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linux/generic: fix "rm: can't remove 'xyz': Directory not empty" symbolic link and...
[openwrt.git] / target / linux / atheros / patches-2.6.30 / 100-board.patch
1 --- a/arch/mips/Kconfig
2 +++ b/arch/mips/Kconfig
3 @@ -60,6 +60,19 @@ config BCM47XX
4 help
5 Support for BCM47XX based boards
6
7 +config ATHEROS_AR231X
8 + bool "Atheros 231x/531x SoC support"
9 + select CEVT_R4K
10 + select CSRC_R4K
11 + select DMA_NONCOHERENT
12 + select IRQ_CPU
13 + select SYS_HAS_CPU_MIPS32_R1
14 + select SYS_SUPPORTS_BIG_ENDIAN
15 + select SYS_SUPPORTS_32BIT_KERNEL
16 + select GENERIC_GPIO
17 + help
18 + Support for AR231x and AR531x based boards
19 +
20 config MIPS_COBALT
21 bool "Cobalt Server"
22 select CEVT_R4K
23 @@ -633,6 +646,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
24
25 endchoice
26
27 +source "arch/mips/ar231x/Kconfig"
28 source "arch/mips/alchemy/Kconfig"
29 source "arch/mips/basler/excite/Kconfig"
30 source "arch/mips/jazz/Kconfig"
31 --- a/arch/mips/Makefile
32 +++ b/arch/mips/Makefile
33 @@ -283,6 +283,13 @@ libs-$(CONFIG_MIPS_XXS1500) += arch/mips
34 load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
35
36 #
37 +# Atheros AR5312/AR2312 WiSoC
38 +#
39 +core-$(CONFIG_ATHEROS_AR231X) += arch/mips/ar231x/
40 +cflags-$(CONFIG_ATHEROS_AR231X) += -I$(srctree)/arch/mips/include/asm/mach-ar231x
41 +load-$(CONFIG_ATHEROS_AR231X) += 0xffffffff80041000
42 +
43 +#
44 # Cobalt Server
45 #
46 core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
47 --- /dev/null
48 +++ b/arch/mips/ar231x/Kconfig
49 @@ -0,0 +1,17 @@
50 +config ATHEROS_AR5312
51 + bool "Atheros 5312/2312+ support"
52 + depends on ATHEROS_AR231X
53 + default y
54 +
55 +config ATHEROS_AR2315
56 + bool "Atheros 2315+ support"
57 + depends on ATHEROS_AR231X
58 + select DMA_NONCOHERENT
59 + select CEVT_R4K
60 + select CSRC_R4K
61 + select IRQ_CPU
62 + select SYS_HAS_CPU_MIPS32_R1
63 + select SYS_SUPPORTS_32BIT_KERNEL
64 + select SYS_SUPPORTS_BIG_ENDIAN
65 + select GENERIC_GPIO
66 + default y
67 --- /dev/null
68 +++ b/arch/mips/ar231x/Makefile
69 @@ -0,0 +1,13 @@
70 +#
71 +# This file is subject to the terms and conditions of the GNU General Public
72 +# License. See the file "COPYING" in the main directory of this archive
73 +# for more details.
74 +#
75 +# Copyright (C) 2006 FON Technology, SL.
76 +# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
77 +# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
78 +#
79 +
80 +obj-y += board.o prom.o devices.o
81 +obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
82 +obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
83 --- /dev/null
84 +++ b/arch/mips/ar231x/board.c
85 @@ -0,0 +1,251 @@
86 +/*
87 + * This file is subject to the terms and conditions of the GNU General Public
88 + * License. See the file "COPYING" in the main directory of this archive
89 + * for more details.
90 + *
91 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
92 + * Copyright (C) 2006 FON Technology, SL.
93 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
94 + * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
95 + */
96 +
97 +#include <linux/autoconf.h>
98 +#include <linux/init.h>
99 +#include <linux/module.h>
100 +#include <linux/types.h>
101 +#include <linux/string.h>
102 +#include <linux/platform_device.h>
103 +#include <linux/kernel.h>
104 +#include <linux/random.h>
105 +#include <linux/etherdevice.h>
106 +#include <asm/irq_cpu.h>
107 +#include <asm/reboot.h>
108 +#include <asm/io.h>
109 +
110 +#include <ar231x_platform.h>
111 +#include "devices.h"
112 +#include "ar5312.h"
113 +#include "ar2315.h"
114 +
115 +void (*ar231x_irq_dispatch)(void);
116 +
117 +static inline bool
118 +check_radio_magic(u8 *addr)
119 +{
120 + addr += 0x7a; /* offset for flash magic */
121 + if ((addr[0] == 0x5a) && (addr[1] == 0xa5)) {
122 + return 1;
123 + }
124 + return 0;
125 +}
126 +
127 +static inline bool
128 +check_board_data(u8 *flash_limit, u8 *addr, bool broken)
129 +{
130 + /* config magic found */
131 + if (*((u32 *)addr) == AR531X_BD_MAGIC)
132 + return 1;
133 +
134 + if (!broken)
135 + return 0;
136 +
137 + if (check_radio_magic(addr + 0xf8))
138 + ar231x_board.radio = addr + 0xf8;
139 + if ((addr < flash_limit + 0x10000) &&
140 + check_radio_magic(addr + 0x10000))
141 + ar231x_board.radio = addr + 0x10000;
142 +
143 + if (ar231x_board.radio) {
144 + /* broken board data detected, use radio data to find the offset,
145 + * user will fix this */
146 + return 1;
147 + }
148 + return 0;
149 +}
150 +
151 +static u8 *
152 +find_board_config(u8 *flash_limit, bool broken)
153 +{
154 + u8 *addr;
155 + int found = 0;
156 +
157 + for (addr = flash_limit - 0x1000;
158 + addr >= flash_limit - 0x30000;
159 + addr -= 0x1000) {
160 +
161 + if (check_board_data(flash_limit, addr, broken)) {
162 + found = 1;
163 + break;
164 + }
165 + }
166 +
167 + if (!found)
168 + addr = NULL;
169 +
170 + return addr;
171 +}
172 +
173 +static u8 *
174 +find_radio_config(u8 *flash_limit, u8 *board_config)
175 +{
176 + int found;
177 + u8 *radio_config;
178 +
179 + /*
180 + * Now find the start of Radio Configuration data, using heuristics:
181 + * Search forward from Board Configuration data by 0x1000 bytes
182 + * at a time until we find non-0xffffffff.
