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dsa: add switch chip cascading support
[mirror_ubuntu-jammy-kernel.git] / arch / arm / mach-orion5x / common.c
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585cf175 1/*
9dd0b194 2 * arch/arm/mach-orion5x/common.c
585cf175 3 *
9dd0b194 4 * Core functions for Marvell Orion 5x SoCs
585cf175
TP
5 *
6 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
7 *
159ffb3a
LB
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without any
585cf175
TP
10 * warranty of any kind, whether express or implied.
11 */
12
13#include <linux/kernel.h>
14#include <linux/init.h>
ca26f7d3
TP
15#include <linux/platform_device.h>
16#include <linux/serial_8250.h>
83b6d822 17#include <linux/mbus.h>
e07c9d85 18#include <linux/mv643xx_eth.h>
144aa3db 19#include <linux/mv643xx_i2c.h>
15a32632 20#include <linux/ata_platform.h>
d323ade1 21#include <linux/spi/orion_spi.h>
dcf1cece 22#include <net/dsa.h>
585cf175 23#include <asm/page.h>
be73a347 24#include <asm/setup.h>
c67de5b3 25#include <asm/timex.h>
be73a347 26#include <asm/mach/arch.h>
585cf175 27#include <asm/mach/map.h>
2bac1de2 28#include <asm/mach/time.h>
a09e64fb
RK
29#include <mach/hardware.h>
30#include <mach/orion5x.h>
6f088f1d 31#include <plat/ehci-orion.h>
1d5a1a6e 32#include <plat/mv_xor.h>
6f088f1d
LB
33#include <plat/orion_nand.h>
34#include <plat/time.h>
585cf175
TP
35#include "common.h"
36
37/*****************************************************************************
38 * I/O Address Mapping
39 ****************************************************************************/
9dd0b194 40static struct map_desc orion5x_io_desc[] __initdata = {
585cf175 41 {
9dd0b194
LB
42 .virtual = ORION5X_REGS_VIRT_BASE,
43 .pfn = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
44 .length = ORION5X_REGS_SIZE,
e7068ad3
LB
45 .type = MT_DEVICE,
46 }, {
9dd0b194
LB
47 .virtual = ORION5X_PCIE_IO_VIRT_BASE,
48 .pfn = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
49 .length = ORION5X_PCIE_IO_SIZE,
e7068ad3
LB
50 .type = MT_DEVICE,
51 }, {
9dd0b194
LB
52 .virtual = ORION5X_PCI_IO_VIRT_BASE,
53 .pfn = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
54 .length = ORION5X_PCI_IO_SIZE,
e7068ad3
LB
55 .type = MT_DEVICE,
56 }, {
9dd0b194
LB
57 .virtual = ORION5X_PCIE_WA_VIRT_BASE,
58 .pfn = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
59 .length = ORION5X_PCIE_WA_SIZE,
e7068ad3 60 .type = MT_DEVICE,
585cf175
TP
61 },
62};
63
9dd0b194 64void __init orion5x_map_io(void)
585cf175 65{
9dd0b194 66 iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
585cf175 67}
c67de5b3 68
044f6c7c 69
ca26f7d3 70/*****************************************************************************
044f6c7c 71 * EHCI
ca26f7d3 72 ****************************************************************************/
044f6c7c
LB
73static struct orion_ehci_data orion5x_ehci_data = {
74 .dram = &orion5x_mbus_dram_info,
fb6f5529 75 .phy_version = EHCI_PHY_ORION,
ca26f7d3
TP
76};
77
044f6c7c 78static u64 ehci_dmamask = 0xffffffffUL;
ca26f7d3 79
ca26f7d3 80
044f6c7c
LB
81/*****************************************************************************
82 * EHCI0
83 ****************************************************************************/
9dd0b194 84static struct resource orion5x_ehci0_resources[] = {
ca26f7d3 85 {
9dd0b194 86 .start = ORION5X_USB0_PHYS_BASE,
994cab84 87 .end = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
ca26f7d3 88 .flags = IORESOURCE_MEM,
e7068ad3 89 }, {
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LB
