[ARM] 4765/1: [AT91] AT91CAP9A-DK board support
Add support for the Atmel AT91CAP9A-DK Evaluation Kit board.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c
new file mode 100644
index 0000000..1854371
--- /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