NED
/
tegrakernel
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
tegrakernel/kernel/kernel-4.9/arch/mips/jz4740/board-qi_lb60.c

491 lines
12 KiB
C
Raw Blame History

/*
* linux/arch/mips/jz4740/board-qi_lb60.c
*
* QI_LB60 board support
*
* Copyright (c) 2009 Qi Hardware inc.,
* Author: Xiangfu Liu <xiangfu@qi-hardware.com>
* Copyright 2010, Lars-Peter Clausen <lars@metafoo.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or later
* as published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/input/matrix_keypad.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/power_supply.h>
#include <linux/power/jz4740-battery.h>
#include <linux/power/gpio-charger.h>
#include <linux/pwm.h>
#include <asm/mach-jz4740/gpio.h>
#include <asm/mach-jz4740/jz4740_fb.h>
#include <asm/mach-jz4740/jz4740_mmc.h>
#include <asm/mach-jz4740/jz4740_nand.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <asm/mach-jz4740/platform.h>
#include "clock.h"
/* GPIOs */
#define QI_LB60_GPIO_SD_CD JZ_GPIO_PORTD(0)
#define QI_LB60_GPIO_SD_VCC_EN_N JZ_GPIO_PORTD(2)
#define QI_LB60_GPIO_KEYOUT(x) (JZ_GPIO_PORTC(10) + (x))
#define QI_LB60_GPIO_KEYIN(x) (JZ_GPIO_PORTD(18) + (x))
#define QI_LB60_GPIO_KEYIN8 JZ_GPIO_PORTD(26)
/* NAND */
/* Early prototypes of the QI LB60 had only 1GB of NAND.
* In order to support these devices as well the partition and ecc layout is
* initialized depending on the NAND size */
static struct mtd_partition qi_lb60_partitions_1gb[] = {
{
.name = "NAND BOOT partition",
.offset = 0 * 0x100000,
.size = 4 * 0x100000,
},
{
.name = "NAND KERNEL partition",
.offset = 4 * 0x100000,
.size = 4 * 0x100000,
},
{
.name = "NAND ROOTFS partition",
.offset = 8 * 0x100000,
.size = (504 + 512) * 0x100000,
},
};
static struct mtd_partition qi_lb60_partitions_2gb[] = {
{
.name = "NAND BOOT partition",
.offset = 0 * 0x100000,
.size = 4 * 0x100000,
},
{
.name = "NAND KERNEL partition",
.offset = 4 * 0x100000,
.size = 4 * 0x100000,
},
{
.name = "NAND ROOTFS partition",
.offset = 8 * 0x100000,
.size = (504 + 512 + 1024) * 0x100000,
},
};
static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
if (section)
return -ERANGE;
oobregion->length = 36;
oobregion->offset = 6;
if (mtd->oobsize == 128) {
oobregion->length *= 2;
oobregion->offset *= 2;
}
return 0;
}
static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
int eccbytes = 36, eccoff = 6;
if (section > 1)
return -ERANGE;
if (mtd->oobsize == 128) {
eccbytes *= 2;
eccoff *= 2;
}
if (!section) {
oobregion->offset = 2;
oobregion->length = eccoff - 2;
} else {
oobregion->offset = eccoff + eccbytes;
oobregion->length = mtd->oobsize - oobregion->offset;
}
return 0;
}
static const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = {
.ecc = qi_lb60_ooblayout_ecc,
.free = qi_lb60_ooblayout_free,
};
static void qi_lb60_nand_ident(struct platform_device *pdev,
struct mtd_info *mtd, struct mtd_partition **partitions,
int *num_partitions)
{
struct nand_chip *chip = mtd_to_nand(mtd);
if (chip->page_shift == 12) {
*partitions = qi_lb60_partitions_2gb;
*num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
} else {
*partitions = qi_lb60_partitions_1gb;
*num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
}
mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops);
}
static struct jz_nand_platform_data qi_lb60_nand_pdata = {
.ident_callback = qi_lb60_nand_ident,
.banks = { 1 },
};
static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
.dev_id = "jz4740-nand.0",
.table = {
GPIO_LOOKUP("Bank C", 30, "busy", 0),
{ },
},
};
/* Keyboard*/
