343 строки
7.1 KiB
C
343 строки
7.1 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, 2008 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/platform_device.h>
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#include <linux/sysdev.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/rtc-v3020.h>
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#include <video/mbxfb.h>
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#include <mach/pxa27x.h>
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#include <mach/ohci.h>
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#include <mach/mmc.h>
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#include "generic.h"
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/* physical address if local-bus attached devices */
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#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
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/* GPIO IRQ usage */
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#define GPIO83_MMC_IRQ (83)
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#define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ)
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/* MMC power enable */
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#define GPIO105_MMC_POWER (105)
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static unsigned long cmx270_pin_config[] = {
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/* AC'97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO98_AC97_SYSCLK,
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GPIO113_AC97_nRESET,
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/* BTUART */
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GPIO42_BTUART_RXD,
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GPIO43_BTUART_TXD,
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GPIO44_BTUART_CTS,
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GPIO45_BTUART_RTS,
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/* STUART */
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GPIO46_STUART_RXD,
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GPIO47_STUART_TXD,
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/* MCI controller */
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GPIO32_MMC_CLK,
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GPIO112_MMC_CMD,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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/* LCD */
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GPIO58_LCD_LDD_0,
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GPIO59_LCD_LDD_1,
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GPIO60_LCD_LDD_2,
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GPIO61_LCD_LDD_3,
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GPIO62_LCD_LDD_4,
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GPIO63_LCD_LDD_5,
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GPIO64_LCD_LDD_6,
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GPIO65_LCD_LDD_7,
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GPIO66_LCD_LDD_8,
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GPIO67_LCD_LDD_9,
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GPIO68_LCD_LDD_10,
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GPIO69_LCD_LDD_11,
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GPIO70_LCD_LDD_12,
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GPIO71_LCD_LDD_13,
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GPIO72_LCD_LDD_14,
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GPIO73_LCD_LDD_15,
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GPIO74_LCD_FCLK,
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GPIO75_LCD_LCLK,
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GPIO76_LCD_PCLK,
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GPIO77_LCD_BIAS,
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/* I2C */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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/* SSP1 */
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GPIO23_SSP1_SCLK,
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GPIO24_SSP1_SFRM,
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GPIO25_SSP1_TXD,
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GPIO26_SSP1_RXD,
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/* SSP2 */
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GPIO19_SSP2_SCLK,
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GPIO14_SSP2_SFRM,
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GPIO87_SSP2_TXD,
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GPIO88_SSP2_RXD,
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/* PC Card */
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GPIO48_nPOE,
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GPIO49_nPWE,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO85_nPCE_1,
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GPIO54_nPCE_2,
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GPIO55_nPREG,
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GPIO56_nPWAIT,
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GPIO57_nIOIS16,
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/* SDRAM and local bus */
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GPIO15_nCS_1,
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GPIO78_nCS_2,
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GPIO79_nCS_3,
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GPIO80_nCS_4,
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GPIO33_nCS_5,
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GPIO49_nPWE,
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GPIO18_RDY,
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/* GPIO */
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GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
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GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */
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GPIO53_GPIO, /* PC card reset */
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/* NAND controls */
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GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
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GPIO89_GPIO, /* NAND Ready/Busy */
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/* interrupts */
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GPIO10_GPIO, /* DM9000 interrupt */
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GPIO83_GPIO, /* MMC card detect */
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};
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/* V3020 RTC */
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#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
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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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static void __init cmx270_init_rtc(void)
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{
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platform_device_register(&cmx270_rtc_device);
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}
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#else
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static inline void cmx270_init_rtc(void) {}
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#endif
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/* 2700G graphics */
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#if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
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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 = PXA_CS2_PHYS,
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.end = PXA_CS2_PHYS + 0x01ffffff,
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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 = PXA_CS2_PHYS + 0x03fe0000,
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.end = PXA_CS2_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 void __init cmx270_init_2700G(void)
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{
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platform_device_register(&cmx270_2700G);
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}
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#else
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static inline void cmx270_init_2700G(void) {}
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#endif
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/* PXA27x OHCI controller setup */
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#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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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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.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
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};
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static void __init cmx270_init_ohci(void)
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{
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pxa_set_ohci_info(&cmx270_ohci_platform_data);
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}
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#else
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static inline void cmx270_init_ohci(void) {}
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#endif
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#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
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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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err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power");
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if (err) {
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dev_warn(dev, "power gpio unavailable\n");
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return err;
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}
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gpio_direction_output(GPIO105_MMC_POWER, 0);
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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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gpio_free(GPIO105_MMC_POWER);
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dev_err(dev, "cmx270_mci_init: MMC/SD: can't"
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" request MMC card detect IRQ\n");
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}
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return err;
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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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if ((1 << vdd) & p_d->ocr_mask) {
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dev_dbg(dev, "power on\n");
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gpio_set_value(GPIO105_MMC_POWER, 0);
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} else {
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gpio_set_value(GPIO105_MMC_POWER, 1);
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dev_dbg(dev, "power off\n");
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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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gpio_free(GPIO105_MMC_POWER);
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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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static void __init cmx270_init_mmc(void)
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{
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pxa_set_mci_info(&cmx270_mci_platform_data);
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}
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#else
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static inline void cmx270_init_mmc(void) {}
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#endif
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void __init cmx270_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
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cmx270_init_rtc();
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cmx270_init_mmc();
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cmx270_init_ohci();
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cmx270_init_2700G();
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}
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