X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Farm%2Fmach-at91rm9200%2Fdevices.c;h=1cf85d231baa92afd6951b1d64d0f0ed34df01dc;hp=57eedd5beaf6412c1b152843babf7536ee4c8486;hb=fffcb480e4224f25c965b93fa65541bfc7dd732e;hpb=409761bb6a06bd61e2d8e27a1af534371d9537ed diff --git a/arch/arm/mach-at91rm9200/devices.c b/arch/arm/mach-at91rm9200/devices.c index 57eedd5beaf6..1cf85d231baa 100644 --- a/arch/arm/mach-at91rm9200/devices.c +++ b/arch/arm/mach-at91rm9200/devices.c @@ -16,9 +16,15 @@ #include #include +#include #include -#include +#include +#include "generic.h" + +#define SZ_512 0x00000200 +#define SZ_256 0x00000100 +#define SZ_16 0x00000010 /* -------------------------------------------------------------------- * USB Host @@ -28,10 +34,10 @@ static u64 ohci_dmamask = 0xffffffffUL; static struct at91_usbh_data usbh_data; -static struct resource at91rm9200_usbh_resource[] = { +static struct resource at91_usbh_resources[] = { [0] = { .start = AT91_UHP_BASE, - .end = AT91_UHP_BASE + SZ_1M -1, + .end = AT91_UHP_BASE + SZ_1M - 1, .flags = IORESOURCE_MEM, }, [1] = { @@ -42,15 +48,15 @@ static struct resource at91rm9200_usbh_resource[] = { }; static struct platform_device at91rm9200_usbh_device = { - .name = "at91rm9200-ohci", + .name = "at91_ohci", .id = -1, .dev = { .dma_mask = &ohci_dmamask, .coherent_dma_mask = 0xffffffff, .platform_data = &usbh_data, }, - .resource = at91rm9200_usbh_resource, - .num_resources = ARRAY_SIZE(at91rm9200_usbh_resource), + .resource = at91_usbh_resources, + .num_resources = ARRAY_SIZE(at91_usbh_resources), }; void __init at91_add_device_usbh(struct at91_usbh_data *data) @@ -74,11 +80,16 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {} static struct at91_udc_data udc_data; static struct resource at91_udc_resources[] = { - { + [0] = { .start = AT91_BASE_UDP, .end = AT91_BASE_UDP + SZ_16K - 1, .flags = IORESOURCE_MEM, - } + }, + [1] = { + .start = AT91_ID_UDP, + .end = AT91_ID_UDP, + .flags = IORESOURCE_IRQ, + }, }; static struct platform_device at91rm9200_udc_device = { @@ -100,10 +111,8 @@ void __init at91_add_device_udc(struct at91_udc_data *data) at91_set_gpio_input(data->vbus_pin, 0); at91_set_deglitch(data->vbus_pin, 1); } - if (data->pullup_pin) { + if (data->pullup_pin) at91_set_gpio_output(data->pullup_pin, 0); - at91_set_multi_drive(data->pullup_pin, 1); - } udc_data = *data; platform_device_register(&at91rm9200_udc_device); @@ -121,6 +130,19 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {} static u64 eth_dmamask = 0xffffffffUL; static struct at91_eth_data eth_data; +static struct resource at91_eth_resources[] = { + [0] = { + .start = AT91_BASE_EMAC, + .end = AT91_BASE_EMAC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_EMAC, + .end = AT91_ID_EMAC, + .flags = IORESOURCE_IRQ, + }, +}; + static struct platform_device at91rm9200_eth_device = { .name = "at91_ether", .id = -1, @@ -129,7 +151,8 @@ static struct platform_device at91rm9200_eth_device = { .coherent_dma_mask = 0xffffffff, .platform_data = ð_data, }, - .num_resources = 0, + .resource = at91_eth_resources, + .num_resources = ARRAY_SIZE(at91_eth_resources), }; void __init at91_add_device_eth(struct at91_eth_data *data) @@ -180,13 +203,23 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {} #if defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE) static struct at91_cf_data cf_data; +static struct resource at91_cf_resources[] = { + [0] = { + .start = AT91_CF_BASE, + /* ties up CS4, CS5 and CS6 */ + .end = AT91_CF_BASE + (0x30000000 - 1), + .flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT, + }, +}; + static struct platform_device at91rm9200_cf_device = { .name = "at91_cf", .id = -1, .dev = { .platform_data = &cf_data, }, - .num_resources = 0, + .resource = at91_cf_resources, + .num_resources = ARRAY_SIZE(at91_cf_resources), }; void __init at91_add_device_cf(struct at91_cf_data *data) @@ -207,6 +240,12 @@ void __init at91_add_device_cf(struct at91_cf_data *data) at91_set_gpio_output(data->vcc_pin, 0); at91_set_gpio_output(data->rst_pin, 