[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>

3 files changed, 379 insertions, 2 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index d12c616407d6..5b0422cdde76 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -181,6 +181,21 @@ endif
 
 # ----------------------------------------------------------
 
+if ARCH_AT91CAP9
+
+comment "AT91CAP9 Board Type"
+
+config MACH_AT91CAP9ADK
+        bool "Atmel AT91CAP9A-DK Evaluation Kit"
+        depends on ARCH_AT91CAP9
+        help
+          Select this if you are using Atmel's AT91CAP9A-DK Evaluation Kit.
+          <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4138>
+
+endif
+
+# ----------------------------------------------------------
+
 if ARCH_AT91X40
 
 comment "AT91X40 Board Type"
@@ -201,13 +216,13 @@ comment "AT91 Board Options"
 
 config MTD_AT91_DATAFLASH_CARD
         bool "Enable DataFlash Card support"
-        depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK)
+        depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK || MACH_AT91CAP9ADK)
         help
           Enable support for the DataFlash card.
 
 config MTD_NAND_AT91_BUSWIDTH_16
         bool "Enable 16-bit data bus interface to NAND flash"
-        depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK)
+        depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK || MACH_AT91CAP9ADK)
         help
           On AT91SAM926x boards both types of NAND flash can be present
           (8 and 16 bit data bus width).
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 10413c5d3f8a..bf5f293dccf8 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -42,6 +42,9 @@ obj-$(CONFIG_MACH_AT91SAM9263EK) += board-sam9263ek.o
 # AT91SAM9RL board-specific support
 obj-$(CONFIG_MACH_AT91SAM9RLEK) += board-sam9rlek.o
 
+# AT91CAP9 board-specific support
+obj-$(CONFIG_MACH_AT91CAP9ADK)  += board-cap9adk.o
+
 # AT91X40 board-specific support
 obj-$(CONFIG_MACH_AT91EB01)     += board-eb01.o
 
diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c
new file mode 100644
index 000000000000..185437131541
--- /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