[ARM] MINI2440: Add machine support

The MINI2440 is a chinese made s3c2440 development board with
a large set of peripherals.
This patch provides machine support for almost all the features
of the board.

Since it can come with various "options" fitted, a kernel parameter
is used to specify the lcd size, backlight control and touchscreen.

Signed-off-by: Michel Pollet <buserror@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

3 files changed, 717 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig
index 5df73cbf2b40..8cfeaec37306 100644
--- a/arch/arm/mach-s3c2440/Kconfig
+++ b/arch/arm/mach-s3c2440/Kconfig
@@ -84,5 +84,15 @@ config MACH_AT2440EVB
         help
           Say Y here if you are using the AT2440EVB development board
 
+config MACH_MINI2440
+        bool "MINI2440 development board"
+        select CPU_S3C2440
+        select EEPROM_AT24
+        select LEDS_TRIGGER_BACKLIGHT
+        select SND_S3C24XX_SOC_S3C24XX_UDA134X
+        help
+          Say Y here to select support for the MINI2440. Is a 10cm x 10cm board
+          available via various sources. It can come with a 3.5" or 7" touch LCD.
+
 endmenu
 
diff --git a/arch/arm/mach-s3c2440/Makefile b/arch/arm/mach-s3c2440/Makefile
index 0b4440e79b90..bfadcf684a2a 100644
--- a/arch/arm/mach-s3c2440/Makefile
+++ b/arch/arm/mach-s3c2440/Makefile
@@ -22,3 +22,4 @@ obj-$(CONFIG_MACH_RX3715)	+= mach-rx3715.o
 obj-$(CONFIG_ARCH_S3C2440)      += mach-smdk2440.o
 obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o
 obj-$(CONFIG_MACH_AT2440EVB) += mach-at2440evb.o
+obj-$(CONFIG_MACH_MINI2440) += mach-mini2440.o
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
new file mode 100644
index 000000000000..eb4b24501a9f
--- /dev/null
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -0,0 +1,706 @@
+/* linux/arch/arm/mach-s3c2440/mach-mini2440.c
+ *
+ * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
+ *      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
+ *      and modifications by SBZ <sbz@spgui.org> and
+ *      Weibing <http://weibing.blogbus.com> and
+ *      Michel Pollet <buserror@gmail.com>
+ *
+ * For product information, visit http://code.google.com/p/mini2440/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/serial_core.h>
+#include <linux/dm9000.h>
+#include <linux/i2c/at24.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_keys.h>
+#include <linux/i2c.h>
+#include <linux/mmc/host.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/fb.h>
+#include <asm/mach-types.h>
+
+#include <plat/regs-serial.h>
+#include <mach/regs-gpio.h>
+#include <mach/leds-gpio.h>
+#include <mach/regs-mem.h>
+#include <mach/regs-lcd.h>
+#include <mach/irqs.h>
+#include <plat/nand.h>
+#include <plat/iic.h>
+#include <plat/mci.h>
+#include <plat/udc.h>
+
+#include <plat/regs-serial.h>
+#include <mach/regs-gpio.h>
+#include <mach/regs-mem.h>
+#include <mach/regs-lcd.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
+#include <plat/clock.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+#include <sound/s3c24xx_uda134x.h>
+
+#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
+
+static struct map_desc mini2440_iodesc[] __initdata = {
+        /* nothing to declare, move along */
+};
+
+#define UCON S3C2410_UCON_DEFAULT
+#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
+#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+
+
+static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
+        [0] = {
+                .hwport      = 0,
+                .flags       = 0,
+                .ucon        = UCON,
+                .ulcon       = ULCON,
+                .ufcon       = UFCON,
+        },
+        [1] = {
+                .hwport      = 1,
+                .flags       = 0,
+                .ucon        = UCON,
