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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2007-10-29 10:28:07 -0400
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2008-01-25 02:31:41 -0500
commit438ff3f3cc33833206a48492e9d6674e4e82bed8 (patch)
tree5159b43453c6a86949798af889d3cb0200818b74 /arch/avr32/mach-at32ap/at32ap700x.c
parent281ef58ccf62eaa6c4e4b7e4c0a3ee6b52e84e5b (diff)
[AVR32] Add support for AT32AP7001 and AT32AP7002
These are derivatives of the AT32AP7000 chip, which means that most of the code stays the same. Rename a few files, functions, definitions and config symbols to reflect that they apply to all AP700x chips, and exclude some platform devices from chips where they aren't present. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32/mach-at32ap/at32ap700x.c')
-rw-r--r--arch/avr32/mach-at32ap/at32ap700x.c1742
1 files changed, 1742 insertions, 0 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
new file mode 100644
index 000000000000..9386e1f82fb8
--- /dev/null
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -0,0 +1,1742 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/clk.h>
9#include <linux/fb.h>
10#include <linux/init.h>
11#include <linux/platform_device.h>
12#include <linux/dma-mapping.h>
13#include <linux/spi/spi.h>
14
15#include <asm/io.h>
16
17#include <asm/arch/at32ap700x.h>
18#include <asm/arch/board.h>
19#include <asm/arch/portmux.h>
20
21#include <video/atmel_lcdc.h>
22
23#include "clock.h"
24#include "hmatrix.h"
25#include "pio.h"
26#include "pm.h"
27
28
29#define PBMEM(base) \
30 { \
31 .start = base, \
32 .end = base + 0x3ff, \
33 .flags = IORESOURCE_MEM, \
34 }
35#define IRQ(num) \
36 { \
37 .start = num, \
38 .end = num, \
39 .flags = IORESOURCE_IRQ, \
40 }
41#define NAMED_IRQ(num, _name) \
42 { \
43 .start = num, \
44 .end = num, \
45 .name = _name, \
46 .flags = IORESOURCE_IRQ, \
47 }
48
49/* REVISIT these assume *every* device supports DMA, but several
50 * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
51 */
52#define DEFINE_DEV(_name, _id) \
53static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \
54static struct platform_device _name##_id##_device = { \
55 .name = #_name, \
56 .id = _id, \
57 .dev = { \
58 .dma_mask = &_name##_id##_dma_mask, \
59 .coherent_dma_mask = DMA_32BIT_MASK, \
60 }, \
61 .resource = _name##_id##_resource, \
62 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
63}
64#define DEFINE_DEV_DATA(_name, _id) \
65static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \
66static struct platform_device _name##_id##_device = { \
67 .name = #_name, \
68 .id = _id, \
69 .dev = { \
70 .dma_mask = &_name##_id##_dma_mask, \
71 .platform_data = &_name##_id##_data, \
72 .coherent_dma_mask = DMA_32BIT_MASK, \
73 }, \
74 .resource = _name##_id##_resource, \
75 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
76}
77
78#define select_peripheral(pin, periph, flags) \
79 at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
80
81#define DEV_CLK(_name, devname, bus, _index) \
82static struct clk devname##_##_name = { \
83 .name = #_name, \
84 .dev = &devname##_device.dev, \
85 .parent = &bus##_clk, \
86 .mode = bus##_clk_mode, \
87 .get_rate = bus##_clk_get_rate, \
88 .index = _index, \
89}
90
91static DEFINE_SPINLOCK(pm_lock);
92
93unsigned long at32ap7000_osc_rates[3] = {
94 [0] = 32768,
95 /* FIXME: these are ATSTK1002-specific */
96 [1] = 20000000,
97 [2] = 12000000,
98};
99
100static unsigned long osc_get_rate(struct clk *clk)
101{
102 return at32ap7000_osc_rates[clk->index];
103}
104
105static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
106{
107 unsigned long div, mul, rate;
108
109 if (!(control & PM_BIT(PLLEN)))
110 return 0;
111
112 div = PM_BFEXT(PLLDIV, control) + 1;
113 mul = PM_BFEXT(PLLMUL, control) + 1;
114
115 rate = clk->parent->get_rate(clk->parent);
116 rate = (rate + div / 2) / div;
117 rate *= mul;
118
119 return rate;
120}
121
122static unsigned long pll0_get_rate(struct clk *clk)
123{
124 u32 control;
125
126 control = pm_readl(PLL0);
127
128 return pll_get_rate(clk, control);
129}
130
131static unsigned long pll1_get_rate(struct clk *clk)
132{
133 u32 control;
134
135 control = pm_readl(PLL1);
136
137 return pll_get_rate(clk, control);
138}
139
140/*
141 * The AT32AP7000 has five primary clock sources: One 32kHz
142 * oscillator, two crystal oscillators and two PLLs.
143 */
144static struct clk osc32k = {
145 .name = "osc32k",
146 .get_rate = osc_get_rate,
147 .users = 1,
148 .index = 0,
149};
150static struct clk osc0 = {
151 .name = "osc0",
152 .get_rate = osc_get_rate,
153 .users = 1,
154 .index = 1,
155};
156static struct clk osc1 = {
157 .name = "osc1",
158 .get_rate = osc_get_rate,
159 .index = 2,
160};
161static struct clk pll0 = {
162 .name = "pll0",
163 .get_rate = pll0_get_rate,
164 .parent = &osc0,
165};
166static struct clk pll1 = {
167 .name = "pll1",
168 .get_rate = pll1_get_rate,
169 .parent = &osc0,
170};
171
172/*
173 * The main clock can be either osc0 or pll0. The boot loader may
174 * have chosen one for us, so we don't really know which one until we
175 * have a look at the SM.
176 */
177static struct clk *main_clock;
178
179/*
180 * Synchronous clocks are generated from the main clock. The clocks
181 * must satisfy the constraint
182 * fCPU >= fHSB >= fPB
183 * i.e. each clock must not be faster than its parent.
