[U-Boot] [RFC PATCH 1/3] ARM: mx6: preserve Boot ROM stack in SPL

[Eric Nelson]

The i.MX6 Boot ROM starts its' stack at 0x091ffb4 and appears
to be a little less than 256 bytes deep when starting U-Boot.

This was determined experimentally on i.MX6DL and i.MX6SL.

Allow this stack to be preserved to simplify returning to
ROM when SPL is loaded as a plugin.

Signed-off-by: Eric Nelson <eric at nelint.com>
---
 include/configs/imx6_spl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/configs/imx6_spl.h b/include/configs/imx6_spl.h
index 76d1ca0..fb1b237 100644
--- a/include/configs/imx6_spl.h
+++ b/include/configs/imx6_spl.h
@@ -28,7 +28,7 @@
 #define CONFIG_SPL_LDSCRIPT	"arch/arm/cpu/armv7/omap-common/u-boot-spl.lds"
 #define CONFIG_SPL_TEXT_BASE		0x00908000
 #define CONFIG_SPL_MAX_SIZE		0x10000
-#define CONFIG_SPL_STACK		0x0091FFB8
+#define CONFIG_SPL_STACK		0x0091FEB8
 
 /* NAND support */
 #if defined(CONFIG_SPL_NAND_SUPPORT)
-- 
2.7.4