[ARM] DNS323: Initialise 88F5182 correctly
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-kirkwood / common.c
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1/*
2 * arch/arm/mach-kirkwood/common.c
3 *
4 * Core functions for Marvell Kirkwood SoCs
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/serial_8250.h>
15#include <linux/mbus.h>
16#include <linux/mv643xx_eth.h>
17#include <linux/ata_platform.h>
18365d18 18#include <linux/spi/orion_spi.h>
dcf1cece 19#include <net/dsa.h>
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20#include <asm/page.h>
21#include <asm/timex.h>
22#include <asm/mach/map.h>
23#include <asm/mach/time.h>
a09e64fb 24#include <mach/kirkwood.h>
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25#include <plat/cache-feroceon-l2.h>
26#include <plat/ehci-orion.h>
09c0ed2e 27#include <plat/mv_xor.h>
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28#include <plat/orion_nand.h>
29#include <plat/time.h>
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30#include "common.h"
31
32/*****************************************************************************
33 * I/O Address Mapping
34 ****************************************************************************/
35static struct map_desc kirkwood_io_desc[] __initdata = {
36 {
37 .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE,
38 .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
39 .length = KIRKWOOD_PCIE_IO_SIZE,
40 .type = MT_DEVICE,
41 }, {
42 .virtual = KIRKWOOD_REGS_VIRT_BASE,
43 .pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
44 .length = KIRKWOOD_REGS_SIZE,
45 .type = MT_DEVICE,
46 },
47};
48
49void __init kirkwood_map_io(void)
50{
51 iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
52}
53
54
55/*****************************************************************************
56 * EHCI
57 ****************************************************************************/
58static struct orion_ehci_data kirkwood_ehci_data = {
59 .dram = &kirkwood_mbus_dram_info,
fb6f5529 60 .phy_version = EHCI_PHY_NA,
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61};
62
63static u64 ehci_dmamask = 0xffffffffUL;
64
65
66/*****************************************************************************
67 * EHCI0
68 ****************************************************************************/
69static struct resource kirkwood_ehci_resources[] = {
70 {
71 .start = USB_PHYS_BASE,
72 .end = USB_PHYS_BASE + 0x0fff,
73 .flags = IORESOURCE_MEM,
74 }, {
75 .start = IRQ_KIRKWOOD_USB,
76 .end = IRQ_KIRKWOOD_USB,
77 .flags = IORESOURCE_IRQ,
78 },
79};
80
81static struct platform_device kirkwood_ehci = {
82 .name = "orion-ehci",
83 .id = 0,
84 .dev = {
85 .dma_mask = &ehci_dmamask,
86 .coherent_dma_mask = 0xffffffff,
87 .platform_data = &kirkwood_ehci_data,
88 },
89 .resource = kirkwood_ehci_resources,
90 .num_resources = ARRAY_SIZE(kirkwood_ehci_resources),
91};
92
93void __init kirkwood_ehci_init(void)
94{
95 platform_device_register(&kirkwood_ehci);
96}
97
98
99/*****************************************************************************
100 * GE00
101 ****************************************************************************/
102struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
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103 .dram = &kirkwood_mbus_dram_info,
104};
105
106static struct resource kirkwood_ge00_shared_resources[] = {
107 {
108 .name = "ge00 base",
109 .start = GE00_PHYS_BASE + 0x2000,
110 .end = GE00_PHYS_BASE + 0x3fff,
111 .flags = IORESOURCE_MEM,
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112 }, {
113 .name = "ge00 err irq",
114 .start = IRQ_KIRKWOOD_GE00_ERR,
115 .end = IRQ_KIRKWOOD_GE00_ERR,
116 .flags = IORESOURCE_IRQ,
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117 },
118};
119
120static struct platform_device kirkwood_ge00_shared = {
121 .name = MV643XX_ETH_SHARED_NAME,
122 .id = 0,
123 .dev = {
124 .platform_data = &kirkwood_ge00_shared_data,
125 },
144f814a 126 .num_resources = ARRAY_SIZE(kirkwood_ge00_shared_resources),
