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17#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
18
19#include <linux/kernel.h>
20#include <linux/init.h>
21#include <linux/platform_device.h>
22#include <linux/interrupt.h>
23#include <linux/dma-mapping.h>
24#include <linux/sys_soc.h>
25#include <linux/irq.h>
26#include <linux/io.h>
27#include <linux/gpio.h>
28#include <linux/leds.h>
29#include <linux/termios.h>
30#include <linux/amba/bus.h>
31#include <linux/amba/serial.h>
32#include <linux/mtd/physmap.h>
33#include <linux/i2c.h>
34#include <linux/gpio/machine.h>
35#include <linux/spi/spi.h>
36#include <linux/export.h>
37#include <linux/irqchip/arm-vic.h>
38#include <linux/reboot.h>
39#include <linux/usb/ohci_pdriver.h>
40#include <linux/random.h>
41
42#include <mach/hardware.h>
43#include <linux/platform_data/video-ep93xx.h>
44#include <linux/platform_data/keypad-ep93xx.h>
45#include <linux/platform_data/spi-ep93xx.h>
46#include <mach/gpio-ep93xx.h>
47
48#include <asm/mach/arch.h>
49#include <asm/mach/map.h>
50
51#include "soc.h"
52
53
54
55
56static struct map_desc ep93xx_io_desc[] __initdata = {
57 {
58 .virtual = EP93XX_AHB_VIRT_BASE,
59 .pfn = __phys_to_pfn(EP93XX_AHB_PHYS_BASE),
60 .length = EP93XX_AHB_SIZE,
61 .type = MT_DEVICE,
62 }, {
63 .virtual = EP93XX_APB_VIRT_BASE,
64 .pfn = __phys_to_pfn(EP93XX_APB_PHYS_BASE),
65 .length = EP93XX_APB_SIZE,
66 .type = MT_DEVICE,
67 },
68};
69
70void __init ep93xx_map_io(void)
71{
72 iotable_init(ep93xx_io_desc, ARRAY_SIZE(ep93xx_io_desc));
73}
74
75
76
77
78void __init ep93xx_init_irq(void)
79{
80 vic_init(EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK, 0);
81 vic_init(EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK, 0);
82}
83
84
85
86
87
88
89
90
91
92
93static DEFINE_SPINLOCK(syscon_swlock);
94
95void ep93xx_syscon_swlocked_write(unsigned int val, void __iomem *reg)
96{
97 unsigned long flags;
98
99 spin_lock_irqsave(&syscon_swlock, flags);
100
101 __raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
102 __raw_writel(val, reg);
103
104 spin_unlock_irqrestore(&syscon_swlock, flags);
105}
106
107void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits)
108{
109 unsigned long flags;
110 unsigned int val;
111
112 spin_lock_irqsave(&syscon_swlock, flags);
113
114 val = __raw_readl(EP93XX_SYSCON_DEVCFG);
115 val &= ~clear_bits;
116 val |= set_bits;
117 __raw_writel(0xaa, EP93XX_SYSCON_SWLOCK);
118 __raw_writel(val, EP93XX_SYSCON_DEVCFG);
119
120 spin_unlock_irqrestore(&syscon_swlock, flags);
121}
122
123
124
125
126
127
128unsigned int ep93xx_chip_revision(void)
129{
130 unsigned int v;
131
132 v = __raw_readl(EP93XX_SYSCON_SYSCFG);
133 v &= EP93XX_SYSCON_SYSCFG_REV_MASK;
134 v >>= EP93XX_SYSCON_SYSCFG_REV_SHIFT;
135 return v;
136}
137EXPORT_SYMBOL_GPL(ep93xx_chip_revision);
138
139
140
141
142static struct resource ep93xx_gpio_resource[] = {
143 DEFINE_RES_MEM(EP93XX_GPIO_PHYS_BASE, 0xcc),
144};
145