90 .start = IRQ_ORION5X_USB0_CTRL,
91 .end = IRQ_ORION5X_USB0_CTRL,
ca26f7d3
TP
92 .flags = IORESOURCE_IRQ,
93 },
94};
95
9dd0b194 96static struct platform_device orion5x_ehci0 = {
ca26f7d3
TP
97 .name = "orion-ehci",
98 .id = 0,
99 .dev = {
100 .dma_mask = &ehci_dmamask,
101 .coherent_dma_mask = 0xffffffff,
9dd0b194 102 .platform_data = &orion5x_ehci_data,
ca26f7d3 103 },
9dd0b194
LB
104 .resource = orion5x_ehci0_resources,
105 .num_resources = ARRAY_SIZE(orion5x_ehci0_resources),
ca26f7d3
TP
106};
107
044f6c7c
LB
108void __init orion5x_ehci0_init(void)
109{
110 platform_device_register(&orion5x_ehci0);
111}
112
113
114/*****************************************************************************
115 * EHCI1
116 ****************************************************************************/
117static struct resource orion5x_ehci1_resources[] = {
118 {
119 .start = ORION5X_USB1_PHYS_BASE,
120 .end = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
121 .flags = IORESOURCE_MEM,
122 }, {
123 .start = IRQ_ORION5X_USB1_CTRL,
124 .end = IRQ_ORION5X_USB1_CTRL,
125 .flags = IORESOURCE_IRQ,
126 },
127};
128
9dd0b194 129static struct platform_device orion5x_ehci1 = {
ca26f7d3
TP
130 .name = "orion-ehci",
131 .id = 1,
132 .dev = {
133 .dma_mask = &ehci_dmamask,
134 .coherent_dma_mask = 0xffffffff,
9dd0b194 135 .platform_data = &orion5x_ehci_data,
ca26f7d3 136 },
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LB
137 .resource = orion5x_ehci1_resources,
138 .num_resources = ARRAY_SIZE(orion5x_ehci1_resources),
ca26f7d3
TP
139};
140
044f6c7c
LB
141void __init orion5x_ehci1_init(void)
142{
143 platform_device_register(&orion5x_ehci1);
144}
145
146
e07c9d85 147/*****************************************************************************
044f6c7c 148 * GigE
e07c9d85 149 ****************************************************************************/
d236f5a5
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150struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
151 .dram = &orion5x_mbus_dram_info,
152};
153
9dd0b194 154static struct resource orion5x_eth_shared_resources[] = {
e07c9d85 155 {
9dd0b194
LB
156 .start = ORION5X_ETH_PHYS_BASE + 0x2000,
157 .end = ORION5X_ETH_PHYS_BASE + 0x3fff,
e07c9d85 158 .flags = IORESOURCE_MEM,
eeff6d86
LB
159 }, {
160 .start = IRQ_ORION5X_ETH_ERR,
161 .end = IRQ_ORION5X_ETH_ERR,
162 .flags = IORESOURCE_IRQ,
e07c9d85
TP
163 },
164};
165
9dd0b194 166static struct platform_device orion5x_eth_shared = {
e07c9d85
TP
167 .name = MV643XX_ETH_SHARED_NAME,
168 .id = 0,
d236f5a5
LB
169 .dev = {
170 .platform_data = &orion5x_eth_shared_data,
171 },
eeff6d86 172 .num_resources = ARRAY_SIZE(orion5x_eth_shared_resources),
9dd0b194 173 .resource = orion5x_eth_shared_resources,
e07c9d85
TP
174};
175
9dd0b194 176static struct resource orion5x_eth_resources[] = {
e07c9d85
TP
177 {
178 .name = "eth irq",
9dd0b194
LB
179 .start = IRQ_ORION5X_ETH_SUM,
180 .end = IRQ_ORION5X_ETH_SUM,
e07c9d85 181 .flags = IORESOURCE_IRQ,
e7068ad3 182 },
e07c9d85
TP
183};
184
9dd0b194 185static struct platform_device orion5x_eth = {
e07c9d85
TP
186 .name = MV643XX_ETH_NAME,
187 .id = 0,
188 .num_resources = 1,
9dd0b194 189 .resource = orion5x_eth_resources,
e07c9d85
TP
190};
191
9dd0b194 192void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
e07c9d85 193{
fa3959f4 194 eth_data->shared = &orion5x_eth_shared;
9dd0b194 195 orion5x_eth.dev.platform_data = eth_data;
fa3959f4 196
9dd0b194
LB
197 platform_device_register(&orion5x_eth_shared);
198 platform_device_register(&orion5x_eth);
e07c9d85
TP
199}
200
