From 3f9eaf0984952f69cb2d0c1b0f99b95b74742094 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Mon, 2 Aug 2010 13:18:18 +0300 Subject: [PATCH] omap4: Add smc API to read AuxCoreBoot0 register This patch adds a secure API to read AuxCoreBoot0 register to check the cpu boot status. It also moves the other smc APIs to common omap44xx-smc.S. This APIs should not be marked as __INIT because we need these to be present for CPU hotplug Signed-off-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap-headsmp.S | 16 ---------------- arch/arm/mach-omap2/omap44xx-smc.S | 25 +++++++++++++++++++++++++ arch/arm/plat-omap/include/plat/smp.h | 1 + 3 files changed, 26 insertions(+), 16 deletions(-) diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S index ef0e7a00dd6c..6ae937a06cc1 100644 --- a/arch/arm/mach-omap2/omap-headsmp.S +++ b/arch/arm/mach-omap2/omap-headsmp.S @@ -47,19 +47,3 @@ hold: ldr r12,=0x103 b secondary_startup END(omap_secondary_startup) - -ENTRY(omap_modify_auxcoreboot0) - stmfd sp!, {r1-r12, lr} - ldr r12, =0x104 - dsb - smc #0 - ldmfd sp!, {r1-r12, pc} -END(omap_modify_auxcoreboot0) - -ENTRY(omap_auxcoreboot_addr) - stmfd sp!, {r2-r12, lr} - ldr r12, =0x105 - dsb - smc #0 - ldmfd sp!, {r2-r12, pc} -END(omap_auxcoreboot_addr) diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap44xx-smc.S index f61c7771ca47..1980dc31a1a2 100644 --- a/arch/arm/mach-omap2/omap44xx-smc.S +++ b/arch/arm/mach-omap2/omap44xx-smc.S @@ -30,3 +30,28 @@ ENTRY(omap_smc1) smc #0 ldmfd sp!, {r2-r12, pc} END(omap_smc1) + +ENTRY(omap_modify_auxcoreboot0) + stmfd sp!, {r1-r12, lr} + ldr r12, =0x104 + dsb + smc #0 + ldmfd sp!, {r1-r12, pc} +END(omap_modify_auxcoreboot0) + +ENTRY(omap_auxcoreboot_addr) + stmfd sp!, {r2-r12, lr} + ldr r12, =0x105 + dsb + smc #0 + ldmfd sp!, {r2-r12, pc} +END(omap_auxcoreboot_addr) + +ENTRY(omap_read_auxcoreboot0) + stmfd sp!, {r2-r12, lr} + ldr r12, =0x103 + dsb + smc #0 + mov r0, r0, lsr #9 + ldmfd sp!, {r2-r12, pc} +END(omap_read_auxcoreboot0) diff --git a/arch/arm/plat-omap/include/plat/smp.h b/arch/arm/plat-omap/include/plat/smp.h index 8983d54c4fd2..6a3ff65c0303 100644 --- a/arch/arm/plat-omap/include/plat/smp.h +++ b/arch/arm/plat-omap/include/plat/smp.h @@ -30,6 +30,7 @@ extern void omap_secondary_startup(void); extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); extern void omap_auxcoreboot_addr(u32 cpu_addr); +extern u32 omap_read_auxcoreboot0(void); /* * We use Soft IRQ1 as the IPI