From: Jaecheol Lee <[email protected]> This patch adds save/restore for Power Control Register and Diagnostic Register.
Signed-off-by: Jaecheol Lee <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> --- arch/arm/mach-exynos4/sleep.S | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-exynos4/sleep.S b/arch/arm/mach-exynos4/sleep.S index d55d38c..4fe13fc 100644 --- a/arch/arm/mach-exynos4/sleep.S +++ b/arch/arm/mach-exynos4/sleep.S @@ -42,6 +42,15 @@ ENTRY(s3c_cpu_save) stmfd sp!, { r3 - r12, lr } + + adr r0, sleep_save_misc + + mrc p15, 0, r2, c15, c0, 0 @ read power control register + str r2, [r0], #4 + + mrc p15, 0, r2, c15, c0, 1 @ read diagnostic register + str r2, [r0], #4 + ldr r3, =resume_with_mmu bl cpu_suspend @@ -56,6 +65,14 @@ ENTRY(s3c_cpu_save) b early_wakeup resume_with_mmu: + adr r0, sleep_save_misc + + ldr r1, [r0], #4 + mcr p15, 0, r1, c15, c0, 0 @ write power control register + + ldr r1, [r0], #4 + mcr p15, 0, r1, c15, c0, 1 @ write diagnostic register + mov r0, #1 early_wakeup: @@ -71,6 +88,11 @@ early_wakeup: .word 0x2bedf00d + /* To save more cpu register */ +sleep_save_misc: + .long 0 + .long 0 + /* * s3c_cpu_resume * -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
