2
* linux/arch/arm/mach-pxa/mainstone.c
4
* Support for the Intel HCDDBBVA0 Development Platform.
5
* (go figure how they came up with such name...)
7
* Author: Nicolas Pitre
8
* Created: Nov 05, 2002
9
* Copyright: MontaVista Software Inc.
11
* This program is free software; you can redistribute it and/or modify
12
* it under the terms of the GNU General Public License version 2 as
13
* published by the Free Software Foundation.
15
#include <linux/gpio.h>
16
#include <linux/init.h>
17
#include <linux/platform_device.h>
18
#include <linux/syscore_ops.h>
19
#include <linux/interrupt.h>
20
#include <linux/sched.h>
21
#include <linux/bitops.h>
23
#include <linux/ioport.h>
24
#include <linux/mtd/mtd.h>
25
#include <linux/mtd/partitions.h>
26
#include <linux/input.h>
27
#include <linux/gpio_keys.h>
28
#include <linux/pwm_backlight.h>
29
#include <linux/smc91x.h>
30
#include <linux/i2c/pxa-i2c.h>
32
#include <asm/types.h>
33
#include <asm/setup.h>
34
#include <asm/memory.h>
35
#include <asm/mach-types.h>
36
#include <mach/hardware.h>
38
#include <asm/sizes.h>
40
#include <asm/mach/arch.h>
41
#include <asm/mach/map.h>
42
#include <asm/mach/irq.h>
43
#include <asm/mach/flash.h>
45
#include <mach/pxa27x.h>
46
#include <mach/mainstone.h>
47
#include <mach/audio.h>
48
#include <mach/pxafb.h>
50
#include <mach/irda.h>
51
#include <mach/ohci.h>
52
#include <plat/pxa27x_keypad.h>
53
#include <mach/smemc.h>
58
static unsigned long mainstone_pin_config[] = {
62
/* LCD - 16bpp Active TFT */
64
GPIO16_PWM0_OUT, /* Backlight */
92
GPIO29_AC97_SDATA_IN_0,
93
GPIO30_AC97_SDATA_OUT,
101
GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
102
GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
103
GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
104
GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
105
GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
106
GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
120
GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
123
static unsigned long mainstone_irq_enabled;
125
static void mainstone_mask_irq(struct irq_data *d)
127
int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
128
MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
131
static void mainstone_unmask_irq(struct irq_data *d)
133
int mainstone_irq = (d->irq - MAINSTONE_IRQ(0));
134
/* the irq can be acknowledged only if deasserted, so it's done here */
135
MST_INTSETCLR &= ~(1 << mainstone_irq);
136
MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
139
static struct irq_chip mainstone_irq_chip = {
141
.irq_ack = mainstone_mask_irq,
142
.irq_mask = mainstone_mask_irq,
143
.irq_unmask = mainstone_unmask_irq,
146
static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
148
unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
150
/* clear useless edge notification */
151
desc->irq_data.chip->irq_ack(&desc->irq_data);
152
if (likely(pending)) {
153
irq = MAINSTONE_IRQ(0) + __ffs(pending);
154
generic_handle_irq(irq);
156
pending = MST_INTSETCLR & mainstone_irq_enabled;
160
static void __init mainstone_init_irq(void)
166
/* setup extra Mainstone irqs */
167
for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
168
irq_set_chip_and_handler(irq, &mainstone_irq_chip,
170
if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
171
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
173
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
175
set_irq_flags(MAINSTONE_IRQ(8), 0);
176
set_irq_flags(MAINSTONE_IRQ(12), 0);
181
irq_set_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
182
irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
187
static void mainstone_irq_resume(void)
189
MST_INTMSKENA = mainstone_irq_enabled;
192
static struct syscore_ops mainstone_irq_syscore_ops = {
193
.resume = mainstone_irq_resume,
196
static int __init mainstone_irq_device_init(void)
198
if (machine_is_mainstone())
199
register_syscore_ops(&mainstone_irq_syscore_ops);
204
device_initcall(mainstone_irq_device_init);
209
static struct resource smc91x_resources[] = {
211
.start = (MST_ETH_PHYS + 0x300),
212
.end = (MST_ETH_PHYS + 0xfffff),
213
.flags = IORESOURCE_MEM,
216
.start = MAINSTONE_IRQ(3),
217
.end = MAINSTONE_IRQ(3),
218
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
222
static struct smc91x_platdata mainstone_smc91x_info = {
223
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
224
SMC91X_NOWAIT | SMC91X_USE_DMA,
