610 lines
17 KiB
C
610 lines
17 KiB
C
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/*
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* HTC Herald board configuration
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* Copyright (C) 2009 Cory Maccarrone <darkstar6262@gmail.com>
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* Copyright (C) 2009 Wing Linux
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*
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* Based on the board-htcwizard.c file from the linwizard project:
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* Copyright (C) 2006 Unai Uribarri
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* Copyright (C) 2008 linwizard.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/i2c.h>
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#include <linux/i2c-gpio.h>
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#include <linux/htcpld.h>
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#include <linux/leds.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/omapfb.h>
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#include <linux/platform_data/keypad-omap.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/omap7xx.h>
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#include "mmc.h"
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#include <mach/irqs.h>
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#include <mach/usb.h>
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#include "common.h"
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/* LCD register definition */
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#define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
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#define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
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#define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
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#define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
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#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
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#define OMAP_LCDC_STAT_DONE (1 << 0)
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/* GPIO definitions for the power button and keyboard slide switch */
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#define HTCHERALD_GPIO_POWER 139
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#define HTCHERALD_GPIO_SLIDE 174
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#define HTCHERALD_GIRQ_BTNS 141
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/* GPIO definitions for the touchscreen */
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#define HTCHERALD_GPIO_TS 76
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/* HTCPLD definitions */
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/*
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* CPLD Logic
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*
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* Chip 3 - 0x03
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*
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* Function 7 6 5 4 3 2 1 0
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* ------------------------------------
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* DPAD light x x x x x x x 1
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* SoundDev x x x x 1 x x x
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* Screen white 1 x x x x x x x
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* MMC power on x x x x x 1 x x
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* Happy times (n) 0 x x x x 1 x x
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*
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* Chip 4 - 0x04
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*
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* Function 7 6 5 4 3 2 1 0
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* ------------------------------------
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* Keyboard light x x x x x x x 1
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* LCD Bright (4) x x x x x 1 1 x
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* LCD Bright (3) x x x x x 0 1 x
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* LCD Bright (2) x x x x x 1 0 x
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* LCD Bright (1) x x x x x 0 0 x
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* LCD Off x x x x 0 x x x
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* LCD image (fb) 1 x x x x x x x
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* LCD image (white) 0 x x x x x x x
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* Caps lock LED x x 1 x x x x x
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*
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* Chip 5 - 0x05
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*
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* Function 7 6 5 4 3 2 1 0
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* ------------------------------------
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* Red (solid) x x x x x 1 x x
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* Red (flash) x x x x x x 1 x
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* Green (GSM flash) x x x x 1 x x x
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* Green (GSM solid) x x x 1 x x x x
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* Green (wifi flash) x x 1 x x x x x
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* Blue (bt flash) x 1 x x x x x x
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* DPAD Int Enable 1 x x x x x x 0
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*
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* (Combinations of the above can be made for different colors.)
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* The direction pad interrupt enable must be set each time the
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* interrupt is handled.
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*
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* Chip 6 - 0x06
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*
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* Function 7 6 5 4 3 2 1 0
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* ------------------------------------
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* Vibrator x x x x 1 x x x
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* Alt LED x x x 1 x x x x
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* Screen white 1 x x x x x x x
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* Screen white x x 1 x x x x x
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* Screen white x 0 x x x x x x
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* Enable kbd dpad x x x x x x 0 x
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* Happy Times 0 1 0 x x x 0 x
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*/
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/*
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* HTCPLD GPIO lines start 16 after OMAP_MAX_GPIO_LINES to account
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* for the 16 MPUIO lines.
