X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fmach-at91%2Fat91sam9260_devices.c;h=f20afe4d156c35a3a32d62e15347b21f9ffd72e6;hb=4fd9212cb9bad88ec7c8bf5313f53331905f957a;hp=40586e22cd385cd28dda795292f5e78b15a6199e;hpb=f188291aec9b17ef7cec01db66b9cdb6fae26372;p=linux-2.6-omap-h63xx.git diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 40586e22cd3..f20afe4d156 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -12,26 +12,25 @@ #include #include +#include #include +#include #include #include #include -#include #include +#include #include "generic.h" -#define SZ_512 0x00000200 -#define SZ_256 0x00000100 -#define SZ_16 0x00000010 /* -------------------------------------------------------------------- * USB Host * -------------------------------------------------------------------- */ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) -static u64 ohci_dmamask = 0xffffffffUL; +static u64 ohci_dmamask = DMA_BIT_MASK(32); static struct at91_usbh_data usbh_data; static struct resource usbh_resources[] = { @@ -52,7 +51,7 @@ static struct platform_device at91_usbh_device = { .id = -1, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &usbh_data, }, .resource = usbh_resources, @@ -127,7 +126,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE) -static u64 eth_dmamask = 0xffffffffUL; +static u64 eth_dmamask = DMA_BIT_MASK(32); static struct at91_eth_data eth_data; static struct resource eth_resources[] = { @@ -148,7 +147,7 @@ static struct platform_device at91sam9260_eth_device = { .id = -1, .dev = { .dma_mask = ð_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = ð_data, }, .resource = eth_resources, @@ -201,7 +200,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) -static u64 mmc_dmamask = 0xffffffffUL; +static u64 mmc_dmamask = DMA_BIT_MASK(32); static struct at91_mmc_data mmc_data; static struct resource mmc_resources[] = { @@ -222,7 +221,7 @@ static struct platform_device at91sam9260_mmc_device = { .id = -1, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc_data, }, .resource = mmc_resources, @@ -289,9 +288,14 @@ static struct at91_nand_data nand_data; #define NAND_BASE AT91_CHIPSELECT_3 static struct resource nand_resources[] = { - { + [0] = { .start = NAND_BASE, - .end = NAND_BASE + SZ_8M - 1, + .end = NAND_BASE + SZ_256M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_BASE_SYS + AT91_ECC, + .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1, .flags = IORESOURCE_MEM, } }; @@ -314,7 +318,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) return; csa = at91_sys_read(AT91_MATRIX_EBICSA); - at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC); + at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); /* set the bus interface characteristics */ at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) @@ -355,7 +359,41 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA23, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA24, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9260_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA23, 1); + + at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA24, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91sam9260_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -377,7 +415,7 @@ static struct platform_device at91sam9260_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */ @@ -386,10 +424,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA24, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91sam9260_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif @@ -398,7 +437,7 @@ void __init at91_add_device_i2c(void) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) -static u64 spi_dmamask = 0xffffffffUL; +static u64 spi_dmamask = DMA_BIT_MASK(32); static struct resource spi0_resources[] = { [0] = { @@ -418,7 +457,7 @@ static struct platform_device at91sam9260_spi0_device = { .id = 0, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi0_resources, .num_resources = ARRAY_SIZE(spi0_resources), @@ -444,7 +483,7 @@ static struct platform_device at91sam9260_spi1_device = { .id = 1, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi1_resources, .num_resources = ARRAY_SIZE(spi1_resources), @@ -506,24 +545,126 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) /* -------------------------------------------------------------------- - * LEDs + * RTT * -------------------------------------------------------------------- */ -#if defined(CONFIG_LEDS) -u8 at91_leds_cpu; -u8 at91_leds_timer; +static struct resource rtt_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT, + .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9260_rtt_device = { + .name = "at91_rtt", + .id = 0, + .resource = rtt_resources, + .num_resources = ARRAY_SIZE(rtt_resources), +}; -void __init at91_init_leds(u8 cpu_led, u8 timer_led) +static void __init at91_add_device_rtt(void) { - /* Enable GPIO to access the LEDs */ - at91_set_gpio_output(cpu_led, 1); - at91_set_gpio_output(timer_led, 1); + platform_device_register(&at91sam9260_rtt_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ - at91_leds_cpu = cpu_led; - at91_leds_timer = timer_led; +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9260_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9260_wdt_device); } #else -void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc_resources[] = { + [0] = { + .start = AT91SAM9260_BASE_SSC, + .end = AT91SAM9260_BASE_SSC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9260_ID_SSC, + .end = AT91SAM9260_ID_SSC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9260_ssc_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc_resources, + .num_resources = ARRAY_SIZE(ssc_resources), +}; + +static inline void configure_ssc_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB17, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB16, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB18, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB19, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB20, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB21, 1); +} + +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9260_ID_SSC: + pdev = &at91sam9260_ssc_device; + configure_ssc_pins(pins); + at91_clock_associate("ssc_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} #endif @@ -550,12 +691,15 @@ static struct atmel_uart_data dbgu_data = { .