| /* |
| * arch/arm/mach-pxa/pcm990-baseboard.c |
| * Support for the Phytec phyCORE-PXA270 Development Platform (PCM-990). |
| * |
| * Refer |
| * http://www.phytec.com/products/rdk/ARM-XScale/phyCORE-XScale-PXA270.html |
| * for additional hardware info |
| * |
| * Author: Juergen Kilb |
| * Created: April 05, 2005 |
| * Copyright: Phytec Messtechnik GmbH |
| * e-Mail: armlinux@phytec.de |
| * |
| * based on Intel Mainstone Board |
| * |
| * Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de) |
| * |
| * 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/irq.h> |
| #include <linux/platform_device.h> |
| #include <linux/i2c.h> |
| #include <linux/i2c/pxa-i2c.h> |
| #include <linux/pwm_backlight.h> |
| |
| #include <media/soc_camera.h> |
| |
| #include <asm/gpio.h> |
| #include <mach/camera.h> |
| #include <asm/mach/map.h> |
| #include <mach/pxa27x.h> |
| #include <mach/audio.h> |
| #include <mach/mmc.h> |
| #include <mach/ohci.h> |
| #include <mach/pcm990_baseboard.h> |
| #include <mach/pxafb.h> |
| |
| #include "devices.h" |
| #include "generic.h" |
| |
| static unsigned long pcm990_pin_config[] __initdata = { |
| /* MMC */ |
| GPIO32_MMC_CLK, |
| GPIO112_MMC_CMD, |
| GPIO92_MMC_DAT_0, |
| GPIO109_MMC_DAT_1, |
| GPIO110_MMC_DAT_2, |
| GPIO111_MMC_DAT_3, |
| /* USB */ |
| GPIO88_USBH1_PWR, |
| GPIO89_USBH1_PEN, |
| /* PWM0 */ |
| GPIO16_PWM0_OUT, |
| |
| /* I2C */ |
| GPIO117_I2C_SCL, |
| GPIO118_I2C_SDA, |
| |
| /* AC97 */ |
| GPIO28_AC97_BITCLK, |
| GPIO29_AC97_SDATA_IN_0, |
| GPIO30_AC97_SDATA_OUT, |
| GPIO31_AC97_SYNC, |
| }; |
| |
| /* |
| * pcm990_lcd_power - control power supply to the LCD |
| * @on: 0 = switch off, 1 = switch on |
| * |
| * Called by the pxafb driver |
| */ |
| #ifndef CONFIG_PCM990_DISPLAY_NONE |
| static void pcm990_lcd_power(int on, struct fb_var_screeninfo *var) |
| { |
| if (on) { |
| /* enable LCD-Latches |
| * power on LCD |
| */ |
| __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG3) = |
| PCM990_CTRL_LCDPWR + PCM990_CTRL_LCDON; |
| } else { |
| /* disable LCD-Latches |
| * power off LCD |
| */ |
| __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG3) = 0x00; |
| } |
| } |
| #endif |
| |
| #if defined(CONFIG_PCM990_DISPLAY_SHARP) |
| static struct pxafb_mode_info fb_info_sharp_lq084v1dg21 = { |
| .pixclock = 28000, |
| .xres = 640, |
| .yres = 480, |
| .bpp = 16, |
| .hsync_len = 20, |
| .left_margin = 103, |
| .right_margin = 47, |
| .vsync_len = 6, |
| .upper_margin = 28, |
| .lower_margin = 5, |
| .sync = 0, |
| .cmap_greyscale = 0, |
| }; |
| |
| static struct pxafb_mach_info pcm990_fbinfo __initdata = { |
| .modes = &fb_info_sharp_lq084v1dg21, |
| .num_modes = 1, |
| .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, |
| .pxafb_lcd_power = pcm990_lcd_power, |
| }; |
| #elif defined(CONFIG_PCM990_DISPLAY_NEC) |
| struct pxafb_mode_info fb_info_nec_nl6448bc20_18d = { |
| .pixclock = 39720, |
| .xres = 640, |
| .yres = 480, |
| .bpp = 16, |
| .hsync_len = 32, |
| .left_margin = 16, |
