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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 11:40:02 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 11:40:02 -0500
commit7556afa0e0e436cad4f560ee83e5fbd5dac9359a (patch)
treec1500918b4b7c8b760feab1c8eeb8a815d2135ca /arch/avr32/mach-at32ap/at32ap700x.c
parente07dd2ad305f6b29b47d713600aa8b722ef2a9f7 (diff)
parentd6c49a7a78fc841418bbd58bda504076f80ec51d (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: [AVR32] extint: Set initial irq type to low level [AVR32] extint: change set_irq_type() handling [AVR32] NMI debugging [AVR32] constify function pointer tables [AVR32] ATNGW100: Update defconfig [AVR32] ATSTK1002: Update defconfig [AVR32] Kconfig: Choose daughterboard instead of CPU [AVR32] Add support for ATSTK1003 and ATSTK1004 [AVR32] Clean up external DAC setup code [AVR32] ATSTK1000: Move gpio-leds setup to setup.c [AVR32] Add support for AT32AP7001 and AT32AP7002 [AVR32] Provide more CPU information in /proc/cpuinfo and dmesg [AVR32] Oprofile support [AVR32] Include instrumentation menu Disable VGA text console for AVR32 architecture [AVR32] Enable debugging only when needed ptrace: Call arch_ptrace_attach() when request=PTRACE_TRACEME [AVR32] Remove redundant try_to_freeze() call from do_signal() [AVR32] Drop GFP_COMP for DMA memory allocations
Diffstat (limited to 'arch/avr32/mach-at32ap/at32ap700x.c')
-rw-r--r--arch/avr32/mach-at32ap/at32ap700x.c1743
1 files changed, 1743 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..14e61f05e1f6
--- /dev/null
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -0,0 +1,1743 @@
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#include <asm/irq.h>
17
18#include <asm/arch/at32ap700x.h>
19#include <asm/arch/board.h>
20#include <asm/arch/portmux.h>
21
22#include <video/atmel_lcdc.h>
23
24#include "clock.h"
25#include "hmatrix.h"
26#include "pio.h"
27#include "pm.h"
28
29
30#define PBMEM(base) \
31 { \
32 .start = base, \
33 .end = base + 0x3ff, \
34 .flags = IORESOURCE_MEM, \
35 }
36#define IRQ(num) \
37 { \
38 .start = num, \
39 .end = num, \
40 .flags = IORESOURCE_IRQ, \
41 }
42#define NAMED_IRQ(num, _name) \
43 { \
44 .start = num, \
45 .end = num, \
46 .name = _name, \
47 .flags = IORESOURCE_IRQ, \
48 }
49
50/* REVISIT these assume *every* device supports DMA, but several
51 * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
52 */
53#define DEFINE_DEV(_name, _id) \
54static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \
55static struct platform_device _name##_id##_device = { \
56 .name = #_name, \
57 .id = _id, \
58 .dev = { \
59 .dma_mask = &_name##_id##_dma_mask, \
60 .coherent_dma_mask = DMA_32BIT_MASK, \
61 }, \
62 .resource = _name##_id##_resource, \
63 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
64}
65#define DEFINE_DEV_DATA(_name, _id) \
66static u64 _name##_id##_dma_mask = DMA_32BIT_MASK; \
67static struct platform_device _name##_id##_device = { \
68 .name = #_name, \
69 .id = _id, \
70 .dev = { \
71 .dma_mask = &_name##_id##_dma_mask, \
72 .platform_data = &_name##_id##_data, \
73 .coherent_dma_mask = DMA_32BIT_MASK, \
74 }, \
75 .resource = _name##_id##_resource, \
76 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
77}
78
79#define select_peripheral(pin, periph, flags) \
80 at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags)
81
82#define DEV_CLK(_name, devname, bus, _index) \
83static struct clk devname##_##_name = { \
84 .name = #_name, \
85 .dev = &devname##_device.dev, \
86 .parent = &bus##_clk, \
87 .mode = bus##_clk_mode, \
88 .get_rate = bus##_clk_get_rate, \
89 .index = _index, \
90}
91
92static DEFINE_SPINLOCK(pm_lock);
93
94unsigned long at32ap7000_osc_rates[3] = {
95 [0] = 32768,
96 /* FIXME: these are ATSTK1002-specific */
97 [1] = 20000000,
98 [2] = 12000000,
99};
100
101static unsigned long osc_get_rate(struct clk *clk)
102{
103 return at32ap7000_osc_rates[clk->index];
104}
105
106static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
107{
108 unsigned long div, mul, rate;
109
110 if (!(control & PM_BIT(PLLEN)))
111 return 0;
112
113 div = PM_BFEXT(PLLDIV, control) + 1;
114 mul = PM_BFEXT(PLLMUL, control) + 1;
115
116 rate = clk->parent->get_rate(clk->parent);
117 rate = (rate + div / 2) / div;
118 rate *= mul;
119
120 return rate;
121}
122
123static unsigned long pll0_get_rate(struct clk *clk)
124{
125 u32 control;
126
127 control = pm_readl(PLL0);
128
129 return pll_get_rate(clk, control);
130}
131
132static unsigned long pll1_get_rate(struct clk *clk)
133{
134 u32 control;
135
136 control = pm_readl(PLL1);
137
138 return pll_get_rate(clk, control);
139}
140
141/*
142 * The AT32AP7000 has five primary clock sources: One 32kHz
143 * oscillator, two crystal oscillators and two PLLs.
144 */
145static struct clk osc32k = {
146 .name = "osc32k",
147 .get_rate = osc_get_rate,
148 .users = 1,
149 .index = 0,
150};
151static struct clk osc0 = {
152 .name = "osc0",
153 .get_rate = osc_get_rate,
154 .users = 1,
155 .index = 1,
156};
157static struct clk osc1 = {
158 .name = "osc1",
159 .get_rate = osc_get_rate,
160 .index = 2,
161};
162static struct clk pll0 = {
163 .name = "pll0",
164 .get_rate = pll0_get_rate,
165 .parent = &osc0,
166};
167static struct clk pll1 = {
168 .name = "pll1",
169 .get_rate = pll1_get_rate,
170 .parent = &osc0,
171};
172
173/*
174 * The main clock can be either osc0 or pll0. The boot loader may
175 * have chosen one for us, so we don't really know which one until we
176 * have a look at the SM.
177 */
178static struct clk *main_clock;
179
180/*
181 * Synchronous clocks are generated from the main clock. The clocks
182 * must satisfy the constraint
183 * fCPU >= fHSB >= fPB
184 * i.e. each clock must not be faster than its parent.