146static struct platform_device ep93xx_gpio_device = {
147 .name = "gpio-ep93xx",
148 .id = -1,
149 .num_resources = ARRAY_SIZE(ep93xx_gpio_resource),
150 .resource = ep93xx_gpio_resource,
151};
152
153
154
155
156#define EP93XX_UART_MCR_OFFSET (0x0100)
157
158static void ep93xx_uart_set_mctrl(struct amba_device *dev,
159 void __iomem *base, unsigned int mctrl)
160{
161 unsigned int mcr;
162
163 mcr = 0;
164 if (mctrl & TIOCM_RTS)
165 mcr |= 2;
166 if (mctrl & TIOCM_DTR)
167 mcr |= 1;
168
169 __raw_writel(mcr, base + EP93XX_UART_MCR_OFFSET);
170}
171
172static struct amba_pl010_data ep93xx_uart_data = {
173 .set_mctrl = ep93xx_uart_set_mctrl,
174};
175
176static AMBA_APB_DEVICE(uart1, "apb:uart1", 0x00041010, EP93XX_UART1_PHYS_BASE,
177 { IRQ_EP93XX_UART1 }, &ep93xx_uart_data);
178
179static AMBA_APB_DEVICE(uart2, "apb:uart2", 0x00041010, EP93XX_UART2_PHYS_BASE,
180 { IRQ_EP93XX_UART2 }, NULL);
181
182static AMBA_APB_DEVICE(uart3, "apb:uart3", 0x00041010, EP93XX_UART3_PHYS_BASE,
183 { IRQ_EP93XX_UART3 }, &ep93xx_uart_data);
184
185static struct resource ep93xx_rtc_resource[] = {
186 DEFINE_RES_MEM(EP93XX_RTC_PHYS_BASE, 0x10c),
187};
188
189static struct platform_device ep93xx_rtc_device = {
190 .name = "ep93xx-rtc",
191 .id = -1,
192 .num_resources = ARRAY_SIZE(ep93xx_rtc_resource),
193 .resource = ep93xx_rtc_resource,
194};
195
196
197
198
199
200static struct clk *ep93xx_ohci_host_clock;
201
202static int ep93xx_ohci_power_on(struct platform_device *pdev)
203{
204 if (!ep93xx_ohci_host_clock) {
205 ep93xx_ohci_host_clock = devm_clk_get(&pdev->dev, NULL);
206 if (IS_ERR(ep93xx_ohci_host_clock))
207 return PTR_ERR(ep93xx_ohci_host_clock);
208 }
209
210 return clk_enable(ep93xx_ohci_host_clock);
211}
212
213static void ep93xx_ohci_power_off(struct platform_device *pdev)
214{
215 clk_disable(ep93xx_ohci_host_clock);
216}
217
218static struct usb_ohci_pdata ep93xx_ohci_pdata = {
219 .power_on = ep93xx_ohci_power_on,
220 .power_off = ep93xx_ohci_power_off,
221 .power_suspend = ep93xx_ohci_power_off,
222};
223
224static struct resource ep93xx_ohci_resources[] = {
225 DEFINE_RES_MEM(EP93XX_USB_PHYS_BASE, 0x1000),
226 DEFINE_RES_IRQ(IRQ_EP93XX_USB),
227};
228
229static u64 ep93xx_ohci_dma_mask = DMA_BIT_MASK(32);
230
231static struct platform_device ep93xx_ohci_device = {
232 .name = "ohci-platform",
233 .id = -1,
234 .num_resources = ARRAY_SIZE(ep93xx_ohci_resources),
235 .resource = ep93xx_ohci_resources,
236 .dev = {
237 .dma_mask = &ep93xx_ohci_dma_mask,
238 .coherent_dma_mask = DMA_BIT_MASK(32),
239 .platform_data = &ep93xx_ohci_pdata,
240 },
241};
242
243
244
245
246static struct physmap_flash_data ep93xx_flash_data;
247
248static struct resource ep93xx_flash_resource = {
249 .flags = IORESOURCE_MEM,
250};
251
252static struct platform_device ep93xx_flash = {
253 .name = "physmap-flash",
254 .id = 0,
255 .dev = {
256 .platform_data = &ep93xx_flash_data,
257 },
258 .num_resources = 1,
259 .resource = &ep93xx_flash_resource,