0); + /* force poweron defaults for these pins ... */ + at91_set_A_periph(AT91_PIN_PC9, 0); /* A25/CFRNW */ + at91_set_A_periph(AT91_PIN_PC10, 0); /* NCS4/CFCS */ + at91_set_A_periph(AT91_PIN_PC11, 0); /* NCS5/CFCE1 */ + at91_set_A_periph(AT91_PIN_PC12, 0); /* NCS6/CFCE2 */ + cf_data = *data; platform_device_register(&at91rm9200_cf_device); } @@ -224,15 +263,20 @@ static u64 mmc_dmamask = 0xffffffffUL; static struct at91_mmc_data mmc_data; static struct resource at91_mmc_resources[] = { - { + [0] = { .start = AT91_BASE_MCI, .end = AT91_BASE_MCI + SZ_16K - 1, .flags = IORESOURCE_MEM, - } + }, + [1] = { + .start = AT91_ID_MCI, + .end = AT91_ID_MCI, + .flags = IORESOURCE_IRQ, + }, }; static struct platform_device at91rm9200_mmc_device = { - .name = "at91rm9200_mci", + .name = "at91_mci", .id = -1, .dev = { .dma_mask = &mmc_dmamask, @@ -290,4 +334,480 @@ void __init at91_add_device_mmc(struct at91_mmc_data *data) void __init at91_add_device_mmc(struct at91_mmc_data *data) {} #endif + +/* -------------------------------------------------------------------- + * NAND / SmartMedia + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) +static struct at91_nand_data nand_data; + +static struct resource at91_nand_resources[] = { + { + .start = AT91_SMARTMEDIA_BASE, + .end = AT91_SMARTMEDIA_BASE + SZ_8M - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91_nand_device = { + .name = "at91_nand", + .id = -1, + .dev = { + .platform_data = &nand_data, + }, + .resource = at91_nand_resources, + .num_resources = ARRAY_SIZE(at91_nand_resources), +}; + +void __init at91_add_device_nand(struct at91_nand_data *data) +{ + if (!data) + return; + + /* enable pin */ + if (data->enable_pin) + at91_set_gpio_output(data->enable_pin, 1); + + /* ready/busy pin */ + if (data->rdy_pin) + at91_set_gpio_input(data->rdy_pin, 1); + + /* card detect pin */ + if (data->det_pin) + at91_set_gpio_input(data->det_pin, 1); + + at91_set_A_periph(AT91_PIN_PC1, 0); /* SMOE */ + at91_set_A_periph(AT91_PIN_PC3, 0); /* SMWE */ + + nand_data = *data; + platform_device_register(&at91_nand_device); +} +#else +void __init at91_add_device_nand(struct at91_nand_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * TWI (i2c) + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +static struct platform_device at91rm9200_twi_device = { + .name = "at91_i2c", + .id = -1, + .num_resources = 0, +}; + +void __init at91_add_device_i2c(void) +{ + /* pins used for TWI interface */ + at91_set_A_periph(AT91_PIN_PA25, 0); /* TWD */ + at91_set_multi_drive(AT91_PIN_PA25, 1); + + at91_set_A_periph(AT91_PIN_PA26, 0); /* TWCK */ + at91_set_multi_drive(AT91_PIN_PA26, 1); + + platform_device_register(&at91rm9200_twi_device); +} +#else +void __init at91_add_device_i2c(void) {} +#endif + + +/* -------------------------------------------------------------------- + * SPI + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SPI_AT91) || defined(CONFIG_SPI_AT91_MODULE) || defined(CONFIG_AT91_SPI) || defined(CONFIG_AT91_SPI_MODULE) +static u64 spi_dmamask = 0xffffffffUL; + +static struct resource at91_spi_resources[] = { + [0] = { + .start = AT91_BASE_SPI, + .end = AT91_BASE_SPI + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_SPI, + .end = AT91_ID_SPI, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_spi_device = { + .name = "at91_spi", + .id = 0, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = 0xffffffff, + }, + .resource = at91_spi_resources, + .num_resources = ARRAY_SIZE(at91_spi_resources), +}; + +static const unsigned at91_spi_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 }; + +void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) +{ + int i; + unsigned long cs_pin; + + at91_set_A_periph(AT91_PIN_PA0, 0); /* MISO */ + at91_set_A_periph(AT91_PIN_PA1, 0); /* MOSI */ + at91_set_A_periph(AT91_PIN_PA2, 0); /* SPCK */ + + /* Enable SPI chip-selects */ + for (i = 0; i < nr_devices; i++) { + if (devices[i].controller_data) + cs_pin = (unsigned long) devices[i].controller_data; + else + cs_pin = at91_spi_standard_cs[devices[i].chip_select]; + +#ifdef CONFIG_SPI_AT91_MANUAL_CS + at91_set_gpio_output(cs_pin, 1); +#else + at91_set_A_periph(cs_pin, 0); +#endif + + /* pass chip-select pin to driver */ + devices[i].controller_data = (void *) cs_pin; + } + + spi_register_board_info(devices, nr_devices); + at91_clock_associate("spi0_clk", &at91rm9200_spi_device.dev, "spi"); + platform_device_register(&at91rm9200_spi_device); +} +#else +void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {} +#endif + + +/* -------------------------------------------------------------------- + * RTC + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_RTC_DRV_AT91) || defined(CONFIG_RTC_DRV_AT91_MODULE) +static struct platform_device at91rm9200_rtc_device = { + .name = "at91_rtc", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_rtc(void) +{ + platform_device_register(&at91rm9200_rtc_device); +} +#else +static void __init at91_add_device_rtc(void) {} +#endif + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91_WATCHDOG) || defined(CONFIG_AT91_WATCHDOG_MODULE) +static struct platform_device at91rm9200_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91rm9200_wdt_device); +} +#else +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * LEDs + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_LEDS) +u8 at91_leds_cpu; +u8 at91_leds_timer; + +void __init at91_init_leds(u8 cpu_led, u8 timer_led) +{ + at91_leds_cpu = cpu_led; + at91_leds_timer = timer_led; +} +#else +void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +#endif + + +/* -------------------------------------------------------------------- + * UART + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SERIAL_AT91) +static struct resource dbgu_resources[] = { + [0] = { + .start = AT91_VA_BASE_SYS + AT91_DBGU, + .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_SYS, + .end = AT91_ID_SYS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct at91_uart_data dbgu_data = { + .use_dma_tx = 0, + .use_dma_rx = 0, /* DBGU not capable of receive DMA */ +}; + +static struct platform_device at91rm9200_dbgu_device = { + .name = "at91_usart", + .id = 0, + .dev = { + .platform_data = &dbgu_data, + .coherent_dma_mask = 0xffffffff, + }, + .resource = dbgu_resources, + .num_resources = ARRAY_SIZE(dbgu_resources), +}; + +static inline void configure_dbgu_pins(void) +{ + at91_set_A_periph(AT91_PIN_PA30, 0); /* DRXD */ + at91_set_A_periph(AT91_PIN_PA31, 1); /* DTXD */ +} + +static struct resource uart0_resources[] = { + [0] = { + .start = AT91_BASE_US0, + .end = AT91_BASE_US0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_US0, + .end = AT91_ID_US0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct at91_uart_data uart0_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static struct platform_device at91rm9200_uart0_device = { + .name = "at91_usart", + .id = 1, + .dev = { + .platform_data = &uart0_data, + .coherent_dma_mask = 0xffffffff, + }, + .resource = uart0_resources, + .num_resources = ARRAY_SIZE(uart0_resources), +}; + +static inline void configure_usart0_pins(void) +{ + at91_set_A_periph(AT91_PIN_PA17, 1); /* TXD0 */ + at91_set_A_periph(AT91_PIN_PA18, 0); /* RXD0 */ + at91_set_A_periph(AT91_PIN_PA20, 0); /* CTS0 */ + + /* + * AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21. + * We need to drive the pin manually. Default is off (RTS is active low). + */ + at91_set_gpio_output(AT91_PIN_PA21, 1); +} + +static struct resource uart1_resources[] = { + [0] = { + .start = AT91_BASE_US1, + .end = AT91_BASE_US1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_US1, + .end = AT91_ID_US1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct at91_uart_data uart1_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static struct platform_device at91rm9200_uart1_device = { + .name = "at91_usart", + .id = 2, + .dev = { + .platform_data = &uart1_data, + .coherent_dma_mask = 0xffffffff, + }, + .resource = uart1_resources, + .num_resources = ARRAY_SIZE(uart1_resources), +}; + +static inline void