[PATCH] board: atmel: sama7g5ek: avoid rewriting of configured CONFIG_BOOTCOMMAND

[Eugen Hristev <eugen.hristev@microchip.com>]

Rewrite the CONFIG_BOOTCOMMAND only if it's not previously configured from
defconfig file.
This allows the user to select from defconfig/menuconfig the desired
boot command.
Adjust the current board defconfigs to reflect the default booting command
for the specific ENV configuration.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 configs/sama7g5ek_mmc1_defconfig | 2 ++
 configs/sama7g5ek_mmc_defconfig  | 2 ++
 include/configs/sama7g5ek.h      | 6 +++++-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/configs/sama7g5ek_mmc1_defconfig b/configs/sama7g5ek_mmc1_defconfig
index e076e07e11..a78adf0dd8 100644
--- a/configs/sama7g5ek_mmc1_defconfig
+++ b/configs/sama7g5ek_mmc1_defconfig
@@ -18,6 +18,8 @@ CONFIG_FIT=y
 CONFIG_SD_BOOT=y
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/mmcblk1p2 rw rootwait"
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="fatload mmc 1:1 0x61000000 at91-sama7g5ek.dtb; fatload mmc 1:1 0x62000000 zImage; bootz 0x62000000 - 0x61000000"
 CONFIG_MISC_INIT_R=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
diff --git a/configs/sama7g5ek_mmc_defconfig b/configs/sama7g5ek_mmc_defconfig
index 96549c23f8..de845178e6 100644
--- a/configs/sama7g5ek_mmc_defconfig
+++ b/configs/sama7g5ek_mmc_defconfig
@@ -18,6 +18,8 @@ CONFIG_FIT=y
 CONFIG_SD_BOOT=y
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait"
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="fatload mmc 0:1 0x61000000 at91-sama7g5ek.dtb; fatload mmc 0:1 0x62000000 zImage; bootz 0x62000000 - 0x61000000"
 CONFIG_MISC_INIT_R=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
diff --git a/include/configs/sama7g5ek.h b/include/configs/sama7g5ek.h
index 96db82e9d4..07e14ff507 100644
--- a/include/configs/sama7g5ek.h
+++ b/include/configs/sama7g5ek.h
@@ -26,7 +26,7 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0x62000000 /* load address */
 
-#undef CONFIG_BOOTCOMMAND
+#ifndef CONFIG_BOOTCOMMAND
 #ifdef CONFIG_SD_BOOT
 /* u-boot env in sd/mmc card */
 
@@ -34,6 +34,10 @@
 #define CONFIG_BOOTCOMMAND	"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x61000000 at91-sama7g5ek.dtb; " \
 				"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x62000000 zImage; " \
 				"bootz 0x62000000 - 0x61000000"
+#else
+#define CONFIG_BOOTCOMMAND	"Place your bootcommand here"
+#endif
+
 #endif
 
 /* Size of malloc() pool */
-- 
2.25.1