524 lines
13 KiB
C
524 lines
13 KiB
C
/*
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* linux/arch/mips/jz4740/board-qi_lb60.c
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*
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* QI_LB60 board support
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*
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* Copyright (c) 2009 Qi Hardware inc.,
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* Author: Xiangfu Liu <xiangfu@qi-hardware.com>
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* Copyright 2010, Lars-Peter Clausen <lars@metafoo.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 or later
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* as published by the Free Software Foundation.
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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/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/spi_gpio.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/pinctrl/pinconf-generic.h>
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#include <linux/power_supply.h>
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#include <linux/power/jz4740-battery.h>
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#include <linux/power/gpio-charger.h>
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#include <linux/pwm.h>
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#include <asm/mach-jz4740/gpio.h>
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#include <asm/mach-jz4740/jz4740_fb.h>
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#include <asm/mach-jz4740/jz4740_mmc.h>
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#include <asm/mach-jz4740/jz4740_nand.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/machine.h>
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#include <asm/mach-jz4740/platform.h>
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#include "clock.h"
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/* GPIOs */
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#define QI_LB60_GPIO_SD_CD JZ_GPIO_PORTD(0)
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#define QI_LB60_GPIO_SD_VCC_EN_N JZ_GPIO_PORTD(2)
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#define QI_LB60_GPIO_KEYOUT(x) (JZ_GPIO_PORTC(10) + (x))
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#define QI_LB60_GPIO_KEYIN(x) (JZ_GPIO_PORTD(18) + (x))
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#define QI_LB60_GPIO_KEYIN8 JZ_GPIO_PORTD(26)
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/* NAND */
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/* Early prototypes of the QI LB60 had only 1GB of NAND.
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* In order to support these devices as well the partition and ecc layout is
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* initialized depending on the NAND size */
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static struct mtd_partition qi_lb60_partitions_1gb[] = {
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{
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.name = "NAND BOOT partition",
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.offset = 0 * 0x100000,
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.size = 4 * 0x100000,
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},
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{
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.name = "NAND KERNEL partition",
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.offset = 4 * 0x100000,
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.size = 4 * 0x100000,
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},
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{
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.name = "NAND ROOTFS partition",
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.offset = 8 * 0x100000,
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.size = (504 + 512) * 0x100000,
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},
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};
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static struct mtd_partition qi_lb60_partitions_2gb[] = {
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{
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.name = "NAND BOOT partition",
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.offset = 0 * 0x100000,
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.size = 4 * 0x100000,
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},
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{
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.name = "NAND KERNEL partition",
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.offset = 4 * 0x100000,
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.size = 4 * 0x100000,
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},
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{
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.name = "NAND ROOTFS partition",
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.offset = 8 * 0x100000,
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.size = (504 + 512 + 1024) * 0x100000,
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},
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};
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static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *oobregion)
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{
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if (section)
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return -ERANGE;
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oobregion->length = 36;
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oobregion->offset = 6;
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if (mtd->oobsize == 128) {
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oobregion->length *= 2;
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oobregion->offset *= 2;
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}
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return 0;
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}
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static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section,
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struct mtd_oob_region *oobregion)
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{
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int eccbytes = 36, eccoff = 6;
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if (section > 1)
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return -ERANGE;
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if (mtd->oobsize == 128) {
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eccbytes *= 2;
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eccoff *= 2;
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}
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if (!section) {
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oobregion->offset = 2;
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oobregion->length = eccoff - 2;
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} else {
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oobregion->offset = eccoff + eccbytes;
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oobregion->length = mtd->oobsize - oobregion->offset;
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}
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return 0;
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}
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static const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = {
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.ecc = qi_lb60_ooblayout_ecc,
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.free = qi_lb60_ooblayout_free,
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};
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static void qi_lb60_nand_ident(struct platform_device *pdev,