184 */
185static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
186{
187 return main_clock->get_rate(main_clock) >> shift;
188};
189
190static void cpu_clk_mode(struct clk *clk, int enabled)
191{
192 unsigned long flags;
193 u32 mask;
194
195 spin_lock_irqsave(&pm_lock, flags);
196 mask = pm_readl(CPU_MASK);
197 if (enabled)
198 mask |= 1 << clk->index;
199 else
200 mask &= ~(1 << clk->index);
201 pm_writel(CPU_MASK, mask);
202 spin_unlock_irqrestore(&pm_lock, flags);
203}
204
205static unsigned long cpu_clk_get_rate(struct clk *clk)
206{
207 unsigned long cksel, shift = 0;
208
209 cksel = pm_readl(CKSEL);
210 if (cksel & PM_BIT(CPUDIV))
211 shift = PM_BFEXT(CPUSEL, cksel) + 1;
212
213 return bus_clk_get_rate(clk, shift);
214}
215
216static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply)
217{
218 u32 control;
219 unsigned long parent_rate, child_div, actual_rate, div;
220
221 parent_rate = clk->parent->get_rate(clk->parent);
222 control = pm_readl(CKSEL);
223
224 if (control & PM_BIT(HSBDIV))
225 child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1);
226 else
227 child_div = 1;
228
229 if (rate > 3 * (parent_rate / 4) || child_div == 1) {
230 actual_rate = parent_rate;
231 control &= ~PM_BIT(CPUDIV);
232 } else {
233 unsigned int cpusel;
234 div = (parent_rate + rate / 2) / rate;
235 if (div > child_div)
236 div = child_div;
237 cpusel = (div > 1) ? (fls(div) - 2) : 0;
238 control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control);
239 actual_rate = parent_rate / (1 << (cpusel + 1));
240 }
241
242 pr_debug("clk %s: new rate %lu (actual rate %lu)\n",
243 clk->name, rate, actual_rate);
244
245 if (apply)
246 pm_writel(CKSEL, control);
247
248 return actual_rate;
249}
250
251static void hsb_clk_mode(struct clk *clk, int enabled)
252{
253 unsigned long flags;
254 u32 mask;
255
256 spin_lock_irqsave(&pm_lock, flags);
257 mask = pm_readl(HSB_MASK);
258 if (enabled)
259 mask |= 1 << clk->index;
260 else
261 mask &= ~(1 << clk->index);
262 pm_writel(HSB_MASK, mask);
263 spin_unlock_irqrestore(&pm_lock, flags);
264}
265
266static unsigned long hsb_clk_get_rate(struct clk *clk)
267{
268 unsigned long cksel, shift = 0;
269
270 cksel = pm_readl(CKSEL);
271 if (cksel & PM_BIT(HSBDIV))
272 shift = PM_BFEXT(HSBSEL, cksel) + 1;
273
274 return bus_clk_get_rate(clk, shift);
275}
276
277static void pba_clk_mode(struct clk *clk, int enabled)
278{
279 unsigned long flags;
280 u32 mask;
281
282 spin_lock_irqsave(&pm_lock, flags);
283 mask = pm_readl(PBA_MASK);
284 if (enabled)
285 mask |= 1 << clk->index;
286 else
287 mask &= ~(1 << clk->index);
288 pm_writel(PBA_MASK, mask);
289 spin_unlock_irqrestore(&pm_lock, flags);
290}
291
292static unsigned long pba_clk_get_rate(struct clk *clk)
293{
294 unsigned long cksel, shift = 0;
295
296 cksel = pm_readl(CKSEL);
297 if (cksel & PM_BIT(PBADIV))
298 shift = PM_BFEXT(PBASEL, cksel) + 1;
299
300 return bus_clk_get_rate(clk, shift);
301}
302
303static void pbb_clk_mode(struct clk *clk, int enabled)
304{
305 unsigned long flags;
306 u32 mask;
307
308 spin_lock_irqsave(&pm_lock, flags);
309 mask = pm_readl(PBB_MASK);
310 if (enabled)
311 mask |= 1 << clk->index;
312 else
313 mask &= ~(1 << clk->index);
314 pm_writel(PBB_MASK, mask);
315 spin_unlock_irqrestore(&pm_lock, flags);
316}
317
318static unsigned long pbb_clk_get_rate(struct clk *clk)
319{
320 unsigned long cksel, shift = 0;
321
322 cksel = pm_readl(CKSEL);
323 if (cksel & PM_BIT(PBBDIV))
324 shift = PM_BFEXT(PBBSEL, cksel) + 1;
325
326 return bus_clk_get_rate(clk, shift);
327}
328
329static struct clk cpu_clk = {
330 .name = "cpu",
331 .get_rate = cpu_clk_get_rate,
332 .set_rate = cpu_clk_set_rate,
333 .users = 1,
334};
335static struct clk hsb_clk = {
336 .name = "hsb",
337 .parent = &cpu_clk,
338 .get_rate = hsb_clk_get_rate,
339};
340static struct clk pba_clk = {
341 .name = "pba",
342 .parent = &hsb_clk,
343 .mode = hsb_clk_mode,
344 .get_rate = pba_clk_get_rate,
345 .index = 1,
346};
347static struct clk pbb_clk = {
348 .name = "pbb",
349 .parent = &hsb_clk,
350 .mode = hsb_clk_mode,
351 .get_rate = pbb_clk_get_rate,
352 .users = 1,
353 .index = 2,
354};
355
356/* --------------------------------------------------------------------
357 * Generic Clock operations
358 * -------------------------------------------------------------------- */
359
360static void genclk_mode(struct clk *clk, int enabled)
361{
362 u32 control;
363
364 control = pm_readl(GCCTRL(clk->index));
365 if (enabled)
366 control |= PM_BIT(CEN);
367 else
368 control &= ~PM_BIT(CEN);
369 pm_writel(GCCTRL(clk->index), control);
370}
371
372static unsigned long genclk_get_rate(struct clk *clk)
373{
374 u32 control;
375 unsigned long div = 1;
376
377 control = pm_readl(GCCTRL(clk->index));
378 if (control & PM_BIT(DIVEN))
379 div = 2 * (PM_BFEXT(DIV, control) + 1);
380
381 return clk->parent->get_rate(clk->parent) / div;
382}
383
384static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
385{
386 u32 control;
387 unsigned long parent_rate, actual_rate, div;
388
389 parent_rate = clk->parent->get_rate(clk->parent);
390 control = pm_readl(GCCTRL(clk->index));
391
392 if (rate > 3 * parent_rate / 4) {
393 actual_rate = parent_rate;
394 control &= ~PM_BIT(DIVEN);
395 } else {
396 div = (parent_rate + rate) / (2 * rate) - 1;
397 control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN);
398 actual_rate = parent_rate / (2 * (div + 1));
399 }
400
401 dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n",
402 clk->name, rate, actual_rate);
403
404 if (apply)
405 pm_writel(GCCTRL(clk->index), control);
406
407 return actual_rate;
408}
409
410int genclk_set_parent(struct clk *clk, struct clk *parent)
411{
412 u32 control;
413
414 dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n",
415 clk->name, parent->name, clk->parent->name);
416
417 control = pm_readl(GCCTRL(clk->index));
418
419 if (parent == &osc1 || parent == &pll1)
420 control |= PM_BIT(OSCSEL);
421 else if (parent == &osc0 || parent == &pll0)
422 control &= ~PM_BIT(OSCSEL);
423 else
424 return -EINVAL;
425
426 if (parent == &pll0 || parent == &pll1)
427 control |= PM_BIT(PLLSEL);
428 else
429 control &= ~PM_BIT(PLLSEL);
430
431 pm_writel(GCCTRL(clk->index), control);
432 clk->parent = parent;
433
434 return 0;
435}
436
437static void __init genclk_init_parent(struct clk *clk)
438{
439 u32 control;
440 struct clk *parent;
441
442 BUG_ON(clk->index > 7);
443
444 control = pm_readl(GCCTRL(clk->index));
445 if (control & PM_BIT(OSCSEL))
446 parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1;
447 else
448 parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0;
449
450 clk->parent = parent;
451}
452
453/* --------------------------------------------------------------------
454 * System peripherals
455 * -------------------------------------------------------------------- */
456static struct resource at32_pm0_resource[] = {
457 {
458 .start = 0xfff00000,
459 .end = 0xfff0007f,
460 .flags = IORESOURCE_MEM,
461 },
462 IRQ(20),
463};
464
465static struct resource at32ap700x_rtc0_resource[] = {
466 {
467 .start = 0xfff00080,
468 .end = 0xfff000af,
469 .flags = IORESOURCE_MEM,
470 },
471 IRQ(21),
472};
473
474static struct resource at32_wdt0_resource[] = {
475 {
476 .start = 0xfff000b0,
477 .end = 0xfff000cf,
478 .flags = IORESOURCE_MEM,
479 },
480};
481
482static struct resource at32_eic0_resource[] = {
483 {
484 .start = 0xfff00100,
485 .end = 0xfff0013f,
486 .flags = IORESOURCE_MEM,
487 },
488 IRQ(19),
489};
490
491DEFINE_DEV(at32_pm, 0);
492DEFINE_DEV(at32ap700x_rtc, 0);
493DEFINE_DEV(at32_wdt, 0);
494DEFINE_DEV(at32_eic, 0);
495
496/*
497 * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this
498 * is always running.
