diff options
Diffstat (limited to 'arch/arm/mach-pxa/pcm990-baseboard.c')
| -rw-r--r-- | arch/arm/mach-pxa/pcm990-baseboard.c | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c deleted file mode 100644 index 33a9d2eeca1c..000000000000 --- a/arch/arm/mach-pxa/pcm990-baseboard.c +++ /dev/null @@ -1,408 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * 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) - */ -#include <linux/gpio.h> -#include <linux/irq.h> -#include <linux/platform_device.h> -#include <linux/i2c.h> -#include <linux/platform_data/i2c-pxa.h> -#include <linux/pwm.h> -#include <linux/pwm_backlight.h> - -#include <asm/mach/map.h> -#include "pxa27x.h" -#include <linux/platform_data/asoc-pxa.h> -#include <linux/platform_data/mmc-pxamci.h> -#include <linux/platform_data/usb-ohci-pxa27x.h> -#include "pcm990_baseboard.h" -#include <linux/platform_data/video-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, -}; - -static void __iomem *pcm990_cpld_base; - -static u8 pcm990_cpld_readb(unsigned int reg) -{ - return readb(pcm990_cpld_base + reg); -} - -static void pcm990_cpld_writeb(u8 value, unsigned int reg) -{ - writeb(value, pcm990_cpld_base + reg); -} - -/* - * 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_cpld_writeb(PCM990_CTRL_LCDPWR + PCM990_CTRL_LCDON, - PCM990_CTRL_REG3); - } else { - /* disable LCD-Latches - * power off LCD - */ - pcm990_cpld_writeb(0, PCM990_CTRL_REG3); - } -} -#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 pwm_lookup pcm990_pwm_lookup[] = { - PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770, - PWM_POLARITY_NORMAL), -}; - -static struct platform_pwm_backlight_data pcm990_backlight_data = { - .max_brightness = 1023, - .dft_brightness = 1023, -}; - -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_irq_enabled &= ~(1 << pcm990_irq); - - pcm990_cpld_writeb(pcm990_irq_enabled, PCM990_CTRL_INTMSKENA); -} - -static void pcm990_unmask_irq(struct irq_data *d) -{ - int pcm990_irq = (d->irq - PCM027_IRQ(0)); - u8 val; - - /* the irq can be acknowledged only if deasserted, so it's done here */ - - pcm990_irq_enabled |= (1 << pcm990_irq); - - val = pcm990_cpld_readb(PCM990_CTRL_INTSETCLR); - val |= 1 << pcm990_irq; - pcm990_cpld_writeb(val, PCM990_CTRL_INTSETCLR); - - pcm990_cpld_writeb(pcm990_irq_enabled, PCM990_CTRL_INTMSKENA); -} - -static struct irq_chip pcm990_irq_chip = { - .irq_mask_ack = pcm990_mask_ack_irq, - .irq_unmask = pcm990_unmask_irq, -}; - -static void pcm990_irq_handler(struct irq_desc *desc) -{ - unsigned int irq; - unsigned long pending; - - pending = ~pcm990_cpld_readb(PCM990_CTRL_INTSETCLR); - pending &= 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_cpld_readb(PCM990_CTRL_INTSETCLR); - pending &= 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++) { - irq_set_chip_and_handler(irq, &pcm990_irq_chip, - handle_level_irq); - irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); - } - - /* disable all Interrupts */ - pcm990_cpld_writeb(0x0, PCM990_CTRL_INTMSKENA); - pcm990_cpld_writeb(0xff, PCM990_CTRL_INTSETCLR); - - irq_set_chained_handler(PCM990_CTRL_INT_IRQ, pcm990_irq_handler); - irq_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, 0, - "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 int pcm990_mci_setpower(struct device *dev, unsigned int vdd) -{ - struct pxamci_platform_data *p_d = dev->platform_data; - u8 val; - - val = pcm990_cpld_readb(PCM990_CTRL_REG5); - - if ((1 << vdd) & p_d->ocr_mask) - val |= PCM990_CTRL_MMC2PWR; - else - val &= ~PCM990_CTRL_MMC2PWR; - - pcm990_cpld_writeb(PCM990_CTRL_MMC2PWR, PCM990_CTRL_REG5); - return 0; -} - -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, -}; - -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, -}; - -/* - * 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)); - - pcm990_cpld_base = ioremap(PCM990_CTRL_PHYS, PCM990_CTRL_SIZE); - if (!pcm990_cpld_base) { - pr_err("pcm990: failed to ioremap cpld\n"); - return; - } - - /* register CPLD's IRQ controller */ - pcm990_init_irq(); - -#ifndef CONFIG_PCM990_DISPLAY_NONE - pxa_set_fb_info(NULL, &pcm990_fbinfo); -#endif - pwm_add_table(pcm990_pwm_lookup, ARRAY_SIZE(pcm990_pwm_lookup)); - 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); - - printk(KERN_INFO "PCM-990 Evaluation baseboard initialized\n"); -} |