[PATCH 2/5] at91: introduce AT91_LOAD_BAREBOX_SRAM to specifcy which size load for external boot

[Jean-Christophe PLAGNIOL-VILLARD]

Some SoC as sam9261 or sam9263 have enough sram to directly load a barebox
from external boot.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 arch/arm/mach-at91/Kconfig                         |   11 +++++++++++
 arch/arm/mach-at91/include/mach/barebox-arm-head.h |    2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 0216a7e..661ff35 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -62,6 +62,9 @@ config AT91SAM9_RESET
 config AT91SAM9G45_RESET
 	bool
 
+config HAVE_AT91_LOAD_BAREBOX_SRAM
+	bool
+
 config AT91SAM9_LOWLEVEL_INIT
 	bool
 
@@ -101,6 +104,7 @@ config SOC_AT91SAM9263
 	select HAS_MACB
 	select AT91SAM9_RESET
 	select AT91SAM9_LOWLEVEL_INIT
+	select HAVE_AT91_LOAD_BAREBOX_SRAM
 
 config SOC_AT91SAM9G45
 	bool
@@ -148,6 +152,7 @@ config ARCH_AT91SAM9260
 config ARCH_AT91SAM9261
 	bool "AT91SAM9261"
 	select SOC_AT91SAM9261
+	select HAVE_AT91_LOAD_BAREBOX_SRAM
 
 config ARCH_AT91SAM9263
 	bool "AT91SAM9263"
@@ -517,4 +522,10 @@ config AT91_BOOTSTRAP
 	depends on MACH_HAS_LOWLEVEL_INIT
 	select BOOTSTRAP
 
+config AT91_LOAD_BAREBOX_SRAM
+	bool "at91 laad barebox in sram"
+	depends on MACH_HAS_LOWLEVEL_INIT
+	depends on SHELL_NONE || HAVE_AT91_LOAD_BAREBOX_SRAM
+	default y if SHELL_NONE
+
 endif
diff --git a/arch/arm/mach-at91/include/mach/barebox-arm-head.h b/arch/arm/mach-at91/include/mach/barebox-arm-head.h
index a9c8dd4..7d6a009 100644
--- a/arch/arm/mach-at91/include/mach/barebox-arm-head.h
+++ b/arch/arm/mach-at91/include/mach/barebox-arm-head.h
@@ -1,7 +1,7 @@
 #ifndef __MACH_ARM_HEAD_H
 #define __MACH_ARM_HEAD_H
 
-#ifdef CONFIG_SHELL_NONE
+#ifdef CONFIG_AT91_LOAD_BAREBOX_SRAM
 #define AT91_EXV6	".word _barebox_image_size\n"
 #else
 #define AT91_EXV6	".word _barebox_bare_init_size\n"
-- 
1.7.10.4