260};
261
262
263
264
265
266
267
268void __init ep93xx_register_flash(unsigned int width,
269 resource_size_t start, resource_size_t size)
270{
271 ep93xx_flash_data.width = width;
272
273 ep93xx_flash_resource.start = start;
274 ep93xx_flash_resource.end = start + size - 1;
275
276 platform_device_register(&ep93xx_flash);
277}
278
279
280
281
282
283static struct ep93xx_eth_data ep93xx_eth_data;
284
285static struct resource ep93xx_eth_resource[] = {
286 DEFINE_RES_MEM(EP93XX_ETHERNET_PHYS_BASE, 0x10000),
287 DEFINE_RES_IRQ(IRQ_EP93XX_ETHERNET),
288};
289
290static u64 ep93xx_eth_dma_mask = DMA_BIT_MASK(32);
291
292static struct platform_device ep93xx_eth_device = {
293 .name = "ep93xx-eth",
294 .id = -1,
295 .dev = {
296 .platform_data = &ep93xx_eth_data,
297 .coherent_dma_mask = DMA_BIT_MASK(32),
298 .dma_mask = &ep93xx_eth_dma_mask,
299 },
300 .num_resources = ARRAY_SIZE(ep93xx_eth_resource),
301 .resource = ep93xx_eth_resource,
302};
303
304
305
306
307
308
309
310void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr)
311{
312 if (copy_addr)
313 memcpy_fromio(data->dev_addr, EP93XX_ETHERNET_BASE + 0x50, 6);
314
315 ep93xx_eth_data = *data;
316 platform_device_register(&ep93xx_eth_device);
317}
318
319
320
321
322
323
324
325static struct gpiod_lookup_table ep93xx_i2c_gpiod_table = {
326 .dev_id = "i2c-gpio.0",
327 .table = {
328
329 GPIO_LOOKUP_IDX("G", 1, NULL, 0,
330 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
331 GPIO_LOOKUP_IDX("G", 0, NULL, 1,
332 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
333 },
334};
335
336static struct platform_device ep93xx_i2c_device = {
337 .name = "i2c-gpio",
338 .id = 0,
339 .dev = {
340 .platform_data = NULL,
341 },
342};
343
344
345
346
347
348
349void __init ep93xx_register_i2c(struct i2c_board_info *devices, int num)
350{
351
352
353
354
355
356
357
358
359 __raw_writel((0 << 1) | (0 << 0),
360 EP93XX_GPIO_EEDRIVE);
361
362 i2c_register_board_info(0, devices, num);
363 gpiod_add_lookup_table(&ep93xx_i2c_gpiod_table);
364 platform_device_register(&ep93xx_i2c_device);
365}
366
367
368
369
370static struct ep93xx_spi_info ep93xx_spi_master_data;
371
372static struct resource ep93xx_spi_resources[] = {
373 DEFINE_RES_MEM(EP93XX_SPI_PHYS_BASE, 0x18),
374 DEFINE_RES_IRQ(IRQ_EP93XX_SSP),
375};
376
377static u64 ep93xx_spi_dma_mask = DMA_BIT_MASK(32);
378
379static struct platform_device ep93xx_spi_device = {
380 .name = "ep93xx-spi",
381 .id = 0,
382 .dev = {
383 .platform_data = &ep93xx_spi_master_data,
384 .coherent_dma_mask = DMA_BIT_MASK(32),
385 .dma_mask = &ep93xx_spi_dma_mask,
386 },
387 .num_resources = ARRAY_SIZE(ep93xx_spi_resources),
388 .resource = ep93xx_spi_resources,
389};
390
391
392
393
394
395
396
397
398
399
400void __init ep93xx_register_spi(struct ep93xx_spi_info *info,
401 struct spi_board_info *devices, int num)
402{
403
404
405
406
407 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONSSP);