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struct mtd_info *mtd, struct mtd_partition **partitions,
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int *num_partitions)
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{
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struct nand_chip *chip = mtd_to_nand(mtd);
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if (chip->page_shift == 12) {
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*partitions = qi_lb60_partitions_2gb;
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*num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
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} else {
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*partitions = qi_lb60_partitions_1gb;
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*num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
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}
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mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops);
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}
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static struct jz_nand_platform_data qi_lb60_nand_pdata = {
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.ident_callback = qi_lb60_nand_ident,
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.banks = { 1 },
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};
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static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
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.dev_id = "jz4740-nand.0",
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.table = {
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GPIO_LOOKUP("GPIOC", 30, "busy", 0),
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{ },
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},
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};
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/* Keyboard*/
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#define KEY_QI_QI KEY_F13
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#define KEY_QI_UPRED KEY_RIGHTALT
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#define KEY_QI_VOLUP KEY_VOLUMEUP
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#define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
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#define KEY_QI_FN KEY_LEFTCTRL
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static const uint32_t qi_lb60_keymap[] = {
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KEY(0, 0, KEY_F1), /* S2 */
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KEY(0, 1, KEY_F2), /* S3 */
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KEY(0, 2, KEY_F3), /* S4 */
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KEY(0, 3, KEY_F4), /* S5 */
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KEY(0, 4, KEY_F5), /* S6 */
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KEY(0, 5, KEY_F6), /* S7 */
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KEY(0, 6, KEY_F7), /* S8 */
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KEY(1, 0, KEY_Q), /* S10 */
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KEY(1, 1, KEY_W), /* S11 */
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KEY(1, 2, KEY_E), /* S12 */
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KEY(1, 3, KEY_R), /* S13 */
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KEY(1, 4, KEY_T), /* S14 */
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KEY(1, 5, KEY_Y), /* S15 */
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KEY(1, 6, KEY_U), /* S16 */
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KEY(1, 7, KEY_I), /* S17 */
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KEY(2, 0, KEY_A), /* S18 */
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KEY(2, 1, KEY_S), /* S19 */
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KEY(2, 2, KEY_D), /* S20 */
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KEY(2, 3, KEY_F), /* S21 */
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KEY(2, 4, KEY_G), /* S22 */
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KEY(2, 5, KEY_H), /* S23 */
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KEY(2, 6, KEY_J), /* S24 */
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KEY(2, 7, KEY_K), /* S25 */
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KEY(3, 0, KEY_ESC), /* S26 */
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KEY(3, 1, KEY_Z), /* S27 */
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KEY(3, 2, KEY_X), /* S28 */
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KEY(3, 3, KEY_C), /* S29 */
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KEY(3, 4, KEY_V), /* S30 */
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KEY(3, 5, KEY_B), /* S31 */
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KEY(3, 6, KEY_N), /* S32 */
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KEY(3, 7, KEY_M), /* S33 */
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KEY(4, 0, KEY_TAB), /* S34 */
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KEY(4, 1, KEY_CAPSLOCK), /* S35 */
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KEY(4, 2, KEY_BACKSLASH), /* S36 */
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KEY(4, 3, KEY_APOSTROPHE), /* S37 */
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KEY(4, 4, KEY_COMMA), /* S38 */
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KEY(4, 5, KEY_DOT), /* S39 */
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KEY(4, 6, KEY_SLASH), /* S40 */
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KEY(4, 7, KEY_UP), /* S41 */
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KEY(5, 0, KEY_O), /* S42 */
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KEY(5, 1, KEY_L), /* S43 */
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KEY(5, 2, KEY_EQUAL), /* S44 */
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KEY(5, 3, KEY_QI_UPRED), /* S45 */
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KEY(5, 4, KEY_SPACE), /* S46 */
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KEY(5, 5, KEY_QI_QI), /* S47 */
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KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
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KEY(5, 7, KEY_LEFT), /* S49 */
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KEY(6, 0, KEY_F8), /* S50 */
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KEY(6, 1, KEY_P), /* S51 */
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KEY(6, 2, KEY_BACKSPACE),/* S52 */
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KEY(6, 3, KEY_ENTER), /* S53 */
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KEY(6, 4, KEY_QI_VOLUP), /* S54 */
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KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
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KEY(6, 6, KEY_DOWN), /* S56 */
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KEY(6, 7, KEY_RIGHT), /* S57 */
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KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
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KEY(7, 1, KEY_LEFTALT), /* S59 */
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KEY(7, 2, KEY_QI_FN), /* S60 */
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};
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static const struct matrix_keymap_data qi_lb60_keymap_data = {
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.keymap = qi_lb60_keymap,
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.keymap_size = ARRAY_SIZE(qi_lb60_keymap),
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};
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static const unsigned int qi_lb60_keypad_cols[] = {
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QI_LB60_GPIO_KEYOUT(0),
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QI_LB60_GPIO_KEYOUT(1),
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QI_LB60_GPIO_KEYOUT(2),
