/* * linux/arch/arm/mach-at91/board-cap9adk.c * * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> * Copyright (C) 2005 SAN People * Copyright (C) 2007 Atmel Corporation. * * 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 <linux/types.h> #include <linux/init.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/fb.h> #include <linux/mtd/physmap.h> #include <video/atmel_lcdc.h> #include <mach/hardware.h> #include <asm/setup.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/board.h> #include <mach/gpio.h> #include <mach/at91cap9_matrix.h> #include <mach/at91sam9_smc.h> #include "sam9_smc.h" #include "generic.h" static void __init cap9adk_map_io(void) { /* Initialize processor: 12 MHz crystal */ at91cap9_initialize(12000000); /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */ at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11); /* ... POWER LED always on */ at91_set_gpio_output(AT91_PIN_PC29, 1); /* Setup the serial ports and console */ at91_register_uart(0, 0, 0); /* DBGU = ttyS0 */ at91_set_serial_console(0); } static void __init cap9adk_init_irq(void) { at91cap9_init_interrupts(NULL); } /* * USB Host port */ static struct at91_usbh_data __initdata cap9adk_usbh_data = { .ports = 2, }; /* * USB HS Device port */ static struct usba_platform_data __initdata cap9adk_usba_udc_data = { .vbus_pin = AT91_PIN_PB31, }; /* * ADS7846 Touchscreen */ #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) static int ads7843_pendown_state(void) { return !at91_get_gpio_value(AT91_PIN_PC4); /* 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, .x_plate_ohms = 450, .y_plate_ohms = 250, .pressure_max = 15000, .debounce_max = 1, .debounce_rep = 0, .debounce_tol = (~0), .get_pendown_state = ads7843_pendown_state, }; static void __init cap9adk_add_device_ts(void) { at91_set_gpio_input(AT91_PIN_PC4, 1); /* Touchscreen PENIRQ */ at91_set_gpio_input(AT91_PIN_PC5, 1); /* Touchscreen BUSY */ } #else static void __init cap9adk_add_device_ts(void) {} #endif /* * SPI devices. */ static struct spi_board_info cap9adk_spi_devices[] = { #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) { /* DataFlash card */ .modalias = "mtd_dataflash", .chip_select = 0, .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, #endif #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) { .modalias = "ads7846", .chip_select = 3, /* can be 2 or 3, depending on J2 jumper */ .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ .bus_num = 0, .platform_data = &ads_info, .irq = AT91_PIN_PC4, }, #endif }; /* * MCI (SD/MMC) */ static struct at91_mmc_data __initdata cap9adk_mmc_data = { .wire4 = 1, // .det_pin = ... not connected // .wp_pin = ... not connected // .vcc_pin = ... not connected }; /* * MACB Ethernet device */ static struct at91_eth_data __initdata cap9adk_macb_data = { .is_rmii = 1, }; /* * NAND flash */ static struct mtd_partition __initdata cap9adk_nand_partitions[] = { { .name = "NAND partition", .offset = 0, .size = MTDPART_SIZ_FULL, }, }; static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) { *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions); return cap9adk_nand_partitions; } static struct atmel_nand_data __initdata cap9adk_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected // .rdy_pin = ... not connected .enable_pin = AT91_PIN_PD15, .partition_info = nand_partitions, #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) .bus_width_16 = 1, #else .bus_width_16 = 0, #endif }; static struct sam9_smc_config __initdata cap9adk_nand_smc_config = { .ncs_read_setup = 1, .nrd_setup = 2, .ncs_write_setup = 1, .nwe_setup = 2, .ncs_read_pulse = 6, .nrd_pulse = 4, .ncs_write_pulse = 6, .nwe_pulse = 4, .read_cycle = 8, .write_cycle = 8, .