183 + */
184 + found = 0;
185 + for (radio_config = board_config + 0x1000;
186 + (radio_config < flash_limit);
187 + radio_config += 0x1000) {
188 + if ((*(u32 *)radio_config != 0xffffffff) &&
189 + check_radio_magic(radio_config)) {
190 + found = 1;
191 + break;
192 + }
193 + }
194 +
195 + /* AR2316 relocates radio config to new location */
196 + if (!found) {
197 + for (radio_config = board_config + 0xf8;
198 + (radio_config < flash_limit - 0x1000 + 0xf8);
199 + radio_config += 0x1000) {
200 + if ((*(u32 *)radio_config != 0xffffffff) &&
201 + check_radio_magic(radio_config)) {
202 + found = 1;
203 + break;
204 + }
205 + }
206 + }
207 +
208 + if (!found) {
209 + printk("Could not find Radio Configuration data\n");
210 + radio_config = 0;
211 + }
212 +
213 + return (u8 *) radio_config;
214 +}
215 +
216 +int __init
217 +ar231x_find_config(u8 *flash_limit)
218 +{
219 + struct ar231x_boarddata *config;
220 + unsigned int rcfg_size;
221 + int broken_boarddata = 0;
222 + u8 *bcfg, *rcfg;
223 + u8 *board_data;
224 + u8 *radio_data;
225 + u32 offset;
226 +
227 + ar231x_board.config = NULL;
228 + ar231x_board.radio = NULL;
229 + /* Copy the board and radio data to RAM, because accessing the mapped
230 + * memory of the flash directly after booting is not safe */
231 +
232 + /* Try to find valid board and radio data */
233 + bcfg = find_board_config(flash_limit, false);
234 +
235 + /* If that fails, try to at least find valid radio data */
236 + if (!bcfg) {
237 + bcfg = find_board_config(flash_limit, true);
238 + broken_boarddata = 1;
239 + }
240 +
241 + if (!bcfg) {
242 + printk(KERN_WARNING "WARNING: No board configuration data found!\n");
243 + return -ENODEV;
244 + }
245 +
246 + board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
247 + ar231x_board.config = (struct ar231x_boarddata *) board_data;
248 + memcpy(board_data, bcfg, 0x100);
249 + if (broken_boarddata) {
250 + printk(KERN_WARNING "WARNING: broken board data detected\n");
251 + config = ar231x_board.config;
252 + if (!memcmp(config->enet0_mac, "\x00\x00\x00\x00\x00\x00", 6)) {
253 + printk(KERN_INFO "Fixing up empty mac addresses\n");
254 + config->resetConfigGpio = 0xffff;
255 + config->sysLedGpio = 0xffff;
256 + random_ether_addr(config->wlan0_mac);
257 + config->wlan0_mac[0] &= ~0x06;
258 + random_ether_addr(config->enet0_mac);
259 + random_ether_addr(config->enet1_mac);
260 + }
261 + }
262 +
263 +
264 + /* Radio config starts 0x100 bytes after board config, regardless
265 + * of what the physical layout on the flash chip looks like */
266 +
267 + if (ar231x_board.radio)
268 + rcfg = (u8 *) ar231x_board.radio;
269 + else
270 + rcfg = find_radio_config(flash_limit, bcfg);
271 +
272 + if (!rcfg)
273 + return -ENODEV;
274 +
275 + radio_data = board_data + 0x100 + ((rcfg - bcfg) & 0xfff);
276 + ar231x_board.radio = radio_data;
277 + offset = radio_data - board_data;
278 + printk(KERN_INFO "Radio config found at offset 0x%x(0x%x)\n", rcfg - bcfg, offset);
279 + rcfg_size = BOARD_CONFIG_BUFSZ - offset;
280 + memcpy(radio_data, rcfg, rcfg_size);
281 +
282 + return 0;
283 +}
284 +
285 +static void
286 +ar231x_halt(void)
287 +{
288 + local_irq_disable();
289 + while (1);
290 +}
291 +
292 +void __init
293 +plat_mem_setup(void)
294 +{
295 + _machine_halt = ar231x_halt;
296 + pm_power_off = ar231x_halt;
297 +
298 + ar5312_plat_setup();
299 + ar2315_plat_setup();
300 +
301 + /* Disable data watchpoints */
302 + write_c0_watchlo0(0);
303 +}
304 +
305 +
306 +asmlinkage void
307 +plat_irq_dispatch(void)
308 +{
309 + ar231x_irq_dispatch();
310 +}
311 +
312 +void __init
313 +plat_time_init(void)
314 +{
315 + ar5312_time_init();
316 + ar2315_time_init();
317 +}
318 +
319 +unsigned int __cpuinit
320 +get_c0_compare_int(void)
321 +{
322 + return CP0_LEGACY_COMPARE_IRQ;
323 +}
324 +
325 +void __init
326 +arch_init_irq(void)
327 +{
328 + clear_c0_status(ST0_IM);
329 + mips_cpu_irq_init();
330 +
331 + /* Initialize interrupt controllers */
332 + ar5312_irq_init();
333 + ar2315_irq_init();
334 +}
335 +
336 +
337 --- /dev/null
338 +++ b/arch/mips/ar231x/prom.c
339 @@ -0,0 +1,37 @@
340 +/*
341 + * This file is subject to the terms and conditions of the GNU General Public
342 + * License. See the file "COPYING" in the main directory of this archive
343 + * for more details.