+                .ulcon       = ULCON,
+                .ufcon       = UFCON,
+        },
+        [2] = {
+                .hwport      = 2,
+                .flags       = 0,
+                .ucon        = UCON,
+                .ulcon       = ULCON,
+                .ufcon       = UFCON,
+        },
+};
+
+/* USB device UDC support */
+
+static void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
+{
+        pr_debug("udc: pullup(%d)\n", cmd);
+
+        switch (cmd) {
+                case S3C2410_UDC_P_ENABLE :
+                        s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
+                        break;
+                case S3C2410_UDC_P_DISABLE :
+                        s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
+                        break;
+                case S3C2410_UDC_P_RESET :
+                        break;
+                default:
+                        break;
+        }
+}
+
+static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
+        .udc_command            = mini2440_udc_pullup,
+};
+
+
+/* LCD timing and setup */
+
+/*
+ * This macro simplifies the table bellow
+ */
+#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
+                        _yres,margin_top,margin_bottom,vsync, refresh) \
+        .width = _xres, \
+        .xres = _xres, \
+        .height = _yres, \
+        .yres = _yres, \
+        .left_margin    = margin_left,  \
+        .right_margin   = margin_right, \
+        .upper_margin   = margin_top,   \
+        .lower_margin   = margin_bottom,        \
+        .hsync_len      = hsync,        \
+        .vsync_len      = vsync,        \
+        .pixclock       = ((_clock*100000000000LL) /    \
+                           ((refresh) * \
+                           (hsync + margin_left + _xres + margin_right) * \
+                           (vsync + margin_top + _yres + margin_bottom))), \
+        .bpp            = 16,\
+        .type           = (S3C2410_LCDCON1_TFT16BPP |\
+                           S3C2410_LCDCON1_TFT)
+
+struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
+        [0] = { /* mini2440 + 3.5" TFT + touchscreen */
+                _LCD_DECLARE(
+                        7,                      /* The 3.5 is quite fast */
+                        240, 21, 38, 6,         /* x timing */
+                        320, 4, 4, 2,           /* y timing */
+                        60),                    /* refresh rate */
+                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
+                                   S3C2410_LCDCON5_INVVLINE |
+                                   S3C2410_LCDCON5_INVVFRAME |
+                                   S3C2410_LCDCON5_INVVDEN |
+                                   S3C2410_LCDCON5_PWREN),
+        },
+        [1] = { /* mini2440 + 7" TFT + touchscreen */
+                _LCD_DECLARE(
+                        10,                     /* the 7" runs slower */
+                        800, 40, 40, 48,        /* x timing */
+                        480, 29, 3, 3,          /* y timing */
+                        50),                    /* refresh rate */
+                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
+                                   S3C2410_LCDCON5_INVVLINE |
+                                   S3C2410_LCDCON5_INVVFRAME |
+                                   S3C2410_LCDCON5_PWREN),
+        },
+        /* The VGA shield can outout at several resolutions. All share 
+         * the same timings, however, anything smaller than 1024x768
+         * will only be displayed in the top left corner of a 1024x768
+         * XGA output unless you add optional dip switches to the shield.
+         * Therefore timings for other resolutions have been ommited here.
