1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-pxa/lpd270.c
5 * Support for the LogicPD PXA270 Card Engine.
6 * Derived from the mainstone code, which carries these notices:
8 * Author: Nicolas Pitre
9 * Created: Nov 05, 2002
10 * Copyright: MontaVista Software Inc.
12 #include <linux/gpio.h>
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/syscore_ops.h>
16 #include <linux/interrupt.h>
17 #include <linux/sched.h>
18 #include <linux/bitops.h>
20 #include <linux/ioport.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/partitions.h>
23 #include <linux/pwm.h>
24 #include <linux/pwm_backlight.h>
25 #include <linux/smc91x.h>
27 #include <asm/types.h>
28 #include <asm/setup.h>
29 #include <asm/memory.h>
30 #include <asm/mach-types.h>
31 #include <mach/hardware.h>
33 #include <linux/sizes.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/irq.h>
38 #include <asm/mach/flash.h>
42 #include <mach/audio.h>
43 #include <linux/platform_data/video-pxafb.h>
44 #include <linux/platform_data/mmc-pxamci.h>
45 #include <linux/platform_data/irda-pxaficp.h>
46 #include <linux/platform_data/usb-ohci-pxa27x.h>
47 #include <mach/smemc.h>
52 static unsigned long lpd270_pin_config[] __initdata = {
54 GPIO15_nCS_1, /* Mainboard Flash */
55 GPIO78_nCS_2, /* CPLD + Ethernet */
57 /* LCD - 16bpp Active TFT */
78 GPIO16_PWM0_OUT, /* Backlight */
86 GPIO29_AC97_SDATA_IN_0,
87 GPIO30_AC97_SDATA_OUT,
91 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
94 static unsigned int lpd270_irq_enabled;
96 static void lpd270_mask_irq(struct irq_data *d)
98 int lpd270_irq = d->irq - LPD270_IRQ(0);
100 __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
102 lpd270_irq_enabled &= ~(1 << lpd270_irq);
103 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
106 static void lpd270_unmask_irq(struct irq_data *d)
108 int lpd270_irq = d->irq - LPD270_IRQ(0);
110 lpd270_irq_enabled |= 1 << lpd270_irq;
111 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
114 static struct irq_chip lpd270_irq_chip = {
116 .irq_ack = lpd270_mask_irq,
117 .irq_mask = lpd270_mask_irq,
118 .irq_unmask = lpd270_unmask_irq,
121 static void lpd270_irq_handler(struct irq_desc *desc)
124 unsigned long pending;
126 pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
128 /* clear useless edge notification */
129 desc->irq_data.chip->irq_ack(&desc->irq_data);
130 if (likely(pending)) {
131 irq = LPD270_IRQ(0) + __ffs(pending);
132 generic_handle_irq(irq);
134 pending = __raw_readw(LPD270_INT_STATUS) &
140 static void __init lpd270_init_irq(void)
146 __raw_writew(0, LPD270_INT_MASK);
147 __raw_writew(0, LPD270_INT_STATUS);
149 /* setup extra LogicPD PXA270 irqs */
150 for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
151 irq_set_chip_and_handler(irq, &lpd270_irq_chip,
153 irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
155 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
156 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
161 static void lpd270_irq_resume(void)
163 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
166 static struct syscore_ops lpd270_irq_syscore_ops = {
167 .resume = lpd270_irq_resume,
170 static int __init lpd270_irq_device_init(void)
172 if (machine_is_logicpd_pxa270()) {
173 register_syscore_ops(&lpd270_irq_syscore_ops);
179 device_initcall(lpd270_irq_device_init);
183 static struct resource smc91x_resources[] = {
185 .start = LPD270_ETH_PHYS,
186 .end = (LPD270_ETH_PHYS + 0xfffff),
187 .flags = IORESOURCE_MEM,
190 .start = LPD270_ETHERNET_IRQ,
191 .end = LPD270_ETHERNET_IRQ,
192 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
196 struct smc91x_platdata smc91x_platdata = {
197 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
200 static struct platform_device smc91x_device = {
203 .num_resources = ARRAY_SIZE(smc91x_resources),
204 .resource = smc91x_resources,
205 .dev.platform_data = &smc91x_platdata,
208 static struct resource lpd270_flash_resources[] = {
210 .start = PXA_CS0_PHYS,
211 .end = PXA_CS0_PHYS + SZ_64M - 1,
212 .flags = IORESOURCE_MEM,
215 .start = PXA_CS1_PHYS,
216 .end = PXA_CS1_PHYS + SZ_64M - 1,
217 .flags = IORESOURCE_MEM,
221 static struct mtd_partition lpd270_flash0_partitions[] = {
223 .name = "Bootloader",
226 .mask_flags = MTD_WRITEABLE /* force read-only */
230 .offset = 0x00040000,
232 .name = "Filesystem",
233 .size = MTDPART_SIZ_FULL,
238 static struct flash_platform_data lpd270_flash_data[2] = {
240 .name = "processor-flash",
241 .map_name = "cfi_probe",
242 .parts = lpd270_flash0_partitions,
243 .nr_parts = ARRAY_SIZE(lpd270_flash0_partitions),
245 .name = "mainboard-flash",
246 .map_name = "cfi_probe",
252 static struct platform_device lpd270_flash_device[2] = {
254 .name = "pxa2xx-flash",
257 .platform_data = &lpd270_flash_data[0],
259 .resource = &lpd270_flash_resources[0],
262 .name = "pxa2xx-flash",
265 .platform_data = &lpd270_flash_data[1],
267 .resource = &lpd270_flash_resources[1],
272 static struct pwm_lookup lpd270_pwm_lookup[] = {
273 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
274 PWM_POLARITY_NORMAL),
277 static struct platform_pwm_backlight_data lpd270_backlight_data = {