#define KEY_QI_QI KEY_F13
#define KEY_QI_UPRED KEY_RIGHTALT
#define KEY_QI_VOLUP KEY_VOLUMEUP
#define KEY_QI_VOLDOWN KEY_VOLUMEDOWN
#define KEY_QI_FN KEY_LEFTCTRL
static const uint32_t qi_lb60_keymap[] = {
KEY(0, 0, KEY_F1), /* S2 */
KEY(0, 1, KEY_F2), /* S3 */
KEY(0, 2, KEY_F3), /* S4 */
KEY(0, 3, KEY_F4), /* S5 */
KEY(0, 4, KEY_F5), /* S6 */
KEY(0, 5, KEY_F6), /* S7 */
KEY(0, 6, KEY_F7), /* S8 */
KEY(1, 0, KEY_Q), /* S10 */
KEY(1, 1, KEY_W), /* S11 */
KEY(1, 2, KEY_E), /* S12 */
KEY(1, 3, KEY_R), /* S13 */
KEY(1, 4, KEY_T), /* S14 */
KEY(1, 5, KEY_Y), /* S15 */
KEY(1, 6, KEY_U), /* S16 */
KEY(1, 7, KEY_I), /* S17 */
KEY(2, 0, KEY_A), /* S18 */
KEY(2, 1, KEY_S), /* S19 */
KEY(2, 2, KEY_D), /* S20 */
KEY(2, 3, KEY_F), /* S21 */
KEY(2, 4, KEY_G), /* S22 */
KEY(2, 5, KEY_H), /* S23 */
KEY(2, 6, KEY_J), /* S24 */
KEY(2, 7, KEY_K), /* S25 */
KEY(3, 0, KEY_ESC), /* S26 */
KEY(3, 1, KEY_Z), /* S27 */
KEY(3, 2, KEY_X), /* S28 */
KEY(3, 3, KEY_C), /* S29 */
KEY(3, 4, KEY_V), /* S30 */
KEY(3, 5, KEY_B), /* S31 */
KEY(3, 6, KEY_N), /* S32 */
KEY(3, 7, KEY_M), /* S33 */
KEY(4, 0, KEY_TAB), /* S34 */
KEY(4, 1, KEY_CAPSLOCK), /* S35 */
KEY(4, 2, KEY_BACKSLASH), /* S36 */
KEY(4, 3, KEY_APOSTROPHE), /* S37 */
KEY(4, 4, KEY_COMMA), /* S38 */
KEY(4, 5, KEY_DOT), /* S39 */
KEY(4, 6, KEY_SLASH), /* S40 */
KEY(4, 7, KEY_UP), /* S41 */
KEY(5, 0, KEY_O), /* S42 */
KEY(5, 1, KEY_L), /* S43 */
KEY(5, 2, KEY_EQUAL), /* S44 */
KEY(5, 3, KEY_QI_UPRED), /* S45 */
KEY(5, 4, KEY_SPACE), /* S46 */
KEY(5, 5, KEY_QI_QI), /* S47 */
KEY(5, 6, KEY_RIGHTCTRL), /* S48 */
KEY(5, 7, KEY_LEFT), /* S49 */
KEY(6, 0, KEY_F8), /* S50 */
KEY(6, 1, KEY_P), /* S51 */
KEY(6, 2, KEY_BACKSPACE),/* S52 */
KEY(6, 3, KEY_ENTER), /* S53 */
KEY(6, 4, KEY_QI_VOLUP), /* S54 */
KEY(6, 5, KEY_QI_VOLDOWN), /* S55 */
KEY(6, 6, KEY_DOWN), /* S56 */
KEY(6, 7, KEY_RIGHT), /* S57 */
KEY(7, 0, KEY_LEFTSHIFT), /* S58 */
KEY(7, 1, KEY_LEFTALT), /* S59 */
KEY(7, 2, KEY_QI_FN), /* S60 */
};
static const struct matrix_keymap_data qi_lb60_keymap_data = {
.keymap = qi_lb60_keymap,
.keymap_size = ARRAY_SIZE(qi_lb60_keymap),
};
static const unsigned int qi_lb60_keypad_cols[] = {
QI_LB60_GPIO_KEYOUT(0),
QI_LB60_GPIO_KEYOUT(1),
QI_LB60_GPIO_KEYOUT(2),
QI_LB60_GPIO_KEYOUT(3),
QI_LB60_GPIO_KEYOUT(4),
QI_LB60_GPIO_KEYOUT(5),
QI_LB60_GPIO_KEYOUT(6),
QI_LB60_GPIO_KEYOUT(7),
};
static const unsigned int qi_lb60_keypad_rows[] = {
QI_LB60_GPIO_KEYIN(0),
QI_LB60_GPIO_KEYIN(1),
QI_LB60_GPIO_KEYIN(2),
QI_LB60_GPIO_KEYIN(3),
QI_LB60_GPIO_KEYIN(4),
QI_LB60_GPIO_KEYIN(5),
QI_LB60_GPIO_KEYIN(6),
QI_LB60_GPIO_KEYIN8,
};
static struct matrix_keypad_platform_data qi_lb60_pdata = {
.keymap_data = &qi_lb60_keymap_data,
.col_gpios = qi_lb60_keypad_cols,
.row_gpios = qi_lb60_keypad_rows,
.num_col_gpios = ARRAY_SIZE(qi_lb60_keypad_cols),
.num_row_gpios = ARRAY_SIZE(qi_lb60_keypad_rows),
.col_scan_delay_us = 10,
.debounce_ms = 10,
.wakeup = 1,
.active_low = 1,
};
static struct platform_device qi_lb60_keypad = {
.name = "matrix-keypad",
.id = -1,
.dev = {
.platform_data = &qi_lb60_pdata,
},
};
/* Display */
static struct fb_videomode qi_lb60_video_modes[] = {
{
.name = "320x240",
.xres = 320,
.yres = 240,
.refresh = 30,
.left_margin = 140,
.right_margin = 273,
.upper_margin = 20,
.lower_margin = 2,
.hsync_len = 1,
.vsync_len = 1,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
};
static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
.width = 60,
.height = 45,
.num_modes = ARRAY_SIZE(qi_lb60_video_modes),
.modes = qi_lb60_video_modes,
.bpp = 24,
.lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
.pixclk_falling_edge = 1,
};
struct spi_gpio_platform_data spigpio_platform_data = {
.sck = JZ_GPIO_PORTC(23),
.mosi = JZ_GPIO_PORTC(22),
.miso = -1,
.num_chipselect = 1,
};
static struct platform_device spigpio_device = {
.name = "spi_gpio",
.id = 1,
.dev = {
.platform_data = &spigpio_platform_data,
},
};
static struct spi_board_info qi_lb60_spi_board_info[] = {
{
.modalias = "ili8960",
.controller_data = (void *)JZ_GPIO_PORTC(21),
.chip_select = 0,
.bus_num = 1,
.max_speed_hz = 30 * 1000,
.mode = SPI_3WIRE,
},
};
/* Battery */
static struct jz_battery_platform_data qi_lb60_battery_pdata = {
.gpio_charge = JZ_GPIO_PORTC(27),
.gpio_charge_active_low = 1,
.info = {
.name = "battery",
.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
.voltage_max_design = 4200000,
.voltage_min_design = 3600000,
},
};
/* GPIO Key: power */
static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
[0] = {
.code = KEY_POWER,
.gpio = JZ_GPIO_PORTD(29),
.active_low = 1,
.desc = "Power",
.wakeup = 1,
},
};
static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
.nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
.buttons = qi_lb60_gpio_keys_buttons,
};
static struct platform_device qi_lb60_gpio_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &qi_lb60_gpio_keys_data,
}
};
static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
.gpio_card_detect = QI_LB60_GPIO_SD_CD,
.gpio_read_only = -1,
.gpio_power = QI_LB60_GPIO_SD_VCC_EN_N,
.power_active_low = 1,
};
/* beeper */
static struct pwm_lookup qi_lb60_pwm_lookup[] = {
PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
PWM_POLARITY_NORMAL),
};
static struct platform_device qi_lb60_pwm_beeper = {
.name = "pwm-beeper",
.id = -1,
};
/* charger */
static char *qi_lb60_batteries[] = {
"battery",
};
static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
.name = "usb",
.type = POWER_SUPPLY_TYPE_USB,
.gpio = JZ_GPIO_PORTD(28),
.gpio_active_low = 1,
.supplied_to = qi_lb60_batteries,
.num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
};
static struct platform_device qi_lb60_charger_device = {
.name = "gpio-charger",
.dev = {
.platform_data = &qi_lb60_charger_pdata,
},
};
/* audio */
static struct platform_device qi_lb60_audio_device = {
.name = "qi-lb60-audio",
.id = -1,
};
static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
.dev_id = "qi-lb60-audio",
.table = {
GPIO_LOOKUP("Bank B", 29, "snd", 0),
GPIO_LOOKUP("Bank D", 4, "amp", 0),
{ },
},
};
static struct platform_device *jz_platform_devices[] __initdata = {
&jz4740_udc_device,
&jz4740_udc_xceiv_device,
&jz4740_mmc_device,
&jz4740_nand_device,
&qi_lb60_keypad,
&spigpio_device,
&jz4740_framebuffer_device,
&jz4740_pcm_device,
&jz4740_i2s_device,
&jz4740_codec_device,
&jz4740_rtc_device,
&jz4740_adc_device,
&jz4740_pwm_device,
&jz4740_dma_device,
&qi_lb60_gpio_keys,
&qi_lb60_pwm_beeper,
&qi_lb60_charger_device,
&qi_lb60_audio_device,
};
static void __init board_gpio_setup(void)
{
/* We only need to enable/disable pullup here for pins used in generic
* drivers. Everything else is done by the drivers themselves. */
jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
}
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);
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));
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");
board_gpio_setup();
if (qi_lb60_init_platform_devices())
panic("Failed to initialize platform devices");
return 0;
}
arch_initcall(qi_lb60_board_setup);
Reference in New Issue View Git Blame Copy Permalink