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QI_LB60_GPIO_KEYOUT(3),
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QI_LB60_GPIO_KEYOUT(4),
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QI_LB60_GPIO_KEYOUT(5),
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QI_LB60_GPIO_KEYOUT(6),
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QI_LB60_GPIO_KEYOUT(7),
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};
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static const unsigned int qi_lb60_keypad_rows[] = {
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QI_LB60_GPIO_KEYIN(0),
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QI_LB60_GPIO_KEYIN(1),
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QI_LB60_GPIO_KEYIN(2),
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QI_LB60_GPIO_KEYIN(3),
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QI_LB60_GPIO_KEYIN(4),
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QI_LB60_GPIO_KEYIN(5),
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QI_LB60_GPIO_KEYIN(6),
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QI_LB60_GPIO_KEYIN8,
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};
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static struct matrix_keypad_platform_data qi_lb60_pdata = {
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.keymap_data = &qi_lb60_keymap_data,
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.col_gpios = qi_lb60_keypad_cols,
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.row_gpios = qi_lb60_keypad_rows,
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.num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
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.num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
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.col_scan_delay_us = 10,
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.debounce_ms = 10,
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.wakeup = 1,
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.active_low = 1,
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};
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static struct platform_device qi_lb60_keypad = {
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.name = "matrix-keypad",
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.id = -1,
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.dev = {
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.platform_data = &qi_lb60_pdata,
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},
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};
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/* Display */
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static struct fb_videomode qi_lb60_video_modes[] = {
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{
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.name = "320x240",
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.xres = 320,
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.yres = 240,
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.refresh = 30,
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.left_margin = 140,
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.right_margin = 273,
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.upper_margin = 20,
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.lower_margin = 2,
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.hsync_len = 1,
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.vsync_len = 1,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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};
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static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
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.width = 60,
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.height = 45,
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.num_modes = ARRAY_SIZE(qi_lb60_video_modes),
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.modes = qi_lb60_video_modes,
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.bpp = 24,
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.lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
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.pixclk_falling_edge = 1,
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};
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struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = {
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.num_chipselect = 1,
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};
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static struct platform_device qi_lb60_spigpio_device = {
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.name = "spi_gpio",
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.id = 1,
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.dev = {
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.platform_data = &qi_lb60_spigpio_platform_data,
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},
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};
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static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = {
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.dev_id = "spi_gpio",
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.table = {
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GPIO_LOOKUP("GPIOC", 23,
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"sck", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("GPIOC", 22,
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"mosi", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("GPIOC", 21,
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"cs", GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static struct spi_board_info qi_lb60_spi_board_info[] = {
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{
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.modalias = "ili8960",
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.chip_select = 0,
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.bus_num = 1,
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.max_speed_hz = 30 * 1000,
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.mode = SPI_3WIRE,
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},
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};
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/* Battery */
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static struct jz_battery_platform_data qi_lb60_battery_pdata = {
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.gpio_charge = JZ_GPIO_PORTC(27),
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.gpio_charge_active_low = 1,
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.info = {
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.name = "battery",
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.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
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.voltage_max_design = 4200000,
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.voltage_min_design = 3600000,
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},
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};
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/* GPIO Key: power */
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static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
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[0] = {
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.code = KEY_POWER,
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.gpio = JZ_GPIO_PORTD(29),
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.active_low = 1,
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.desc = "Power",
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
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.nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
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.buttons = qi_lb60_gpio_keys_buttons,
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};