185 */
186static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
187{
188 return main_clock->get_rate(main_clock) >> shift;
189};
190
191static void cpu_clk_mode(struct clk *clk, int enabled)
192{
193 unsigned long flags;
194 u32 mask;
195
196 spin_lock_irqsave(&pm_lock, flags);
197 mask = pm_readl(CPU_MASK);
198 if (enabled)
199 mask |= 1 << clk->index;
200 else
201 mask &= ~(1 << clk->index);
202 pm_writel(CPU_MASK, mask);
203 spin_unlock_irqrestore(&pm_lock, flags);
204}
205
206static unsigned long cpu_clk_get_rate(struct clk *clk)
207{
208 unsigned long cksel, shift = 0;
209
210 cksel = pm_readl(CKSEL);
211 if (cksel & PM_BIT(CPUDIV))
212 shift = PM_BFEXT(CPUSEL, cksel) + 1;
213
214 return bus_clk_get_rate(clk, shift);
215}
216
217static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply)
218{
219 u32 control;
220 unsigned long parent_rate, child_div, actual_rate, div;
221
222 parent_rate = clk->parent->get_rate(clk->parent);
223 control = pm_readl(CKSEL);
224
225 if (control & PM_BIT(HSBDIV))
226 child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1);
227 else
228 child_div = 1;
229
230 if (rate > 3 * (parent_rate / 4) || child_div == 1) {
231 actual_rate = parent_rate;
232 control &= ~PM_BIT(CPUDIV);
233 } else {
234 unsigned int cpusel;
235 div = (parent_rate + rate / 2) / rate;
236 if (div > child_div)
237 div = child_div;
238 cpusel = (div > 1) ? (fls(div) - 2) : 0;
239 control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control);
240 actual_rate = parent_rate / (1 << (cpusel + 1));
241 }
242
243 pr_debug("clk %s: new rate %lu (actual rate %lu)\n",
244 clk->name, rate, actual_rate);
245
246 if (apply)
247 pm_writel(CKSEL, control);
248
249 return actual_rate;
250}
251
252static void hsb_clk_mode(struct clk *clk, int enabled)
253{
254 unsigned long flags;
255 u32 mask;
256
257 spin_lock_irqsave(&pm_lock, flags);
258 mask = pm_readl(HSB_MASK);
259 if (enabled)
260 mask |= 1 << clk->index;
261 else
262 mask &= ~(1 << clk->index);
263 pm_writel(HSB_MASK, mask);
264 spin_unlock_irqrestore(&pm_lock, flags);
265}
266
267static unsigned long hsb_clk_get_rate(struct clk *clk)
268{
269 unsigned long cksel, shift = 0;
270
271 cksel = pm_readl(CKSEL);
272 if (cksel & PM_BIT(HSBDIV))
273 shift = PM_BFEXT(HSBSEL, cksel) + 1;
274
275 return bus_clk_get_rate(clk, shift);
276}
277
278static void pba_clk_mode(struct clk *clk, int enabled)
279{
280 unsigned long flags;
281 u32 mask;
282
283 spin_lock_irqsave(&pm_lock, flags);
284 mask = pm_readl(PBA_MASK);
285 if (enabled)
286 mask |= 1 << clk->index;
287 else
288 mask &= ~(1 << clk->index);
289 pm_writel(PBA_MASK, mask);
290 spin_unlock_irqrestore(&pm_lock, flags);
291}
292
293static unsigned long pba_clk_get_rate(struct clk *clk)
294{
295 unsigned long cksel, shift = 0;
296
297 cksel = pm_readl(CKSEL);
298 if (cksel & PM_BIT(PBADIV))
299 shift = PM_BFEXT(PBASEL, cksel) + 1;
300
301 return bus_clk_get_rate(clk, shift);
302}
303
304static void pbb_clk_mode(struct clk *clk, int enabled)
305{
306 unsigned long flags;
307 u32 mask;
308
309 spin_lock_irqsave(&pm_lock, flags);
310 mask = pm_readl(PBB_MASK);
311 if (enabled)
312 mask |= 1 << clk->index;
313 else
314 mask &= ~(1 << clk->index);
315 pm_writel(PBB_MASK, mask);
316 spin_unlock_irqrestore(&pm_lock, flags);
317}
318
319static unsigned long pbb_clk_get_rate(struct clk *clk)
320{
321 unsigned long cksel, shift = 0;
322
323 cksel = pm_readl(CKSEL);
324 if (cksel & PM_BIT(PBBDIV))
325 shift = PM_BFEXT(PBBSEL, cksel) + 1;
326
327 return bus_clk_get_rate(clk, shift);
328}
329
330static struct clk cpu_clk = {
331 .name = "cpu",
332 .get_rate = cpu_clk_get_rate,
333 .set_rate = cpu_clk_set_rate,
334 .users = 1,
335};
336static struct clk hsb_clk = {
337 .name = "hsb",
338 .parent = &cpu_clk,
339 .get_rate = hsb_clk_get_rate,
340};
341static struct clk pba_clk = {
342 .name = "pba",
343 .parent = &hsb_clk,
344 .mode = hsb_clk_mode,
345 .get_rate = pba_clk_get_rate,
346 .index = 1,
347};
348static struct clk pbb_clk = {
349 .name = "pbb",
350 .parent = &hsb_clk,
351 .mode = hsb_clk_mode,
352 .get_rate = pbb_clk_get_rate,
353 .users = 1,
354 .index = 2,
355};
356
357/* --------------------------------------------------------------------
358 * Generic Clock operations
359 * -------------------------------------------------------------------- */
360
361static void genclk_mode(struct clk *clk, int enabled)
362{
363 u32 control;
364
365 control = pm_readl(GCCTRL(clk->index));
366 if (enabled)
367 control |= PM_BIT(CEN);
368 else
369 control &= ~PM_BIT(CEN);
370 pm_writel(GCCTRL(clk->index), control);
371}
372
373static unsigned long genclk_get_rate(struct clk *clk)
374{
375 u32 control;
376 unsigned long div = 1;
377
378 control = pm_readl(GCCTRL(clk->index));
379 if (control & PM_BIT(DIVEN))
380 div = 2 * (PM_BFEXT(DIV, control) + 1);
381
382 return clk->parent->get_rate(clk->parent) / div;
383}
384
385static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
386{
387 u32 control;
388 unsigned long parent_rate, actual_rate, div;
389
390 parent_rate = clk->parent->get_rate(clk->parent);
391 control = pm_readl(GCCTRL(clk->index));
392
393 if (rate > 3 * parent_rate / 4) {
394 actual_rate = parent_rate;
395 control &= ~PM_BIT(DIVEN);
396 } else {
397 div = (parent_rate + rate) / (2 * rate) - 1;
398 control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN);
399 actual_rate = parent_rate / (2 * (div + 1));
400 }
401
402 dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n",
403 clk->name, rate, actual_rate);
404
405 if (apply)
406 pm_writel(GCCTRL(clk->index), control);
407
408 return actual_rate;
409}
410
411int genclk_set_parent(struct clk *clk, struct clk *parent)
412{
413 u32 control;
414
415 dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n",
416 clk->name, parent->name, clk->parent->name);
417
418 control = pm_readl(GCCTRL(clk->index));
419
420 if (parent == &osc1 || parent == &pll1)
421 control |= PM_BIT(OSCSEL);
422 else if (parent == &osc0 || parent == &pll0)
423 control &= ~PM_BIT(OSCSEL);
424 else
425 return -EINVAL;
426
427 if (parent == &pll0 || parent == &pll1)
428 control |= PM_BIT(PLLSEL);
429 else
430 control &= ~PM_BIT(PLLSEL);
431
432 pm_writel(GCCTRL(clk->index), control);
433 clk->parent = parent;
434
435 return 0;
436}
437
438static void __init genclk_init_parent(struct clk *clk)
439{
440 u32 control;
441 struct clk *parent;
442
443 BUG_ON(clk->index > 7);
444
445 control = pm_readl(GCCTRL(clk->index));
446 if (control & PM_BIT(OSCSEL))
447 parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1;
448 else
449 parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0;
450
451 clk->parent = parent;
452}
453
454/* --------------------------------------------------------------------
455 * System peripherals
456 * -------------------------------------------------------------------- */
457static struct resource at32_pm0_resource[] = {
458 {
459 .start = 0xfff00000,
460 .end = 0xfff0007f,
461 .flags = IORESOURCE_MEM,
462 },
463 IRQ(20),
464};
465
466static struct resource at32ap700x_rtc0_resource[] = {
467 {
468 .start = 0xfff00080,
469 .end = 0xfff000af,
470 .flags = IORESOURCE_MEM,
471 },
472 IRQ(21),
473};
474
475static struct resource at32_wdt0_resource[] = {
476 {
477 .start = 0xfff000b0,
478 .end = 0xfff000cf,
479 .flags = IORESOURCE_MEM,
480 },
481};
482
483static struct resource at32_eic0_resource[] = {
484 {
485 .start = 0xfff00100,
486 .end = 0xfff0013f,
487 .flags = IORESOURCE_MEM,
488 },
489 IRQ(19),
490};
491
492DEFINE_DEV(at32_pm, 0);
493DEFINE_DEV(at32ap700x_rtc, 0);
494DEFINE_DEV(at32_wdt, 0);
495DEFINE_DEV(at32_eic, 0);
496
497/*
498 * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this
499 * is always running.