044f6c7c 201
dcf1cece
LB
202/*****************************************************************************
203 * Ethernet switch
204 ****************************************************************************/
205static struct resource orion5x_switch_resources[] = {
206 {
207 .start = 0,
208 .end = 0,
209 .flags = IORESOURCE_IRQ,
210 },
211};
212
213static struct platform_device orion5x_switch_device = {
214 .name = "dsa",
215 .id = 0,
216 .num_resources = 0,
217 .resource = orion5x_switch_resources,
218};
219
220void __init orion5x_eth_switch_init(struct dsa_platform_data *d, int irq)
221{
e84665c9
LB
222 int i;
223
dcf1cece
LB
224 if (irq != NO_IRQ) {
225 orion5x_switch_resources[0].start = irq;
226 orion5x_switch_resources[0].end = irq;
227 orion5x_switch_device.num_resources = 1;
228 }
229
dcf1cece 230 d->netdev = &orion5x_eth.dev;
e84665c9
LB
231 for (i = 0; i < d->nr_chips; i++)
232 d->chip[i].mii_bus = &orion5x_eth_shared.dev;
dcf1cece
LB
233 orion5x_switch_device.dev.platform_data = d;
234
235 platform_device_register(&orion5x_switch_device);
236}
237
238
144aa3db 239/*****************************************************************************
044f6c7c 240 * I2C
144aa3db 241 ****************************************************************************/
9dd0b194 242static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
144aa3db
HVR
243 .freq_m = 8, /* assumes 166 MHz TCLK */
244 .freq_n = 3,
245 .timeout = 1000, /* Default timeout of 1 second */
246};
247
9dd0b194 248static struct resource orion5x_i2c_resources[] = {
144aa3db 249 {
e7068ad3
LB
250 .name = "i2c base",
251 .start = I2C_PHYS_BASE,
044f6c7c 252 .end = I2C_PHYS_BASE + 0x1f,
e7068ad3
LB
253 .flags = IORESOURCE_MEM,
254 }, {
255 .name = "i2c irq",
256 .start = IRQ_ORION5X_I2C,
257 .end = IRQ_ORION5X_I2C,
258 .flags = IORESOURCE_IRQ,
144aa3db
HVR
259 },
260};
261
9dd0b194 262static struct platform_device orion5x_i2c = {
144aa3db
HVR
263 .name = MV64XXX_I2C_CTLR_NAME,
264 .id = 0,
9dd0b194
LB
265 .num_resources = ARRAY_SIZE(orion5x_i2c_resources),
266 .resource = orion5x_i2c_resources,
144aa3db 267 .dev = {
e7068ad3 268 .platform_data = &orion5x_i2c_pdata,
144aa3db
HVR
269 },
270};
271
044f6c7c
LB
272void __init orion5x_i2c_init(void)
273{
274 platform_device_register(&orion5x_i2c);
275}
276
277
f244baa3 278/*****************************************************************************
044f6c7c 279 * SATA
f244baa3 280 ****************************************************************************/
9dd0b194 281static struct resource orion5x_sata_resources[] = {
f244baa3 282 {
e7068ad3
LB
283 .name = "sata base",
284 .start = ORION5X_SATA_PHYS_BASE,
285 .end = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
286 .flags = IORESOURCE_MEM,
287 }, {
288 .name = "sata irq",
289 .start = IRQ_ORION5X_SATA,
290 .end = IRQ_ORION5X_SATA,
291 .flags = IORESOURCE_IRQ,
292 },
f244baa3
SB
293};
294
9dd0b194 295static struct platform_device orion5x_sata = {
e7068ad3
LB
296 .name = "sata_mv",
297 .id = 0,
f244baa3
SB
298 .dev = {
299 .coherent_dma_mask = 0xffffffff,
300 },
e7068ad3
LB
301 .num_resources = ARRAY_SIZE(orion5x_sata_resources),
302 .resource = orion5x_sata_resources,
f244baa3
SB
303};
304
9dd0b194 305void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
f244baa3 306{
9dd0b194
LB
307 sata_data->dram = &orion5x_mbus_dram_info;
308 orion5x_sata.dev.platform_data = sata_data;
309 platform_device_register(&orion5x_sata);
f244baa3
SB
310}
311
044f6c7c 312
d323ade1
LB
313/*****************************************************************************
