diff options
| -rw-r--r-- | arch/mips/bcm63xx/irq.c | 131 | ||||
| -rw-r--r-- | arch/mips/bcm63xx/setup.c | 30 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 31 |
3 files changed, 149 insertions, 43 deletions
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c index 11f8942..9f53884 100644 --- a/arch/mips/bcm63xx/irq.c +++ b/arch/mips/bcm63xx/irq.c @@ -34,6 +34,9 @@ static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused; #define is_ext_irq_cascaded 0 #define ext_irq_start 0 #define ext_irq_end 0 +#define ext_irq_count 4 +#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6338 +#define ext_irq_cfg_reg2 0 #endif #ifdef CONFIG_BCM63XX_CPU_6345 #define irq_stat_reg PERF_IRQSTAT_6345_REG @@ -42,6 +45,9 @@ static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused; #define is_ext_irq_cascaded 0 #define ext_irq_start 0 #define ext_irq_end 0 +#define ext_irq_count 0 +#define ext_irq_cfg_reg1 0 +#define ext_irq_cfg_reg2 0 #endif #ifdef CONFIG_BCM63XX_CPU_6348 #define irq_stat_reg PERF_IRQSTAT_6348_REG @@ -50,6 +56,9 @@ static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused; #define is_ext_irq_cascaded 0 #define ext_irq_start 0 #define ext_irq_end 0 +#define ext_irq_count 4 +#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6348 +#define ext_irq_cfg_reg2 0 #endif #ifdef CONFIG_BCM63XX_CPU_6358 #define irq_stat_reg PERF_IRQSTAT_6358_REG @@ -58,6 +67,9 @@ static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused; #define is_ext_irq_cascaded 1 #define ext_irq_start (BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE) #define ext_irq_end (BCM_6358_EXT_IRQ3 - IRQ_INTERNAL_BASE) +#define ext_irq_count 4 +#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6358 +#define ext_irq_cfg_reg2 0 #endif #if irq_bits == 32 @@ -81,7 +93,9 @@ static inline void bcm63xx_init_irq(void) static u32 irq_stat_addr, irq_mask_addr; static void (*dispatch_internal)(void); static int is_ext_irq_cascaded; +static unsigned int ext_irq_count; static unsigned int ext_irq_start, ext_irq_end; +static unsigned int ext_irq_cfg_reg1, ext_irq_cfg_reg2; static void (*internal_irq_mask)(unsigned int irq); static void (*internal_irq_unmask)(unsigned int irq); @@ -107,14 +121,18 @@ static void bcm63xx_init_irq(void) irq_stat_addr += PERF_IRQSTAT_6348_REG; irq_mask_addr += PERF_IRQMASK_6348_REG; irq_bits = 32; + ext_irq_count = 4; + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6348; break; case BCM6358_CPU_ID: irq_stat_addr += PERF_IRQSTAT_6358_REG; irq_mask_addr += PERF_IRQMASK_6358_REG; irq_bits = 32; + ext_irq_count = 4; is_ext_irq_cascaded = 1; ext_irq_start = BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE; ext_irq_end = BCM_6358_EXT_IRQ3 - IRQ_INTERNAL_BASE; + ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6358; break; default: BUG(); @@ -132,6 +150,13 @@ static void bcm63xx_init_irq(void) } #endif /* ! BCMCPU_RUNTIME_DETECT */ +static inline u32 get_ext_irq_perf_reg(int irq) +{ + if (irq < 4) + return ext_irq_cfg_reg1; + return ext_irq_cfg_reg2; +} + static inline void handle_internal(int intbit) { if (is_ext_irq_cascaded && @@ -273,11 +298,17 @@ static void bcm63xx_internal_irq_unmask(struct irq_data *d) static void bcm63xx_external_irq_mask(struct irq_data *d) { unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; - u32 reg; + u32 reg, regaddr; - reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); - reg &= ~EXTIRQ_CFG_MASK(irq); - bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); + regaddr = get_ext_irq_perf_reg(irq); + reg = bcm_perf_readl(regaddr); + + if (BCMCPU_IS_6348()) + reg &= ~EXTIRQ_CFG_MASK_6348(irq % 4); + else + reg &= ~EXTIRQ_CFG_MASK(irq % 4); + + bcm_perf_writel(reg, regaddr); if (is_ext_irq_cascaded) internal_irq_mask(irq + ext_irq_start); } @@ -285,11 +316,18 @@ static void bcm63xx_external_irq_mask(struct irq_data *d) static void bcm63xx_external_irq_unmask(struct irq_data *d) { unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; - u32 reg; + u32 reg, regaddr; + + regaddr = get_ext_irq_perf_reg(irq); + reg = bcm_perf_readl(regaddr); + + if (BCMCPU_IS_6348()) + reg |= EXTIRQ_CFG_MASK_6348(irq % 4); + else + reg |= EXTIRQ_CFG_MASK(irq % 4); + + bcm_perf_writel(reg, regaddr); - reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); - reg |= EXTIRQ_CFG_MASK(irq); - bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); if (is_ext_irq_cascaded) internal_irq_unmask(irq + ext_irq_start); } @@ -297,58 +335,93 @@ static void bcm63xx_external_irq_unmask(struct irq_data *d) static void bcm63xx_external_irq_clear(struct irq_data *d) { unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; - u32 reg; + u32 reg, regaddr; + + regaddr = get_ext_irq_perf_reg(irq); + reg = bcm_perf_readl(regaddr); - reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); - reg |= EXTIRQ_CFG_CLEAR(irq); - bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); + if (BCMCPU_IS_6348()) + reg |= EXTIRQ_CFG_CLEAR_6348(irq % 4); + else + reg |= EXTIRQ_CFG_CLEAR(irq % 4); + + bcm_perf_writel(reg, regaddr); } static int bcm63xx_external_irq_set_type(struct irq_data *d, unsigned int flow_type) { unsigned int irq = d->irq - IRQ_EXTERNAL_BASE; - u32 reg; + u32 reg, regaddr; + int levelsense, sense, bothedge; flow_type &= IRQ_TYPE_SENSE_MASK; if (flow_type == IRQ_TYPE_NONE) flow_type = IRQ_TYPE_LEVEL_LOW; - reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); + levelsense = sense = bothedge = 0; switch (flow_type) { case IRQ_TYPE_EDGE_BOTH: - reg &= ~EXTIRQ_CFG_LEVELSENSE(irq); - reg |= EXTIRQ_CFG_BOTHEDGE(irq); + bothedge = 1; break; case IRQ_TYPE_EDGE_RISING: - reg &= ~EXTIRQ_CFG_LEVELSENSE(irq); - reg |= EXTIRQ_CFG_SENSE(irq); - reg &= ~EXTIRQ_CFG_BOTHEDGE(irq); + sense = 1; break; case IRQ_TYPE_EDGE_FALLING: - reg &= ~EXTIRQ_CFG_LEVELSENSE(irq); - reg &= ~EXTIRQ_CFG_SENSE(irq); - reg &= ~EXTIRQ_CFG_BOTHEDGE(irq); break; case IRQ_TYPE_LEVEL_HIGH: - reg |= EXTIRQ_CFG_LEVELSENSE(irq); - reg |= EXTIRQ_CFG_SENSE(irq); + levelsense = 1; + sense = 1; break; case IRQ_TYPE_LEVEL_LOW: - reg |= EXTIRQ_CFG_LEVELSENSE(irq); - reg &= ~EXTIRQ_CFG_SENSE(irq); + levelsense = 1; break; default: printk(KERN_ERR "bogus flow type combination given !\n"); return -EINVAL; } - bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); + + regaddr = get_ext_irq_perf_reg(irq); + reg = bcm_perf_readl(regaddr); + irq %= 4; + + if (BCMCPU_IS_6348()) { + if (levelsense) + reg |= EXTIRQ_CFG_LEVELSENSE_6348(irq); + else + reg &= ~EXTIRQ_CFG_LEVELSENSE_6348(irq); + if (sense) + reg |= EXTIRQ_CFG_SENSE_6348(irq); + else + reg &= ~EXTIRQ_CFG_SENSE_6348(irq); + if (bothedge) + reg |= EXTIRQ_CFG_BOTHEDGE_6348(irq); + else + reg &= ~EXTIRQ_CFG_BOTHEDGE_6348(irq); + } + + if (BCMCPU_IS_6338() || BCMCPU_IS_6358()) { + if (levelsense) + reg |= EXTIRQ_CFG_LEVELSENSE(irq); + else + reg &= ~EXTIRQ_CFG_LEVELSENSE(irq); + if (sense) + reg |= EXTIRQ_CFG_SENSE(irq); + else + reg &= ~EXTIRQ_CFG_SENSE(irq); + if (bothedge) + reg |= EXTIRQ_CFG_BOTHEDGE(irq); + else + reg &= ~EXTIRQ_CFG_BOTHEDGE(irq); + } + + bcm_perf_writel(reg, regaddr); irqd_set_trigger_type(d, flow_type); if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) @@ -397,12 +470,12 @@ void __init arch_init_irq(void) irq_set_chip_and_handler(i, &bcm63xx_internal_irq_chip, handle_level_irq); - for (i = IRQ_EXTERNAL_BASE; i < IRQ_EXTERNAL_BASE + 4; ++i) + for (i = IRQ_EXTERNAL_BASE; i < IRQ_EXTERNAL_BASE + ext_irq_count; ++i) irq_set_chip_and_handler(i, &bcm63xx_external_irq_chip, handle_edge_irq); if (!is_ext_irq_cascaded) { - for (i = 3; i < 7; ++i) + for (i = 3; i < 3 + ext_irq_count; ++i) setup_irq(MIPS_CPU_IRQ_BASE + i, &cpu_ext_cascade_action); } diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c index 04a3499..d209f85 100644 --- a/arch/mips/bcm63xx/setup.c +++ b/arch/mips/bcm63xx/setup.c @@ -63,13 +63,33 @@ static void bcm6348_a1_reboot(void) void bcm63xx_machine_reboot(void) { - u32 reg; + u32 reg, perf_regs[2] = { 0, 0 }; + unsigned int i; /* mask and clear all external irq */ - reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); - reg &= ~EXTIRQ_CFG_MASK_ALL; - reg |= EXTIRQ_CFG_CLEAR_ALL; - bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); + switch (bcm63xx_get_cpu_id()) { + case BCM6338_CPU_ID: + perf_regs[0] = PERF_EXTIRQ_CFG_REG_6338; + break; + case BCM6348_CPU_ID: + perf_regs[0] = PERF_EXTIRQ_CFG_REG_6348; + break; + case BCM6358_CPU_ID: + perf_regs[0] = PERF_EXTIRQ_CFG_REG_6358; + break; + } + + for (i = 0; i < 2; i++) { + reg = bcm_perf_readl(perf_regs[i]); + if (BCMCPU_IS_6348()) { + reg &= ~EXTIRQ_CFG_MASK_ALL_6348; + reg |= EXTIRQ_CFG_CLEAR_ALL_6348; + } else { + reg &= ~EXTIRQ_CFG_MASK_ALL; + reg |= EXTIRQ_CFG_CLEAR_ALL; + } + bcm_perf_writel(reg, perf_regs[i]); + } if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1)) bcm6348_a1_reboot(); diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h index 25676cd..2b3a2d6 100644 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h @@ -100,16 +100,29 @@ #define PERF_IRQSTAT_6358_REG 0x10 /* External Interrupt Configuration register */ -#define PERF_EXTIRQ_CFG_REG 0x14 +#define PERF_EXTIRQ_CFG_REG_6338 0x14 +#define PERF_EXTIRQ_CFG_REG_6348 0x14 +#define PERF_EXTIRQ_CFG_REG_6358 0x14 + +/* for 6348 only */ +#define EXTIRQ_CFG_SENSE_6348(x) (1 << (x)) +#define EXTIRQ_CFG_STAT_6348(x) (1 << (x + 5)) +#define EXTIRQ_CFG_CLEAR_6348(x) (1 << (x + 10)) +#define EXTIRQ_CFG_MASK_6348(x) (1 << (x + 15)) +#define EXTIRQ_CFG_BOTHEDGE_6348(x) (1 << (x + 20)) +#define EXTIRQ_CFG_LEVELSENSE_6348(x) (1 << (x + 25)) +#define EXTIRQ_CFG_CLEAR_ALL_6348 (0xf << 10) +#define EXTIRQ_CFG_MASK_ALL_6348 (0xf << 15) + +/* for all others */ #define EXTIRQ_CFG_SENSE(x) (1 << (x)) -#define EXTIRQ_CFG_STAT(x) (1 << (x + 5)) -#define EXTIRQ_CFG_CLEAR(x) (1 << (x + 10)) -#define EXTIRQ_CFG_MASK(x) (1 << (x + 15)) -#define EXTIRQ_CFG_BOTHEDGE(x) (1 << (x + 20)) -#define EXTIRQ_CFG_LEVELSENSE(x) (1 << (x + 25)) - -#define EXTIRQ_CFG_CLEAR_ALL (0xf << 10) -#define EXTIRQ_CFG_MASK_ALL (0xf << 15) +#define EXTIRQ_CFG_STAT(x) (1 << (x + 4)) +#define EXTIRQ_CFG_CLEAR(x) (1 << (x + 8)) +#define EXTIRQ_CFG_MASK(x) (1 << (x + 12)) +#define EXTIRQ_CFG_BOTHEDGE(x) (1 << (x + 16)) +#define EXTIRQ_CFG_LEVELSENSE(x) (1 << (x + 20)) +#define EXTIRQ_CFG_CLEAR_ALL (0xf << 8) +#define EXTIRQ_CFG_MASK_ALL (0xf << 12) /* Soft Reset register */ #define PERF_SOFTRESET_REG 0x28 |