[ARM] 5286/2: pxa: rename cm-x270* to cm-x2xx* to allow addition of cm-x255 support

Signed-off-by: Russ Dill <russ.dill@gmail.com>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 806 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
new file mode 100644
index 000000000000..598837798425
--- /dev/null
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -0,0 +1,806 @@
+/*
+ * linux/arch/arm/mach-pxa/cm-x270.c
+ *
+ * Copyright (C) 2007, 2008 CompuLab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ *
+ * 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/platform_device.h>
+#include <linux/sysdev.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include <linux/dm9000.h>
+#include <linux/rtc-v3020.h>
+#include <video/mbxfb.h>
+#include <linux/leds.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+
+#include <mach/pxa2xx-regs.h>
+#include <mach/mfp-pxa27x.h>
+#include <mach/pxa-regs.h>
+#include <mach/audio.h>
+#include <mach/pxafb.h>
+#include <mach/ohci.h>
+#include <mach/mmc.h>
+#include <mach/bitfield.h>
+
+#include <asm/hardware/it8152.h>
+
+#include "generic.h"
+#include "cm-x2xx-pci.h"
+
+/* virtual addresses for statically mapped regions */
+#define CMX270_VIRT_BASE        (0xe8000000)
+#define CMX270_IT8152_VIRT      (CMX270_VIRT_BASE)
+
+#define RTC_PHYS_BASE           (PXA_CS1_PHYS + (5 << 22))
+#define DM9000_PHYS_BASE        (PXA_CS1_PHYS + (6 << 22))
+
+/* GPIO IRQ usage */
+#define GPIO10_ETHIRQ           (10)
+#define GPIO22_IT8152_IRQ       (22)
+#define GPIO83_MMC_IRQ          (83)
+#define GPIO95_GFXIRQ           (95)
+
+#define CMX270_ETHIRQ           IRQ_GPIO(GPIO10_ETHIRQ)
+#define CMX270_IT8152_IRQ       IRQ_GPIO(GPIO22_IT8152_IRQ)
+#define CMX270_MMC_IRQ          IRQ_GPIO(GPIO83_MMC_IRQ)
+#define CMX270_GFXIRQ           IRQ_GPIO(GPIO95_GFXIRQ)
+
+/* MMC power enable */
+#define GPIO105_MMC_POWER       (105)
+
+static unsigned long cmx270_pin_config[] = {
+        /* AC'97 */
+        GPIO28_AC97_BITCLK,
+        GPIO29_AC97_SDATA_IN_0,
+        GPIO30_AC97_SDATA_OUT,
+        GPIO31_AC97_SYNC,
+        GPIO98_AC97_SYSCLK,
+        GPIO113_AC97_nRESET,
+
+        /* BTUART */
+        GPIO42_BTUART_RXD,
+        GPIO43_BTUART_TXD,
+        GPIO44_BTUART_CTS,
+        GPIO45_BTUART_RTS,
+
+        /* STUART */
+        GPIO46_STUART_RXD,
+        GPIO47_STUART_TXD,
+
+        /* MCI controller */
+        GPIO32_MMC_CLK,
+        GPIO112_MMC_CMD,
+        GPIO92_MMC_DAT_0,
+        GPIO109_MMC_DAT_1,
+        GPIO110_MMC_DAT_2,
+        GPIO111_MMC_DAT_3,
+
+        /* LCD */
+        GPIO58_LCD_LDD_0,
+        GPIO59_LCD_LDD_1,
+        GPIO60_LCD_LDD_2,
+        GPIO61_LCD_LDD_3,
+        GPIO62_LCD_LDD_4,
+        GPIO63_LCD_LDD_5,
+        GPIO64_LCD_LDD_6,
+        GPIO65_LCD_LDD_7,
+        GPIO66_LCD_LDD_8,
+        GPIO67_LCD_LDD_9,
+        GPIO68_LCD_LDD_10,
+        GPIO69_LCD_LDD_11,
+        GPIO70_LCD_LDD_12,
+        GPIO71_LCD_LDD_13,
+        GPIO72_LCD_LDD_14,
+        GPIO73_LCD_LDD_15,
+        GPIO74_LCD_FCLK,
+        GPIO75_LCD_LCLK,
+        GPIO76_LCD_PCLK,
+        GPIO77_LCD_BIAS,
+
+        /* I2C */
+        GPIO117_I2C_SCL,
+        GPIO118_I2C_SDA,
+
+        /* SSP1 */
+        GPIO23_SSP1_SCLK,
+        GPIO24_SSP1_SFRM,
+        GPIO25_SSP1_TXD,
+        GPIO26_SSP1_RXD,
+
+        /* SSP2 */
+        GPIO19_SSP2_SCLK,
+        GPIO14_SSP2_SFRM,
+        GPIO87_SSP2_TXD,
+        GPIO88_SSP2_RXD,
+
+        /* PC Card */
+        GPIO48_nPOE,
+        GPIO49_nPWE,
+        GPIO50_nPIOR,
+        GPIO51_nPIOW,
+        GPIO85_nPCE_1,
+        GPIO54_nPCE_2,
+        GPIO55_nPREG,
+        GPIO56_nPWAIT,
+        GPIO57_nIOIS16,
+
+        /* SDRAM and local bus */
+        GPIO15_nCS_1,
+        GPIO78_nCS_2,
+        GPIO79_nCS_3,
+        GPIO80_nCS_4,
+        GPIO33_nCS_5,
+        GPIO49_nPWE,
+        GPIO18_RDY,
+
+        /* GPIO */
+        GPIO0_GPIO      | WAKEUP_ON_EDGE_BOTH,
+        GPIO105_GPIO    | MFP_LPM_DRIVE_HIGH,   /* MMC/SD power */
+        GPIO53_GPIO,                            /* PC card reset */
+
+        /* NAND controls */
+        GPIO11_GPIO     | MFP_LPM_DRIVE_HIGH,   /* NAND CE# */
+        GPIO89_GPIO,                            /* NAND Ready/Busy */
+
+        /* interrupts */
+        GPIO10_GPIO,    /* DM9000 interrupt */
+        GPIO83_GPIO,    /* MMC card detect */
+};
+
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+static struct resource cmx270_dm9000_resource[] = {
+        [0] = {
+                .start = DM9000_PHYS_BASE,
+                .end   = DM9000_PHYS_BASE + 4,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = DM9000_PHYS_BASE + 8,
+                .end   = DM9000_PHYS_BASE + 8 + 500,
+                .flags = IORESOURCE_MEM,
+        },
+        [2] = {
+                .start = CMX270_ETHIRQ,
+                .end   = CMX270_ETHIRQ,
+                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+        }
+};
+
+static struct dm9000_plat_data cmx270_dm9000_platdata = {
+        .flags          = DM9000_PLATF_32BITONLY,
+};
+
+static struct platform_device cmx270_dm9000_device = {
+        .name           = "dm9000",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
+        .resource       = cmx270_dm9000_resource,
+        .dev            = {
+                .platform_data = &cmx270_dm9000_platdata,
+        }
+};
+
+static void __init cmx270_init_dm9000(void)
+{
+        platform_device_register(&cmx270_dm9000_device);
+}
+#else
+static inline void cmx270_init_dm9000(void) {}
+#endif
+
+/* UCB1400 touchscreen controller */
+#if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
+static struct platform_device cmx270_ts_device = {
+        .name           = "ucb1400_ts",
+        .id             = -1,
+};
+
+static void __init cmx270_init_touchscreen(void)
+{
+        platform_device_register(&cmx270_ts_device);
+}
+#else
+static inline void cmx270_init_touchscreen(void) {}
+#endif
+
+/* V3020 RTC */
+#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
+static struct resource cmx270_v3020_resource[] = {
+        [0] = {
+                .start = RTC_PHYS_BASE,
+                .end   = RTC_PHYS_BASE + 4,
+                .flags = IORESOURCE_MEM,
+        },
+};
+
+struct v3020_platform_data cmx270_v3020_pdata = {
+        .leftshift = 16,
+};
+
+static struct platform_device cmx270_rtc_device = {
+        .name           = "v3020",
+        .num_resources  = ARRAY_SIZE(cmx270_v3020_resource),
+        .resource       = cmx270_v3020_resource,
+        .id             = -1,
+        .dev            = {
+                .platform_data = &cmx270_v3020_pdata,
+        }
+};
+
+static void __init cmx270_init_rtc(void)
+{
+        platform_device_register(&cmx270_rtc_device);
+}
+#else
+static inline void cmx270_init_rtc(void) {}
+#endif
+
+/* CM-X270 LEDs */
+#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
+static struct gpio_led cmx270_leds[] = {
+        [0] = {
+                .name = "cm-x270:red",
+                .default_trigger = "nand-disk",
+                .gpio = 93,
+                .active_low = 1,
+        },
+        [1] = {
+                .name = "cm-x270:green",
+                .default_trigger = "heartbeat",
+                .gpio = 94,
+                .active_low = 1,
+        },
+};
+
+static struct gpio_led_platform_data cmx270_gpio_led_pdata = {
+        .num_leds = ARRAY_SIZE(cmx270_leds),
+        .leds = cmx270_leds,
+};
+
+static struct platform_device cmx270_led_device = {
+        .name           = "leds-gpio",
+        .id             = -1,
+        .dev            = {
+                .platform_data = &cmx270_gpio_led_pdata,
+        },
+};
+
+static void __init cmx270_init_leds(void)
+{