+         */
+        [2] = {
+                _LCD_DECLARE(
+                        10,
+                        1024, 1, 2, 2,          /* y timing */
+                        768, 200, 16, 16,       /* x timing */
+                        24),    /* refresh rate, maximum stable,
+                                 tested with the FPGA shield */
+                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
+                                   S3C2410_LCDCON5_HWSWP),
+        },
+};
+
+/* todo - put into gpio header */
+
+#define S3C2410_GPCCON_MASK(x)  (3 << ((x) * 2))
+#define S3C2410_GPDCON_MASK(x)  (3 << ((x) * 2))
+
+struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
+        .displays        = &mini2440_lcd_cfg[0], /* not constant! see init */
+        .num_displays    = 1,
+        .default_display = 0,
+
+        /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
+         * and disable the pull down resistors on pins we are using for LCD
+         * data. */
+
+        .gpcup          = (0xf << 1) | (0x3f << 10),
+
+        .gpccon         = (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
+                           S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
+                           S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
+                           S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
+                           S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),
+
+        .gpccon_mask    = (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
+                           S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
+                           S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
+                           S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
+                           S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
+
+        .gpdup          = (0x3f << 2) | (0x3f << 10),
+
+        .gpdcon         = (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
+                           S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
+                           S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
+                           S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
+                           S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
+                           S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
+
+        .gpdcon_mask    = (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
+                           S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
+                           S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
+                           S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
+                           S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
+                           S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
+};
+
+/* MMC/SD  */
+
+static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
+   .gpio_detect   = S3C2410_GPG(8),
+   .gpio_wprotect = S3C2410_GPH(8),
+   .set_power     = NULL,
+   .ocr_avail     = MMC_VDD_32_33|MMC_VDD_33_34,
+};
+
+/* NAND Flash on MINI2440 board */
+
+static struct mtd_partition mini2440_default_nand_part[] __initdata = {
+        [0] = {
+                .name   = "u-boot",
+                .size   = SZ_256K,
+                .offset = 0,
+        },
+        [1] = {
+                .name   = "u-boot-env",
+                .size   = SZ_128K,
+                .offset = SZ_256K,
+        },
+        [2] = {
+                .name   = "kernel",
+                /* 5 megabytes, for a kernel with no modules
+                 * or a uImage with a ramdisk attached */
+                .size   = 0x00500000,
+                .offset = SZ_256K + SZ_128K,
+        },
+        [3] = {
+                .name   = "root",
+                .offset = SZ_256K + SZ_128K + 0x00500000,
+                .size   = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
+        [0] = {
+                .name           = "nand",
+                .nr_chips       = 1,
+                .nr_partitions  = ARRAY_SIZE(mini2440_default_nand_part),
+                .partitions     = mini2440_default_nand_part,
+        },
+};
+
+static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
+        .tacls          = 0,
+        .twrph0         = 25,
+        .twrph1         = 15,
+        .nr_sets        = ARRAY_SIZE(mini2440_nand_sets),
+        .sets           = mini2440_nand_sets,
+        .ignore_unset_ecc = 1,
+};
+
+/* DM9000AEP 10/100 ethernet controller */
+
+static struct resource mini2440_dm9k_resource[] __initdata = {
+        [0] = {
+                .start = MACH_MINI2440_DM9K_BASE,
+                .end   = MACH_MINI2440_DM9K_BASE + 3,
+                .flags = IORESOURCE_MEM
+        },
+        [1] = {
+                .start = MACH_MINI2440_DM9K_BASE + 4,
+                .end   = MACH_MINI2440_DM9K_BASE + 7,
+                .flags = IORESOURCE_MEM
+        },
+        [2] = {
+                .start = IRQ_EINT7,
+                .end   = IRQ_EINT7,
+                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+        }
+};
+
+/*
+ * The DM9000 has no eeprom, and it's MAC address is set by
+ * the bootloader before starting the kernel.
+ */
+static struct dm9000_plat_data mini2440_dm9k_pdata __initdata = {
+        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
+};
+
+static struct platform_device mini2440_device_eth __initdata = {
+        .name           = "dm9000",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(mini2440_dm9k_resource),
+        .resource       = mini2440_dm9k_resource,
+        .dev            = {
+                .platform_data  = &mini2440_dm9k_pdata,
+        },
+};
+
+/*  CON5
+ *      +--+     /-----\
+ *      |  |    |       |
+ *      |  |    |  BAT  |
+ *      |  |     \_____/
+ *      |  |
+ *      |  |  +----+  +----+
+ *      |  |  | K5 |  | K1 |
+ *      |  |  +----+  +----+
+ *      |  |  +----+  +----+
+ *      |  |  | K4 |  | K2 |
+ *      |  |  +----+  +----+
+ *      |  |  +----+  +----+
+ *      |  |  | K6 |  | K3 |
+ *      |  |  +----+  +----+
+ *        .....