314 * SPI
315 ****************************************************************************/
316static struct orion_spi_info orion5x_spi_plat_data = {
c0e19363
NP
317 .tclk = 0,
318 .enable_clock_fix = 1,
d323ade1
LB
319};
320
321static struct resource orion5x_spi_resources[] = {
322 {
323 .name = "spi base",
324 .start = SPI_PHYS_BASE,
325 .end = SPI_PHYS_BASE + 0x1f,
326 .flags = IORESOURCE_MEM,
327 },
328};
329
330static struct platform_device orion5x_spi = {
331 .name = "orion_spi",
332 .id = 0,
333 .dev = {
334 .platform_data = &orion5x_spi_plat_data,
335 },
336 .num_resources = ARRAY_SIZE(orion5x_spi_resources),
337 .resource = orion5x_spi_resources,
338};
339
340void __init orion5x_spi_init()
341{
342 platform_device_register(&orion5x_spi);
343}
344
345
2bac1de2 346/*****************************************************************************
044f6c7c
LB
347 * UART0
348 ****************************************************************************/
349static struct plat_serial8250_port orion5x_uart0_data[] = {
350 {
351 .mapbase = UART0_PHYS_BASE,
352 .membase = (char *)UART0_VIRT_BASE,
353 .irq = IRQ_ORION5X_UART0,
354 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
355 .iotype = UPIO_MEM,
356 .regshift = 2,
ebe35aff 357 .uartclk = 0,
044f6c7c
LB
358 }, {
359 },
360};
361
362static struct resource orion5x_uart0_resources[] = {
363 {
364 .start = UART0_PHYS_BASE,
365 .end = UART0_PHYS_BASE + 0xff,
366 .flags = IORESOURCE_MEM,
367 }, {
368 .start = IRQ_ORION5X_UART0,
369 .end = IRQ_ORION5X_UART0,
370 .flags = IORESOURCE_IRQ,
371 },
372};
373
374static struct platform_device orion5x_uart0 = {
375 .name = "serial8250",
376 .id = PLAT8250_DEV_PLATFORM,
377 .dev = {
378 .platform_data = orion5x_uart0_data,
379 },
380 .resource = orion5x_uart0_resources,
381 .num_resources = ARRAY_SIZE(orion5x_uart0_resources),
382};
383
384void __init orion5x_uart0_init(void)
385{
386 platform_device_register(&orion5x_uart0);
387}
388
389
390/*****************************************************************************
391 * UART1
2bac1de2 392 ****************************************************************************/
044f6c7c
LB
393static struct plat_serial8250_port orion5x_uart1_data[] = {
394 {
395 .mapbase = UART1_PHYS_BASE,
396 .membase = (char *)UART1_VIRT_BASE,
397 .irq = IRQ_ORION5X_UART1,
398 .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
399 .iotype = UPIO_MEM,
400 .regshift = 2,
ebe35aff 401 .uartclk = 0,
044f6c7c
LB
402 }, {
403 },
404};
405
406static struct resource orion5x_uart1_resources[] = {
407 {
408 .start = UART1_PHYS_BASE,
409 .end = UART1_PHYS_BASE + 0xff,
410 .flags = IORESOURCE_MEM,
411 }, {
412 .start = IRQ_ORION5X_UART1,
413 .end = IRQ_ORION5X_UART1,
414 .flags = IORESOURCE_IRQ,
415 },
416};
417
418static struct platform_device orion5x_uart1 = {
419 .name = "serial8250",
420 .id = PLAT8250_DEV_PLATFORM1,
421 .dev = {
422 .platform_data = orion5x_uart1_data,
423 },
424 .resource = orion5x_uart1_resources,
425 .num_resources = ARRAY_SIZE(orion5x_uart1_resources),
426};
427
428void __init orion5x_uart1_init(void)
429{
430 platform_device_register(&orion5x_uart1);
431}
2bac1de2 432
044f6c7c 433
1d5a1a6e
SB
434/*****************************************************************************
435 * XOR engine
436 ****************************************************************************/
437static struct resource orion5x_xor_shared_resources[] = {
438 {
439 .name = "xor low",
440 .start = ORION5X_XOR_PHYS_BASE,
441 .end = ORION5X_XOR_PHYS_BASE + 0xff,