344 + *
345 + * Copyright MontaVista Software Inc
346 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
347 + * Copyright (C) 2006 FON Technology, SL.
348 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
349 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
350 + */
351 +
352 +/*
353 + * Prom setup file for ar531x
354 + */
355 +
356 +#include <linux/init.h>
357 +#include <linux/autoconf.h>
358 +#include <linux/kernel.h>
359 +#include <linux/string.h>
360 +#include <linux/mm.h>
361 +#include <linux/bootmem.h>
362 +
363 +#include <asm/bootinfo.h>
364 +#include <asm/addrspace.h>
365 +#include "ar5312.h"
366 +#include "ar2315.h"
367 +
368 +void __init prom_init(void)
369 +{
370 + ar5312_prom_init();
371 + ar2315_prom_init();
372 +}
373 +
374 +void __init prom_free_prom_memory(void)
375 +{
376 +}
377 --- /dev/null
378 +++ b/arch/mips/include/asm/mach-ar231x/ar231x_platform.h
379 @@ -0,0 +1,83 @@
380 +#ifndef __AR531X_PLATFORM_H
381 +#define __AR531X_PLATFORM_H
382 +
383 +/*
384 + * This is board-specific data that is stored in a "fixed" location in flash.
385 + * It is shared across operating systems, so it should not be changed lightly.
386 + * The main reason we need it is in order to extract the ethernet MAC
387 + * address(es).
388 + */
389 +struct ar231x_boarddata {
390 + u32 magic; /* board data is valid */
391 +#define AR531X_BD_MAGIC 0x35333131 /* "5311", for all 531x platforms */
392 + u16 cksum; /* checksum (starting with BD_REV 2) */
393 + u16 rev; /* revision of this struct */
394 +#define BD_REV 4
395 + char boardName[64]; /* Name of board */
396 + u16 major; /* Board major number */
397 + u16 minor; /* Board minor number */
398 + u32 flags; /* Board configuration */
399 +#define BD_ENET0 0x00000001 /* ENET0 is stuffed */
400 +#define BD_ENET1 0x00000002 /* ENET1 is stuffed */
401 +#define BD_UART1 0x00000004 /* UART1 is stuffed */
402 +#define BD_UART0 0x00000008 /* UART0 is stuffed (dma) */
403 +#define BD_RSTFACTORY 0x00000010 /* Reset factory defaults stuffed */
404 +#define BD_SYSLED 0x00000020 /* System LED stuffed */
405 +#define BD_EXTUARTCLK 0x00000040 /* External UART clock */
406 +#define BD_CPUFREQ 0x00000080 /* cpu freq is valid in nvram */
407 +#define BD_SYSFREQ 0x00000100 /* sys freq is set in nvram */
408 +#define BD_WLAN0 0x00000200 /* Enable WLAN0 */
409 +#define BD_MEMCAP 0x00000400 /* CAP SDRAM @ memCap for testing */
410 +#define BD_DISWATCHDOG 0x00000800 /* disable system watchdog */
411 +#define BD_WLAN1 0x00001000 /* Enable WLAN1 (ar5212) */
412 +#define BD_ISCASPER 0x00002000 /* FLAG for AR2312 */
413 +#define BD_WLAN0_2G_EN 0x00004000 /* FLAG for radio0_2G */
414 +#define BD_WLAN0_5G_EN 0x00008000 /* FLAG for radio0_2G */
415 +#define BD_WLAN1_2G_EN 0x00020000 /* FLAG for radio0_2G */
416 +#define BD_WLAN1_5G_EN 0x00040000 /* FLAG for radio0_2G */
417 + u16 resetConfigGpio; /* Reset factory GPIO pin */
418 + u16 sysLedGpio; /* System LED GPIO pin */
419 +
420 + u32 cpuFreq; /* CPU core frequency in Hz */
421 + u32 sysFreq; /* System frequency in Hz */
422 + u32 cntFreq; /* Calculated C0_COUNT frequency */
423 +
424 + u8 wlan0_mac[6];
425 + u8 enet0_mac[6];
426 + u8 enet1_mac[6];
427 +
428 + u16 pciId; /* Pseudo PCIID for common code */
429 + u16 memCap; /* cap bank1 in MB */
430 +
431 + /* version 3 */
432 + u8 wlan1_mac[6]; /* (ar5212) */
433 +};
434 +
435 +#define BOARD_CONFIG_BUFSZ 0x1000
436 +
437 +/*
438 + * Platform device information for the Wireless MAC
439 + */
440 +struct ar231x_board_config {
441 + u16 devid;
442 +
443 + /* board config data */
444 + struct ar231x_boarddata *config;
445 +
446 + /* radio calibration data */
447 + const char *radio;
448 +};
449 +
450 +/*
451 + * Platform device information for the Ethernet MAC
452 + */
453 +struct ar231x_eth {
454 + u32 reset_base;
455 + u32 reset_mac;
456 + u32 reset_phy;
457 + u32 phy_base;
458 + struct ar231x_board_config *config;
459 + char *macaddr;
460 +};
461 +
462 +#endif /* __AR531X_PLATFORM_H */
463 --- /dev/null
464 +++ b/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h
465 @@ -0,0 +1,84 @@
466 +/*
467 + * Atheros SoC specific CPU feature overrides
468 + *
469 + * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
470 + *
471 + * This file was derived from: include/asm-mips/cpu-features.h
472 + * Copyright (C) 2003, 2004 Ralf Baechle
473 + * Copyright (C) 2004 Maciej W. Rozycki
474 + *
475 + * This program is free software; you can redistribute it and/or modify it
476 + * under the terms of the GNU General Public License version 2 as published
477 + * by the Free Software Foundation.
