From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-at91/board-yl-9200.c | 606 +++++++++++++++++++++++++++++++++++++ 1 file changed, 606 insertions(+) create mode 100644 arch/arm/mach-at91/board-yl-9200.c (limited to 'arch/arm/mach-at91/board-yl-9200.c') diff --git a/arch/arm/mach-at91/board-yl-9200.c b/arch/arm/mach-at91/board-yl-9200.c new file mode 100644 index 00000000..c208cc33 --- /dev/null +++ b/arch/arm/mach-at91/board-yl-9200.c @@ -0,0 +1,606 @@ +/* + * linux/arch/arm/mach-at91/board-yl-9200.c + * + * Adapted from various board files in arch/arm/mach-at91 + * + * Modifications for YL-9200 platform: + * Copyright (C) 2007 S. Birtles + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "generic.h" + + +static void __init yl9200_init_early(void) +{ + /* Set cpu type: PQFP */ + at91rm9200_set_type(ARCH_REVISON_9200_PQFP); + + /* Initialize processor: 18.432 MHz crystal */ + at91rm9200_initialize(18432000); + + /* Setup the LEDs D2=PB17 (timer), D3=PB16 (cpu) */ + at91_init_leds(AT91_PIN_PB16, AT91_PIN_PB17); + + /* DBGU on ttyS0. (Rx & Tx only) */ + at91_register_uart(0, 0, 0); + + /* USART1 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ + at91_register_uart(AT91RM9200_ID_US1, 1, ATMEL_UART_CTS | ATMEL_UART_RTS + | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD + | ATMEL_UART_RI); + + /* USART0 on ttyS2. (Rx & Tx only to JP3) */ + at91_register_uart(AT91RM9200_ID_US0, 2, 0); + + /* USART3 on ttyS3. (Rx, Tx, RTS - RS485 interface) */ + at91_register_uart(AT91RM9200_ID_US3, 3, ATMEL_UART_RTS); + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +static void __init yl9200_init_irq(void) +{ + at91rm9200_init_interrupts(NULL); +} + + +/* + * LEDs + */ +static struct gpio_led yl9200_leds[] = { + { /* D2 */ + .name = "led2", + .gpio = AT91_PIN_PB17, + .active_low = 1, + .default_trigger = "timer", + }, + { /* D3 */ + .name = "led3", + .gpio = AT91_PIN_PB16, + .active_low = 1, + .default_trigger = "heartbeat", + }, + { /* D4 */ + .name = "led4", + .gpio = AT91_PIN_PB15, + .active_low = 1, + }, + { /* D5 */ + .name = "led5", + .gpio = AT91_PIN_PB8, + .active_low = 1, + } +}; + +/* + * Ethernet + */ +static struct at91_eth_data __initdata yl9200_eth_data = { + .phy_irq_pin = AT91_PIN_PB28, + .is_rmii = 1, +}; + +/* + * USB Host + */ +static struct at91_usbh_data __initdata yl9200_usbh_data = { + .ports = 1, /* PQFP version of AT91RM9200 */ +}; + +/* + * USB Device + */ +static struct at91_udc_data __initdata yl9200_udc_data = { + .pullup_pin = AT91_PIN_PC4, + .vbus_pin = AT91_PIN_PC5, + .pullup_active_low = 1, /* Active Low due to PNP transistor (pg 7) */ + +}; + +/* + * MMC + */ +static struct at91_mmc_data __initdata yl9200_mmc_data = { + .det_pin = AT91_PIN_PB9, + // .wp_pin = ... not connected + .wire4 = 1, +}; + +/* + * NAND Flash + */ +static struct mtd_partition __initdata yl9200_nand_partition[] = { + { + .name = "AT91 NAND partition 1, boot", + .offset = 0, + .size = SZ_256K + }, + { + .name = "AT91 NAND partition 2, kernel", + .offset = MTDPART_OFS_NXTBLK, + .size = (2 * SZ_1M) - SZ_256K + }, + { + .name = "AT91 NAND partition 3, filesystem", + .offset = MTDPART_OFS_NXTBLK, + .size = 14 * SZ_1M + }, + { + .name = "AT91 NAND partition 4, storage", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_16M + }, + { + .name = "AT91 NAND partition 5, ext-fs", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_32M + } +}; + +static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) +{ + *num_partitions = ARRAY_SIZE(yl9200_nand_partition); + return yl9200_nand_partition; +} + +static struct atmel_nand_data __initdata yl9200_nand_data = { + .ale = 6, + .cle = 7, + // .det_pin = ... not connected + .rdy_pin = AT91_PIN_PC14, /* R/!B (Sheet10) */ + .enable_pin = AT91_PIN_PC15, /* !CE (Sheet10) */ + .partition_info = nand_partitions, +}; + +/* + * NOR Flash + */ +#define YL9200_FLASH_BASE AT91_CHIPSELECT_0 +#define YL9200_FLASH_SIZE SZ_16M + +static struct mtd_partition yl9200_flash_partitions[] = { + { + .name = "Bootloader", + .offset = 0, + .size = SZ_256K, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "Kernel", + .offset = MTDPART_OFS_NXTBLK, + .size = (2 * SZ_1M) - SZ_256K + }, + { + .name = "Filesystem", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL + } +}; + +static struct physmap_flash_data yl9200_flash_data = { + .width = 2, + .parts = yl9200_flash_partitions, + .nr_parts = ARRAY_SIZE(yl9200_flash_partitions), +}; + +static struct resource yl9200_flash_resources[] = { + { + .start = YL9200_FLASH_BASE, + .end = YL9200_FLASH_BASE + YL9200_FLASH_SIZE - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device yl9200_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &yl9200_flash_data, + }, + .resource = yl9200_flash_resources, + .num_resources = ARRAY_SIZE(yl9200_flash_resources), +}; + +/* + * I2C (TWI) + */ +static struct i2c_board_info __initdata yl9200_i2c_devices[] = { + { /* EEPROM */ + I2C_BOARD_INFO("24c128", 0x50), + } +}; + +/* + * GPIO Buttons +*/ +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +static struct gpio_keys_button yl9200_buttons[] = { + { + .gpio = AT91_PIN_PA24, + .code = BTN_2, + .desc = "SW2", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PB1, + .code = BTN_3, + .desc = "SW3", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PB2, + .code = BTN_4, + .desc = "SW4", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PB6, + .code = BTN_5, + .desc = "SW5", + .active_low = 1, + .wakeup = 1, + } +}; + +static struct gpio_keys_platform_data yl9200_button_data = { + .buttons = yl9200_buttons, + .nbuttons = ARRAY_SIZE(yl9200_buttons), +}; + +static struct platform_device yl9200_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &yl9200_button_data, + } +}; + +static void __init yl9200_add_device_buttons(void) +{ + at91_set_gpio_input(AT91_PIN_PA24, 1); /* SW2 */ + at91_set_deglitch(AT91_PIN_PA24, 1); + at91_set_gpio_input(AT91_PIN_PB1, 1); /* SW3 */ + at91_set_deglitch(AT91_PIN_PB1, 1); + at91_set_gpio_input(AT91_PIN_PB2, 1); /* SW4 */ + at91_set_deglitch(AT91_PIN_PB2, 1); + at91_set_gpio_input(AT91_PIN_PB6, 1); /* SW5 */ + at91_set_deglitch(AT91_PIN_PB6, 1); + + /* Enable buttons (Sheet 5) */ + at91_set_gpio_output(AT91_PIN_PB7, 1); + + platform_device_register(&yl9200_button_device); +} +#else +static void __init yl9200_add_device_buttons(void) {} +#endif + +/* + * Touchscreen + */ +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) +static int ads7843_pendown_state(void) +{ + return !at91_get_gpio_value(AT91_PIN_PB11); /* Touchscreen PENIRQ */ +} + +static struct ads7846_platform_data ads_info = { + .model = 7843, + .x_min = 150, + .x_max = 3830, + .y_min = 190, + .y_max = 3830, + .vref_delay_usecs = 100, + + /* For a 8" touch-screen */ + // .x_plate_ohms = 603, + // .y_plate_ohms = 332, + + /* For a 10.4" touch-screen */ + // .x_plate_ohms = 611, + // .y_plate_ohms = 325, + + .x_plate_ohms = 576, + .y_plate_ohms = 366, + + .pressure_max = 15000, /* generally nonsense on the 7843 */ + .debounce_max = 1, + .debounce_rep = 0, + .debounce_tol = (~0), + .get_pendown_state = ads7843_pendown_state, +}; + +static void __init yl9200_add_device_ts(void) +{ + at91_set_gpio_input(AT91_PIN_PB11, 1); /* Touchscreen interrupt pin */ + at91_set_gpio_input(AT91_PIN_PB10, 1); /* Touchscreen BUSY signal - not used! */ +} +#else +static void __init yl9200_add_device_ts(void) {} +#endif + +/* + * SPI devices + */ +static struct spi_board_info yl9200_spi_devices[] = { +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) + { /* Touchscreen */ + .modalias = "ads7846", + .chip_select = 0, + .max_speed_hz = 5000 * 26, + .platform_data = &ads_info, + .irq = AT91_PIN_PB11, + }, +#endif + { /* CAN */ + .modalias = "mcp2510", + .chip_select = 1, + .max_speed_hz = 25000 * 26, + .irq = AT91_PIN_PC0, + } +}; + +/* + * LCD / VGA + * + * EPSON S1D13806 FB (discontinued chip) + * EPSON S1D13506 FB + */ +#if defined(CONFIG_FB_S1D13XXX) || defined(CONFIG_FB_S1D13XXX_MODULE) +#include