500 */
501static struct clk at32_pm_pclk = {
502 .name = "pclk",
503 .dev = &at32_pm0_device.dev,
504 .parent = &pbb_clk,
505 .mode = pbb_clk_mode,
506 .get_rate = pbb_clk_get_rate,
507 .users = 1,
508 .index = 0,
509};
510
511static struct resource intc0_resource[] = {
512 PBMEM(0xfff00400),
513};
514struct platform_device at32_intc0_device = {
515 .name = "intc",
516 .id = 0,
517 .resource = intc0_resource,
518 .num_resources = ARRAY_SIZE(intc0_resource),
519};
520DEV_CLK(pclk, at32_intc0, pbb, 1);
521
522static struct clk ebi_clk = {
523 .name = "ebi",
524 .parent = &hsb_clk,
525 .mode = hsb_clk_mode,
526 .get_rate = hsb_clk_get_rate,
527 .users = 1,
528};
529static struct clk hramc_clk = {
530 .name = "hramc",
531 .parent = &hsb_clk,
532 .mode = hsb_clk_mode,
533 .get_rate = hsb_clk_get_rate,
534 .users = 1,
535 .index = 3,
536};
537
538static struct resource smc0_resource[] = {
539 PBMEM(0xfff03400),
540};
541DEFINE_DEV(smc, 0);
542DEV_CLK(pclk, smc0, pbb, 13);
543DEV_CLK(mck, smc0, hsb, 0);
544
545static struct platform_device pdc_device = {
546 .name = "pdc",
547 .id = 0,
548};
549DEV_CLK(hclk, pdc, hsb, 4);
550DEV_CLK(pclk, pdc, pba, 16);
551
552static struct clk pico_clk = {
553 .name = "pico",
554 .parent = &cpu_clk,
555 .mode = cpu_clk_mode,
556 .get_rate = cpu_clk_get_rate,
557 .users = 1,
558};
559
560static struct resource dmaca0_resource[] = {
561 {
562 .start = 0xff200000,
563 .end = 0xff20ffff,
564 .flags = IORESOURCE_MEM,
565 },
566 IRQ(2),
567};
568DEFINE_DEV(dmaca, 0);
569DEV_CLK(hclk, dmaca0, hsb, 10);
570
571/* --------------------------------------------------------------------
572 * HMATRIX
573 * -------------------------------------------------------------------- */
574
575static struct clk hmatrix_clk = {
576 .name = "hmatrix_clk",
577 .parent = &pbb_clk,
578 .mode = pbb_clk_mode,
579 .get_rate = pbb_clk_get_rate,
580 .index = 2,
581 .users = 1,
582};
583#define HMATRIX_BASE ((void __iomem *)0xfff00800)
584
585#define hmatrix_readl(reg) \
586 __raw_readl((HMATRIX_BASE) + HMATRIX_##reg)
587#define hmatrix_writel(reg,value) \
588 __raw_writel((value), (HMATRIX_BASE) + HMATRIX_##reg)
589
590/*
591 * Set bits in the HMATRIX Special Function Register (SFR) used by the
592 * External Bus Interface (EBI). This can be used to enable special
593 * features like CompactFlash support, NAND Flash support, etc. on
594 * certain chipselects.
595 */
596static inline void set_ebi_sfr_bits(u32 mask)
597{
598 u32 sfr;
599
600 clk_enable(&hmatrix_clk);
601 sfr = hmatrix_readl(SFR4);
602 sfr |= mask;
603 hmatrix_writel(SFR4, sfr);
604 clk_disable(&hmatrix_clk);
605}
606
607/* --------------------------------------------------------------------
608 * System Timer/Counter (TC)
609 * -------------------------------------------------------------------- */
610static struct resource at32_systc0_resource[] = {
611 PBMEM(0xfff00c00),
612 IRQ(22),
613};
614struct platform_device at32_systc0_device = {
615 .name = "systc",
616 .id = 0,
617 .resource = at32_systc0_resource,
618 .num_resources = ARRAY_SIZE(at32_systc0_resource),
619};
620DEV_CLK(pclk, at32_systc0, pbb, 3);
621
622/* --------------------------------------------------------------------
623 * PIO
624 * -------------------------------------------------------------------- */
625
626static struct resource pio0_resource[] = {
627 PBMEM(0xffe02800),
628 IRQ(13),
629};
630DEFINE_DEV(pio, 0);
631DEV_CLK(mck, pio0, pba, 10);
632
633static struct resource pio1_resource[] = {
634 PBMEM(0xffe02c00),
635 IRQ(14),
636};
637DEFINE_DEV(pio, 1);
638DEV_CLK(mck, pio1, pba, 11);
639
640static struct resource pio2_resource[] = {
641 PBMEM(0xffe03000),
642 IRQ(15),
643};
644DEFINE_DEV(pio, 2);
645DEV_CLK(mck, pio2, pba, 12);
646
647static struct resource pio3_resource[] = {
648 PBMEM(0xffe03400),
649 IRQ(16),
650};
651DEFINE_DEV(pio, 3);
652DEV_CLK(mck, pio3, pba, 13);
653
654static struct resource pio4_resource[] = {
655 PBMEM(0xffe03800),
656 IRQ(17),
657};
658DEFINE_DEV(pio, 4);
659DEV_CLK(mck, pio4, pba, 14);
660
661void __init at32_add_system_devices(void)
662{
663 platform_device_register(&at32_pm0_device);
664 platform_device_register(&at32_intc0_device);
665 platform_device_register(&at32ap700x_rtc0_device);
666 platform_device_register(&at32_wdt0_device);
667 platform_device_register(&at32_eic0_device);
668 platform_device_register(&smc0_device);
669 platform_device_register(&pdc_device);
670 platform_device_register(&dmaca0_device);
671
672 platform_device_register(&at32_systc0_device);
673
674 platform_device_register(&pio0_device);
675 platform_device_register(&pio1_device);
676 platform_device_register(&pio2_device);
677 platform_device_register(&pio3_device);
678 platform_device_register(&pio4_device);
679}
680
681/* --------------------------------------------------------------------
682 * USART
683 * -------------------------------------------------------------------- */
684
685static struct atmel_uart_data atmel_usart0_data = {
686 .use_dma_tx = 1,
687 .use_dma_rx = 1,
688};
689static struct resource atmel_usart0_resource[] = {
690 PBMEM(0xffe00c00),
691 IRQ(6),
692};
693DEFINE_DEV_DATA(atmel_usart, 0);
694DEV_CLK(usart, atmel_usart0, pba, 3);
695
696static struct atmel_uart_data atmel_usart1_data = {
697 .use_dma_tx = 1,
698 .use_dma_rx = 1,
699};
700static struct resource atmel_usart1_resource[] = {
701 PBMEM(0xffe01000),
702 IRQ(7),
703};
704DEFINE_DEV_DATA(atmel_usart, 1);
705DEV_CLK(usart, atmel_usart1, pba, 4);
706
707static struct atmel_uart_data atmel_usart2_data = {
708 .use_dma_tx = 1,
709 .use_dma_rx = 1,
710};
711static struct resource atmel_usart2_resource[] = {
712 PBMEM(0xffe01400),
713 IRQ(8),
714};
715DEFINE_DEV_DATA(atmel_usart, 2);
716DEV_CLK(usart, atmel_usart2, pba, 5);
717
718static struct atmel_uart_data atmel_usart3_data = {
719 .use_dma_tx = 1,
720 .use_dma_rx = 1,
721};
722static struct resource atmel_usart3_resource[] = {
723 PBMEM(0xffe01800),
724 IRQ(9),
725};
726DEFINE_DEV_DATA(atmel_usart, 3);
727DEV_CLK(usart, atmel_usart3, pba, 6);
728
729static inline void configure_usart0_pins(void)
730{
731 select_peripheral(PA(8), PERIPH_B, 0); /* RXD */
732 select_peripheral(PA(9), PERIPH_B, 0); /* TXD */
733}
734
735static inline void configure_usart1_pins(void)
736{
