omap1: Add board support and LCD for HTC Herald

This patch introduces support for the HTC Herald (T-Mobile
Wing, etc.) series of smart phones -- board support and LCD
panel settings.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 247 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..5f28a5ceacac
--- /dev/null
+++ b/arch/arm/mach-omap1/board-htcherald.c
@@ -0,0 +1,247 @@
+/*
+ * 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 <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,
+};
+
+/* 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);
+	}
+}
+
+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();
+}
+
+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