| .right_margin = 48, |
| .vsync_len = 2, |
| .upper_margin = 12, |
| .lower_margin = 17, |
| .sync = 0, |
| .cmap_greyscale = 0, |
| }; |
| |
| static struct pxafb_mach_info pcm990_fbinfo __initdata = { |
| .modes = &fb_info_nec_nl6448bc20_18d, |
| .num_modes = 1, |
| .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, |
| .pxafb_lcd_power = pcm990_lcd_power, |
| }; |
| #endif |
| |
| static struct platform_pwm_backlight_data pcm990_backlight_data = { |
| .pwm_id = 0, |
| .max_brightness = 1023, |
| .dft_brightness = 1023, |
| .pwm_period_ns = 78770, |
| }; |
| |
| static struct platform_device pcm990_backlight_device = { |
| .name = "pwm-backlight", |
| .dev = { |
| .parent = &pxa27x_device_pwm0.dev, |
| .platform_data = &pcm990_backlight_data, |
| }, |
| }; |
| |
| /* |
| * The PCM-990 development baseboard uses PCM-027's hardware in the |
| * following way: |
| * |
| * - LCD support is in use |
| * - GPIO16 is output for back light on/off with PWM |
| * - GPIO58 ... GPIO73 are outputs for display data |
| * - GPIO74 is output output for LCDFCLK |
| * - GPIO75 is output for LCDLCLK |
| * - GPIO76 is output for LCDPCLK |
| * - GPIO77 is output for LCDBIAS |
| * - MMC support is in use |
| * - GPIO32 is output for MMCCLK |
| * - GPIO92 is MMDAT0 |
| * - GPIO109 is MMDAT1 |
| * - GPIO110 is MMCS0 |
| * - GPIO111 is MMCS1 |
| * - GPIO112 is MMCMD |
| * - IDE/CF card is in use |
| * - GPIO48 is output /POE |
| * - GPIO49 is output /PWE |
| * - GPIO50 is output /PIOR |
| * - GPIO51 is output /PIOW |
| * - GPIO54 is output /PCE2 |
| * - GPIO55 is output /PREG |
| * - GPIO56 is input /PWAIT |
| * - GPIO57 is output /PIOS16 |
| * - GPIO79 is output PSKTSEL |
| * - GPIO85 is output /PCE1 |
| * - FFUART is in use |
| * - GPIO34 is input FFRXD |
| * - GPIO35 is input FFCTS |
| * - GPIO36 is input FFDCD |
| * - GPIO37 is input FFDSR |
| * - GPIO38 is input FFRI |
| * - GPIO39 is output FFTXD |
| * - GPIO40 is output FFDTR |
| * - GPIO41 is output FFRTS |
| * - BTUART is in use |
| * - GPIO42 is input BTRXD |
| * - GPIO43 is output BTTXD |
| * - GPIO44 is input BTCTS |
| * - GPIO45 is output BTRTS |
| * - IRUART is in use |
| * - GPIO46 is input STDRXD |
| * - GPIO47 is output STDTXD |
| * - AC97 is in use*) |
| * - GPIO28 is input AC97CLK |
| * - GPIO29 is input AC97DatIn |
| * - GPIO30 is output AC97DatO |
| * - GPIO31 is output AC97SYNC |
| * - GPIO113 is output AC97_RESET |
| * - SSP is in use |
| * - GPIO23 is output SSPSCLK |
| * - GPIO24 is output chip select to Max7301 |
| * - GPIO25 is output SSPTXD |
| * - GPIO26 is input SSPRXD |
| * - GPIO27 is input for Max7301 IRQ |
| * - GPIO53 is input SSPSYSCLK |
| * - SSP3 is in use |
| * - GPIO81 is output SSPTXD3 |
| * - GPIO82 is input SSPRXD3 |
| * - GPIO83 is output SSPSFRM |
| * - GPIO84 is output SSPCLK3 |
| * |
| * Otherwise claimed GPIOs: |
| * GPIO1 -> IRQ from user switch |
| * GPIO9 -> IRQ from power management |
| * GPIO10 -> IRQ from WML9712 AC97 controller |