737 select_peripheral(PA(17), PERIPH_A, 0); /* RXD */
738 select_peripheral(PA(18), PERIPH_A, 0); /* TXD */
739}
740
741static inline void configure_usart2_pins(void)
742{
743 select_peripheral(PB(26), PERIPH_B, 0); /* RXD */
744 select_peripheral(PB(27), PERIPH_B, 0); /* TXD */
745}
746
747static inline void configure_usart3_pins(void)
748{
749 select_peripheral(PB(18), PERIPH_B, 0); /* RXD */
750 select_peripheral(PB(17), PERIPH_B, 0); /* TXD */
751}
752
753static struct platform_device *__initdata at32_usarts[4];
754
755void __init at32_map_usart(unsigned int hw_id, unsigned int line)
756{
757 struct platform_device *pdev;
758
759 switch (hw_id) {
760 case 0:
761 pdev = &atmel_usart0_device;
762 configure_usart0_pins();
763 break;
764 case 1:
765 pdev = &atmel_usart1_device;
766 configure_usart1_pins();
767 break;
768 case 2:
769 pdev = &atmel_usart2_device;
770 configure_usart2_pins();
771 break;
772 case 3:
773 pdev = &atmel_usart3_device;
774 configure_usart3_pins();
775 break;
776 default:
777 return;
778 }
779
780 if (PXSEG(pdev->resource[0].start) == P4SEG) {
781 /* Addresses in the P4 segment are permanently mapped 1:1 */
782 struct atmel_uart_data *data = pdev->dev.platform_data;
783 data->regs = (void __iomem *)pdev->resource[0].start;
784 }
785
786 pdev->id = line;
787 at32_usarts[line] = pdev;
788}
789
790struct platform_device *__init at32_add_device_usart(unsigned int id)
791{
792 platform_device_register(at32_usarts[id]);
793 return at32_usarts[id];
794}
795
796struct platform_device *atmel_default_console_device;
797
798void __init at32_setup_serial_console(unsigned int usart_id)
799{
800 atmel_default_console_device = at32_usarts[usart_id];
801}
802
803/* --------------------------------------------------------------------
804 * Ethernet
805 * -------------------------------------------------------------------- */
806
807#ifdef CONFIG_CPU_AT32AP7000
808static struct eth_platform_data macb0_data;
809static struct resource macb0_resource[] = {
810 PBMEM(0xfff01800),
811 IRQ(25),
812};
813DEFINE_DEV_DATA(macb, 0);
814DEV_CLK(hclk, macb0, hsb, 8);
815DEV_CLK(pclk, macb0, pbb, 6);
816
817static struct eth_platform_data macb1_data;
818static struct resource macb1_resource[] = {
819 PBMEM(0xfff01c00),
820 IRQ(26),
821};
822DEFINE_DEV_DATA(macb, 1);
823DEV_CLK(hclk, macb1, hsb, 9);
824DEV_CLK(pclk, macb1, pbb, 7);
825
826struct platform_device *__init
827at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
828{
829 struct platform_device *pdev;
830
831 switch (id) {
832 case 0:
833 pdev = &macb0_device;
834
835 select_peripheral(PC(3), PERIPH_A, 0); /* TXD0 */
836 select_peripheral(PC(4), PERIPH_A, 0); /* TXD1 */
837 select_peripheral(PC(7), PERIPH_A, 0); /* TXEN */
838 select_peripheral(PC(8), PERIPH_A, 0); /* TXCK */
839 select_peripheral(PC(9), PERIPH_A, 0); /* RXD0 */
840 select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */
841 select_peripheral(PC(13), PERIPH_A, 0); /* RXER */
842 select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */
843 select_peripheral(PC(16), PERIPH_A, 0); /* MDC */
844 select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */
845
846 if (!data->is_rmii) {
847 select_peripheral(PC(0), PERIPH_A, 0); /* COL */
848 select_peripheral(PC(1), PERIPH_A, 0); /* CRS */
849 select_peripheral(PC(2), PERIPH_A, 0); /* TXER */
850 select_peripheral(PC(5), PERIPH_A, 0); /* TXD2 */
851 select_peripheral(PC(6), PERIPH_A, 0); /* TXD3 */
852 select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */
853 select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */
854 select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */
855 select_peripheral(PC(18), PERIPH_A, 0); /* SPD */
856 }
857 break;
858
859 case 1:
860 pdev = &macb1_device;
861
862 select_peripheral(PD(13), PERIPH_B, 0); /* TXD0 */
863 select_peripheral(PD(14), PERIPH_B, 0); /* TXD1 */
864 select_peripheral(PD(11), PERIPH_B, 0); /* TXEN */
865 select_peripheral(PD(12), PERIPH_B, 0); /* TXCK */
866 select_peripheral(PD(10), PERIPH_B, 0); /* RXD0 */
867 select_peripheral(PD(6), PERIPH_B, 0); /* RXD1 */
868 select_peripheral(PD(5), PERIPH_B, 0); /* RXER */
869 select_peripheral(PD(4), PERIPH_B, 0); /* RXDV */
870 select_peripheral(PD(3), PERIPH_B, 0); /* MDC */
871 select_peripheral(PD(2), PERIPH_B, 0); /* MDIO */
872
873 if (!data->is_rmii) {
874 select_peripheral(PC(19), PERIPH_B, 0); /* COL */
875 select_peripheral(PC(23), PERIPH_B, 0); /* CRS */
876 select_peripheral(PC(26), PERIPH_B, 0); /* TXER */
877 select_peripheral(PC(27), PERIPH_B, 0); /* TXD2 */
878 select_peripheral(PC(28), PERIPH_B, 0); /* TXD3 */
879 select_peripheral(PC(29), PERIPH_B, 0); /* RXD2 */
880 select_peripheral(PC(30), PERIPH_B, 0); /* RXD3 */
881 select_peripheral(PC(24), PERIPH_B, 0); /* RXCK */
882 select_peripheral(PD(15), PERIPH_B, 0); /* SPD */
883 }
884 break;
885
886 default:
887 return NULL;
888 }
889
890 memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
891 platform_device_register(pdev);
892
893 return pdev;
894}
895#endif
896
897/* --------------------------------------------------------------------
898 * SPI
899 * -------------------------------------------------------------------- */
900static struct resource atmel_spi0_resource[] = {
901 PBMEM(0xffe00000),
902 IRQ(3),
903};
904DEFINE_DEV(atmel_spi, 0);
905DEV_CLK(spi_clk, atmel_spi0, pba, 0);
906
907static struct resource atmel_spi1_resource[] = {
908 PBMEM(0xffe00400),
909 IRQ(4),
910};
911DEFINE_DEV(atmel_spi, 1);
912DEV_CLK(spi_clk, atmel_spi1, pba, 1);
913
914static void __init
915at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,
916 unsigned int n, const u8 *pins)
917{
918 unsigned int pin, mode;
919
920 for (; n; n--, b++) {
921 b->bus_num = bus_num;
922 if (b->chip_select >= 4)
923 continue;
924 pin = (unsigned)b->controller_data;
925 if (!pin) {
926 pin = pins[b->chip_select];
927 b->controller_data = (void *)pin;
928 }
929 mode = AT32_GPIOF_OUTPUT;
930 if (!(b->mode & SPI_CS_HIGH))
931 mode |= AT32_GPIOF_HIGH;
932 at32_select_gpio(pin, mode);
933 }
934}
935
936struct platform_device *__init
937at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)
938{
939 /*
940 * Manage the chipselects as GPIOs, normally using the same pins
941 * the SPI controller expects; but boards can use other pins.