408
409 ep93xx_spi_master_data = *info;
410 spi_register_board_info(devices, num);
411 platform_device_register(&ep93xx_spi_device);
412}
413
414
415
416
417static const struct gpio_led ep93xx_led_pins[] __initconst = {
418 {
419 .name = "platform:grled",
420 .gpio = EP93XX_GPIO_LINE_GRLED,
421 }, {
422 .name = "platform:rdled",
423 .gpio = EP93XX_GPIO_LINE_RDLED,
424 },
425};
426
427static const struct gpio_led_platform_data ep93xx_led_data __initconst = {
428 .num_leds = ARRAY_SIZE(ep93xx_led_pins),
429 .leds = ep93xx_led_pins,
430};
431
432
433
434
435static struct resource ep93xx_pwm0_resource[] = {
436 DEFINE_RES_MEM(EP93XX_PWM_PHYS_BASE, 0x10),
437};
438
439static struct platform_device ep93xx_pwm0_device = {
440 .name = "ep93xx-pwm",
441 .id = 0,
442 .num_resources = ARRAY_SIZE(ep93xx_pwm0_resource),
443 .resource = ep93xx_pwm0_resource,
444};
445
446static struct resource ep93xx_pwm1_resource[] = {
447 DEFINE_RES_MEM(EP93XX_PWM_PHYS_BASE + 0x20, 0x10),
448};
449
450static struct platform_device ep93xx_pwm1_device = {
451 .name = "ep93xx-pwm",
452 .id = 1,
453 .num_resources = ARRAY_SIZE(ep93xx_pwm1_resource),
454 .resource = ep93xx_pwm1_resource,
455};
456
457void __init ep93xx_register_pwm(int pwm0, int pwm1)
458{
459 if (pwm0)
460 platform_device_register(&ep93xx_pwm0_device);
461
462
463 if (pwm1)
464 platform_device_register(&ep93xx_pwm1_device);
465}
466
467int ep93xx_pwm_acquire_gpio(struct platform_device *pdev)
468{
469 int err;
470
471 if (pdev->id == 0) {
472 err = 0;
473 } else if (pdev->id == 1) {
474 err = gpio_request(EP93XX_GPIO_LINE_EGPIO14,
475 dev_name(&pdev->dev));
476 if (err)
477 return err;
478 err = gpio_direction_output(EP93XX_GPIO_LINE_EGPIO14, 0);
479 if (err)
480 goto fail;
481
482
483 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_PONG);
484 } else {
485 err = -ENODEV;
486 }
487
488 return err;
489
490fail:
491 gpio_free(EP93XX_GPIO_LINE_EGPIO14);
492 return err;
493}
494EXPORT_SYMBOL(ep93xx_pwm_acquire_gpio);
495
496void ep93xx_pwm_release_gpio(struct platform_device *pdev)
497{
498 if (pdev->id == 1) {
499 gpio_direction_input(EP93XX_GPIO_LINE_EGPIO14);
500 gpio_free(EP93XX_GPIO_LINE_EGPIO14);
501
502
503 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_PONG);
504 }
505}
506EXPORT_SYMBOL(ep93xx_pwm_release_gpio);
507
508
509
510
511
512static struct ep93xxfb_mach_info ep93xxfb_data;
513
514static struct resource ep93xx_fb_resource[] = {
515 DEFINE_RES_MEM(EP93XX_RASTER_PHYS_BASE, 0x800),
516};
517
518static struct platform_device ep93xx_fb_device = {
519 .name = "ep93xx-fb",
520 .id = -1,
521 .dev = {
522 .platform_data = &ep93xxfb_data,
523 .coherent_dma_mask = DMA_BIT_MASK(32),
524 .dma_mask = &ep93xx_fb_device.dev.coherent_dma_mask,
525 },
526 .num_resources = ARRAY_SIZE(ep93xx_fb_resource),
527 .resource = ep93xx_fb_resource,
528};
529
530
531#define EP93XX_RASTER_REG_BRIGHTNESS 0x20
532
533static struct resource ep93xx_bl_resources[] = {
