MIPS: JZ4740: Add qi_lb60 board support

Add support for the qi_lb60 (a.k.a QI Ben NanoNote) clamshell device.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1472/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 471 insertions, 0 deletions

diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
new file mode 100644
index 000000000000..5742bb4d78f4
--- /dev/null
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -0,0 +1,471 @@
+/*
+ * 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/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 <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 <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,
+        }
+};
+
+/* beeper */
+static struct platform_device qi_lb60_pwm_beeper = {
+        .name = "pwm-beeper",
+        .id = -1,
+        .dev = {
+                .platform_data = (void *)4,
+        },
+};
+
+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_pcm_device,
+        &jz4740_i2s_device,
+        &jz4740_codec_device,
+        &jz4740_rtc_device,
+        &jz4740_adc_device,
+        &qi_lb60_gpio_keys,
+        &qi_lb60_pwm_beeper,
+};
+
+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_adc_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);