499 */
500static struct clk at32_pm_pclk = {
501 .name = "pclk",
502 .dev = &at32_pm0_device.dev,
503 .parent = &pbb_clk,
504 .mode = pbb_clk_mode,
505 .get_rate = pbb_clk_get_rate,
506 .users = 1,
507 .index = 0,
508};
509
510static struct resource intc0_resource[] = {
511 PBMEM(0xfff00400),
512};
513struct platform_device at32_intc0_device = {
514 .name = "intc",
515 .id = 0,
516 .resource = intc0_resource,
517 .num_resources = ARRAY_SIZE(intc0_resource),
518};
519DEV_CLK(pclk, at32_intc0, pbb, 1);
520
521static struct clk ebi_clk = {
522 .name = "ebi",
523 .parent = &hsb_clk,
524 .mode = hsb_clk_mode,
525 .get_rate = hsb_clk_get_rate,
526 .users = 1,
527};
528static struct clk hramc_clk = {
529 .name = "hramc",
530 .parent = &hsb_clk,
531 .mode = hsb_clk_mode,
532 .get_rate = hsb_clk_get_rate,
533 .users = 1,
534 .index = 3,
535};
536
537static struct resource smc0_resource[] = {
538 PBMEM(0xfff03400),
539};
540DEFINE_DEV(smc, 0);
541DEV_CLK(pclk, smc0, pbb, 13);
542DEV_CLK(mck, smc0, hsb, 0);
543
544static struct platform_device pdc_device = {
545 .name = "pdc",
546 .id = 0,
547};
548DEV_CLK(hclk, pdc, hsb, 4);
549DEV_CLK(pclk, pdc, pba, 16);
550
551static struct clk pico_clk = {
552 .name = "pico",
553 .parent = &cpu_clk,
554 .mode = cpu_clk_mode,
555 .get_rate = cpu_clk_get_rate,
556 .users = 1,
557};
558
559static struct resource dmaca0_resource[] = {
560 {
561 .start = 0xff200000,
562 .end = 0xff20ffff,
563 .flags = IORESOURCE_MEM,
564 },
565 IRQ(2),
566};
567DEFINE_DEV(dmaca, 0);
568DEV_CLK(hclk, dmaca0, hsb, 10);
569
570/* --------------------------------------------------------------------
571 * HMATRIX
572 * -------------------------------------------------------------------- */
573
574static struct clk hmatrix_clk = {
575 .name = "hmatrix_clk",
576 .parent = &pbb_clk,
577 .mode = pbb_clk_mode,
578 .get_rate = pbb_clk_get_rate,
579 .index = 2,
580 .users = 1,
581};
582#define HMATRIX_BASE ((void __iomem *)0xfff00800)
583
584#define hmatrix_readl(reg) \
585 __raw_readl((HMATRIX_BASE) + HMATRIX_##reg)
586#define hmatrix_writel(reg,value) \
587 __raw_writel((value), (HMATRIX_BASE) + HMATRIX_##reg)
588
589/*
590 * Set bits in the HMATRIX Special Function Register (SFR) used by the
591 * External Bus Interface (EBI). This can be used to enable special
592 * features like CompactFlash support, NAND Flash support, etc. on
593 * certain chipselects.
594 */
595static inline void set_ebi_sfr_bits(u32 mask)
596{
597 u32 sfr;
598
599 clk_enable(&hmatrix_clk);
600 sfr = hmatrix_readl(SFR4);
601 sfr |= mask;
602 hmatrix_writel(SFR4, sfr);
603 clk_disable(&hmatrix_clk);
604}
605
606/* --------------------------------------------------------------------
607 * System Timer/Counter (TC)
608 * -------------------------------------------------------------------- */
609static struct resource at32_systc0_resource[] = {
610 PBMEM(0xfff00c00),
611 IRQ(22),
612};
613struct platform_device at32_systc0_device = {
614 .name = "systc",
615 .id = 0,
616 .resource = at32_systc0_resource,
617 .num_resources = ARRAY_SIZE(at32_systc0_resource),
618};
619DEV_CLK(pclk, at32_systc0, pbb, 3);
620
621/* --------------------------------------------------------------------
622 * PIO
623 * -------------------------------------------------------------------- */
624
625static struct resource pio0_resource[] = {
626 PBMEM(0xffe02800),
627 IRQ(13),
628};
629DEFINE_DEV(pio, 0);
630DEV_CLK(mck, pio0, pba, 10);
631
632static struct resource pio1_resource[] = {
633 PBMEM(0xffe02c00),
634 IRQ(14),
635};
636DEFINE_DEV(pio, 1);
637DEV_CLK(mck, pio1, pba, 11);
638
639static struct resource pio2_resource[] = {
640 PBMEM(0xffe03000),
641 IRQ(15),
642};
643DEFINE_DEV(pio, 2);
644DEV_CLK(mck, pio2, pba, 12);
645
646static struct resource pio3_resource[] = {
647 PBMEM(0xffe03400),
648 IRQ(16),
649};
650DEFINE_DEV(pio, 3);
651DEV_CLK(mck, pio3, pba, 13);
652
653static struct resource pio4_resource[] = {
654 PBMEM(0xffe03800),
655 IRQ(17),
656};
657DEFINE_DEV(pio, 4);
658DEV_CLK(mck, pio4, pba, 14);
659
660void __init at32_add_system_devices(void)
661{
662 platform_device_register(&at32_pm0_device);
663 platform_device_register(&at32_intc0_device);
664 platform_device_register(&at32ap700x_rtc0_device);
665 platform_device_register(&at32_wdt0_device);
666 platform_device_register(&at32_eic0_device);
667 platform_device_register(&smc0_device);
668 platform_device_register(&pdc_device);
669 platform_device_register(&dmaca0_device);
670
671 platform_device_register(&at32_systc0_device);
672
673 platform_device_register(&pio0_device);
674 platform_device_register(&pio1_device);
675 platform_device_register(&pio2_device);
676 platform_device_register(&pio3_device);
677 platform_device_register(&pio4_device);
678}
679
680/* --------------------------------------------------------------------
681 * USART
682 * -------------------------------------------------------------------- */
683
684static struct atmel_uart_data atmel_usart0_data = {
685 .use_dma_tx = 1,
686 .use_dma_rx = 1,
687};
688static struct resource atmel_usart0_resource[] = {
689 PBMEM(0xffe00c00),
690 IRQ(6),
691};
692DEFINE_DEV_DATA(atmel_usart, 0);
693DEV_CLK(usart, atmel_usart0, pba, 3);
694
695static struct atmel_uart_data atmel_usart1_data = {
696 .use_dma_tx = 1,
697 .use_dma_rx = 1,
698};
699static struct resource atmel_usart1_resource[] = {
700 PBMEM(0xffe01000),
701 IRQ(7),
702};
703DEFINE_DEV_DATA(atmel_usart, 1);
704DEV_CLK(usart, atmel_usart1, pba, 4);
705
706static struct atmel_uart_data atmel_usart2_data = {
707 .use_dma_tx = 1,
708 .use_dma_rx = 1,
709};
710static struct resource atmel_usart2_resource[] = {
711 PBMEM(0xffe01400),
712 IRQ(8),
713};
714DEFINE_DEV_DATA(atmel_usart, 2);
715DEV_CLK(usart, atmel_usart2, pba, 5);
716
717static struct atmel_uart_data atmel_usart3_data = {
718 .use_dma_tx = 1,
719 .use_dma_rx = 1,
720};
721static struct resource atmel_usart3_resource[] = {
722 PBMEM(0xffe01800),
723 IRQ(9),
724};
725DEFINE_DEV_DATA(atmel_usart, 3);
726DEV_CLK(usart, atmel_usart3, pba, 6);
727
728static inline void configure_usart0_pins(void)
729{
730 select_peripheral(PA(8), PERIPH_B, 0); /* RXD */
731 select_peripheral(PA(9), PERIPH_B, 0); /* TXD */
732}
733
734static inline void configure_usart1_pins(void)
735{
736 select_peripheral(PA(17), PERIPH_A, 0); /* RXD */