942 */
943 static u8 __initdata spi0_pins[] =
944 { GPIO_PIN_PA(3), GPIO_PIN_PA(4),
945 GPIO_PIN_PA(5), GPIO_PIN_PA(20), };
946 static u8 __initdata spi1_pins[] =
947 { GPIO_PIN_PB(2), GPIO_PIN_PB(3),
948 GPIO_PIN_PB(4), GPIO_PIN_PA(27), };
949 struct platform_device *pdev;
950
951 switch (id) {
952 case 0:
953 pdev = &atmel_spi0_device;
954 select_peripheral(PA(0), PERIPH_A, 0); /* MISO */
955 select_peripheral(PA(1), PERIPH_A, 0); /* MOSI */
956 select_peripheral(PA(2), PERIPH_A, 0); /* SCK */
957 at32_spi_setup_slaves(0, b, n, spi0_pins);
958 break;
959
960 case 1:
961 pdev = &atmel_spi1_device;
962 select_peripheral(PB(0), PERIPH_B, 0); /* MISO */
963 select_peripheral(PB(1), PERIPH_B, 0); /* MOSI */
964 select_peripheral(PB(5), PERIPH_B, 0); /* SCK */
965 at32_spi_setup_slaves(1, b, n, spi1_pins);
966 break;
967
968 default:
969 return NULL;
970 }
971
972 spi_register_board_info(b, n);
973 platform_device_register(pdev);
974 return pdev;
975}
976
977/* --------------------------------------------------------------------
978 * TWI
979 * -------------------------------------------------------------------- */
980static struct resource atmel_twi0_resource[] __initdata = {
981 PBMEM(0xffe00800),
982 IRQ(5),
983};
984static struct clk atmel_twi0_pclk = {
985 .name = "twi_pclk",
986 .parent = &pba_clk,
987 .mode = pba_clk_mode,
988 .get_rate = pba_clk_get_rate,
989 .index = 2,
990};
991
992struct platform_device *__init at32_add_device_twi(unsigned int id)
993{
994 struct platform_device *pdev;
995
996 if (id != 0)
997 return NULL;
998
999 pdev = platform_device_alloc("atmel_twi", id);
1000 if (!pdev)
1001 return NULL;
1002
1003 if (platform_device_add_resources(pdev, atmel_twi0_resource,
1004 ARRAY_SIZE(atmel_twi0_resource)))
1005 goto err_add_resources;
1006
1007 select_peripheral(PA(6), PERIPH_A, 0); /* SDA */
1008 select_peripheral(PA(7), PERIPH_A, 0); /* SDL */
1009
1010 atmel_twi0_pclk.dev = &pdev->dev;
1011
1012 platform_device_add(pdev);
1013 return pdev;
1014
1015err_add_resources:
1016 platform_device_put(pdev);
1017 return NULL;
1018}
1019
1020/* --------------------------------------------------------------------
1021 * MMC
1022 * -------------------------------------------------------------------- */
1023static struct resource atmel_mci0_resource[] __initdata = {
1024 PBMEM(0xfff02400),
1025 IRQ(28),
1026};
1027static struct clk atmel_mci0_pclk = {
1028 .name = "mci_clk",
1029 .parent = &pbb_clk,
1030 .mode = pbb_clk_mode,
1031 .get_rate = pbb_clk_get_rate,
1032 .index = 9,
1033};
1034
1035struct platform_device *__init at32_add_device_mci(unsigned int id)
1036{
1037 struct platform_device *pdev;
1038
1039 if (id != 0)
1040 return NULL;
1041
1042 pdev = platform_device_alloc("atmel_mci", id);
1043 if (!pdev)
1044 return NULL;
1045
1046 if (platform_device_add_resources(pdev, atmel_mci0_resource,
1047 ARRAY_SIZE(atmel_mci0_resource)))
1048 goto err_add_resources;
1049
1050 select_peripheral(PA(10), PERIPH_A, 0); /* CLK */
1051 select_peripheral(PA(11), PERIPH_A, 0); /* CMD */
1052 select_peripheral(PA(12), PERIPH_A, 0); /* DATA0 */
1053 select_peripheral(PA(13), PERIPH_A, 0); /* DATA1 */
1054 select_peripheral(PA(14), PERIPH_A, 0); /* DATA2 */
1055 select_peripheral(PA(15), PERIPH_A, 0); /* DATA3 */
1056
1057 atmel_mci0_pclk.dev = &pdev->dev;
1058
1059 platform_device_add(pdev);
1060 return pdev;
1061
1062err_add_resources:
1063 platform_device_put(pdev);
1064 return NULL;
1065}
1066
1067/* --------------------------------------------------------------------
1068 * LCDC
1069 * -------------------------------------------------------------------- */
1070#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1071static struct atmel_lcdfb_info atmel_lcdfb0_data;
1072static struct resource atmel_lcdfb0_resource[] = {
1073 {
1074 .start = 0xff000000,
1075 .end = 0xff000fff,
1076 .flags = IORESOURCE_MEM,
1077 },
1078 IRQ(1),
1079 {
1080 /* Placeholder for pre-allocated fb memory */
1081 .start = 0x00000000,
1082 .end = 0x00000000,
1083 .flags = 0,
1084 },
1085};
1086DEFINE_DEV_DATA(atmel_lcdfb, 0);
1087DEV_CLK(hck1, atmel_lcdfb0, hsb, 7);
1088static struct clk atmel_lcdfb0_pixclk = {
1089 .name = "lcdc_clk",
1090 .dev = &atmel_lcdfb0_device.dev,
1091 .mode = genclk_mode,
1092 .get_rate = genclk_get_rate,
1093 .set_rate = genclk_set_rate,
1094 .set_parent = genclk_set_parent,
1095 .index = 7,
1096};
1097
1098struct platform_device *__init
1099at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
1100 unsigned long fbmem_start, unsigned long fbmem_len)
1101{
1102 struct platform_device *pdev;
1103 struct atmel_lcdfb_info *info;
1104 struct fb_monspecs *monspecs;
1105 struct fb_videomode *modedb;
1106 unsigned int modedb_size;
1107
1108 /*
1109 * Do a deep copy of the fb data, monspecs and modedb. Make
1110 * sure all allocations are done before setting up the
1111 * portmux.
