From 40c6d8aee40e373db75e6b0b4230fc8e8259d7a6 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 17 Aug 2011 14:24:52 +0100 Subject: ARM: 7022/1: allow to detect conflicting zreladdrs Boards used to specify zreladdr in their Makefile.boot with zreladdr-y := x, so conflicting zreladdrs were silently overwritten. This patch changes this to zreladdr-y += x, so that we end up with multiple words in zreladdr in such a case. We can detect this later and complain if necessary. Signed-off-by: Sascha Hauer Signed-off-by: Russell King --- arch/arm/mach-vexpress/Makefile.boot | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/mach-vexpress') diff --git a/arch/arm/mach-vexpress/Makefile.boot b/arch/arm/mach-vexpress/Makefile.boot index 07c2d9c457ec..8630b3d10a4d 100644 --- a/arch/arm/mach-vexpress/Makefile.boot +++ b/arch/arm/mach-vexpress/Makefile.boot @@ -1,3 +1,3 @@ - zreladdr-y := 0x60008000 + zreladdr-y += 0x60008000 params_phys-y := 0x60000100 initrd_phys-y := 0x60800000 -- cgit v1.2.3 From b3377d1865723cea5334954e6ffcb2182b6689c8 Mon Sep 17 00:00:00 2001 From: Nick Bowler Date: Wed, 24 Aug 2011 18:55:37 +0100 Subject: ARM: 7064/1: vexpress: Use wfi macro in platform_do_lowpower. Current Versatile Express CPU hotplug code includes a hardcoded WFI instruction, in ARM encoding. When the kernel is compiled in Thumb-2 mode, this is invalid and causes the machine to hang hard when a CPU is offlined. Using the wfi macro (which uses the appropriate assembler mnemonic) causes the correct instruction to be emitted in either case. As a consequence of this change, an apparently vestigial "cc" clobber is dropped from the asm (the macro uses "memory" only). Signed-off-by: Nick Bowler Reviewed-by: Jamie Iles Signed-off-by: Russell King --- arch/arm/mach-vexpress/hotplug.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'arch/arm/mach-vexpress') diff --git a/arch/arm/mach-vexpress/hotplug.c b/arch/arm/mach-vexpress/hotplug.c index ea4cbfb90a66..3668cf91d2de 100644 --- a/arch/arm/mach-vexpress/hotplug.c +++ b/arch/arm/mach-vexpress/hotplug.c @@ -13,6 +13,7 @@ #include #include +#include extern volatile int pen_release; @@ -62,13 +63,7 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious) * code will have already disabled interrupts */ for (;;) { - /* - * here's the WFI - */ - asm(".word 0xe320f003\n" - : - : - : "memory", "cc"); + wfi(); if (pen_release == cpu) { /* -- cgit v1.2.3