737 select_peripheral(PA(18), PERIPH_A, 0); /* TXD */
738}
739
740static inline void configure_usart2_pins(void)
741{
742 select_peripheral(PB(26), PERIPH_B, 0); /* RXD */
743 select_peripheral(PB(27), PERIPH_B, 0); /* TXD */
744}
745
746static inline void configure_usart3_pins(void)
747{
748 select_peripheral(PB(18), PERIPH_B, 0); /* RXD */
749 select_peripheral(PB(17), PERIPH_B, 0); /* TXD */
750}
751
752static struct platform_device *__initdata at32_usarts[4];
753
754void __init at32_map_usart(unsigned int hw_id, unsigned int line)
755{
756 struct platform_device *pdev;
757
758 switch (hw_id) {
759 case 0:
760 pdev = &atmel_usart0_device;
761 configure_usart0_pins();
762 break;
763 case 1:
764 pdev = &atmel_usart1_device;
765 configure_usart1_pins();
766 break;
767 case 2:
768 pdev = &atmel_usart2_device;
769 configure_usart2_pins();
770 break;
771 case 3:
772 pdev = &atmel_usart3_device;
773 configure_usart3_pins();
774 break;
775 default:
776 return;
777 }
778
779 if (PXSEG(pdev->resource[0].start) == P4SEG) {
780 /* Addresses in the P4 segment are permanently mapped 1:1 */
781 struct atmel_uart_data *data = pdev->dev.platform_data;
782 data->regs = (void __iomem *)pdev->resource[0].start;
783 }
784
785 pdev->id = line;
786 at32_usarts[line] = pdev;
787}
788
789struct platform_device *__init at32_add_device_usart(unsigned int id)
790{
791 platform_device_register(at32_usarts[id]);
792 return at32_usarts[id];
793}
794
795struct platform_device *atmel_default_console_device;
796
797void __init at32_setup_serial_console(unsigned int usart_id)
798{
799 atmel_default_console_device = at32_usarts[usart_id];
800}
801
802/* --------------------------------------------------------------------
803 * Ethernet
804 * -------------------------------------------------------------------- */
805
806#ifdef CONFIG_CPU_AT32AP7000
807static struct eth_platform_data macb0_data;
808static struct resource macb0_resource[] = {
809 PBMEM(0xfff01800),
810 IRQ(25),
811};
812DEFINE_DEV_DATA(macb, 0);
813DEV_CLK(hclk, macb0, hsb, 8);
814DEV_CLK(pclk, macb0, pbb, 6);
815
816static struct eth_platform_data macb1_data;
817static struct resource macb1_resource[] = {
818 PBMEM(0xfff01c00),
819 IRQ(26),
820};
821DEFINE_DEV_DATA(macb, 1);
822DEV_CLK(hclk, macb1, hsb, 9);
823DEV_CLK(pclk, macb1, pbb, 7);
824
825struct platform_device *__init
826at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
827{
828 struct platform_device *pdev;
829
830 switch (id) {
831 case 0:
832 pdev = &macb0_device;
833
834 select_peripheral(PC(3), PERIPH_A, 0); /* TXD0 */
835 select_peripheral(PC(4), PERIPH_A, 0); /* TXD1 */
836 select_peripheral(PC(7), PERIPH_A, 0); /* TXEN */
837 select_peripheral(PC(8), PERIPH_A, 0); /* TXCK */
838 select_peripheral(PC(9), PERIPH_A, 0); /* RXD0 */
839 select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */
840 select_peripheral(PC(13), PERIPH_A, 0); /* RXER */
841 select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */
842 select_peripheral(PC(16), PERIPH_A, 0); /* MDC */
843 select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */
844
845 if (!data->is_rmii) {
846 select_peripheral(PC(0), PERIPH_A, 0); /* COL */
847 select_peripheral(PC(1), PERIPH_A, 0); /* CRS */
848 select_peripheral(PC(2), PERIPH_A, 0); /* TXER */
849 select_peripheral(PC(5), PERIPH_A, 0); /* TXD2 */
850 select_peripheral(PC(6), PERIPH_A, 0); /* TXD3 */
851 select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */
852 select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */
853 select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */
854 select_peripheral(PC(18), PERIPH_A, 0); /* SPD */
855 }
856 break;
857
858 case 1:
859 pdev = &macb1_device;
860
861 select_peripheral(PD(13), PERIPH_B, 0); /* TXD0 */
862 select_peripheral(PD(14), PERIPH_B, 0); /* TXD1 */
863 select_peripheral(PD(11), PERIPH_B, 0); /* TXEN */
864 select_peripheral(PD(12), PERIPH_B, 0); /* TXCK */
865 select_peripheral(PD(10), PERIPH_B, 0); /* RXD0 */
866 select_peripheral(PD(6), PERIPH_B, 0); /* RXD1 */
867 select_peripheral(PD(5), PERIPH_B, 0); /* RXER */
868 select_peripheral(PD(4), PERIPH_B, 0); /* RXDV */
869 select_peripheral(PD(3), PERIPH_B, 0); /* MDC */
870 select_peripheral(PD(2), PERIPH_B, 0); /* MDIO */
871
872 if (!data->is_rmii) {
873 select_peripheral(PC(19), PERIPH_B, 0); /* COL */
874 select_peripheral(PC(23), PERIPH_B, 0); /* CRS */
875 select_peripheral(PC(26), PERIPH_B, 0); /* TXER */
876 select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */
877 select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */
878 select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */
879 select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */
880 select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */
881 select_peripheral(PD(15), PERIPH_B, 0); /* SPD */
882 }
883 break;
884
885 default:
886 return NULL;
887 }
888
889 memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
890 platform_device_register(pdev);
891
892 return pdev;
893}
894#endif
895
896/* --------------------------------------------------------------------
897 * SPI
898 * -------------------------------------------------------------------- */
899static struct resource atmel_spi0_resource[] = {
900 PBMEM(0xffe00000),
901 IRQ(3),
902};
903DEFINE_DEV(atmel_spi, 0);
904DEV_CLK(spi_clk, atmel_spi0, pba, 0);
905
906static struct resource atmel_spi1_resource[] = {
907 PBMEM(0xffe00400),
908 IRQ(4),
909};
910DEFINE_DEV(atmel_spi, 1);
911DEV_CLK(spi_clk, atmel_spi1, pba, 1);
912
913static void __init
914at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,
915 unsigned int n, const u8 *pins)
916{
917 unsigned int pin, mode;
918
919 for (; n; n--, b++) {
920 b->bus_num = bus_num;
921 if (b->chip_select >= 4)
922 continue;
923 pin = (unsigned)b->controller_data;
924 if (!pin) {
925 pin = pins[b->chip_select];
926 b->controller_data = (void *)pin;
927 }
928 mode = AT32_GPIOF_OUTPUT;
929 if (!(b->mode & SPI_CS_HIGH))
930 mode |= AT32_GPIOF_HIGH;
931 at32_select_gpio(pin, mode);
932 }
933}
934
935struct platform_device *__init
936at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
937{
938 /*
939 * Manage the chipselects as GPIOs, normally using the same pins
940 * the SPI controller expects; but boards can use other pins.
