diff options
Diffstat (limited to 'arch/arm/mach-at91/board-cap9adk.c')
| -rw-r--r-- | arch/arm/mach-at91/board-cap9adk.c | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c new file mode 100644 index 00000000000..18543713154 --- /dev/null +++ b/arch/arm/mach-at91/board-cap9adk.c @@ -0,0 +1,359 @@ +/* + * 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 <asm/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/arch/board.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91cap9_matrix.h> +#include <asm/arch/at91sam926x_mc.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, +}; + + +/* + * 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 at91_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_AT91_BUSWIDTH_16) + .bus_width_16 = 1, +#else + .bus_width_16 = 0, +#endif +}; + + +/* + * 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 0x800000 + +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 __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); + + /* set the bus interface characteristics */ + at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2) + | AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2)); + + at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10) + | AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10)); + + at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16)); + + at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE + | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE + | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1)); + + 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 atmel_ac97_data cap9adk_ac97_data = { +// .reset_pin = ... not connected +}; + + +static void __init cap9adk_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + /* USB Host */ + set_irq_type(AT91CAP9_ID_UHP, IRQT_HIGH); + at91_add_device_usbh(&cap9adk_usbh_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 */ + at91_add_device_nand(&cap9adk_nand_data); + /* NOR Flash */ + cap9adk_add_device_nor(); + /* I2C */ + at91_add_device_i2c(NULL, 0); + /* LCD Controller */ + set_irq_type(AT91CAP9_ID_LCDC, IRQT_HIGH); + 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> */ + .phys_io = AT91_BASE_SYS, + .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, + .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 |