1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-pxa/cm-x2xx.c
5 * Copyright (C) 2008 CompuLab, Ltd.
6 * Mike Rapoport <mike@compulab.co.il>
9 #include <linux/platform_device.h>
10 #include <linux/syscore_ops.h>
11 #include <linux/irq.h>
12 #include <linux/gpio.h>
13 #include <linux/regulator/machine.h>
15 #include <linux/dm9000.h>
16 #include <linux/leds.h>
18 #include <asm/mach/arch.h>
19 #include <asm/mach-types.h>
20 #include <asm/mach/map.h>
23 #undef GPIO24_SSP1_SFRM
29 #undef GPIO24_SSP1_SFRM
34 #include <mach/audio.h>
35 #include <linux/platform_data/video-pxafb.h>
36 #include <mach/smemc.h>
38 #include <asm/hardware/it8152.h>
41 #include "cm-x2xx-pci.h"
43 extern void cmx255_init(void);
44 extern void cmx270_init(void);
46 /* reserve IRQs for IT8152 */
47 #define CMX2XX_NR_IRQS (IRQ_BOARD_START + 40)
49 /* virtual addresses for statically mapped regions */
50 #define CMX2XX_VIRT_BASE (void __iomem *)(0xe8000000)
51 #define CMX2XX_IT8152_VIRT (CMX2XX_VIRT_BASE)
53 /* physical address if local-bus attached devices */
54 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
55 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
58 #define CMX255_GPIO_RED (27)
59 #define CMX255_GPIO_GREEN (32)
60 #define CMX270_GPIO_RED (93)
61 #define CMX270_GPIO_GREEN (94)
64 #define GPIO22_ETHIRQ (22)
65 #define GPIO10_ETHIRQ (10)
66 #define CMX255_GPIO_IT8152_IRQ (0)
67 #define CMX270_GPIO_IT8152_IRQ (22)
69 #define CMX255_ETHIRQ PXA_GPIO_TO_IRQ(GPIO22_ETHIRQ)
70 #define CMX270_ETHIRQ PXA_GPIO_TO_IRQ(GPIO10_ETHIRQ)
72 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
73 static struct resource cmx255_dm9000_resource[] = {
75 .start = CMX255_DM9000_PHYS_BASE,
76 .end = CMX255_DM9000_PHYS_BASE + 3,
77 .flags = IORESOURCE_MEM,
80 .start = CMX255_DM9000_PHYS_BASE + 4,
81 .end = CMX255_DM9000_PHYS_BASE + 4 + 500,
82 .flags = IORESOURCE_MEM,
85 .start = CMX255_ETHIRQ,
87 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
91 static struct resource cmx270_dm9000_resource[] = {
93 .start = CMX270_DM9000_PHYS_BASE,
94 .end = CMX270_DM9000_PHYS_BASE + 3,
95 .flags = IORESOURCE_MEM,
98 .start = CMX270_DM9000_PHYS_BASE + 8,
99 .end = CMX270_DM9000_PHYS_BASE + 8 + 500,
100 .flags = IORESOURCE_MEM,
103 .start = CMX270_ETHIRQ,
104 .end = CMX270_ETHIRQ,
105 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
109 static struct dm9000_plat_data cmx270_dm9000_platdata = {
110 .flags = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
113 static struct platform_device cmx2xx_dm9000_device = {
116 .num_resources = ARRAY_SIZE(cmx270_dm9000_resource),
118 .platform_data = &cmx270_dm9000_platdata,
122 static void __init cmx2xx_init_dm9000(void)
125 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
127 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
128 platform_device_register(&cmx2xx_dm9000_device);
131 static inline void cmx2xx_init_dm9000(void) {}
134 /* UCB1400 touchscreen controller */
135 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
136 static struct platform_device cmx2xx_ts_device = {
137 .name = "ucb1400_core",
141 static void __init cmx2xx_init_touchscreen(void)
143 platform_device_register(&cmx2xx_ts_device);
146 static inline void cmx2xx_init_touchscreen(void) {}
150 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
151 static struct gpio_led cmx2xx_leds[] = {
153 .name = "cm-x2xx:red",
154 .default_trigger = "nand-disk",
158 .name = "cm-x2xx:green",
159 .default_trigger = "heartbeat",
164 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
165 .num_leds = ARRAY_SIZE(cmx2xx_leds),
169 static struct platform_device cmx2xx_led_device = {
173 .platform_data = &cmx2xx_gpio_led_pdata,
177 static void __init cmx2xx_init_leds(void)
179 if (cpu_is_pxa25x()) {
180 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
181 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
183 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
184 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
186 platform_device_register(&cmx2xx_led_device);
189 static inline void cmx2xx_init_leds(void) {}
192 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
195 keep these for backwards compatibility, although symbolic names (as
196 e.g. in lpd270.c) looks better
198 #define MTYPE_STN320x240 0
199 #define MTYPE_TFT640x480 1
200 #define MTYPE_CRT640x480 2
201 #define MTYPE_CRT800x600 3
202 #define MTYPE_TFT320x240 6
203 #define MTYPE_STN640x480 7
205 static struct pxafb_mode_info generic_stn_320x240_mode = {
216 .sync = (FB_SYNC_HOR_HIGH_ACT |