941 */
942 static u8 __initdata spi0_pins[] =
943 { GPIO_PIN_PA(3), GPIO_PIN_PA(4),
944 GPIO_PIN_PA(5), GPIO_PIN_PA(20), };
945 static u8 __initdata spi1_pins[] =
946 { GPIO_PIN_PB(2), GPIO_PIN_PB(3),
947 GPIO_PIN_PB(4), GPIO_PIN_PA(27), };
948 struct platform_device *pdev;
949
950 switch (id) {
951 case 0:
952 pdev = &atmel_spi0_device;
953 select_peripheral(PA(0), PERIPH_A, 0); /* MISO */
954 select_peripheral(PA(1), PERIPH_A, 0); /* MOSI */
955 select_peripheral(PA(2), PERIPH_A, 0); /* SCK */
956 at32_spi_setup_slaves(0, b, n, spi0_pins);
957 break;
958
959 case 1:
960 pdev = &atmel_spi1_device;
961 select_peripheral(PB(0), PERIPH_B, 0); /* MISO */
962 select_peripheral(PB(1), PERIPH_B, 0); /* MOSI */
963 select_peripheral(PB(5), PERIPH_B, 0); /* SCK */
964 at32_spi_setup_slaves(1, b, n, spi1_pins);
965 break;
966
967 default:
968 return NULL;
969 }
970
971 spi_register_board_info(b, n);
972 platform_device_register(pdev);
973 return pdev;
974}
975
976/* --------------------------------------------------------------------
977 * TWI
978 * -------------------------------------------------------------------- */
979static struct resource atmel_twi0_resource[] __initdata = {
980 PBMEM(0xffe00800),
981 IRQ(5),
982};
983static struct clk atmel_twi0_pclk = {
984 .name = "twi_pclk",
985 .parent = &pba_clk,
986 .mode = pba_clk_mode,
987 .get_rate = pba_clk_get_rate,
988 .index = 2,
989};
990
991struct platform_device *__init at32_add_device_twi(unsigned int id)
992{
993 struct platform_device *pdev;
994
995 if (id != 0)
996 return NULL;
997
998 pdev = platform_device_alloc("atmel_twi", id);
999 if (!pdev)
1000 return NULL;
1001
1002 if (platform_device_add_resources(pdev, atmel_twi0_resource,
1003 ARRAY_SIZE(atmel_twi0_resource)))
1004 goto err_add_resources;
1005
1006 select_peripheral(PA(6), PERIPH_A, 0); /* SDA */
1007 select_peripheral(PA(7), PERIPH_A, 0); /* SDL */
1008
1009 atmel_twi0_pclk.dev = &pdev->dev;
1010
1011 platform_device_add(pdev);
1012 return pdev;
1013
1014err_add_resources:
1015 platform_device_put(pdev);
1016 return NULL;
1017}
1018
1019/* --------------------------------------------------------------------
1020 * MMC
1021 * -------------------------------------------------------------------- */
1022static struct resource atmel_mci0_resource[] __initdata = {
1023 PBMEM(0xfff02400),
1024 IRQ(28),
1025};
1026static struct clk atmel_mci0_pclk = {
1027 .name = "mci_clk",
1028 .parent = &pbb_clk,
1029 .mode = pbb_clk_mode,
1030 .get_rate = pbb_clk_get_rate,
1031 .index = 9,
1032};
1033
1034struct platform_device *__init at32_add_device_mci(unsigned int id)
1035{
1036 struct platform_device *pdev;
1037
1038 if (id != 0)
1039 return NULL;
1040
1041 pdev = platform_device_alloc("atmel_mci", id);
1042 if (!pdev)
1043 return NULL;
1044
1045 if (platform_device_add_resources(pdev, atmel_mci0_resource,
1046 ARRAY_SIZE(atmel_mci0_resource)))
1047 goto err_add_resources;
1048
1049 select_peripheral(PA(10), PERIPH_A, 0); /* CLK */
1050 select_peripheral(PA(11), PERIPH_A, 0); /* CMD */
1051 select_peripheral(PA(12), PERIPH_A, 0); /* DATA0 */
1052 select_peripheral(PA(13), PERIPH_A, 0); /* DATA1 */
1053 select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */
1054 select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */
1055
1056 atmel_mci0_pclk.dev = &pdev->dev;
1057
1058 platform_device_add(pdev);
1059 return pdev;
1060
1061err_add_resources:
1062 platform_device_put(pdev);
1063 return NULL;
1064}
1065
1066/* --------------------------------------------------------------------
1067 * LCDC
1068 * -------------------------------------------------------------------- */
1069#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1070static struct atmel_lcdfb_info atmel_lcdfb0_data;
1071static struct resource atmel_lcdfb0_resource[] = {
1072 {
1073 .start = 0xff000000,
1074 .end = 0xff000fff,
1075 .flags = IORESOURCE_MEM,
1076 },
1077 IRQ(1),
1078 {
1079 /* Placeholder for pre-allocated fb memory */
1080 .start = 0x00000000,
1081 .end = 0x00000000,
1082 .flags = 0,
1083 },
1084};
1085DEFINE_DEV_DATA(atmel_lcdfb, 0);
1086DEV_CLK(hck1, atmel_lcdfb0, hsb, 7);
1087static struct clk atmel_lcdfb0_pixclk = {
1088 .name = "lcdc_clk",
1089 .dev = &atmel_lcdfb0_device.dev,
1090 .mode = genclk_mode,
1091 .get_rate = genclk_get_rate,
1092 .set_rate = genclk_set_rate,
1093 .set_parent = genclk_set_parent,
1094 .index = 7,
1095};
1096
1097struct platform_device *__init
1098at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
1099 unsigned long fbmem_start, unsigned long fbmem_len)
1100{
1101 struct platform_device *pdev;
1102 struct atmel_lcdfb_info *info;
1103 struct fb_monspecs *monspecs;
1104 struct fb_videomode *modedb;
1105 unsigned int modedb_size;
1106
1107 /*
1108 * Do a deep copy of the fb data, monspecs and modedb. Make
1109 * sure all allocations are done before setting up the
1110 * portmux.
