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12#include <linux/init.h>
13#include <linux/kernel.h>
14#include <linux/module.h>
15#include <linux/errno.h>
16#include <linux/gpio/gpio-reg.h>
17#include <linux/ioport.h>
18#include <linux/platform_data/sa11x0-serial.h>
19#include <linux/serial_core.h>
20#include <linux/platform_device.h>
21#include <linux/mfd/ucb1x00.h>
22#include <linux/mtd/mtd.h>
23#include <linux/mtd/partitions.h>
24#include <linux/delay.h>
25#include <linux/mm.h>
26#include <linux/leds.h>
27#include <linux/slab.h>
28
29#include <video/sa1100fb.h>
30
31#include <mach/hardware.h>
32#include <asm/mach-types.h>
33#include <asm/setup.h>
34#include <asm/page.h>
35#include <asm/pgtable-hwdef.h>
36#include <asm/pgtable.h>
37#include <asm/tlbflush.h>
38
39#include <asm/mach/arch.h>
40#include <asm/mach/flash.h>
41#include <linux/platform_data/irda-sa11x0.h>
42#include <asm/mach/map.h>
43#include <mach/assabet.h>
44#include <linux/platform_data/mfd-mcp-sa11x0.h>
45#include <mach/irqs.h>
46
47#include "generic.h"
48
49#define ASSABET_BCR_DB1110 \
50 (ASSABET_BCR_SPK_OFF | \
51 ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
52 ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
53 ASSABET_BCR_IRDA_MD0)
54
55#define ASSABET_BCR_DB1111 \
56 (ASSABET_BCR_SPK_OFF | \
57 ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
58 ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
59 ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_STEREO_LB | \
60 ASSABET_BCR_IRDA_MD0 | ASSABET_BCR_CF_RST)
61
62unsigned long SCR_value = ASSABET_SCR_INIT;
63EXPORT_SYMBOL(SCR_value);
64
65static struct gpio_chip *assabet_bcr_gc;
66
67static const char *assabet_names[] = {
68 "cf_pwr", "cf_gfx_reset", "nsoft_reset", "irda_fsel",
69 "irda_md0", "irda_md1", "stereo_loopback", "ncf_bus_on",
70 "audio_pwr_on", "light_pwr_on", "lcd16data", "lcd_pwr_on",
71 "rs232_on", "nred_led", "ngreen_led", "vib_on",
72 "com_dtr", "com_rts", "radio_wake_mod", "i2c_enab",
73 "tvir_enab", "qmute", "radio_pwr_on", "spkr_off",
74 "rs232_valid", "com_dcd", "com_cts", "com_dsr",
75 "radio_cts", "radio_dsr", "radio_dcd", "radio_ri",
76};
77
78
79void ASSABET_BCR_frob(unsigned int mask, unsigned int val)
80{
81 unsigned long m = mask, v = val;
82
83 assabet_bcr_gc->set_multiple(assabet_bcr_gc, &m, &v);
84}
85EXPORT_SYMBOL(ASSABET_BCR_frob);
86
87static int __init assabet_init_gpio(void __iomem *reg, u32 def_val)
88{
89 struct gpio_chip *gc;
90
91 writel_relaxed(def_val, reg);
92
93 gc = gpio_reg_init(NULL, reg, -1, 32, "assabet", 0xff000000, def_val,
94 assabet_names, NULL, NULL);
95
96 if (IS_ERR(gc))
97 return PTR_ERR(gc);
98
99 assabet_bcr_gc = gc;
100
101 return gc->base;
102}
103
104
105
106
107
108
109
110
111
112
113
114#define RST_UCB1X00 (1 << 0)
115#define RST_UDA1341 (1 << 1)
116#define RST_ADV7171 (1 << 2)
117
118#define SDA GPIO_GPIO(15)
119#define SCK GPIO_GPIO(18)
120#define MOD GPIO_GPIO(17)
121
122static void adv7171_start(void)
123{
124 GPSR = SCK;
125 udelay(1);
126 GPSR = SDA;
127 udelay(2);
128 GPCR = SDA;
129}
130
131static void adv7171_stop(void)
132{
133 GPSR = SCK;
134 udelay(2);
135 GPSR = SDA;
136 udelay(1);
137}
138
139static void adv7171_send(unsigned byte)
140{
141 unsigned i;
142
143 for (i = 0; i < 8; i++, byte <<= 1) {
144 GPCR = SCK;
145 udelay(1);
146 if (byte & 0x80)
147 GPSR = SDA;
148 else
149 GPCR = SDA;
150 udelay(1);
151 GPSR = SCK;
