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/syscore_ops.h>
14 #include <linux/irq.h>
15 #include <linux/gpio.h>
16 #include <linux/regulator/machine.h>
18 #include <linux/dm9000.h>
19 #include <linux/leds.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/map.h>
25 #include <mach/pxa25x.h>
26 #undef GPIO24_SSP1_SFRM
27 #include <mach/pxa27x.h>
28 #include <mach/audio.h>
29 #include <linux/platform_data/video-pxafb.h>
30 #include <mach/smemc.h>
32 #include <asm/hardware/it8152.h>
35 #include "cm-x2xx-pci.h"
37 extern void cmx255_init(void);
38 extern void cmx270_init(void);
40 /* reserve IRQs for IT8152 */
41 #define CMX2XX_NR_IRQS (IRQ_BOARD_START + 40)
43 /* virtual addresses for statically mapped regions */
44 #define CMX2XX_VIRT_BASE (void __iomem *)(0xe8000000)
45 #define CMX2XX_IT8152_VIRT (CMX2XX_VIRT_BASE)
47 /* physical address if local-bus attached devices */
48 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
49 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
52 #define CMX255_GPIO_RED (27)
53 #define CMX255_GPIO_GREEN (32)
54 #define CMX270_GPIO_RED (93)
55 #define CMX270_GPIO_GREEN (94)
58 #define GPIO22_ETHIRQ (22)
59 #define GPIO10_ETHIRQ (10)
60 #define CMX255_GPIO_IT8152_IRQ (0)
61 #define CMX270_GPIO_IT8152_IRQ (22)
63 #define CMX255_ETHIRQ PXA_GPIO_TO_IRQ(GPIO22_ETHIRQ)
64 #define CMX270_ETHIRQ PXA_GPIO_TO_IRQ(GPIO10_ETHIRQ)
66 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
67 static struct resource cmx255_dm9000_resource[] = {
69 .start = CMX255_DM9000_PHYS_BASE,
70 .end = CMX255_DM9000_PHYS_BASE + 3,
71 .flags = IORESOURCE_MEM,
74 .start = CMX255_DM9000_PHYS_BASE + 4,
75 .end = CMX255_DM9000_PHYS_BASE + 4 + 500,
76 .flags = IORESOURCE_MEM,
79 .start = CMX255_ETHIRQ,
81 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
85 static struct resource cmx270_dm9000_resource[] = {
87 .start = CMX270_DM9000_PHYS_BASE,
88 .end = CMX270_DM9000_PHYS_BASE + 3,
89 .flags = IORESOURCE_MEM,
92 .start = CMX270_DM9000_PHYS_BASE + 8,
93 .end = CMX270_DM9000_PHYS_BASE + 8 + 500,
94 .flags = IORESOURCE_MEM,
97 .start = CMX270_ETHIRQ,
99 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
103 static struct dm9000_plat_data cmx270_dm9000_platdata = {
104 .flags = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
107 static struct platform_device cmx2xx_dm9000_device = {
110 .num_resources = ARRAY_SIZE(cmx270_dm9000_resource),
112 .platform_data = &cmx270_dm9000_platdata,
116 static void __init cmx2xx_init_dm9000(void)
119 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
121 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
122 platform_device_register(&cmx2xx_dm9000_device);
125 static inline void cmx2xx_init_dm9000(void) {}
128 /* UCB1400 touchscreen controller */
129 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
130 static struct platform_device cmx2xx_ts_device = {
131 .name = "ucb1400_core",
135 static void __init cmx2xx_init_touchscreen(void)
137 platform_device_register(&cmx2xx_ts_device);
140 static inline void cmx2xx_init_touchscreen(void) {}
144 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
145 static struct gpio_led cmx2xx_leds[] = {
147 .name = "cm-x2xx:red",
148 .default_trigger = "nand-disk",
152 .name = "cm-x2xx:green",
153 .default_trigger = "heartbeat",
158 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
159 .num_leds = ARRAY_SIZE(cmx2xx_leds),
163 static struct platform_device cmx2xx_led_device = {
167 .platform_data = &cmx2xx_gpio_led_pdata,
171 static void __init cmx2xx_init_leds(void)
173 if (cpu_is_pxa25x()) {
174 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
175 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
177 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
178 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
180 platform_device_register(&cmx2xx_led_device);
183 static inline void cmx2xx_init_leds(void) {}
186 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
189 keep these for backwards compatibility, although symbolic names (as
190 e.g. in lpd270.c) looks better
192 #define MTYPE_STN320x240 0
193 #define MTYPE_TFT640x480 1
194 #define MTYPE_CRT640x480 2
195 #define MTYPE_CRT800x600 3
196 #define MTYPE_TFT320x240 6
197 #define MTYPE_STN640x480 7
199 static struct pxafb_mode_info generic_stn_320x240_mode = {
210 .sync = (FB_SYNC_HOR_HIGH_ACT |
211 FB_SYNC_VERT_HIGH_ACT),
215 static struct pxafb_mach_info generic_stn_320x240 = {
216 .modes = &generic_stn_320x240_mode,
218 .lcd_conn = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
219 LCD_AC_BIAS_FREQ(0xff),
224 static struct pxafb_mode_info generic_tft_640x480_mode = {