| * GPIO11 -> IRQ from IDE controller |
| * GPIO12 -> IRQ from CF controller |
| * GPIO13 -> IRQ from CF controller |
| * GPIO14 -> GPIO free |
| * GPIO15 -> /CS1 selects baseboard's Control CPLD (U7, 16 bit wide data path) |
| * GPIO19 -> GPIO free |
| * GPIO20 -> /SDCS2 |
| * GPIO21 -> /CS3 PC card socket select |
| * GPIO33 -> /CS5 network controller select |
| * GPIO78 -> /CS2 (16 bit wide data path) |
| * GPIO80 -> /CS4 (16 bit wide data path) |
| * GPIO86 -> GPIO free |
| * GPIO87 -> GPIO free |
| * GPIO90 -> LED0 on CPU module |
| * GPIO91 -> LED1 on CPI module |
| * GPIO117 -> SCL |
| * GPIO118 -> SDA |
| */ |
| |
| static unsigned long pcm990_irq_enabled; |
| |
| static void pcm990_mask_ack_irq(struct irq_data *d) |
| { |
| int pcm990_irq = (d->irq - PCM027_IRQ(0)); |
| PCM990_INTMSKENA = (pcm990_irq_enabled &= ~(1 << pcm990_irq)); |
| } |
| |
| static void pcm990_unmask_irq(struct irq_data *d) |
| { |
| int pcm990_irq = (d->irq - PCM027_IRQ(0)); |
| /* the irq can be acknowledged only if deasserted, so it's done here */ |
| PCM990_INTSETCLR |= 1 << pcm990_irq; |
| PCM990_INTMSKENA = (pcm990_irq_enabled |= (1 << pcm990_irq)); |
| } |
| |
| static struct irq_chip pcm990_irq_chip = { |
| .irq_mask_ack = pcm990_mask_ack_irq, |
| .irq_unmask = pcm990_unmask_irq, |
| }; |
| |
| static void pcm990_irq_handler(unsigned int irq, struct irq_desc *desc) |
| { |
| unsigned long pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled; |
| |
| do { |
| /* clear our parent IRQ */ |
| desc->irq_data.chip->irq_ack(&desc->irq_data); |
| if (likely(pending)) { |
| irq = PCM027_IRQ(0) + __ffs(pending); |
| generic_handle_irq(irq); |
| } |
| pending = (~PCM990_INTSETCLR) & pcm990_irq_enabled; |
| } while (pending); |
| } |
| |
| static void __init pcm990_init_irq(void) |
| { |
| int irq; |
| |
| /* setup extra PCM990 irqs */ |
| for (irq = PCM027_IRQ(0); irq <= PCM027_IRQ(3); irq++) { |
| set_irq_chip(irq, &pcm990_irq_chip); |
| set_irq_handler(irq, handle_level_irq); |
| set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); |
| } |
| |
| PCM990_INTMSKENA = 0x00; /* disable all Interrupts */ |
| PCM990_INTSETCLR = 0xFF; |
| |
| set_irq_chained_handler(PCM990_CTRL_INT_IRQ, pcm990_irq_handler); |
| set_irq_type(PCM990_CTRL_INT_IRQ, PCM990_CTRL_INT_IRQ_EDGE); |
| } |
| |
| static int pcm990_mci_init(struct device *dev, irq_handler_t mci_detect_int, |
| void *data) |
| { |
| int err; |
| |
| err = request_irq(PCM027_MMCDET_IRQ, mci_detect_int, IRQF_DISABLED, |
| "MMC card detect", data); |
| if (err) |
| printk(KERN_ERR "pcm990_mci_init: MMC/SD: can't request MMC " |
| "card detect IRQ\n"); |
| |
| return err; |
| } |
| |
| static void pcm990_mci_setpower(struct device *dev, unsigned int vdd) |
| { |
| struct pxamci_platform_data *p_d = dev->platform_data; |
| |
| if ((1 << vdd) & p_d->ocr_mask) |
| __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5) = |
| PCM990_CTRL_MMC2PWR; |
| else |
| __PCM990_CTRL_REG(PCM990_CTRL_PHYS + PCM990_CTRL_REG5) = |
