530 lines
12 KiB
C
530 lines
12 KiB
C
/*
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* linux/arch/arm/mach-pxa/cm-x2xx.c
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*
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* Copyright (C) 2008 CompuLab, Ltd.
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* Mike Rapoport <mike@compulab.co.il>
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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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#include <linux/platform_device.h>
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#include <linux/syscore_ops.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/dm9000.h>
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#include <linux/leds.h>
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#include <asm/mach/arch.h>
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#include <asm/mach-types.h>
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#include <asm/mach/map.h>
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#include <mach/pxa25x.h>
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#undef GPIO24_SSP1_SFRM
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#include <mach/pxa27x.h>
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#include <mach/audio.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <mach/smemc.h>
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#include <asm/hardware/it8152.h>
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#include "generic.h"
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#include "cm-x2xx-pci.h"
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extern void cmx255_init(void);
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extern void cmx270_init(void);
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/* reserve IRQs for IT8152 */
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#define CMX2XX_NR_IRQS (IRQ_BOARD_START + 40)
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/* virtual addresses for statically mapped regions */
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#define CMX2XX_VIRT_BASE (void __iomem *)(0xe8000000)
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#define CMX2XX_IT8152_VIRT (CMX2XX_VIRT_BASE)
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/* physical address if local-bus attached devices */
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#define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
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#define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
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/* leds */
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#define CMX255_GPIO_RED (27)
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#define CMX255_GPIO_GREEN (32)
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#define CMX270_GPIO_RED (93)
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#define CMX270_GPIO_GREEN (94)
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/* GPIO IRQ usage */
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#define GPIO22_ETHIRQ (22)
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#define GPIO10_ETHIRQ (10)
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#define CMX255_GPIO_IT8152_IRQ (0)
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#define CMX270_GPIO_IT8152_IRQ (22)
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#define CMX255_ETHIRQ PXA_GPIO_TO_IRQ(GPIO22_ETHIRQ)
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#define CMX270_ETHIRQ PXA_GPIO_TO_IRQ(GPIO10_ETHIRQ)
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#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
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static struct resource cmx255_dm9000_resource[] = {
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[0] = {
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.start = CMX255_DM9000_PHYS_BASE,
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.end = CMX255_DM9000_PHYS_BASE + 3,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = CMX255_DM9000_PHYS_BASE + 4,
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.end = CMX255_DM9000_PHYS_BASE + 4 + 500,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = CMX255_ETHIRQ,
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.end = CMX255_ETHIRQ,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct resource cmx270_dm9000_resource[] = {
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[0] = {
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.start = CMX270_DM9000_PHYS_BASE,
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.end = CMX270_DM9000_PHYS_BASE + 3,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = CMX270_DM9000_PHYS_BASE + 8,
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.end = CMX270_DM9000_PHYS_BASE + 8 + 500,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = CMX270_ETHIRQ,
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.end = CMX270_ETHIRQ,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct dm9000_plat_data cmx270_dm9000_platdata = {
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.flags = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
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};
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static struct platform_device cmx2xx_dm9000_device = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(cmx270_dm9000_resource),
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.dev = {
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.platform_data = &cmx270_dm9000_platdata,
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}
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};
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static void __init cmx2xx_init_dm9000(void)
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{
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if (cpu_is_pxa25x())
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cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
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else
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cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
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platform_device_register(&cmx2xx_dm9000_device);
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}
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#else
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static inline void cmx2xx_init_dm9000(void) {}
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#endif
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/* UCB1400 touchscreen controller */
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#if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
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static struct platform_device cmx2xx_ts_device = {
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.name = "ucb1400_core",
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.id = -1,
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};
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static void __init cmx2xx_init_touchscreen(void)
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{
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platform_device_register(&cmx2xx_ts_device);
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}
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#else
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static inline void cmx2xx_init_touchscreen(void) {}
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#endif
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/* CM-X270 LEDs */
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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static struct gpio_led cmx2xx_leds[] = {
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[0] = {
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.name = "cm-x2xx:red",
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.default_trigger = "nand-disk",
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.active_low = 1,
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},
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[1] = {
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.name = "cm-x2xx:green",
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.default_trigger = "heartbeat",
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
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.num_leds = ARRAY_SIZE(cmx2xx_leds),
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.leds = cmx2xx_leds,
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};
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static struct platform_device cmx2xx_led_device = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &cmx2xx_gpio_led_pdata,
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},
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};
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static void __init cmx2xx_init_leds(void)
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{
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if (cpu_is_pxa25x()) {
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cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
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cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
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} else {
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cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
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cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
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}
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platform_device_register(&cmx2xx_led_device);
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}
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#else
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static inline void cmx2xx_init_leds(void) {}
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#endif
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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/*
