leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: sunxi: Share sun6i PSCI backend with sun8i

Browse Source 
sun8i can share the PSCI backend with sun6i. Only difference
is sun8i does not have CPU power clamp controls.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Chen-Yu Tsai 2015-05-28 21:25:33 +08:00 committed by Hans de Goede
parent cc08ea4cff
commit 9816743031
2 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/cpu/armv7/sunxi/Makefile
View File

@ -37,6 +37,7 @@ ifndef CONFIG_SPL_BUILD
ifdef CONFIG_ARMV7_PSCI
obj-$(CONFIG_MACH_SUN6I) += psci_sun6i.o
obj-$(CONFIG_MACH_SUN7I) += psci_sun7i.o
obj-$(CONFIG_MACH_SUN8I) += psci_sun6i.o
endif
endif

4
arch/arm/cpu/armv7/sunxi/psci_sun6i.S
View File

@ -124,11 +124,13 @@ psci_fiq_enter:
str r10, [r8, #0x100]
timer_wait r10, ONE_MS
#ifdef CONFIG_MACH_SUN6I
@ Activate power clamp
lsl r12, r9, #2 @ x4
add r12, r12, r8
mov r10, #0xff
str r10, [r12, #0x140]
#endif
movw r8, #(SUN6I_CPUCFG_BASE & 0xffff)
movt r8, #(SUN6I_CPUCFG_BASE >> 16)
@ -186,6 +188,7 @@ psci_cpu_on:
movw r0, #(SUNXI_PRCM_BASE & 0xffff)
movt r0, #(SUNXI_PRCM_BASE >> 16)
#ifdef CONFIG_MACH_SUN6I
@ Release power clamp
lsl r5, r1, #2 @ 1 register per CPU
add r5, r5, r0 @ PRCM
@ -194,6 +197,7 @@ psci_cpu_on:
1: lsrs r6, r6, #1
str r6, [r5, #0x140] @ CPUx_PWR_CLAMP
bne 1b
#endif
timer_wait r6, TEN_MS