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127 .resource = kirkwood_ge00_shared_resources,
128};
129
130static struct resource kirkwood_ge00_resources[] = {
131 {
132 .name = "ge00 irq",
133 .start = IRQ_KIRKWOOD_GE00_SUM,
134 .end = IRQ_KIRKWOOD_GE00_SUM,
135 .flags = IORESOURCE_IRQ,
136 },
137};
138
139static struct platform_device kirkwood_ge00 = {
140 .name = MV643XX_ETH_NAME,
141 .id = 0,
142 .num_resources = 1,
143 .resource = kirkwood_ge00_resources,
144};
145
146void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
147{
148 eth_data->shared = &kirkwood_ge00_shared;
149 kirkwood_ge00.dev.platform_data = eth_data;
150
151 platform_device_register(&kirkwood_ge00_shared);
152 platform_device_register(&kirkwood_ge00);
153}
154
155
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156/*****************************************************************************
157 * Ethernet switch
158 ****************************************************************************/
159static struct resource kirkwood_switch_resources[] = {
160 {
161 .start = 0,
162 .end = 0,
163 .flags = IORESOURCE_IRQ,
164 },
165};
166
167static struct platform_device kirkwood_switch_device = {
168 .name = "dsa",
169 .id = 0,
170 .num_resources = 0,
171 .resource = kirkwood_switch_resources,
172};
173
174void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
175{
176 if (irq != NO_IRQ) {
177 kirkwood_switch_resources[0].start = irq;
178 kirkwood_switch_resources[0].end = irq;
179 kirkwood_switch_device.num_resources = 1;
180 }
181
182 d->mii_bus = &kirkwood_ge00_shared.dev;
183 d->netdev = &kirkwood_ge00.dev;
184 kirkwood_switch_device.dev.platform_data = d;
185
186 platform_device_register(&kirkwood_switch_device);
187}
188
189
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190/*****************************************************************************
191 * SoC RTC
192 ****************************************************************************/
193static struct resource kirkwood_rtc_resource = {
194 .start = RTC_PHYS_BASE,
195 .end = RTC_PHYS_BASE + SZ_16 - 1,
196 .flags = IORESOURCE_MEM,
197};
198
199void __init kirkwood_rtc_init(void)
200{
201 platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
202}
203
204
205/*****************************************************************************
206 * SATA
207 ****************************************************************************/
208static struct resource kirkwood_sata_resources[] = {
209 {
210 .name = "sata base",
211 .start = SATA_PHYS_BASE,
212 .end = SATA_PHYS_BASE + 0x5000 - 1,
213 .flags = IORESOURCE_MEM,
214 }, {
215 .name = "sata irq",
216 .start = IRQ_KIRKWOOD_SATA,
217 .end = IRQ_KIRKWOOD_SATA,
218 .flags = IORESOURCE_IRQ,
219 },
220};
221
222static struct platform_device kirkwood_sata = {
223 .name = "sata_mv",
224 .id = 0,
225 .dev = {
226 .coherent_dma_mask = 0xffffffff,
227 },
228 .num_resources = ARRAY_SIZE(kirkwood_sata_resources),
229 .resource = kirkwood_sata_resources,
230};
231
232void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
233{
234 sata_data->dram = &kirkwood_mbus_dram_info;
235 kirkwood_sata.dev.platform_data = sata_data;
236 platform_device_register(&kirkwood_sata);
237}
238
239
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240/*****************************************************************************
241 * SPI
242 ****************************************************************************/
243static struct orion_spi_info kirkwood_spi_plat_data = {
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244};
245
246static struct resource kirkwood_spi_resources[] = {
247 {
248 .start = SPI_PHYS_BASE,
249 .end = SPI_PHYS_BASE + SZ_512 - 1,
250 .flags = IORESOURCE_MEM,
251 },
252};
253
254static struct platform_device kirkwood_spi = {
255 .name = "orion_spi",
256 .id = 0,
257 .resource = kirkwood_spi_resources,
258 .dev = {
259 .platform_data = &kirkwood_spi_plat_data,
260 },
261 .num_resources = ARRAY_SIZE(kirkwood_spi_resources),
