2 * linux/arch/arm/mach-pxa/cm-x2xx.c
4 * Copyright (C) 2008 CompuLab, Ltd.
5 * Mike Rapoport <mike@compulab.co.il>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/platform_device.h>
13 #include <linux/sysdev.h>
14 #include <linux/irq.h>
15 #include <linux/gpio.h>
17 #include <linux/dm9000.h>
18 #include <linux/leds.h>
20 #include <asm/mach/arch.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/map.h>
24 #include <mach/pxa2xx-regs.h>
25 #include <mach/audio.h>
26 #include <mach/pxafb.h>
27 #include <mach/smemc.h>
29 #include <asm/hardware/it8152.h>
32 #include "cm-x2xx-pci.h"
34 extern void cmx255_init(void);
35 extern void cmx270_init(void);
37 /* reserve IRQs for IT8152 */
38 #define CMX2XX_NR_IRQS (IRQ_BOARD_START + 40)
40 /* virtual addresses for statically mapped regions */
41 #define CMX2XX_VIRT_BASE (0xe8000000)
42 #define CMX2XX_IT8152_VIRT (CMX2XX_VIRT_BASE)
44 /* physical address if local-bus attached devices */
45 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
46 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
49 #define CMX255_GPIO_RED (27)
50 #define CMX255_GPIO_GREEN (32)
51 #define CMX270_GPIO_RED (93)
52 #define CMX270_GPIO_GREEN (94)
55 #define GPIO22_ETHIRQ (22)
56 #define GPIO10_ETHIRQ (10)
57 #define CMX255_GPIO_IT8152_IRQ (0)
58 #define CMX270_GPIO_IT8152_IRQ (22)
60 #define CMX255_ETHIRQ IRQ_GPIO(GPIO22_ETHIRQ)
61 #define CMX270_ETHIRQ IRQ_GPIO(GPIO10_ETHIRQ)
63 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
64 static struct resource cmx255_dm9000_resource[] = {
66 .start = CMX255_DM9000_PHYS_BASE,
67 .end = CMX255_DM9000_PHYS_BASE + 3,
68 .flags = IORESOURCE_MEM,
71 .start = CMX255_DM9000_PHYS_BASE + 4,
72 .end = CMX255_DM9000_PHYS_BASE + 4 + 500,
73 .flags = IORESOURCE_MEM,
76 .start = CMX255_ETHIRQ,
78 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
82 static struct resource cmx270_dm9000_resource[] = {
84 .start = CMX270_DM9000_PHYS_BASE,
85 .end = CMX270_DM9000_PHYS_BASE + 3,
86 .flags = IORESOURCE_MEM,
89 .start = CMX270_DM9000_PHYS_BASE + 8,
90 .end = CMX270_DM9000_PHYS_BASE + 8 + 500,
91 .flags = IORESOURCE_MEM,
94 .start = CMX270_ETHIRQ,
96 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
100 static struct dm9000_plat_data cmx270_dm9000_platdata = {
101 .flags = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
104 static struct platform_device cmx2xx_dm9000_device = {
107 .num_resources = ARRAY_SIZE(cmx270_dm9000_resource),
109 .platform_data = &cmx270_dm9000_platdata,
113 static void __init cmx2xx_init_dm9000(void)
116 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
118 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
119 platform_device_register(&cmx2xx_dm9000_device);
122 static inline void cmx2xx_init_dm9000(void) {}
125 /* UCB1400 touchscreen controller */
126 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
127 static struct platform_device cmx2xx_ts_device = {
128 .name = "ucb1400_core",
132 static void __init cmx2xx_init_touchscreen(void)
134 platform_device_register(&cmx2xx_ts_device);
137 static inline void cmx2xx_init_touchscreen(void) {}
141 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
142 static struct gpio_led cmx2xx_leds[] = {
144 .name = "cm-x2xx:red",
145 .default_trigger = "nand-disk",
149 .name = "cm-x2xx:green",
150 .default_trigger = "heartbeat",
155 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
156 .num_leds = ARRAY_SIZE(cmx2xx_leds),
160 static struct platform_device cmx2xx_led_device = {
164 .platform_data = &cmx2xx_gpio_led_pdata,
168 static void __init cmx2xx_init_leds(void)
170 if (cpu_is_pxa25x()) {
171 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
172 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
174 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
175 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
177 platform_device_register(&cmx2xx_led_device);
180 static inline void cmx2xx_init_leds(void) {}
183 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
186 keep these for backwards compatibility, although symbolic names (as
187 e.g. in lpd270.c) looks better
189 #define MTYPE_STN320x240 0
190 #define MTYPE_TFT640x480 1
191 #define MTYPE_CRT640x480 2
192 #define MTYPE_CRT800x600 3
193 #define MTYPE_TFT320x240 6
194 #define MTYPE_STN640x480 7
196 static struct pxafb_mode_info generic_stn_320x240_mode = {
207 .sync = (FB_SYNC_HOR_HIGH_ACT |
208 FB_SYNC_VERT_HIGH_ACT),
212 static struct pxafb_mach_info generic_stn_320x240 = {
213 .modes = &generic_stn_320x240_mode,
215 .lcd_conn = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
216 LCD_AC_BIAS_FREQ(0xff),