+ */
+static struct gpio_keys_button mini2440_buttons[] __initdata = {
+        {
+                .gpio           = S3C2410_GPG(0),               /* K1 */
+                .code           = KEY_F1,
+                .desc           = "Button 1",
+                .active_low     = 1,
+        },
+        {
+                .gpio           = S3C2410_GPG(3),               /* K2 */
+                .code           = KEY_F2,
+                .desc           = "Button 2",
+                .active_low     = 1,
+        },
+        {
+                .gpio           = S3C2410_GPG(5),               /* K3 */
+                .code           = KEY_F3,
+                .desc           = "Button 3",
+                .active_low     = 1,
+        },
+        {
+                .gpio           = S3C2410_GPG(6),               /* K4 */
+                .code           = KEY_POWER,
+                .desc           = "Power",
+                .active_low     = 1,
+        },
+        {
+                .gpio           = S3C2410_GPG(7),               /* K5 */
+                .code           = KEY_F5,
+                .desc           = "Button 5",
+                .active_low     = 1,
+        },
+#if 0
+        /* this pin is also known as TCLK1 and seems to already
+         * marked as "in use" somehow in the kernel -- possibly wrongly */
+        {
+                .gpio           = S3C2410_GPG(11),      /* K6 */
+                .code           = KEY_F6,
+                .desc           = "Button 6",
+                .active_low     = 1,
+        },
+#endif
+};
+
+static struct gpio_keys_platform_data mini2440_button_data __initdata = {
+        .buttons        = mini2440_buttons,
+        .nbuttons       = ARRAY_SIZE(mini2440_buttons),
+};
+
+static struct platform_device mini2440_button_device __initdata = {
+        .name           = "gpio-keys",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &mini2440_button_data,
+        }
+};
+
+/* LEDS */
+
+static struct s3c24xx_led_platdata mini2440_led1_pdata __initdata = {
+        .name           = "led1",
+        .gpio           = S3C2410_GPB(5),
+        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+        .def_trigger    = "heartbeat",
+};
+
+static struct s3c24xx_led_platdata mini2440_led2_pdata __initdata = {
+        .name           = "led2",
+        .gpio           = S3C2410_GPB(6),
+        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+        .def_trigger    = "nand-disk",
+};
+
+static struct s3c24xx_led_platdata mini2440_led3_pdata __initdata = {
+        .name           = "led3",
+        .gpio           = S3C2410_GPB(7),
+        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+        .def_trigger    = "mmc0",
+};
+
+static struct s3c24xx_led_platdata mini2440_led4_pdata __initdata = {
+        .name           = "led4",
+        .gpio           = S3C2410_GPB(8),
+        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+        .def_trigger    = "",
+};
+
+static struct s3c24xx_led_platdata mini2440_led_backlight_pdata __initdata = {
+        .name           = "backlight",
+        .gpio           = S3C2410_GPG(4),
+        .def_trigger    = "backlight",
+};
+
+static struct platform_device mini2440_led1 __initdata = {
+        .name           = "s3c24xx_led",
+        .id             = 1,
+        .dev            = {
+                .platform_data  = &mini2440_led1_pdata,
+        },
+};
+
+static struct platform_device mini2440_led2 __initdata = {
+        .name           = "s3c24xx_led",
+        .id             = 2,
+        .dev            = {
+                .platform_data  = &mini2440_led2_pdata,
+        },
+};
+
+static struct platform_device mini2440_led3 __initdata = {
+        .name           = "s3c24xx_led",
+        .id             = 3,
+        .dev            = {
+                .platform_data  = &mini2440_led3_pdata,
+        },
+};
+
+static struct platform_device mini2440_led4 __initdata = {
+        .name           = "s3c24xx_led",
+        .id             = 4,
+        .dev            = {
+                .platform_data  = &mini2440_led4_pdata,
+        },
+};
+
+static struct platform_device mini2440_led_backlight __initdata = {
