diff options
Diffstat (limited to 'arch/arm/mach-at91')
33 files changed, 331 insertions, 789 deletions
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 1947a09e5a3f..0e6d548b70d9 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -36,17 +36,6 @@ config OLD_IRQ_AT91 select MULTI_IRQ_HANDLER select SPARSE_IRQ -config AT91_SAM9_ALT_RESET - bool - default !ARCH_AT91X40 - -config AT91_SAM9G45_RESET - bool - default !ARCH_AT91X40 - -config AT91_SAM9_TIME - bool - config HAVE_AT91_SMD bool @@ -55,18 +44,20 @@ config HAVE_AT91_H32MX config SOC_AT91SAM9 bool - select AT91_SAM9_TIME select ATMEL_AIC_IRQ if !OLD_IRQ_AT91 select CPU_ARM926T select GENERIC_CLOCKEVENTS + select MEMORY if USE_OF + select ATMEL_SDRAMC if USE_OF config SOC_SAMA5 bool - select AT91_SAM9_TIME select ATMEL_AIC5_IRQ select CPU_V7 select GENERIC_CLOCKEVENTS select USE_OF + select MEMORY + select ATMEL_SDRAMC menu "Atmel AT91 System-on-Chip" diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 603365e44ed5..ac99d87ffefe 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -9,9 +9,6 @@ obj- := obj-$(CONFIG_OLD_IRQ_AT91) += irq.o obj-$(CONFIG_OLD_CLK_AT91) += clock.o -obj-$(CONFIG_AT91_SAM9_ALT_RESET) += at91sam9_alt_reset.o -obj-$(CONFIG_AT91_SAM9G45_RESET) += at91sam9g45_reset.o -obj-$(CONFIG_AT91_SAM9_TIME) += at91sam926x_time.o obj-$(CONFIG_SOC_AT91SAM9) += sam9_smc.o # CPU-specific support diff --git a/arch/arm/mach-at91/at91_rstc.h b/arch/arm/mach-at91/at91_rstc.h deleted file mode 100644 index a600e6992920..000000000000 --- a/arch/arm/mach-at91/at91_rstc.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * arch/arm/mach-at91/include/mach/at91_rstc.h - * - * Copyright (C) 2007 Andrew Victor - * Copyright (C) 2007 Atmel Corporation. - * - * Reset Controller (RSTC) - System peripherals regsters. - * Based on AT91SAM9261 datasheet revision D. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef AT91_RSTC_H -#define AT91_RSTC_H - -#ifndef __ASSEMBLY__ -extern void __iomem *at91_rstc_base; - -#define at91_rstc_read(field) \ - __raw_readl(at91_rstc_base + field) - -#define at91_rstc_write(field, value) \ - __raw_writel(value, at91_rstc_base + field) -#else -.extern at91_rstc_base -#endif - -#define AT91_RSTC_CR 0x00 /* Reset Controller Control Register */ -#define AT91_RSTC_PROCRST (1 << 0) /* Processor Reset */ -#define AT91_RSTC_PERRST (1 << 2) /* Peripheral Reset */ -#define AT91_RSTC_EXTRST (1 << 3) /* External Reset */ -#define AT91_RSTC_KEY (0xa5 << 24) /* KEY Password */ - -#define AT91_RSTC_SR 0x04 /* Reset Controller Status Register */ -#define AT91_RSTC_URSTS (1 << 0) /* User Reset Status */ -#define AT91_RSTC_RSTTYP (7 << 8) /* Reset Type */ -#define AT91_RSTC_RSTTYP_GENERAL (0 << 8) -#define AT91_RSTC_RSTTYP_WAKEUP (1 << 8) -#define AT91_RSTC_RSTTYP_WATCHDOG (2 << 8) -#define AT91_RSTC_RSTTYP_SOFTWARE (3 << 8) -#define AT91_RSTC_RSTTYP_USER (4 << 8) -#define AT91_RSTC_NRSTL (1 << 16) /* NRST Pin Level */ -#define AT91_RSTC_SRCMP (1 << 17) /* Software Reset Command in Progress */ - -#define AT91_RSTC_MR 0x08 /* Reset Controller Mode Register */ -#define AT91_RSTC_URSTEN (1 << 0) /* User Reset Enable */ -#define AT91_RSTC_URSTIEN (1 << 4) /* User Reset Interrupt Enable */ -#define AT91_RSTC_ERSTL (0xf << 8) /* External Reset Length */ - -#endif diff --git a/arch/arm/mach-at91/at91_shdwc.h b/arch/arm/mach-at91/at91_shdwc.h deleted file mode 100644 index 9e29f31ec9a6..000000000000 --- a/arch/arm/mach-at91/at91_shdwc.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * arch/arm/mach-at91/include/mach/at91_shdwc.h - * - * Copyright (C) 2007 Andrew Victor - * Copyright (C) 2007 Atmel Corporation. - * - * Shutdown Controller (SHDWC) - System peripherals regsters. - * Based on AT91SAM9261 datasheet revision D. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef AT91_SHDWC_H -#define AT91_SHDWC_H - -#ifndef __ASSEMBLY__ -extern void __iomem *at91_shdwc_base; - -#define at91_shdwc_read(field) \ - __raw_readl(at91_shdwc_base + field) - -#define at91_shdwc_write(field, value) \ - __raw_writel(value, at91_shdwc_base + field) -#endif - -#define AT91_SHDW_CR 0x00 /* Shut Down Control Register */ -#define AT91_SHDW_SHDW (1 << 0) /* Shut Down command */ -#define AT91_SHDW_KEY (0xa5 << 24) /* KEY Password */ - -#define AT91_SHDW_MR 0x04 /* Shut Down Mode Register */ -#define AT91_SHDW_WKMODE0 (3 << 0) /* Wake-up 0 Mode Selection */ -#define AT91_SHDW_WKMODE0_NONE 0 -#define AT91_SHDW_WKMODE0_HIGH 1 -#define AT91_SHDW_WKMODE0_LOW 2 -#define AT91_SHDW_WKMODE0_ANYLEVEL 3 -#define AT91_SHDW_CPTWK0_MAX 0xf /* Maximum Counter On Wake Up 0 */ -#define AT91_SHDW_CPTWK0 (AT91_SHDW_CPTWK0_MAX << 4) /* Counter On Wake Up 0 */ -#define AT91_SHDW_CPTWK0_(x) ((x) << 4) -#define AT91_SHDW_RTTWKEN (1 << 16) /* Real Time Timer Wake-up Enable */ -#define AT91_SHDW_RTCWKEN (1 << 17) /* Real Time Clock Wake-up Enable */ - -#define AT91_SHDW_SR 0x08 /* Shut Down Status Register */ -#define AT91_SHDW_WAKEUP0 (1 << 0) /* Wake-up 0 Status */ -#define AT91_SHDW_RTTWK (1 << 16) /* Real-time Timer Wake-up */ -#define AT91_SHDW_RTCWK (1 << 17) /* Real-time Clock Wake-up [SAM9RL] */ - -#endif diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index 3477ba94c4c5..aab1f969a7c3 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -11,6 +11,7 @@ */ #include <linux/module.h> +#include <linux/platform_device.h> #include <linux/clk/at91_pmc.h> #include <asm/proc-fns.h> @@ -24,7 +25,6 @@ #include <mach/hardware.h> #include "at91_aic.h" -#include "at91_rstc.h" #include "soc.h" #include "generic.h" #include "sam9_smc.h" @@ -342,8 +342,6 @@ static void __init at91sam9260_map_io(void) static void __init at91sam9260_ioremap_registers(void) { - at91_ioremap_shdwc(AT91SAM9260_BASE_SHDWC); - at91_ioremap_rstc(AT91SAM9260_BASE_RSTC); at91_ioremap_ramc(0, AT91SAM9260_BASE_SDRAMC, 512); at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT); at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC); @@ -354,7 +352,6 @@ static void __init at91sam9260_ioremap_registers(void) static void __init at91sam9260_initialize(void) { arm_pm_idle = at91sam9_idle; - arm_pm_restart = at91sam9_alt_restart; at91_sysirq_mask_rtt(AT91SAM9260_BASE_RTT); @@ -362,6 +359,45 @@ static void __init at91sam9260_initialize(void) at91_gpio_init(at91sam9260_gpio, 3); } +static struct resource rstc_resources[] = { + [0] = { + .start = AT91SAM9260_BASE_RSTC, + .end = AT91SAM9260_BASE_RSTC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9260_BASE_SDRAMC, + .end = AT91SAM9260_BASE_SDRAMC + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device rstc_device = { + .name = "at91-sam9260-reset", + .resource = rstc_resources, + .num_resources = ARRAY_SIZE(rstc_resources), +}; + +static struct resource shdwc_resources[] = { + [0] = { + .start = AT91SAM9260_BASE_SHDWC, + .end = AT91SAM9260_BASE_SHDWC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device shdwc_device = { + .name = "at91-poweroff", + .resource = shdwc_resources, + .num_resources = ARRAY_SIZE(shdwc_resources), +}; + +static void __init at91sam9260_register_devices(void) +{ + platform_device_register(&rstc_device); + platform_device_register(&shdwc_device); +} + /* -------------------------------------------------------------------- * Interrupt initialization * -------------------------------------------------------------------- */ @@ -404,6 +440,11 @@ static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = { 0, /* Advanced Interrupt Controller */ }; +static void __init at91sam9260_init_time(void) +{ + at91sam926x_pit_init(NR_IRQS_LEGACY + AT91_ID_SYS); +} + AT91_SOC_START(at91sam9260) .map_io = at91sam9260_map_io, .default_irq_priority = at91sam9260_default_irq_priority, @@ -411,5 +452,7 @@ AT91_SOC_START(at91sam9260) | (1 << AT91SAM9260_ID_IRQ2), .ioremap_registers = at91sam9260_ioremap_registers, .register_clocks = at91sam9260_register_clocks, + .register_devices = at91sam9260_register_devices, .init = at91sam9260_initialize, + .init_time = at91sam9260_init_time, AT91_SOC_END diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c index fb164a5d04a9..a8bd35963332 100644 --- a/arch/arm/mach-at91/at91sam9261.c +++ b/arch/arm/mach-at91/at91sam9261.c @@ -11,6 +11,7 @@ */ #include <linux/module.h> +#include <linux/platform_device.h> #include <linux/clk/at91_pmc.h> #include <asm/proc-fns.h> @@ -23,7 +24,6 @@ #include <mach/hardware.h> #include "at91_aic.h" -#include "at91_rstc.h" #include "soc.h" #include "generic.h" #include "sam9_smc.h" @@ -301,8 +301,6 @@ static void __init at91sam9261_map_io(void) static void __init at91sam9261_ioremap_registers(void) { - at91_ioremap_shdwc(AT91SAM9261_BASE_SHDWC); - at91_ioremap_rstc(AT91SAM9261_BASE_RSTC); at91_ioremap_ramc(0, AT91SAM9261_BASE_SDRAMC, 512); at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT); at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC); @@ -313,7 +311,6 @@ static void __init at91sam9261_ioremap_registers(void) static void __init at91sam9261_initialize(void) { arm_pm_idle = at91sam9_idle; - arm_pm_restart = at91sam9_alt_restart; at91_sysirq_mask_rtt(AT91SAM9261_BASE_RTT); @@ -321,6 +318,45 @@ static void __init at91sam9261_initialize(void) at91_gpio_init(at91sam9261_gpio, 3); } +static struct resource rstc_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_RSTC, + .end = AT91SAM9261_BASE_RSTC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_BASE_SDRAMC, + .end = AT91SAM9261_BASE_SDRAMC + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device rstc_device = { + .name = "at91-sam9260-reset", + .resource = rstc_resources, + .num_resources = ARRAY_SIZE(rstc_resources), +}; + +static struct resource shdwc_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SHDWC, + .end = AT91SAM9261_BASE_SHDWC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device shdwc_device = { + .name = "at91-poweroff", + .resource = shdwc_resources, + .num_resources = ARRAY_SIZE(shdwc_resources), +}; + +static void __init at91sam9261_register_devices(void) +{ + platform_device_register(&rstc_device); + platform_device_register(&shdwc_device); +} + /* -------------------------------------------------------------------- * Interrupt initialization * -------------------------------------------------------------------- */ @@ -363,6 +399,11 @@ static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = { 0, /* Advanced Interrupt Controller */ }; +static void __init at91sam9261_init_time(void) +{ + at91sam926x_pit_init(NR_IRQS_LEGACY + AT91_ID_SYS); +} + AT91_SOC_START(at91sam9261) .map_io = at91sam9261_map_io, .default_irq_priority = at91sam9261_default_irq_priority, @@ -370,5 +411,7 @@ AT91_SOC_START(at91sam9261) | (1 << AT91SAM9261_ID_IRQ2), .ioremap_registers = at91sam9261_ioremap_registers, .register_clocks = at91sam9261_register_clocks, + .register_devices = at91sam9261_register_devices, .init = at91sam9261_initialize, + .init_time = at91sam9261_init_time, AT91_SOC_END diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index 810fa5f15a51..fbff228cc63e 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -11,6 +11,7 @@ */ #include <linux/module.h> +#include <linux/platform_device.h> #include <linux/clk/at91_pmc.h> #include <asm/proc-fns.h> @@ -22,7 +23,6 @@ #include <mach/hardware.h> #include "at91_aic.h" -#include "at91_rstc.h" #include "soc.h" #include "generic.h" #include "sam9_smc.h" @@ -321,8 +321,6 @@ static void __init at91sam9263_map_io(void) static void __init at91sam9263_ioremap_registers(void) { - at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC); - at91_ioremap_rstc(AT91SAM9263_BASE_RSTC); at91_ioremap_ramc(0, AT91SAM9263_BASE_SDRAMC0, 512); at91_ioremap_ramc(1, AT91SAM9263_BASE_SDRAMC1, 512); at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT); @@ -335,7 +333,6 @@ static void __init at91sam9263_ioremap_registers(void) static void __init at91sam9263_initialize(void) { arm_pm_idle = at91sam9_idle; - arm_pm_restart = at91sam9_alt_restart; at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT0); at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT1); @@ -344,6 +341,45 @@ static void __init at91sam9263_initialize(void) at91_gpio_init(at91sam9263_gpio, 5); } +static struct resource rstc_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_RSTC, + .end = AT91SAM9263_BASE_RSTC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_BASE_SDRAMC0, + .end = AT91SAM9263_BASE_SDRAMC0 + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device rstc_device = { + .name = "at91-sam9260-reset", + .resource = rstc_resources, + .num_resources = ARRAY_SIZE(rstc_resources), +}; + +static struct resource shdwc_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_SHDWC, + .end = AT91SAM9263_BASE_SHDWC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device shdwc_device = { + .name = "at91-poweroff", + .resource = shdwc_resources, + .num_resources = ARRAY_SIZE(shdwc_resources), +}; + +static void __init at91sam9263_register_devices(void) +{ + platform_device_register(&rstc_device); + platform_device_register(&shdwc_device); +} + /* -------------------------------------------------------------------- * Interrupt initialization * -------------------------------------------------------------------- */ @@ -386,11 +422,18 @@ static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = { 0, /* Advanced Interrupt Controller (IRQ1) */ }; +static void __init at91sam9263_init_time(void) +{ + at91sam926x_pit_init(NR_IRQS_LEGACY + AT91_ID_SYS); +} + AT91_SOC_START(at91sam9263) .map_io = at91sam9263_map_io, .default_irq_priority = at91sam9263_default_irq_priority, .extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1), .ioremap_registers = at91sam9263_ioremap_registers, .register_clocks = at91sam9263_register_clocks, + .register_devices = at91sam9263_register_devices, .init = at91sam9263_initialize, + .init_time = at91sam9263_init_time, AT91_SOC_END diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c deleted file mode 100644 index 0a9e2fc8f796..000000000000 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ /dev/null @@ -1,294 +0,0 @@ -/* - * at91sam926x_time.c - Periodic Interval Timer (PIT) for at91sam926x - * - * Copyright (C) 2005-2006 M. Amine SAYA, ATMEL Rousset, France - * Revision 2005 M. Nicolas Diremdjian, ATMEL Rousset, France - * Converted to ClockSource/ClockEvents by David Brownell. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/kernel.h> -#include <linux/clk.h> -#include <linux/clockchips.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> - -#include <asm/mach/time.h> -#include <mach/hardware.h> - -#define AT91_PIT_MR 0x00 /* Mode Register */ -#define AT91_PIT_PITIEN (1 << 25) /* Timer Interrupt Enable */ -#define AT91_PIT_PITEN (1 << 24) /* Timer Enabled */ -#define AT91_PIT_PIV (0xfffff) /* Periodic Interval Value */ - -#define AT91_PIT_SR 0x04 /* Status Register */ -#define AT91_PIT_PITS (1 << 0) /* Timer Status */ - -#define AT91_PIT_PIVR 0x08 /* Periodic Interval Value Register */ -#define AT91_PIT_PIIR 0x0c /* Periodic Interval Image Register */ -#define AT91_PIT_PICNT (0xfff << 20) /* Interval Counter */ -#define AT91_PIT_CPIV (0xfffff) /* Inverval Value */ - -#define PIT_CPIV(x) ((x) & AT91_PIT_CPIV) -#define PIT_PICNT(x) (((x) & AT91_PIT_PICNT) >> 20) - -static u32 pit_cycle; /* write-once */ -static u32 pit_cnt; /* access only w/system irq blocked */ -static void __iomem *pit_base_addr __read_mostly; -static struct clk *mck; - -static inline unsigned int pit_read(unsigned int reg_offset) -{ - return __raw_readl(pit_base_addr + reg_offset); -} - -static inline void pit_write(unsigned int reg_offset, unsigned long value) -{ - __raw_writel(value, pit_base_addr + reg_offset); -} - -/* - * Clocksource: just a monotonic counter of MCK/16 cycles. - * We don't care whether or not PIT irqs are enabled. - */ -static cycle_t read_pit_clk(struct clocksource *cs) -{ - unsigned long flags; - u32 elapsed; - u32 t; - - raw_local_irq_save(flags); - elapsed = pit_cnt; - t = pit_read(AT91_PIT_PIIR); - raw_local_irq_restore(flags); - - elapsed += PIT_PICNT(t) * pit_cycle; - elapsed += PIT_CPIV(t); - return elapsed; -} - -static struct clocksource pit_clk = { - .name = "pit", - .rating = 175, - .read = read_pit_clk, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - - -/* - * Clockevent device: interrupts every 1/HZ (== pit_cycles * MCK/16) - */ -static void -pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev) -{ - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - /* update clocksource counter */ - pit_cnt += pit_cycle * PIT_PICNT(pit_read(AT91_PIT_PIVR)); - pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN - | AT91_PIT_PITIEN); - break; - case CLOCK_EVT_MODE_ONESHOT: - BUG(); - /* FALLTHROUGH */ - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_UNUSED: - /* disable irq, leaving the clocksource active */ - pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); - break; - case CLOCK_EVT_MODE_RESUME: - break; - } -} - -static void at91sam926x_pit_suspend(struct clock_event_device *cedev) -{ - /* Disable timer */ - pit_write(AT91_PIT_MR, 0); -} - -static void at91sam926x_pit_reset(void) -{ - /* Disable timer and irqs */ - pit_write(AT91_PIT_MR, 0); - - /* Clear any pending interrupts, wait for PIT to stop counting */ - while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0) - cpu_relax(); - - /* Start PIT but don't enable IRQ */ - pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN); -} - -static void at91sam926x_pit_resume(struct clock_event_device *cedev) -{ - at91sam926x_pit_reset(); -} - -static struct clock_event_device pit_clkevt = { - .name = "pit", - .features = CLOCK_EVT_FEAT_PERIODIC, - .shift = 32, - .rating = 100, - .set_mode = pit_clkevt_mode, - .suspend = at91sam926x_pit_suspend, - .resume = at91sam926x_pit_resume, -}; - - -/* - * IRQ handler for the timer. - */ -static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id) -{ - /* - * irqs should be disabled here, but as the irq is shared they are only - * guaranteed to be off if the timer irq is registered first. - */ - WARN_ON_ONCE(!irqs_disabled()); - - /* The PIT interrupt may be disabled, and is shared */ - if ((pit_clkevt.mode == CLOCK_EVT_MODE_PERIODIC) - && (pit_read(AT91_PIT_SR) & AT91_PIT_PITS)) { - unsigned nr_ticks; - - /* Get number of ticks performed before irq, and ack it */ - nr_ticks = PIT_PICNT(pit_read(AT91_PIT_PIVR)); - do { - pit_cnt += pit_cycle; - pit_clkevt.event_handler(&pit_clkevt); - nr_ticks--; - } while (nr_ticks); - - return IRQ_HANDLED; - } - - return IRQ_NONE; -} - -static struct irqaction at91sam926x_pit_irq = { - .name = "at91_tick", - .flags = IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = at91sam926x_pit_interrupt, - .irq = NR_IRQS_LEGACY + AT91_ID_SYS, -}; - -#ifdef CONFIG_OF -static struct of_device_id pit_timer_ids[] = { - { .compatible = "atmel,at91sam9260-pit" }, - { /* sentinel */ } -}; - -static int __init of_at91sam926x_pit_init(void) -{ - struct device_node *np; - int ret; - - np = of_find_matching_node(NULL, pit_timer_ids); - if (!np) - goto err; - - pit_base_addr = of_iomap(np, 0); - if (!pit_base_addr) - goto node_err; - - mck = of_clk_get(np, 0); - - /* Get