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-rw-r--r--arch/arm/mach-omap1/board-htcherald.c311
1 files changed, 311 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-htcherald.c b/arch/arm/mach-omap1/board-htcherald.c
new file mode 100644
index 000000000000..e36639f66150
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+++ b/arch/arm/mach-omap1/board-htcherald.c
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+/*
+ * HTC Herald board configuration
+ * Copyright (C) 2009 Cory Maccarrone <darkstar6262@gmail.com>
+ * Copyright (C) 2009 Wing Linux
+ *
+ * Based on the board-htcwizard.c file from the linwizard project:
+ * Copyright (C) 2006 Unai Uribarri
+ * Copyright (C) 2008 linwizard.sourceforge.net
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/bootmem.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <plat/omap7xx.h>
+#include <plat/common.h>
+#include <plat/board.h>
+#include <plat/keypad.h>
+#include <plat/usb.h>
+
+#include <mach/irqs.h>
+
+#include <linux/delay.h>
+
+/* LCD register definition */
+#define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
+#define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
+#define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
+#define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
+#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
+#define OMAP_LCDC_STAT_DONE (1 << 0)
+
+static struct omap_lcd_config htcherald_lcd_config __initdata = {
+ .ctrl_name = "internal",
+};
+
+static struct omap_board_config_kernel htcherald_config[] __initdata = {
+ { OMAP_TAG_LCD, &htcherald_lcd_config },
+};
+
+/* Keyboard definition */
+
+static int htc_herald_keymap[] = {
+ KEY(0, 0, KEY_RECORD), /* Mail button */
+ KEY(0, 1, KEY_CAMERA), /* Camera */
+ KEY(0, 2, KEY_PHONE), /* Send key */
+ KEY(0, 3, KEY_VOLUMEUP), /* Volume up */
+ KEY(0, 4, KEY_F2), /* Right bar (landscape) */
+ KEY(0, 5, KEY_MAIL), /* Win key (portrait) */
+ KEY(0, 6, KEY_DIRECTORY), /* Right bar (protrait) */
+ KEY(1, 0, KEY_LEFTCTRL), /* Windows key */
+ KEY(1, 1, KEY_COMMA),
+ KEY(1, 2, KEY_M),
+ KEY(1, 3, KEY_K),
+ KEY(1, 4, KEY_SLASH), /* OK key */
+ KEY(1, 5, KEY_I),
+ KEY(1, 6, KEY_U),
+ KEY(2, 0, KEY_LEFTALT),
+ KEY(2, 1, KEY_TAB),
+ KEY(2, 2, KEY_N),
+ KEY(2, 3, KEY_J),
+ KEY(2, 4, KEY_ENTER),
+ KEY(2, 5, KEY_H),
+ KEY(2, 6, KEY_Y),
+ KEY(3, 0, KEY_SPACE),
+ KEY(3, 1, KEY_L),
+ KEY(3, 2, KEY_B),
+ KEY(3, 3, KEY_V),
+ KEY(3, 4, KEY_BACKSPACE),
+ KEY(3, 5, KEY_G),
+ KEY(3, 6, KEY_T),
+ KEY(4, 0, KEY_CAPSLOCK), /* Shift */
+ KEY(4, 1, KEY_C),
+ KEY(4, 2, KEY_F),
+ KEY(4, 3, KEY_R),
+ KEY(4, 4, KEY_O),
+ KEY(4, 5, KEY_E),
+ KEY(4, 6, KEY_D),
+ KEY(5, 0, KEY_X),
+ KEY(5, 1, KEY_Z),
+ KEY(5, 2, KEY_S),
+ KEY(5, 3, KEY_W),
+ KEY(5, 4, KEY_P),
+ KEY(5, 5, KEY_Q),
+ KEY(5, 6, KEY_A),
+ KEY(6, 0, KEY_CONNECT), /* Voice button */
+ KEY(6, 2, KEY_CANCEL), /* End key */
+ KEY(6, 3, KEY_VOLUMEDOWN), /* Volume down */
+ KEY(6, 4, KEY_F1), /* Left bar (landscape) */
+ KEY(6, 5, KEY_WWW), /* OK button (portrait) */
+ KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
+ 0
+};
+
+struct omap_kp_platform_data htcherald_kp_data = {
+ .rows = 7,
+ .cols = 7,
+ .delay = 20,
+ .rep = 1,
+ .keymap = htc_herald_keymap,
+};
+
+static struct resource kp_resources[] = {
+ [0] = {
+ .start = INT_7XX_MPUIO_KEYPAD,
+ .end = INT_7XX_MPUIO_KEYPAD,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device kp_device = {
+ .name = "omap-keypad",
+ .id = -1,
+ .dev = {
+ .platform_data = &htcherald_kp_data,
+ },
+ .num_resources = ARRAY_SIZE(kp_resources),
+ .resource = kp_resources,
+};
+
+/* USB Device */
+static struct omap_usb_config htcherald_usb_config __initdata = {
+ .otg = 0,
+ .register_host = 0,
+ .register_dev = 1,
+ .hmc_mode = 4,
+ .pins[0] = 2,
+};
+
+/* LCD Device resources */
+static struct platform_device lcd_device = {
+ .name = "lcd_htcherald",