262};
263
264void __init kirkwood_spi_init()
265{
266 platform_device_register(&kirkwood_spi);
267}
268
269
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270/*****************************************************************************
271 * UART0
272 ****************************************************************************/
273static struct plat_serial8250_port kirkwood_uart0_data[] = {
274 {
275 .mapbase = UART0_PHYS_BASE,
276 .membase = (char *)UART0_VIRT_BASE,
277 .irq = IRQ_KIRKWOOD_UART_0,
278 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
279 .iotype = UPIO_MEM,
280 .regshift = 2,
79d4dd77 281 .uartclk = 0,
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282 }, {
283 },
284};
285
286static struct resource kirkwood_uart0_resources[] = {
287 {
288 .start = UART0_PHYS_BASE,
289 .end = UART0_PHYS_BASE + 0xff,
290 .flags = IORESOURCE_MEM,
291 }, {
292 .start = IRQ_KIRKWOOD_UART_0,
293 .end = IRQ_KIRKWOOD_UART_0,
294 .flags = IORESOURCE_IRQ,
295 },
296};
297
298static struct platform_device kirkwood_uart0 = {
299 .name = "serial8250",
300 .id = 0,
301 .dev = {
302 .platform_data = kirkwood_uart0_data,
303 },
304 .resource = kirkwood_uart0_resources,
305 .num_resources = ARRAY_SIZE(kirkwood_uart0_resources),
306};
307
308void __init kirkwood_uart0_init(void)
309{
310 platform_device_register(&kirkwood_uart0);
311}
312
313
314/*****************************************************************************
315 * UART1
316 ****************************************************************************/
317static struct plat_serial8250_port kirkwood_uart1_data[] = {
318 {
319 .mapbase = UART1_PHYS_BASE,
320 .membase = (char *)UART1_VIRT_BASE,
321 .irq = IRQ_KIRKWOOD_UART_1,
322 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
323 .iotype = UPIO_MEM,
324 .regshift = 2,
79d4dd77 325 .uartclk = 0,
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326 }, {
327 },
328};
329
330static struct resource kirkwood_uart1_resources[] = {
331 {
332 .start = UART1_PHYS_BASE,
333 .end = UART1_PHYS_BASE + 0xff,
334 .flags = IORESOURCE_MEM,
335 }, {
336 .start = IRQ_KIRKWOOD_UART_1,
337 .end = IRQ_KIRKWOOD_UART_1,
338 .flags = IORESOURCE_IRQ,
339 },
340};
341
342static struct platform_device kirkwood_uart1 = {
343 .name = "serial8250",
344 .id = 1,
345 .dev = {
346 .platform_data = kirkwood_uart1_data,
347 },
348 .resource = kirkwood_uart1_resources,
349 .num_resources = ARRAY_SIZE(kirkwood_uart1_resources),
350};
351
352void __init kirkwood_uart1_init(void)
353{
354 platform_device_register(&kirkwood_uart1);
355}
356
357
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358/*****************************************************************************
359 * XOR
360 ****************************************************************************/
361static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
362 .dram = &kirkwood_mbus_dram_info,
363};
364
365static u64 kirkwood_xor_dmamask = DMA_32BIT_MASK;
366
367
368/*****************************************************************************
369 * XOR0
370 ****************************************************************************/
371static struct resource kirkwood_xor0_shared_resources[] = {
372 {
373 .name = "xor 0 low",
374 .start = XOR0_PHYS_BASE,
375 .end = XOR0_PHYS_BASE + 0xff,
376 .flags = IORESOURCE_MEM,
377 }, {
378 .name = "xor 0 high",
379 .start = XOR0_HIGH_PHYS_BASE,
380 .end = XOR0_HIGH_PHYS_BASE + 0xff,
381 .flags = IORESOURCE_MEM,
382 },
383};
384
385static struct platform_device kirkwood_xor0_shared = {
386 .name = MV_XOR_SHARED_NAME,
387 .id = 0,
388 .dev = {
389 .platform_data = &kirkwood_xor_shared_data,
390 },
391 .num_resources = ARRAY_SIZE(kirkwood_xor0_shared_resources),
392 .resource = kirkwood_xor0_shared_resources,
393};
394
395static struct resource kirkwood_xor00_resources[] = {
396 [0] = {
397 .start = IRQ_KIRKWOOD_XOR_00,
398 .end = IRQ_KIRKWOOD_XOR_00,
399 .flags = IORESOURCE_IRQ,
400 },
401};
402
403static struct mv_xor_platform_data kirkwood_xor00_data = {