534 DEFINE_RES_MEM(EP93XX_RASTER_PHYS_BASE +
535 EP93XX_RASTER_REG_BRIGHTNESS, 0x04),
536};
537
538static struct platform_device ep93xx_bl_device = {
539 .name = "ep93xx-bl",
540 .id = -1,
541 .num_resources = ARRAY_SIZE(ep93xx_bl_resources),
542 .resource = ep93xx_bl_resources,
543};
544
545
546
547
548
549void __init ep93xx_register_fb(struct ep93xxfb_mach_info *data)
550{
551 ep93xxfb_data = *data;
552 platform_device_register(&ep93xx_fb_device);
553 platform_device_register(&ep93xx_bl_device);
554}
555
556
557
558
559
560static struct ep93xx_keypad_platform_data ep93xx_keypad_data;
561
562static struct resource ep93xx_keypad_resource[] = {
563 DEFINE_RES_MEM(EP93XX_KEY_MATRIX_PHYS_BASE, 0x0c),
564 DEFINE_RES_IRQ(IRQ_EP93XX_KEY),
565};
566
567static struct platform_device ep93xx_keypad_device = {
568 .name = "ep93xx-keypad",
569 .id = -1,
570 .dev = {
571 .platform_data = &ep93xx_keypad_data,
572 },
573 .num_resources = ARRAY_SIZE(ep93xx_keypad_resource),
574 .resource = ep93xx_keypad_resource,
575};
576
577
578
579
580
581void __init ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data)
582{
583 ep93xx_keypad_data = *data;
584 platform_device_register(&ep93xx_keypad_device);
585}
586
587int ep93xx_keypad_acquire_gpio(struct platform_device *pdev)
588{
589 int err;
590 int i;
591
592 for (i = 0; i < 8; i++) {
593 err = gpio_request(EP93XX_GPIO_LINE_C(i), dev_name(&pdev->dev));
594 if (err)
595 goto fail_gpio_c;
596 err = gpio_request(EP93XX_GPIO_LINE_D(i), dev_name(&pdev->dev));
597 if (err)
598 goto fail_gpio_d;
599 }
600
601
602 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_KEYS |
603 EP93XX_SYSCON_DEVCFG_GONK);
604
605 return 0;
606
607fail_gpio_d:
608 gpio_free(EP93XX_GPIO_LINE_C(i));
609fail_gpio_c:
610 for (--i; i >= 0; --i) {
611 gpio_free(EP93XX_GPIO_LINE_C(i));
612 gpio_free(EP93XX_GPIO_LINE_D(i));
613 }
614 return err;
615}
616EXPORT_SYMBOL(ep93xx_keypad_acquire_gpio);
617
618void ep93xx_keypad_release_gpio(struct platform_device *pdev)
619{
620 int i;
621
622 for (i = 0; i < 8; i++) {
623 gpio_free(EP93XX_GPIO_LINE_C(i));
624 gpio_free(EP93XX_GPIO_LINE_D(i));
625 }
626
627
628 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS |
629 EP93XX_SYSCON_DEVCFG_GONK);
630}
631EXPORT_SYMBOL(ep93xx_keypad_release_gpio);
632
633
634
635
636static struct resource ep93xx_i2s_resource[] = {
637 DEFINE_RES_MEM(EP93XX_I2S_PHYS_BASE, 0x100),
638};
639
640static struct platform_device ep93xx_i2s_device = {
641 .name = "ep93xx-i2s",
642 .id = -1,
643 .num_resources = ARRAY_SIZE(ep93xx_i2s_resource),
644 .resource = ep93xx_i2s_resource,
645};
646
647static struct platform_device ep93xx_pcm_device = {
648 .name = "ep93xx-pcm-audio",
649 .id = -1,
650};
651
652void __init ep93xx_register_i2s(void)
653{
654 platform_device_register(&ep93xx_i2s_device);
655 platform_device_register(&ep93xx_pcm_device);
656}
657
658#define EP93XX_SYSCON_DEVCFG_I2S_MASK (EP93XX_SYSCON_DEVCFG_I2SONSSP | \