478 + *
479 + */
480 +#ifndef __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
481 +#define __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
482 +
483 +/*
484 + * The ATHEROS SoCs have MIPS 4Kc/4KEc core.
485 + */
486 +#define cpu_has_tlb 1
487 +#define cpu_has_4kex 1
488 +#define cpu_has_3k_cache 0
489 +#define cpu_has_4k_cache 1
490 +#define cpu_has_tx39_cache 0
491 +#define cpu_has_sb1_cache 0
492 +#define cpu_has_fpu 0
493 +#define cpu_has_32fpr 0
494 +#define cpu_has_counter 1
495 +/* #define cpu_has_watch ? */
496 +/* #define cpu_has_divec ? */
497 +/* #define cpu_has_vce ? */
498 +/* #define cpu_has_cache_cdex_p ? */
499 +/* #define cpu_has_cache_cdex_s ? */
500 +/* #define cpu_has_prefetch ? */
501 +/* #define cpu_has_mcheck ? */
502 +#define cpu_has_ejtag 1
503 +
504 +#if !defined(CONFIG_ATHEROS_AR5312)
505 +# define cpu_has_llsc 1
506 +#else
507 +/*
508 + * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
509 + * ll/sc instructions.
510 + */
511 +# define cpu_has_llsc 0
512 +#endif
513 +
514 +#define cpu_has_mips16 0
515 +#define cpu_has_mdmx 0
516 +#define cpu_has_mips3d 0
517 +#define cpu_has_smartmips 0
518 +
519 +/* #define cpu_has_vtag_icache ? */
520 +/* #define cpu_has_dc_aliases ? */
521 +/* #define cpu_has_ic_fills_f_dc ? */
522 +/* #define cpu_has_pindexed_dcache ? */
523 +
524 +/* #define cpu_icache_snoops_remote_store ? */
525 +
526 +#define cpu_has_mips32r1 1
527 +
528 +#if !defined(CONFIG_ATHEROS_AR5312)
529 +# define cpu_has_mips32r2 1
530 +#endif
531 +
532 +#define cpu_has_mips64r1 0
533 +#define cpu_has_mips64r2 0
534 +
535 +#define cpu_has_dsp 0
536 +#define cpu_has_mipsmt 0
537 +
538 +/* #define cpu_has_nofpuex ? */
539 +#define cpu_has_64bits 0
540 +#define cpu_has_64bit_zero_reg 0
541 +#define cpu_has_64bit_gp_regs 0
542 +#define cpu_has_64bit_addresses 0
543 +
544 +/* #define cpu_has_inclusive_pcaches ? */
545 +
546 +/* #define cpu_dcache_line_size() ? */
547 +/* #define cpu_icache_line_size() ? */
548 +
549 +#endif /* __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H */
550 --- /dev/null
551 +++ b/arch/mips/include/asm/mach-ar231x/dma-coherence.h
552 @@ -0,0 +1,62 @@
553 +/*
554 + * This file is subject to the terms and conditions of the GNU General Public
555 + * License. See the file "COPYING" in the main directory of this archive
556 + * for more details.
