ARM: k2g: Update board_name u-boot env variable at runtime

Enable CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG to allow "board_name" to
be set depending on the board it is being ran on.

Update findfdt to use this new dynamic board_name value to determine
which dtb should be used.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/board/ti/ks2_evm/board_k2g.c b/board/ti/ks2_evm/board_k2g.c
index 9001255..fcab9c6 100644 (file)
--- a/board/ti/ks2_evm/board_k2g.c
+++ b/board/ti/ks2_evm/board_k2g.c
@@ -306,6 +306,12 @@ int board_late_init(void)
        board_ti_set_ethaddr(1);
 #endif
 
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+       if (board_is_k2g_gp())
+               setenv("board_name", "66AK2GGP\0");
+       else if (board_is_k2g_ice())
+               setenv("board_name", "66AK2GIC\0");
+#endif
        return 0;
 }
 #endif

diff --git a/include/configs/k2g_evm.h b/include/configs/k2g_evm.h
index 1cc3576..5bf630e 100644 (file)
--- a/include/configs/k2g_evm.h
+++ b/include/configs/k2g_evm.h
@@ -16,6 +16,8 @@
 /* Platform type */
 #define CONFIG_SOC_K2G
 
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
 /* U-Boot general configuration */
 #define CONFIG_EXTRA_ENV_KS2_BOARD_SETTINGS                            \
        DEFAULT_MMC_TI_ARGS                                             \
@@ -28,7 +30,14 @@
        "rd_spec=-\0"                                                   \
        "args_ubi=setenv bootargs ${bootargs} rootfstype=ubifs "        \
        "root=ubi0:rootfs rootflags=sync rw ubi.mtd=ubifs,2048\0"       \
-       "name_fdt=keystone-k2g-evm.dtb\0"                               \
+       "findfdt="\
+               "if test $board_name = 66AK2GGP; then " \
+                        "setenv name_fdt keystone-k2g-evm.dtb; " \
+               "else if test $board_name = 66AK2GIC; then " \
+                        "setenv name_fdt keystone-k2g-ice.dtb; " \
+               "else if test $name_fdt = undefined; then " \
+                       "echo WARNING: Could not determine device tree to use;"\
+               "fi;fi;fi;\0" \
        "name_mon=skern-k2g.bin\0"                                      \
        "name_ubi=k2g-evm-ubifs.ubi\0"                                  \
        "name_uboot=u-boot-spi-k2g-evm.gph\0"                           \
@@ -46,7 +55,7 @@
        "run envboot; "                                                 \
        "run set_name_pmmc init_${boot} init_fw_rd_${boot} "            \
        "get_pmmc_${boot} run_pmmc get_mon_${boot} run_mon "            \
-       "get_fdt_${boot} get_kern_${boot} run_kern"
+       "findfdt get_fdt_${boot} get_kern_${boot} run_kern"
 
 /* SPL SPI Loader Configuration */
 #define CONFIG_SPL_TEXT_BASE           0x0c080000