/*
* 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 <asm/arch/pxa2xx-regs.h>
#include <asm/arch/mfp-pxa27x.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/audio.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/ohci.h>
#include <asm/arch/mmc.h>
#include <asm/arch/bitfield.h>
#include <asm/hardware/it8152.h>
#include "generic.h"
#include "cm-x270-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
