diff options
Diffstat (limited to 'arch/arm/mach-at91/at91rm9200.c')
| -rw-r--r-- | arch/arm/mach-at91/at91rm9200.c | 91 |
1 files changed, 56 insertions, 35 deletions
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c index 99c3174e24a..787bb50a4df 100644 --- a/arch/arm/mach-at91/at91rm9200.c +++ b/arch/arm/mach-at91/at91rm9200.c @@ -11,28 +11,24 @@ */ #include <linux/module.h> +#include <linux/reboot.h> +#include <linux/clk/at91_pmc.h> #include <asm/irq.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <asm/system_misc.h> #include <mach/at91rm9200.h> -#include <mach/at91_pmc.h> #include <mach/at91_st.h> #include <mach/cpu.h> +#include <mach/hardware.h> +#include "at91_aic.h" #include "soc.h" #include "generic.h" #include "clock.h" #include "sam9_smc.h" - -static struct map_desc at91rm9200_io_desc[] __initdata = { - { - .virtual = AT91_VA_BASE_EMAC, - .pfn = __phys_to_pfn(AT91RM9200_BASE_EMAC), - .length = SZ_16K, - .type = MT_DEVICE, - }, -}; +#include "pm.h" /* -------------------------------------------------------------------- * Clocks @@ -191,15 +187,40 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk), CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk), CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk), - CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk), - CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk), - CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk), + CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk), + CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk), + CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.2", &ssc2_clk), + CLKDEV_CON_DEV_ID("pclk", "fffd0000.ssc", &ssc0_clk), + CLKDEV_CON_DEV_ID("pclk", "fffd4000.ssc", &ssc1_clk), + CLKDEV_CON_DEV_ID("pclk", "fffd8000.ssc", &ssc2_clk), + CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk), /* fake hclk clock */ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk), CLKDEV_CON_ID("pioA", &pioA_clk), CLKDEV_CON_ID("pioB", &pioB_clk), CLKDEV_CON_ID("pioC", &pioC_clk), CLKDEV_CON_ID("pioD", &pioD_clk), + /* usart lookup table for DT entries */ + CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck), + CLKDEV_CON_DEV_ID("usart", "fffc0000.serial", &usart0_clk), + CLKDEV_CON_DEV_ID("usart", "fffc4000.serial", &usart1_clk), + CLKDEV_CON_DEV_ID("usart", "fffc8000.serial", &usart2_clk), + CLKDEV_CON_DEV_ID("usart", "fffcc000.serial", &usart3_clk), + /* tc lookup table for DT entries */ + CLKDEV_CON_DEV_ID("t0_clk", "fffa0000.timer", &tc0_clk), + CLKDEV_CON_DEV_ID("t1_clk", "fffa0000.timer", &tc1_clk), + CLKDEV_CON_DEV_ID("t2_clk", "fffa0000.timer", &tc2_clk), + CLKDEV_CON_DEV_ID("t0_clk", "fffa4000.timer", &tc3_clk), + CLKDEV_CON_DEV_ID("t1_clk", "fffa4000.timer", &tc4_clk), + CLKDEV_CON_DEV_ID("t2_clk", "fffa4000.timer", &tc5_clk), + CLKDEV_CON_DEV_ID("mci_clk", "fffb4000.mmc", &mmc_clk), + CLKDEV_CON_DEV_ID("emac_clk", "fffbc000.ethernet", ðer_clk), + CLKDEV_CON_DEV_ID(NULL, "fffb8000.i2c", &twi_clk), + CLKDEV_CON_DEV_ID("hclk", "300000.ohci", &ohci_clk), + CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk), + CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk), + CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_clk), + CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioD_clk), }; static struct clk_lookup usart_clocks_lookups[] = { @@ -257,18 +278,6 @@ static void __init at91rm9200_register_clocks(void) clk_register(&pck3); } -static struct clk_lookup console_clock_lookup; - -void __init at91rm9200_set_console_clock(int id) -{ - if (id >= ARRAY_SIZE(usart_clocks_lookups)) - return; - - console_clock_lookup.con_id = "usart"; - console_clock_lookup.clk = usart_clocks_lookups[id].clk; - clkdev_add(&console_clock_lookup); -} - /* -------------------------------------------------------------------- * GPIO * -------------------------------------------------------------------- */ @@ -289,13 +298,22 @@ static struct at91_gpio_bank at91rm9200_gpio[] __initdata = { } }; -static void at91rm9200_restart(char mode, const char *cmd) +static void at91rm9200_idle(void) +{ + /* + * Disable the processor clock. The processor will be automatically + * re-enabled by an interrupt or by a reset. + */ + at91_pmc_write(AT91_PMC_SCDR, AT91_PMC_PCK); +} + +static void at91rm9200_restart(enum reboot_mode reboot_mode, const char *cmd) { /* * Perform a hardware reset with the use of the Watchdog timer. */ - at91_sys_write(AT91_ST_WDMR, AT91_ST_RSTEN | AT91_ST_EXTEN | 1); - at91_sys_write(AT91_ST_CR, AT91_ST_WDRST); + at91_st_write(AT91_ST_WDMR, AT91_ST_RSTEN | AT91_ST_EXTEN | 1); + at91_st_write(AT91_ST_CR, AT91_ST_WDRST); } /* -------------------------------------------------------------------- @@ -305,20 +323,19 @@ static void __init at91rm9200_map_io(void) { /* Map peripherals */ at91_init_sram(0, AT91RM9200_SRAM_BASE, AT91RM9200_SRAM_SIZE); - iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc)); } static void __init at91rm9200_ioremap_registers(void) { + at91rm9200_ioremap_st(AT91RM9200_BASE_ST); + at91_ioremap_ramc(0, AT91RM9200_BASE_MC, 256); + at91_pm_set_standby(at91rm9200_standby); } static void __init at91rm9200_initialize(void) { + arm_pm_idle = at91rm9200_idle; arm_pm_restart = at91rm9200_restart; - at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1) - | (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3) - | (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5) - | (1 << AT91RM9200_ID_IRQ6); /* Initialize GPIO subsystem */ at91_gpio_init(at91rm9200_gpio, @@ -368,10 +385,14 @@ static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = { 0 /* Advanced Interrupt Controller (IRQ6) */ }; -struct at91_init_soc __initdata at91rm9200_soc = { +AT91_SOC_START(at91rm9200) .map_io = at91rm9200_map_io, .default_irq_priority = at91rm9200_default_irq_priority, + .extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1) + | (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3) + | (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5) + | (1 << AT91RM9200_ID_IRQ6), .ioremap_registers = at91rm9200_ioremap_registers, .register_clocks = at91rm9200_register_clocks, .init = at91rm9200_initialize, -}; +AT91_SOC_END |