557 + *
558 + * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
559 + * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
560 + *
561 + */
562 +#ifndef __ASM_MACH_GENERIC_DMA_COHERENCE_H
563 +#define __ASM_MACH_GENERIC_DMA_COHERENCE_H
564 +
565 +#define PCI_DMA_OFFSET 0x20000000
566 +
567 +struct device;
568 +
569 +static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
570 +{
571 + return virt_to_phys(addr) + (dev != NULL ? PCI_DMA_OFFSET : 0);
572 +}
573 +
574 +static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
575 +{
576 + return page_to_phys(page) + (dev != NULL ? PCI_DMA_OFFSET : 0);
577 +}
578 +
579 +static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
580 +{
581 + return (dma_addr > PCI_DMA_OFFSET ? dma_addr - PCI_DMA_OFFSET : dma_addr);
582 +}
583 +
584 +static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr)
585 +{
586 +}
587 +
588 +static inline int plat_dma_supported(struct device *dev, u64 mask)
589 +{
590 + return 1;
591 +}
592 +
593 +static inline void plat_extra_sync_for_device(struct device *dev)
594 +{
595 + return;
596 +}
597 +
598 +static inline int plat_dma_mapping_error(struct device *dev,
599 + dma_addr_t dma_addr)
600 +{
601 + return 0;
602 +}
603 +
604 +static inline int plat_device_is_coherent(struct device *dev)
605 +{
606 +#ifdef CONFIG_DMA_COHERENT
607 + return 1;
608 +#endif
609 +#ifdef CONFIG_DMA_NONCOHERENT
610 + return 0;
611 +#endif
612 +}
613 +
614 +#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
615 --- /dev/null
616 +++ b/arch/mips/include/asm/mach-ar231x/gpio.h
617 @@ -0,0 +1,79 @@
618 +#ifndef _ATHEROS_GPIO_H_
619 +#define _ATHEROS_GPIO_H_
620 +
621 +#include <ar231x.h>
622 +
623 +struct ar231x_gpiodev {
624 + u32 valid_mask;
625 + u32 (*get_output)(void);
626 + u32 (*set_output)(u32 mask, u32 val);
627 + u32 (*get)(void);
628 + u32 (*set)(u32 mask, u32 val);
629 +};
630 +
631 +extern const struct ar231x_gpiodev *ar231x_gpiodev;
632 +
633 +/*
634 + * Wrappers for the generic GPIO layer
635 + */
636 +
637 +static inline int gpio_direction_input(unsigned gpio) {
638 + u32 mask = 1 << gpio;
639 +
640 + if (!(ar231x_gpiodev->valid_mask & mask))
641 + return -ENXIO;
642 +
643 + ar231x_gpiodev->set_output(mask, 0);
644 + return 0;
645 +}
646 +
647 +static inline void gpio_set_value(unsigned gpio, int value) {
648 + u32 mask = 1 << gpio;
649 +
650 + if (!(ar231x_gpiodev->valid_mask & mask))
651 + return;
652 +
653 + ar231x_gpiodev->set(mask, (!!value) * mask);
654 +}
655 +
656 +static inline int gpio_direction_output(unsigned gpio, int value) {
657 + u32 mask = 1 << gpio;
658 +
659 + if (!(ar231x_gpiodev->valid_mask & mask))
660 + return -ENXIO;
661 +
662 + ar231x_gpiodev->set_output(mask, mask);
663 + ar231x_gpiodev->set(mask, (!!value) * mask);
664 + return 0;
665 +}
666 +
667 +/* Reads the gpio pin. Unchecked function */
668 +static inline int gpio_get_value(unsigned gpio) {
669 + u32 mask = 1 << gpio;
670 +
671 + if (!(ar231x_gpiodev->valid_mask & mask))
672 + return 0;
673 +
674 + return !!(ar231x_gpiodev->get() & mask);
675 +}
676 +
677 +static inline int gpio_request(unsigned gpio, const char *label) {
678 + return 0;
679 +}
680 +
681 +static inline void gpio_free(unsigned gpio) {
682 +}
683 +
684 +/* Returns IRQ to attach for gpio. Unchecked function */
685 +static inline int gpio_to_irq(unsigned gpio) {
686 + return AR531X_GPIO_IRQ(gpio);
687 +}
688 +
689 +/* Returns gpio for IRQ attached. Unchecked function */
690 +static inline int irq_to_gpio(unsigned irq) {
691 + return (irq - (AR531X_GPIO_IRQ(0)));
692 +}
693 +
694 +#include <asm-generic/gpio.h> /* cansleep wrappers */
695 +
696 +#endif
697 --- /dev/null
698 +++ b/arch/mips/include/asm/mach-ar231x/reset.h
699 @@ -0,0 +1,6 @@
700 +#ifndef __AR531X_RESET_H
701 +#define __AR531X_RESET_H
702 +
703 +void ar531x_disable_reset_button(void);
704 +
705 +#endif /* __AR531X_RESET_H */
706 --- /dev/null
707 +++ b/arch/mips/include/asm/mach-ar231x/war.h
708 @@ -0,0 +1,25 @@
709 +/*
710 + * This file is subject to the terms and conditions of the GNU General Public
711 + * License. See the file "COPYING" in the main directory of this archive
712 + * for more details.
713 + *
714 + * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
715 + */
716 +#ifndef __ASM_MIPS_MACH_ATHEROS_WAR_H
717 +#define __ASM_MIPS_MACH_ATHEROS_WAR_H
718 +
719 +#define R4600_V1_INDEX_ICACHEOP_WAR 0
720 +#define R4600_V1_HIT_CACHEOP_WAR 0
721 +#define R4600_V2_HIT_CACHEOP_WAR 0
722 +#define R5432_CP0_INTERRUPT_WAR 0
723 +#define BCM1250_M3_WAR 0
724 +#define SIBYTE_1956_WAR 0
725 +#define MIPS4K_ICACHE_REFILL_WAR 0
726 +#define MIPS_CACHE_SYNC_WAR 0
727 +#define TX49XX_ICACHE_INDEX_INV_WAR 0
728 +#define RM9000_CDEX_SMP_WAR 0
729 +#define ICACHE_REFILLS_WORKAROUND_WAR 0
730 +#define R10000_LLSC_WAR 0
731 +#define MIPS34K_MISSED_ITLB_WAR 0
732 +
733 +#endif /* __ASM_MIPS_MACH_ATHEROS_WAR_H */
734 --- /dev/null
735 +++ b/arch/mips/include/asm/mach-ar231x/ar2315_regs.h
736 @@ -0,0 +1,580 @@
737 +/*
738 + * Register definitions for AR2315+
739 + *
740 + * This file is subject to the terms and conditions of the GNU General Public
741 + * License. See the file "COPYING" in the main directory of this archive
742 + * for more details.
743 + *
744 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
745 + * Copyright (C) 2006 FON Technology, SL.
