diff options
Diffstat (limited to 'arch/sh/kernel/cpu/sh4a/smp-shx3.c')
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/smp-shx3.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/smp-shx3.c b/arch/sh/kernel/cpu/sh4a/smp-shx3.c index 185ec3976a25..5863e0c4d02f 100644 --- a/arch/sh/kernel/cpu/sh4a/smp-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/smp-shx3.c @@ -14,6 +14,13 @@ #include <linux/interrupt.h> #include <linux/io.h> +#define STBCR_REG(phys_id) (0xfe400004 | (phys_id << 12)) +#define RESET_REG(phys_id) (0xfe400008 | (phys_id << 12)) + +#define STBCR_MSTP 0x00000001 +#define STBCR_RESET 0x00000002 +#define STBCR_LTSLP 0x80000000 + static irqreturn_t ipi_interrupt_handler(int irq, void *arg) { unsigned int message = (unsigned int)(long)arg; @@ -21,9 +28,9 @@ static irqreturn_t ipi_interrupt_handler(int irq, void *arg) unsigned int offs = 4 * cpu; unsigned int x; - x = ctrl_inl(0xfe410070 + offs); /* C0INITICI..CnINTICI */ + x = __raw_readl(0xfe410070 + offs); /* C0INITICI..CnINTICI */ x &= (1 << (message << 2)); - ctrl_outl(x, 0xfe410080 + offs); /* C0INTICICLR..CnINTICICLR */ + __raw_writel(x, 0xfe410080 + offs); /* C0INTICICLR..CnINTICICLR */ smp_message_recv(message); @@ -37,6 +44,9 @@ void __init plat_smp_setup(void) init_cpu_possible(cpumask_of(cpu)); + /* Enable light sleep for the boot CPU */ + __raw_writel(__raw_readl(STBCR_REG(cpu)) | STBCR_LTSLP, STBCR_REG(cpu)); + __cpu_number_map[0] = 0; __cpu_logical_map[0] = 0; @@ -66,32 +76,23 @@ void __init plat_prepare_cpus(unsigned int max_cpus) "IPI", (void *)(long)i); } -#define STBCR_REG(phys_id) (0xfe400004 | (phys_id << 12)) -#define RESET_REG(phys_id) (0xfe400008 | (phys_id << 12)) - -#define STBCR_MSTP 0x00000001 -#define STBCR_RESET 0x00000002 -#define STBCR_LTSLP 0x80000000 - -#define STBCR_AP_VAL (STBCR_RESET | STBCR_LTSLP) - void plat_start_cpu(unsigned int cpu, unsigned long entry_point) { - ctrl_outl(entry_point, RESET_REG(cpu)); + __raw_writel(entry_point, RESET_REG(cpu)); - if (!(ctrl_inl(STBCR_REG(cpu)) & STBCR_MSTP)) - ctrl_outl(STBCR_MSTP, STBCR_REG(cpu)); + if (!(__raw_readl(STBCR_REG(cpu)) & STBCR_MSTP)) + __raw_writel(STBCR_MSTP, STBCR_REG(cpu)); - while (!(ctrl_inl(STBCR_REG(cpu)) & STBCR_MSTP)) + while (!(__raw_readl(STBCR_REG(cpu)) & STBCR_MSTP)) cpu_relax(); /* Start up secondary processor by sending a reset */ - ctrl_outl(STBCR_AP_VAL, STBCR_REG(cpu)); + __raw_writel(STBCR_RESET | STBCR_LTSLP, STBCR_REG(cpu)); } int plat_smp_processor_id(void) { - return ctrl_inl(0xff000048); /* CPIDR */ + return __raw_readl(0xff000048); /* CPIDR */ } void plat_send_ipi(unsigned int cpu, unsigned int message) @@ -100,5 +101,5 @@ void plat_send_ipi(unsigned int cpu, unsigned int message) BUG_ON(cpu >= 4); - ctrl_outl(1 << (message << 2), addr); /* C0INTICI..CnINTICI */ + __raw_writel(1 << (message << 2), addr); /* C0INTICI..CnINTICI */ } |