mx6qsabre{sd, auto}: Add update_sd_firmware support
This allow for easy update of firmware in the SD card from a running
U-Boot.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/include/configs/mx6qsabre_common.h b/include/configs/mx6qsabre_common.h
index f5f115f..7298a76 100644
--- a/include/configs/mx6qsabre_common.h
+++ b/include/configs/mx6qsabre_common.h
@@ -78,6 +78,7 @@
#define CONFIG_CMD_BMODE
#define CONFIG_CMD_BOOTZ
+#define CONFIG_CMD_SETEXPR
#undef CONFIG_CMD_IMLS
#define CONFIG_BOOTDELAY 1
@@ -98,6 +99,19 @@
"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
"mmcpart=" __stringify(CONFIG_SYS_MMC_ENV_PART) "\0" \
"mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
+ "update_sd_firmware=" \
+ "if test ${ip_dyn} = yes; then " \
+ "setenv get_cmd dhcp; " \
+ "else " \
+ "setenv get_cmd tftp; " \
+ "fi; " \
+ "if mmc dev ${mmcdev}; then " \
+ "if ${get_cmd} ${update_sd_firmware_filename}; then " \
+ "setexpr fw_sz ${filesize} / 0x200; " \
+ "setexpr fw_sz ${fw_sz} + 1; " \
+ "mmc write ${loadaddr} 0x2 ${fw_sz}; " \
+ "fi; " \
+ "fi\0" \
"mmcargs=setenv bootargs console=${console},${baudrate} " \
"root=${mmcroot}\0" \
"loadbootscript=" \