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Display definitions
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keep these for backwards compatibility, although symbolic names (as
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e.g. in lpd270.c) looks better
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*/
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#define MTYPE_STN320x240 0
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#define MTYPE_TFT640x480 1
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#define MTYPE_CRT640x480 2
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#define MTYPE_CRT800x600 3
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#define MTYPE_TFT320x240 6
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#define MTYPE_STN640x480 7
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static struct pxafb_mode_info generic_stn_320x240_mode = {
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.pixclock = 76923,
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.bpp = 8,
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.xres = 320,
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.yres = 240,
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.hsync_len = 3,
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.vsync_len = 2,
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.left_margin = 3,
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.upper_margin = 0,
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.right_margin = 3,
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.lower_margin = 0,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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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 generic_stn_320x240 = {
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.modes = &generic_stn_320x240_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
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LCD_AC_BIAS_FREQ(0xff),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_tft_640x480_mode = {
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.pixclock = 38461,
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.bpp = 8,
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.xres = 640,
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.yres = 480,
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.hsync_len = 60,
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.vsync_len = 2,
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.left_margin = 70,
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.upper_margin = 10,
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.right_margin = 70,
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.lower_margin = 5,
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.sync = 0,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_tft_640x480 = {
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.modes = &generic_tft_640x480_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
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LCD_AC_BIAS_FREQ(0xff),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_crt_640x480_mode = {
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.pixclock = 38461,
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.bpp = 8,
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.xres = 640,
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.yres = 480,
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.hsync_len = 63,
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.vsync_len = 2,
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.left_margin = 81,
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.upper_margin = 33,
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.right_margin = 16,
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.lower_margin = 10,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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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 generic_crt_640x480 = {
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.modes = &generic_crt_640x480_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_crt_800x600_mode = {
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.pixclock = 28846,
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.bpp = 8,
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.xres = 800,
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.yres = 600,
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.hsync_len = 63,
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.vsync_len = 2,
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.left_margin = 26,
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.upper_margin = 21,
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.right_margin = 26,
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.lower_margin = 11,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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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 generic_crt_800x600 = {
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.modes = &generic_crt_800x600_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_tft_320x240_mode = {
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.pixclock = 134615,
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.bpp = 16,
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.xres = 320,
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.yres = 240,
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.hsync_len = 63,
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.vsync_len = 7,
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.left_margin = 75,
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.upper_margin = 0,
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.right_margin = 15,
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.lower_margin = 15,
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.sync = 0,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info generic_tft_320x240 = {
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.modes = &generic_tft_320x240_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mode_info generic_stn_640x480_mode = {
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.pixclock = 57692,
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.bpp = 8,
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.xres = 640,
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.yres = 480,
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.hsync_len = 4,
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.vsync_len = 2,
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.left_margin = 10,
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.upper_margin = 5,
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.right_margin = 10,
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.lower_margin = 5,
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.sync = (FB_SYNC_HOR_HIGH_ACT |
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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 generic_stn_640x480 = {
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.modes = &generic_stn_640x480_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
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.cmap_inverse = 0,
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.cmap_static = 0,
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};
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static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
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static int __init cmx2xx_set_display(char *str)
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{
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int disp_type = simple_strtol(str, NULL, 0);
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switch (disp_type) {
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case MTYPE_STN320x240:
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cmx2xx_display = &generic_stn_320x240;
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break;
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case MTYPE_TFT640x480:
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cmx2xx_display = &generic_tft_640x480;
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break;
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case MTYPE_CRT640x480:
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cmx2xx_display = &generic_crt_640x480;
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break;
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case MTYPE_CRT800x600:
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cmx2xx_display = &generic_crt_800x600;
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break;
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case MTYPE_TFT320x240:
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cmx2xx_display = &generic_tft_320x240;
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break;
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case MTYPE_STN640x480:
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cmx2xx_display = &generic_stn_640x480;
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break;
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default: /* fallback to CRT 640x480 */
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cmx2xx_display = &generic_crt_640x480;
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break;
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}
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return 1;
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}
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/*
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This should be done really early to get proper configuration for
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frame buffer.
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Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
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has limitied line length for kernel command line, and also it will
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break compatibitlty with proprietary releases already in field.