1111 */
1112 monspecs = kmemdup(data->default_monspecs,
1113 sizeof(struct fb_monspecs), GFP_KERNEL);
1114 if (!monspecs)
1115 return NULL;
1116
1117 modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len;
1118 modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL);
1119 if (!modedb)
1120 goto err_dup_modedb;
1121 monspecs->modedb = modedb;
1122
1123 switch (id) {
1124 case 0:
1125 pdev = &atmel_lcdfb0_device;
1126 select_peripheral(PC(19), PERIPH_A, 0); /* CC */
1127 select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC */
1128 select_peripheral(PC(21), PERIPH_A, 0); /* PCLK */
1129 select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC */
1130 select_peripheral(PC(23), PERIPH_A, 0); /* DVAL */
1131 select_peripheral(PC(24), PERIPH_A, 0); /* MODE */
1132 select_peripheral(PC(25), PERIPH_A, 0); /* PWR */
1133 select_peripheral(PC(26), PERIPH_A, 0); /* DATA0 */
1134 select_peripheral(PC(27), PERIPH_A, 0); /* DATA1 */
1135 select_peripheral(PC(28), PERIPH_A, 0); /* DATA2 */
1136 select_peripheral(PC(29), PERIPH_A, 0); /* DATA3 */
1137 select_peripheral(PC(30), PERIPH_A, 0); /* DATA4 */
1138 select_peripheral(PC(31), PERIPH_A, 0); /* DATA5 */
1139 select_peripheral(PD(0), PERIPH_A, 0); /* DATA6 */
1140 select_peripheral(PD(1), PERIPH_A, 0); /* DATA7 */
1141 select_peripheral(PD(2), PERIPH_A, 0); /* DATA8 */
1142 select_peripheral(PD(3), PERIPH_A, 0); /* DATA9 */
1143 select_peripheral(PD(4), PERIPH_A, 0); /* DATA10 */
1144 select_peripheral(PD(5), PERIPH_A, 0); /* DATA11 */
1145 select_peripheral(PD(6), PERIPH_A, 0); /* DATA12 */
1146 select_peripheral(PD(7), PERIPH_A, 0); /* DATA13 */
1147 select_peripheral(PD(8), PERIPH_A, 0); /* DATA14 */
1148 select_peripheral(PD(9), PERIPH_A, 0); /* DATA15 */
1149 select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */
1150 select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */
1151 select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */
1152 select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */
1153 select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */
1154 select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */
1155 select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
1156 select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
1157
1158 clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
1159 clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
1160 break;
1161
1162 default:
1163 goto err_invalid_id;
1164 }
1165
1166 if (fbmem_len) {
1167 pdev->resource[2].start = fbmem_start;
1168 pdev->resource[2].end = fbmem_start + fbmem_len - 1;
1169 pdev->resource[2].flags = IORESOURCE_MEM;
1170 }
1171
1172 info = pdev->dev.platform_data;
1173 memcpy(info, data, sizeof(struct atmel_lcdfb_info));
1174 info->default_monspecs = monspecs;
1175
1176 platform_device_register(pdev);
1177 return pdev;
1178
1179err_invalid_id:
1180 kfree(modedb);
1181err_dup_modedb:
1182 kfree(monspecs);
1183 return NULL;
1184}
1185#endif
1186
1187/* --------------------------------------------------------------------
1188 * SSC
1189 * -------------------------------------------------------------------- */
1190static struct resource ssc0_resource[] = {
1191 PBMEM(0xffe01c00),
1192 IRQ(10),
1193};
1194DEFINE_DEV(ssc, 0);
1195DEV_CLK(pclk, ssc0, pba, 7);
1196
1197static struct resource ssc1_resource[] = {
1198 PBMEM(0xffe02000),
1199 IRQ(11),
1200};
1201DEFINE_DEV(ssc, 1);
1202DEV_CLK(pclk, ssc1, pba, 8);
1203
1204static struct resource ssc2_resource[] = {
1205 PBMEM(0xffe02400),
1206 IRQ(12),
1207};
1208DEFINE_DEV(ssc, 2);
1209DEV_CLK(pclk, ssc2, pba, 9);
1210
1211struct platform_device *__init
1212at32_add_device_ssc(unsigned int id, unsigned int flags)
1213{
1214 struct platform_device *pdev;
1215
1216 switch (id) {
1217 case 0:
1218 pdev = &ssc0_device;
1219 if (flags & ATMEL_SSC_RF)
1220 select_peripheral(PA(21), PERIPH_A, 0); /* RF */
1221 if (flags & ATMEL_SSC_RK)
1222 select_peripheral(PA(22), PERIPH_A, 0); /* RK */
1223 if (flags & ATMEL_SSC_TK)
1224 select_peripheral(PA(23), PERIPH_A, 0); /* TK */
1225 if (flags & ATMEL_SSC_TF)
1226 select_peripheral(PA(24), PERIPH_A, 0); /* TF */
1227 if (flags & ATMEL_SSC_TD)
1228 select_peripheral(PA(25), PERIPH_A, 0); /* TD */
1229 if (flags & ATMEL_SSC_RD)
1230 select_peripheral(PA(26), PERIPH_A, 0); /* RD */
1231 break;
1232 case 1:
1233 pdev = &ssc1_device;
1234 if (flags & ATMEL_SSC_RF)
1235 select_peripheral(PA(0), PERIPH_B, 0); /* RF */
1236 if (flags & ATMEL_SSC_RK)
1237 select_peripheral(PA(1), PERIPH_B, 0); /* RK */
1238 if (flags & ATMEL_SSC_TK)
1239 select_peripheral(PA(2), PERIPH_B, 0); /* TK */
1240 if (flags & ATMEL_SSC_TF)
1241 select_peripheral(PA(3), PERIPH_B, 0); /* TF */
1242 if (flags & ATMEL_SSC_TD)
1243 select_peripheral(PA(4), PERIPH_B, 0); /* TD */
1244 if (flags & ATMEL_SSC_RD)
1245 select_peripheral(PA(5), PERIPH_B, 0); /* RD */
1246 break;
1247 case 2:
1248 pdev = &ssc2_device;
1249 if (flags & ATMEL_SSC_TD)
1250 select_peripheral(PB(13), PERIPH_A, 0); /* TD */
1251 if (flags & ATMEL_SSC_RD)
1252 select_peripheral(PB(14), PERIPH_A, 0); /* RD */
1253 if (flags & ATMEL_SSC_TK)
1254 select_peripheral(PB(15), PERIPH_A, 0); /* TK */
1255 if (flags & ATMEL_SSC_TF)
1256 select_peripheral(PB(16), PERIPH_A, 0); /* TF */
1257 if (flags & ATMEL_SSC_RF)
1258 select_peripheral(PB(17), PERIPH_A, 0); /* RF */
1259 if (flags & ATMEL_SSC_RK)
1260 select_peripheral(PB(18), PERIPH_A, 0); /* RK */
1261 break;
1262 default:
1263 return NULL;
1264 }
1265
1266 platform_device_register(pdev);
1267 return pdev;
1268}
1269
1270/* --------------------------------------------------------------------
1271 * USB Device Controller
1272 * -------------------------------------------------------------------- */
1273static struct resource usba0_resource[] __initdata = {
1274 {
1275 .start = 0xff300000,
1276 .end = 0xff3fffff,
1277 .flags = IORESOURCE_MEM,
1278 }, {
1279 .start = 0xfff03000,
1280 .end = 0xfff033ff,
1281 .flags = IORESOURCE_MEM,
1282 },
1283 IRQ(31),
1284};
1285static struct clk usba0_pclk = {
1286 .name = "pclk",
1287 .parent = &pbb_clk,
