From: Chris Brandt <chris.brandt@renesas.com>
To: linux@arm.linux.org.uk, arnd@arndb.de
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sh@vger.kernel.org,
Chris Brandt <chris.brandt@renesas.com>
Subject: [PATCH 1/2] ARM: xip: Can't use text area as stack
Date: Thu, 16 Jul 2015 10:37:13 -0400 [thread overview]
Message-ID: <1437057434-1616-2-git-send-email-chris.brandt@renesas.com> (raw)
In-Reply-To: <1437057434-1616-1-git-send-email-chris.brandt@renesas.com>
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(+)
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}
--
1.7.9.5
next prev parent reply other threads:[~2015-07-16 14:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-16 14:37 [PATCH 0/2] ARM: xip: Get XIP for ARMv7 working again Chris Brandt
2015-07-16 14:37 ` Chris Brandt [this message]
2015-07-16 14:37 ` [PATCH 2/2] ARM: xip: Use correct symbol for end of ROM marker Chris Brandt
2015-07-16 16:12 ` Russell King - ARM Linux
2015-07-16 16:23 ` Chris Brandt
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