+        .name           = "s3c24xx_led",
+        .id             = 5,
+        .dev            = {
+                .platform_data  = &mini2440_led_backlight_pdata,
+        },
+};
+
+/* AUDIO */
+
+static struct s3c24xx_uda134x_platform_data mini2440_audio_pins __initdata = {
+        .l3_clk = S3C2410_GPB(4),
+        .l3_mode = S3C2410_GPB(2),
+        .l3_data = S3C2410_GPB(3),
+        .model = UDA134X_UDA1341
+};
+
+static struct platform_device mini2440_audio __initdata = {
+        .name           = "s3c24xx_uda134x",
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &mini2440_audio_pins,
+        },
+};
+
+/*
+ * I2C devices
+ */
+static struct at24_platform_data at24c08 = {
+        .byte_len       = SZ_8K / 8,
+        .page_size      = 16,
+};
+
+static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
+        {
+                I2C_BOARD_INFO("24c08", 0x50),
+                .platform_data = &at24c08,
+        },
+};
+
+static struct platform_device *mini2440_devices[] __initdata = {
+        &s3c_device_usb,
+        &s3c_device_wdt,
+/*      &s3c_device_adc,*/ /* ADC doesn't like living with touchscreen ! */
+        &s3c_device_i2c0,
+        &s3c_device_rtc,
+        &s3c_device_usbgadget,
+        &mini2440_device_eth,
+        &mini2440_led1,
+        &mini2440_led2,
+        &mini2440_led3,
+        &mini2440_led4,
+        &mini2440_button_device,
+        &s3c_device_nand,
+        &s3c_device_sdi,
+        &s3c_device_iis,
+        &mini2440_audio,
+/*      &s3c_device_timer[0],*/ /* buzzer pwm, no API for it */
+        /* remaining devices are optional */
+};
+
+static void __init mini2440_map_io(void)
+{
+        s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
+        s3c24xx_init_clocks(12000000);
+        s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
+
+        s3c_device_nand.dev.platform_data = &mini2440_nand_info;
+        s3c_device_sdi.dev.platform_data = &mini2440_mmc_cfg;
+}
+
+/*
+ * mini2440_features string
+ *
+ * t = Touchscreen present
+ * b = backlight control
+ * c = camera [TODO]
+ * 0-9 LCD configuration
+ *
+ */
+static char mini2440_features_str[12] __initdata = "0tb";
+
+static int __init mini2440_features_setup(char *str)
+{
+        if (str)
+                strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
+        return 1;
+}
+
+__setup("mini2440=", mini2440_features_setup);
+
+#define FEATURE_SCREEN (1 << 0)
+#define FEATURE_BACKLIGHT (1 << 1)
+#define FEATURE_TOUCH (1 << 2)
+#define FEATURE_CAMERA (1 << 3)
+
+struct mini2440_features_t {
+        int count;
+        int done;
+        int lcd_index;
+        struct platform_device *optional[8];
+};
+
+static void mini2440_parse_features(
+                struct mini2440_features_t * features,
+                const char * features_str )
+{
+        const char * fp = features_str;
+
+        features->count = 0;
+        features->done = 0;
+        features->lcd_index = -1;
+
+        while (*fp) {
+                char f = *fp++;
+
+                switch (f) {
+                case '0'...'9': /* tft screen */
+                        if (features->done & FEATURE_SCREEN) {
+                                printk(KERN_INFO "MINI2440: '%c' ignored, "
+                                        "screen type already set\n", f);
+                        } else {
+                                int li = f - '0';
+                                if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
+                                        printk(KERN_INFO "MINI2440: "
+                                                "'%c' out of range LCD mode\n", f);
+                                else {
+                                        features->optional[features->count++] =
+                                                        &s3c_device_lcd;
+                                        features->lcd_index = li;
+                                }
+                        }
+                        features->done |= FEATURE_SCREEN;
+                        break;
+                case 'b':
+                        if (features->done & FEATURE_BACKLIGHT)
+                                printk(KERN_INFO "MINI2440: '%c' ignored, "