the interrupts property */ - ret = irq_of_parse_and_map(np, 0); - if (!ret) { - pr_crit("AT91: PIT: Unable to get IRQ from DT\n"); - if (!IS_ERR(mck)) - clk_put(mck); - goto ioremap_err; - } - at91sam926x_pit_irq.irq = ret; - - of_node_put(np); - - return 0; - -ioremap_err: - iounmap(pit_base_addr); -node_err: - of_node_put(np); -err: - return -EINVAL; -} -#else -static int __init of_at91sam926x_pit_init(void) -{ - return -EINVAL; -} -#endif - -/* - * Set up both clocksource and clockevent support. - */ -void __init at91sam926x_pit_init(void) -{ - unsigned long pit_rate; - unsigned bits; - int ret; - - mck = ERR_PTR(-ENOENT); - - /* For device tree enabled device: initialize here */ - of_at91sam926x_pit_init(); - - /* - * Use our actual MCK to figure out how many MCK/16 ticks per - * 1/HZ period (instead of a compile-time constant LATCH). - */ - if (IS_ERR(mck)) - mck = clk_get(NULL, "mck"); - - if (IS_ERR(mck)) - panic("AT91: PIT: Unable to get mck clk\n"); - pit_rate = clk_get_rate(mck) / 16; - pit_cycle = (pit_rate + HZ/2) / HZ; - WARN_ON(((pit_cycle - 1) & ~AT91_PIT_PIV) != 0); - - /* Initialize and enable the timer */ - at91sam926x_pit_reset(); - - /* - * Register clocksource. The high order bits of PIV are unused, - * so this isn't a 32-bit counter unless we get clockevent irqs. - */ - bits = 12 /* PICNT */ + ilog2(pit_cycle) /* PIV */; - pit_clk.mask = CLOCKSOURCE_MASK(bits); - clocksource_register_hz(&pit_clk, pit_rate); - - /* Set up irq handler */ - ret = setup_irq(at91sam926x_pit_irq.irq, &at91sam926x_pit_irq); - if (ret) - pr_crit("AT91: PIT: Unable to setup IRQ\n"); - - /* Set up and register clockevents */ - pit_clkevt.mult = div_sc(pit_rate, NSEC_PER_SEC, pit_clkevt.shift); - pit_clkevt.cpumask = cpumask_of(0); - clockevents_register_device(&pit_clkevt); -} - -void __init at91sam926x_ioremap_pit(u32 addr) -{ -#if defined(CONFIG_OF) - struct device_node *np = - of_find_matching_node(NULL, pit_timer_ids); - - if (np) { - of_node_put(np); - return; - } -#endif - pit_base_addr = ioremap(addr, 16); - - if (!pit_base_addr) - panic("Impossible to ioremap PIT\n"); -} diff --git a/arch/arm/mach-at91/at91sam9_alt_reset.S b/arch/arm/mach-at91/at91sam9_alt_reset.S deleted file mode 100644 index f039538d3bdb..000000000000 --- a/arch/arm/mach-at91/at91sam9_alt_reset.S +++ /dev/null @@ -1,40 +0,0 @@ -/* - * reset AT91SAM9G20 as per errata - * - * (C) BitBox Ltd 2010 - * - * unless the SDRAM is cleanly shutdown before we hit the - * reset register it can be left driving the data bus and - * killing the chance of a subsequent boot from NAND - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/linkage.h> -#include <mach/hardware.h> -#include <mach/at91_ramc.h> -#include "at91_rstc.h" - - .arm - - .globl at91sam9_alt_restart - -at91sam9_alt_restart: ldr r0, =at91_ramc_base @ preload constants - ldr r0, [r0] - ldr r4, =at91_rstc_base - ldr r1, [r4] - - mov r2, #1 - mov r3, #AT91_SDRAMC_LPCB_POWER_DOWN - ldr r4, =AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST - - .balign 32 @ align to cache line - - str r2, [r0, #AT91_SDRAMC_TR] @ disable SDRAM access - str r3, [r0, #AT91_SDRAMC_LPR] @ power down SDRAM - str r4, [r1, #AT91_RSTC_CR] @ reset processor - - b . diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index 9d45496e4932..405427ec05f8 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -13,6 +13,7 @@ #include <linux/module.h> #include <linux/dma-mapping.h> #include <linux/clk/at91_pmc.h> +#include <linux/platform_device.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -371,8 +372,6 @@ static void __init at91sam9g45_map_io(void) static void __init at91sam9g45_ioremap_registers(void) { - at91_ioremap_shdwc(AT91SAM9G45_BASE_SHDWC); - at91_ioremap_rstc(AT91SAM9G45_BASE_RSTC); at91_ioremap_ramc(0, AT91SAM9G45_BASE_DDRSDRC1, 512); at91_ioremap_ramc(1, AT91SAM9G45_BASE_DDRSDRC0, 512); at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT); @@ -384,7 +383,6 @@ static void __init at91sam9g45_ioremap_registers(void) static void __init at91sam9g45_initialize(void) { arm_pm_idle = at91sam9_idle; - arm_pm_restart = at91sam9g45_restart; at91_sysirq_mask_rtc(AT91SAM9G45_BASE_RTC); at91_sysirq_mask_rtt(AT91SAM9G45_BASE_RTT); @@ -393,6 +391,50 @@ static void __init at91sam9g45_initialize(void) at91_gpio_init(at91sam9g45_gpio, 5); } +static struct resource rstc_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_RSTC, + .end = AT91SAM9G45_BASE_RSTC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_BASE_DDRSDRC1, + .end = AT91SAM9G45_BASE_DDRSDRC1 + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = AT91SAM9G45_BASE_DDRSDRC0, + .end = AT91SAM9G45_BASE_DDRSDRC0 + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device rstc_device = { + .name = "at91-sam9g45-reset", + .resource = rstc_resources, + .num_resources = ARRAY_SIZE(rstc_resources), +}; + +static struct resource shdwc_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_SHDWC, + .end = AT91SAM9G45_BASE_SHDWC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device shdwc_device = { + .name = "at91-poweroff", + .resource = shdwc_resources, + .num_resources = ARRAY_SIZE(shdwc_resources), +}; + +static void __init at91sam9g45_register_devices(void) +{ + platform_device_register(&rstc_device); + platform_device_register(&shdwc_device); +} + /* -------------------------------------------------------------------- * Interrupt initialization * -------------------------------------------------------------------- */ @@ -435,11 +477,18 @@ static unsigned int at91sam9g45_default_irq_priority[NR_AIC_IRQS] __initdata = { 0, /* Advanced Interrupt Controller (IRQ0) */ }; +static void __init at91sam9g45_init_time(void) +{ + at91sam926x_pit_init(NR_IRQS_LEGACY + AT91_ID_SYS); +} + AT91_SOC_START(at91sam9g45) .map_io = at91sam9g45_map_io, .default_irq_priority = at91sam9g45_default_irq_priority, .extern_irq = (1 << AT91SAM9G45_ID_IRQ0), .ioremap_registers = at91sam9g45_ioremap_registers, .register_clocks = at91sam9g45_register_clocks, + .register_devices = at91sam9g45_register_devices, .init = at91sam9g45_initialize, + .init_time = at91sam9g45_init_time, AT91_SOC_END diff --git a/arch/arm/mach-at91/at91sam9g45_reset.S b/arch/arm/mach-at91/at91sam9g45_reset.S deleted file mode 100644 index c40c1e2ef80f..000000000000 --- a/arch/arm/mach-at91/at91sam9g45_reset.S +++ /dev/null @@ -1,45 +0,0 @@ -/* - * reset