746 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
747 + * Copyright (C) 2006-2008 Felix Fietkau <nbd@openwrt.org>
748 + */
749 +
750 +#ifndef __AR2315_REG_H
751 +#define __AR2315_REG_H
752 +
753 +/*
754 + * IRQs
755 + */
756 +#define AR2315_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
757 +#define AR2315_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
758 +#define AR2315_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
759 +#define AR2315_IRQ_LCBUS_PCI MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
760 +#define AR2315_IRQ_WLAN0_POLL MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
761 +
762 +/*
763 + * Address map
764 + */
765 +#define AR2315_SPI_READ 0x08000000 /* SPI FLASH */
766 +#define AR2315_WLAN0 0xB0000000 /* Wireless MMR */
767 +#define AR2315_PCI 0xB0100000 /* PCI MMR */
768 +#define AR2315_SDRAMCTL 0xB0300000 /* SDRAM MMR */
769 +#define AR2315_LOCAL 0xB0400000 /* LOCAL BUS MMR */
770 +#define AR2315_ENET0 0xB0500000 /* ETHERNET MMR */
771 +#define AR2315_DSLBASE 0xB1000000 /* RESET CONTROL MMR */
772 +#define AR2315_UART0 0xB1100003 /* UART MMR */
773 +#define AR2315_SPI 0xB1300000 /* SPI FLASH MMR */
774 +#define AR2315_PCIEXT 0x80000000 /* pci external */
775 +
776 +/*
777 + * Reset Register
778 + */
779 +#define AR2315_COLD_RESET (AR2315_DSLBASE + 0x0000)
780 +
781 +#define AR2315_RESET_COLD_AHB 0x00000001
782 +#define AR2315_RESET_COLD_APB 0x00000002
783 +#define AR2315_RESET_COLD_CPU 0x00000004
784 +#define AR2315_RESET_COLD_CPUWARM 0x00000008
785 +#define AR2315_RESET_SYSTEM (RESET_COLD_CPU | RESET_COLD_APB | RESET_COLD_AHB) /* full system */
786 +#define AR2317_RESET_SYSTEM 0x00000010
787 +
788 +
789 +#define AR2315_RESET (AR2315_DSLBASE + 0x0004)
790 +
791 +#define AR2315_RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
792 +#define AR2315_RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BaseBand */
793 +#define AR2315_RESET_MPEGTS_RSVD 0x00000004 /* warm reset MPEG-TS */
794 +#define AR2315_RESET_PCIDMA 0x00000008 /* warm reset PCI ahb/dma */
795 +#define AR2315_RESET_MEMCTL 0x00000010 /* warm reset memory controller */
796 +#define AR2315_RESET_LOCAL 0x00000020 /* warm reset local bus */
797 +#define AR2315_RESET_I2C_RSVD 0x00000040 /* warm reset I2C bus */
798 +#define AR2315_RESET_SPI 0x00000080 /* warm reset SPI interface */
799 +#define AR2315_RESET_UART0 0x00000100 /* warm reset UART0 */
800 +#define AR2315_RESET_IR_RSVD 0x00000200 /* warm reset IR interface */
801 +#define AR2315_RESET_EPHY0 0x00000400 /* cold reset ENET0 phy */
802 +#define AR2315_RESET_ENET0 0x00000800 /* cold reset ENET0 mac */
803 +
804 +/*
805 + * AHB master arbitration control
806 + */
807 +#define AR2315_AHB_ARB_CTL (AR2315_DSLBASE + 0x0008)
808 +
809 +#define AR2315_ARB_CPU 0x00000001 /* CPU, default */
810 +#define AR2315_ARB_WLAN 0x00000002 /* WLAN */
811 +#define AR2315_ARB_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
812 +#define AR2315_ARB_LOCAL 0x00000008 /* LOCAL */
813 +#define AR2315_ARB_PCI 0x00000010 /* PCI */
814 +#define AR2315_ARB_ETHERNET 0x00000020 /* Ethernet */
815 +#define AR2315_ARB_RETRY 0x00000100 /* retry policy, debug only */
816 +
817 +/*
818 + * Config Register
819 + */
820 +#define AR2315_ENDIAN_CTL (AR2315_DSLBASE + 0x000c)
821 +
822 +#define AR2315_CONFIG_AHB 0x00000001 /* EC - AHB bridge endianess */
823 +#define AR2315_CONFIG_WLAN 0x00000002 /* WLAN byteswap */
824 +#define AR2315_CONFIG_MPEGTS_RSVD 0x00000004 /* MPEG-TS byteswap */
825 +#define AR2315_CONFIG_PCI 0x00000008 /* PCI byteswap */
826 +#define AR2315_CONFIG_MEMCTL 0x00000010 /* Memory controller endianess */
827 +#define AR2315_CONFIG_LOCAL 0x00000020 /* Local bus byteswap */
828 +#define AR2315_CONFIG_ETHERNET 0x00000040 /* Ethernet byteswap */
829 +
830 +#define AR2315_CONFIG_MERGE 0x00000200 /* CPU write buffer merge */
831 +#define AR2315_CONFIG_CPU 0x00000400 /* CPU big endian */
832 +#define AR2315_CONFIG_PCIAHB 0x00000800
833 +#define AR2315_CONFIG_PCIAHB_BRIDGE 0x00001000
834 +#define AR2315_CONFIG_SPI 0x00008000 /* SPI byteswap */
835 +#define AR2315_CONFIG_CPU_DRAM 0x00010000
836 +#define AR2315_CONFIG_CPU_PCI 0x00020000
837 +#define AR2315_CONFIG_CPU_MMR 0x00040000
