| /* |
| * arch/arm/mach-at91/at91sam9260_devices.c |
| * |
| * Copyright (C) 2006 Atmel |
| * |
| * 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 <common.h> |
| #include <asm/armlinux.h> |
| #include <asm/hardware.h> |
| #include <mach/board.h> |
| #include <mach/at91_pmc.h> |
| #include <mach/at91sam9260_matrix.h> |
| #include <mach/gpio.h> |
| #include <mach/io.h> |
| |
| #include "generic.h" |
| |
| static struct memory_platform_data sram_pdata = { |
| .name = "sram0", |
| .flags = DEVFS_RDWR, |
| }; |
| |
| static struct device_d sdram_dev = { |
| .id = -1, |
| .name = "mem", |
| .map_base = AT91_CHIPSELECT_1, |
| .platform_data = &sram_pdata, |
| }; |
| |
| void at91_add_device_sdram(u32 size) |
| { |
| sdram_dev.size = size; |
| register_device(&sdram_dev); |
| armlinux_add_dram(&sdram_dev); |
| } |
| |
| #if defined(CONFIG_DRIVER_NET_MACB) |
| static struct device_d macb_dev = { |
| .id = -1, |
| .name = "macb", |
| .map_base = AT91SAM9260_BASE_EMAC, |
| .size = 0x1000, |
| }; |
| |
| void at91_add_device_eth(struct at91_ether_platform_data *data) |
| { |
| if (!data) |
| return; |
| |
| /* Pins used for MII and RMII */ |
| at91_set_A_periph(AT91_PIN_PA19, 0); /* ETXCK_EREFCK */ |
| at91_set_A_periph(AT91_PIN_PA17, 0); /* ERXDV */ |
| at91_set_A_periph(AT91_PIN_PA14, 0); /* ERX0 */ |
| at91_set_A_periph(AT91_PIN_PA15, 0); /* ERX1 */ |
| at91_set_A_periph(AT91_PIN_PA18, 0); /* ERXER */ |
| at91_set_A_periph(AT91_PIN_PA16, 0); /* ETXEN */ |
| at91_set_A_periph(AT91_PIN_PA12, 0); /* ETX0 */ |
| at91_set_A_periph(AT91_PIN_PA13, 0); /* ETX1 */ |
| at91_set_A_periph(AT91_PIN_PA21, 0); /* EMDIO */ |
| at91_set_A_periph(AT91_PIN_PA20, 0); /* EMDC */ |
| |
| if (!(data->flags & AT91SAM_ETHER_RMII)) { |
| at91_set_B_periph(AT91_PIN_PA28, 0); /* ECRS */ |
| at91_set_B_periph(AT91_PIN_PA29, 0); /* ECOL */ |
| at91_set_B_periph(AT91_PIN_PA25, 0); /* ERX2 */ |
| at91_set_B_periph(AT91_PIN_PA26, 0); /* ERX3 */ |
| at91_set_B_periph(AT91_PIN_PA27, 0); /* ERXCK */ |
| at91_set_B_periph(AT91_PIN_PA23, 0); /* ETX2 */ |
| at91_set_B_periph(AT91_PIN_PA24, 0); /* ETX3 */ |
| at91_set_B_periph(AT91_PIN_PA22, 0); /* ETXER */ |
| } |
| |
| macb_dev.platform_data = data; |
| register_device(&macb_dev); |
| } |
| #else |
| void at91_add_device_eth(struct at91_ether_platform_data *data) {} |
| #endif |
| |
| #if defined(CONFIG_NAND_ATMEL) |
| static struct device_d nand_dev = { |
| .id = -1, |
| .name = "atmel_nand", |
| .map_base = AT91_CHIPSELECT_3, |
| .size = 0x10, |
| }; |
| |
| void at91_add_device_nand(struct atmel_nand_data *data) |
| { |
| unsigned long csa; |
| |
| if (!data) |
| return; |
| |
| csa = at91_sys_read(AT91_MATRIX_EBICSA); |
| at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); |
| |
| /* 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); |
| |
| nand_dev.platform_data = data; |
| register_device(&nand_dev); |
| } |
| #else |
| void at91_add_device_nand(struct atmel_nand_data *data) {} |
| #endif |
| |
| static struct device_d dbgu_serial_device = { |
| .id = 0, |
| .name = "atmel_serial", |
| .map_base = AT91_BASE_SYS + AT91_DBGU, |
| .size = 4096, |
| }; |
| |