152 udelay(1);
153 }
154 GPCR = SCK;
155 udelay(1);
156 GPSR = SDA;
157 udelay(1);
158 GPDR &= ~SDA;
159 GPSR = SCK;
160 udelay(1);
161 if (GPLR & SDA)
162 printk(KERN_WARNING "No ACK from ADV7171\n");
163 udelay(1);
164 GPCR = SCK | SDA;
165 udelay(1);
166 GPDR |= SDA;
167 udelay(1);
168}
169
170static void adv7171_write(unsigned reg, unsigned val)
171{
172 unsigned gpdr = GPDR;
173 unsigned gplr = GPLR;
174
175 ASSABET_BCR_frob(ASSABET_BCR_AUDIO_ON, ASSABET_BCR_AUDIO_ON);
176 udelay(100);
177
178 GPCR = SDA | SCK | MOD;
179 GPDR = (GPDR | SCK | MOD) & ~SDA;
180 udelay(10);
181 if (!(GPLR & SDA))
182 printk(KERN_WARNING "Something dragging SDA down?\n");
183 GPDR |= SDA;
184
185 adv7171_start();
186 adv7171_send(0x54);
187 adv7171_send(reg);
188 adv7171_send(val);
189 adv7171_stop();
190
191
192 GPSR = gplr & (SDA | SCK | MOD);
193 GPCR = (~gplr) & (SDA | SCK | MOD);
194 GPDR = gpdr;
195}
196
197static void adv7171_sleep(void)
198{
199
200 adv7171_write(0x04, 0x40);
201}
202
203static unsigned codec_nreset;
204
205static void assabet_codec_reset(unsigned mask, int set)
206{
207 unsigned long flags;
208 bool old;
209
210 local_irq_save(flags);
211 old = !codec_nreset;
212 if (set)
213 codec_nreset &= ~mask;
214 else
215 codec_nreset |= mask;
216
217 if (old != !codec_nreset) {
218 if (codec_nreset) {
219 ASSABET_BCR_set(ASSABET_BCR_NCODEC_RST);
220 adv7171_sleep();
221 } else {
222 ASSABET_BCR_clear(ASSABET_BCR_NCODEC_RST);
223 }
224 }
225 local_irq_restore(flags);
226}
227
228static void assabet_ucb1x00_reset(enum ucb1x00_reset state)
229{
230 int set = state == UCB_RST_REMOVE || state == UCB_RST_SUSPEND ||
231 state == UCB_RST_PROBE_FAIL;
232 assabet_codec_reset(RST_UCB1X00, set);
233}
234
235void assabet_uda1341_reset(int set)
236{
237 assabet_codec_reset(RST_UDA1341, set);
238}
239EXPORT_SYMBOL(assabet_uda1341_reset);
240
241
242
243
244
245
246#ifdef ASSABET_REV_4
247
248
249
250static struct mtd_partition assabet_partitions[] = {
251 {
252 .name = "bootloader",
253 .size = 0x00020000,
254 .offset = 0,
255 .mask_flags = MTD_WRITEABLE,
256 }, {
257 .name = "bootloader params",
258 .size = 0x00020000,
259 .offset = MTDPART_OFS_APPEND,
260 .mask_flags = MTD_WRITEABLE,
261 }, {
262 .name = "jffs",
263 .size = MTDPART_SIZ_FULL,
264 .offset = MTDPART_OFS_APPEND,
265 }
266};
267#else
268
269
270
271static struct mtd_partition assabet_partitions[] = {
272 {
273 .name = "bootloader",
274 .size = 0x00040000,
275 .offset = 0,
276 .mask_flags = MTD_WRITEABLE,
277 }, {
278 .name = "bootloader params",
279 .size = 0x00040000,
280 .offset = MTDPART_OFS_APPEND,
281 .mask_flags = MTD_WRITEABLE,
282 }, {
283 .name = "jffs",
284 .size = MTDPART_SIZ_FULL,
285 .offset = MTDPART_OFS_APPEND,
286 }
287};
288#endif
289
290static struct flash_platform_data assabet_flash_data = {
291 .map_name = "cfi_probe",
292 .parts = assabet_partitions,
293 .nr_parts = ARRAY_SIZE(assabet_partitions),
294};
295
296static struct resource assabet_flash_resources[] = {
297 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
298 DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_32M),
299};
300
301
302
303
304
305
306static int assabet_irda_set_power(struct device *dev, unsigned int state)
307{
308 static unsigned int bcr_state[4] = {
309 ASSABET_BCR_IRDA_MD0,
310 ASSABET_BCR_IRDA_MD1|ASSABET_BCR_IRDA_MD0,
311 ASSABET_BCR_IRDA_MD1,
312 0
313 };
314
315 if (state < 4)
