 +513,47 @@ static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
                         omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
                 }
         }
+
+        if (cpu_is_omap3430()) {
+                if (controller_nr == 0) {
+                        omap_cfg_reg(N28_3430_MMC1_CLK);
+                        omap_cfg_reg(M27_3430_MMC1_CMD);
+                        omap_cfg_reg(N27_3430_MMC1_DAT0);
+                        if (mmc_controller->slots[0].wires == 4 ||
+                                mmc_controller->slots[0].wires == 8) {
+                                omap_cfg_reg(N26_3430_MMC1_DAT1);
+                                omap_cfg_reg(N25_3430_MMC1_DAT2);
+                                omap_cfg_reg(P28_3430_MMC1_DAT3);
+                        }
+                        if (mmc_controller->slots[0].wires == 8) {
+                                omap_cfg_reg(P27_3430_MMC1_DAT4);
+                                omap_cfg_reg(P26_3430_MMC1_DAT5);
+                                omap_cfg_reg(R27_3430_MMC1_DAT6);
+                                omap_cfg_reg(R25_3430_MMC1_DAT7);
+                        }
+                }
+                if (controller_nr == 1) {
+                        /* MMC2 */
+                        omap_cfg_reg(AE2_3430_MMC2_CLK);
+                        omap_cfg_reg(AG5_3430_MMC2_CMD);
+                        omap_cfg_reg(AH5_3430_MMC2_DAT0);
+
+                        /*
+                         * For 8 wire configurations, Lines DAT4, 5, 6 and 7 need to be muxed
+                         * in the board-*.c files
+                         */
+                        if (mmc_controller->slots[0].wires == 4 ||
+                                mmc_controller->slots[0].wires == 8) {
+                                omap_cfg_reg(AH4_3430_MMC2_DAT1);
+                                omap_cfg_reg(AG4_3430_MMC2_DAT2);
+                                omap_cfg_reg(AF4_3430_MMC2_DAT3);
+                        }
+                }
+
+                /*
+                 * For MMC3 the pins need to be muxed in the board-*.c files
+                 */
+        }
 }
 
 void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,