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*/
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#define HTCPLD_GPIO_START_OFFSET (OMAP_MAX_GPIO_LINES + 16)
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#define HTCPLD_IRQ(chip, offset) (OMAP_IRQ_END + 8 * (chip) + (offset))
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#define HTCPLD_BASE(chip, offset) \
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(HTCPLD_GPIO_START_OFFSET + 8 * (chip) + (offset))
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#define HTCPLD_GPIO_LED_DPAD HTCPLD_BASE(0, 0)
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#define HTCPLD_GPIO_LED_KBD HTCPLD_BASE(1, 0)
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#define HTCPLD_GPIO_LED_CAPS HTCPLD_BASE(1, 5)
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#define HTCPLD_GPIO_LED_RED_FLASH HTCPLD_BASE(2, 1)
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#define HTCPLD_GPIO_LED_RED_SOLID HTCPLD_BASE(2, 2)
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#define HTCPLD_GPIO_LED_GREEN_FLASH HTCPLD_BASE(2, 3)
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#define HTCPLD_GPIO_LED_GREEN_SOLID HTCPLD_BASE(2, 4)
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#define HTCPLD_GPIO_LED_WIFI HTCPLD_BASE(2, 5)
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#define HTCPLD_GPIO_LED_BT HTCPLD_BASE(2, 6)
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#define HTCPLD_GPIO_LED_VIBRATE HTCPLD_BASE(3, 3)
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#define HTCPLD_GPIO_LED_ALT HTCPLD_BASE(3, 4)
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#define HTCPLD_GPIO_RIGHT_KBD HTCPLD_BASE(6, 7)
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#define HTCPLD_GPIO_UP_KBD HTCPLD_BASE(6, 6)
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#define HTCPLD_GPIO_LEFT_KBD HTCPLD_BASE(6, 5)
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#define HTCPLD_GPIO_DOWN_KBD HTCPLD_BASE(6, 4)
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#define HTCPLD_GPIO_RIGHT_DPAD HTCPLD_BASE(7, 7)
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#define HTCPLD_GPIO_UP_DPAD HTCPLD_BASE(7, 6)
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#define HTCPLD_GPIO_LEFT_DPAD HTCPLD_BASE(7, 5)
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#define HTCPLD_GPIO_DOWN_DPAD HTCPLD_BASE(7, 4)
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#define HTCPLD_GPIO_ENTER_DPAD HTCPLD_BASE(7, 3)
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/*
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* The htcpld chip requires a gpio write to a specific line
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* to re-enable interrupts after one has occurred.
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*/
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#define HTCPLD_GPIO_INT_RESET_HI HTCPLD_BASE(2, 7)
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#define HTCPLD_GPIO_INT_RESET_LO HTCPLD_BASE(2, 0)
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/* Chip 5 */
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#define HTCPLD_IRQ_RIGHT_KBD HTCPLD_IRQ(0, 7)
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#define HTCPLD_IRQ_UP_KBD HTCPLD_IRQ(0, 6)
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#define HTCPLD_IRQ_LEFT_KBD HTCPLD_IRQ(0, 5)
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#define HTCPLD_IRQ_DOWN_KBD HTCPLD_IRQ(0, 4)
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/* Chip 6 */
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#define HTCPLD_IRQ_RIGHT_DPAD HTCPLD_IRQ(1, 7)
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#define HTCPLD_IRQ_UP_DPAD HTCPLD_IRQ(1, 6)
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#define HTCPLD_IRQ_LEFT_DPAD HTCPLD_IRQ(1, 5)
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#define HTCPLD_IRQ_DOWN_DPAD HTCPLD_IRQ(1, 4)
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#define HTCPLD_IRQ_ENTER_DPAD HTCPLD_IRQ(1, 3)
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/* Keyboard definition */
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static const unsigned int htc_herald_keymap[] = {
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KEY(0, 0, KEY_RECORD), /* Mail button */
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KEY(1, 0, KEY_CAMERA), /* Camera */
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KEY(2, 0, KEY_PHONE), /* Send key */
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KEY(3, 0, KEY_VOLUMEUP), /* Volume up */
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KEY(4, 0, KEY_F2), /* Right bar (landscape) */
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KEY(5, 0, KEY_MAIL), /* Win key (portrait) */
