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| author | Magnus Damm <damm@opensource.se> | 2013-07-31 07:07:31 (GMT) |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2013-08-06 09:07:25 (GMT) |
| commit | 0ca2894b5a9007091ad1a4d82b9f3132d4dd9410 (patch) | |
| tree | c94d6f05f78ee35b8f9e6e21ddb9509d414d5697 /arch/arm/mach-shmobile | |
| parent | 12eb8474386228c91e35be031d7c3eaa1318b5cf (diff) | |
| download | linux-0ca2894b5a9007091ad1a4d82b9f3132d4dd9410.tar.xz | |
ARM: shmobile: Use shared SCU SMP boot code on r8a7779
Use shared SCU code on r8a7779 for SMP boot.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/mach-shmobile')
| -rw-r--r-- | arch/arm/mach-shmobile/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/smp-r8a7779.c | 23 |
2 files changed, 13 insertions, 12 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index a32dc15..42bbf45 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -18,7 +18,7 @@ obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o clock-emev2.o # SMP objects smp-y := platsmp.o headsmp.o smp-$(CONFIG_ARCH_SH73A0) += smp-sh73a0.o headsmp-scu.o platsmp-scu.o -smp-$(CONFIG_ARCH_R8A7779) += smp-r8a7779.o headsmp-scu.o +smp-$(CONFIG_ARCH_R8A7779) += smp-r8a7779.o headsmp-scu.o platsmp-scu.o smp-$(CONFIG_ARCH_EMEV2) += smp-emev2.o headsmp-scu.o # IRQ objects diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c index bb3adae..1963d0d 100644 --- a/arch/arm/mach-shmobile/smp-r8a7779.c +++ b/arch/arm/mach-shmobile/smp-r8a7779.c @@ -84,33 +84,34 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu) static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle) { struct r8a7779_pm_ch *ch = NULL; - int ret = -EIO; + unsigned int lcpu = cpu_logical_map(cpu); + int ret; - cpu = cpu_logical_map(cpu); + ret = shmobile_smp_scu_boot_secondary(cpu, idle); + if (ret) + return ret; - if (cpu < ARRAY_SIZE(r8a7779_ch_cpu)) - ch = r8a7779_ch_cpu[cpu]; + if (lcpu < ARRAY_SIZE(r8a7779_ch_cpu)) + ch = r8a7779_ch_cpu[lcpu]; if (ch) ret = r8a7779_sysc_power_up(ch); + else + ret = -EIO; return ret; } static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus) { - - /* setup r8a7779 specific SCU base */ - shmobile_scu_base = IOMEM(R8A7779_SCU_BASE); - scu_enable(shmobile_scu_base); - /* Map the reset vector (in headsmp-scu.S, headsmp.S) */ __raw_writel(__pa(shmobile_boot_vector), AVECR); shmobile_boot_fn = virt_to_phys(shmobile_boot_scu); shmobile_boot_arg = (unsigned long)shmobile_scu_base; - /* enable cache coherency on booting CPU */ - scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL); + /* setup r8a7779 specific SCU bits */ + shmobile_scu_base = IOMEM(R8A7779_SCU_BASE); + shmobile_smp_scu_prepare_cpus(max_cpus); r8a7779_pm_init(); |