From: Tom Rini <trini@konsulko.com>
Date: Tue, 16 May 2017 18:46:34 +0000 (-0400)
Subject: armv7: Mark the default lowlevel_init function as weak
X-Git-Tag: v2017.07-rc1~82
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ffb56568626be636f0256795df5322633f50cde3;p=platform%2Fkernel%2Fu-boot.git

armv7: Mark the default lowlevel_init function as weak

Rather than have a long and if check in the Makefile, mark the default
lowlevel_init function as weak (as we do on armv8) so that SoCs can
override it if needed, and it will still be discarded if unused.
Provide a weak s_init as well to allow for this to link and be
discarded.

Signed-off-by: Tom Rini <trini@konsulko.com>
---

diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile
index 5fac252..45dd3ca 100644
--- a/arch/arm/cpu/armv7/Makefile
+++ b/arch/arm/cpu/armv7/Makefile
@@ -12,11 +12,9 @@ obj-y	+= cache_v7.o cache_v7_asm.o
 obj-y	+= cpu.o cp15.o
 obj-y	+= syslib.o
 
-ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TEGRA)$(CONFIG_MX6)$(CONFIG_MX7)$(CONFIG_TI81XX)$(CONFIG_AT91FAMILY)$(CONFIG_ARCH_SUNXI)$(CONFIG_ARCH_SOCFPGA)$(CONFIG_ARCH_MX7ULP)$(CONFIG_ARCH_LS1021A),)
 ifneq ($(CONFIG_SKIP_LOWLEVEL_INIT),y)
 obj-y	+= lowlevel_init.o
 endif
-endif
 
 obj-$(CONFIG_ARM_SMCCC)		+= smccc-call.o
 obj-$(CONFIG_ARMV7_NONSEC)	+= nonsec_virt.o virt-v7.o virt-dt.o
diff --git a/arch/arm/cpu/armv7/lowlevel_init.S b/arch/arm/cpu/armv7/lowlevel_init.S
index 658934d..64f1058 100644
--- a/arch/arm/cpu/armv7/lowlevel_init.S
+++ b/arch/arm/cpu/armv7/lowlevel_init.S
@@ -15,7 +15,14 @@
 #include <config.h>
 #include <linux/linkage.h>
 
-ENTRY(lowlevel_init)
+.pushsection .text.s_init, "ax"
+WEAK(s_init)
+	bx	lr
+ENDPROC(s_init)
+.popsection
+
+.pushsection .text.lowlevel_init, "ax"
+WEAK(lowlevel_init)
 	/*
 	 * Setup a temporary stack. Global data is not available yet.
 	 */
@@ -61,3 +68,4 @@ ENTRY(lowlevel_init)
 	bl	s_init
 	pop	{ip, pc}
 ENDPROC(lowlevel_init)
+.popsection