217 FB_SYNC_VERT_HIGH_ACT),
221 static struct pxafb_mach_info generic_stn_320x240 = {
222 .modes = &generic_stn_320x240_mode,
224 .lcd_conn = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
225 LCD_AC_BIAS_FREQ(0xff),
230 static struct pxafb_mode_info generic_tft_640x480_mode = {
245 static struct pxafb_mach_info generic_tft_640x480 = {
246 .modes = &generic_tft_640x480_mode,
248 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
249 LCD_AC_BIAS_FREQ(0xff),
254 static struct pxafb_mode_info generic_crt_640x480_mode = {
265 .sync = (FB_SYNC_HOR_HIGH_ACT |
266 FB_SYNC_VERT_HIGH_ACT),
270 static struct pxafb_mach_info generic_crt_640x480 = {
271 .modes = &generic_crt_640x480_mode,
273 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
278 static struct pxafb_mode_info generic_crt_800x600_mode = {
289 .sync = (FB_SYNC_HOR_HIGH_ACT |
290 FB_SYNC_VERT_HIGH_ACT),
294 static struct pxafb_mach_info generic_crt_800x600 = {
295 .modes = &generic_crt_800x600_mode,
297 .lcd_conn = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
302 static struct pxafb_mode_info generic_tft_320x240_mode = {
317 static struct pxafb_mach_info generic_tft_320x240 = {
318 .modes = &generic_tft_320x240_mode,
320 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
325 static struct pxafb_mode_info generic_stn_640x480_mode = {
336 .sync = (FB_SYNC_HOR_HIGH_ACT |
337 FB_SYNC_VERT_HIGH_ACT),
341 static struct pxafb_mach_info generic_stn_640x480 = {
342 .modes = &generic_stn_640x480_mode,
344 .lcd_conn = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
349 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
351 static int __init cmx2xx_set_display(char *str)
353 int disp_type = simple_strtol(str, NULL, 0);
355 case MTYPE_STN320x240:
356 cmx2xx_display = &generic_stn_320x240;
358 case MTYPE_TFT640x480:
359 cmx2xx_display = &generic_tft_640x480;
361 case MTYPE_CRT640x480:
362 cmx2xx_display = &generic_crt_640x480;
364 case MTYPE_CRT800x600:
365 cmx2xx_display = &generic_crt_800x600;
367 case MTYPE_TFT320x240:
368 cmx2xx_display = &generic_tft_320x240;
370 case MTYPE_STN640x480:
371 cmx2xx_display = &generic_stn_640x480;
373 default: /* fallback to CRT 640x480 */
374 cmx2xx_display = &generic_crt_640x480;
381 This should be done really early to get proper configuration for
383 Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
384 has limitied line length for kernel command line, and also it will
385 break compatibitlty with proprietary releases already in field.
387 __setup("monitor=", cmx2xx_set_display);
389 static void __init cmx2xx_init_display(void)
391 pxa_set_fb_info(NULL, cmx2xx_display);
394 static inline void cmx2xx_init_display(void) {}
398 static unsigned long sleep_save_msc[10];
400 static int cmx2xx_suspend(void)
402 cmx2xx_pci_suspend();
404 /* save MSC registers */
405 sleep_save_msc[0] = __raw_readl(MSC0);
406 sleep_save_msc[1] = __raw_readl(MSC1);
407 sleep_save_msc[2] = __raw_readl(MSC2);
409 /* setup power saving mode registers */
424 static void cmx2xx_resume(void)
428 /* restore MSC registers */
429 __raw_writel(sleep_save_msc[0], MSC0);
430 __raw_writel(sleep_save_msc[1], MSC1);
431 __raw_writel(sleep_save_msc[2], MSC2);
434 static struct syscore_ops cmx2xx_pm_syscore_ops = {
435 .resume = cmx2xx_resume,
436 .suspend = cmx2xx_suspend,
439 static int __init cmx2xx_pm_init(void)
441 register_syscore_ops(&cmx2xx_pm_syscore_ops);
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();
477 regulator_has_full_constraints();
480 static void __init cmx2xx_init_irq(void)
482 if (cpu_is_pxa25x()) {
484 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
487 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
492 /* Map PCI companion statically */
493 static struct map_desc cmx2xx_io_desc[] __initdata = {
494 [0] = { /* PCI bridge */
495 .virtual = (unsigned long)CMX2XX_IT8152_VIRT,
496 .pfn = __phys_to_pfn(PXA_CS4_PHYS),
502 static void __init cmx2xx_map_io(void)
510 iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
512 it8152_base_address = CMX2XX_IT8152_VIRT;
515 static void __init cmx2xx_map_io(void)
525 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
526 .atag_offset = 0x100,
527 .map_io = cmx2xx_map_io,
528 .nr_irqs = CMX2XX_NR_IRQS,
529 .init_irq = cmx2xx_init_irq,
530 /* NOTE: pxa25x_handle_irq() works on PXA27x w/o camera support */
531 .handle_irq = pxa25x_handle_irq,
532 .init_time = pxa_timer_init,
533 .init_machine = cmx2xx_init,
535 .dma_zone_size = SZ_64M,
537 .restart = pxa_restart,