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[1/2] ARM: xip: Can't use text area as stack

Message ID 1437057434-1616-2-git-send-email-chris.brandt@renesas.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Chris Brandt July 16, 2015, 2:37 p.m. UTC 
For an XIP_KERNEL build, ROM and RAM are separated, so we can't reserve
code space to serve as a temporary stack.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 arch/arm/mm/proc-v7.S |    4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 0716bbe..8559449 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -412,7 +412,11 @@  __v7_pj4b_setup:
 #endif /* CONFIG_CPU_PJ4B */
 
 __v7_setup:
+#ifndef CONFIG_XIP_KERNEL
 	adr	r12, __v7_setup_stack		@ the local stack
+#else
+	ldr	r12, =PLAT_PHYS_OFFSET		@ the local stack
+#endif
 	stmia	r12, {r0-r5, r7, r9, r11, lr}
 	bl      v7_invalidate_l1
 	ldmia	r12, {r0-r5, r7, r9, r11, lr}