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_dbgu_device = { .name = "atmel_usart", .id = 0, .dev = { - .platform_data = &dbgu_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, }, .resource = dbgu_resources, .num_resources = ARRAY_SIZE(dbgu_resources), @@ -585,27 +729,37 @@ static struct atmel_uart_data uart0_data = { .use_dma_rx = 1, }; +static u64 uart0_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart0_device = { .name = "atmel_usart", .id = 1, .dev = { - .platform_data = &uart0_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, }, .resource = uart0_resources, .num_resources = ARRAY_SIZE(uart0_resources), }; -static inline void configure_usart0_pins(void) +static inline void configure_usart0_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */ - at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */ - at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */ - at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */ - at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */ - at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */ - at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */ + if (pins & ATMEL_UART_DTR) + at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */ + if (pins & ATMEL_UART_DSR) + at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */ + if (pins & ATMEL_UART_DCD) + at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */ + if (pins & ATMEL_UART_RI) + at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */ } static struct resource uart1_resources[] = { @@ -626,23 +780,29 @@ static struct atmel_uart_data uart1_data = { .use_dma_rx = 1, }; +static u64 uart1_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart1_device = { .name = "atmel_usart", .id = 2, .dev = { - .platform_data = &uart1_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, }, .resource = uart1_resources, .num_resources = ARRAY_SIZE(uart1_resources), }; -static inline void configure_usart1_pins(void) +static inline void configure_usart1_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */ - at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */ - at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */ } static struct resource uart2_resources[] = { @@ -663,21 +823,29 @@ static struct atmel_uart_data uart2_data = { .use_dma_rx = 1, }; +static u64 uart2_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart2_device = { .name = "atmel_usart", .id = 3, .dev = { - .platform_data = &uart2_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, }, .resource = uart2_resources, .num_resources = ARRAY_SIZE(uart2_resources), }; -static inline void configure_usart2_pins(void) +static inline void configure_usart2_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */ at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PA4, 0); /* RTS2 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA5, 0); /* CTS2 */ } static struct resource uart3_resources[] = { @@ -698,21 +866,29 @@ static struct atmel_uart_data uart3_data = { .use_dma_rx = 1, }; +static u64 uart3_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart3_device = { .name = "atmel_usart", .id = 4, .dev = { - .platform_data = &uart3_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart3_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart3_data, }, .resource = uart3_resources, .num_resources = ARRAY_SIZE(uart3_resources), }; -static inline void configure_usart3_pins(void) +static inline void configure_usart3_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB10, 1); /* TXD3 */ at91_set_A_periph(AT91_PIN_PB11, 0); /* RXD3 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PC8, 0); /* RTS3 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PC10, 0); /* CTS3 */ } static struct resource uart4_resources[] = { @@ -733,12 +909,15 @@ static struct atmel_uart_data uart4_data = { .use_dma_rx = 1, }; +static u64 uart4_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart4_device = { .name = "atmel_usart", .id = 5, .dev = { - .platform_data = &uart4_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart4_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart4_data, }, .resource = uart4_resources, .num_resources = ARRAY_SIZE(uart4_resources), @@ -768,12 +947,15 @@ static struct atmel_uart_data uart5_data = { .use_dma_rx = 1, }; +static u64 uart5_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart5_device = { .name = "atmel_usart", .id = 6, .dev = { - .platform_data = &uart5_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart5_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart5_data, }, .resource = uart5_resources, .num_resources = ARRAY_SIZE(uart5_resources), @@ -785,10 +967,10 @@ static inline void configure_usart5_pins(void) at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */ } -struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ struct platform_device *atmel_default_console_device; /* the serial console device */ -void __init at91_init_serial(struct at91_uart_config *config) +void __init __deprecated at91_init_serial(struct at91_uart_config *config) { int i; @@ -796,22 +978,22 @@ void __init at91_init_serial(struct at91_uart_config *config) for (i = 0; i < config->nr_tty; i++) { switch (config->tty_map[i]) { case 0: - configure_usart0_pins(); + configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI); at91_uarts[i] = &at91sam9260_uart0_device; at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart"); break; case 1: - configure_usart1_pins(); + configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9260_uart1_device; at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart"); break; case 2: - configure_usart2_pins(); + configure_usart2_pins(0); at91_uarts[i] = &at91sam9260_uart2_device; at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart"); break; case 3: - configure_usart3_pins(); + configure_usart3_pins(0); at91_uarts[i] = &at91sam9260_uart3_device; at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart"); break; @@ -843,6 +1025,63 @@ void __init at91_init_serial(struct at91_uart_config *config) printk(KERN_INFO "AT91: No default serial console defined.\n"); } +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91sam9260_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US0: + pdev = &at91sam9260_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US1: + pdev = &at91sam9260_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US2: + pdev = &at91sam9260_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US3: + pdev = &at91sam9260_uart3_device; + configure_usart3_pins(pins); + at91_clock_associate("usart3_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US4: + pdev = &at91sam9260_uart4_device; + configure_usart4_pins(); + at91_clock_associate("usart4_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US5: + pdev = &at91sam9260_uart5_device; + configure_usart5_pins(); + at91_clock_associate("usart5_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + void __init at91_add_device_serial(void) { int i; @@ -853,7 +1092,9 @@ void __init at91_add_device_serial(void) } } #else -void __init at91_init_serial(struct at91_uart_config *config) {} +void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} #endif @@ -865,6 +1106,8 @@ void __init at91_add_device_serial(void) {} */ static int __init at91_add_standard_devices(void) { + at91_add_device_rtt(); + at91_add_device_watchdog(); return 0; }