diff options
Diffstat (limited to 'arch/arm/plat-mxc')
| -rw-r--r-- | arch/arm/plat-mxc/Kconfig | 39 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/avic.c | 91 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/cpu.c | 9 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/common.h | 15 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/entry-macro.S | 58 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/iomux-mx3.h | 1 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/mx25.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/mx3x.h | 18 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/irq-common.c | 21 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/irq-common.h | 3 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/pwm.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/tzic.c | 32 |
12 files changed, 154 insertions, 140 deletions
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig index 4c8fdbcc946..4bdc975581e 100644 --- a/arch/arm/plat-mxc/Kconfig +++ b/arch/arm/plat-mxc/Kconfig @@ -4,50 +4,31 @@ source "arch/arm/plat-mxc/devices/Kconfig" menu "Freescale MXC Implementations" -config ARCH_MX50_SUPPORTED - bool - -config ARCH_MX53_SUPPORTED - bool - choice prompt "Freescale CPU family:" default ARCH_MX3 -config ARCH_MX1 - bool "MX1-based" - help - This enables support for systems based on the Freescale i.MX1 family - -config ARCH_MX2 - bool "MX2-based" - help - This enables support for systems based on the Freescale i.MX2 family - -config ARCH_MX25 - bool "MX25-based" +config ARCH_IMX_V4_V5 + bool "i.MX1, i.MX21, i.MX25, i.MX27" + select AUTO_ZRELADDR + select ARM_PATCH_PHYS_VIRT help - This enables support for systems based on the Freescale i.MX25 family + This enables support for systems based on the Freescale i.MX ARMv4 + and ARMv5 SoCs config ARCH_MX3 bool "MX3-based" help This enables support for systems based on the Freescale i.MX3 family -config ARCH_MX503 - bool "i.MX50 + i.MX53" - select ARCH_MX50_SUPPORTED - select ARCH_MX53_SUPPORTED +config ARCH_MX5 + bool "i.MX50, i.MX51, i.MX53" + select AUTO_ZRELADDR + select ARM_PATCH_PHYS_VIRT help This enables support for machines using Freescale's i.MX50 and i.MX53 processors. -config ARCH_MX51 - bool "i.MX51" - select ARCH_MX51_SUPPORTED - help - This enables support for systems based on the Freescale i.MX51 family - endchoice source "arch/arm/mach-imx/Kconfig" diff --git a/arch/arm/plat-mxc/avic.c b/arch/arm/plat-mxc/avic.c index 55d2534ec72..8875fb415f6 100644 --- a/arch/arm/plat-mxc/avic.c +++ b/arch/arm/plat-mxc/avic.c @@ -50,6 +50,8 @@ void __iomem *avic_base; +static u32 avic_saved_mask_reg[2]; + #ifdef CONFIG_MXC_IRQ_PRIOR static int avic_irq_set_priority(unsigned char irq, unsigned char prio) { @@ -90,24 +92,8 @@ static int avic_set_irq_fiq(unsigned int irq, unsigned int type) } #endif /* CONFIG_FIQ */ -/* Disable interrupt number "irq" in the AVIC */ -static void mxc_mask_irq(struct irq_data *d) -{ - __raw_writel(d->irq, avic_base + AVIC_INTDISNUM); -} -/* Enable interrupt number "irq" in the AVIC */ -static void mxc_unmask_irq(struct irq_data *d) -{ - __raw_writel(d->irq, avic_base + AVIC_INTENNUM); -} - -static struct mxc_irq_chip mxc_avic_chip = { - .base = { - .irq_ack = mxc_mask_irq, - .irq_mask = mxc_mask_irq, - .irq_unmask = mxc_unmask_irq, - }, +static struct mxc_extra_irq avic_extra_irq = { #ifdef CONFIG_MXC_IRQ_PRIOR .set_priority = avic_irq_set_priority, #endif @@ -116,6 +102,68 @@ static struct mxc_irq_chip mxc_avic_chip = { #endif }; +#ifdef CONFIG_PM +static void avic_irq_suspend(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct irq_chip_type *ct = gc->chip_types; + int idx = gc->irq_base >> 5; + + avic_saved_mask_reg[idx] = __raw_readl(avic_base + ct->regs.mask); + __raw_writel(gc->wake_active, avic_base + ct->regs.mask); +} + +static void avic_irq_resume(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct irq_chip_type *ct = gc->chip_types; + int idx = gc->irq_base >> 5; + + __raw_writel(avic_saved_mask_reg[idx], avic_base + ct->regs.mask); +} + +#else +#define avic_irq_suspend NULL +#define avic_irq_resume NULL +#endif + +static __init void avic_init_gc(unsigned int irq_start) +{ + struct irq_chip_generic *gc; + struct irq_chip_type *ct; + int idx = irq_start >> 5; + + gc = irq_alloc_generic_chip("mxc-avic", 1, irq_start, avic_base, + handle_level_irq); + gc->private = &avic_extra_irq; + gc->wake_enabled = IRQ_MSK(32); + + ct = gc->chip_types; + ct->chip.irq_mask = irq_gc_mask_clr_bit; + ct->chip.irq_unmask = irq_gc_mask_set_bit; + ct->chip.irq_ack = irq_gc_mask_clr_bit; + ct->chip.irq_set_wake = irq_gc_set_wake; + ct->chip.irq_suspend = avic_irq_suspend; + ct->chip.irq_resume = avic_irq_resume; + ct->regs.mask = !idx ? AVIC_INTENABLEL : AVIC_INTENABLEH; + ct->regs.ack = ct->regs.mask; + + irq_setup_generic_chip(gc, IRQ_MSK(32), 0, IRQ_NOREQUEST, 0); +} + +asmlinkage void __exception_irq_entry avic_handle_irq(struct pt_regs *regs) +{ + u32 nivector; + + do { + nivector = __raw_readl(avic_base + AVIC_NIVECSR) >> 16; + if (nivector == 0xffff) + break; + + handle_IRQ(nivector, regs); + } while (1); +} + /* * This function initializes the AVIC hardware and disables all the * interrupts. It registers the interrupt enable and disable functions @@ -140,11 +188,9 @@ void __init mxc_init_irq(void __iomem *irqbase) /* all IRQ no FIQ */ __raw_writel(0, avic_base + AVIC_INTTYPEH); __raw_writel(0, avic_base + AVIC_INTTYPEL); - for (i = 0; i < AVIC_NUM_IRQS; i++) { - irq_set_chip_and_handler(i, &mxc_avic_chip.base, - handle_level_irq); - set_irq_flags(i, IRQF_VALID); - } + + for (i = 0; i < AVIC_NUM_IRQS; i += 32) + avic_init_gc(i); /* Set default priority value (0) for all IRQ's */ for (i = 0; i < 8; i++) @@ -157,4 +203,3 @@ void __init mxc_init_irq(void __iomem *irqbase) printk(KERN_INFO "MXC IRQ initialized\n"); } - diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c index 386e0d52cf5..f5b7e0fa237 100644 --- a/arch/arm/plat-mxc/cpu.c +++ b/arch/arm/plat-mxc/cpu.c @@ -1,5 +1,6 @@ #include <linux/module.h> +#include <mach/hardware.h> unsigned int __mxc_cpu_type; EXPORT_SYMBOL(__mxc_cpu_type); @@ -9,3 +10,11 @@ void mxc_set_cpu_type(unsigned int type) __mxc_cpu_type = type; } +void imx_print_silicon_rev(const char *cpu, int srev) +{ + if (srev == IMX_CHIP_REVISION_UNKNOWN) + pr_info("CPU identified as %s, unknown revision\n", cpu); + else + pr_info("CPU identified as %s, silicon rev %d.