283 static struct platform_device lpd270_backlight_device = {
284 .name = "pwm-backlight",
286 .parent = &pxa27x_device_pwm0.dev,
287 .platform_data = &lpd270_backlight_data,
291 /* 5.7" TFT QVGA (LoLo display number 1) */
292 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
299 .right_margin = 0x0a,
301 .upper_margin = 0x08,
302 .lower_margin = 0x14,
303 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
306 static struct pxafb_mach_info sharp_lq057q3dc02 = {
307 .modes = &sharp_lq057q3dc02_mode,
309 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
310 LCD_ALTERNATE_MAPPING,
313 /* 12.1" TFT SVGA (LoLo display number 2) */
314 static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
321 .right_margin = 0x05,
323 .upper_margin = 0x14,
324 .lower_margin = 0x0a,
325 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
328 static struct pxafb_mach_info sharp_lq121s1dg31 = {
329 .modes = &sharp_lq121s1dg31_mode,
331 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
332 LCD_ALTERNATE_MAPPING,
335 /* 3.6" TFT QVGA (LoLo display number 3) */
336 static struct pxafb_mode_info sharp_lq036q1da01_mode = {
343 .right_margin = 0x0a,
345 .upper_margin = 0x03,
346 .lower_margin = 0x03,
347 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
350 static struct pxafb_mach_info sharp_lq036q1da01 = {
351 .modes = &sharp_lq036q1da01_mode,
353 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
354 LCD_ALTERNATE_MAPPING,
357 /* 6.4" TFT VGA (LoLo display number 5) */
358 static struct pxafb_mode_info sharp_lq64d343_mode = {
365 .right_margin = 0x19,
367 .upper_margin = 0x22,
368 .lower_margin = 0x00,
369 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
372 static struct pxafb_mach_info sharp_lq64d343 = {
373 .modes = &sharp_lq64d343_mode,
375 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
376 LCD_ALTERNATE_MAPPING,
379 /* 10.4" TFT VGA (LoLo display number 7) */
380 static struct pxafb_mode_info sharp_lq10d368_mode = {
387 .right_margin = 0x19,
389 .upper_margin = 0x22,
390 .lower_margin = 0x00,
391 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
394 static struct pxafb_mach_info sharp_lq10d368 = {
395 .modes = &sharp_lq10d368_mode,
397 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
398 LCD_ALTERNATE_MAPPING,
401 /* 3.5" TFT QVGA (LoLo display number 8) */
402 static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
409 .right_margin = 0x0a,
411 .upper_margin = 0x05,
412 .lower_margin = 0x14,
413 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
416 static struct pxafb_mach_info sharp_lq035q7db02_20 = {
417 .modes = &sharp_lq035q7db02_20_mode,
419 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
420 LCD_ALTERNATE_MAPPING,
423 static struct pxafb_mach_info *lpd270_lcd_to_use;
425 static int __init lpd270_set_lcd(char *str)
427 if (!strncasecmp(str, "lq057q3dc02", 11)) {
428 lpd270_lcd_to_use = &sharp_lq057q3dc02;
429 } else if (!strncasecmp(str, "lq121s1dg31", 11)) {
430 lpd270_lcd_to_use = &sharp_lq121s1dg31;
431 } else if (!strncasecmp(str, "lq036q1da01", 11)) {
432 lpd270_lcd_to_use = &sharp_lq036q1da01;
433 } else if (!strncasecmp(str, "lq64d343", 8)) {
434 lpd270_lcd_to_use = &sharp_lq64d343;
435 } else if (!strncasecmp(str, "lq10d368", 8)) {
436 lpd270_lcd_to_use = &sharp_lq10d368;
437 } else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
438 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
440 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
446 __setup("lcd=", lpd270_set_lcd);
448 static struct platform_device *platform_devices[] __initdata = {
450 &lpd270_backlight_device,
451 &lpd270_flash_device[0],
452 &lpd270_flash_device[1],
455 static struct pxaohci_platform_data lpd270_ohci_platform_data = {
456 .port_mode = PMM_PERPORT_MODE,
457 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
460 static void __init lpd270_init(void)
462 pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
464 pxa_set_ffuart_info(NULL);
465 pxa_set_btuart_info(NULL);
466 pxa_set_stuart_info(NULL);
468 lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
469 lpd270_flash_data[1].width = 4;
472 * System bus arbiter setting:
474 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
476 ARB_CNTRL = ARB_CORE_PARK | 0x234;
478 pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
479 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
481 pxa_set_ac97_info(NULL);
483 if (lpd270_lcd_to_use != NULL)
484 pxa_set_fb_info(NULL, lpd270_lcd_to_use);
486 pxa_set_ohci_info(&lpd270_ohci_platform_data);
490 static struct map_desc lpd270_io_desc[] __initdata = {
492 .virtual = (unsigned long)LPD270_CPLD_VIRT,
493 .pfn = __phys_to_pfn(LPD270_CPLD_PHYS),
494 .length = LPD270_CPLD_SIZE,
499 static void __init lpd270_map_io(void)
502 iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
504 /* for use I SRAM as framebuffer. */
509 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
510 /* Maintainer: Peter Barada */
511 .atag_offset = 0x100,
512 .map_io = lpd270_map_io,
513 .nr_irqs = LPD270_NR_IRQS,
514 .init_irq = lpd270_init_irq,
515 .handle_irq = pxa27x_handle_irq,
516 .init_time = pxa_timer_init,
517 .init_machine = lpd270_init,
518 .restart = pxa_restart,