configure_usart1_pins(void) +{ + at91_set_A_periph(AT91_PIN_PB18, 0); /* RI1 */ + at91_set_A_periph(AT91_PIN_PB19, 0); /* DTR1 */ + at91_set_A_periph(AT91_PIN_PB20, 1); /* TXD1 */ + at91_set_A_periph(AT91_PIN_PB21, 0); /* RXD1 */ + at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD1 */ + at91_set_A_periph(AT91_PIN_PB24, 0); /* CTS1 */ + at91_set_A_periph(AT91_PIN_PB25, 0); /* DSR1 */ + at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS1 */ +} + +static struct resource uart2_resources[] = { + [0] = { + .start = AT91_BASE_US2, + .end = AT91_BASE_US2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_US2, + .end = AT91_ID_US2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct at91_uart_data uart2_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static struct platform_device at91rm9200_uart2_device = { + .name = "at91_usart", + .id = 3, + .dev = { + .platform_data = &uart2_data, + .coherent_dma_mask = 0xffffffff, + }, + .resource = uart2_resources, + .num_resources = ARRAY_SIZE(uart2_resources), +}; + +static inline void configure_usart2_pins(void) +{ + at91_set_A_periph(AT91_PIN_PA22, 0); /* RXD2 */ + at91_set_A_periph(AT91_PIN_PA23, 1); /* TXD2 */ +} + +static struct resource uart3_resources[] = { + [0] = { + .start = AT91_BASE_US3, + .end = AT91_BASE_US3 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_US3, + .end = AT91_ID_US3, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct at91_uart_data uart3_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static struct platform_device at91rm9200_uart3_device = { + .name = "at91_usart", + .id = 4, + .dev = { + .platform_data = &uart3_data, + .coherent_dma_mask = 0xffffffff, + }, + .resource = uart3_resources, + .num_resources = ARRAY_SIZE(uart3_resources), +}; + +static inline void configure_usart3_pins(void) +{ + at91_set_B_periph(AT91_PIN_PA5, 1); /* TXD3 */ + at91_set_B_periph(AT91_PIN_PA6, 0); /* RXD3 */ +} + +struct platform_device *at91_uarts[AT91_NR_UART]; /* the UARTs to use */ +struct platform_device *at91_default_console_device; /* the serial console device */ + +void __init at91_init_serial(struct at91_uart_config *config) +{ + int i; + + /* Fill in list of supported UARTs */ + for (i = 0; i < config->nr_tty; i++) { + switch (config->tty_map[i]) { + case 0: + configure_usart0_pins(); + at91_uarts[i] = &at91rm9200_uart0_device; + at91_clock_associate("usart0_clk", &at91rm9200_uart0_device.dev, "usart"); + break; + case 1: + configure_usart1_pins(); + at91_uarts[i] = &at91rm9200_uart1_device; + at91_clock_associate("usart1_clk", &at91rm9200_uart1_device.dev, "usart"); + break; + case 2: + configure_usart2_pins(); + at91_uarts[i] = &at91rm9200_uart2_device; + at91_clock_associate("usart2_clk", &at91rm9200_uart2_device.dev, "usart"); + break; + case 3: + configure_usart3_pins(); + at91_uarts[i] = &at91rm9200_uart3_device; + at91_clock_associate("usart3_clk", &at91rm9200_uart3_device.dev, "usart"); + break; + case 4: + configure_dbgu_pins(); + at91_uarts[i] = &at91rm9200_dbgu_device; + at91_clock_associate("mck", &at91rm9200_dbgu_device.dev, "usart"); + break; + default: + continue; + } + at91_uarts[i]->id = i; /* update ID number to mapped ID */ + } + + /* Set serial console device */ + if (config->console_tty < AT91_NR_UART) + at91_default_console_device = at91_uarts[config->console_tty]; + if (!at91_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + +void __init at91_add_device_serial(void) +{ + int i; + + for (i = 0; i < AT91_NR_UART; i++) { + if (at91_uarts[i]) + platform_device_register(at91_uarts[i]); + } +} +#else +void __init at91_init_serial(struct at91_uart_config *config) {} +void __init at91_add_device_serial(void) {} +#endif + + /* -------------------------------------------------------------------- */ + +/* + * These devices are always present and don't need any board-specific + * setup. + */ +static int __init at91_add_standard_devices(void) +{ + at91_add_device_rtc(); + at91_add_device_watchdog(); + return 0; +} + +arch_initcall(at91_add_standard_devices);