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OpenCloudOS-Kernel/arch/arm/mach-pxa/cm-x270.c

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/*
* 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/rtc-v3020.h>
#include <video/mbxfb.h>
#include <mach/mfp-pxa27x.h>
#include <mach/ohci.h>
#include <mach/mmc.h>
#include "generic.h"
/* physical address if local-bus attached devices */
#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
/* GPIO IRQ usage */
#define GPIO83_MMC_IRQ (83)
#define CMX270_MMC_IRQ IRQ_GPIO(GPIO83_MMC_IRQ)
/* 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 */
};
/* 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 cmx2xx_init_rtc(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
/* PXA27x OHCI controller setup */
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static struct pxaohci_platform_data cmx270_ohci_platform_data = {
.port_mode = PMM_PERPORT_MODE,
.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
};
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
void __init cmx270_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
cmx270_init_rtc();
cmx270_init_mmc();
cmx270_init_ohci();
cmx270_init_2700G();
}
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