659 EP93XX_SYSCON_DEVCFG_I2SONAC97)
660
661#define EP93XX_I2SCLKDIV_MASK (EP93XX_SYSCON_I2SCLKDIV_ORIDE | \
662 EP93XX_SYSCON_I2SCLKDIV_SPOL)
663
664int ep93xx_i2s_acquire(void)
665{
666 unsigned val;
667
668 ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_I2SONAC97,
669 EP93XX_SYSCON_DEVCFG_I2S_MASK);
670
671
672
673
674
675
676
677 val = __raw_readl(EP93XX_SYSCON_I2SCLKDIV);
678 val &= ~EP93XX_I2SCLKDIV_MASK;
679 val |= EP93XX_SYSCON_I2SCLKDIV_ORIDE | EP93XX_SYSCON_I2SCLKDIV_SPOL;
680 ep93xx_syscon_swlocked_write(val, EP93XX_SYSCON_I2SCLKDIV);
681
682 return 0;
683}
684EXPORT_SYMBOL(ep93xx_i2s_acquire);
685
686void ep93xx_i2s_release(void)
687{
688 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
689}
690EXPORT_SYMBOL(ep93xx_i2s_release);
691
692
693
694
695static struct resource ep93xx_ac97_resources[] = {
696 DEFINE_RES_MEM(EP93XX_AAC_PHYS_BASE, 0xac),
697 DEFINE_RES_IRQ(IRQ_EP93XX_AACINTR),
698};
699
700static struct platform_device ep93xx_ac97_device = {
701 .name = "ep93xx-ac97",
702 .id = -1,
703 .num_resources = ARRAY_SIZE(ep93xx_ac97_resources),
704 .resource = ep93xx_ac97_resources,
705};
706
707void __init ep93xx_register_ac97(void)
708{
709
710
711
712 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97);
713
714 platform_device_register(&ep93xx_ac97_device);
715 platform_device_register(&ep93xx_pcm_device);
716}
717
718
719
720
721static struct resource ep93xx_wdt_resources[] = {
722 DEFINE_RES_MEM(EP93XX_WATCHDOG_PHYS_BASE, 0x08),
723};
724
725static struct platform_device ep93xx_wdt_device = {
726 .name = "ep93xx-wdt",
727 .id = -1,
728 .num_resources = ARRAY_SIZE(ep93xx_wdt_resources),
729 .resource = ep93xx_wdt_resources,
730};
731
732
733
734
735static struct resource ep93xx_ide_resources[] = {
736 DEFINE_RES_MEM(EP93XX_IDE_PHYS_BASE, 0x38),
737 DEFINE_RES_IRQ(IRQ_EP93XX_EXT3),
738};
739
740static struct platform_device ep93xx_ide_device = {
741 .name = "ep93xx-ide",
742 .id = -1,
743 .dev = {
744 .dma_mask = &ep93xx_ide_device.dev.coherent_dma_mask,
745 .coherent_dma_mask = DMA_BIT_MASK(32),
746 },
747 .num_resources = ARRAY_SIZE(ep93xx_ide_resources),
748 .resource = ep93xx_ide_resources,
749};
750
751void __init ep93xx_register_ide(void)
752{
753 platform_device_register(&ep93xx_ide_device);
754}
755
756int ep93xx_ide_acquire_gpio(struct platform_device *pdev)
757{
758 int err;
759 int i;
760
761 err = gpio_request(EP93XX_GPIO_LINE_EGPIO2, dev_name(&pdev->dev));
762 if (err)
763 return err;
764 err = gpio_request(EP93XX_GPIO_LINE_EGPIO15, dev_name(&pdev->dev));
765 if (err)
766 goto fail_egpio15;
767 for (i = 2; i < 8; i++) {
768 err = gpio_request(EP93XX_GPIO_LINE_E(i), dev_name(&pdev->dev));
769 if (err)
770 goto fail_gpio_e;
771 }
772 for (i = 4; i < 8; i++) {
773 err = gpio_request(EP93XX_GPIO_LINE_G(i), dev_name(&pdev->dev));
774 if (err)
775 goto fail_gpio_g;
776 }
777 for (i = 0; i < 8; i++) {
778 err = gpio_request(EP93XX_GPIO_LINE_H(i), dev_name(&pdev->dev));