1288 .mode = pbb_clk_mode,
1289 .get_rate = pbb_clk_get_rate,
1290 .index = 12,
1291};
1292static struct clk usba0_hclk = {
1293 .name = "hclk",
1294 .parent = &hsb_clk,
1295 .mode = hsb_clk_mode,
1296 .get_rate = hsb_clk_get_rate,
1297 .index = 6,
1298};
1299
1300struct platform_device *__init
1301at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
1302{
1303 struct platform_device *pdev;
1304
1305 if (id != 0)
1306 return NULL;
1307
1308 pdev = platform_device_alloc("atmel_usba_udc", 0);
1309 if (!pdev)
1310 return NULL;
1311
1312 if (platform_device_add_resources(pdev, usba0_resource,
1313 ARRAY_SIZE(usba0_resource)))
1314 goto out_free_pdev;
1315
1316 if (data) {
1317 if (platform_device_add_data(pdev, data, sizeof(*data)))
1318 goto out_free_pdev;
1319
1320 if (data->vbus_pin != GPIO_PIN_NONE)
1321 at32_select_gpio(data->vbus_pin, 0);
1322 }
1323
1324 usba0_pclk.dev = &pdev->dev;
1325 usba0_hclk.dev = &pdev->dev;
1326
1327 platform_device_add(pdev);
1328
1329 return pdev;
1330
1331out_free_pdev:
1332 platform_device_put(pdev);
1333 return NULL;
1334}
1335
1336/* --------------------------------------------------------------------
1337 * IDE / CompactFlash
1338 * -------------------------------------------------------------------- */
1339#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001)
1340static struct resource at32_smc_cs4_resource[] __initdata = {
1341 {
1342 .start = 0x04000000,
1343 .end = 0x07ffffff,
1344 .flags = IORESOURCE_MEM,
1345 },
1346 IRQ(~0UL), /* Magic IRQ will be overridden */
1347};
1348static struct resource at32_smc_cs5_resource[] __initdata = {
1349 {
1350 .start = 0x20000000,
1351 .end = 0x23ffffff,
1352 .flags = IORESOURCE_MEM,
1353 },
1354 IRQ(~0UL), /* Magic IRQ will be overridden */
1355};
1356
1357static int __init at32_init_ide_or_cf(struct platform_device *pdev,
1358 unsigned int cs, unsigned int extint)
1359{
1360 static unsigned int extint_pin_map[4] __initdata = {
1361 GPIO_PIN_PB(25),
1362 GPIO_PIN_PB(26),
1363 GPIO_PIN_PB(27),
1364 GPIO_PIN_PB(28),
1365 };
1366 static bool common_pins_initialized __initdata = false;
1367 unsigned int extint_pin;
1368 int ret;
1369
1370 if (extint >= ARRAY_SIZE(extint_pin_map))
1371 return -EINVAL;
1372 extint_pin = extint_pin_map[extint];
1373
1374 switch (cs) {
1375 case 4:
1376 ret = platform_device_add_resources(pdev,
1377 at32_smc_cs4_resource,
1378 ARRAY_SIZE(at32_smc_cs4_resource));
1379 if (ret)
1380 return ret;
1381
1382 select_peripheral(PE(21), PERIPH_A, 0); /* NCS4 -> OE_N */
1383 set_ebi_sfr_bits(HMATRIX_BIT(CS4A));
1384 break;
1385 case 5:
1386 ret = platform_device_add_resources(pdev,
1387 at32_smc_cs5_resource,
1388 ARRAY_SIZE(at32_smc_cs5_resource));
1389 if (ret)
1390 return ret;
1391
1392 select_peripheral(PE(22), PERIPH_A, 0); /* NCS5 -> OE_N */
1393 set_ebi_sfr_bits(HMATRIX_BIT(CS5A));
1394 break;
1395 default:
1396 return -EINVAL;
1397 }
1398
1399 if (!common_pins_initialized) {
1400 select_peripheral(PE(19), PERIPH_A, 0); /* CFCE1 -> CS0_N */
1401 select_peripheral(PE(20), PERIPH_A, 0); /* CFCE2 -> CS1_N */
1402 select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW -> DIR */
1403 select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT <- IORDY */
1404 common_pins_initialized = true;
1405 }
1406
1407 at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
1408
1409 pdev->resource[1].start = EIM_IRQ_BASE + extint;
1410 pdev->resource[1].end = pdev->resource[1].start;
1411
1412 return 0;
1413}
1414
1415struct platform_device *__init
1416at32_add_device_ide(unsigned int id, unsigned int extint,
1417 struct ide_platform_data *data)
1418{
1419 struct platform_device *pdev;
1420
1421 pdev = platform_device_alloc("at32_ide", id);
1422 if (!pdev)
1423 goto fail;
1424
1425 if (platform_device_add_data(pdev, data,
1426 sizeof(struct ide_platform_data)))
1427 goto fail;
1428
1429 if (at32_init_ide_or_cf(pdev, data->cs, extint))
1430 goto fail;
1431
1432 platform_device_add(pdev);
1433 return pdev;
1434
1435fail:
1436 platform_device_put(pdev);
1437 return NULL;
1438}
1439
1440struct platform_device *__init
1441at32_add_device_cf(unsigned int id, unsigned int extint,
1442 struct cf_platform_data *data)
1443{
1444 struct platform_device *pdev;
1445
1446 pdev = platform_device_alloc("at32_cf", id);
1447 if (!pdev)
1448 goto fail;
1449
1450 if (platform_device_add_data(pdev, data,
1451 sizeof(struct cf_platform_data)))
1452 goto fail;
1453
1454 if (at32_init_ide_or_cf(pdev, data->cs, extint))
1455 goto fail;
1456
1457 if (data->detect_pin != GPIO_PIN_NONE)
1458 at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
1459 if (data->reset_pin != GPIO_PIN_NONE)
1460 at32_select_gpio(data->reset_pin, 0);
1461 if (data->vcc_pin != GPIO_PIN_NONE)
1462 at32_select_gpio(data->vcc_pin, 0);
1463 /* READY is used as extint, so we can't select it as gpio */
1464
1465 platform_device_add(pdev);
1466 return pdev;
1467
1468fail:
1469 platform_device_put(pdev);
1470 return NULL;
1471}
1472#endif
1473
1474/* --------------------------------------------------------------------
1475 * AC97C
1476 * -------------------------------------------------------------------- */
1477static struct resource atmel_ac97c0_resource[] __initdata = {
1478 PBMEM(0xfff02800),
1479 IRQ(29),
1480};
1481static struct clk atmel_ac97c0_pclk = {
1482 .name = "pclk",
1483 .parent = &pbb_clk,
1484 .mode = pbb_clk_mode,
1485 .get_rate = pbb_clk_get_rate,
1486 .index = 10,
1487};
1488
1489struct platform_device *__init at32_add_device_ac97c(unsigned int id)
1490{
1491 struct platform_device *pdev;
1492
1493 if (id != 0)
1494 return NULL;
1495
1496 pdev = platform_device_alloc("atmel_ac97c", id);
1497 if (!pdev)
1498 return NULL;
1499
1500 if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
1501 ARRAY_SIZE(atmel_ac97c0_resource)))
1502 goto err_add_resources;
1503
1504 select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */
1505 select_peripheral(PB(21), PERIPH_B, 0); /* SDO */
1506 select_peripheral(PB(22), PERIPH_B, 0); /* SDI */
1507 select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */
1508
