forked from Minki/linux
fa91515cbf
Lots of cleanup and refactoring and some SMP additions for Renesas
platforms. Due to some inter-dependencies with other arm-soc
branches, this Renesas stuff was separated out for sending after the
other branches were merged.
Highlights:
- remove unused board support and cleanup of unused headers
- refactoring of init and device registration
- simplify IRQ initialization
Conflicts: Too many. Most of these are because Simon chose to send
some board updates through the V4L tree that ends up colliding with
the main platform changes. We'll work with him on sorting out his
workflow:
- arch/arm/boot/dts/r8a7740.dtsi:
- Add/add conflict in a devicetree file (keep both)
- arch/arm/mach-shmobile/Makefile:
- Splitting out of clock files collides with intc move to DT.
Keep HEAD version but remove intc-* files for R8A7740 and R8A7779.
- arch/arm/mach-shmobile/board-bockw.c:
- Keep HEAD but remove i2c, hspi and mmc device init calls
- arch/arm/mach-shmobile/board-marzen.c
- Remove mach/hardware.h include and r8a7779_add_usb_phy_device() call,
everything else stays.
- arch/arm/mach-shmobile/include/mach/r8a7778.h:
- From HEAD, Keep camera-rcar.h include and r8a7778_add_vin_device()
- From branch, keep everything
- arch/arm/mach-shmobile/include/mach/r8a7779.h:
- From HEAD, Keep only camera-rcar.h include and r8a7779_add_vin_device()
- arch/arm/mach-shmobile/setup-r8a7778.c
- Keep HEAD, but drop the MMC section (struct resource + add_mmc_device())
- take the new function name from our side (r8a7778_add_dt_devices())
- arch/arm/mach-shmobile/setup-r8a7779.c
- Keep HEAD, but drop r8a7779_add_usb_phy_device()
I've also pushed a test-merge2 branch where you can see how I resolved
them.
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Merge tag 'renesas-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM Renesas SoC cleanup, refactoring and more SMP support from Kevin Hilman:
"Lots of cleanup and refactoring and some SMP additions for Renesas
platforms. Due to some inter-dependencies with other arm-soc
branches, this Renesas stuff was separated out for sending after the
other branches were merged.
Highlights:
- remove unused board support and cleanup of unused headers
- refactoring of init and device registration
- simplify IRQ initialization"
* tag 'renesas-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (68 commits)
ARM: shmobile: Per-CPU SMP boot / sleep code for SCU SoCs
ARM: shmobile: Introduce per-CPU SMP boot / sleep code
ARM: shmobile: Use shared SCU CPU Hotplug code on r8a7779
ARM: shmobile: Use shared SCU CPU Hotplug code on sh73a0
ARM: shmobile: Add shared SCU CPU Hotplug code
ARM: shmobile: Use shared SCU SMP boot code on emev2
ARM: shmobile: Use shared SCU SMP boot code on r8a7779
ARM: shmobile: Use shared SCU SMP boot code on sh73a0
ARM: shmobile: Introduce shared SCU SMP boot code
ARM: shmobile: sh73a0: Remove global GPIO_NR definition
ARM: shmobile: kzm9d: remove nfsroot settings from bootargs
ARM: shmobile: armadillo800eva: remove nfsroot settings from bootargs
ARM: shmobile: r8a7779: move r8a7779_init_irq_xxx() to setup
ARM: shmobile: r8a7740: move r8a7740_init_irq_of() to setup
ARM: shmobile: bockw: add missing __initdata
ARM: shmobile: r8a7790: add missing __initdata
ARM: shmobile: r8a7779: add missing __initdata
ARM: shmobile: Remove unused shmobile_init_time()
ARM: shmobile: Use clocksource_of_init() on r8a7790
ARM: shmobile: Use default ->init_time() on KZM9G DT ref
...
92 lines
2.0 KiB
ArmAsm
92 lines
2.0 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/linkage.h>
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#include <linux/init.h>
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#include <asm/memory.h>
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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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/*
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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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/*
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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, #CONFIG_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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mov pc, 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 CONFIG_NR_CPUS * 4
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.globl shmobile_smp_fn
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shmobile_smp_fn:
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2: .space CONFIG_NR_CPUS * 4
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.globl shmobile_smp_arg
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shmobile_smp_arg:
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3: .space CONFIG_NR_CPUS * 4
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