779 if (err)
780 goto fail_gpio_h;
781 }
782
783
784 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_EONIDE |
785 EP93XX_SYSCON_DEVCFG_GONIDE |
786 EP93XX_SYSCON_DEVCFG_HONIDE);
787 return 0;
788
789fail_gpio_h:
790 for (--i; i >= 0; --i)
791 gpio_free(EP93XX_GPIO_LINE_H(i));
792 i = 8;
793fail_gpio_g:
794 for (--i; i >= 4; --i)
795 gpio_free(EP93XX_GPIO_LINE_G(i));
796 i = 8;
797fail_gpio_e:
798 for (--i; i >= 2; --i)
799 gpio_free(EP93XX_GPIO_LINE_E(i));
800 gpio_free(EP93XX_GPIO_LINE_EGPIO15);
801fail_egpio15:
802 gpio_free(EP93XX_GPIO_LINE_EGPIO2);
803 return err;
804}
805EXPORT_SYMBOL(ep93xx_ide_acquire_gpio);
806
807void ep93xx_ide_release_gpio(struct platform_device *pdev)
808{
809 int i;
810
811 for (i = 2; i < 8; i++)
812 gpio_free(EP93XX_GPIO_LINE_E(i));
813 for (i = 4; i < 8; i++)
814 gpio_free(EP93XX_GPIO_LINE_G(i));
815 for (i = 0; i < 8; i++)
816 gpio_free(EP93XX_GPIO_LINE_H(i));
817 gpio_free(EP93XX_GPIO_LINE_EGPIO15);
818 gpio_free(EP93XX_GPIO_LINE_EGPIO2);
819
820
821
822 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_EONIDE |
823 EP93XX_SYSCON_DEVCFG_GONIDE |
824 EP93XX_SYSCON_DEVCFG_HONIDE);
825}
826EXPORT_SYMBOL(ep93xx_ide_release_gpio);
827
828
829
830
831static struct resource ep93xx_adc_resources[] = {
832 DEFINE_RES_MEM(EP93XX_ADC_PHYS_BASE, 0x28),
833 DEFINE_RES_IRQ(IRQ_EP93XX_TOUCH),
834};
835
836static struct platform_device ep93xx_adc_device = {
837 .name = "ep93xx-adc",
838 .id = -1,
839 .num_resources = ARRAY_SIZE(ep93xx_adc_resources),
840 .resource = ep93xx_adc_resources,
841};
842
843void __init ep93xx_register_adc(void)
844{
845
846 ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_TIN,
847 EP93XX_SYSCON_DEVCFG_ADCPD);
848
849 platform_device_register(&ep93xx_adc_device);
850}
851
852
853
854
855
856
857
858
859
860
861
862#define EP93XX_SECURITY_REG(x) (EP93XX_SECURITY_BASE + (x))
863#define EP93XX_SECURITY_SECFLG EP93XX_SECURITY_REG(0x2400)
864#define EP93XX_SECURITY_FUSEFLG EP93XX_SECURITY_REG(0x2410)
865#define EP93XX_SECURITY_UNIQID EP93XX_SECURITY_REG(0x2440)
866#define EP93XX_SECURITY_UNIQCHK EP93XX_SECURITY_REG(0x2450)
867#define EP93XX_SECURITY_UNIQVAL EP93XX_SECURITY_REG(0x2460)
868#define EP93XX_SECURITY_SECID1 EP93XX_SECURITY_REG(0x2500)
869#define EP93XX_SECURITY_SECID2 EP93XX_SECURITY_REG(0x2504)
870#define EP93XX_SECURITY_SECCHK1 EP93XX_SECURITY_REG(0x2520)
871#define EP93XX_SECURITY_SECCHK2 EP93XX_SECURITY_REG(0x2524)
872#define EP93XX_SECURITY_UNIQID2 EP93XX_SECURITY_REG(0x2700)
873#define EP93XX_SECURITY_UNIQID3 EP93XX_SECURITY_REG(0x2704)
874#define EP93XX_SECURITY_UNIQID4 EP93XX_SECURITY_REG(0x2708)
875#define EP93XX_SECURITY_UNIQID5 EP93XX_SECURITY_REG(0x270c)
876
877static char ep93xx_soc_id[33];
878
879static const char __init *ep93xx_get_soc_id(void)
880{
881 unsigned int id, id2, id3, id4, id5;
882
883 if (__raw_readl(EP93XX_SECURITY_UNIQVAL) != 1)
884 return "bad Hamming code";
885