838 +#define AR2315_CONFIG_BIG 0x00000400
839 +
840 +
841 +/*
842 + * NMI control
843 + */
844 +#define AR2315_NMI_CTL (AR2315_DSLBASE + 0x0010)
845 +
846 +#define AR2315_NMI_EN 1
847 +
848 +/*
849 + * Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
850 + */
851 +#define AR2315_SREV (AR2315_DSLBASE + 0x0014)
852 +
853 +#define AR2315_REV_MAJ 0x00f0
854 +#define AR2315_REV_MAJ_S 4
855 +#define AR2315_REV_MIN 0x000f
856 +#define AR2315_REV_MIN_S 0
857 +#define AR2315_REV_CHIP (AR2315_REV_MAJ|AR2315_REV_MIN)
858 +
859 +/*
860 + * Interface Enable
861 + */
862 +#define AR2315_IF_CTL (AR2315_DSLBASE + 0x0018)
863 +
864 +#define AR2315_IF_MASK 0x00000007
865 +#define AR2315_IF_DISABLED 0
866 +#define AR2315_IF_PCI 1
867 +#define AR2315_IF_TS_LOCAL 2
868 +#define AR2315_IF_ALL 3 /* only for emulation with separate pins */
869 +#define AR2315_IF_LOCAL_HOST 0x00000008
870 +#define AR2315_IF_PCI_HOST 0x00000010
871 +#define AR2315_IF_PCI_INTR 0x00000020
872 +#define AR2315_IF_PCI_CLK_MASK 0x00030000
873 +#define AR2315_IF_PCI_CLK_INPUT 0
874 +#define AR2315_IF_PCI_CLK_OUTPUT_LOW 1
875 +#define AR2315_IF_PCI_CLK_OUTPUT_CLK 2
876 +#define AR2315_IF_PCI_CLK_OUTPUT_HIGH 3
877 +#define AR2315_IF_PCI_CLK_SHIFT 16
878 +
879 +/*
880 + * APB Interrupt control
881 + */
882 +
883 +#define AR2315_ISR (AR2315_DSLBASE + 0x0020)
884 +#define AR2315_IMR (AR2315_DSLBASE + 0x0024)
885 +#define AR2315_GISR (AR2315_DSLBASE + 0x0028)
886 +
887 +#define AR2315_ISR_UART0 0x0001 /* high speed UART */
888 +#define AR2315_ISR_I2C_RSVD 0x0002 /* I2C bus */
889 +#define AR2315_ISR_SPI 0x0004 /* SPI bus */
890 +#define AR2315_ISR_AHB 0x0008 /* AHB error */
891 +#define AR2315_ISR_APB 0x0010 /* APB error */
892 +#define AR2315_ISR_TIMER 0x0020 /* timer */
893 +#define AR2315_ISR_GPIO 0x0040 /* GPIO */
894 +#define AR2315_ISR_WD 0x0080 /* watchdog */
895 +#define AR2315_ISR_IR_RSVD 0x0100 /* IR */
896 +
897 +#define AR2315_GISR_MISC 0x0001
898 +#define AR2315_GISR_WLAN0 0x0002
899 +#define AR2315_GISR_MPEGTS_RSVD 0x0004
900 +#define AR2315_GISR_LOCALPCI 0x0008
901 +#define AR2315_GISR_WMACPOLL 0x0010
902 +#define AR2315_GISR_TIMER 0x0020
903 +#define AR2315_GISR_ETHERNET 0x0040
904 +
905 +/*
906 + * Interrupt routing from IO to the processor IP bits
907 + * Define our inter mask and level
908 + */
909 +#define AR2315_INTR_MISCIO SR_IBIT3
910 +#define AR2315_INTR_WLAN0 SR_IBIT4
911 +#define AR2315_INTR_ENET0 SR_IBIT5
912 +#define AR2315_INTR_LOCALPCI SR_IBIT6
913 +#define AR2315_INTR_WMACPOLL SR_IBIT7
914 +#define AR2315_INTR_COMPARE SR_IBIT8
915 +
916 +/*
917 + * Timers
918 + */
919 +#define AR2315_TIMER (AR2315_DSLBASE + 0x0030)
920 +#define AR2315_RELOAD (AR2315_DSLBASE + 0x0034)
921 +#define AR2315_WD (AR2315_DSLBASE + 0x0038)
922 +#define AR2315_WDC (AR2315_DSLBASE + 0x003c)
923 +
924 +#define AR2315_WDC_IGNORE_EXPIRATION 0x00000000
925 +#define AR2315_WDC_NMI 0x00000001 /* NMI on watchdog */
926 +#define AR2315_WDC_RESET 0x00000002 /* reset on watchdog */
927 +
928 +/*
929 + * CPU Performance Counters
930 + */
931 +#define AR2315_PERFCNT0 (AR2315_DSLBASE + 0x0048)
932 +#define AR2315_PERFCNT1 (AR2315_DSLBASE + 0x004c)
933 +
934 +#define AR2315_PERF0_DATAHIT 0x0001 /* Count Data Cache Hits */
935 +#define AR2315_PERF0_DATAMISS 0x0002 /* Count Data Cache Misses */
936 +#define AR2315_PERF0_INSTHIT 0x0004 /* Count Instruction Cache Hits */
937 +#define AR2315_PERF0_INSTMISS 0x0008 /* Count Instruction Cache Misses */
938 +#define AR2315_PERF0_ACTIVE 0x0010 /* Count Active Processor Cycles */
939 +#define AR2315_PERF0_WBHIT 0x0020 /* Count CPU Write Buffer Hits */
940 +#define AR2315_PERF0_WBMISS 0x0040 /* Count CPU Write Buffer Misses */
941 +
942 +#define AR2315_PERF1_EB_ARDY 0x0001 /* Count EB_ARdy signal */
943 +#define AR2315_PERF1_EB_AVALID 0x0002 /* Count EB_AValid signal */
944 +#define AR2315_PERF1_EB_WDRDY 0x0004 /* Count EB_WDRdy signal */
945 +#define AR2315_PERF1_EB_RDVAL 0x0008 /* Count EB_RdVal signal */
946 +#define AR2315_PERF1_VRADDR 0x0010 /* Count valid read address cycles */
947 +#define AR2315_PERF1_VWADDR 0x0020 /* Count valid write address cycles */
948 +#define AR2315_PERF1_VWDATA 0x0040 /* Count valid write data cycles */
949 +
950 +/*
951 + * AHB Error Reporting.