AT91SAM9G45 as per errata - * - * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcosoft.com> - * - * unless the SDRAM is cleanly shutdown before we hit the - * reset register it can be left driving the data bus and - * killing the chance of a subsequent boot from NAND - * - * GPLv2 Only - */ - -#include <linux/linkage.h> -#include <mach/hardware.h> -#include <mach/at91_ramc.h> -#include "at91_rstc.h" - .arm - -/* - * at91_ramc_base is an array void* - * init at NULL if only one DDR controler is present in or DT - */ - .globl at91sam9g45_restart - -at91sam9g45_restart: - ldr r5, =at91_ramc_base @ preload constants - ldr r0, [r5] - ldr r5, [r5, #4] @ ddr1 - cmp r5, #0 - ldr r4, =at91_rstc_base - ldr r1, [r4] - - mov r2, #1 - mov r3, #AT91_DDRSDRC_LPCB_POWER_DOWN - ldr r4, =AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST - - .balign 32 @ align to cache line - - strne r2, [r5, #AT91_DDRSDRC_RTR] @ disable DDR1 access - strne r3, [r5, #AT91_DDRSDRC_LPR] @ power down DDR1 - str r2, [r0, #AT91_DDRSDRC_RTR] @ disable DDR0 access - str r3, [r0, #AT91_DDRSDRC_LPR] @ power down DDR0 - str r4, [r1, #AT91_RSTC_CR] @ reset processor - - b . diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c index 878d5015daab..f553e4ea034b 100644 --- a/arch/arm/mach-at91/at91sam9rl.c +++ b/arch/arm/mach-at91/at91sam9rl.c @@ -10,6 +10,7 @@ */ #include <linux/module.h> +#include <linux/platform_device.h> #include <linux/clk/at91_pmc.h> #include <asm/proc-fns.h> @@ -23,7 +24,6 @@ #include <mach/hardware.h> #include "at91_aic.h" -#include "at91_rstc.h" #include "soc.h" #include "generic.h" #include "sam9_smc.h" @@ -311,8 +311,6 @@ static void __init at91sam9rl_map_io(void) static void __init at91sam9rl_ioremap_registers(void) { - at91_ioremap_shdwc(AT91SAM9RL_BASE_SHDWC); - at91_ioremap_rstc(AT91SAM9RL_BASE_RSTC); at91_ioremap_ramc(0, AT91SAM9RL_BASE_SDRAMC, 512); at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT); at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC); @@ -323,7 +321,6 @@ static void __init at91sam9rl_ioremap_registers(void) static void __init at91sam9rl_initialize(void) { arm_pm_idle = at91sam9_idle; - arm_pm_restart = at91sam9_alt_restart; at91_sysirq_mask_rtc(AT91SAM9RL_BASE_RTC); at91_sysirq_mask_rtt(AT91SAM9RL_BASE_RTT); @@ -332,6 +329,45 @@ static void __init at91sam9rl_initialize(void) at91_gpio_init(at91sam9rl_gpio, 4); } +static struct resource rstc_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_RSTC, + .end = AT91SAM9RL_BASE_RSTC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_BASE_SDRAMC, + .end = AT91SAM9RL_BASE_SDRAMC + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device rstc_device = { + .name = "at91-sam9260-reset", + .resource = rstc_resources, + .num_resources = ARRAY_SIZE(rstc_resources), +}; + +static struct resource shdwc_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_SHDWC, + .end = AT91SAM9RL_BASE_SHDWC + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device shdwc_device = { + .name = "at91-poweroff", + .resource = shdwc_resources, + .num_resources = ARRAY_SIZE(shdwc_resources), +}; + +static void __init at91sam9rl_register_devices(void) +{ + platform_device_register(&rstc_device); + platform_device_register(&shdwc_device); +} + /* -------------------------------------------------------------------- * Interrupt initialization * -------------------------------------------------------------------- */ @@ -374,6 +410,11 @@ static unsigned int at91sam9rl_default_irq_priority[NR_AIC_IRQS] __initdata = { 0, /* Advanced Interrupt Controller */ }; +static void __init at91sam9rl_init_time(void) +{ + at91sam926x_pit_init(NR_IRQS_LEGACY + AT91_ID_SYS); +} + AT91_SOC_START(at91sam9rl) .map_io = at91sam9rl_map_io, .default_irq_priority = at91sam9rl_default_irq_priority, @@ -382,5 +423,7 @@ AT91_SOC_START(at91sam9rl) #if defined(CONFIG_OLD_CLK_AT91) .register_clocks = at91sam9rl_register_clocks, #endif + .register_devices = at91sam9rl_register_devices, .init = at91sam9rl_initialize, + .init_time = at91sam9rl_init_time, AT91_SOC_END diff --git a/arch/arm/mach-at91/board-afeb-9260v1.c b/arch/arm/mach-at91/board-afeb-9260v1.c index 597c649170aa..e76e35ce81e7 100644 --- a/arch/arm/mach-at91/board-afeb-9260v1.c +++ b/arch/arm/mach-at91/board-afeb-9260v1.c @@ -167,6 +167,8 @@ static struct at91_cf_data afeb9260_cf_data = { static void __init afeb9260_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -211,7 +213,7 @@ static void __init afeb9260_board_init(void) MACHINE_START(AFEB9260, "Custom afeb9260 board") /* Maintainer: Sergey Lapin <slapin@ossfans.org> */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = afeb9260_init_early, diff --git a/arch/arm/mach-at91/board-cam60.c b/arch/arm/mach-at91/board-cam60.c index a30502c8d379..ae827dd2d0d2 100644 --- a/arch/arm/mach-at91/board-cam60.c +++ b/arch/arm/mach-at91/board-cam60.c @@ -170,6 +170,8 @@ static void __init cam60_add_device_nand(void) static void __init cam60_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -188,7 +190,7 @@ static void __init cam60_board_init(void) MACHINE_START(CAM60, "KwikByte CAM60") /* Maintainer: KwikByte */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = cam60_init_early, diff --git a/arch/arm/mach-at91/board-cpu9krea.c b/arch/arm/mach-at91/board-cpu9krea.c index 2037f78c84e7..731c8318f4f5 100644 --- a/arch/arm/mach-at91/board-cpu9krea.c +++ b/arch/arm/mach-at91/board-cpu9krea.c @@ -322,6 +322,8 @@ static struct mci_platform_data __initdata cpu9krea_mci0_data = { static void __init cpu9krea_board_init(void) { + at91_register_devices(); + /* NOR */ cpu9krea_add_device_nor(); /* Serial */ @@ -375,7 +377,7 @@ MACHINE_START(CPUAT9260, "Eukrea CPU9260") MACHINE_START(CPUAT9G20, "Eukrea CPU9G20") #endif /* Maintainer: Eric Benard - EUKREA Electromatique */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = cpu9krea_init_early, diff --git a/arch/arm/mach-at91/board-dt-sam9.c b/arch/arm/mach-at91/board-dt-sam9.c index dfa8d48146fe..d3048ccdc41f 100644 --- a/arch/arm/mach-at91/board-dt-sam9.c +++ b/arch/arm/mach-at91/board-dt-sam9.c @@ -25,15 +25,6 @@ #include "board.h" #include "generic.h" - -static void __init sam9_dt_timer_init(void) -{ -#if defined(CONFIG_COMMON_CLK) - of_clk_init(NULL); -#endif - at91sam926x_pit_init(); -} - static const char *at91_dt_board_compat[] __initdata = { "atmel,at91sam9", NULL @@ -41,7 +32,6 @@ static const char *at91_dt_board_compat[] __initdata = { DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)") /* Maintainer: Atmel */ - .init_time = sam9_dt_timer_init, .map_io = at91_map_io, .init_early = at91_dt_initialize, .dt_compat = at91_dt_board_compat, diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c index 6a064e53f4d6..129e2917506b 100644 --- a/arch/arm/mach-at91/board-dt-sama5.c +++ b/arch/arm/mach-at91/board-dt-sama5.c @@ -27,14 +27,6 @@ #include "at91_aic.h" #include "generic.h" -static void __init sama5_dt_timer_init(void) -{ -#if defined(CONFIG_COMMON_CLK) - of_clk_init(NULL); -#endif - at91sam926x_pit_init(); -} - static void __init sama5_dt_device_init(void) { of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); @@ -47,7 +39,6 @@ static const char *sama5_dt_board_compat[] __initconst = { DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)") /* Maintainer: Atmel */ - .init_time = sama5_dt_timer_init, .map_io = at91_map_io, .init_early = at91_dt_initialize, .init_machine = sama5_dt_device_init, diff --git a/arch/arm/mach-at91/board-flexibity.c b/arch/arm/mach-at91/board-flexibity.c index 68f1ab6bd08f..a6aa4a2432f2 100644 --- a/arch/arm/mach-at91/board-flexibity.c +++ b/arch/arm/mach-at91/board-flexibity.c @@ -138,6 +138,8 @@ static struct gpio_led flexibity_leds[] = { static void __init flexibity_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -160,7 +162,7 @@ static void __init flexibity_board_init(void) MACHINE_START(FLEXIBITY, "Flexibity Connect") /* Maintainer: Maxim Osipov */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = flexibity_init_early, diff --git a/arch/arm/mach-at91/board-gsia18s.c b/arch/arm/mach-at91/board-gsia18s.c index b729dd1271bf..bf5cc55c7db6 100644 --- a/arch/arm/mach-at91/board-gsia18s.c +++ b/arch/arm/mach-at91/board-gsia18s.c @@ -576,7 +576,7 @@ static void __init gsia18s_board_init(void) } MACHINE_START(GSIA18S, "GS_IA18_S") - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = gsia18s_init_early, diff --git a/arch/arm/mach-at91/board-pcontrol-g20.c b/arch/arm/mach-at91/board-pcontrol-g20.c index b48d95ec5152..9c26b94ce448 100644 --- a/arch/arm/mach-at91/board-pcontrol-g20.c +++ b/arch/arm/mach-at91/board-pcontrol-g20.c @@ -219,7 +219,7 @@ static void __init pcontrol_g20_board_init(void) MACHINE_START(PCONTROL_G20, "PControl G20") /* Maintainer: pgsellmann@portner-elektronik.at */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = pcontrol_g20_init_early, diff --git a/arch/arm/mach-at91/board-sam9-l9260.c b/arch/arm/mach-at91/board-sam9-l9260.c index d24dda67e2d3..c2166e3a236c 100644 --- a/arch/arm/mach-at91/board-sam9-l9260.c +++ b/arch/arm/mach-at91/board-sam9-l9260.c @@ -187,6 +187,8 @@ static struct gpio_led ek_leds[] = { static void __init ek_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -219,7 +221,7 @@ static void __init ek_board_init(void) MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260") /* Maintainer: Olimex */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c index 65dea12d685e..bf8a946b4cd0 100644 --- a/arch/arm/mach-at91/board-sam9260ek.c +++ b/arch/arm/mach-at91/board-sam9260ek.c @@ -45,7 +45,6 @@ #include <mach/system_rev.h> #include "at91_aic.h" -#include "at91_shdwc.h" #include "board.h" #include "sam9_smc.h" #include "generic.h" @@ -307,6 +306,8 @@ static void __init ek_add_device_buttons(void) {} static void __init ek_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -344,7 +345,7 @@ static void __init ek_board_init(void) MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index 4637432de08f..e85ada820bfb 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -49,7 +49,6 @@ #include <mach/system_rev.h> #include "at91_aic.h" -#include "at91_shdwc.h" #include "board.h" #include "sam9_smc.h" #include "generic.h" @@ -561,6 +560,8 @@ static struct gpio_led ek_leds[] = { static void __init ek_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -603,7 +604,7 @@ static void __init ek_board_init(void) MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, @@ -613,7 +614,7 @@ MACHINE_END MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index fc446097f410..d76680f2a209 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -50,7 +50,6 @@ #include <mach/system_rev.h> #include "at91_aic.h" -#include "at91_shdwc.h" #include "board.h" #include "sam9_smc.h" #include "generic.h" @@ -439,6 +438,8 @@ static struct platform_device *devices[] __initdata = { static void __init ek_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -483,7 +484,7 @@ static void __init ek_board_init(void) MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c index e1be6e25b380..49f075213451 100644 --- a/arch/arm/mach-at91/board-sam9g20ek.c +++ b/arch/arm/mach-at91/board-sam9g20ek.c @@ -410,7 +410,7 @@ static void __init ek_board_init(void) MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, @@ -420,7 +420,7 @@ MACHINE_END MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c index b227732b0c83..a517c7f7af92 100644 --- a/arch/arm/mach-at91/board-sam9m10g45ek.c +++ b/arch/arm/mach-at91/board-sam9m10g45ek.c @@ -48,7 +48,6 @@ #include <mach/system_rev.h> #include "at91_aic.h" -#include "at91_shdwc.h" #include "board.h" #include "sam9_smc.h" #include "generic.h" @@ -471,6 +470,8 @@ static struct platform_device *devices[] __initdata = { static void __init ek_board_init(void) { + at91_register_devices(); + /* Serial */ /* DGBU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -517,7 +518,7 @@ static void __init ek_board_init(void) MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c index b64648b4a1fc..8bca329b0293 100644 --- a/arch/arm/mach-at91/board-sam9rlek.c +++ b/arch/arm/mach-at91/board-sam9rlek.c @@ -35,7 +35,6 @@ #include "at91_aic.h" -#include "at91_shdwc.h" #include "board.h" #include "sam9_smc.h" #include "generic.h" @@ -292,6 +291,8 @@ static void __init ek_add_device_buttons(void) {} static void __init ek_board_init(void) { + at91_register_devices(); + /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); @@ -323,7 +324,7 @@ static void __init ek_board_init(void) MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK") /* Maintainer: Atmel */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, diff --git a/arch/arm/mach-at91/board-snapper9260.c b/arch/arm/mach-at91/board-snapper9260.c index 1b870e6def0c..b4aff840a1a0 100644 --- a/arch/arm/mach-at91/board-snapper9260.c +++ b/arch/arm/mach-at91/board-snapper9260.c @@ -154,6 +154,8 @@ static void __init snapper9260_add_device_nand(void) static void __init snapper9260_board_init(void) { + at91_register_devices(); + at91_add_device_i2c(snapper9260_i2c_devices, ARRAY_SIZE(snapper9260_i2c_devices)); @@ -178,7 +180,7 @@ static void __init snapper9260_board_init(void) } MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module") - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = snapper9260_init_early, diff --git a/arch/arm/mach-at91/board-stamp9g20.c b/arch/arm/mach-at91/board-stamp9g20.c index 3b575036ff96..e825641a1dee 100644 --- a/arch/arm/mach-at91/board-stamp9g20.c +++ b/arch/arm/mach-at91/board-stamp9g20.c @@ -275,7 +275,7 @@ static void __init stamp9g20evb_board_init(void) MACHINE_START(PORTUXG20, "taskit PortuxG20") /* Maintainer: taskit GmbH */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = stamp9g20_init_early, @@ -285,7 +285,7 @@ MACHINE_END MACHINE_START(STAMP9G20, "taskit Stamp9G20") /* Maintainer: taskit GmbH */ - .init_time = at91sam926x_pit_init, + .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = stamp9g20_init_early, diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index cddf1e51c50e..81959cf4a137 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -8,6 +8,9 @@ * published by the Free Software Foundation. */ +#ifndef _AT91_GENERIC_H +#define _AT91_GENERIC_H + #include <linux/clkdev.h> #include <linux/of.h> #include <linux/reboot.h> @@ -38,12 +41,15 @@ extern int __init at91_aic5_of_init(struct device_node *node, extern void __init at91_sysirq_mask_rtc(u32 rtc_base); extern void __init at91_sysirq_mask_rtt(u32 rtt_base); + /* Devices */ +extern void __init at91_register_devices(void); /* Timer */ +extern void __init at91_init_time(void); extern void at91rm9200_ioremap_st(u32 addr); extern void at91rm9200_timer_init(void); extern void at91sam926x_ioremap_pit(u32 addr); -extern void at91sam926x_pit_init(void); +extern void at91sam926x_pit_init(int irq); extern void at91x40_timer_init(void); /* Clocks */ @@ -63,14 +69,6 @@ extern void at91_irq_resume(void); /* idle */ extern void at91sam9_idle(void); -/* reset */ -extern void at91_ioremap_rstc(u32 base_addr); -extern void at91sam9_alt_restart(enum reboot_mode, const char *); -extern void at91sam9g45_restart(enum reboot_mode, const char *); - -/* shutdown */ -extern void at91_ioremap_shdwc(u32 base_addr); - /* Matrix */ extern void at91_ioremap_matrix(u32 base_addr); @@ -91,3 +89,5 @@ extern int __init at91_gpio_of_irq_setup(struct device_node *node, struct device_node *parent); extern u32 at91_get_extern_irq(void); + +#endif /* _AT91_GENERIC_H */ diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 5920373809c5..4073ab7f38f3 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -34,79 +34,8 @@ #include "pm.h" #include "gpio.h" -/* - * Show the reason for the previous system reset. - */ - -#include "at91_rstc.h" -#include "at91_shdwc.h" - static void (*at91_pm_standby)(void); -static void __init show_reset_status(void) -{ - static char reset[] __initdata = "reset"; - - static char general[] __initdata = "general"; - static char wakeup[] __initdata = "wakeup"; - static char watchdog[] __initdata = "watchdog"; - static char software[] __initdata = "software"; - static char user[] __initdata = "user"; - static char unknown[] __initdata = "unknown"; - - static char signal[] __initdata = "signal"; - static char rtc[] __initdata = "rtc"; - static char rtt[] __initdata = "rtt"; - static char restore[] __initdata = "power-restored"; - - char *reason, *r2 = reset; - u32 reset_type, wake_type; - - if (!at91_shdwc_base || !at91_rstc_base) - return; - - reset_type = at91_rstc_read(AT91_RSTC_SR) & AT91_RSTC_RSTTYP; - wake_type = at91_shdwc_read(AT91_SHDW_SR); - - switch (reset_type) { - case AT91_RSTC_RSTTYP_GENERAL: - reason = general; - break; - case AT91_RSTC_RSTTYP_WAKEUP: - /* board-specific code enabled the wakeup sources */ - reason = wakeup; - - /* "wakeup signal" */ - if (wake_type & AT91_SHDW_WAKEUP0) - r2 = signal; - else { - r2 = reason; - if (wake_type & AT91_SHDW_RTTWK) /* rtt wakeup */ - reason = rtt; - else if (wake_type & AT91_SHDW_RTCWK) /* rtc wakeup */ - reason = rtc; - else if (wake_type == 0) /* power-restored wakeup */ - reason = restore; - else /* unknown wakeup */ - reason = unknown; - } - break; - case AT91_RSTC_RSTTYP_WATCHDOG: - reason = watchdog; - break; - case AT91_RSTC_RSTTYP_SOFTWARE: - reason = software; - break; - case AT91_RSTC_RSTTYP_USER: - reason = user; - break; - default: - reason = unknown; - break; - } - pr_info("AT91: Starting after %s %s\n", reason, r2); -} - static int at91_pm_valid_state(suspend_state_t state) { switch (state) { @@ -346,7 +275,6 @@ static int __init at91_pm_init(void) suspend_set_ops(&at91_pm_ops); - show_reset_status(); return 0; } arch_initcall(at91_pm_init); diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index ebe7fdca9e83..961079250b83 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -5,6 +5,8 @@ * Under GPLv2 */ +#define pr_fmt(fmt) "AT91: " fmt + #include <linux/module.h> #include <linux/io.h> #include <linux/mm.h> @@ -20,7 +22,6 @@ #include <mach/cpu.h> #include <mach/at91_dbgu.h> -#include "at91_shdwc.h" #include "soc.h" #include "generic.h" #include "pm.h" @@ -37,7 +38,7 @@ void __init at91rm9200_set_type(int type) else at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA; - pr_info("AT91: filled in soc subtype: %s\n", + pr_info("filled in soc subtype: %s\n", at91_get_soc_subtype(&at91_soc_initdata)); } @@ -67,7 +68,7 @@ void __init at91_ioremap_ramc(int id, u32 addr, u32 size) } at91_ramc_base[id] = ioremap(addr, size); if (!at91_ramc_base[id]) - panic("Impossible to ioremap ramc.%d 0x%x\n", id, addr); + panic(pr_fmt("Impossible to ioremap ramc.