[PATCH 1/4] ARM: start: Fix arm_mem_barebox_image for !CONFIG_RELOCATABLE

[Sascha Hauer <s.hauer@pengutronix.de>]

Fixes: 65071bd arm: Clarify memory layout calculation

arm_mem_barebox_image() shall return the beginning of the barebox
image (and thus the end of the malloc region). For relocatable
images we can return a suitable location, but for non relocatable
images we do not have a choice: We must return TEXT_BASE. If TEXT_BASE
happens to be outside the memory region between membase and endmem
we can return the base of the ramoops area.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Markus Pargmann <mpa@pengutronix.de>
---
 arch/arm/include/asm/barebox-arm.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/barebox-arm.h b/arch/arm/include/asm/barebox-arm.h
index 8e7b45c..0acdfa3 100644
--- a/arch/arm/include/asm/barebox-arm.h
+++ b/arch/arm/include/asm/barebox-arm.h
@@ -143,9 +143,13 @@ static inline unsigned long arm_mem_barebox_image(unsigned long membase,
 	if (IS_ENABLED(CONFIG_RELOCATABLE)) {
 		endmem -= size;
 		endmem &= ~(SZ_1M - 1);
+		return endmem;
+	} else {
+		if (TEXT_BASE >= membase && TEXT_BASE < endmem)
+			return TEXT_BASE;
+		else
+			return endmem;
 	}
-
-	return endmem;
 }
 
 #define ENTRY_FUNCTION(name, arg0, arg1, arg2)				\
-- 
2.8.1


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox