/* * linux/arch/arm/mach-pxa/cm-x270.c * * Copyright (C) 2007 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/types.h>#include <linux/pm.h>#include <linux/fb.h>#include <linux/platform_device.h>#include <linux/irq.h>#include <linux/sysdev.h>#include <linux/io.h>#include <linux/delay.h>#include <linux/dm9000.h>#include <linux/rtc-v3020.h>#include <linux/serial_8250.h>#include <video/mbxfb.h>#include <asm/mach/arch.h>#include <asm/mach-types.h>#include <asm/mach/map.h>#include <asm/arch/pxa-regs.h>#include <asm/arch/pxafb.h>#include <asm/arch/ohci.h>#include <asm/arch/mmc.h>#include <asm/arch/bitfield.h>#include <asm/arch/cm-x270.h>#include <asm/hardware/it8152.h>#include "generic.h"#include "cm-x270-pci.h"#define RTC_PHYS_BASE		(PXA_CS1_PHYS + (5 << 22))#define DM9000_PHYS_BASE	(PXA_CS1_PHYS + (6 << 22))static struct resource cmx270_dm9k_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,	}};/* for the moment we limit ourselves to 32bit IO until some * better IO routines can be written and tested */static struct dm9000_plat_data cmx270_dm9k_platdata = {	.flags		= DM9000_PLATF_32BITONLY,};/* Ethernet device */static struct platform_device cmx270_device_dm9k = {	.name		= "dm9000",	.id		= 0,	.num_resources	= ARRAY_SIZE(cmx270_dm9k_resource),	.resource	= cmx270_dm9k_resource,	.dev		= {		.platform_data = &cmx270_dm9k_platdata,	}};/* audio device */static struct platform_device cmx270_audio_device = {	.name		= "pxa2xx-ac97",	.id		= -1,};/* touchscreen controller */static struct platform_device cmx270_ts_device = {	.name		= "ucb1400_ts",	.id		= -1,};/* RTC */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,	}};/* * CM-X270 LEDs */static struct platform_device cmx270_led_device = {	.name		= "cm-x270-led",	.id		= -1,};/* 2700G graphics */static u64 fb_dma_mask = ~(u64)0;static struct resource cmx270_2700G_resource[] = {	/* frame buffer memory including ODFB and External SDRAM */	[0] = {		.start = MARATHON_PHYS,		.end   = MARATHON_PHYS + 0x02000000,		.flags = IORESOURCE_MEM,	},	/* Marathon registers */	[1] = {		.start = MARATHON_PHYS + 0x03fe0000,		.end   = MARATHON_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 u64 ata_dma_mask = ~(u64)0;static struct platform_device cmx270_ata = {	.name = "pata_cm_x270",	.id = -1,	.dev		= {		.dma_mask	= &ata_dma_mask,		.coherent_dma_mask = 0xffffffff,	},};/* platform devices */static struct platform_device *platform_devices[] __initdata = {	&cmx270_device_dm9k,	&cmx270_audio_device,	&cmx270_rtc_device,	&cmx270_2700G,	&cmx270_led_device,	&cmx270_ts_device,	&cmx270_ata,};/* Map PCI companion and IDE/General Purpose CS statically */static struct map_desc cmx270_io_desc[] __initdata = {	[0] = { /* IDE/general purpose space */		.virtual	= CMX270_IDE104_VIRT,		.pfn		= __phys_to_pfn(CMX270_IDE104_PHYS),		.length		= SZ_64M - SZ_8M,		.type		= MT_DEVICE	},	[1] = { /* PCI bridge */		.virtual	= CMX270_IT8152_VIRT,		.pfn		= __phys_to_pfn(CMX270_IT8152_PHYS),		.length		= SZ_64M,		.type		= MT_DEVICE	},};/*  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	7static 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);/* PXA27x OHCI controller setup */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 int cmx270_mci_init(struct device *dev,			   irq_handler_t cmx270_detect_int,			   void *data){	int err;	/*	 * setup GPIO for PXA27x MMC controller	 */	pxa_gpio_mode(GPIO32_MMCCLK_MD);	pxa_gpio_mode(GPIO112_MMCCMD_MD);	pxa_gpio_mode(GPIO92_MMCDAT0_MD);	pxa_gpio_mode(GPIO109_MMCDAT1_MD);	pxa_gpio_mode(GPIO110_MMCDAT2_MD);	pxa_gpio_mode(GPIO111_MMCDAT3_MD);	/* SB-X270 uses GPIO105 as SD power enable */	pxa_gpio_mode(105 | GPIO_OUT);	/* card detect IRQ on GPIO 83 */	pxa_gpio_mode(IRQ_TO_GPIO(CMX270_MMC_IRQ));	set_irq_type(CMX270_MMC_IRQ, IRQT_FALLING);	err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,			  "MMC card detect", data);	if (err) {		printk(KERN_ERR "cmx270_mci_init: MMC/SD: can't"		       " request MMC card detect IRQ\n");		return -1;	}	return 0;}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) {		printk(KERN_DEBUG "%s: on\n", __FUNCTION__);		GPCR(105) = GPIO_bit(105);	} else {		GPSR(105) = GPIO_bit(105);		printk(KERN_DEBUG "%s: off\n", __FUNCTION__);	}}static void cmx270_mci_exit(struct device *dev, void *data){	free_irq(CMX270_MMC_IRQ, data);}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,};#ifdef CONFIG_PMstatic 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 = {	set_kset_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;}#elsestatic int __init cmx270_pm_init(void) { return 0; }#endifstatic void __init cmx270_init(void){	cmx270_pm_init();	set_pxa_fb_info(cmx270_display);	/* register CM-X270 platform devices */	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));	/* set MCI and OHCI platform parameters */	pxa_set_mci_info(&cmx270_mci_platform_data);	pxa_set_ohci_info(&cmx270_ohci_platform_data);	/* This enables the STUART */	pxa_gpio_mode(GPIO46_STRXD_MD);	pxa_gpio_mode(GPIO47_STTXD_MD);	/* This enables the BTUART  */	pxa_gpio_mode(GPIO42_BTRXD_MD);	pxa_gpio_mode(GPIO43_BTTXD_MD);	pxa_gpio_mode(GPIO44_BTCTS_MD);	pxa_gpio_mode(GPIO45_BTRTS_MD);}static void __init cmx270_init_irq(void){	pxa27x_init_irq();	cmx270_pci_init_irq();	/* Setup interrupt for dm9000 */	pxa_gpio_mode(IRQ_TO_GPIO(CMX270_ETHIRQ));	set_irq_type(CMX270_ETHIRQ, IRQT_RISING);	/* Setup interrupt for 2700G */	pxa_gpio_mode(IRQ_TO_GPIO(CMX270_GFXIRQ));	set_irq_type(CMX270_GFXIRQ, IRQT_FALLING);}static void __init cmx270_map_io(void){	pxa_map_io();	iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc));}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