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*/
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__setup("monitor=", cmx2xx_set_display);
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static void __init cmx2xx_init_display(void)
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{
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pxa_set_fb_info(NULL, cmx2xx_display);
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}
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#else
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static inline void cmx2xx_init_display(void) {}
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#endif
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#ifdef CONFIG_PM
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static unsigned long sleep_save_msc[10];
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static int cmx2xx_suspend(void)
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{
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cmx2xx_pci_suspend();
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/* save MSC registers */
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sleep_save_msc[0] = __raw_readl(MSC0);
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sleep_save_msc[1] = __raw_readl(MSC1);
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sleep_save_msc[2] = __raw_readl(MSC2);
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/* setup power saving mode registers */
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PCFR = 0x0;
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PSLR = 0xff400000;
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PMCR = 0x00000005;
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PWER = 0x80000000;
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PFER = 0x00000000;
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PRER = 0x00000000;
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PGSR0 = 0xC0018800;
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PGSR1 = 0x004F0002;
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PGSR2 = 0x6021C000;
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PGSR3 = 0x00020000;
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return 0;
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}
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static void cmx2xx_resume(void)
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{
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cmx2xx_pci_resume();
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/* restore MSC registers */
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__raw_writel(sleep_save_msc[0], MSC0);
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__raw_writel(sleep_save_msc[1], MSC1);
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__raw_writel(sleep_save_msc[2], MSC2);
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}
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static struct syscore_ops cmx2xx_pm_syscore_ops = {
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.resume = cmx2xx_resume,
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.suspend = cmx2xx_suspend,
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};
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static int __init cmx2xx_pm_init(void)
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{
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register_syscore_ops(&cmx2xx_pm_syscore_ops);
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return 0;
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}
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#else
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static int __init cmx2xx_pm_init(void) { return 0; }
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#endif
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#if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
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static void __init cmx2xx_init_ac97(void)
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{
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pxa_set_ac97_info(NULL);
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}
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#else
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static inline void cmx2xx_init_ac97(void) {}
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#endif
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static void __init cmx2xx_init(void)
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{
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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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cmx2xx_pm_init();
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if (cpu_is_pxa25x())
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cmx255_init();
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else
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cmx270_init();
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cmx2xx_init_dm9000();
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cmx2xx_init_display();
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cmx2xx_init_ac97();
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cmx2xx_init_touchscreen();
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cmx2xx_init_leds();
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}
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static void __init cmx2xx_init_irq(void)
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{
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if (cpu_is_pxa25x()) {
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pxa25x_init_irq();
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cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
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} else {
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pxa27x_init_irq();
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cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
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}
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}
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#ifdef CONFIG_PCI
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/* Map PCI companion statically */
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static struct map_desc cmx2xx_io_desc[] __initdata = {
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[0] = { /* PCI bridge */
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.virtual = (unsigned long)CMX2XX_IT8152_VIRT,
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.pfn = __phys_to_pfn(PXA_CS4_PHYS),
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.length = SZ_64M,
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.type = MT_DEVICE
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},
|
|
};
|
|
|
|
static void __init cmx2xx_map_io(void)
|
|
{
|
|
if (cpu_is_pxa25x())
|
|
pxa25x_map_io();
|
|
|
|
if (cpu_is_pxa27x())
|
|
pxa27x_map_io();
|
|
|
|
iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
|
|
|
|
it8152_base_address = CMX2XX_IT8152_VIRT;
|
|
}
|
|
#else
|
|
static void __init cmx2xx_map_io(void)
|
|
{
|
|
if (cpu_is_pxa25x())
|
|
pxa25x_map_io();
|
|
|
|
if (cpu_is_pxa27x())
|
|
pxa27x_map_io();
|
|
}
|
|
#endif
|
|
|
|
MACHINE_START(ARMCORE, "Compulab CM-X2XX")
|
|
.atag_offset = 0x100,
|
|
.map_io = cmx2xx_map_io,
|
|
.nr_irqs = CMX2XX_NR_IRQS,
|
|
.init_irq = cmx2xx_init_irq,
|
|
/* NOTE: pxa25x_handle_irq() works on PXA27x w/o camera support */
|
|
.handle_irq = pxa25x_handle_irq,
|
|
.init_time = pxa_timer_init,
|
|
.init_machine = cmx2xx_init,
|
|
#ifdef CONFIG_PCI
|
|
.dma_zone_size = SZ_64M,
|
|
#endif
|
|
.restart = pxa_restart,
|
|
MACHINE_END
|