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KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */
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KEY(0, 1, KEY_LEFTCTRL), /* Windows key */
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KEY(1, 1, KEY_COMMA),
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KEY(2, 1, KEY_M),
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KEY(3, 1, KEY_K),
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KEY(4, 1, KEY_SLASH), /* OK key */
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KEY(5, 1, KEY_I),
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KEY(6, 1, KEY_U),
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KEY(0, 2, KEY_LEFTALT),
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KEY(1, 2, KEY_TAB),
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KEY(2, 2, KEY_N),
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KEY(3, 2, KEY_J),
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KEY(4, 2, KEY_ENTER),
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KEY(5, 2, KEY_H),
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KEY(6, 2, KEY_Y),
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KEY(0, 3, KEY_SPACE),
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KEY(1, 3, KEY_L),
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KEY(2, 3, KEY_B),
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KEY(3, 3, KEY_V),
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KEY(4, 3, KEY_BACKSPACE),
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KEY(5, 3, KEY_G),
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KEY(6, 3, KEY_T),
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KEY(0, 4, KEY_CAPSLOCK), /* Shift */
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KEY(1, 4, KEY_C),
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KEY(2, 4, KEY_F),
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KEY(3, 4, KEY_R),
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KEY(4, 4, KEY_O),
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KEY(5, 4, KEY_E),
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KEY(6, 4, KEY_D),
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KEY(0, 5, KEY_X),
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KEY(1, 5, KEY_Z),
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KEY(2, 5, KEY_S),
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KEY(3, 5, KEY_W),
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KEY(4, 5, KEY_P),
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KEY(5, 5, KEY_Q),
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KEY(6, 5, KEY_A),
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KEY(0, 6, KEY_CONNECT), /* Voice button */
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KEY(2, 6, KEY_CANCEL), /* End key */
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KEY(3, 6, KEY_VOLUMEDOWN), /* Volume down */
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KEY(4, 6, KEY_F1), /* Left bar (landscape) */
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KEY(5, 6, KEY_WWW), /* OK button (portrait) */
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KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
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};
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static const struct matrix_keymap_data htc_herald_keymap_data = {
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.keymap = htc_herald_keymap,
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.keymap_size = ARRAY_SIZE(htc_herald_keymap),
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};
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static struct omap_kp_platform_data htcherald_kp_data = {
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.rows = 7,
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.cols = 7,
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.delay = 20,
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.rep = true,
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.keymap_data = &htc_herald_keymap_data,
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};
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static struct resource kp_resources[] = {
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[0] = {
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.start = INT_7XX_MPUIO_KEYPAD,
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.end = INT_7XX_MPUIO_KEYPAD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device kp_device = {
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.name = "omap-keypad",
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.id = -1,
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.dev = {
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.platform_data = &htcherald_kp_data,