1112 */
1113 monspecs = kmemdup(data->default_monspecs,
1114 sizeof(struct fb_monspecs), GFP_KERNEL);
1115 if (!monspecs)
1116 return NULL;
1117
1118 modedb_size = sizeof(struct fb_videomode) * monspecs->modedb_len;
1119 modedb = kmemdup(monspecs->modedb, modedb_size, GFP_KERNEL);
1120 if (!modedb)
1121 goto err_dup_modedb;
1122 monspecs->modedb = modedb;
1123
1124 switch (id) {
1125 case 0:
1126 pdev = &atmel_lcdfb0_device;
1127 select_peripheral(PC(19), PERIPH_A, 0); /* CC */
1128 select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC */
1129 select_peripheral(PC(21), PERIPH_A, 0); /* PCLK */
1130 select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC */
1131 select_peripheral(PC(23), PERIPH_A, 0); /* DVAL */
1132 select_peripheral(PC(24), PERIPH_A, 0); /* MODE */
1133 select_peripheral(PC(25), PERIPH_A, 0); /* PWR */
1134 select_peripheral(PC(26), PERIPH_A, 0); /* DATA0 */
1135 select_peripheral(PC(27), PERIPH_A, 0); /* DATA1 */
1136 select_peripheral(PC(28), PERIPH_A, 0); /* DATA2 */
1137 select_peripheral(PC(29), PERIPH_A, 0); /* DATA3 */
1138 select_peripheral(PC(30), PERIPH_A, 0); /* DATA4 */
1139 select_peripheral(PC(31), PERIPH_A, 0); /* DATA5 */
1140 select_peripheral(PD(0), PERIPH_A, 0); /* DATA6 */
1141 select_peripheral(PD(1), PERIPH_A, 0); /* DATA7 */
1142 select_peripheral(PD(2), PERIPH_A, 0); /* DATA8 */
1143 select_peripheral(PD(3), PERIPH_A, 0); /* DATA9 */
1144 select_peripheral(PD(4), PERIPH_A, 0); /* DATA10 */
1145 select_peripheral(PD(5), PERIPH_A, 0); /* DATA11 */
1146 select_peripheral(PD(6), PERIPH_A, 0); /* DATA12 */
1147 select_peripheral(PD(7), PERIPH_A, 0); /* DATA13 */
1148 select_peripheral(PD(8), PERIPH_A, 0); /* DATA14 */
1149 select_peripheral(PD(9), PERIPH_A, 0); /* DATA15 */
1150 select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */
1151 select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */
1152 select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */
1153 select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */
1154 select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */
1155 select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */
1156 select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */
1157 select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */
1158
1159 clk_set_parent(&atmel_lcdfb0_pixclk, &pll0);
1160 clk_set_rate(&atmel_lcdfb0_pixclk, clk_get_rate(&pll0));
1161 break;
1162
1163 default:
1164 goto err_invalid_id;
1165 }
1166
1167 if (fbmem_len) {
1168 pdev->resource[2].start = fbmem_start;
1169 pdev->resource[2].end = fbmem_start + fbmem_len - 1;
1170 pdev->resource[2].flags = IORESOURCE_MEM;
1171 }
1172
1173 info = pdev->dev.platform_data;
1174 memcpy(info, data, sizeof(struct atmel_lcdfb_info));
1175 info->default_monspecs = monspecs;
1176
1177 platform_device_register(pdev);
1178 return pdev;
1179
1180err_invalid_id:
1181 kfree(modedb);
1182err_dup_modedb:
1183 kfree(monspecs);
1184 return NULL;
1185}
1186#endif
1187
1188/* --------------------------------------------------------------------
1189 * SSC
1190 * -------------------------------------------------------------------- */
1191static struct resource ssc0_resource[] = {
1192 PBMEM(0xffe01c00),
1193 IRQ(10),
1194};
1195DEFINE_DEV(ssc, 0);
1196DEV_CLK(pclk, ssc0, pba, 7);
1197
1198static struct resource ssc1_resource[] = {
1199 PBMEM(0xffe02000),
1200 IRQ(11),
1201};
1202DEFINE_DEV(ssc, 1);
1203DEV_CLK(pclk, ssc1, pba, 8);
1204
1205static struct resource ssc2_resource[] = {
1206 PBMEM(0xffe02400),
1207 IRQ(12),
1208};
1209DEFINE_DEV(ssc, 2);
1210DEV_CLK(pclk, ssc2, pba, 9);
1211
1212struct platform_device *__init
1213at32_add_device_ssc(unsigned int id, unsigned int flags)
1214{
1215 struct platform_device *pdev;
1216
1217 switch (id) {
1218 case 0:
1219 pdev = &ssc0_device;
1220 if (flags & ATMEL_SSC_RF)
1221 select_peripheral(PA(21), PERIPH_A, 0); /* RF */
1222 if (flags & ATMEL_SSC_RK)
1223 select_peripheral(PA(22), PERIPH_A, 0); /* RK */
1224 if (flags & ATMEL_SSC_TK)
1225 select_peripheral(PA(23), PERIPH_A, 0); /* TK */
1226 if (flags & ATMEL_SSC_TF)
1227 select_peripheral(PA(24), PERIPH_A, 0); /* TF */
1228 if (flags & ATMEL_SSC_TD)
1229 select_peripheral(PA(25), PERIPH_A, 0); /* TD */
1230 if (flags & ATMEL_SSC_RD)
1231 select_peripheral(PA(26), PERIPH_A, 0); /* RD */
1232 break;
1233 case 1:
1234 pdev = &ssc1_device;
1235 if (flags & ATMEL_SSC_RF)
1236 select_peripheral(PA(0), PERIPH_B, 0); /* RF */
1237 if (flags & ATMEL_SSC_RK)
1238 select_peripheral(PA(1), PERIPH_B, 0); /* RK */
1239 if (flags & ATMEL_SSC_TK)
1240 select_peripheral(PA(2), PERIPH_B, 0); /* TK */
1241 if (flags & ATMEL_SSC_TF)
1242 select_peripheral(PA(3), PERIPH_B, 0); /* TF */
1243 if (flags & ATMEL_SSC_TD)
1244 select_peripheral(PA(4), PERIPH_B, 0); /* TD */
1245 if (flags & ATMEL_SSC_RD)
1246 select_peripheral(PA(5), PERIPH_B, 0); /* RD */
1247 break;
1248 case 2:
1249 pdev = &ssc2_device;
1250 if (flags & ATMEL_SSC_TD)
1251 select_peripheral(PB(13), PERIPH_A, 0); /* TD */
1252 if (flags & ATMEL_SSC_RD)
1253 select_peripheral(PB(14), PERIPH_A, 0); /* RD */
1254 if (flags & ATMEL_SSC_TK)
1255 select_peripheral(PB(15), PERIPH_A, 0); /* TK */
1256 if (flags & ATMEL_SSC_TF)
1257 select_peripheral(PB(16), PERIPH_A, 0); /* TF */
1258 if (flags & ATMEL_SSC_RF)
1259 select_peripheral(PB(17), PERIPH_A, 0); /* RF */
1260 if (flags & ATMEL_SSC_RK)
1261 select_peripheral(PB(18), PERIPH_A, 0); /* RK */
1262 break;
1263 default:
1264 return NULL;
1265 }
1266
1267 platform_device_register(pdev);
1268 return pdev;
1269}
1270
1271/* --------------------------------------------------------------------
1272 * USB Device Controller
1273 * -------------------------------------------------------------------- */
1274static struct resource usba0_resource[] __initdata = {
1275 {
1276 .start = 0xff300000,
1277 .end = 0xff3fffff,
1278 .flags = IORESOURCE_MEM,
1279 }, {
1280 .start = 0xfff03000,
1281 .end = 0xfff033ff,
1282 .flags = IORESOURCE_MEM,
1283 },
1284 IRQ(31),
1285};
1286static struct clk usba0_pclk = {
1287 .name = "pclk",
1288 .parent = &pbb_clk,