404 .shared = &kirkwood_xor0_shared,
405 .hw_id = 0,
406 .pool_size = PAGE_SIZE,
407};
408
409static struct platform_device kirkwood_xor00_channel = {
410 .name = MV_XOR_NAME,
411 .id = 0,
412 .num_resources = ARRAY_SIZE(kirkwood_xor00_resources),
413 .resource = kirkwood_xor00_resources,
414 .dev = {
415 .dma_mask = &kirkwood_xor_dmamask,
416 .coherent_dma_mask = DMA_64BIT_MASK,
417 .platform_data = (void *)&kirkwood_xor00_data,
418 },
419};
420
421static struct resource kirkwood_xor01_resources[] = {
422 [0] = {
423 .start = IRQ_KIRKWOOD_XOR_01,
424 .end = IRQ_KIRKWOOD_XOR_01,
425 .flags = IORESOURCE_IRQ,
426 },
427};
428
429static struct mv_xor_platform_data kirkwood_xor01_data = {
430 .shared = &kirkwood_xor0_shared,
431 .hw_id = 1,
432 .pool_size = PAGE_SIZE,
433};
434
435static struct platform_device kirkwood_xor01_channel = {
436 .name = MV_XOR_NAME,
437 .id = 1,
438 .num_resources = ARRAY_SIZE(kirkwood_xor01_resources),
439 .resource = kirkwood_xor01_resources,
440 .dev = {
441 .dma_mask = &kirkwood_xor_dmamask,
442 .coherent_dma_mask = DMA_64BIT_MASK,
443 .platform_data = (void *)&kirkwood_xor01_data,
444 },
445};
446
447void __init kirkwood_xor0_init(void)
448{
449 platform_device_register(&kirkwood_xor0_shared);
450
451 /*
452 * two engines can't do memset simultaneously, this limitation
453 * satisfied by removing memset support from one of the engines.
454 */
455 dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
456 dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
457 platform_device_register(&kirkwood_xor00_channel);
458
459 dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
460 dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
461 dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
462 platform_device_register(&kirkwood_xor01_channel);
463}
464
465
466/*****************************************************************************
467 * XOR1
468 ****************************************************************************/
469static struct resource kirkwood_xor1_shared_resources[] = {
470 {
471 .name = "xor 1 low",
472 .start = XOR1_PHYS_BASE,
473 .end = XOR1_PHYS_BASE + 0xff,
474 .flags = IORESOURCE_MEM,
475 }, {
476 .name = "xor 1 high",
477 .start = XOR1_HIGH_PHYS_BASE,
478 .end = XOR1_HIGH_PHYS_BASE + 0xff,
479 .flags = IORESOURCE_MEM,
480 },
481};
482
483static struct platform_device kirkwood_xor1_shared = {
484 .name = MV_XOR_SHARED_NAME,
485 .id = 1,
486 .dev = {
487 .platform_data = &kirkwood_xor_shared_data,
488 },
489 .num_resources = ARRAY_SIZE(kirkwood_xor1_shared_resources),
490 .resource = kirkwood_xor1_shared_resources,
491};
492
493static struct resource kirkwood_xor10_resources[] = {
494 [0] = {
495 .start = IRQ_KIRKWOOD_XOR_10,
496 .end = IRQ_KIRKWOOD_XOR_10,
497 .flags = IORESOURCE_IRQ,
498 },
499};
500
501static struct mv_xor_platform_data kirkwood_xor10_data = {
502 .shared = &kirkwood_xor1_shared,
503 .hw_id = 0,
504 .pool_size = PAGE_SIZE,
505};
506
507static struct platform_device kirkwood_xor10_channel = {
508 .name = MV_XOR_NAME,
509 .id = 2,
510 .num_resources = ARRAY_SIZE(kirkwood_xor10_resources),
511 .resource = kirkwood_xor10_resources,
512 .dev = {
513 .dma_mask = &kirkwood_xor_dmamask,
514 .coherent_dma_mask = DMA_64BIT_MASK,
515 .platform_data = (void *)&kirkwood_xor10_data,
516 },
517};
518
519static struct resource kirkwood_xor11_resources[] = {
520 [0] = {
521 .start = IRQ_KIRKWOOD_XOR_11,
522 .end = IRQ_KIRKWOOD_XOR_11,
523 .flags = IORESOURCE_IRQ,
524 },
525};
526
527static struct mv_xor_platform_data kirkwood_xor11_data = {
528 .shared = &kirkwood_xor1_shared,
529 .hw_id = 1,
530 .pool_size = PAGE_SIZE,
531};
532
533static struct platform_device kirkwood_xor11_channel = {
534 .name = MV_XOR_NAME,
535 .id = 3,
536 .num_resources = ARRAY_SIZE(kirkwood_xor11_resources),
537 .resource = kirkwood_xor11_resources,
538 .dev = {
539 .dma_mask = &kirkwood_xor_dmamask,
540 .coherent_dma_mask = DMA_64BIT_MASK,
541 .platform_data = (void *)&kirkwood_xor11_data,
542 },
543};
544