227
static struct platform_device smc91x_device = {
230
.num_resources = ARRAY_SIZE(smc91x_resources),
231
.resource = smc91x_resources,
233
.platform_data = &mainstone_smc91x_info,
237
static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
239
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
240
MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
244
static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
246
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
247
MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
250
static long mst_audio_suspend_mask;
252
static void mst_audio_suspend(void *priv)
254
mst_audio_suspend_mask = MST_MSCWR2;
255
MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
258
static void mst_audio_resume(void *priv)
260
MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
263
static pxa2xx_audio_ops_t mst_audio_ops = {
264
.startup = mst_audio_startup,
265
.shutdown = mst_audio_shutdown,
266
.suspend = mst_audio_suspend,
267
.resume = mst_audio_resume,
270
static struct resource flash_resources[] = {
272
.start = PXA_CS0_PHYS,
273
.end = PXA_CS0_PHYS + SZ_64M - 1,
274
.flags = IORESOURCE_MEM,
277
.start = PXA_CS1_PHYS,
278
.end = PXA_CS1_PHYS + SZ_64M - 1,
279
.flags = IORESOURCE_MEM,
283
static struct mtd_partition mainstoneflash0_partitions[] = {
285
.name = "Bootloader",
288
.mask_flags = MTD_WRITEABLE /* force read-only */
292
.offset = 0x00040000,
294
.name = "Filesystem",
295
.size = MTDPART_SIZ_FULL,
300
static struct flash_platform_data mst_flash_data[2] = {
302
.map_name = "cfi_probe",
303
.parts = mainstoneflash0_partitions,
304
.nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
306
.map_name = "cfi_probe",
312
static struct platform_device mst_flash_device[2] = {
314
.name = "pxa2xx-flash",
317
.platform_data = &mst_flash_data[0],
319
.resource = &flash_resources[0],
323
.name = "pxa2xx-flash",
326
.platform_data = &mst_flash_data[1],
328
.resource = &flash_resources[1],
333
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
334
static struct platform_pwm_backlight_data mainstone_backlight_data = {
336
.max_brightness = 1023,
337
.dft_brightness = 1023,
338
.pwm_period_ns = 78770,
341
static struct platform_device mainstone_backlight_device = {
342
.name = "pwm-backlight",
344
.parent = &pxa27x_device_pwm0.dev,
345
.platform_data = &mainstone_backlight_data,
349
static void __init mainstone_backlight_register(void)
351
int ret = platform_device_register(&mainstone_backlight_device);
353
printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
356
#define mainstone_backlight_register() do { } while (0)
359
static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
370
.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
373
static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
384
.sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
387
static struct pxafb_mach_info mainstone_pxafb_info = {
389
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
392
static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
396
/* make sure SD/Memory Stick multiplexer's signals
397
* are routed to MMC controller
399
MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
401
err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
402
"MMC card detect", data);
404
printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
409
static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
411
struct pxamci_platform_data* p_d = dev->platform_data;
413
if (( 1 << vdd) & p_d->ocr_mask) {
414
printk(KERN_DEBUG "%s: on\n", __func__);
415
MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
416
MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
418
printk(KERN_DEBUG "%s: off\n", __func__);
419
MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
423
static void mainstone_mci_exit(struct device *dev, void *data)
425
free_irq(MAINSTONE_MMC_IRQ, data);
428
static struct pxamci_platform_data mainstone_mci_platform_data = {
429
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
430
.init = mainstone_mci_init,
431
.setpower = mainstone_mci_setpower,
432
.exit = mainstone_mci_exit,
433
.gpio_card_detect = -1,
438
static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
442
local_irq_save(flags);
443
if (mode & IR_SIRMODE) {
444
MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
445
} else if (mode & IR_FIRMODE) {
446
MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
