diff options
Diffstat (limited to 'arch/arm/mach-versatile/core.c')
| -rw-r--r-- | arch/arm/mach-versatile/core.c | 89 |
1 files changed, 65 insertions, 24 deletions
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 5d592945036..be83ba25f81 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -32,15 +32,17 @@ #include <linux/amba/mmci.h> #include <linux/amba/pl022.h> #include <linux/io.h> +#include <linux/irqchip/arm-vic.h> #include <linux/irqchip/versatile-fpga.h> #include <linux/gfp.h> #include <linux/clkdev.h> #include <linux/mtd/physmap.h> +#include <linux/bitops.h> +#include <linux/reboot.h> #include <asm/irq.h> #include <asm/hardware/arm_timer.h> #include <asm/hardware/icst.h> -#include <asm/hardware/vic.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -65,16 +67,28 @@ #define VA_VIC_BASE __io_address(VERSATILE_VIC_BASE) #define VA_SIC_BASE __io_address(VERSATILE_SIC_BASE) +/* These PIC IRQs are valid in each configuration */ +#define PIC_VALID_ALL BIT(SIC_INT_KMI0) | BIT(SIC_INT_KMI1) | \ + BIT(SIC_INT_SCI3) | BIT(SIC_INT_UART3) | \ + BIT(SIC_INT_CLCD) | BIT(SIC_INT_TOUCH) | \ + BIT(SIC_INT_KEYPAD) | BIT(SIC_INT_DoC) | \ + BIT(SIC_INT_USB) | BIT(SIC_INT_PCI0) | \ + BIT(SIC_INT_PCI1) | BIT(SIC_INT_PCI2) | \ + BIT(SIC_INT_PCI3) #if 1 #define IRQ_MMCI0A IRQ_VICSOURCE22 #define IRQ_AACI IRQ_VICSOURCE24 #define IRQ_ETH IRQ_VICSOURCE25 #define PIC_MASK 0xFFD00000 +#define PIC_VALID PIC_VALID_ALL #else #define IRQ_MMCI0A IRQ_SIC_MMCI0A #define IRQ_AACI IRQ_SIC_AACI #define IRQ_ETH IRQ_SIC_ETH #define PIC_MASK 0 +#define PIC_VALID PIC_VALID_ALL | BIT(SIC_INT_MMCI0A) | \ + BIT(SIC_INT_MMCI1A) | BIT(SIC_INT_AACI) | \ + BIT(SIC_INT_ETH) #endif /* Lookup table for finding a DT node that represents the vic instance */ @@ -94,7 +108,7 @@ void __init versatile_init_irq(void) np = of_find_matching_node_by_address(NULL, vic_of_match, VERSATILE_VIC_BASE); - __vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0, np); + __vic_init(VA_VIC_BASE, 0, IRQ_VIC_START, ~0, 0, np); writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); @@ -102,7 +116,7 @@ void __init versatile_init_irq(void) VERSATILE_SIC_BASE); fpga_irq_init(VA_SIC_BASE, "SIC", IRQ_SIC_START, - IRQ_VICSOURCE31, ~PIC_MASK, np); + IRQ_VICSOURCE31, PIC_VALID, np); /* * Interrupts on secondary controller from 0 to 8 are routed to @@ -114,7 +128,7 @@ void __init versatile_init_irq(void) writel(PIC_MASK, VA_SIC_BASE + SIC_INT_PIC_ENABLE); } -static struct map_desc versatile_io_desc[] __initdata = { +static struct map_desc versatile_io_desc[] __initdata __maybe_unused = { { .virtual = IO_ADDRESS(VERSATILE_SYS_BASE), .pfn = __phys_to_pfn(VERSATILE_SYS_BASE), @@ -296,6 +310,21 @@ static struct platform_device char_lcd_device = { .resource = char_lcd_resources, }; +static struct resource leds_resources[] = { + { + .start = VERSATILE_SYS_BASE + VERSATILE_SYS_LED_OFFSET, + .end = VERSATILE_SYS_BASE + VERSATILE_SYS_LED_OFFSET + 4, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device leds_device = { + .name = "versatile-leds", + .id = -1, + .num_resources = ARRAY_SIZE(leds_resources), + .resource = leds_resources, +}; + /* * Clock handling */ @@ -556,6 +585,16 @@ static struct pl061_platform_data gpio1_plat_data = { .irq_base = IRQ_GPIO1_START, }; +static struct pl061_platform_data gpio2_plat_data = { + .gpio_base = 16, + .irq_base = IRQ_GPIO2_START, +}; + +static