442 .flags = IORESOURCE_MEM,
443 }, {
444 .name = "xor high",
445 .start = ORION5X_XOR_PHYS_BASE + 0x200,
446 .end = ORION5X_XOR_PHYS_BASE + 0x2ff,
447 .flags = IORESOURCE_MEM,
448 },
449};
450
451static struct platform_device orion5x_xor_shared = {
452 .name = MV_XOR_SHARED_NAME,
453 .id = 0,
454 .num_resources = ARRAY_SIZE(orion5x_xor_shared_resources),
455 .resource = orion5x_xor_shared_resources,
456};
457
458static u64 orion5x_xor_dmamask = DMA_32BIT_MASK;
459
460static struct resource orion5x_xor0_resources[] = {
461 [0] = {
462 .start = IRQ_ORION5X_XOR0,
463 .end = IRQ_ORION5X_XOR0,
464 .flags = IORESOURCE_IRQ,
465 },
466};
467
468static struct mv_xor_platform_data orion5x_xor0_data = {
469 .shared = &orion5x_xor_shared,
470 .hw_id = 0,
471 .pool_size = PAGE_SIZE,
472};
473
474static struct platform_device orion5x_xor0_channel = {
475 .name = MV_XOR_NAME,
476 .id = 0,
477 .num_resources = ARRAY_SIZE(orion5x_xor0_resources),
478 .resource = orion5x_xor0_resources,
479 .dev = {
480 .dma_mask = &orion5x_xor_dmamask,
481 .coherent_dma_mask = DMA_64BIT_MASK,
482 .platform_data = (void *)&orion5x_xor0_data,
483 },
484};
485
486static struct resource orion5x_xor1_resources[] = {
487 [0] = {
488 .start = IRQ_ORION5X_XOR1,
489 .end = IRQ_ORION5X_XOR1,
490 .flags = IORESOURCE_IRQ,
491 },
492};
493
494static struct mv_xor_platform_data orion5x_xor1_data = {
495 .shared = &orion5x_xor_shared,
496 .hw_id = 1,
497 .pool_size = PAGE_SIZE,
498};
499
500static struct platform_device orion5x_xor1_channel = {
501 .name = MV_XOR_NAME,
502 .id = 1,
503 .num_resources = ARRAY_SIZE(orion5x_xor1_resources),
504 .resource = orion5x_xor1_resources,
505 .dev = {
506 .dma_mask = &orion5x_xor_dmamask,
507 .coherent_dma_mask = DMA_64BIT_MASK,
508 .platform_data = (void *)&orion5x_xor1_data,
509 },
510};
511
512void __init orion5x_xor_init(void)
513{
514 platform_device_register(&orion5x_xor_shared);
515
516 /*
517 * two engines can't do memset simultaneously, this limitation
518 * satisfied by removing memset support from one of the engines.
519 */
520 dma_cap_set(DMA_MEMCPY, orion5x_xor0_data.cap_mask);
521 dma_cap_set(DMA_XOR, orion5x_xor0_data.cap_mask);
522 platform_device_register(&orion5x_xor0_channel);
523
524 dma_cap_set(DMA_MEMCPY, orion5x_xor1_data.cap_mask);
525 dma_cap_set(DMA_MEMSET, orion5x_xor1_data.cap_mask);
526 dma_cap_set(DMA_XOR, orion5x_xor1_data.cap_mask);
527 platform_device_register(&orion5x_xor1_channel);
528}
529
530
044f6c7c
LB
531/*****************************************************************************
532 * Time handling
533 ****************************************************************************/
ebe35aff
LB
534int orion5x_tclk;
535
536int __init orion5x_find_tclk(void)
537{
d323ade1
LB
538 u32 dev, rev;
539
540 orion5x_pcie_id(&dev, &rev);
541 if (dev == MV88F6183_DEV_ID &&
542 (readl(MPP_RESET_SAMPLE) & 0x00000200) == 0)
543 return 133333333;
544
ebe35aff
LB
545 return 166666667;
546}
547
9dd0b194 548static void orion5x_timer_init(void)
2bac1de2 549{
ebe35aff
LB
550 orion5x_tclk = orion5x_find_tclk();
551 orion_time_init(IRQ_ORION5X_BRIDGE, orion5x_tclk);
2bac1de2
LB
552}
553
9dd0b194 554struct sys_timer orion5x_timer = {
e7068ad3 555 .init = orion5x_timer_init,
2bac1de2
LB
556};
557
044f6c7c 558
c67de5b3
TP
559/*****************************************************************************
560 * General
561 ****************************************************************************/
c67de5b3 562/*
b46926bb 563 * Identify device ID and rev from PCIe configuration header space '0'.
