diff options
Diffstat (limited to 'arch/arm/mach-pxa/cm-x270.c')
| -rw-r--r-- | arch/arm/mach-pxa/cm-x270.c | 408 |
1 files changed, 285 insertions, 123 deletions
diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c index f5851d1adc25..402e807eae54 100644 --- a/arch/arm/mach-pxa/cm-x270.c +++ b/arch/arm/mach-pxa/cm-x270.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/mach-pxa/cm-x270.c * - * Copyright (C) 2007 CompuLab, Ltd. + * Copyright (C) 2007, 2008 CompuLab, Ltd. * Mike Rapoport <mike@compulab.co.il> * * This program is free software; you can redistribute it and/or modify @@ -9,43 +9,156 @@ * 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/irq.h> +#include <linux/gpio.h> #include <linux/dm9000.h> #include <linux/rtc-v3020.h> -#include <linux/serial_8250.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/pxa-regs.h> #include <asm/arch/pxa2xx-regs.h> -#include <asm/arch/pxa2xx-gpio.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/arch/cm-x270.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)) -static struct resource cmx270_dm9k_resource[] = { +/* 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, @@ -63,37 +176,45 @@ static struct resource cmx270_dm9k_resource[] = { } }; -/* 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 = { +static struct dm9000_plat_data cmx270_dm9000_platdata = { .flags = DM9000_PLATF_32BITONLY, }; -/* Ethernet device */ -static struct platform_device cmx270_device_dm9k = { +static struct platform_device cmx270_dm9000_device = { .name = "dm9000", .id = 0, - .num_resources = ARRAY_SIZE(cmx270_dm9k_resource), - .resource = cmx270_dm9k_resource, + .num_resources = ARRAY_SIZE(cmx270_dm9000_resource), + .resource = cmx270_dm9000_resource, .dev = { - .platform_data = &cmx270_dm9k_platdata, + .platform_data = &cmx270_dm9000_platdata, } }; -/* audio device */ -static struct platform_device cmx270_audio_device = { - .name = "pxa2xx-ac97", - .id = -1, -}; +static void __init cmx270_init_dm9000(void) +{ + platform_device_register(&cmx270_dm9000_device); +} +#else +static inline void cmx270_init_dm9000(void) {} +#endif -/* touchscreen controller */ +/* 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, }; -/* RTC */ +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, @@ -116,28 +237,67 @@ static struct platform_device cmx270_rtc_device = { } }; -/* - * CM-X270 LEDs - */ +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 = "cm-x270-led", + .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 = MARATHON_PHYS, - .end = MARATHON_PHYS + 0x02000000, + .start = PXA_CS2_PHYS, + .end = PXA_CS2_PHYS + 0x01ffffff, .flags = IORESOURCE_MEM, }, /* Marathon registers */ [1] = { - .start = MARATHON_PHYS + 0x03fe0000, - .end = MARATHON_PHYS + 0x03ffffff, + .start = PXA_CS2_PHYS + 0x03fe0000, + .end = PXA_CS2_PHYS + 0x03ffffff, .flags = IORESOURCE_MEM, }, }; @@ -205,44 +365,15 @@ static struct platform_device cmx270_2700G = { .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 - }, -}; +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 @@ -452,7 +583,16 @@ static int __init cmx270_set_display(char *str) */ __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 */ @@ -467,35 +607,37 @@ static struct pxaohci_platform_data cmx270_ohci_platform_data = { .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; - /* - * 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); + err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power"); + if (err) { + dev_warn(dev, "power gpio unavailable\n"); + return err; + } - /* card detect IRQ on GPIO 83 */ - pxa_gpio_mode(IRQ_TO_GPIO(CMX270_MMC_IRQ)); + 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) - printk(KERN_ERR "cmx270_mci_init: MMC/SD: can't" - " request MMC card detect IRQ\n"); + 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; } @@ -505,17 +647,18 @@ 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", __func__); - GPCR(105) = GPIO_bit(105); + dev_dbg(dev, "power on\n"); + gpio_set_value(GPIO105_MMC_POWER, 0); } else { - GPSR(105) = GPIO_bit(105); - printk(KERN_DEBUG "%s: off\n", __func__); + 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 = { @@ -525,6 +668,14 @@ static struct pxamci_platform_data cmx270_mci_platform_data = { .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]; @@ -586,52 +737,63 @@ static int __init cmx270_pm_init(void) 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(); - 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); + 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); +} - cmx270_pci_init_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 + }, +}; - /* Setup interrupt for dm9000 */ - pxa_gpio_mode(IRQ_TO_GPIO(CMX270_ETHIRQ)); - set_irq_type(CMX270_ETHIRQ, IRQT_RISING); +static void __init cmx270_map_io(void) +{ + pxa_map_io(); + iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc)); - /* Setup interrupt for 2700G */ - pxa_gpio_mode(IRQ_TO_GPIO(CMX270_GFXIRQ)); - set_irq_type(CMX270_GFXIRQ, IRQT_FALLING); + it8152_base_address = CMX270_IT8152_VIRT; } - +#else static void __init cmx270_map_io(void) { pxa_map_io(); - iotable_init(cmx270_io_desc, ARRAY_SIZE(cmx270_io_desc)); } - +#endif MACHINE_START(ARMCORE, "Compulab CM-x270") .boot_params = 0xa0000100, |