545void __init kirkwood_xor1_init(void)
546{
547 platform_device_register(&kirkwood_xor1_shared);
548
549 /*
550 * two engines can't do memset simultaneously, this limitation
551 * satisfied by removing memset support from one of the engines.
552 */
553 dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
554 dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
555 platform_device_register(&kirkwood_xor10_channel);
556
557 dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
558 dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
559 dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
560 platform_device_register(&kirkwood_xor11_channel);
561}
562
563
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564/*****************************************************************************
565 * Time handling
566 ****************************************************************************/
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567int kirkwood_tclk;
568
569int __init kirkwood_find_tclk(void)
570{
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571 u32 dev, rev;
572
573 kirkwood_pcie_id(&dev, &rev);
574 if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
575 return 200000000;
576
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577 return 166666667;
578}
579
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580static void kirkwood_timer_init(void)
581{
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582 kirkwood_tclk = kirkwood_find_tclk();
583 orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
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584}
585
586struct sys_timer kirkwood_timer = {
587 .init = kirkwood_timer_init,
588};
589
590
591/*****************************************************************************
592 * General
593 ****************************************************************************/
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594/*
595 * Identify device ID and revision.
596 */
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597static char * __init kirkwood_id(void)
598{
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599 u32 dev, rev;
600
601 kirkwood_pcie_id(&dev, &rev);
602
603 if (dev == MV88F6281_DEV_ID) {
604 if (rev == MV88F6281_REV_Z0)
605 return "MV88F6281-Z0";
606 else if (rev == MV88F6281_REV_A0)
607 return "MV88F6281-A0";
608 else
609 return "MV88F6281-Rev-Unsupported";
610 } else if (dev == MV88F6192_DEV_ID) {
611 if (rev == MV88F6192_REV_Z0)
612 return "MV88F6192-Z0";
613 else if (rev == MV88F6192_REV_A0)
614 return "MV88F6192-A0";
615 else
616 return "MV88F6192-Rev-Unsupported";
617 } else if (dev == MV88F6180_DEV_ID) {
618 if (rev == MV88F6180_REV_A0)
619 return "MV88F6180-Rev-A0";
620 else
621 return "MV88F6180-Rev-Unsupported";
622 } else {
623 return "Device-Unknown";
651c74c7 624 }
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625}
626
4360bb41 627static void __init kirkwood_l2_init(void)
13387603 628{
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629#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
630 writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
631 feroceon_l2_init(1);
632#else
633 writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
634 feroceon_l2_init(0);
635#endif
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636}
637
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638void __init kirkwood_init(void)
639{
640 printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
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641 kirkwood_id(), kirkwood_tclk);
642 kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
643 kirkwood_spi_plat_data.tclk = kirkwood_tclk;
644 kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
645 kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
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646
647 kirkwood_setup_cpu_mbus();
648
649#ifdef CONFIG_CACHE_FEROCEON_L2
4360bb41 650 kirkwood_l2_init();
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651#endif
652}