886 id = __raw_readl(EP93XX_SECURITY_UNIQID);
887 id2 = __raw_readl(EP93XX_SECURITY_UNIQID2);
888 id3 = __raw_readl(EP93XX_SECURITY_UNIQID3);
889 id4 = __raw_readl(EP93XX_SECURITY_UNIQID4);
890 id5 = __raw_readl(EP93XX_SECURITY_UNIQID5);
891
892 if (id != id2)
893 return "invalid";
894
895
896 add_device_randomness(&id2, 4);
897 add_device_randomness(&id3, 4);
898 add_device_randomness(&id4, 4);
899 add_device_randomness(&id5, 4);
900
901 snprintf(ep93xx_soc_id, sizeof(ep93xx_soc_id),
902 "%08x%08x%08x%08x", id2, id3, id4, id5);
903
904 return ep93xx_soc_id;
905}
906
907static const char __init *ep93xx_get_soc_rev(void)
908{
909 int rev = ep93xx_chip_revision();
910
911 switch (rev) {
912 case EP93XX_CHIP_REV_D0:
913 return "D0";
914 case EP93XX_CHIP_REV_D1:
915 return "D1";
916 case EP93XX_CHIP_REV_E0:
917 return "E0";
918 case EP93XX_CHIP_REV_E1:
919 return "E1";
920 case EP93XX_CHIP_REV_E2:
921 return "E2";
922 default:
923 return "unknown";
924 }
925}
926
927static const char __init *ep93xx_get_machine_name(void)
928{
929 return kasprintf(GFP_KERNEL,"%s", machine_desc->name);
930}
931
932static struct device __init *ep93xx_init_soc(void)
933{
934 struct soc_device_attribute *soc_dev_attr;
935 struct soc_device *soc_dev;
936
937 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
938 if (!soc_dev_attr)
939 return NULL;
940
941 soc_dev_attr->machine = ep93xx_get_machine_name();
942 soc_dev_attr->family = "Cirrus Logic EP93xx";
943 soc_dev_attr->revision = ep93xx_get_soc_rev();
944 soc_dev_attr->soc_id = ep93xx_get_soc_id();
945
946 soc_dev = soc_device_register(soc_dev_attr);
947 if (IS_ERR(soc_dev)) {
948 kfree(soc_dev_attr->machine);
949 kfree(soc_dev_attr);
950 return NULL;
951 }
952
953 return soc_device_to_device(soc_dev);
954}
955
956struct device __init *ep93xx_init_devices(void)
957{
958 struct device *parent;
959
960
961 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_CPENA);
962
963
964 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS |
965 EP93XX_SYSCON_DEVCFG_GONK |
966 EP93XX_SYSCON_DEVCFG_EONIDE |
967 EP93XX_SYSCON_DEVCFG_GONIDE |
968 EP93XX_SYSCON_DEVCFG_HONIDE);
969
970 parent = ep93xx_init_soc();
971
972
973 platform_device_register(&ep93xx_gpio_device);
974
975 amba_device_register(&uart1_device, &iomem_resource);
976 amba_device_register(&uart2_device, &iomem_resource);
977 amba_device_register(&uart3_device, &iomem_resource);
978
979 platform_device_register(&ep93xx_rtc_device);
980 platform_device_register(&ep93xx_ohci_device);
981 platform_device_register(&ep93xx_wdt_device);
982
983 gpio_led_register_device(-1, &ep93xx_led_data);
984
985 return parent;
986}
987
988void ep93xx_restart(enum reboot_mode mode, const char *cmd)
989{
990
991
992
993 ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_SWRST);
994 ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_SWRST);
995
996 while (1)
997 ;
998}
999
1000void __init ep93xx_init_late(void)
1001{
1002 crunch_init();
1003}
1004
