b3345d7c57
Pull ARM SoC platform changes from Olof Johansson:
"This is the bulk of new SoC enablement and other platform changes for
3.17:
- Samsung S5PV210 has been converted to DT and multiplatform
- Clock drivers and bindings for some of the lower-end i.MX 1/2
platforms
- Kirkwood, one of the popular Marvell platforms, is folded into the
mvebu platform code, removing mach-kirkwood
- Hwmod data for TI AM43xx and DRA7 platforms
- More additions of Renesas shmobile platform support
- Removal of plat-samsung contents that can be removed with S5PV210
being multiplatform/DT-enabled and the other two old platforms
being removed
New platforms (most with only basic support right now):
- Hisilicon X5HD2 settop box chipset is introduced
- Mediatek MT6589 (mobile chipset) is introduced
- Broadcom BCM7xxx settop box chipset is introduced
+ as usual a lot other pieces all over the platform code"
* tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits)
ARM: hisi: remove smp from machine descriptor
power: reset: move hisilicon reboot code
ARM: dts: Add hix5hd2-dkb dts file.
ARM: debug: Rename Hi3716 to HIX5HD2
ARM: hisi: enable hix5hd2 SoC
ARM: hisi: add ARCH_HISI
MAINTAINERS: add entry for Broadcom ARM STB architecture
ARM: brcmstb: select GISB arbiter and interrupt drivers
ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
ARM: configs: enable SMP in bcm_defconfig
ARM: add SMP support for Broadcom mobile SoCs
Documentation: arm: misc updates to Marvell EBU SoC status
Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC
ARM: mvebu: fix build without platforms selected
ARM: mvebu: add cpuidle support for Armada 38x
ARM: mvebu: add cpuidle support for Armada 370
cpuidle: mvebu: add Armada 38x support
cpuidle: mvebu: add Armada 370 support
cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7
ARM: mvebu: export the SCU address
...
99 lines
2.1 KiB
ArmAsm
99 lines
2.1 KiB
ArmAsm
/*
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* SMP support for R-Mobile / SH-Mobile
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*
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* Copyright (C) 2010 Magnus Damm
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* Copyright (C) 2010 Takashi Yoshii
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*
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* Based on vexpress, Copyright (c) 2003 ARM Limited, All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/linkage.h>
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#include <linux/threads.h>
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#include <asm/assembler.h>
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#include <asm/memory.h>
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#ifdef CONFIG_SMP
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ENTRY(shmobile_invalidate_start)
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bl v7_invalidate_l1
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b secondary_startup
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ENDPROC(shmobile_invalidate_start)
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#endif
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/*
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* Reset vector for secondary CPUs.
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* This will be mapped at address 0 by SBAR register.
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* We need _long_ jump to the physical address.
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*/
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.arm
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.align 12
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ENTRY(shmobile_boot_vector)
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ldr r0, 2f
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ldr r1, 1f
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bx r1
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ENDPROC(shmobile_boot_vector)
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.align 2
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.globl shmobile_boot_fn
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shmobile_boot_fn:
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1: .space 4
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.globl shmobile_boot_arg
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shmobile_boot_arg:
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2: .space 4
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.globl shmobile_boot_size
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shmobile_boot_size:
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.long . - shmobile_boot_vector
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/*
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* Per-CPU SMP boot function/argument selection code based on MPIDR
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*/
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ENTRY(shmobile_smp_boot)
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@ r0 = MPIDR_HWID_BITMASK
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mrc p15, 0, r1, c0, c0, 5 @ r1 = MPIDR
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and r0, r1, r0 @ r0 = cpu_logical_map() value
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mov r1, #0 @ r1 = CPU index
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adr r5, 1f @ array of per-cpu mpidr values
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adr r6, 2f @ array of per-cpu functions
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adr r7, 3f @ array of per-cpu arguments
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shmobile_smp_boot_find_mpidr:
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ldr r8, [r5, r1, lsl #2]
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cmp r8, r0
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bne shmobile_smp_boot_next
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ldr r9, [r6, r1, lsl #2]
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cmp r9, #0
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bne shmobile_smp_boot_found
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shmobile_smp_boot_next:
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add r1, r1, #1
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cmp r1, #NR_CPUS
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blo shmobile_smp_boot_find_mpidr
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b shmobile_smp_sleep
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shmobile_smp_boot_found:
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ldr r0, [r7, r1, lsl #2]
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ret r9
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ENDPROC(shmobile_smp_boot)
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ENTRY(shmobile_smp_sleep)
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wfi
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b shmobile_smp_boot
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ENDPROC(shmobile_smp_sleep)
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.globl shmobile_smp_mpidr
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shmobile_smp_mpidr:
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1: .space NR_CPUS * 4
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.globl shmobile_smp_fn
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shmobile_smp_fn:
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2: .space NR_CPUS * 4
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.globl shmobile_smp_arg
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shmobile_smp_arg:
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3: .space NR_CPUS * 4
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