/* * arch/arm/mach-at91rm9200/devices.c * * Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org> * Copyright (C) 2005 David Brownell * * 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 <asm/mach/arch.h> #include <asm/mach/map.h> #include <linux/platform_device.h> #include <asm/hardware.h> #include <asm/arch/board.h> #include <asm/arch/gpio.h> #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 struct at91_usbh_data usbh_data; static struct resource at91_usbh_resources[] = { [0] = { .start = AT91RM9200_UHP_BASE, .end = AT91RM9200_UHP_BASE + SZ_1M - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_UHP, .end = AT91RM9200_ID_UHP, .flags = IORESOURCE_IRQ, }, }; static struct platform_device at91rm9200_usbh_device = { .name = "at91_ohci", .id = -1, .dev = { .dma_mask = &ohci_dmamask, .coherent_dma_mask = 0xffffffff, .platform_data = &usbh_data, }, .resource = at91_usbh_resources, .num_resources = ARRAY_SIZE(at91_usbh_resources), }; void __init at91_add_device_usbh(struct at91_usbh_data *data) { if (!data) return; usbh_data = *data; platform_device_register(&at91rm9200_usbh_device); } #else void __init at91_add_device_usbh(struct at91_usbh_data *data) {} #endif /* -------------------------------------------------------------------- * USB Device (Gadget) * -------------------------------------------------------------------- */ #ifdef CONFIG_USB_GADGET_AT91 static struct at91_udc_data udc_data; static struct resource at91_udc_resources[] = { [0] = { .start = AT91RM9200_BASE_UDP, .end = AT91RM9200_BASE_UDP + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_UDP, .end = AT91RM9200_ID_UDP, .flags = IORESOURCE_IRQ, }, }; static struct platform_device at91rm9200_udc_device = { .name = "at91_udc", .id = -1, .dev = { .platform_data = &udc_data, }, .resource = at91_udc_resources, .num_resources = ARRAY_SIZE(at91_udc_resources), }; void __init at91_add_device_udc(struct at91_udc_data *data) { if (!data) return; if (data->vbus_pin) { at91_set_gpio_input(data->vbus_pin, 0); at91_set_deglitch(data->vbus_pin, 1); } if (data->pullup_pin) at91_set_gpio_output(data->pullup_pin, 0); udc_data = *data; platform_device_register(&at91rm9200_udc_device); } #else void __init at91_add_device_udc(struct at91_udc_data *data) {} #endif /* -------------------------------------------------------------------- * Ethernet * -------------------------------------------------------------------- */ #if defined(CONFIG_ARM_AT91_ETHER) || defined(CONFIG_ARM_AT91_ETHER_MODULE) static u64 eth_dmamask = 0xffffffffUL; static struct at91_eth_data eth_data; static struct resource at91_eth_resources[] = { [0] = { .start = AT91_VA_BASE_EMAC, .end = AT91_VA_BASE_EMAC + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_EMAC, .end = AT91RM9200_ID_EMAC, .flags = IORESOURCE_IRQ, }, }; static struct platform_device at91rm9200_eth_device = { .name = "at91_ether", .id = -1, .dev = { .dma_mask = ð_dmamask, .coherent_dma_mask = 0xffffffff, .platform_data = ð_data, }, .resource = at91_eth_resources, .num_resources = ARRAY_SIZE(at91_eth_resources), }; void __init at91_add_device_eth(struct at91_eth_data *data) { if (!data) return; if (data->phy_irq_pin) { at91_set_gpio_input(data->phy_irq_pin, 0); at91_set_deglitch(data->phy_irq_pin, 1); } /* Pins used for MII and RMII */ at91_set_A_periph(AT91_PIN_PA16, 0); /* EMDIO */ at91_set_A_periph(AT91_PIN_PA15, 0); /* EMDC */ at91_set_A_periph(AT91_PIN_PA14, 0); /* ERXER */ at91_set_A_periph(AT91_PIN_PA13, 0); /* ERX1 */ at91_set_A_periph(AT91_PIN_PA12, 0); /* ERX0 */ at91_set_A_periph(AT91_PIN_PA11, 0); /* ECRS_ECRSDV */ at91_set_A_periph(AT91_PIN_PA10, 0); /* ETX1 */ at91_set_A_periph(AT91_PIN_PA9, 0); /* ETX0 */ at91_set_A_periph(AT91_PIN_PA8, 0); /* ETXEN */ at91_set_A_periph(AT91_PIN_PA7, 0); /* ETXCK_EREFCK */ if (!data->is_rmii) { at91_set_B_periph(AT91_PIN_PB19, 0); /* ERXCK */ at91_set_B_periph(AT91_PIN_PB18, 0); /* ECOL */ at91_set_B_periph(AT91_PIN_PB17, 0); /* ERXDV */ at91_set_B_periph(AT91_PIN_PB16, 0); /* ERX3 */ at91_set_B_periph(AT91_PIN_PB15, 0); /* ERX2 */ at91_set_B_periph(AT91_PIN_PB14, 0); /* ETXER */ at91_set_B_periph(AT91_PIN_PB13, 0); /* ETX3 */ at91_set_B_periph(AT91_PIN_PB12, 0); /* ETX2 */ } eth_data = *data; platform_device_register(&at91rm9200_eth_device); } #else void __init at91_add_device_eth(struct at91_eth_data *data) {} #endif /* -------------------------------------------------------------------- * Compact Flash / PCMCIA * -------------------------------------------------------------------- */ #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, }, .resource = at91_cf_resources, .num_resources = ARRAY_SIZE(at91_cf_resources), }; void __init at91_add_device_cf(struct at91_cf_data *data) { if (!data) return; /* input/irq */ if (data->irq_pin) { at91_set_gpio_input(data->irq_pin, 1); at91_set_deglitch(data->irq_pin, 1); } at91_set_gpio_input(data->det_pin, 1); at91_set_deglitch(data->det_pin, 1); /* outputs, initially off */ if (data->vcc_pin) 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); } #else void __init at91_add_device_cf(struct at91_cf_data *data) {} #endif /* -------------------------------------------------------------------- * MMC / SD * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91RM9200) || defined(CONFIG_MMC_AT91RM9200_MODULE) static u64 mmc_dmamask = 0xffffffffUL; static struct at91_mmc_data mmc_data; static struct resource at91_mmc_resources[] = { [0] = { .start = AT91RM9200_BASE_MCI, .end = AT91RM9200_BASE_MCI + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_MCI, .end = AT91RM9200_ID_MCI, .flags = IORESOURCE_IRQ, }, }; static struct platform_device at91rm9200_mmc_device = { .name = "at91_mci", .id = -1, .dev = { .dma_mask = &mmc_dmamask, .coherent_dma_mask = 0xffffffff, .platform_data = &mmc_data, }, .resource = at91_mmc_resources, .num_resources = ARRAY_SIZE(at91_mmc_resources), }; void __init at91_add_device_mmc(struct at91_mmc_data *data) { if (!data) return; /* input/irq */ if (data->det_pin) { at91_set_gpio_input(data->det_pin, 1); at91_set_deglitch(data->det_pin, 1); } if (data->wp_pin) at91_set_gpio_input(data->wp_pin, 1); /* CLK */ at91_set_A_periph(AT91_PIN_PA27, 0); if (data->is_b) { /* CMD */ at91_set_B_periph(AT91_PIN_PA8, 0); /* DAT0, maybe DAT1..DAT3 */ at91_set_B_periph(AT91_PIN_PA9, 0); if (data->wire4) { at91_set_B_periph(AT91_PIN_PA10, 0); at91_set_B_periph(AT91_PIN_PA11, 0); at91_set_B_periph(AT91_PIN_PA12, 0); } } else { /* CMD */ at91_set_A_periph(AT91_PIN_PA28, 0); /* DAT0, maybe DAT1..DAT3 */ at91_set_A_periph(AT91_PIN_PA29, 0); if (data->wire4) { at91_set_B_periph(AT91_PIN_PB3, 0); at91_set_B_periph(AT91_PIN_PB4, 0); at91_set_B_periph(AT91_PIN_PB5, 0); } } mmc_data = *data; platform_device_register(&at91rm9200_mmc_device); } #else 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 = AT91RM9200_BASE_SPI, .end = AT91RM9200_BASE_SPI + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_SPI, .end = AT91RM9200_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_ATMEL) 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 atmel_uart_data dbgu_data = { .use_dma_tx = 0, .use_dma_rx = 0, /* DBGU not capable of receive DMA */ .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; static struct platform_device at91rm9200_dbgu_device = { .name = "atmel_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 = AT91RM9200_BASE_US0, .end = AT91RM9200_BASE_US0 + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_US0, .end = AT91RM9200_ID_US0, .flags = IORESOURCE_IRQ, }, }; static struct atmel_uart_data uart0_data = { .use_dma_tx = 1, .use_dma_rx = 1, }; static struct platform_device at91rm9200_uart0_device = { .name = "atmel_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 = AT91RM9200_BASE_US1, .end = AT91RM9200_BASE_US1 + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_US1, .end = AT91RM9200_ID_US1, .flags = IORESOURCE_IRQ, }, }; static struct atmel_uart_data uart1_data = { .use_dma_tx = 1, .use_dma_rx = 1, }; static struct platform_device at91rm9200_uart1_device = { .name = "atmel_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 = AT91RM9200_BASE_US2, .end = AT91RM9200_BASE_US2 + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_US2, .end = AT91RM9200_ID_US2, .flags = IORESOURCE_IRQ, }, }; static struct atmel_uart_data uart2_data = { .use_dma_tx = 1, .use_dma_rx = 1, }; static struct platform_device at91rm9200_uart2_device = { .name = "atmel_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 = AT91RM9200_BASE_US3, .end = AT91RM9200_BASE_US3 + SZ_16K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = AT91RM9200_ID_US3, .end = AT91RM9200_ID_US3, .flags = IORESOURCE_IRQ, }, }; static struct atmel_uart_data uart3_data = { .use_dma_tx = 1, .use_dma_rx = 1, }; static struct platform_device at91rm9200_uart3_device = { .name = "atmel_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[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) { 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 < ATMEL_MAX_UART) atmel_default_console_device = at91_uarts[config->console_tty]; if (!atmel_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 < ATMEL_MAX_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);