| static inline void configure_dbgu_pins(void) |
| { |
| at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */ |
| at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */ |
| } |
| |
| static struct device_d uart0_serial_device = { |
| .id = 1, |
| .name = "atmel_serial", |
| .map_base = AT91SAM9260_BASE_US0, |
| .size = 4096, |
| }; |
| |
| 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 */ |
| |
| 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 device_d uart1_serial_device = { |
| .id = 2, |
| .name = "atmel_serial", |
| .map_base = AT91SAM9260_BASE_US1, |
| .size = 4096, |
| }; |
| |
| 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 */ |
| |
| 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 device_d uart2_serial_device = { |
| .id = 3, |
| .name = "atmel_serial", |
| .map_base = AT91SAM9260_BASE_US2, |
| .size = 4096, |
| }; |
| |
| 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 device_d uart3_serial_device = { |
| .id = 4, |
| .name = "atmel_serial", |
| .map_base = AT91SAM9260_BASE_US3, |
| .size = 4096, |
| }; |
| |
| 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 device_d uart4_serial_device = { |
| .id = 5, |
| .name = "atmel_serial", |
| .map_base = AT91SAM9260_BASE_US4, |
| .size = 4096, |
| }; |
| |
| static inline void configure_usart4_pins(void) |
| { |
| at91_set_B_periph(AT91_PIN_PA31, 1); /* TXD4 */ |
| at91_set_B_periph(AT91_PIN_PA30, 0); /* RXD4 */ |
| } |
| |
| static struct device_d uart5_serial_device = { |
| .id = 6, |
| .name = "atmel_serial", |
| .map_base = AT91SAM9260_BASE_US5, |
| .size = 4096, |
| }; |
| |
| static inline void configure_usart5_pins(void) |
| { |
| at91_set_A_periph(AT91_PIN_PB12, 1); /* TXD5 */ |
| at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */ |
| } |
| |
| void at91_register_uart(unsigned id, unsigned pins) |
| { |
| switch (id) { |
| case 0: /* DBGU */ |
| configure_dbgu_pins(); |
| at91_clock_associate("mck", &dbgu_serial_device, "usart"); |
| register_device(&dbgu_serial_device); |
| break; |
| case AT91SAM9260_ID_US0: |
| configure_usart0_pins(pins); |
| at91_clock_associate("usart0_clk", &uart0_serial_device, "usart"); |
| register_device(&uart0_serial_device); |
| break; |
| case AT91SAM9260_ID_US1: |
| configure_usart1_pins(pins); |
| at91_clock_associate("usart1_clk", &uart1_serial_device, "usart"); |
| register_device(&uart1_serial_device); |
| break; |
| case AT91SAM9260_ID_US2: |
| configure_usart2_pins(pins); |
| at91_clock_associate("usart2_clk", &uart2_serial_device, "usart"); |
| register_device(&uart2_serial_device); |
| break; |
| case AT91SAM9260_ID_US3: |
| configure_usart3_pins(pins); |
| at91_clock_associate("usart3_clk", &uart3_serial_device, "usart"); |
| register_device(&uart3_serial_device); |
| break; |
| case AT91SAM9260_ID_US4: |
| configure_usart4_pins(); |
| at91_clock_associate("usart4_clk", &uart4_serial_device, "usart"); |
| register_device(&uart4_serial_device); |
| break; |
| case AT91SAM9260_ID_US5: |
| configure_usart5_pins(); |
| at91_clock_associate("usart5_clk", &uart5_serial_device, "usart"); |
| register_device(&uart5_serial_device); |
| break; |
| default: |
| return; |
| } |
| } |
