646 lines
14 KiB
C
646 lines
14 KiB
C
/*
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* linux/arch/arm/mach-pxa/cm-x270.c
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*
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* Copyright (C) 2007 CompuLab, Ltd.
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* Mike Rapoport <mike@compulab.co.il>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/types.h>
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#include <linux/pm.h>
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#include <linux/fb.h>
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#include <linux/platform_device.h>
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#include <linux/irq.h>
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#include <linux/sysdev.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/dm9000.h>
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#include <linux/rtc-v3020.h>
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#include <linux/serial_8250.h>
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#include <video/mbxfb.h>
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#include <asm/mach/arch.h>
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#include <asm/mach-types.h>
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#include <asm/mach/map.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/pxafb.h>
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#include <asm/arch/ohci.h>
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#include <asm/arch/mmc.h>
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#include <asm/arch/bitfield.h>
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#include <asm/arch/cm-x270.h>
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#include <asm/hardware/it8152.h>
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#include "generic.h"
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#include "cm-x270-pci.h"
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#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
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#define DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
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static struct resource cmx270_dm9k_resource[] = {
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[0] = {
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.start = DM9000_PHYS_BASE,
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.end = DM9000_PHYS_BASE + 4,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DM9000_PHYS_BASE + 8,
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.end = DM9000_PHYS_BASE + 8 + 500,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = CMX270_ETHIRQ,
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.end = CMX270_ETHIRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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/* for the moment we limit ourselves to 32bit IO until some
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* better IO routines can be written and tested
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*/
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static struct dm9000_plat_data cmx270_dm9k_platdata = {
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.flags = DM9000_PLATF_32BITONLY,
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};
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/* Ethernet device */
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static struct platform_device cmx270_device_dm9k = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(cmx270_dm9k_resource),
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.resource = cmx270_dm9k_resource,
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.dev = {
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.platform_data = &cmx270_dm9k_platdata,
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}
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};
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/* audio device */
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static struct platform_device cmx270_audio_device = {
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.name = "pxa2xx-ac97",
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.id = -1,
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};
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/* touchscreen controller */
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static struct platform_device cmx270_ts_device = {
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.name = "ucb1400_ts",
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.id = -1,
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};
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/* RTC */
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static struct resource cmx270_v3020_resource[] = {
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[0] = {
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.start = RTC_PHYS_BASE,
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.end = RTC_PHYS_BASE + 4,
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.flags = IORESOURCE_MEM,
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},
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};
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struct v3020_platform_data cmx270_v3020_pdata = {
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.leftshift = 16,
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};
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static struct platform_device cmx270_rtc_device = {
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.name = "v3020",
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.num_resources = ARRAY_SIZE(cmx270_v3020_resource),
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.resource = cmx270_v3020_resource,
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.id = -1,
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.dev = {
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.platform_data = &cmx270_v3020_pdata,
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}
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};
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/*
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* CM-X270 LEDs
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*/
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static struct platform_device cmx270_led_device = {
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.name = "cm-x270-led",
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.id = -1,
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};
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/* 2700G graphics */
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static u64 fb_dma_mask = ~(u64)0;
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static struct resource cmx270_2700G_resource[] = {
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/* frame buffer memory including ODFB and External SDRAM */
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[0] = {
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.start = MARATHON_PHYS,
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.end = MARATHON_PHYS + 0x02000000,
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.flags = IORESOURCE_MEM,
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},
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/* Marathon registers */
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[1] = {
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.start = MARATHON_PHYS + 0x03fe0000,
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.end = MARATHON_PHYS + 0x03ffffff,
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.flags = IORESOURCE_MEM,
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},
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};
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static unsigned long save_lcd_regs[10];
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static int cmx270_marathon_probe(struct fb_info *fb)
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{
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/* save PXA-270 pin settings before enabling 2700G */
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save_lcd_regs[0] = GPDR1;
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save_lcd_regs[1] = GPDR2;
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save_lcd_regs[2] = GAFR1_U;
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save_lcd_regs[3] = GAFR2_L;
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save_lcd_regs[4] = GAFR2_U;
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/* Disable PXA-270 on-chip controller driving pins */
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GPDR1 &= ~(0xfc000000);
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GPDR2 &= ~(0x00c03fff);
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GAFR1_U &= ~(0xfff00000);
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GAFR2_L &= ~(0x0fffffff);
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GAFR2_U &= ~(0x0000f000);
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return 0;
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}
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static int cmx270_marathon_remove(struct fb_info *fb)
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{
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GPDR1 = save_lcd_regs[0];
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GPDR2 = save_lcd_regs[1];
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GAFR1_U = save_lcd_regs[2];
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GAFR2_L = save_lcd_regs[3];
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GAFR2_U = save_lcd_regs[4];
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return 0;
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}
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static struct mbxfb_platform_data cmx270_2700G_data = {
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.xres = {
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.min = 240,
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.max = 1200,
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.defval = 640,
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},
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.yres = {
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.min = 240,
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.max = 1200,
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.defval = 480,
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},
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.bpp = {
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.min = 16,
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.max = 32,
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.defval = 16,
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},
