diff --git a/configs/at91sam9x5ek_mmc_defconfig b/configs/at91sam9x5ek_mmc_defconfig
index 13ccaec..cfd2dcd 100644
--- a/configs/at91sam9x5ek_mmc_defconfig
+++ b/configs/at91sam9x5ek_mmc_defconfig
@@ -14,6 +14,8 @@
 CONFIG_DEBUG_UART_CLOCK=132000000
 CONFIG_SYS_LOAD_ADDR=0x22000000
 CONFIG_DEBUG_UART=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x20003ef0
 CONFIG_FIT=y
 CONFIG_SD_BOOT=y
 CONFIG_BOOTDELAY=3