+        platform_device_register(&cmx270_led_device);
+}
+#else
+static inline void cmx270_init_leds(void) {}
+#endif
+
+/* 2700G graphics */
+#if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
+static u64 fb_dma_mask = ~(u64)0;
+
+static struct resource cmx270_2700G_resource[] = {
+        /* frame buffer memory including ODFB and External SDRAM */
+        [0] = {
+                .start = PXA_CS2_PHYS,
+                .end   = PXA_CS2_PHYS + 0x01ffffff,
+                .flags = IORESOURCE_MEM,
+        },
+        /* Marathon registers */
+        [1] = {
+                .start = PXA_CS2_PHYS + 0x03fe0000,
+                .end   = PXA_CS2_PHYS + 0x03ffffff,
+                .flags = IORESOURCE_MEM,
+        },
+};
+
+static unsigned long save_lcd_regs[10];
+
+static int cmx270_marathon_probe(struct fb_info *fb)
+{
+        /* save PXA-270 pin settings before enabling 2700G */
+        save_lcd_regs[0] = GPDR1;
+        save_lcd_regs[1] = GPDR2;
+        save_lcd_regs[2] = GAFR1_U;
+        save_lcd_regs[3] = GAFR2_L;
+        save_lcd_regs[4] = GAFR2_U;
+
+        /* Disable PXA-270 on-chip controller driving pins */
+        GPDR1 &= ~(0xfc000000);
+        GPDR2 &= ~(0x00c03fff);
+        GAFR1_U &= ~(0xfff00000);
+        GAFR2_L &= ~(0x0fffffff);
+        GAFR2_U &= ~(0x0000f000);
+        return 0;
+}
+
+static int cmx270_marathon_remove(struct fb_info *fb)
+{
+        GPDR1 =   save_lcd_regs[0];
+        GPDR2 =   save_lcd_regs[1];
+        GAFR1_U = save_lcd_regs[2];
+        GAFR2_L = save_lcd_regs[3];
+        GAFR2_U = save_lcd_regs[4];
+        return 0;
+}
+
+static struct mbxfb_platform_data cmx270_2700G_data = {
+        .xres = {
+                .min = 240,
+                .max = 1200,
+                .defval = 640,
+        },
+        .yres = {
+                .min = 240,
+                .max = 1200,
+                .defval = 480,
+        },
+        .bpp = {
+                .min = 16,
+                .max = 32,
+                .defval = 16,
+        },
+        .memsize = 8*1024*1024,
+        .probe = cmx270_marathon_probe,
+        .remove = cmx270_marathon_remove,
+};
+
+static struct platform_device cmx270_2700G = {
+        .name           = "mbx-fb",
+        .dev            = {
+                .platform_data  = &cmx270_2700G_data,
+                .dma_mask       = &fb_dma_mask,
+                .coherent_dma_mask = 0xffffffff,
+        },
+        .num_resources  = ARRAY_SIZE(cmx270_2700G_resource),
+        .resource       = cmx270_2700G_resource,
+        .id             = -1,
+};
+
+static void __init cmx270_init_2700G(void)
+{
+        platform_device_register(&cmx270_2700G);
+}
+#else
+static inline void cmx270_init_2700G(void) {}
+#endif
+
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
+/*
+  Display definitions
+  keep these for backwards compatibility, although symbolic names (as
+  e.g. in lpd270.c) looks better
+*/
+#define MTYPE_STN320x240        0
+#define MTYPE_TFT640x480        1
+#define MTYPE_CRT640x480        2
+#define MTYPE_CRT800x600        3
+#define MTYPE_TFT320x240        6
+#define MTYPE_STN640x480        7
+
+static struct pxafb_mode_info generic_stn_320x240_mode = {
+        .pixclock       = 76923,
+        .bpp            = 8,
+        .xres           = 320,
+        .yres           = 240,
+        .hsync_len      = 3,
+        .vsync_len      = 2,
+        .left_margin    = 3,
+        .upper_margin   = 0,
+        .right_margin   = 3,
+        .lower_margin   = 0,
+        .sync           = (FB_SYNC_HOR_HIGH_ACT |
+                           FB_SYNC_VERT_HIGH_ACT),
+        .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_stn_320x240 = {
+        .modes          = &generic_stn_320x240_mode,
+        .num_modes      = 1,
+        .lccr0          = 0,
+        .lccr3          = (LCCR3_PixClkDiv(0x03) |