316 ASSABET_BCR_frob(ASSABET_BCR_IRDA_MD1 | ASSABET_BCR_IRDA_MD0,
317 bcr_state[state]);
318 return 0;
319}
320
321static void assabet_irda_set_speed(struct device *dev, unsigned int speed)
322{
323 if (speed < 4000000)
324 ASSABET_BCR_clear(ASSABET_BCR_IRDA_FSEL);
325 else
326 ASSABET_BCR_set(ASSABET_BCR_IRDA_FSEL);
327}
328
329static struct irda_platform_data assabet_irda_data = {
330 .set_power = assabet_irda_set_power,
331 .set_speed = assabet_irda_set_speed,
332};
333
334static struct ucb1x00_plat_data assabet_ucb1x00_data = {
335 .reset = assabet_ucb1x00_reset,
336 .gpio_base = -1,
337 .can_wakeup = 1,
338};
339
340static struct mcp_plat_data assabet_mcp_data = {
341 .mccr0 = MCCR0_ADM,
342 .sclk_rate = 11981000,
343 .codec_pdata = &assabet_ucb1x00_data,
344};
345
346static void assabet_lcd_set_visual(u32 visual)
347{
348 u_int is_true_color = visual == FB_VISUAL_TRUECOLOR;
349
350 if (machine_is_assabet()) {
351#if 1
352 if (is_true_color)
353 ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
354 else
355 ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
356#else
357
358 if (is_true_color)
359 ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
360 else
361 ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
362#endif
363 }
364}
365
366#ifndef ASSABET_PAL_VIDEO
367static void assabet_lcd_backlight_power(int on)
368{
369 if (on)
370 ASSABET_BCR_set(ASSABET_BCR_LIGHT_ON);
371 else
372 ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
373}
374
375
376
377
378
379
380static void assabet_lcd_power(int on)
381{
382 if (on) {
383 ASSABET_BCR_set(ASSABET_BCR_LCD_ON);
384 udelay(500);
385 } else
386 ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
387}
388
389
390
391
392
393
394static struct sa1100fb_mach_info lq039q2ds54_info = {
395 .pixclock = 171521, .bpp = 16,
396 .xres = 320, .yres = 240,
397
398 .hsync_len = 5, .vsync_len = 1,
399 .left_margin = 61, .upper_margin = 3,
400 .right_margin = 9, .lower_margin = 0,
401
402 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
403
404 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
405 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
406
407 .backlight_power = assabet_lcd_backlight_power,
408 .lcd_power = assabet_lcd_power,
409 .set_visual = assabet_lcd_set_visual,
410};
411#else
412static void assabet_pal_backlight_power(int on)
413{
414 ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
415}
416
417static void assabet_pal_power(int on)
418{
419 ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
420}
421
422static struct sa1100fb_mach_info pal_info = {
423 .pixclock = 67797, .bpp = 16,
424 .xres = 640, .yres = 512,
425
426 .hsync_len = 64, .vsync_len = 6,
427 .left_margin = 125, .upper_margin = 70,
428 .right_margin = 115, .lower_margin = 36,
429
430 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
431 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(512),
432
433 .backlight_power = assabet_pal_backlight_power,
434 .lcd_power = assabet_pal_power,
435 .set_visual = assabet_lcd_set_visual,
436};
437#endif
438
439#ifdef CONFIG_ASSABET_NEPONSET
440static struct resource neponset_resources[] = {
441 DEFINE_RES_MEM(0x10000000, 0x08000000),
442 DEFINE_RES_MEM(0x18000000, 0x04000000),
443 DEFINE_RES_MEM(0x40000000, SZ_8K),
444 DEFINE_RES_IRQ(IRQ_GPIO25),
445};
446#endif
447
448static void __init assabet_init(void)
449{
450
451
452
453 GPSR = GPIO_GPIO16;
454 GPDR |= GPIO_GPIO16;
455
456