1289 .mode = pbb_clk_mode,
1290 .get_rate = pbb_clk_get_rate,
1291 .index = 12,
1292};
1293static struct clk usba0_hclk = {
1294 .name = "hclk",
1295 .parent = &hsb_clk,
1296 .mode = hsb_clk_mode,
1297 .get_rate = hsb_clk_get_rate,
1298 .index = 6,
1299};
1300
1301struct platform_device *__init
1302at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
1303{
1304 struct platform_device *pdev;
1305
1306 if (id != 0)
1307 return NULL;
1308
1309 pdev = platform_device_alloc("atmel_usba_udc", 0);
1310 if (!pdev)
1311 return NULL;
1312
1313 if (platform_device_add_resources(pdev, usba0_resource,
1314 ARRAY_SIZE(usba0_resource)))
1315 goto out_free_pdev;
1316
1317 if (data) {
1318 if (platform_device_add_data(pdev, data, sizeof(*data)))
1319 goto out_free_pdev;
1320
1321 if (data->vbus_pin != GPIO_PIN_NONE)
1322 at32_select_gpio(data->vbus_pin, 0);
1323 }
1324
1325 usba0_pclk.dev = &pdev->dev;
1326 usba0_hclk.dev = &pdev->dev;
1327
1328 platform_device_add(pdev);
1329
1330 return pdev;
1331
1332out_free_pdev:
1333 platform_device_put(pdev);
1334 return NULL;
1335}
1336
1337/* --------------------------------------------------------------------
1338 * IDE / CompactFlash
1339 * -------------------------------------------------------------------- */
1340#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7001)
1341static struct resource at32_smc_cs4_resource[] __initdata = {
1342 {
1343 .start = 0x04000000,
1344 .end = 0x07ffffff,
1345 .flags = IORESOURCE_MEM,
1346 },
1347 IRQ(~0UL), /* Magic IRQ will be overridden */
1348};
1349static struct resource at32_smc_cs5_resource[] __initdata = {
1350 {
1351 .start = 0x20000000,
1352 .end = 0x23ffffff,
1353 .flags = IORESOURCE_MEM,
1354 },
1355 IRQ(~0UL), /* Magic IRQ will be overridden */
1356};
1357
1358static int __init at32_init_ide_or_cf(struct platform_device *pdev,
1359 unsigned int cs, unsigned int extint)
1360{
1361 static unsigned int extint_pin_map[4] __initdata = {
1362 GPIO_PIN_PB(25),
1363 GPIO_PIN_PB(26),
1364 GPIO_PIN_PB(27),
1365 GPIO_PIN_PB(28),
1366 };
1367 static bool common_pins_initialized __initdata = false;
1368 unsigned int extint_pin;
1369 int ret;
1370
1371 if (extint >= ARRAY_SIZE(extint_pin_map))
1372 return -EINVAL;
1373 extint_pin = extint_pin_map[extint];
1374
1375 switch (cs) {
1376 case 4:
1377 ret = platform_device_add_resources(pdev,
1378 at32_smc_cs4_resource,
1379 ARRAY_SIZE(at32_smc_cs4_resource));
1380 if (ret)
1381 return ret;
1382
1383 select_peripheral(PE(21), PERIPH_A, 0); /* NCS4 -> OE_N */
1384 set_ebi_sfr_bits(HMATRIX_BIT(CS4A));
1385 break;
1386 case 5:
1387 ret = platform_device_add_resources(pdev,
1388 at32_smc_cs5_resource,
1389 ARRAY_SIZE(at32_smc_cs5_resource));
1390 if (ret)
1391 return ret;
1392
1393 select_peripheral(PE(22), PERIPH_A, 0); /* NCS5 -> OE_N */
1394 set_ebi_sfr_bits(HMATRIX_BIT(CS5A));
1395 break;
1396 default:
1397 return -EINVAL;
1398 }
1399
1400 if (!common_pins_initialized) {
1401 select_peripheral(PE(19), PERIPH_A, 0); /* CFCE1 -> CS0_N */
1402 select_peripheral(PE(20), PERIPH_A, 0); /* CFCE2 -> CS1_N */
1403 select_peripheral(PE(23), PERIPH_A, 0); /* CFRNW -> DIR */
1404 select_peripheral(PE(24), PERIPH_A, 0); /* NWAIT <- IORDY */
1405 common_pins_initialized = true;
1406 }
1407
1408 at32_select_periph(extint_pin, GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
1409
1410 pdev->resource[1].start = EIM_IRQ_BASE + extint;
1411 pdev->resource[1].end = pdev->resource[1].start;
1412
1413 return 0;
1414}
1415
1416struct platform_device *__init
1417at32_add_device_ide(unsigned int id, unsigned int extint,
1418 struct ide_platform_data *data)
1419{
1420 struct platform_device *pdev;
1421
1422 pdev = platform_device_alloc("at32_ide", id);
1423 if (!pdev)
1424 goto fail;
1425
1426 if (platform_device_add_data(pdev, data,
1427 sizeof(struct ide_platform_data)))
1428 goto fail;
1429
1430 if (at32_init_ide_or_cf(pdev, data->cs, extint))
1431 goto fail;
1432
1433 platform_device_add(pdev);
1434 return pdev;
1435
1436fail:
1437 platform_device_put(pdev);
1438 return NULL;
1439}
1440
1441struct platform_device *__init
1442at32_add_device_cf(unsigned int id, unsigned int extint,
1443 struct cf_platform_data *data)
1444{
1445 struct platform_device *pdev;
1446
1447 pdev = platform_device_alloc("at32_cf", id);
1448 if (!pdev)
1449 goto fail;
1450
1451 if (platform_device_add_data(pdev, data,
1452 sizeof(struct cf_platform_data)))
1453 goto fail;
1454
1455 if (at32_init_ide_or_cf(pdev, data->cs, extint))
1456 goto fail;
1457
1458 if (data->detect_pin != GPIO_PIN_NONE)
1459 at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
1460 if (data->reset_pin != GPIO_PIN_NONE)
1461 at32_select_gpio(data->reset_pin, 0);
1462 if (data->vcc_pin != GPIO_PIN_NONE)
1463 at32_select_gpio(data->vcc_pin, 0);
1464 /* READY is used as extint, so we can't select it as gpio */
1465
1466 platform_device_add(pdev);
1467 return pdev;
1468
1469fail:
1470 platform_device_put(pdev);
1471 return NULL;
1472}
1473#endif
1474
1475/* --------------------------------------------------------------------
1476 * AC97C
1477 * -------------------------------------------------------------------- */
1478static struct resource atmel_ac97c0_resource[] __initdata = {
1479 PBMEM(0xfff02800),
1480 IRQ(29),
1481};
1482static struct clk atmel_ac97c0_pclk = {
1483 .name = "pclk",
1484 .parent = &pbb_clk,
1485 .mode = pbb_clk_mode,
1486 .get_rate = pbb_clk_get_rate,
1487 .index = 10,
1488};
1489
1490struct platform_device *__init at32_add_device_ac97c(unsigned int id)
1491{
1492 struct platform_device *pdev;
1493
1494 if (id != 0)
1495 return NULL;
1496
1497 pdev = platform_device_alloc("atmel_ac97c", id);
1498 if (!pdev)
1499 return NULL;
1500
1501 if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
1502 ARRAY_SIZE(atmel_ac97c0_resource)))
1503 goto err_add_resources;
1504
1505 select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */
1506 select_peripheral(PB(21), PERIPH_B, 0); /* SDO */
1507 select_peripheral(PB(22), PERIPH_B, 0); /* SDI */
1508 select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */
1509