+                           LCCR3_Acb(0xff) |
+                           LCCR3_PCP),
+        .cmap_inverse   = 0,
+        .cmap_static    = 0,
+};
+
+static struct pxafb_mode_info generic_tft_640x480_mode = {
+        .pixclock       = 38461,
+        .bpp            = 8,
+        .xres           = 640,
+        .yres           = 480,
+        .hsync_len      = 60,
+        .vsync_len      = 2,
+        .left_margin    = 70,
+        .upper_margin   = 10,
+        .right_margin   = 70,
+        .lower_margin   = 5,
+        .sync           = 0,
+        .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_tft_640x480 = {
+        .modes          = &generic_tft_640x480_mode,
+        .num_modes      = 1,
+        .lccr0          = (LCCR0_PAS),
+        .lccr3          = (LCCR3_PixClkDiv(0x01) |
+                           LCCR3_Acb(0xff) |
+                           LCCR3_PCP),
+        .cmap_inverse   = 0,
+        .cmap_static    = 0,
+};
+
+static struct pxafb_mode_info generic_crt_640x480_mode = {
+        .pixclock       = 38461,
+        .bpp            = 8,
+        .xres           = 640,
+        .yres           = 480,
+        .hsync_len      = 63,
+        .vsync_len      = 2,
+        .left_margin    = 81,
+        .upper_margin   = 33,
+        .right_margin   = 16,
+        .lower_margin   = 10,
+        .sync           = (FB_SYNC_HOR_HIGH_ACT |
+                           FB_SYNC_VERT_HIGH_ACT),
+        .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_crt_640x480 = {
+        .modes          = &generic_crt_640x480_mode,
+        .num_modes      = 1,
+        .lccr0          = (LCCR0_PAS),
+        .lccr3          = (LCCR3_PixClkDiv(0x01) |
+                           LCCR3_Acb(0xff)),
+        .cmap_inverse   = 0,
+        .cmap_static    = 0,
+};
+
+static struct pxafb_mode_info generic_crt_800x600_mode = {
+        .pixclock       = 28846,
+        .bpp            = 8,
+        .xres           = 800,
+        .yres           = 600,
+        .hsync_len      = 63,
+        .vsync_len      = 2,
+        .left_margin    = 26,
+        .upper_margin   = 21,
+        .right_margin   = 26,
+        .lower_margin   = 11,
+        .sync           = (FB_SYNC_HOR_HIGH_ACT |
+                           FB_SYNC_VERT_HIGH_ACT),
+        .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_crt_800x600 = {
+        .modes          = &generic_crt_800x600_mode,
+        .num_modes      = 1,
+        .lccr0          = (LCCR0_PAS),
+        .lccr3          = (LCCR3_PixClkDiv(0x02) |
+                           LCCR3_Acb(0xff)),
+        .cmap_inverse   = 0,
+        .cmap_static    = 0,
+};
+
+static struct pxafb_mode_info generic_tft_320x240_mode = {
+        .pixclock       = 134615,
+        .bpp            = 16,
+        .xres           = 320,
+        .yres           = 240,
+        .hsync_len      = 63,
+        .vsync_len      = 7,
+        .left_margin    = 75,
+        .upper_margin   = 0,
+        .right_margin   = 15,
+        .lower_margin   = 15,
+        .sync           = 0,
+        .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_tft_320x240 = {
+        .modes          = &generic_tft_320x240_mode,
+        .num_modes      = 1,
+        .lccr0          = (LCCR0_PAS),
+        .lccr3          = (LCCR3_PixClkDiv(0x06) |
+                           LCCR3_Acb(0xff) |
+                           LCCR3_PCP),
+        .cmap_inverse   = 0,
+        .cmap_static    = 0,
+};
+
+static struct pxafb_mode_info generic_stn_640x480_mode = {
+        .pixclock       = 57692,
+        .bpp            = 8,
+        .xres           = 640,
+        .yres           = 480,
+        .hsync_len      = 4,
+        .vsync_len      = 2,
+        .left_margin    = 10,
+        .upper_margin   = 5,
+        .right_margin   = 10,
+        .lower_margin   = 5,
+        .sync           = (FB_SYNC_HOR_HIGH_ACT |