457
458
459
460
461
462 GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
463 GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
464
465
466
467
468
469
470 GPCR = GPIO_GPIO27;
471 GPDR |= GPIO_GPIO27;
472
473
474
475
476 PWER = PWER_GPIO0;
477 PGSR = 0;
478 PCFR = 0;
479 PSDR = 0;
480 PPDR |= PPC_TXD3 | PPC_TXD1;
481 PPSR |= PPC_TXD3 | PPC_TXD1;
482
483 sa11x0_ppc_configure_mcp();
484
485 if (machine_has_neponset()) {
486#ifndef CONFIG_ASSABET_NEPONSET
487 printk( "Warning: Neponset detected but full support "
488 "hasn't been configured in the kernel\n" );
489#else
490 platform_device_register_simple("neponset", 0,
491 neponset_resources, ARRAY_SIZE(neponset_resources));
492#endif
493 }
494
495#ifndef ASSABET_PAL_VIDEO
496 sa11x0_register_lcd(&lq039q2ds54_info);
497#else
498 sa11x0_register_lcd(&pal_video);
499#endif
500 sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
501 ARRAY_SIZE(assabet_flash_resources));
502 sa11x0_register_irda(&assabet_irda_data);
503 sa11x0_register_mcp(&assabet_mcp_data);
504}
505
506
507
508
509
510
511
512static void __init map_sa1100_gpio_regs( void )
513{
514 unsigned long phys = __PREG(GPLR) & PMD_MASK;
515 unsigned long virt = (unsigned long)io_p2v(phys);
516 int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO);
517 pmd_t *pmd;
518
519 pmd = pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt);
520 *pmd = __pmd(phys | prot);
521 flush_pmd_entry(pmd);
522}
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537static void __init get_assabet_scr(void)
538{
539 unsigned long uninitialized_var(scr), i;
540
541 GPDR |= 0x3fc;
542 GPSR = 0x3fc;
543 GPDR &= ~(0x3fc);
544 for(i = 100; i--; )
545 scr = GPLR;
546 GPDR |= 0x3fc;
547 scr &= 0x3fc;
548 SCR_value = scr;
549}
550
551static void __init
552fixup_assabet(struct tag *tags, char **cmdline)
553{
554
555 map_sa1100_gpio_regs();
556 get_assabet_scr();
557
558 if (machine_has_neponset())
559 printk("Neponset expansion board detected\n");
560}
561
562
563static void assabet_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
564{
565 if (port->mapbase == _Ser1UTCR0) {
566 if (state)
567 ASSABET_BCR_clear(ASSABET_BCR_RS232EN |
568 ASSABET_BCR_COM_RTS |
569 ASSABET_BCR_COM_DTR);
570 else
571 ASSABET_BCR_set(ASSABET_BCR_RS232EN |
572 ASSABET_BCR_COM_RTS |
573 ASSABET_BCR_COM_DTR);
574 }
575}
576
577
578
579
580
581static void assabet_set_mctrl(struct uart_port *port, u_int mctrl)
582{
583 if (port->mapbase == _Ser1UTCR0) {
584 u_int set = 0, clear = 0;
585
586 if (mctrl & TIOCM_RTS)
587 clear |= ASSABET_BCR_COM_RTS;
588 else
589 set |= ASSABET_BCR_COM_RTS;
590
591 if (mctrl & TIOCM_DTR)
592 clear |= ASSABET_BCR_COM_DTR;
593 else
594 set |= ASSABET_BCR_COM_DTR;
595
596 ASSABET_BCR_clear(clear);
597 ASSABET_BCR_set(set);
598 }
599}
600
601static u_int assabet_get_mctrl(struct uart_port *port)
602{
603 u_int ret = 0;
604 u_int bsr = ASSABET_BSR;
605
606
607 bsr = ASSABET_BSR;
608
609 if (port->mapbase == _Ser1UTCR0) {
610 if (bsr & ASSABET_BSR_COM_DCD)
611 ret |= TIOCM_CD;
612 if (bsr & ASSABET_BSR_COM_CTS)
613 ret |= TIOCM_CTS;
614 if (bsr & ASSABET_BSR_COM_DSR)
615 ret |= TIOCM_DSR;
616 } else if (port->mapbase == _Ser3UTCR0) {
617 if (bsr & ASSABET_BSR_RAD_DCD)
618 ret |= TIOCM_CD;
619 if (bsr & ASSABET_BSR_RAD_CTS)
620 ret |= TIOCM_CTS;
621 if (bsr & ASSABET_BSR_RAD_DSR)
622 ret |= TIOCM_DSR;
623 if (bsr & ASSABET_BSR_RAD_RI)
624 ret |= TIOCM_RI;
625 } else {