221 static struct pxafb_mode_info generic_tft_640x480_mode = {
236 static struct pxafb_mach_info generic_tft_640x480 = {
237 .modes = &generic_tft_640x480_mode,
239 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
240 LCD_AC_BIAS_FREQ(0xff),
245 static struct pxafb_mode_info generic_crt_640x480_mode = {
256 .sync = (FB_SYNC_HOR_HIGH_ACT |
257 FB_SYNC_VERT_HIGH_ACT),
261 static struct pxafb_mach_info generic_crt_640x480 = {
262 .modes = &generic_crt_640x480_mode,
264 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
269 static struct pxafb_mode_info generic_crt_800x600_mode = {
280 .sync = (FB_SYNC_HOR_HIGH_ACT |
281 FB_SYNC_VERT_HIGH_ACT),
285 static struct pxafb_mach_info generic_crt_800x600 = {
286 .modes = &generic_crt_800x600_mode,
288 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
293 static struct pxafb_mode_info generic_tft_320x240_mode = {
308 static struct pxafb_mach_info generic_tft_320x240 = {
309 .modes = &generic_tft_320x240_mode,
311 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
316 static struct pxafb_mode_info generic_stn_640x480_mode = {
327 .sync = (FB_SYNC_HOR_HIGH_ACT |
328 FB_SYNC_VERT_HIGH_ACT),
332 static struct pxafb_mach_info generic_stn_640x480 = {
333 .modes = &generic_stn_640x480_mode,
335 .lcd_conn = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
340 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
342 static int __init cmx2xx_set_display(char *str)
344 int disp_type = simple_strtol(str, NULL, 0);
346 case MTYPE_STN320x240:
347 cmx2xx_display = &generic_stn_320x240;
349 case MTYPE_TFT640x480:
350 cmx2xx_display = &generic_tft_640x480;
352 case MTYPE_CRT640x480:
353 cmx2xx_display = &generic_crt_640x480;
355 case MTYPE_CRT800x600:
356 cmx2xx_display = &generic_crt_800x600;
358 case MTYPE_TFT320x240:
359 cmx2xx_display = &generic_tft_320x240;
361 case MTYPE_STN640x480:
362 cmx2xx_display = &generic_stn_640x480;
364 default: /* fallback to CRT 640x480 */
365 cmx2xx_display = &generic_crt_640x480;
372 This should be done really early to get proper configuration for
374 Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
375 has limitied line length for kernel command line, and also it will
376 break compatibitlty with proprietary releases already in field.
378 __setup("monitor=", cmx2xx_set_display);
380 static void __init cmx2xx_init_display(void)
382 set_pxa_fb_info(cmx2xx_display);
385 static inline void cmx2xx_init_display(void) {}
389 static unsigned long sleep_save_msc[10];
391 static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state)
393 cmx2xx_pci_suspend();
395 /* save MSC registers */
396 sleep_save_msc[0] = __raw_readl(MSC0);
397 sleep_save_msc[1] = __raw_readl(MSC1);
398 sleep_save_msc[2] = __raw_readl(MSC2);
400 /* setup power saving mode registers */
415 static int cmx2xx_resume(struct sys_device *dev)
419 /* restore MSC registers */
420 __raw_writel(sleep_save_msc[0], MSC0);
421 __raw_writel(sleep_save_msc[1], MSC1);
422 __raw_writel(sleep_save_msc[2], MSC2);
427 static struct sysdev_class cmx2xx_pm_sysclass = {
429 .resume = cmx2xx_resume,
430 .suspend = cmx2xx_suspend,
433 static struct sys_device cmx2xx_pm_device = {
434 .cls = &cmx2xx_pm_sysclass,
437 static int __init cmx2xx_pm_init(void)
440 error = sysdev_class_register(&cmx2xx_pm_sysclass);
442 error = sysdev_register(&cmx2xx_pm_device);
446 static int __init cmx2xx_pm_init(void) { return 0; }
449 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
450 static void __init cmx2xx_init_ac97(void)
452 pxa_set_ac97_info(NULL);
455 static inline void cmx2xx_init_ac97(void) {}
458 static void __init cmx2xx_init(void)
460 pxa_set_ffuart_info(NULL);
461 pxa_set_btuart_info(NULL);
462 pxa_set_stuart_info(NULL);
471 cmx2xx_init_dm9000();
472 cmx2xx_init_display();
474 cmx2xx_init_touchscreen();
478 static void __init cmx2xx_init_irq(void)
480 if (cpu_is_pxa25x()) {
482 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
485 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
490 /* Map PCI companion statically */
491 static struct map_desc cmx2xx_io_desc[] __initdata = {
492 [0] = { /* PCI bridge */
493 .virtual = CMX2XX_IT8152_VIRT,
494 .pfn = __phys_to_pfn(PXA_CS4_PHYS),
500 static void __init cmx2xx_map_io(void)
508 iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
510 it8152_base_address = CMX2XX_IT8152_VIRT;
513 static void __init cmx2xx_map_io(void)
523 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
524 .boot_params = 0xa0000100,
525 .map_io = cmx2xx_map_io,
526 .nr_irqs = CMX2XX_NR_IRQS,
527 .init_irq = cmx2xx_init_irq,
529 .init_machine = cmx2xx_init,