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static struct platform_device qi_lb60_gpio_keys = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &qi_lb60_gpio_keys_data,
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}
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};
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static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
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.gpio_card_detect = QI_LB60_GPIO_SD_CD,
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.gpio_read_only = -1,
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.gpio_power = QI_LB60_GPIO_SD_VCC_EN_N,
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.power_active_low = 1,
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};
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/* beeper */
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static struct pwm_lookup qi_lb60_pwm_lookup[] = {
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PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
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PWM_POLARITY_NORMAL),
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};
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static struct platform_device qi_lb60_pwm_beeper = {
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.name = "pwm-beeper",
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.id = -1,
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};
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/* charger */
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static char *qi_lb60_batteries[] = {
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"battery",
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};
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static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
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.name = "usb",
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.type = POWER_SUPPLY_TYPE_USB,
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.gpio = JZ_GPIO_PORTD(28),
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.gpio_active_low = 1,
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.supplied_to = qi_lb60_batteries,
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.num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
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};
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static struct platform_device qi_lb60_charger_device = {
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.name = "gpio-charger",
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.dev = {
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.platform_data = &qi_lb60_charger_pdata,
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},
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};
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/* audio */
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static struct platform_device qi_lb60_audio_device = {
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.name = "qi-lb60-audio",
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.id = -1,
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};
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static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
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.dev_id = "qi-lb60-audio",
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.table = {
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GPIO_LOOKUP("GPIOB", 29, "snd", 0),
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GPIO_LOOKUP("GPIOD", 4, "amp", 0),
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{ },
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},
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};
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static struct platform_device *jz_platform_devices[] __initdata = {
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&jz4740_udc_device,
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&jz4740_udc_xceiv_device,
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&jz4740_mmc_device,
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&jz4740_nand_device,
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&qi_lb60_keypad,
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&qi_lb60_spigpio_device,
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&jz4740_framebuffer_device,
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&jz4740_pcm_device,
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&jz4740_i2s_device,
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&jz4740_codec_device,
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&jz4740_adc_device,
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&jz4740_pwm_device,
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&jz4740_dma_device,
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&qi_lb60_gpio_keys,
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&qi_lb60_pwm_beeper,
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&qi_lb60_charger_device,
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&qi_lb60_audio_device,
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};
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static unsigned long pin_cfg_bias_disable[] = {
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PIN_CONFIG_BIAS_DISABLE,
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};
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static struct pinctrl_map pin_map[] __initdata = {
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/* NAND pin configuration */
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PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
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"10010000.jz4740-pinctrl", "nand", "nand-cs1"),
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/* fbdev pin configuration */
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PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_DEFAULT,
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"10010000.jz4740-pinctrl", "lcd", "lcd-8bit"),
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PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
|
|
"10010000.jz4740-pinctrl", "lcd", "lcd-no-pins"),
|
|
|
|
/* MMC pin configuration */
|
|
PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
|
|
"10010000.jz4740-pinctrl", "mmc", "mmc-1bit"),
|
|
PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
|
|
"10010000.jz4740-pinctrl", "mmc", "mmc-4bit"),
|
|
PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
|
|
"10010000.jz4740-pinctrl", "PD0", pin_cfg_bias_disable),
|
|
PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
|
|
"10010000.jz4740-pinctrl", "PD2", pin_cfg_bias_disable),
|
|
|
|
/* PWM pin configuration */
|
|
PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
|
|
"10010000.jz4740-pinctrl", "pwm4", "pwm4"),
|
|
};
|
|
|
|
|
|
static int __init qi_lb60_init_platform_devices(void)
|
|
{
|
|
jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
|
|
jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
|
|
jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
|
|
jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
|
|
|
|
gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
|
|
gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
|
|
gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
|
|
|
|
spi_register_board_info(qi_lb60_spi_board_info,
|
|
ARRAY_SIZE(qi_lb60_spi_board_info));
|
|
|
|
pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
|
|
pinctrl_register_mappings(pin_map, ARRAY_SIZE(pin_map));
|
|
|
|
return platform_add_devices(jz_platform_devices,
|
|
ARRAY_SIZE(jz_platform_devices));
|
|
|
|
}
|
|
|
|
static int __init qi_lb60_board_setup(void)
|
|
{
|
|
printk(KERN_INFO "Qi Hardware JZ4740 QI LB60 setup\n");
|
|
|
|
if (qi_lb60_init_platform_devices())
|
|
panic("Failed to initialize platform devices");
|
|
|
|
return 0;
|
|
}
|
|
arch_initcall(qi_lb60_board_setup);
|