+                           FB_SYNC_VERT_HIGH_ACT),
+        .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info generic_stn_640x480 = {
+        .modes          = &generic_stn_640x480_mode,
+        .num_modes      = 1,
+        .lccr0          = 0,
+        .lccr3          = (LCCR3_PixClkDiv(0x02) |
+                           LCCR3_Acb(0xff)),
+        .cmap_inverse   = 0,
+        .cmap_static    = 0,
+};
+
+static struct pxafb_mach_info *cmx270_display = &generic_crt_640x480;
+
+static int __init cmx270_set_display(char *str)
+{
+        int disp_type = simple_strtol(str, NULL, 0);
+        switch (disp_type) {
+        case MTYPE_STN320x240:
+                cmx270_display = &generic_stn_320x240;
+                break;
+        case MTYPE_TFT640x480:
+                cmx270_display = &generic_tft_640x480;
+                break;
+        case MTYPE_CRT640x480:
+                cmx270_display = &generic_crt_640x480;
+                break;
+        case MTYPE_CRT800x600:
+                cmx270_display = &generic_crt_800x600;
+                break;
+        case MTYPE_TFT320x240:
+                cmx270_display = &generic_tft_320x240;
+                break;
+        case MTYPE_STN640x480:
+                cmx270_display = &generic_stn_640x480;
+                break;
+        default: /* fallback to CRT 640x480 */
+                cmx270_display = &generic_crt_640x480;
+                break;
+        }
+        return 1;
+}
+
+/*
+   This should be done really early to get proper configuration for
+   frame buffer.
+   Indeed, pxafb parameters can be used istead, but CM-X270 bootloader
+   has limitied line length for kernel command line, and also it will
+   break compatibitlty with proprietary releases already in field.
+*/
+__setup("monitor=", cmx270_set_display);
+
+static void __init cmx270_init_display(void)
+{
+        set_pxa_fb_info(cmx270_display);
+}
+#else
+static inline void cmx270_init_display(void) {}
+#endif
+
+/* PXA27x OHCI controller setup */
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+static int cmx270_ohci_init(struct device *dev)
+{
+        /* Set the Power Control Polarity Low */
+        UHCHR = (UHCHR | UHCHR_PCPL) &
+                ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE);
+
+        return 0;
+}
+
+static struct pxaohci_platform_data cmx270_ohci_platform_data = {
+        .port_mode      = PMM_PERPORT_MODE,
+        .init           = cmx270_ohci_init,
+};
+
+static void __init cmx270_init_ohci(void)
+{
+        pxa_set_ohci_info(&cmx270_ohci_platform_data);
+}
+#else
+static inline void cmx270_init_ohci(void) {}
+#endif
+
+#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
+static int cmx270_mci_init(struct device *dev,
+                           irq_handler_t cmx270_detect_int,
+                           void *data)
+{
+        int err;
+
+        err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power");
+        if (err) {
+                dev_warn(dev, "power gpio unavailable\n");
+                return err;
+        }
+
+        gpio_direction_output(GPIO105_MMC_POWER, 0);
+
+        err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,
+                          IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+                          "MMC card detect", data);
+        if (err) {
+                gpio_free(GPIO105_MMC_POWER);
+                dev_err(dev, "cmx270_mci_init: MMC/SD: can't"
+                        " request MMC card detect IRQ\n");
+        }
+
+        return err;
+}
+
+static void cmx270_mci_setpower(struct device *dev, unsigned int vdd)
+{
+        struct pxamci_platform_data *p_d = dev->platform_data;
+
+        if ((1 << vdd) & p_d->ocr_mask) {
+                dev_dbg(dev, "power on\n");
+                gpio_set_value(GPIO105_MMC_POWER, 0);
+        } else {