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, .tdf_cycles = 1, }; static void __init cap9adk_add_device_nand(void) { unsigned long csa; csa = at91_sys_read(AT91_MATRIX_EBICSA); at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); /* setup bus-width (8 or 16) */ if (cap9adk_nand_data.bus_width_16) cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_16; else cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8; /* configure chip-select 3 (NAND) */ sam9_smc_configure(3, &cap9adk_nand_smc_config); at91_add_device_nand(&cap9adk_nand_data); } /* * NOR flash */ static struct mtd_partition cap9adk_nor_partitions[] = { { .name = "NOR partition", .offset = 0, .size = MTDPART_SIZ_FULL, }, }; static struct physmap_flash_data cap9adk_nor_data = { .width = 2, .parts = cap9adk_nor_partitions, .nr_parts = ARRAY_SIZE(cap9adk_nor_partitions), }; #define NOR_BASE AT91_CHIPSELECT_0 #define NOR_SIZE SZ_8M static struct resource nor_flash_resources[] = { { .start = NOR_BASE, .end = NOR_BASE + NOR_SIZE - 1, .flags = IORESOURCE_MEM, } }; static struct platform_device cap9adk_nor_flash = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &cap9adk_nor_data, }, .resource = nor_flash_resources, .num_resources = ARRAY_SIZE(nor_flash_resources), }; static struct sam9_smc_config __initdata cap9adk_nor_smc_config = { .ncs_read_setup = 2, .nrd_setup = 4, .ncs_write_setup = 2, .nwe_setup = 4, .ncs_read_pulse = 10, .nrd_pulse = 8, .ncs_write_pulse = 10, .nwe_pulse = 8, .read_cycle = 16, .write_cycle = 16, .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16, .tdf_cycles = 1, }; static __init void cap9adk_add_device_nor(void) { unsigned long csa; csa = at91_sys_read(AT91_MATRIX_EBICSA); at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); /* configure chip-select 0 (NOR) */ sam9_smc_configure(0, &cap9adk_nor_smc_config); platform_device_register(&cap9adk_nor_flash); } /* * LCD Controller */ #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) static struct fb_videomode at91_tft_vga_modes[] = { { .name = "TX09D50VM1CCA @ 60", .refresh = 60, .xres = 240, .yres = 320, .pixclock = KHZ2PICOS(4965), .left_margin = 1, .right_margin = 33, .upper_margin = 1, .lower_margin = 0, .hsync_len = 5, .vsync_len = 1, .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, .vmode = FB_VMODE_NONINTERLACED, }, }; static struct fb_monspecs at91fb_default_monspecs = { .manufacturer = "HIT", .monitor = "TX09D70VM1CCA", .modedb = at91_tft_vga_modes, .modedb_len = ARRAY_SIZE(at91_tft_vga_modes), .hfmin = 15000, .hfmax = 64000, .vfmin = 50, .vfmax = 150, }; #define AT91CAP9_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ | ATMEL_LCDC_DISTYPE_TFT \ | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) static void at91_lcdc_power_control(int on) { if (on) at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */ else at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */ } /* Driver datas */ static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = { .default_bpp = 16, .default_dmacon = ATMEL_LCDC_DMAEN, .default_lcdcon2 = AT91CAP9_DEFAULT_LCDCON2, .default_monspecs = &at91fb_default_monspecs, .atmel_lcdfb_power_control = at91_lcdc_power_control, .guard_time = 1, }; #else static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data; #endif /* * AC97 */ static struct ac97c_platform_data cap9adk_ac97_data = { // .reset_pin = ... not connected }; static void __init cap9adk_board_init(void) { /* Serial */ at91_add_device_serial(); /* USB Host */ at91_add_device_usbh(&cap9adk_usbh_data); /* USB HS */ at91_add_device_usba(&cap9adk_usba_udc_data); /* SPI */ at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices)); /* Touchscreen */ cap9adk_add_device_ts(); /* MMC */ at91_add_device_mmc(1, &cap9adk_mmc_data); /* Ethernet */ at91_add_device_eth(&cap9adk_macb_data); /* NAND */ cap9adk_add_device_nand(); /* NOR Flash */ cap9adk_add_device_nor(); /* I2C */ at91_add_device_i2c(NULL, 0); /* LCD Controller */ at91_add_device_lcdc(&cap9adk_lcdc_data); /* AC97 */ at91_add_device_ac97(&cap9adk_ac97_data); } MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK") /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */ .boot_params = AT91_SDRAM_BASE + 0x100, .timer = &at91sam926x_timer, .map_io = cap9adk_map_io, .init_irq = cap9adk_init_irq, .init_machine = cap9adk_board_init, MACHINE_END