configs: omap5: Enable custom mmc boot to distroboot for AM57x

TI AM57x boards use a custom (though family common to TI boards) mechanism
for booting Linux. Add support to enable custom MMC boot as a default
option along with the distroboot approach.

Also, add supporting mmc boot environment variables which shall be used for
custom MMC boot

Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
Signed-off-by: Anurag Dutta <a-dutta@ti.com>

diff --git a/include/configs/ti_omap5_common.h b/include/configs/ti_omap5_common.h
index d315a52..ef97711 100644 (file)
--- a/include/configs/ti_omap5_common.h
+++ b/include/configs/ti_omap5_common.h
@@ -240,16 +240,31 @@
                        "echo WARNING: Could not determine device tree to use; fi; \0"
 
 #define BOOT_TARGET_DEVICES(func) \
+       func(TI_MMC, ti_mmc, na) \
        func(MMC, mmc, 0) \
        func(MMC, mmc, 1) \
        func(PXE, pxe, na) \
        func(DHCP, dhcp, na)
 
+#define BOOTENV_DEV_TI_MMC(devtypeu, devtypel, instance)       \
+       "bootcmd_ti_mmc= run get_name_kern; run mmcboot\0"
+
+#define BOOTENV_DEV_NAME_TI_MMC(devtyeu, devtypel, instance)            \
+       "ti_mmc "
+
 #include <config_distro_bootcmd.h>
 
 #define CFG_EXTRA_ENV_SETTINGS \
        DEFAULT_LINUX_BOOT_ENV \
        DEFAULT_MMC_TI_ARGS \
+       "bootpart=0:2\0" \
+       "bootdir=/boot\0" \
+       "get_name_kern=" \
+       "if test $boot_fit -eq 1; then " \
+               "setenv bootfile fitImage; " \
+       "else " \
+               "setenv bootfile zImage; " \
+       "fi\0" \
        DEFAULT_FIT_TI_ARGS \
        "get_fit_config=setenv name_fit_config ${fdtfile}\0" \
        DEFAULT_COMMON_BOOT_TI_ARGS \