1510 atmel_ac97c0_pclk.dev = &pdev->dev;
1511
1512 platform_device_add(pdev);
1513 return pdev;
1514
1515err_add_resources:
1516 platform_device_put(pdev);
1517 return NULL;
1518}
1519
1520/* --------------------------------------------------------------------
1521 * ABDAC
1522 * -------------------------------------------------------------------- */
1523static struct resource abdac0_resource[] __initdata = {
1524 PBMEM(0xfff02000),
1525 IRQ(27),
1526};
1527static struct clk abdac0_pclk = {
1528 .name = "pclk",
1529 .parent = &pbb_clk,
1530 .mode = pbb_clk_mode,
1531 .get_rate = pbb_clk_get_rate,
1532 .index = 8,
1533};
1534static struct clk abdac0_sample_clk = {
1535 .name = "sample_clk",
1536 .mode = genclk_mode,
1537 .get_rate = genclk_get_rate,
1538 .set_rate = genclk_set_rate,
1539 .set_parent = genclk_set_parent,
1540 .index = 6,
1541};
1542
1543struct platform_device *__init at32_add_device_abdac(unsigned int id)
1544{
1545 struct platform_device *pdev;
1546
1547 if (id != 0)
1548 return NULL;
1549
1550 pdev = platform_device_alloc("abdac", id);
1551 if (!pdev)
1552 return NULL;
1553
1554 if (platform_device_add_resources(pdev, abdac0_resource,
1555 ARRAY_SIZE(abdac0_resource)))
1556 goto err_add_resources;
1557
1558 select_peripheral(PB(20), PERIPH_A, 0); /* DATA1 */
1559 select_peripheral(PB(21), PERIPH_A, 0); /* DATA0 */
1560 select_peripheral(PB(22), PERIPH_A, 0); /* DATAN1 */
1561 select_peripheral(PB(23), PERIPH_A, 0); /* DATAN0 */
1562
1563 abdac0_pclk.dev = &pdev->dev;
1564 abdac0_sample_clk.dev = &pdev->dev;
1565
1566 platform_device_add(pdev);
1567 return pdev;
1568
1569err_add_resources:
1570 platform_device_put(pdev);
1571 return NULL;
1572}
1573
1574/* --------------------------------------------------------------------
1575 * GCLK
1576 * -------------------------------------------------------------------- */
1577static struct clk gclk0 = {
1578 .name = "gclk0",
1579 .mode = genclk_mode,
1580 .get_rate = genclk_get_rate,
1581 .set_rate = genclk_set_rate,
1582 .set_parent = genclk_set_parent,
1583 .index = 0,
1584};
1585static struct clk gclk1 = {
1586 .name = "gclk1",
1587 .mode = genclk_mode,
1588 .get_rate = genclk_get_rate,
1589 .set_rate = genclk_set_rate,
1590 .set_parent = genclk_set_parent,
1591 .index = 1,
1592};
1593static struct clk gclk2 = {
1594 .name = "gclk2",
1595 .mode = genclk_mode,
1596 .get_rate = genclk_get_rate,
1597 .set_rate = genclk_set_rate,
1598 .set_parent = genclk_set_parent,
1599 .index = 2,
1600};
1601static struct clk gclk3 = {
1602 .name = "gclk3",
1603 .mode = genclk_mode,
1604 .get_rate = genclk_get_rate,
1605 .set_rate = genclk_set_rate,
1606 .set_parent = genclk_set_parent,
1607 .index = 3,
1608};
1609static struct clk gclk4 = {
1610 .name = "gclk4",
1611 .mode = genclk_mode,
1612 .get_rate = genclk_get_rate,
1613 .set_rate = genclk_set_rate,
1614 .set_parent = genclk_set_parent,
1615 .index = 4,
1616};
1617
1618struct clk *at32_clock_list[] = {
1619 &osc32k,
1620 &osc0,
1621 &osc1,
1622 &pll0,
1623 &pll1,
1624 &cpu_clk,
1625 &hsb_clk,
1626 &pba_clk,
1627 &pbb_clk,
1628 &at32_pm_pclk,
1629 &at32_intc0_pclk,
1630 &hmatrix_clk,
1631 &ebi_clk,
1632 &hramc_clk,
1633 &smc0_pclk,
1634 &smc0_mck,
1635 &pdc_hclk,
1636 &pdc_pclk,
1637 &dmaca0_hclk,
1638 &pico_clk,
1639 &pio0_mck,
1640 &pio1_mck,
1641 &pio2_mck,
1642 &pio3_mck,
1643 &pio4_mck,
1644 &at32_systc0_pclk,
1645 &atmel_usart0_usart,
1646 &atmel_usart1_usart,
1647 &atmel_usart2_usart,
1648 &atmel_usart3_usart,
1649#if defined(CONFIG_CPU_AT32AP7000)
1650 &macb0_hclk,
1651 &macb0_pclk,
1652 &macb1_hclk,
1653 &macb1_pclk,
1654#endif
1655 &atmel_spi0_spi_clk,
1656 &atmel_spi1_spi_clk,
1657 &atmel_twi0_pclk,
1658 &atmel_mci0_pclk,
1659#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1660 &atmel_lcdfb0_hck1,
1661 &atmel_lcdfb0_pixclk,
1662#endif
1663 &ssc0_pclk,
1664 &ssc1_pclk,
1665 &ssc2_pclk,
1666 &usba0_hclk,
1667 &usba0_pclk,
1668 &atmel_ac97c0_pclk,
1669 &abdac0_pclk,
1670 &abdac0_sample_clk,
1671 &gclk0,
1672 &gclk1,
1673 &gclk2,
1674 &gclk3,
1675 &gclk4,
1676};
1677unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
1678
1679void __init at32_portmux_init(void)
1680{
1681 at32_init_pio(&pio0_device);
1682 at32_init_pio(&pio1_device);
1683 at32_init_pio(&pio2_device);
1684 at32_init_pio(&pio3_device);
1685 at32_init_pio(&pio4_device);
1686}
1687
1688void __init at32_clock_init(void)
1689{
1690 u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
1691 int i;
1692
1693 if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) {
1694 main_clock = &pll0;
1695 cpu_clk.parent = &pll0;
1696 } else {
1697 main_clock = &osc0;
1698 cpu_clk.parent = &osc0;
1699 }
1700
1701 if (pm_readl(PLL0) & PM_BIT(PLLOSC))
1702 pll0.parent = &osc1;
1703 if (pm_readl(PLL1) & PM_BIT(PLLOSC))
1704 pll1.parent = &osc1;
1705
1706 genclk_init_parent(&gclk0);
1707 genclk_init_parent(&gclk1);
1708 genclk_init_parent(&gclk2);
1709 genclk_init_parent(&gclk3);
1710 genclk_init_parent(&gclk4);
1711#if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
1712 genclk_init_parent(&atmel_lcdfb0_pixclk);
1713#endif
1714 genclk_init_parent(&abdac0_sample_clk);
1715
1716 /*
1717 * Turn on all clocks that have at least one user already, and
1718 * turn off everything else. We only do this for module
1719 * clocks, and even though it isn't particularly pretty to
1720 * check the address of the mode function, it should do the
1721 * trick...
1722 */
1723 for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
1724 struct clk *clk = at32_clock_list[i];
1725
1726 if (clk->users == 0)
1727 continue;
1728
1729 if (clk->mode == &cpu_clk_mode)
1730 cpu_mask |= 1 << clk->index;
1731 else if (clk->mode == &hsb_clk_mode)
1732 hsb_mask |= 1 << clk->index;
1733 else if (clk->mode == &pba_clk_mode)
1734 pba_mask |= 1 << clk->index;
1735 else if (clk->mode == &pbb_clk_mode)
1736 pbb_mask |= 1 << clk->index;
1737 }
1738
1739 pm_writel(CPU_MASK, cpu_mask);
1740 pm_writel(HSB_MASK, hsb_mask);
1741 pm_writel(PBA_MASK, pba_mask);
1742 pm_writel(PBB_MASK, pbb_mask);
1743}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-05 22:06:54 -0500