%d\n", + cpu, (srev >> 4) & 0xf, srev & 0xf); +} diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index d7149d1bd32..ace4bb550ed 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -82,4 +82,19 @@ enum mxc_cpu_pwr_mode { extern void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode); extern void (*imx_idle)(void); +extern void imx_print_silicon_rev(const char *cpu, int srev); + +void avic_handle_irq(struct pt_regs *); +void tzic_handle_irq(struct pt_regs *); + +#define imx1_handle_irq avic_handle_irq +#define imx21_handle_irq avic_handle_irq +#define imx25_handle_irq avic_handle_irq +#define imx27_handle_irq avic_handle_irq +#define imx31_handle_irq avic_handle_irq +#define imx35_handle_irq avic_handle_irq +#define imx50_handle_irq tzic_handle_irq +#define imx51_handle_irq tzic_handle_irq +#define imx53_handle_irq tzic_handle_irq + #endif diff --git a/arch/arm/plat-mxc/include/mach/entry-macro.S b/arch/arm/plat-mxc/include/mach/entry-macro.S index 066d464d322..842fbcb0d6c 100644 --- a/arch/arm/plat-mxc/include/mach/entry-macro.S +++ b/arch/arm/plat-mxc/include/mach/entry-macro.S @@ -9,72 +9,16 @@ * published by the Free Software Foundation. */ -#include <mach/hardware.h> +/* Unused, we use CONFIG_MULTI_IRQ_HANDLER */ -#define AVIC_NIMASK 0x04 - - @ this macro disables fast irq (not implemented) .macro disable_fiq .endm .macro get_irqnr_preamble, base, tmp -#ifndef CONFIG_MXC_TZIC - ldr \base, =avic_base - ldr \base, [\base] -#ifdef CONFIG_MXC_IRQ_PRIOR - ldr r4, [\base, #AVIC_NIMASK] -#endif -#elif defined CONFIG_MXC_TZIC - ldr \base, =tzic_base - ldr \base, [\base] -#endif /* CONFIG_MXC_TZIC */ .endm .macro arch_ret_to_user, tmp1, tmp2 .endm - @ this macro checks which interrupt occurred - @ and returns its number in irqnr - @ and returns if an interrupt occurred in irqstat .macro get_irqnr_and_base, irqnr, irqstat, base, tmp -#ifndef CONFIG_MXC_TZIC - @ Load offset & priority of the highest priority - @ interrupt pending from AVIC_NIVECSR - ldr \irqstat, [\base, #0x40] - @ Shift to get the decoded IRQ number, using ASR so - @ 'no interrupt pending' becomes 0xffffffff - mov \irqnr, \irqstat, asr #16 - @ set zero flag if IRQ + 1 == 0 - adds \tmp, \irqnr, #1 -#ifdef CONFIG_MXC_IRQ_PRIOR - bicne \tmp, \irqstat, #0xFFFFFFE0 - strne \tmp, [\base, #AVIC_NIMASK] - streq r4, [\base, #AVIC_NIMASK] -#endif -#elif defined CONFIG_MXC_TZIC - @ Load offset & priority of the highest priority - @ interrupt pending. - @ 0x080 is INTSEC0 register - @ 0xD80 is HIPND0 register - mov \irqnr, #0 -1000: add \irqstat, \base, \irqnr, lsr #3 - ldr \tmp, [\irqstat, #0xd80] - ldr \irqstat, [\irqstat, #0x080] - ands \tmp, \tmp, \irqstat - bne 1001f - add \irqnr, \irqnr, #32 - cmp \irqnr, #128 - blo 1000b - b 2001f -1001: mov \irqstat, #1 -1002: tst \tmp, \irqstat - bne 2002f - movs \tmp, \tmp, lsr #1 - addne \irqnr, \irqnr, #1 - bne 1002b -2001: - mov \irqnr, #0 -2002: - movs \irqnr, \irqnr -#endif .endm diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx3.h b/arch/arm/plat-mxc/include/mach/iomux-mx3.h index c92f0b1f216..63f22a009a6 100644 --- a/arch/arm/plat-mxc/include/mach/iomux-mx3.h +++ b/arch/arm/plat-mxc/include/mach/iomux-mx3.h @@ -735,6 +735,7 @@ enum iomux_pins { #define MX31_PIN_KEY_COL5_KEY_COL5 IOMUX_MODE(MX31_PIN_KEY_COL5, IOMUX_CONFIG_FUNC) #define MX31_PIN_KEY_COL6_KEY_COL6 IOMUX_MODE(MX31_PIN_KEY_COL6, IOMUX_CONFIG_FUNC) #define MX31_PIN_KEY_COL7_KEY_COL7 IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_FUNC) +#define MX31_PIN_WATCHDOG_RST__WATCHDOG_RST IOMUX_MODE(MX31_PIN_WATCHDOG_RST, IOMUX_CONFIG_FUNC) /* diff --git a/arch/arm/plat-mxc/include/mach/mx25.h b/arch/arm/plat-mxc/include/mach/mx25.h index 087cd7ac8d5..ccebf5ba12f 100644 --- a/arch/arm/plat-mxc/include/mach/mx25.h +++ b/arch/arm/plat-mxc/include/mach/mx25.h @@ -41,6 +41,7 @@ #define MX25_SSI2_BASE_ADDR 0x50014000 #define MX25_SSI1_BASE_ADDR 0x50034000 #define MX25_NFC_BASE_ADDR 0xbb000000 +#define MX25_IIM_BASE_ADDR 0x53ff0000 #define MX25_DRYICE_BASE_ADDR 0x53ffc000 #define MX25_ESDHC1_BASE_ADDR 0x53fb4000 #define MX25_ESDHC2_BASE_ADDR 0x53fb8000 @@ -104,4 +105,8 @@ #define MX25_DMA_REQ_SSI1_RX0 28 #define MX25_DMA_REQ_SSI1_TX0 29 +#ifndef __ASSEMBLY__ +extern int mx25_revision(void); +#endif + #endif /* ifndef __MACH_MX25_H__ */ diff --git a/arch/arm/plat-mxc/include/mach/mx3x.h b/arch/arm/plat-mxc/include/mach/mx3x.h index 388a407d72d..30dbf424583 100644 --- a/arch/arm/plat-mxc/include/mach/mx3x.h +++ b/arch/arm/plat-mxc/include/mach/mx3x.h @@ -187,22 +187,8 @@ /* Mandatory defines used globally */ #if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS) - -extern unsigned int mx31_cpu_rev; -extern void mx31_read_cpu_rev(void); - -static inline int mx31_revision(void) -{ - return mx31_cpu_rev; -} - -extern unsigned int mx35_cpu_rev; -extern void mx35_read_cpu_rev(void); - -static inline int mx35_revision(void) -{ - return mx35_cpu_rev; -} +extern int mx35_revision(void); +extern int mx31_revision(void); #endif #endif /* ifndef __MACH_MX3x_H__ */ diff --git a/arch/arm/plat-mxc/irq-common.c b/arch/arm/plat-mxc/irq-common.c index 96953e2e4f1..b6e11458e5a 100644 --- a/arch/arm/plat-mxc/irq-common.c +++ b/arch/arm/plat-mxc/irq-common.c @@ -23,17 +23,17 @@ int imx_irq_set_priority(unsigned char irq, unsigned char prio) { - struct mxc_irq_chip *chip; - struct irq_chip *base; + struct irq_chip_generic *gc; + struct mxc_extra_irq *exirq; int ret; ret = -ENOSYS; - base = irq_get_chip(irq); - if (base) { - chip = container_of(base, struct mxc_irq_chip, base); - if (chip->set_priority) - ret = chip->set_priority(irq, prio); + gc = irq_get_chip_data(irq); + if (gc && gc->private) { + exirq = gc->private; + if (exirq->set_priority) + ret = exirq->set_priority(irq, prio); } return ret; @@ -43,15 +43,16 @@ EXPORT_SYMBOL(imx_irq_set_priority); int mxc_set_irq_fiq(unsigned int irq, unsigned int type) { struct irq_chip_generic *gc; - int (*set_irq_fiq)(unsigned int, unsigned int); + struct mxc_extra_irq *exirq; int ret; ret = -ENOSYS; gc = irq_get_chip_data(irq); if (gc && gc->private) { - set_irq_fiq = gc->private; - ret = set_irq_fiq(irq, type); + exirq = gc->private; + if (exirq->set_irq_fiq) + ret = exirq->set_irq_fiq(irq, type); } return ret; diff --git a/arch/arm/plat-mxc/irq-common.h b/arch/arm/plat-mxc/irq-common.h index 7203543fb1b..6ccb3a14c69 100644 --- a/arch/arm/plat-mxc/irq-common.h +++ b/arch/arm/plat-mxc/irq-common.h @@ -19,9 +19,8 @@ #ifndef __PLAT_MXC_IRQ_COMMON_H__ #define __PLAT_MXC_IRQ_COMMON_H__ -struct mxc_irq_chip +struct mxc_extra_irq { - struct irq_chip base; int (*set_priority)(unsigned char irq, unsigned char prio); int (*set_irq_fiq)(unsigned int irq, unsigned int type); }; diff --git a/arch/arm/plat-mxc/pwm.c b/arch/arm/plat-mxc/pwm.c index 761c3c940a6..42d74ea5908 100644 --- a/arch/arm/plat-mxc/pwm.c +++ b/arch/arm/plat-mxc/pwm.c @@ -57,7 +57,7 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) if (pwm == NULL || period_ns == 0 || duty_ns > period_ns) return -EINVAL; - if (cpu_is_mx27() || cpu_is_mx3() || cpu_is_mx25() || cpu_is_mx51()) { + if (!(cpu_is_mx1() || cpu_is_mx21())) { unsigned long long c; unsigned long period_cycles, duty_cycles, prescale; u32 cr; diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c index f257fccdc39..e993a184189 100644 --- a/arch/arm/plat-mxc/tzic.c +++ b/arch/arm/plat-mxc/tzic.c @@ -42,7 +42,7 @@ #define TZIC_SRCCLAR0 0x0280 /* Source Clear Register 0 */ #define TZIC_PRIORITY0 0x0400 /* Priority Register 0 */ #define TZIC_PND0 0x0D00 /* Pending Register 0 */ -#define TZIC_HIPND0 0x0D80 /* High Priority Pending Register */ +#define TZIC_HIPND(i) (0x0D80+ ((i) << 2)) /* High Priority Pending Register */ #define TZIC_WAKEUP0(i) (0x0E00 + ((i) << 2)) /* Wakeup Config Register */ #define TZIC_SWINT 0x0F00 /* Software Interrupt Rigger Register */ #define TZIC_ID0 0x0FD0 /* Indentification Register 0 */ @@ -74,6 +74,12 @@ static int tzic_set_irq_fiq(unsigned int irq, unsigned int type) static unsigned int *wakeup_intr[4]; +static struct mxc_extra_irq tzic_extra_irq = { +#ifdef CONFIG_FIQ + .set_irq_fiq = tzic_set_irq_fiq, +#endif +}; + static __init void tzic_init_gc(unsigned int irq_start) { struct irq_chip_generic *gc; @@ -82,7 +88,7 @@ static __init void tzic_init_gc(unsigned int irq_start) gc = irq_alloc_generic_chip("tzic", 1, irq_start, tzic_base, handle_level_irq); - gc->private = tzic_set_irq_fiq; + gc->private = &tzic_extra_irq; gc->wake_enabled = IRQ_MSK(32); wakeup_intr[idx] = &gc->wake_active; @@ -96,6 +102,28 @@ static __init void tzic_init_gc(unsigned int irq_start) irq_setup_generic_chip(gc, IRQ_MSK(32), 0, IRQ_NOREQUEST, 0); } +asmlinkage void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs) +{ + u32 stat; + int i, irqofs, handled; + + do { + handled = 0; + + for (i = 0; i < 4; i++) { + stat = __raw_readl(tzic_base + TZIC_HIPND(i)) & + __raw_readl(tzic_base + TZIC_INTSEC0(i)); + + while (stat) { + handled = 1; + irqofs = fls(stat) - 1; + handle_IRQ(irqofs + i * 32, regs); + stat &= ~(1 << irqofs); + } + } + } while (handled); +} + /* * This function initializes the TZIC hardware and disables all the * interrupts. It registers the interrupt enable and disable functions |