+ .id = -1,
+};
+
+static struct platform_device *devices[] __initdata = {
+ &kp_device,
+ &lcd_device,
+};
+
+/*
+ * Init functions from here on
+ */
+
+static void __init htcherald_lcd_init(void)
+{
+ u32 reg;
+ unsigned int tries = 200;
+
+ /* disable controller if active */
+ reg = omap_readl(OMAP_LCDC_CONTROL);
+ if (reg & OMAP_LCDC_CTRL_LCD_EN) {
+ reg &= ~OMAP_LCDC_CTRL_LCD_EN;
+ omap_writel(reg, OMAP_LCDC_CONTROL);
+
+ /* wait for end of frame */
+ while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
+ tries--;
+ if (!tries)
+ break;
+ }
+ if (!tries)
+ printk(KERN_WARNING "Timeout waiting for end of frame "
+ "-- LCD may not be available\n");
+
+ /* turn off DMA */
+ reg = omap_readw(OMAP_DMA_LCD_CCR);
+ reg &= ~(1 << 7);
+ omap_writew(reg, OMAP_DMA_LCD_CCR);
+
+ reg = omap_readw(OMAP_DMA_LCD_CTRL);
+ reg &= ~(1 << 8);
+ omap_writew(reg, OMAP_DMA_LCD_CTRL);
+ }
+}
+
+static void __init htcherald_map_io(void)
+{
+ omap1_map_common_io();
+
+ /*
+ * The LCD panel must be disabled and DMA turned off here, as doing
+ * it later causes the LCD never to reinitialize.
+ */
+ htcherald_lcd_init();
+
+ printk(KERN_INFO "htcherald_map_io done.\n");
+}
+
+static void __init htcherald_disable_watchdog(void)
+{
+ /* Disable watchdog if running */
+ if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
+ /*
+ * disable a potentially running watchdog timer before
+ * it kills us.
+ */
+ printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
+ omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
+ omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
+ }
+}
+
+#define HTCHERALD_GPIO_USB_EN1 33
+#define HTCHERALD_GPIO_USB_EN2 73
+#define HTCHERALD_GPIO_USB_DM 35
+#define HTCHERALD_GPIO_USB_DP 36
+
+static void __init htcherald_usb_enable(void)
+{
+ unsigned int tries = 20;
+ unsigned int value = 0;
+
+ /* Request the GPIOs we need to control here */
+ if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
+ goto err1;
+
+ if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
+ goto err2;
+
+ if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
+ goto err3;
+
+ if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
+ goto err4;
+
+ /* force USB_EN GPIO to 0 */
+ do {
+ /* output low */
+ gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
+ } while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
+ --tries);
+
+ if (value == 1)
+ printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
+
+ gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
+ gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
+ gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
+
+ goto done;
+
+err4:
+ gpio_free(HTCHERALD_GPIO_USB_DM);
+err3:
+ gpio_free(HTCHERALD_GPIO_USB_EN2);
+err2:
+ gpio_free(HTCHERALD_GPIO_USB_EN1);
+err1:
+ printk(KERN_ERR "Unabled to request GPIO for USB\n");
+done:
+ printk(KERN_INFO "USB setup complete.\n");
+}
+
+static void __init htcherald_init(void)
+{
+ printk(KERN_INFO "HTC Herald init.\n");
+
+ omap_gpio_init();
+
+ omap_board_config = htcherald_config;
+ omap_board_config_size = ARRAY_SIZE(htcherald_config);
+ platform_add_devices(devices, ARRAY_SIZE(devices));
+
+ htcherald_disable_watchdog();
+
+ htcherald_usb_enable();
+ omap_usb_init(&htcherald_usb_config);
+}
+
+static void __init htcherald_init_irq(void)
+{
+ printk(KERN_INFO "htcherald_init_irq.\n");
+ omap1_init_common_hw();
+ omap_init_irq();
+}
+
+MACHINE_START(HERALD, "HTC Herald")
+ /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
+ /* Maintainer: wing-linux.sourceforge.net */
+ .phys_io = 0xfff00000,
+ .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
+ .boot_params = 0x10000100,
+ .map_io = htcherald_map_io,
+ .init_irq = htcherald_init_irq,
+ .init_machine = htcherald_init,
+ .timer = &omap_timer,
+MACHINE_END
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