| /* |
| * 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/ide.h> |
| #include <linux/i2c.h> |
| |
| #include <media/soc_camera.h> |
| |
| #include <asm/gpio.h> |
| #include <asm/arch/i2c.h> |
| #include <asm/arch/camera.h> |
| #include <asm/mach/map.h> |
| #include <asm/arch/pxa-regs.h> |
| #include <asm/arch/pxa2xx-gpio.h> |
| #include <asm/arch/mmc.h> |
| #include <asm/arch/ohci.h> |
| #include <asm/arch/pcm990_baseboard.h> |
| |
| /* |
| * The PCM-990 development baseboard uses PCM-027's hardeware 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(unsigned int irq) |
| { |
| int pcm990_irq = (irq - PCM027_IRQ(0)); |
| PCM990_INTMSKENA = (pcm990_irq_enabled &= ~(1 << pcm990_irq)); |
| } |
| |
| static void pcm990_unmask_irq(unsigned int irq) |
| { |
| int pcm990_irq = (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 = { |
| .mask_ack = pcm990_mask_ack_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 { |
| GEDR(PCM990_CTRL_INT_IRQ_GPIO) = |
| GPIO_bit(PCM990_CTRL_INT_IRQ_GPIO); |
| if (likely(pending)) { |
| irq = PCM027_IRQ(0) + __ffs(pending); |
| desc = irq_desc + irq; |
| desc_handle_irq(irq, desc); |
| } |
| 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; |
| |
| /* |
| * enable 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); |
| |
| 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 = 250 / MSECS_PER_JIFFY, |
| .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| .init = pcm990_mci_init, |
| .setpower = pcm990_mci_setpower, |
| .exit = pcm990_mci_exit, |
| }; |
| |
| /* |
| * init OHCI hardware to work with |
| * |
| * Note: Only USB port 1 (host only) is connected |
| * |
| * GPIO88 (USBHPWR#1): overcurrent in, overcurrent when low |
| * GPIO89 (USBHPEN#1): power-on out, on when low |
| */ |
| static int pcm990_ohci_init(struct device *dev) |
| { |
| pxa_gpio_mode(PCM990_USB_OVERCURRENT); |
| pxa_gpio_mode(PCM990_USB_PWR_EN); |
| /* |
| * disable USB port 2 and 3 |
| * power sense is active low |
| */ |
| UHCHR = ((UHCHR) | UHCHR_PCPL | UHCHR_PSPL | UHCHR_SSEP2 | |
| UHCHR_SSEP3) & ~(UHCHR_SSEP1 | UHCHR_SSE); |
| /* |
| * wait 10ms after Power on |
| * overcurrent per port |
| * power switch per port |
| */ |
| UHCRHDA = (5<<24) | (1<<11) | (1<<8); /* FIXME: Required? */ |
| |
| return 0; |
| } |
| |
| static struct pxaohci_platform_data pcm990_ohci_platform_data = { |
| .port_mode = PMM_PERPORT_MODE, |
| .init = pcm990_ohci_init, |
| .exit = NULL, |
| }; |
| |
| /* |
| * PXA27x Camera specific stuff |
| */ |
| #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE) |
| static int pcm990_pxacamera_init(struct device *dev) |
| { |
| pxa_gpio_mode(GPIO98_CIF_DD_0_MD); |
| pxa_gpio_mode(GPIO105_CIF_DD_1_MD); |
| pxa_gpio_mode(GPIO104_CIF_DD_2_MD); |
| pxa_gpio_mode(GPIO103_CIF_DD_3_MD); |
| pxa_gpio_mode(GPIO95_CIF_DD_4_MD); |
| pxa_gpio_mode(GPIO94_CIF_DD_5_MD); |
| pxa_gpio_mode(GPIO93_CIF_DD_6_MD); |
| pxa_gpio_mode(GPIO108_CIF_DD_7_MD); |
| pxa_gpio_mode(GPIO107_CIF_DD_8_MD); |
| pxa_gpio_mode(GPIO106_CIF_DD_9_MD); |
| pxa_gpio_mode(GPIO42_CIF_MCLK_MD); |
| pxa_gpio_mode(GPIO45_CIF_PCLK_MD); |
| pxa_gpio_mode(GPIO43_CIF_FV_MD); |
| pxa_gpio_mode(GPIO44_CIF_LV_MD); |
| |
| return 0; |
| } |
| |
| /* |
| * 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 = { |
| .init = pcm990_pxacamera_init, |
| .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 + 1, |
| }; |
| |
| static struct soc_camera_link iclink[] = { |
| { |
| .bus_id = 0, /* Must match with the camera ID above */ |
| .gpio = NR_BUILTIN_GPIO + 1, |
| }, { |
| .bus_id = 0, /* Must match with the camera ID above */ |
| } |
| }; |
| |
| /* Board I2C devices. */ |
| static struct i2c_board_info __initdata pcm990_i2c_devices[] = { |
| { |
| /* Must initialize before the camera(s) */ |
| I2C_BOARD_INFO("pca953x", 0x41), |
| .type = "pca9536", |
| .platform_data = &pca9536_data, |
| }, { |
| I2C_BOARD_INFO("mt9v022", 0x48), |
| .type = "mt9v022", |
| .platform_data = &iclink[0], /* With extender */ |
| }, { |
| I2C_BOARD_INFO("mt9m001", 0x5d), |
| .type = "mt9m001", |
| .platform_data = &iclink[0], /* With extender */ |
| }, |
| }; |
| #endif /* CONFIG_VIDEO_PXA27x ||CONFIG_VIDEO_PXA27x_MODULE */ |
| |
| /* |
| * AC97 support |
| * Note: The connected AC97 mixer also reports interrupts at PCM990_AC97_IRQ |
| */ |
| static struct resource pxa27x_ac97_resources[] = { |
| [0] = { |
| .start = 0x40500000, |
| .end = 0x40500000 + 0xfff, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = IRQ_AC97, |
| .end = IRQ_AC97, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static u64 pxa_ac97_dmamask = 0xffffffffUL; |
| |
| static struct platform_device pxa27x_device_ac97 = { |
| .name = "pxa2xx-ac97", |
| .id = -1, |
| .dev = { |
| .dma_mask = &pxa_ac97_dmamask, |
| .coherent_dma_mask = 0xffffffff, |
| }, |
| .num_resources = ARRAY_SIZE(pxa27x_ac97_resources), |
| .resource = pxa27x_ac97_resources, |
| }; |
| |
| /* |
| * 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) |
| { |
| /* register CPLD access */ |
| iotable_init(pcm990_io_desc, ARRAY_SIZE(pcm990_io_desc)); |
| |
| /* register CPLD's IRQ controller */ |
| pcm990_init_irq(); |
| |
| platform_device_register(&pxa27x_device_ac97); |
| |
| /* MMC */ |
| pxa_set_mci_info(&pcm990_mci_platform_data); |
| |
| /* USB host */ |
| pxa_set_ohci_info(&pcm990_ohci_platform_data); |
| |
| pxa_set_i2c_info(NULL); |
| |
| #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE) |
| pxa_set_camera_info(&pcm990_pxacamera_platform_data); |
| |
| i2c_register_board_info(0, pcm990_i2c_devices, |
| ARRAY_SIZE(pcm990_i2c_devices)); |
| #endif |
| |
| printk(KERN_INFO"PCM-990 Evaluation baseboard initialized\n"); |
| } |