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},
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.num_resources = ARRAY_SIZE(kp_resources),
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.resource = kp_resources,
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};
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/* GPIO buttons for keyboard slide and power button */
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static struct gpio_keys_button herald_gpio_keys_table[] = {
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{BTN_0, HTCHERALD_GPIO_POWER, 1, "POWER", EV_KEY, 1, 20},
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{SW_LID, HTCHERALD_GPIO_SLIDE, 0, "SLIDE", EV_SW, 1, 20},
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{KEY_LEFT, HTCPLD_GPIO_LEFT_KBD, 1, "LEFT", EV_KEY, 1, 20},
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{KEY_RIGHT, HTCPLD_GPIO_RIGHT_KBD, 1, "RIGHT", EV_KEY, 1, 20},
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{KEY_UP, HTCPLD_GPIO_UP_KBD, 1, "UP", EV_KEY, 1, 20},
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{KEY_DOWN, HTCPLD_GPIO_DOWN_KBD, 1, "DOWN", EV_KEY, 1, 20},
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{KEY_LEFT, HTCPLD_GPIO_LEFT_DPAD, 1, "DLEFT", EV_KEY, 1, 20},
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{KEY_RIGHT, HTCPLD_GPIO_RIGHT_DPAD, 1, "DRIGHT", EV_KEY, 1, 20},
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{KEY_UP, HTCPLD_GPIO_UP_DPAD, 1, "DUP", EV_KEY, 1, 20},
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{KEY_DOWN, HTCPLD_GPIO_DOWN_DPAD, 1, "DDOWN", EV_KEY, 1, 20},
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{KEY_ENTER, HTCPLD_GPIO_ENTER_DPAD, 1, "DENTER", EV_KEY, 1, 20},
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};
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static struct gpio_keys_platform_data herald_gpio_keys_data = {
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.buttons = herald_gpio_keys_table,
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.nbuttons = ARRAY_SIZE(herald_gpio_keys_table),
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.rep = true,
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};
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static struct platform_device herald_gpiokeys_device = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &herald_gpio_keys_data,
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},
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};
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/* LEDs for the Herald. These connect to the HTCPLD GPIO device. */
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static struct gpio_led gpio_leds[] = {
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{"dpad", NULL, HTCPLD_GPIO_LED_DPAD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"kbd", NULL, HTCPLD_GPIO_LED_KBD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"vibrate", NULL, HTCPLD_GPIO_LED_VIBRATE, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"green_solid", NULL, HTCPLD_GPIO_LED_GREEN_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"green_flash", NULL, HTCPLD_GPIO_LED_GREEN_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"red_solid", "mmc0", HTCPLD_GPIO_LED_RED_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"red_flash", NULL, HTCPLD_GPIO_LED_RED_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"wifi", NULL, HTCPLD_GPIO_LED_WIFI, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"bt", NULL, HTCPLD_GPIO_LED_BT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"caps", NULL, HTCPLD_GPIO_LED_CAPS, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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{"alt", NULL, HTCPLD_GPIO_LED_ALT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
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};
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static struct gpio_led_platform_data gpio_leds_data = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device gpio_leds_device = {
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.name = "leds-gpio",
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.id = 0,
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||
|
|
.dev = {
|
||
|
|
.platform_data = &gpio_leds_data,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
/* HTC PLD chips */
|
||
|
|
|
||
|
|
static struct resource htcpld_resources[] = {
|
||
|
|
[0] = {
|
||
|
|
.flags = IORESOURCE_IRQ,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct htcpld_chip_platform_data htcpld_chips[] = {
|
||
|
|
[0] = {
|
||
|
|
.addr = 0x03,
|
||
|
|
.reset = 0x04,
|
||
|
|
.num_gpios = 8,
|
||
|
|
.gpio_out_base = HTCPLD_BASE(0, 0),
|
||
|
|
.gpio_in_base = HTCPLD_BASE(4, 0),
|
||
|
|
},
|
||
|
|
[1] = {
|
||
|
|
.addr = 0x04,
|
||
|
|
.reset = 0x8e,
|
||
|
|