448
pxa2xx_transceiver_mode(dev, mode);
450
MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
452
MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
454
local_irq_restore(flags);
457
static struct pxaficp_platform_data mainstone_ficp_platform_data = {
459
.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
460
.transceiver_mode = mainstone_irda_transceiver_mode,
463
static struct gpio_keys_button gpio_keys_button[] = {
473
static struct gpio_keys_platform_data mainstone_gpio_keys = {
474
.buttons = gpio_keys_button,
478
static struct platform_device mst_gpio_keys_device = {
482
.platform_data = &mainstone_gpio_keys,
486
static struct platform_device *platform_devices[] __initdata = {
488
&mst_flash_device[0],
489
&mst_flash_device[1],
490
&mst_gpio_keys_device,
493
static struct pxaohci_platform_data mainstone_ohci_platform_data = {
494
.port_mode = PMM_PERPORT_MODE,
495
.flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
498
#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
499
static unsigned int mainstone_matrix_keys[] = {
500
KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
501
KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
502
KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
503
KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
504
KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
505
KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
506
KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
507
KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
508
KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
510
KEY(0, 4, KEY_DOT), /* . */
511
KEY(1, 4, KEY_CLOSE), /* @ */
512
KEY(4, 4, KEY_SLASH),
513
KEY(5, 4, KEY_BACKSLASH),
515
KEY(1, 5, KEY_LEFTSHIFT),
516
KEY(2, 5, KEY_SPACE),
517
KEY(3, 5, KEY_SPACE),
518
KEY(4, 5, KEY_ENTER),
519
KEY(5, 5, KEY_BACKSPACE),
524
KEY(3, 6, KEY_RIGHT),
525
KEY(4, 6, KEY_SELECT),
528
struct pxa27x_keypad_platform_data mainstone_keypad_info = {
529
.matrix_key_rows = 6,
530
.matrix_key_cols = 7,
531
.matrix_key_map = mainstone_matrix_keys,
532
.matrix_key_map_size = ARRAY_SIZE(mainstone_matrix_keys),
535
.rotary0_up_key = KEY_UP,
536
.rotary0_down_key = KEY_DOWN,
538
.debounce_interval = 30,
541
static void __init mainstone_init_keypad(void)
543
pxa_set_keypad_info(&mainstone_keypad_info);
546
static inline void mainstone_init_keypad(void) {}
549
static void __init mainstone_init(void)
551
int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
553
pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
555
pxa_set_ffuart_info(NULL);
556
pxa_set_btuart_info(NULL);
557
pxa_set_stuart_info(NULL);
559
mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
560
mst_flash_data[1].width = 4;
562
/* Compensate for SW7 which swaps the flash banks */
563
mst_flash_data[SW7].name = "processor-flash";
564
mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
566
printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
567
mst_flash_data[0].name);
569
/* system bus arbiter setting
571
* - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
573
ARB_CNTRL = ARB_CORE_PARK | 0x234;
575
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
577
/* reading Mainstone's "Virtual Configuration Register"
578
might be handy to select LCD type here */
580
mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
582
mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
584
pxa_set_fb_info(NULL, &mainstone_pxafb_info);
585
mainstone_backlight_register();
587
pxa_set_mci_info(&mainstone_mci_platform_data);
588
pxa_set_ficp_info(&mainstone_ficp_platform_data);
589
pxa_set_ohci_info(&mainstone_ohci_platform_data);
590
pxa_set_i2c_info(NULL);
591
pxa_set_ac97_info(&mst_audio_ops);
593
mainstone_init_keypad();
597
static struct map_desc mainstone_io_desc[] __initdata = {
599
.virtual = MST_FPGA_VIRT,
600
.pfn = __phys_to_pfn(MST_FPGA_PHYS),
601
.length = 0x00100000,
606
static void __init mainstone_map_io(void)
609
iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
611
/* for use I SRAM as framebuffer. */
616
MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
617
/* Maintainer: MontaVista Software Inc. */
618
.atag_offset = 0x100, /* BLOB boot parameter setting */
619
.map_io = mainstone_map_io,
620
.nr_irqs = MAINSTONE_NR_IRQS,
621
.init_irq = mainstone_init_irq,
622
.handle_irq = pxa27x_handle_irq,
624
.init_machine = mainstone_init,