626 ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
627 }
628
629 return ret;
630}
631
632static struct sa1100_port_fns assabet_port_fns __initdata = {
633 .set_mctrl = assabet_set_mctrl,
634 .get_mctrl = assabet_get_mctrl,
635 .pm = assabet_uart_pm,
636};
637
638static struct map_desc assabet_io_desc[] __initdata = {
639 {
640 .virtual = 0xf1000000,
641 .pfn = __phys_to_pfn(0x12000000),
642 .length = 0x00100000,
643 .type = MT_DEVICE
644 }, {
645 .virtual = 0xf2800000,
646 .pfn = __phys_to_pfn(0x4b800000),
647 .length = 0x00800000,
648 .type = MT_DEVICE
649 }
650};
651
652static void __init assabet_map_io(void)
653{
654 sa1100_map_io();
655 iotable_init(assabet_io_desc, ARRAY_SIZE(assabet_io_desc));
656
657
658
659
660
661 Ser1SDCR0 |= SDCR0_SUS;
662 MSC1 = (MSC1 & ~0xffff) |
663 MSC_NonBrst | MSC_32BitStMem |
664 MSC_RdAcc(2) | MSC_WrAcc(2) | MSC_Rec(0);
665
666 if (!machine_has_neponset())
667 sa1100_register_uart_fns(&assabet_port_fns);
668
669
670
671
672
673
674
675
676
677
678
679
680
681 sa1100_register_uart(0, 1);
682 sa1100_register_uart(2, 3);
683}
684
685
686#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
687struct assabet_led {
688 struct led_classdev cdev;
689 u32 mask;
690};
691
692
693
694
695
696static const struct {
697 const char *name;
698 const char *trigger;
699} assabet_leds[] = {
700 { "assabet:red", "cpu0",},
701 { "assabet:green", "heartbeat", },
702};
703
704
705
706
707
708
709static void assabet_led_set(struct led_classdev *cdev,
710 enum led_brightness b)
711{
712 struct assabet_led *led = container_of(cdev,
713 struct assabet_led, cdev);
714
715 if (b != LED_OFF)
716 ASSABET_BCR_clear(led->mask);
717 else
718 ASSABET_BCR_set(led->mask);
719}
720
721static enum led_brightness assabet_led_get(struct led_classdev *cdev)
722{
723 struct assabet_led *led = container_of(cdev,
724 struct assabet_led, cdev);
725
726 return (ASSABET_BCR & led->mask) ? LED_OFF : LED_FULL;
727}
728
729static int __init assabet_leds_init(void)
730{
731 int i;
732
733 if (!machine_is_assabet())
734 return -ENODEV;
735
736 for (i = 0; i < ARRAY_SIZE(assabet_leds); i++) {
737 struct assabet_led *led;
738
739 led = kzalloc(sizeof(*led), GFP_KERNEL);
740 if (!led)
741 break;
742
743 led->cdev.name = assabet_leds[i].name;
744 led->cdev.brightness_set = assabet_led_set;
745 led->cdev.brightness_get = assabet_led_get;
746 led->cdev.default_trigger = assabet_leds[i].trigger;
747
748 if (!i)
749 led->mask = ASSABET_BCR_LED_RED;
750 else
751 led->mask = ASSABET_BCR_LED_GREEN;
752
753 if (led_classdev_register(NULL, &led->cdev) < 0) {
754 kfree(led);
755 break;
756 }
757 }
758
759 return 0;
760}
761
762
763
764
765
766fs_initcall(assabet_leds_init);
767#endif
768
769void __init assabet_init_irq(void)
770{
771 u32 def_val;
772
773 sa1100_init_irq();
774
775 if (machine_has_neponset())
776 def_val = ASSABET_BCR_DB1111;
777 else
778 def_val = ASSABET_BCR_DB1110;
779
780
781
782
783
784
785 assabet_init_gpio((void *)&ASSABET_BCR, def_val);
786}
787
788MACHINE_START(ASSABET, "Intel-Assabet")
789 .atag_offset = 0x100,
790 .fixup = fixup_assabet,
791 .map_io = assabet_map_io,
792 .nr_irqs = SA1100_NR_IRQS,
793 .init_irq = assabet_init_irq,
794 .init_time = sa1100_timer_init,
795 .init_machine = assabet_init,
796 .init_late = sa11x0_init_late,
797#ifdef CONFIG_SA1111
798 .dma_zone_size = SZ_1M,
799#endif
800 .restart = sa11x0_restart,
801MACHINE_END
802