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| author | Arnd Bergmann <arnd@arndb.de> | 2014-11-28 22:25:11 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2014-11-28 22:25:11 +0100 |
| commit | 756f80cee766574ae282baa97fdcf9cc6d0cc70c (patch) | |
| tree | 3d920910511b79b829f1e9e3540fda7d2c48f366 /arch/arm/mach-mvebu/pmsu_ll.S | |
| parent | d5bd4e8df43ca930ff3892963f6b3bf7984038e3 (diff) | |
| parent | 626d686487bfd8136c4543bee7b6b2e52c33b3f8 (diff) | |
Merge tag 'mvebu-soc-3.19' of git://git.infradead.org/linux-mvebu into next/soc
Pull "mvebu SoC changes for v3.19" from Jason Cooper:
- Armada 38x
- Implement CPU hotplug support
- Armada 375
- Remove Z1 stepping support (limited dist. of SoC)
* tag 'mvebu-soc-3.19' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: Implement the CPU hotplug support for the Armada 38x SoCs
ARM: mvebu: Fix the secondary startup for Cortex A9 SoC
ARM: mvebu: Move SCU power up in a function
ARM: mvebu: Clean-up the Armada XP support
ARM: mvebu: update comments in coherency.c
ARM: mvebu: remove Armada 375 Z1 workaround for I/O coherency
ARM: mvebu: remove unused register offset definition
ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP
ARM: mvebu: make the coherency_ll.S functions work with no coherency fabric
ARM: mvebu: Remove thermal quirk for A375 Z1 revision
ARM: mvebu: add missing of_node_put() call in coherency.c
ARM: orion: Fix for certain sequence of request_irq can cause irq storm
ARM: mvebu: armada xp: Generalize use of i2c quirk
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-mvebu/pmsu_ll.S')
| -rw-r--r-- | arch/arm/mach-mvebu/pmsu_ll.S | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/arm/mach-mvebu/pmsu_ll.S b/arch/arm/mach-mvebu/pmsu_ll.S index a945756cfb45..83d014698314 100644 --- a/arch/arm/mach-mvebu/pmsu_ll.S +++ b/arch/arm/mach-mvebu/pmsu_ll.S @@ -12,6 +12,18 @@ #include <linux/linkage.h> #include <asm/assembler.h> + +ENTRY(armada_38x_scu_power_up) + mrc p15, 4, r1, c15, c0 @ get SCU base address + orr r1, r1, #0x8 @ SCU CPU Power Status Register + mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID + and r0, r0, #15 + add r1, r1, r0 + mov r0, #0x0 + strb r0, [r1] @ switch SCU power state to Normal mode + ret lr +ENDPROC(armada_38x_scu_power_up) + /* * This is the entry point through which CPUs exiting cpuidle deep * idle state are going. @@ -27,13 +39,7 @@ ENTRY(armada_38x_cpu_resume) /* do we need it for Armada 38x*/ ARM_BE8(setend be ) @ go BE8 if entered LE bl v7_invalidate_l1 - mrc p15, 4, r1, c15, c0 @ get SCU base address - orr r1, r1, #0x8 @ SCU CPU Power Status Register - mrc 15, 0, r0, cr0, cr0, 5 @ get the CPU ID - and r0, r0, #15 - add r1, r1, r0 - mov r0, #0x0 - strb r0, [r1] @ switch SCU power state to Normal mode + bl armada_38x_scu_power_up b cpu_resume ENDPROC(armada_38x_cpu_resume) |