c67de5b3 564 */
9dd0b194 565static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
c67de5b3 566{
9dd0b194 567 orion5x_pcie_id(dev, rev);
c67de5b3
TP
568
569 if (*dev == MV88F5281_DEV_ID) {
570 if (*rev == MV88F5281_REV_D2) {
571 *dev_name = "MV88F5281-D2";
572 } else if (*rev == MV88F5281_REV_D1) {
573 *dev_name = "MV88F5281-D1";
ce72e36e
LB
574 } else if (*rev == MV88F5281_REV_D0) {
575 *dev_name = "MV88F5281-D0";
c67de5b3
TP
576 } else {
577 *dev_name = "MV88F5281-Rev-Unsupported";
578 }
579 } else if (*dev == MV88F5182_DEV_ID) {
580 if (*rev == MV88F5182_REV_A2) {
581 *dev_name = "MV88F5182-A2";
582 } else {
583 *dev_name = "MV88F5182-Rev-Unsupported";
584 }
c9e3de94
HVR
585 } else if (*dev == MV88F5181_DEV_ID) {
586 if (*rev == MV88F5181_REV_B1) {
587 *dev_name = "MV88F5181-Rev-B1";
d2b2a6bb
LB
588 } else if (*rev == MV88F5181L_REV_A1) {
589 *dev_name = "MV88F5181L-Rev-A1";
c9e3de94 590 } else {
d2b2a6bb 591 *dev_name = "MV88F5181(L)-Rev-Unsupported";
c9e3de94 592 }
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593 } else if (*dev == MV88F6183_DEV_ID) {
594 if (*rev == MV88F6183_REV_B0) {
595 *dev_name = "MV88F6183-Rev-B0";
596 } else {
597 *dev_name = "MV88F6183-Rev-Unsupported";
598 }
c67de5b3
TP
599 } else {
600 *dev_name = "Device-Unknown";
601 }
602}
603
9dd0b194 604void __init orion5x_init(void)
c67de5b3
TP
605{
606 char *dev_name;
607 u32 dev, rev;
608
9dd0b194 609 orion5x_id(&dev, &rev, &dev_name);
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LB
610 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
611
612 orion5x_eth_shared_data.t_clk = orion5x_tclk;
d323ade1 613 orion5x_spi_plat_data.tclk = orion5x_tclk;
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LB
614 orion5x_uart0_data[0].uartclk = orion5x_tclk;
615 orion5x_uart1_data[0].uartclk = orion5x_tclk;
c67de5b3
TP
616
617 /*
618 * Setup Orion address map
619 */
9dd0b194 620 orion5x_setup_cpu_mbus_bridge();
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LB
621
622 /*
623 * Don't issue "Wait for Interrupt" instruction if we are
624 * running on D0 5281 silicon.
625 */
626 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
627 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
628 disable_hlt();
629 }
c67de5b3 630}
be73a347
GL
631
632/*
633 * Many orion-based systems have buggy bootloader implementations.
634 * This is a common fixup for bogus memory tags.
635 */
636void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
637 char **from, struct meminfo *meminfo)
638{
639 for (; t->hdr.size; t = tag_next(t))
640 if (t->hdr.tag == ATAG_MEM &&
641 (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
642 t->u.mem.start & ~PAGE_MASK)) {
643 printk(KERN_WARNING
644 "Clearing invalid memory bank %dKB@0x%08x\n",
645 t->u.mem.size / 1024, t->u.mem.start);
646 t->hdr.tag = 0;
647 }
648}