+                                        "backlight already set\n", f);
+                        else {
+                                features->optional[features->count++] =
+                                                &mini2440_led_backlight;
+                        }
+                        features->done |= FEATURE_BACKLIGHT;
+                        break;
+                case 't':
+                        printk(KERN_INFO "MINI2440: '%c' ignored, "
+                                "touchscreen not compiled in\n", f);
+                        break;
+                case 'c':
+                        if (features->done & FEATURE_CAMERA)
+                                printk(KERN_INFO "MINI2440: '%c' ignored, "
+                                        "camera already registered\n", f);
+                        else
+                                features->optional[features->count++] =
+                                        &s3c_device_camif;
+                        features->done |= FEATURE_CAMERA;
+                        break;
+                }
+        }
+}
+
+static void __init mini2440_init(void)
+{
+        struct mini2440_features_t features = { 0 };
+        int i;
+
+        printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
+                        mini2440_features_str);
+
+        /* Parse the feature string */
+        mini2440_parse_features(&features, mini2440_features_str);
+
+        /* turn LCD on */
+        s3c2410_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
+
+        /* Turn the backlight early on */
+        s3c2410_gpio_setpin(S3C2410_GPG(4), 1);
+        s3c2410_gpio_cfgpin(S3C2410_GPG(4), S3C2410_GPIO_OUTPUT);
+
+        /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
+        s3c2410_gpio_pullup(S3C2410_GPB(1), 0);
+        s3c2410_gpio_setpin(S3C2410_GPB(1), 0);
+        s3c2410_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT);
+
+        /* Make sure the D+ pullup pin is output */
+        s3c2410_gpio_cfgpin(S3C2410_GPC(5), S3C2410_GPIO_OUTPUT);
+
+        /* mark the key as input, without pullups (there is one on the board) */
+        for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
+                s3c2410_gpio_pullup(mini2440_buttons[i].gpio, 0);
+                s3c2410_gpio_cfgpin(mini2440_buttons[i].gpio,
+                                        S3C2410_GPIO_INPUT);
+        }
+        if (features.lcd_index != -1) {
+                int li;
+
+                mini2440_fb_info.displays =
+                        &mini2440_lcd_cfg[features.lcd_index];
+
+                printk(KERN_INFO "MINI2440: LCD");
+                for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
+                        if (li == features.lcd_index)
+                                printk(" [%d:%dx%d]", li,
+                                        mini2440_lcd_cfg[li].width,
+                                        mini2440_lcd_cfg[li].height);
+                        else
+                                printk(" %d:%dx%d", li,
+                                        mini2440_lcd_cfg[li].width,
+                                        mini2440_lcd_cfg[li].height);
+                printk("\n");
+                s3c24xx_fb_set_platdata(&mini2440_fb_info);
+        }
+        s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
+        s3c_i2c0_set_platdata(NULL);
+        i2c_register_board_info(0, mini2440_i2c_devs,
+                                ARRAY_SIZE(mini2440_i2c_devs));
+
+        platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
+
+        if (features.count)     /* the optional features */
+                platform_add_devices(features.optional, features.count);
+
+}
+
+
+MACHINE_START(MINI2440, "MINI2440")
+        /* Maintainer: Michel Pollet <buserror@gmail.com> */
+        .phys_io        = S3C2410_PA_UART,
+        .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
+        .boot_params    = S3C2410_SDRAM_PA + 0x100,
+        .map_io         = mini2440_map_io,
+        .init_machine   = mini2440_init,
+        .init_irq       = s3c24xx_init_irq,
+        .timer          = &s3c24xx_timer,
+MACHINE_END