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.memsize = 8*1024*1024,
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.probe = cmx270_marathon_probe,
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.remove = cmx270_marathon_remove,
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};
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static struct platform_device cmx270_2700G = {
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.name = "mbx-fb",
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.dev = {
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.platform_data = &cmx270_2700G_data,
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.dma_mask = &fb_dma_mask,
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(cmx270_2700G_resource),
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.resource = cmx270_2700G_resource,
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.id = -1,
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};
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static u64 ata_dma_mask = ~(u64)0;
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static struct platform_device cmx270_ata = {
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.name = "pata_cm_x270",
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.id = -1,
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.dev = {
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.dma_mask = &ata_dma_mask,
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.coherent_dma_mask = 0xffffffff,
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},
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};
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/* platform devices */
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static struct platform_device *platform_devices[] __initdata = {
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&cmx270_device_dm9k,
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&cmx270_audio_device,
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&cmx270_rtc_device,
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&cmx270_2700G,
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&cmx270_led_device,
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&cmx270_ts_device,
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&cmx270_ata,
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};
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/* Map PCI companion and IDE/General Purpose CS statically */
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static struct map_desc cmx270_io_desc[] __initdata = {
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[0] = { /* IDE/general purpose space */
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.virtual = CMX270_IDE104_VIRT,
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.pfn = __phys_to_pfn(CMX270_IDE104_PHYS),
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.length = SZ_64M - SZ_8M,
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.type = MT_DEVICE
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},
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[1] = { /* PCI bridge */
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.virtual = CMX270_IT8152_VIRT,
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.pfn = __phys_to_pfn(CMX270_IT8152_PHYS),
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.length = SZ_64M,
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.type = MT_DEVICE
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},
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};
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/*
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Display definitions
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keep these for backwards compatibility, although symbolic names (as
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e.g. in lpd270.c) looks better
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*/
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#define MTYPE_STN320x240 0
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#define MTYPE_TFT640x480 1
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#define MTYPE_CRT640x480 2
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#define MTYPE_CRT800x600 3
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#define MTYPE_TFT320x240 6
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#define MTYPE_STN640x480 7
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static struct pxafb_mode_info generic_stn_320x240_mode = {
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.pixclock = 76923,
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.bpp = 8,
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.xres = 320,
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.yres = 240,
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.hsync_len = 3,
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.vsync_len = 2,
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.left_margin = 3,
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.upper_margin = 0,
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.right_margin = 3,
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.lower_margin = 0,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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FB_SYNC_VERT_HIGH_ACT),
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_stn_320x240 = {
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.modes = &generic_stn_320x240_mode,
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.num_modes = 1,
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.lccr0 = 0,
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.lccr3 = (LCCR3_PixClkDiv(0x03) |
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LCCR3_Acb(0xff) |
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LCCR3_PCP),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_tft_640x480_mode = {
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.pixclock = 38461,
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.bpp = 8,
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.xres = 640,
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.yres = 480,
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.hsync_len = 60,
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.vsync_len = 2,
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.left_margin = 70,
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.upper_margin = 10,
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.right_margin = 70,
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.lower_margin = 5,
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.sync = 0,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_tft_640x480 = {
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.modes = &generic_tft_640x480_mode,
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.num_modes = 1,
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.lccr0 = (LCCR0_PAS),
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.lccr3 = (LCCR3_PixClkDiv(0x01) |
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LCCR3_Acb(0xff) |
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LCCR3_PCP),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_crt_640x480_mode = {
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.pixclock = 38461,
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.bpp = 8,
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.xres = 640,
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.yres = 480,
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.hsync_len = 63,
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.vsync_len = 2,
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.left_margin = 81,
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.upper_margin = 33,
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.right_margin = 16,
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.lower_margin = 10,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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FB_SYNC_VERT_HIGH_ACT),
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_crt_640x480 = {
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.modes = &generic_crt_640x480_mode,
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.num_modes = 1,
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.lccr0 = (LCCR0_PAS),
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.lccr3 = (LCCR3_PixClkDiv(0x01) |
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LCCR3_Acb(0xff)),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_crt_800x600_mode = {
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.pixclock = 28846,
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.bpp = 8,
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.xres = 800,
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.yres = 600,
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.hsync_len = 63,
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.vsync_len = 2,
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.left_margin = 26,
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.upper_margin = 21,
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.right_margin = 26,
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.lower_margin = 11,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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FB_SYNC_VERT_HIGH_ACT),
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_crt_800x600 = {
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.modes = &generic_crt_800x600_mode,
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.num_modes = 1,
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.lccr0 = (LCCR0_PAS),
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.lccr3 = (LCCR3_PixClkDiv(0x02) |
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LCCR3_Acb(0xff)),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_tft_320x240_mode = {
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.pixclock = 134615,
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.bpp = 16,
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.xres = 320,
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.yres = 240,
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.hsync_len = 63,
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.vsync_len = 7,
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.left_margin = 75,
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.upper_margin = 0,
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.right_margin = 15,
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.lower_margin = 15,
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.sync = 0,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_tft_320x240 = {
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.modes = &generic_tft_320x240_mode,
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.num_modes = 1,
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.lccr0 = (LCCR0_PAS),
