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    Subject[RFC][PATCH 24/26] MIPS: JZ4740: Add qi_lb60 board support
    Date
    This patch adds support for the qi_lb60 (a.k.a QI Ben NanoNote) clamshell
    device.

    Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
    ---
    arch/mips/jz4740/Kconfig | 4 +
    arch/mips/jz4740/Makefile | 2 +
    arch/mips/jz4740/board-qi_lb60.c | 483 ++++++++++++++++++++++++++++++++++++++
    3 files changed, 489 insertions(+), 0 deletions(-)
    create mode 100644 arch/mips/jz4740/board-qi_lb60.c

    diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
    index 8a5e850..3e7141f 100644
    --- a/arch/mips/jz4740/Kconfig
    +++ b/arch/mips/jz4740/Kconfig
    @@ -1,6 +1,10 @@
    choice
    prompt "Machine type"
    depends on MACH_JZ4740
    + default JZ4740_QI_LB60
    +
    +config JZ4740_QI_LB60
    + bool "Qi Hardware Ben NanoNote"

    endchoice

    diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile
    index a803ccb..a604eae 100644
    --- a/arch/mips/jz4740/Makefile
    +++ b/arch/mips/jz4740/Makefile
    @@ -11,6 +11,8 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs.o

    # board specific support

    +obj-$(CONFIG_JZ4740_QI_LB60) += board-qi_lb60.o
    +
    # PM support

    obj-$(CONFIG_PM) += pm.o
    diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
    new file mode 100644
    index 0000000..cd7e065
    --- /dev/null
    +++ b/arch/mips/jz4740/board-qi_lb60.c
    @@ -0,0 +1,483 @@
    +/*
    + * 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-Petrer 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/input.h>
    +#include <linux/gpio_keys.h>
    +#include <linux/mtd/jz4740_nand.h>
    +#include <linux/jz4740_fb.h>
    +#include <linux/input/matrix_keypad.h>
    +#include <linux/mtd/jz4740_nand.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/mmc/jz4740_mmc.h>
    +
    +#include <linux/regulator/fixed.h>
    +#include <linux/regulator/machine.h>
    +
    +#include <linux/leds_pwm.h>
    +
    +#include <asm/mach-jz4740/platform.h>
    +
    +#include "clock.h"
    +
    +static bool is_avt2;
    +
    +/* 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 */
    +static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
    + .eccbytes = 36,
    + .eccpos = {
    + 6, 7, 8, 9, 10, 11, 12, 13,
    + 14, 15, 16, 17, 18, 19, 20, 21,
    + 22, 23, 24, 25, 26, 27, 28, 29,
    + 30, 31, 32, 33, 34, 35, 36, 37,
    + 38, 39, 40, 41
    + },
    + .oobfree = {
    + { .offset = 2, .length = 4 },
    + { .offset = 42, .length = 22 }
    + },
    +};
    +
    +/* Early prototypes of the QI LB60 had only 1GB of NAND.
    + * In order to support these devices aswell the partition and ecc layout is
    + * initalized 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 nand_ecclayout qi_lb60_ecclayout_2gb = {
    + .eccbytes = 72,
    + .eccpos = {
    + 12, 13, 14, 15, 16, 17, 18, 19,
    + 20, 21, 22, 23, 24, 25, 26, 27,
    + 28, 29, 30, 31, 32, 33, 34, 35,
    + 36, 37, 38, 39, 40, 41, 42, 43,
    + 44, 45, 46, 47, 48, 49, 50, 51,
    + 52, 53, 54, 55, 56, 57, 58, 59,
    + 60, 61, 62, 63, 64, 65, 66, 67,
    + 68, 69, 70, 71, 72, 73, 74, 75,
    + 76, 77, 78, 79, 80, 81, 82, 83
    + },
    + .oobfree = {
    + { .offset = 2, .length = 10 },
    + { .offset = 84, .length = 44 },
    + },
    +};
    +
    +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 void qi_lb60_nand_ident(struct platform_device *pdev,
    + struct nand_chip *chip, struct mtd_partition **partitions,
    + int *num_partitions)
    +{
    + if (chip->page_shift == 12) {
    + chip->ecc.layout = &qi_lb60_ecclayout_2gb;
    + *partitions = qi_lb60_partitions_2gb;
    + *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