1509 atmel_ac97c0_pclk.dev = &pdev->dev;
1510
1511 platform_device_add(pdev);
1512 return pdev;
1513
1514err_add_resources:
1515 platform_device_put(pdev);
1516 return NULL;
1517}
1518
1519/* --------------------------------------------------------------------
1520 * ABDAC
1521 * -------------------------------------------------------------------- */
1522static struct resource abdac0_resource[] __initdata = {
1523 PBMEM(0xfff02000),
1524 IRQ(27),
1525};
1526static struct clk abdac0_pclk = {
1527 .name = "pclk",
1528 .parent = &pbb_clk,
1529 .mode = pbb_clk_mode,
1530 .get_rate = pbb_clk_get_rate,
1531 .index = 8,
1532};
1533static struct clk abdac0_sample_clk = {
1534 .name = "sample_clk",
1535 .mode = genclk_mode,
1536 .get_rate = genclk_get_rate,
1537 .set_rate = genclk_set_rate,
1538 .set_parent = genclk_set_parent,
1539 .index = 6,
1540};
1541
1542struct platform_device *__init at32_add_device_abdac(unsigned int id)
1543{
1544 struct platform_device *pdev;
1545
1546 if (id != 0)
1547 return NULL;
1548
1549 pdev = platform_device_alloc("abdac", id);
1550 if (!pdev)
1551 return NULL;
1552
1553 if (platform_device_add_resources(pdev, abdac0_resource,
1554 ARRAY_SIZE(abdac0_resource)))
1555 goto err_add_resources;
1556
1557 select_peripheral(PB(20), PERIPH_A, 0); /* DATA1 */
1558 select_peripheral(PB(21), PERIPH_A, 0); /* DATA0 */
1559 select_peripheral(PB(22), PERIPH_A, 0); /* DATAN1 */
1560 select_peripheral(PB(23), PERIPH_A, 0); /* DATAN0 */
1561
1562 abdac0_pclk.dev = &pdev->dev;
1563 abdac0_sample_clk.dev = &pdev->dev;
1564
1565 platform_device_add(pdev);
1566 return pdev;
1567
1568err_add_resources:
1569 platform_device_put(pdev);
1570 return NULL;
1571}
1572
1573/* --------------------------------------------------------------------
1574 * GCLK
1575 * -------------------------------------------------------------------- */
1576static struct clk gclk0 = {
1577 .name = "gclk0",
1578 .mode = genclk_mode,
1579 .get_rate = genclk_get_rate,
1580 .set_rate = genclk_set_rate,
1581 .set_parent = genclk_set_parent,
1582 .index = 0,
1583};
1584static struct clk gclk1 = {
1585 .name = "gclk1",
1586 .mode = genclk_mode,
1587 .get_rate = genclk_get_rate,
1588 .set_rate = genclk_set_rate,
1589 .set_parent = genclk_set_parent,
1590 .index = 1,
1591};
1592static struct clk gclk2 = {
1593 .name = "gclk2",
1594 .mode = genclk_mode,
1595 .get_rate = genclk_get_rate,
1596 .set_rate = genclk_set_rate,
1597 .set_parent = genclk_set_parent,
1598 .index = 2,
1599};
1600static struct clk gclk3 = {
1601 .name = "gclk3",
1602 .mode = genclk_mode,
1603 .get_rate = genclk_get_rate,
1604 .set_rate = genclk_set_rate,
1605 .set_parent = genclk_set_parent,
1606 .index = 3,
1607};
1608static struct clk gclk4 = {
1609 .name = "gclk4",
1610 .mode = genclk_mode,
1611 .get_rate = genclk_get_rate,
1612 .set_rate = genclk_set_rate,
1613 .set_parent = genclk_set_parent,
1614 .index = 4,
1615};
1616
1617struct clk *at32_clock_list[] = {
1618 &osc32k,
1619 &osc0,
1620 &osc1,
1621 &pll0,
1622 &pll1,
1623 &cpu_clk,
1624 &hsb_clk,
1625 &pba_clk,
1626 &pbb_clk,
1627 &at32_pm_pclk,
1628 &at32_intc0_pclk,
1629 &hmatrix_clk,
1630 &ebi_clk,
1631 &hramc_clk,
1632 &smc0_pclk,
1633 &smc0_mck,
1634 &pdc_hclk,
1635 &pdc_pclk,
1636 &dmaca0_hclk,
1637 &pico_clk,
1638 &pio0_mck,
1639 &pio1_mck,
1640 &pio2_mck,
1641 &pio3_mck,
1642 &pio4_mck,
1643 &at32_systc0_pclk,
1644 &atmel_usart0_usart,
1645 &atmel_usart1_usart,
1646 &atmel_usart2_usart,
1647 &atmel_usart3_usart,
1648#if defined(CONFIG_CPU_AT32AP7000)
1649 &macb0_hclk,
1650 &macb0_pclk,
1651 &macb1_hclk,
1652 &macb1_pclk,
1653#endif
1654 &atmel_spi0_spi_clk,
1655 &atmel_spi1_spi_clk,
1656 &atmel_twi0_pclk,
1657 &atmel_mci0_pclk,
1658#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1659 &atmel_lcdfb0_hck1,
1660 &atmel_lcdfb0_pixclk,
1661#endif
1662 &ssc0_pclk,
1663 &ssc1_pclk,
1664 &ssc2_pclk,
1665 &usba0_hclk,
1666 &usba0_pclk,
1667 &atmel_ac97c0_pclk,
1668 &abdac0_pclk,
1669 &abdac0_sample_clk,
1670 &gclk0,
1671 &gclk1,
1672 &gclk2,
1673 &gclk3,
1674 &gclk4,
1675};
1676unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
1677
1678void __init at32_portmux_init(void)
1679{
1680 at32_init_pio(&pio0_device);
1681 at32_init_pio(&pio1_device);
1682 at32_init_pio(&pio2_device);
1683 at32_init_pio(&pio3_device);
1684 at32_init_pio(&pio4_device);
1685}
1686
1687void __init at32_clock_init(void)
1688{
1689 u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
1690 int i;
1691
1692 if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) {
1693 main_clock = &pll0;
1694 cpu_clk.parent = &pll0;
1695 } else {
1696 main_clock = &osc0;
1697 cpu_clk.parent = &osc0;
1698 }
1699
1700 if (pm_readl(PLL0) & PM_BIT(PLLOSC))
1701 pll0.parent = &osc1;
1702 if (pm_readl(PLL1) & PM_BIT(PLLOSC))
1703 pll1.parent = &osc1;
1704
1705 genclk_init_parent(&gclk0);
1706 genclk_init_parent(&gclk1);
1707 genclk_init_parent(&gclk2);
1708 genclk_init_parent(&gclk3);
1709 genclk_init_parent(&gclk4);
1710#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1711 genclk_init_parent(&atmel_lcdfb0_pixclk);
1712#endif
1713 genclk_init_parent(&abdac0_sample_clk);
1714
1715 /*
1716 * Turn on all clocks that have at least one user already, and
1717 * turn off everything else. We only do this for module
1718 * clocks, and even though it isn't particularly pretty to
1719 * check the address of the mode function, it should do the
1720 * trick...
1721 */
1722 for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
1723 struct clk *clk = at32_clock_list[i];
1724
1725 if (clk->users == 0)
1726 continue;
1727
1728 if (clk->mode == &cpu_clk_mode)
1729 cpu_mask |= 1 << clk->index;
1730 else if (clk->mode == &hsb_clk_mode)
1731 hsb_mask |= 1 << clk->index;
1732 else if (clk->mode == &pba_clk_mode)
1733 pba_mask |= 1 << clk->index;
1734 else if (clk->mode == &pbb_clk_mode)
1735 pbb_mask |= 1 << clk->index;
1736 }
1737
1738 pm_writel(CPU_MASK, cpu_mask);
1739 pm_writel(HSB_MASK, hsb_mask);
1740 pm_writel(PBA_MASK, pba_mask);
1741 pm_writel(PBB_MASK, pbb_mask);
1742}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 04:39:22 -0500