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.lccr3 = (LCCR3_PixClkDiv(0x06) |
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LCCR3_Acb(0xff) |
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LCCR3_PCP),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_stn_640x480_mode = {
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.pixclock = 57692,
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.bpp = 8,
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.xres = 640,
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.yres = 480,
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.hsync_len = 4,
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.vsync_len = 2,
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.left_margin = 10,
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.upper_margin = 5,
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.right_margin = 10,
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.lower_margin = 5,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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FB_SYNC_VERT_HIGH_ACT),
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_stn_640x480 = {
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.modes = &generic_stn_640x480_mode,
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.num_modes = 1,
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.lccr0 = 0,
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.lccr3 = (LCCR3_PixClkDiv(0x02) |
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LCCR3_Acb(0xff)),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mach_info *cmx270_display = &generic_crt_640x480;
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static int __init cmx270_set_display(char *str)
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{
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int disp_type = simple_strtol(str, NULL, 0);
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switch (disp_type) {
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case MTYPE_STN320x240:
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cmx270_display = &generic_stn_320x240;
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break;
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case MTYPE_TFT640x480:
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cmx270_display = &generic_tft_640x480;
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break;
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case MTYPE_CRT640x480:
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cmx270_display = &generic_crt_640x480;
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break;
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case MTYPE_CRT800x600:
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cmx270_display = &generic_crt_800x600;
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break;
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case MTYPE_TFT320x240:
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cmx270_display = &generic_tft_320x240;
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break;
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case MTYPE_STN640x480:
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cmx270_display = &generic_stn_640x480;
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break;
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default: /* fallback to CRT 640x480 */
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cmx270_display = &generic_crt_640x480;
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break;
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}
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return 1;
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}
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/*
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This should be done really early to get proper configuration for
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frame buffer.
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Indeed, pxafb parameters can be used istead, but CM-X270 bootloader
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has limitied line length for kernel command line, and also it will
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break compatibitlty with proprietary releases already in field.
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*/
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__setup("monitor=", cmx270_set_display);
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/* PXA27x OHCI controller setup */
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static int cmx270_ohci_init(struct device *dev)
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{
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/* Set the Power Control Polarity Low */
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UHCHR = (UHCHR | UHCHR_PCPL) &
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~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE);
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return 0;
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}
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static struct pxaohci_platform_data cmx270_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.init = cmx270_ohci_init,
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};
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static int cmx270_mci_init(struct device *dev,
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irq_handler_t cmx270_detect_int,
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void *data)
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{
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int err;
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/*
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* setup GPIO for PXA27x MMC controller
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*/
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pxa_gpio_mode(GPIO32_MMCCLK_MD);
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pxa_gpio_mode(GPIO112_MMCCMD_MD);
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pxa_gpio_mode(GPIO92_MMCDAT0_MD);
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pxa_gpio_mode(GPIO109_MMCDAT1_MD);
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pxa_gpio_mode(GPIO110_MMCDAT2_MD);
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pxa_gpio_mode(GPIO111_MMCDAT3_MD);
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/* SB-X270 uses GPIO105 as SD power enable */
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pxa_gpio_mode(105 | GPIO_OUT);
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/* card detect IRQ on GPIO 83 */
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pxa_gpio_mode(IRQ_TO_GPIO(CMX270_MMC_IRQ));
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set_irq_type(CMX270_MMC_IRQ, IRQT_FALLING);
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err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (err) {
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printk(KERN_ERR "cmx270_mci_init: MMC/SD: can't"
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" request MMC card detect IRQ\n");
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return -1;
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}
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return 0;
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}
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static void cmx270_mci_setpower(struct device *dev, unsigned int vdd)
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{
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struct pxamci_platform_data *p_d = dev->platform_data;
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|
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if ((1 << vdd) & p_d->ocr_mask) {
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printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
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GPCR(105) = GPIO_bit(105);
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} else {
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GPSR(105) = GPIO_bit(105);
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printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
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}
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}
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|
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static void cmx270_mci_exit(struct device *dev, void *data)
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{
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free_irq(CMX270_MMC_IRQ, data);
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}
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|
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static struct pxamci_platform_data cmx270_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.init = cmx270_mci_init,
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.setpower = cmx270_mci_setpower,
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.exit = cmx270_mci_exit,
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};
|
|
|
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#ifdef CONFIG_PM
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static unsigned long sleep_save_msc[10];
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|
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static int cmx270_suspend(struct sys_device *dev, pm_message_t state)
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{
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cmx270_pci_suspend();
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|
|
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/* save MSC registers */
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sleep_save_msc[0] = MSC0;
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sleep_save_msc[1] = MSC1;
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sleep_save_msc[2] = MSC2;
|
|
|
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/* setup power saving mode registers */
|
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PCFR = 0x0;
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PSLR = 0xff400000;
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PMCR = 0x00000005;
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PWER = 0x80000000;
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PFER = 0x00000000;
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PRER = 0x00000000;
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PGSR0 = 0xC0018800;
|
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PGSR1 = 0x004F0002;
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PGSR2 = 0x6021C000;
|
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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
|
|
|
|
static 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
|