+                gpio_set_value(GPIO105_MMC_POWER, 1);
+                dev_dbg(dev, "power off\n");
+        }
+}
+
+static void cmx270_mci_exit(struct device *dev, void *data)
+{
+        free_irq(CMX270_MMC_IRQ, data);
+        gpio_free(GPIO105_MMC_POWER);
+}
+
+static struct pxamci_platform_data cmx270_mci_platform_data = {
+        .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
+        .init           = cmx270_mci_init,
+        .setpower       = cmx270_mci_setpower,
+        .exit           = cmx270_mci_exit,
+};
+
+static void __init cmx270_init_mmc(void)
+{
+        pxa_set_mci_info(&cmx270_mci_platform_data);
+}
+#else
+static inline void cmx270_init_mmc(void) {}
+#endif
+
+#ifdef CONFIG_PM
+static unsigned long sleep_save_msc[10];
+
+static int cmx270_suspend(struct sys_device *dev, pm_message_t state)
+{
+        cmx270_pci_suspend();
+
+        /* save MSC registers */
+        sleep_save_msc[0] = MSC0;
+        sleep_save_msc[1] = MSC1;
+        sleep_save_msc[2] = MSC2;
+
+        /* setup power saving mode registers */
+        PCFR = 0x0;
+        PSLR = 0xff400000;
+        PMCR  = 0x00000005;
+        PWER  = 0x80000000;
+        PFER  = 0x00000000;
+        PRER  = 0x00000000;
+        PGSR0 = 0xC0018800;
+        PGSR1 = 0x004F0002;
+        PGSR2 = 0x6021C000;
+        PGSR3 = 0x00020000;
+
+        return 0;
+}
+
+static int cmx270_resume(struct sys_device *dev)
+{
+        cmx270_pci_resume();
+
+        /* restore MSC registers */
+        MSC0 = sleep_save_msc[0];
+        MSC1 = sleep_save_msc[1];
+        MSC2 = sleep_save_msc[2];
+
+        return 0;
+}
+
+static struct sysdev_class cmx270_pm_sysclass = {
+        .name = "pm",
+        .resume = cmx270_resume,
+        .suspend = cmx270_suspend,
+};
+
+static struct sys_device cmx270_pm_device = {
+        .cls = &cmx270_pm_sysclass,
+};
+
+static int __init cmx270_pm_init(void)
+{
+        int error;
+        error = sysdev_class_register(&cmx270_pm_sysclass);
+        if (error == 0)
+                error = sysdev_register(&cmx270_pm_device);
+        return error;
+}
+#else
+static int __init cmx270_pm_init(void) { return 0; }
+#endif
+
+#if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
+static void __init cmx270_init_ac97(void)
+{
+        pxa_set_ac97_info(NULL);
+}
+#else
+static inline void cmx270_init_ac97(void) {}
+#endif
+
+static void __init cmx270_init(void)
+{
+        cmx270_pm_init();
+
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
+
+        cmx270_init_dm9000();
+        cmx270_init_rtc();
+        cmx270_init_display();
+        cmx270_init_mmc();
+        cmx270_init_ohci();
+        cmx270_init_ac97();
+        cmx270_init_touchscreen();
+        cmx270_init_leds();
+        cmx270_init_2700G();
+}
+
+static void __init cmx270_init_irq(void)
+{
+        pxa27x_init_irq();
+
+        cmx270_pci_init_irq(GPIO22_IT8152_IRQ);
+}
+
+#ifdef CONFIG_PCI
+/* Map PCI companion statically */
+static struct map_desc cmx270_io_desc[] __initdata = {
+        [0] = { /* PCI bridge */
+                .virtual        = CMX270_IT8152_VIRT,
+                .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
+                .length         = SZ_64M,
+                .type           = MT_DEVICE
+        },
+};
+
+static void __init cmx270_map_io(void)
+{
+        pxa_map_io();
+        iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc));
+
+        it8152_base_address = CMX270_IT8152_VIRT;
+}
+#else
+static void __init cmx270_map_io(void)
+{
+        pxa_map_io();
+}
+#endif
+
+MACHINE_START(ARMCORE, "Compulab CM-x270")
+        .boot_params    = 0xa0000100,
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .map_io         = cmx270_map_io,
+        .init_irq       = cmx270_init_irq,
+        .timer          = &pxa_timer,
+        .init_machine   = cmx270_init,
+MACHINE_END