| ~PCM990_CTRL_MMC2PWR; |
| } |
| |
| static void pcm990_mci_exit(struct device *dev, void *data) |
| { |
| free_irq(PCM027_MMCDET_IRQ, data); |
| } |
| |
| #define MSECS_PER_JIFFY (1000/HZ) |
| |
| static struct pxamci_platform_data pcm990_mci_platform_data = { |
| .detect_delay_ms = 250, |
| .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| .init = pcm990_mci_init, |
| .setpower = pcm990_mci_setpower, |
| .exit = pcm990_mci_exit, |
| .gpio_card_detect = -1, |
| .gpio_card_ro = -1, |
| .gpio_power = -1, |
| }; |
| |
| static struct pxaohci_platform_data pcm990_ohci_platform_data = { |
| .port_mode = PMM_PERPORT_MODE, |
| .flags = ENABLE_PORT1 | POWER_CONTROL_LOW | POWER_SENSE_LOW, |
| .power_on_delay = 10, |
| }; |
| |
| /* |
| * PXA27x Camera specific stuff |
| */ |
| #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE) |
| static unsigned long pcm990_camera_pin_config[] = { |
| /* CIF */ |
| GPIO98_CIF_DD_0, |
| GPIO105_CIF_DD_1, |
| GPIO104_CIF_DD_2, |
| GPIO103_CIF_DD_3, |
| GPIO95_CIF_DD_4, |
| GPIO94_CIF_DD_5, |
| GPIO93_CIF_DD_6, |
| GPIO108_CIF_DD_7, |
| GPIO107_CIF_DD_8, |
| GPIO106_CIF_DD_9, |
| GPIO42_CIF_MCLK, |
| GPIO45_CIF_PCLK, |
| GPIO43_CIF_FV, |
| GPIO44_CIF_LV, |
| }; |
| |
| /* |
| * CICR4: PCLK_EN: Pixel clock is supplied by the sensor |
| * MCLK_EN: Master clock is generated by PXA |
| * PCP: Data sampled on the falling edge of pixel clock |
| */ |
| struct pxacamera_platform_data pcm990_pxacamera_platform_data = { |
| .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 | PXA_CAMERA_DATAWIDTH_10 | |
| PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN/* | PXA_CAMERA_PCP*/, |
| .mclk_10khz = 1000, |
| }; |
| |
| #include <linux/i2c/pca953x.h> |
| |
| static struct pca953x_platform_data pca9536_data = { |
| .gpio_base = NR_BUILTIN_GPIO, |
| }; |
| |
| static int gpio_bus_switch = -EINVAL; |
| |
| static int pcm990_camera_set_bus_param(struct soc_camera_link *link, |
| unsigned long flags) |
| { |
| if (gpio_bus_switch < 0) { |
| if (flags == SOCAM_DATAWIDTH_10) |
| return 0; |
| else |
| return -EINVAL; |
| } |
| |
| if (flags & SOCAM_DATAWIDTH_8) |
| gpio_set_value(gpio_bus_switch, 1); |
| else |
| gpio_set_value(gpio_bus_switch, 0); |
| |
| return 0; |
| } |
| |
| static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link) |
| { |
| int ret; |
| |
| if (gpio_bus_switch < 0) { |
| ret = gpio_request(NR_BUILTIN_GPIO, "camera"); |
| if (!ret) { |
| gpio_bus_switch = NR_BUILTIN_GPIO; |
| gpio_direction_output(gpio_bus_switch, 0); |
| } |
| } |
| |
| if (gpio_bus_switch >= 0) |
| return SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_10; |
| else |
| return SOCAM_DATAWIDTH_10; |
| } |
| |
| static void pcm990_camera_free_bus(struct soc_camera_link *link) |
| { |
| if (gpio_bus_switch < 0) |
| return; |
| |
| gpio_free(gpio_bus_switch); |
| gpio_bus_switch = -EINVAL; |
| } |
| |
| /* Board I2C devices. */ |
| static struct i2c_board_info __initdata pcm990_i2c_devices[] = { |
| { |