.num_gpios = 8,
|
||
|
|
.gpio_out_base = HTCPLD_BASE(1, 0),
|
||
|
|
.gpio_in_base = HTCPLD_BASE(5, 0),
|
||
|
|
},
|
||
|
|
[2] = {
|
||
|
|
.addr = 0x05,
|
||
|
|
.reset = 0x80,
|
||
|
|
.num_gpios = 8,
|
||
|
|
.gpio_out_base = HTCPLD_BASE(2, 0),
|
||
|
|
.gpio_in_base = HTCPLD_BASE(6, 0),
|
||
|
|
.irq_base = HTCPLD_IRQ(0, 0),
|
||
|
|
.num_irqs = 8,
|
||
|
|
},
|
||
|
|
[3] = {
|
||
|
|
.addr = 0x06,
|
||
|
|
.reset = 0x40,
|
||
|
|
.num_gpios = 8,
|
||
|
|
.gpio_out_base = HTCPLD_BASE(3, 0),
|
||
|
|
.gpio_in_base = HTCPLD_BASE(7, 0),
|
||
|
|
.irq_base = HTCPLD_IRQ(1, 0),
|
||
|
|
.num_irqs = 8,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct htcpld_core_platform_data htcpld_pfdata = {
|
||
|
|
.int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
|
||
|
|
.int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
|
||
|
|
.i2c_adapter_id = 1,
|
||
|
|
|
||
|
|
.chip = htcpld_chips,
|
||
|
|
.num_chip = ARRAY_SIZE(htcpld_chips),
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device htcpld_device = {
|
||
|
|
.name = "i2c-htcpld",
|
||
|
|
.id = -1,
|
||
|
|
.resource = htcpld_resources,
|
||
|
|
.num_resources = ARRAY_SIZE(htcpld_resources),
|
||
|
|
.dev = {
|
||
|
|
.platform_data = &htcpld_pfdata,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
/* 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 const struct omap_lcd_config htcherald_lcd_config __initconst = {
|
||
|
|
.ctrl_name = "internal",
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device lcd_device = {
|
||
|
|
.name = "lcd_htcherald",
|
||
|
|
.id = -1,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* MMC Card */
|
||
|
|
#if IS_ENABLED(CONFIG_MMC_OMAP)
|
||
|
|
static struct omap_mmc_platform_data htc_mmc1_data = {
|
||
|
|
.nr_slots = 1,
|
||
|
|
.switch_slot = NULL,
|
||
|
|
.slots[0] = {
|
||
|
|
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
|
||
|
|
.name = "mmcblk",
|
||
|
|
.nomux = 1,
|
||
|
|
.wires = 4,
|
||
|
|
.switch_pin = -1,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct omap_mmc_platform_data *htc_mmc_data[1];
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Platform devices for the Herald */
|
||
|
|
static struct platform_device *devices[] __initdata = {
|
||
|
|
&kp_device,
|
||
|
|
&lcd_device,
|
||
|
|
&htcpld_device,
|
||
|
|
&gpio_leds_device,
|
||
|
|
&herald_gpiokeys_device,
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Touchscreen
|
||
|
|
*/
|
||
|
|
static const struct ads7846_platform_data htcherald_ts_platform_data = {
|
||
|
|
.model = 7846,
|
||
|
|
.keep_vref_on = 1,
|
||
|
|
.x_plate_ohms = 496,
|
||
|
|
.gpio_pendown = HTCHERALD_GPIO_TS,
|
||
|
|
.pressure_max = 10000,
|
||
|
|
.pressure_min = 5000,
|
||
|
|
.x_min = 528,
|
||
|
|
.x_max = 3760,
|
||
|
|
.y_min = 624,
|
||
|
|
.y_max = 3760,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct spi_board_info __initdata htcherald_spi_board_info[] = {
|
||
|
|
{
|
||
|
|
.modalias = "ads7846",
|
||
|
|
.platform_data = &htcherald_ts_platform_data,
|
||
|
|
.max_speed_hz = 2500000,
|
||
|
|
.bus_num = 2,
|
||
|
|
.chip_select = 1,
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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)
|
||
|
|
pr_err("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)
|
||
|
|
{
|
||
|
|
omap7xx_map_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");
|
||
|
|
|
||
|
|
/* Do board initialization before we register all the devices */
|
||
|
|
htcpld_resources[0].start = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
|
||
|
|
htcpld_resources[0].end = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
|
||
|
|
platform_add_devices(devices, ARRAY_SIZE(devices));
|
||
|
|
|
||
|
|
htcherald_disable_watchdog();
|
||
|
|
|
||
|
|
htcherald_usb_enable();
|
||
|
|
omap1_usb_init(&htcherald_usb_config);
|
||
|
|
|
||
|
|
htcherald_spi_board_info[0].irq = gpio_to_irq(HTCHERALD_GPIO_TS);
|
||
|
|
spi_register_board_info(htcherald_spi_board_info,
|
||
|
|
ARRAY_SIZE(htcherald_spi_board_info));
|
||
|
|
|
||
|
|
omap_register_i2c_bus(1, 100, NULL, 0);
|
||
|
|
|
||
|
|
#if IS_ENABLED(CONFIG_MMC_OMAP)
|
||
|
|
htc_mmc_data[0] = &htc_mmc1_data;
|
||
|
|
omap1_init_mmc(htc_mmc_data, 1);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
omapfb_set_lcd_config(&htcherald_lcd_config);
|
||
|
|
}
|
||
|
|
|
||
|
|
MACHINE_START(HERALD, "HTC Herald")
|
||
|
|
/* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
|
||
|
|
/* Maintainer: wing-linux.sourceforge.net */
|
||
|
|
.atag_offset = 0x100,
|
||
|
|
.map_io = htcherald_map_io,
|
||
|
|
.init_early = omap1_init_early,
|
||
|
|
.init_irq = omap1_init_irq,
|
||
|
|
.handle_irq = omap1_handle_irq,
|
||
|
|
.init_machine = htcherald_init,
|
||
|
|
.init_late = omap1_init_late,
|
||
|
|
.init_time = omap1_timer_init,
|
||
|
|
.restart = omap1_restart,
|
||
|
|
MACHINE_END
|