%d 0x%x\n"), id, addr); } static struct map_desc sram_desc[2] __initdata; @@ -84,7 +85,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length) desc->length = length; desc->type = MT_MEMORY_RWX_NONCACHED; - pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n", + pr_info("sram at 0x%lx of 0x%x mapped at 0x%lx\n", base, length, desc->virtual); iotable_init(desc, 1); @@ -367,45 +368,21 @@ void __init at91_map_io(void) soc_detect(AT91_BASE_DBGU1); if (!at91_soc_is_detected()) - panic("AT91: Impossible to detect the SOC type"); + panic(pr_fmt("Impossible to detect the SOC type")); - pr_info("AT91: Detected soc type: %s\n", + pr_info("Detected soc type: %s\n", at91_get_soc_type(&at91_soc_initdata)); if (at91_soc_initdata.subtype != AT91_SOC_SUBTYPE_NONE) - pr_info("AT91: Detected soc subtype: %s\n", + pr_info("Detected soc subtype: %s\n", at91_get_soc_subtype(&at91_soc_initdata)); if (!at91_soc_is_enabled()) - panic("AT91: Soc not enabled"); + panic(pr_fmt("Soc not enabled")); if (at91_boot_soc.map_io) at91_boot_soc.map_io(); } -void __iomem *at91_shdwc_base = NULL; - -static void at91sam9_poweroff(void) -{ - at91_shdwc_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW); -} - -void __init at91_ioremap_shdwc(u32 base_addr) -{ - at91_shdwc_base = ioremap(base_addr, 16); - if (!at91_shdwc_base) - panic("Impossible to ioremap at91_shdwc_base\n"); - pm_power_off = at91sam9_poweroff; -} - -void __iomem *at91_rstc_base; - -void __init at91_ioremap_rstc(u32 base_addr) -{ - at91_rstc_base = ioremap(base_addr, 16); - if (!at91_rstc_base) - panic("Impossible to ioremap at91_rstc_base\n"); -} - void __init at91_alt_map_io(void) { /* Map peripherals */ @@ -438,42 +415,15 @@ void __init at91_ioremap_matrix(u32 base_addr) { at91_matrix_base = ioremap(base_addr, 512); if (!at91_matrix_base) - panic("Impossible to ioremap at91_matrix_base\n"); + panic(pr_fmt("Impossible to ioremap at91_matrix_base\n")); } #if defined(CONFIG_OF) && !defined(CONFIG_ARCH_AT91X40) -static struct of_device_id rstc_ids[] = { - { .compatible = "atmel,at91sam9260-rstc", .data = at91sam9_alt_restart }, - { .compatible = "atmel,at91sam9g45-rstc", .data = at91sam9g45_restart }, - { /*sentinel*/ } -}; - -static void at91_dt_rstc(void) -{ - struct device_node *np; - const struct of_device_id *of_id; - - np = of_find_matching_node(NULL, rstc_ids); - if (!np) - panic("unable to find compatible rstc node in dtb\n"); - - at91_rstc_base = of_iomap(np, 0); - if (!at91_rstc_base) - panic("unable to map rstc cpu registers\n"); - - of_id = of_match_node(rstc_ids, np); - if (!of_id) - panic("AT91: rtsc no restart function available\n"); - - arm_pm_restart = of_id->data; - - of_node_put(np); -} - static struct of_device_id ramc_ids[] = { { .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby }, { .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby }, { .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby }, + { .compatible = "atmel,sama5d3-ddramc", .data = at91_ddr_standby }, { /*sentinel*/ } }; @@ -481,100 +431,29 @@ static void at91_dt_ramc(void) { struct device_node *np; const struct of_device_id *of_id; + int idx = 0; + const void *standby = NULL; - np = of_find_matching_node(NULL, ramc_ids); - if (!np) - panic("unable to find compatible ram controller node in dtb\n"); - - at91_ramc_base[0] = of_iomap(np, 0); - if (!at91_ramc_base[0]) - panic("unable to map ramc[0] cpu registers\n"); - /* the controller may have 2 banks */ - at91_ramc_base[1] = of_iomap(np, 1); - - of_id = of_match_node(ramc_ids, np); - if (!of_id) - pr_warn("AT91: ramc no standby function available\n"); - else - at91_pm_set_standby(of_id->data); - - of_node_put(np); -} - -static struct of_device_id shdwc_ids[] = { - { .compatible = "atmel,at91sam9260-shdwc", }, - { .compatible = "atmel,at91sam9rl-shdwc", }, - { .compatible = "atmel,at91sam9x5-shdwc", }, - { /*sentinel*/ } -}; - -static const char *shdwc_wakeup_modes[] = { - [AT91_SHDW_WKMODE0_NONE] = "none", - [AT91_SHDW_WKMODE0_HIGH] = "high", - [AT91_SHDW_WKMODE0_LOW] = "low", - [AT91_SHDW_WKMODE0_ANYLEVEL] = "any", -}; + for_each_matching_node_and_match(np, ramc_ids, &of_id) { + at91_ramc_base[idx] = of_iomap(np, 0); + if (!at91_ramc_base[idx]) + panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx); -const int at91_dtget_shdwc_wakeup_mode(struct device_node *np) -{ - const char *pm; - int err, i; - - err = of_property_read_string(np, "atmel,wakeup-mode", &pm); - if (err < 0) - return AT91_SHDW_WKMODE0_ANYLEVEL; - - for (i = 0; i < ARRAY_SIZE(shdwc_wakeup_modes); i++) - if (!strcasecmp(pm, shdwc_wakeup_modes[i])) - return i; - - return -ENODEV; -} - -static void at91_dt_shdwc(void) -{ - struct device_node *np; - int wakeup_mode; - u32 reg; - u32 mode = 0; + if (!standby) + standby = of_id->data; - np = of_find_matching_node(NULL, shdwc_ids); - if (!np) { - pr_debug("AT91: unable to find compatible shutdown (shdwc) controller node in dtb\n"); - return; + idx++; } - at91_shdwc_base = of_iomap(np, 0); - if (!at91_shdwc_base) - panic("AT91: unable to map shdwc cpu registers\n"); - - wakeup_mode = at91_dtget_shdwc_wakeup_mode(np); - if (wakeup_mode < 0) { - pr_warn("AT91: shdwc unknown wakeup mode\n"); - goto end; - } + if (!idx) + panic(pr_fmt("unable to find compatible ram controller node in dtb\n")); - if (!of_property_read_u32(np, "atmel,wakeup-counter", ®)) { - if (reg > AT91_SHDW_CPTWK0_MAX) { - pr_warn("AT91: shdwc wakeup counter 0x%x > 0x%x reduce it to 0x%x\n", - reg, AT91_SHDW_CPTWK0_MAX, AT91_SHDW_CPTWK0_MAX); - reg = AT91_SHDW_CPTWK0_MAX; - } - mode |= AT91_SHDW_CPTWK0_(reg); + if (!standby) { + pr_warn("ramc no standby function available\n"); + return; } - if (of_property_read_bool(np, "atmel,wakeup-rtc-timer")) - mode |= AT91_SHDW_RTCWKEN; - - if (of_property_read_bool(np, "atmel,wakeup-rtt-timer")) - mode |= AT91_SHDW_RTTWKEN; - - at91_shdwc_write(AT91_SHDW_MR, wakeup_mode | mode); - -end: - pm_power_off = at91sam9_poweroff; - - of_node_put(np); + at91_pm_set_standby(standby); } void __init at91rm9200_dt_initialize(void) @@ -593,9 +472,7 @@ void __init at91rm9200_dt_initialize(void) void __init at91_dt_initialize(void) { - at91_dt_rstc(); at91_dt_ramc(); - at91_dt_shdwc(); /* Init clock subsystem */ at91_dt_clock_init(); @@ -623,3 +500,13 @@ void __init at91_initialize(unsigned long main_clock) pinctrl_provide_dummies(); } + +void __init at91_register_devices(void) +{ + at91_boot_soc.register_devices(); +} + +void __init at91_init_time(void) +{ + at91_boot_soc.init_time(); +} diff --git a/arch/arm/mach-at91/soc.h b/arch/arm/mach-at91/soc.h index 8ecaee67f953..9a8fd97a8bef 100644 --- a/arch/arm/mach-at91/soc.h +++ b/arch/arm/mach-at91/soc.h @@ -11,7 +11,9 @@ struct at91_init_soc { void (*map_io)(void); void (*ioremap_registers)(void); void (*register_clocks)(void); + void (*register_devices)(void); void (*init)(void); + void (*init_time)(void); }; extern struct at91_init_soc at91_boot_soc; |