| /* Must initialize before the camera(s) */ |
| I2C_BOARD_INFO("pca9536", 0x41), |
| .platform_data = &pca9536_data, |
| }, |
| }; |
| |
| static struct i2c_board_info pcm990_camera_i2c[] = { |
| { |
| I2C_BOARD_INFO("mt9v022", 0x48), |
| }, { |
| I2C_BOARD_INFO("mt9m001", 0x5d), |
| }, |
| }; |
| |
| static struct soc_camera_link iclink[] = { |
| { |
| .bus_id = 0, /* Must match with the camera ID */ |
| .board_info = &pcm990_camera_i2c[0], |
| .i2c_adapter_id = 0, |
| .query_bus_param = pcm990_camera_query_bus_param, |
| .set_bus_param = pcm990_camera_set_bus_param, |
| .free_bus = pcm990_camera_free_bus, |
| }, { |
| .bus_id = 0, /* Must match with the camera ID */ |
| .board_info = &pcm990_camera_i2c[1], |
| .i2c_adapter_id = 0, |
| .query_bus_param = pcm990_camera_query_bus_param, |
| .set_bus_param = pcm990_camera_set_bus_param, |
| .free_bus = pcm990_camera_free_bus, |
| }, |
| }; |
| |
| static struct platform_device pcm990_camera[] = { |
| { |
| .name = "soc-camera-pdrv", |
| .id = 0, |
| .dev = { |
| .platform_data = &iclink[0], |
| }, |
| }, { |
| .name = "soc-camera-pdrv", |
| .id = 1, |
| .dev = { |
| .platform_data = &iclink[1], |
| }, |
| }, |
| }; |
| #endif /* CONFIG_VIDEO_PXA27x ||CONFIG_VIDEO_PXA27x_MODULE */ |
| |
| /* |
| * enable generic access to the base board control CPLDs U6 and U7 |
| */ |
| static struct map_desc pcm990_io_desc[] __initdata = { |
| { |
| .virtual = PCM990_CTRL_BASE, |
| .pfn = __phys_to_pfn(PCM990_CTRL_PHYS), |
| .length = PCM990_CTRL_SIZE, |
| .type = MT_DEVICE /* CPLD */ |
| }, { |
| .virtual = PCM990_CF_PLD_BASE, |
| .pfn = __phys_to_pfn(PCM990_CF_PLD_PHYS), |
| .length = PCM990_CF_PLD_SIZE, |
| .type = MT_DEVICE /* CPLD */ |
| } |
| }; |
| |
| /* |
| * system init for baseboard usage. Will be called by pcm027 init. |
| * |
| * Add platform devices present on this baseboard and init |
| * them from CPU side as far as required to use them later on |
| */ |
| void __init pcm990_baseboard_init(void) |
| { |
| pxa2xx_mfp_config(ARRAY_AND_SIZE(pcm990_pin_config)); |
| |
| /* register CPLD access */ |
| iotable_init(ARRAY_AND_SIZE(pcm990_io_desc)); |
| |
| /* register CPLD's IRQ controller */ |
| pcm990_init_irq(); |
| |
| #ifndef CONFIG_PCM990_DISPLAY_NONE |
| set_pxa_fb_info(&pcm990_fbinfo); |
| #endif |
| platform_device_register(&pcm990_backlight_device); |
| |
| /* MMC */ |
| pxa_set_mci_info(&pcm990_mci_platform_data); |
| |
| /* USB host */ |
| pxa_set_ohci_info(&pcm990_ohci_platform_data); |
| |
| pxa_set_i2c_info(NULL); |
| pxa_set_ac97_info(NULL); |
| |
| #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE) |
| pxa2xx_mfp_config(ARRAY_AND_SIZE(pcm990_camera_pin_config)); |
| pxa_set_camera_info(&pcm990_pxacamera_platform_data); |
| |
| i2c_register_board_info(0, ARRAY_AND_SIZE(pcm990_i2c_devices)); |
| |
| platform_device_register(&pcm990_camera[0]); |
| platform_device_register(&pcm990_camera[1]); |
| #endif |
| |
| printk(KERN_INFO "PCM-990 Evaluation baseboard initialized\n"); |
| } |