f54005b508
After converting the PXA driver to use GPIO descriptors for card detect and write protect it is relatively simple to convert it to also use a descriptor for getting the optional power control GPIO. The polarity inversion flag can also go away from the platform data since this is indicated in the GPIO machine descriptor table. Cc: Daniel Mack <daniel@zonque.org> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Andrea Adami <andrea.adami@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
292 lines
6.1 KiB
C
292 lines
6.1 KiB
C
/*
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* linux/arch/arm/mach-pxa/idp.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
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*
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* 2001-09-13: Cliff Brake <cbrake@accelent.com>
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* Initial code
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*
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* 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
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* <http://www.vibren.com> <http://bec-systems.com>
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* Updated for 2.6 kernel
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*
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*/
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/leds.h>
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#include <linux/platform_device.h>
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#include <linux/fb.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include "pxa25x.h"
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#include "idp.h"
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#include <linux/platform_data/video-pxafb.h>
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#include <mach/bitfield.h>
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/smc91x.h>
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#include "generic.h"
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#include "devices.h"
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/* TODO:
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* - add pxa2xx_audio_ops_t device structure
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* - Ethernet interrupt
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*/
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static unsigned long idp_pin_config[] __initdata = {
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/* LCD */
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GPIOxx_LCD_DSTN_16BPP,
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/* BTUART */
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GPIO42_BTUART_RXD,
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GPIO43_BTUART_TXD,
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GPIO44_BTUART_CTS,
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GPIO45_BTUART_RTS,
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/* STUART */
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GPIO46_STUART_RXD,
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GPIO47_STUART_TXD,
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/* MMC */
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GPIO6_MMC_CLK,
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GPIO8_MMC_CS0,
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/* Ethernet */
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GPIO33_nCS_5, /* Ethernet CS */
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GPIO4_GPIO, /* Ethernet IRQ */
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};
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static struct resource smc91x_resources[] = {
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[0] = {
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.start = (IDP_ETH_PHYS + 0x300),
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.end = (IDP_ETH_PHYS + 0xfffff),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_GPIO_TO_IRQ(4),
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.end = PXA_GPIO_TO_IRQ(4),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct smc91x_platdata smc91x_platdata = {
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.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
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SMC91X_USE_DMA | SMC91X_NOWAIT,
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.pxa_u16_align4 = true,
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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.dev.platform_data = &smc91x_platdata,
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};
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static void idp_backlight_power(int on)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<1);
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} else {
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IDP_CPLD_LCD &= ~(1<<1);
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}
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}
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static void idp_vlcd(int on)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<2);
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} else {
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IDP_CPLD_LCD &= ~(1<<2);
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}
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}
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static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<0);
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} else {
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IDP_CPLD_LCD &= ~(1<<0);
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}
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/* call idp_vlcd for now as core driver does not support
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* both power and vlcd hooks. Note, this is not technically
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* the correct sequence, but seems to work. Disclaimer:
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* this may eventually damage the display.
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*/
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idp_vlcd(on);
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}
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static struct pxafb_mode_info sharp_lm8v31_mode = {
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.pixclock = 270000,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.hsync_len = 1,
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.left_margin = 3,
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.right_margin = 3,
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.vsync_len = 1,
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.upper_margin = 0,
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.lower_margin = 0,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info sharp_lm8v31 = {
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.modes = &sharp_lm8v31_mode,
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.num_modes = 1,
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.cmap_inverse = 0,
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.cmap_static = 0,
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.lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_AC_BIAS_FREQ(255),
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.pxafb_backlight_power = &idp_backlight_power,
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.pxafb_lcd_power = &idp_lcd_power
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};
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static struct pxamci_platform_data idp_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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};
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static void __init idp_init(void)
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{
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printk("idp_init()\n");
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pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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platform_device_register(&smc91x_device);
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//platform_device_register(&mst_audio_device);
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pxa_set_fb_info(NULL, &sharp_lm8v31);
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pxa_set_mci_info(&idp_mci_platform_data);
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}
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static struct map_desc idp_io_desc[] __initdata = {
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{
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.virtual = IDP_COREVOLT_VIRT,
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.pfn = __phys_to_pfn(IDP_COREVOLT_PHYS),
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.length = IDP_COREVOLT_SIZE,
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.type = MT_DEVICE
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}, {
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.virtual = IDP_CPLD_VIRT,
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.pfn = __phys_to_pfn(IDP_CPLD_PHYS),
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.length = IDP_CPLD_SIZE,
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.type = MT_DEVICE
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}
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};
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static void __init idp_map_io(void)
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{
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pxa25x_map_io();
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iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
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}
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/* LEDs */
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#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
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struct idp_led {
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struct led_classdev cdev;
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u8 mask;
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};
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/*
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* The triggers lines up below will only be used if the
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* LED triggers are compiled in.
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*/
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static const struct {
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const char *name;
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const char *trigger;
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} idp_leds[] = {
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{ "idp:green", "heartbeat", },
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{ "idp:red", "cpu0", },
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};
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static void idp_led_set(struct led_classdev *cdev,
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enum led_brightness b)
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{
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struct idp_led *led = container_of(cdev,
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struct idp_led, cdev);
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u32 reg = IDP_CPLD_LED_CONTROL;
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if (b != LED_OFF)
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reg &= ~led->mask;
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else
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reg |= led->mask;
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IDP_CPLD_LED_CONTROL = reg;
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}
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static enum led_brightness idp_led_get(struct led_classdev *cdev)
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{
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struct idp_led *led = container_of(cdev,
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struct idp_led, cdev);
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return (IDP_CPLD_LED_CONTROL & led->mask) ? LED_OFF : LED_FULL;
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}
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static int __init idp_leds_init(void)
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{
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int i;
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if (!machine_is_pxa_idp())
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return -ENODEV;
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for (i = 0; i < ARRAY_SIZE(idp_leds); i++) {
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struct idp_led *led;
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led = kzalloc(sizeof(*led), GFP_KERNEL);
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if (!led)
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break;
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led->cdev.name = idp_leds[i].name;
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led->cdev.brightness_set = idp_led_set;
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led->cdev.brightness_get = idp_led_get;
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led->cdev.default_trigger = idp_leds[i].trigger;
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if (i == 0)
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led->mask = IDP_HB_LED;
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else
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led->mask = IDP_BUSY_LED;
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if (led_classdev_register(NULL, &led->cdev) < 0) {
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kfree(led);
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break;
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}
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}
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return 0;
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}
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/*
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* Since we may have triggers on any subsystem, defer registration
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* until after subsystem_init.
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*/
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fs_initcall(idp_leds_init);
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#endif
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MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
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/* Maintainer: Vibren Technologies */
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.map_io = idp_map_io,
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.nr_irqs = PXA_NR_IRQS,
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.init_irq = pxa25x_init_irq,
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.handle_irq = pxa25x_handle_irq,
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.init_time = pxa_timer_init,
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.init_machine = idp_init,
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.restart = pxa_restart,
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MACHINE_END
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