239 static struct pxafb_mach_info generic_tft_640x480 = {
240 .modes = &generic_tft_640x480_mode,
242 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
243 LCD_AC_BIAS_FREQ(0xff),
248 static struct pxafb_mode_info generic_crt_640x480_mode = {
259 .sync = (FB_SYNC_HOR_HIGH_ACT |
260 FB_SYNC_VERT_HIGH_ACT),
264 static struct pxafb_mach_info generic_crt_640x480 = {
265 .modes = &generic_crt_640x480_mode,
267 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
272 static struct pxafb_mode_info generic_crt_800x600_mode = {
283 .sync = (FB_SYNC_HOR_HIGH_ACT |
284 FB_SYNC_VERT_HIGH_ACT),
288 static struct pxafb_mach_info generic_crt_800x600 = {
289 .modes = &generic_crt_800x600_mode,
291 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
296 static struct pxafb_mode_info generic_tft_320x240_mode = {
311 static struct pxafb_mach_info generic_tft_320x240 = {
312 .modes = &generic_tft_320x240_mode,
314 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
319 static struct pxafb_mode_info generic_stn_640x480_mode = {
330 .sync = (FB_SYNC_HOR_HIGH_ACT |
331 FB_SYNC_VERT_HIGH_ACT),
335 static struct pxafb_mach_info generic_stn_640x480 = {
336 .modes = &generic_stn_640x480_mode,
338 .lcd_conn = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
343 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
345 static int __init cmx2xx_set_display(char *str)
347 int disp_type = simple_strtol(str, NULL, 0);
349 case MTYPE_STN320x240:
350 cmx2xx_display = &generic_stn_320x240;
352 case MTYPE_TFT640x480:
353 cmx2xx_display = &generic_tft_640x480;
355 case MTYPE_CRT640x480:
356 cmx2xx_display = &generic_crt_640x480;
358 case MTYPE_CRT800x600:
359 cmx2xx_display = &generic_crt_800x600;
361 case MTYPE_TFT320x240:
362 cmx2xx_display = &generic_tft_320x240;
364 case MTYPE_STN640x480:
365 cmx2xx_display = &generic_stn_640x480;
367 default: /* fallback to CRT 640x480 */
368 cmx2xx_display = &generic_crt_640x480;
375 This should be done really early to get proper configuration for
377 Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
378 has limitied line length for kernel command line, and also it will
379 break compatibitlty with proprietary releases already in field.
381 __setup("monitor=", cmx2xx_set_display);
383 static void __init cmx2xx_init_display(void)
385 pxa_set_fb_info(NULL, cmx2xx_display);
388 static inline void cmx2xx_init_display(void) {}
392 static unsigned long sleep_save_msc[10];
394 static int cmx2xx_suspend(void)
396 cmx2xx_pci_suspend();
398 /* save MSC registers */
399 sleep_save_msc[0] = __raw_readl(MSC0);
400 sleep_save_msc[1] = __raw_readl(MSC1);
401 sleep_save_msc[2] = __raw_readl(MSC2);
403 /* setup power saving mode registers */
418 static void cmx2xx_resume(void)
422 /* restore MSC registers */
423 __raw_writel(sleep_save_msc[0], MSC0);
424 __raw_writel(sleep_save_msc[1], MSC1);
425 __raw_writel(sleep_save_msc[2], MSC2);
428 static struct syscore_ops cmx2xx_pm_syscore_ops = {
429 .resume = cmx2xx_resume,
430 .suspend = cmx2xx_suspend,
433 static int __init cmx2xx_pm_init(void)
435 register_syscore_ops(&cmx2xx_pm_syscore_ops);
440 static int __init cmx2xx_pm_init(void) { return 0; }
443 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
444 static void __init cmx2xx_init_ac97(void)
446 pxa_set_ac97_info(NULL);
449 static inline void cmx2xx_init_ac97(void) {}
452 static void __init cmx2xx_init(void)
454 pxa_set_ffuart_info(NULL);
455 pxa_set_btuart_info(NULL);
456 pxa_set_stuart_info(NULL);
465 cmx2xx_init_dm9000();
466 cmx2xx_init_display();
468 cmx2xx_init_touchscreen();
471 regulator_has_full_constraints();
474 static void __init cmx2xx_init_irq(void)
476 if (cpu_is_pxa25x()) {
478 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
481 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
486 /* Map PCI companion statically */
487 static struct map_desc cmx2xx_io_desc[] __initdata = {
488 [0] = { /* PCI bridge */
489 .virtual = (unsigned long)CMX2XX_IT8152_VIRT,
490 .pfn = __phys_to_pfn(PXA_CS4_PHYS),
496 static void __init cmx2xx_map_io(void)
504 iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
506 it8152_base_address = CMX2XX_IT8152_VIRT;
509 static void __init cmx2xx_map_io(void)
519 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
520 .atag_offset = 0x100,
521 .map_io = cmx2xx_map_io,
522 .nr_irqs = CMX2XX_NR_IRQS,
523 .init_irq = cmx2xx_init_irq,
524 /* NOTE: pxa25x_handle_irq() works on PXA27x w/o camera support */
525 .handle_irq = pxa25x_handle_irq,
526 .init_time = pxa_timer_init,
527 .init_machine = cmx2xx_init,
529 .dma_zone_size = SZ_64M,
531 .restart = pxa_restart,