struct pl061_platform_data gpio3_plat_data = { + .gpio_base = 24, + .irq_base = IRQ_GPIO3_START, +}; + static struct pl022_ssp_controller ssp0_plat_data = { .bus_id = 0, .enable_dma = 0, @@ -582,6 +621,8 @@ static struct pl022_ssp_controller ssp0_plat_data = { #define WATCHDOG_IRQ { IRQ_WDOGINT } #define GPIO0_IRQ { IRQ_GPIOINT0 } #define GPIO1_IRQ { IRQ_GPIOINT1 } +#define GPIO2_IRQ { IRQ_GPIOINT2 } +#define GPIO3_IRQ { IRQ_GPIOINT3 } #define RTC_IRQ { IRQ_RTCINT } /* @@ -608,6 +649,8 @@ APB_DEVICE(sctl, "dev:e0", SCTL, NULL); APB_DEVICE(wdog, "dev:e1", WATCHDOG, NULL); APB_DEVICE(gpio0, "dev:e4", GPIO0, &gpio0_plat_data); APB_DEVICE(gpio1, "dev:e5", GPIO1, &gpio1_plat_data); +APB_DEVICE(gpio2, "dev:e6", GPIO2, &gpio2_plat_data); +APB_DEVICE(gpio3, "dev:e7", GPIO3, &gpio3_plat_data); APB_DEVICE(rtc, "dev:e8", RTC, NULL); APB_DEVICE(sci0, "dev:f0", SCI, NULL); APB_DEVICE(uart0, "dev:f1", UART0, NULL); @@ -627,6 +670,8 @@ static struct amba_device *amba_devs[] __initdata = { &wdog_device, &gpio0_device, &gpio1_device, + &gpio2_device, + &gpio3_device, &rtc_device, &sci0_device, &ssp0_device, @@ -720,7 +765,7 @@ static void versatile_leds_event(led_event_t ledevt) } #endif /* CONFIG_LEDS */ -void versatile_restart(char mode, const char *cmd) +void versatile_restart(enum reboot_mode mode, const char *cmd) { void __iomem *sys = __io_address(VERSATILE_SYS_BASE); u32 val; @@ -736,12 +781,25 @@ void versatile_restart(char mode, const char *cmd) /* Early initializations */ void __init versatile_init_early(void) { + u32 val; void __iomem *sys = __io_address(VERSATILE_SYS_BASE); osc4_clk.vcoreg = sys + VERSATILE_SYS_OSCCLCD_OFFSET; clkdev_add_table(lookups, ARRAY_SIZE(lookups)); versatile_sched_clock_init(sys + VERSATILE_SYS_24MHz_OFFSET, 24000000); + + /* + * set clock frequency: + * VERSATILE_REFCLK is 32KHz + * VERSATILE_TIMCLK is 1MHz + */ + val = readl(__io_address(VERSATILE_SCTL_BASE)); + writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, + __io_address(VERSATILE_SCTL_BASE)); } void __init versatile_init(void) @@ -752,6 +810,7 @@ void __init versatile_init(void) platform_device_register(&versatile_i2c_device); platform_device_register(&smc91x_device); platform_device_register(&char_lcd_device); + platform_device_register(&leds_device); for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { struct amba_device *d = amba_devs[i]; @@ -770,21 +829,8 @@ void __init versatile_init(void) /* * Set up timer interrupt, and return the current time in seconds. */ -static void __init versatile_timer_init(void) +void __init versatile_timer_init(void) { - u32 val; - - /* - * set clock frequency: - * VERSATILE_REFCLK is 32KHz - * VERSATILE_TIMCLK is 1MHz - */ - val = readl(__io_address(VERSATILE_SCTL_BASE)); - writel((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | - (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | - (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | - (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel) | val, - __io_address(VERSATILE_SCTL_BASE)); /* * Initialise to a known state (all timers off) @@ -797,8 +843,3 @@ static void __init versatile_timer_init(void) sp804_clocksource_init(TIMER3_VA_BASE, "timer3"); sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMERINT0_1, "timer0"); } - -struct sys_timer versatile_timer = { - .init = versatile_timer_init, -}; - |