    + } else {
    + chip->ecc.layout = &qi_lb60_ecclayout_1gb;
    + *partitions = qi_lb60_partitions_1gb;
    + *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
    + }
    +}
    +
    +static struct jz_nand_platform_data qi_lb60_nand_pdata = {
    + .ident_callback = qi_lb60_nand_ident,
    + .busy_gpio = 94,
    +};
    +
    +/* 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(7),
    + 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,
    +};
    +
    +/* OHCI */
    +static struct regulator_consumer_supply avt2_usb_regulator_consumer =
    + REGULATOR_SUPPLY("vbus", "jz4740-ohci");
    +
    +static struct regulator_init_data avt2_usb_regulator_init_data = {
    + .num_consumer_supplies = 1,
    + .consumer_supplies = &avt2_usb_regulator_consumer,
    + .constraints = {
    + .name = "USB power",
    + .min_uV = 5000000,
    + .max_uV = 5000000,
    + .valid_modes_mask = REGULATOR_MODE_NORMAL,
    + .valid_ops_mask = REGULATOR_CHANGE_STATUS,
    + },
    +};
    +
    +static struct fixed_voltage_config avt2_usb_regulator_data = {
    + .supply_name = "USB power",
    + .microvolts = 5000000,
    + .gpio = JZ_GPIO_PORTB(17),
    + .init_data = &avt2_usb_regulator_init_data,
    +};
    +
    +static struct platform_device avt2_usb_regulator_device = {
    + .name = "reg-fixed-voltage",
    + .id = -1,
    + .dev = {
    + .platform_data = &avt2_usb_regulator_data,
    + }
    +};
    +
    +/* pizo */
    +static struct led_pwm qi_lb60_pizo_led = {
    + .name = "nanonote::pizo",
    + .pwm_id = 4,
    + .max_brightness = 255,
    + .pwm_period_ns = 1000000,
    +};
    +
    +static struct led_pwm_platform_data qi_lb60_pizo_data = {
    + .num_leds = 1,
    + .leds = &qi_lb60_pizo_led,
    +};
    +
    +static struct platform_device qi_lb60_pizo_device = {
    + .name = "leds_pwm",
    + .id = -1,
    + .dev = {
    + .platform_data = &qi_lb60_pizo_data,
    + }
    +};
    +
    +static struct platform_device *jz_platform_devices[] __initdata = {
    + &jz4740_udc_device,
    + &jz4740_mmc_device,
    + &jz4740_nand_device,
    + &qi_lb60_keypad,
    + &spigpio_device,
    + &jz4740_framebuffer_device,
    + &jz4740_i2s_device,
    + &jz4740_codec_device,
    + &jz4740_rtc_device,
    + &jz4740_adc_device,
    + &jz4740_battery_device,
    + &qi_lb60_gpio_keys,
    + &qi_lb60_pizo_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 themselfs. */
    + 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_battery_device.dev.platform_data = &qi_lb60_battery_pdata;
    + jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
    +
    + jz4740_serial_device_register();
    +
    + spi_register_board_info(qi_lb60_spi_board_info,
    + ARRAY_SIZE(qi_lb60_spi_board_info));
    +
    + if (is_avt2) {
    + platform_device_register(&avt2_usb_regulator_device);
    + platform_device_register(&jz4740_usb_ohci_device);
    + }
    +
    + return platform_add_devices(jz_platform_devices,
    + ARRAY_SIZE(jz_platform_devices));
    +
    +}
    +
    +struct jz4740_clock_board_data jz4740_clock_bdata = {
    + .ext_rate = 12000000,
    + .rtc_rate = 32768,
    +};
    +
    +static __init int board_avt2(char *str)
    +{
    + qi_lb60_mmc_pdata.card_detect_active_low = 1;
    + is_avt2 = true;
    +
    + return 1;
    +}
    +__setup("avt2", board_avt2);
    +
    +static int __init qi_lb60_board_setup(void)
    +{
    + printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
    + is_avt2 ? "AVT2" : "LB60");
    +
    + board_gpio_setup();
    +
    + if (qi_lb60_init_platform_devices())
    + panic("Failed to initalize platform devices\n");
    +
    + return 0;
    +}
    +arch_initcall(qi_lb60_board_setup);
    --
    1.5.6.5


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