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original_kernel/arch/arm/mach-at91/board-cap9adk.c

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/*
* 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
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