952 + */
953 +#define AR2315_AHB_ERR0 (AR2315_DSLBASE + 0x0050) /* error */
954 +#define AR2315_AHB_ERR1 (AR2315_DSLBASE + 0x0054) /* haddr */
955 +#define AR2315_AHB_ERR2 (AR2315_DSLBASE + 0x0058) /* hwdata */
956 +#define AR2315_AHB_ERR3 (AR2315_DSLBASE + 0x005c) /* hrdata */
957 +#define AR2315_AHB_ERR4 (AR2315_DSLBASE + 0x0060) /* status */
958 +
959 +#define AHB_ERROR_DET 1 /* AHB Error has been detected, */
960 + /* write 1 to clear all bits in ERR0 */
961 +#define AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
962 +#define AHB_ERROR_WDT 4 /* AHB Error due to wdt instead of hresp */
963 +
964 +#define AR2315_PROCERR_HMAST 0x0000000f
965 +#define AR2315_PROCERR_HMAST_DFLT 0
966 +#define AR2315_PROCERR_HMAST_WMAC 1
967 +#define AR2315_PROCERR_HMAST_ENET 2
968 +#define AR2315_PROCERR_HMAST_PCIENDPT 3
969 +#define AR2315_PROCERR_HMAST_LOCAL 4
970 +#define AR2315_PROCERR_HMAST_CPU 5
971 +#define AR2315_PROCERR_HMAST_PCITGT 6
972 +
973 +#define AR2315_PROCERR_HMAST_S 0
974 +#define AR2315_PROCERR_HWRITE 0x00000010
975 +#define AR2315_PROCERR_HSIZE 0x00000060
976 +#define AR2315_PROCERR_HSIZE_S 5
977 +#define AR2315_PROCERR_HTRANS 0x00000180
978 +#define AR2315_PROCERR_HTRANS_S 7
979 +#define AR2315_PROCERR_HBURST 0x00000e00
980 +#define AR2315_PROCERR_HBURST_S 9
981 +
982 +/*
983 + * Clock Control
984 + */
985 +#define AR2315_PLLC_CTL (AR2315_DSLBASE + 0x0064)
986 +#define AR2315_PLLV_CTL (AR2315_DSLBASE + 0x0068)
987 +#define AR2315_CPUCLK (AR2315_DSLBASE + 0x006c)
988 +#define AR2315_AMBACLK (AR2315_DSLBASE + 0x0070)
989 +#define AR2315_SYNCCLK (AR2315_DSLBASE + 0x0074)
990 +#define AR2315_DSL_SLEEP_CTL (AR2315_DSLBASE + 0x0080)
991 +#define AR2315_DSL_SLEEP_DUR (AR2315_DSLBASE + 0x0084)
992 +
993 +/* PLLc Control fields */
994 +#define PLLC_REF_DIV_M 0x00000003
995 +#define PLLC_REF_DIV_S 0
996 +#define PLLC_FDBACK_DIV_M 0x0000007C
997 +#define PLLC_FDBACK_DIV_S 2
998 +#define PLLC_ADD_FDBACK_DIV_M 0x00000080
999 +#define PLLC_ADD_FDBACK_DIV_S 7
1000 +#define PLLC_CLKC_DIV_M 0x0001c000
1001 +#define PLLC_CLKC_DIV_S 14
1002 +#define PLLC_CLKM_DIV_M 0x00700000
1003 +#define PLLC_CLKM_DIV_S 20
1004 +
1005 +/* CPU CLK Control fields */
1006 +#define CPUCLK_CLK_SEL_M 0x00000003
1007 +#define CPUCLK_CLK_SEL_S 0
1008 +#define CPUCLK_CLK_DIV_M 0x0000000c
1009 +#define CPUCLK_CLK_DIV_S 2
1010 +
1011 +/* AMBA CLK Control fields */
1012 +#define AMBACLK_CLK_SEL_M 0x00000003
1013 +#define AMBACLK_CLK_SEL_S 0
1014 +#define AMBACLK_CLK_DIV_M 0x0000000c
1015 +#define AMBACLK_CLK_DIV_S 2
1016 +
1017 +/*
1018 + * GPIO
1019 + */
1020 +#define AR2315_GPIO_DI (AR2315_DSLBASE + 0x0088)
1021 +#define AR2315_GPIO_DO (AR2315_DSLBASE + 0x0090)
1022 +#define AR2315_GPIO_CR (AR2315_DSLBASE + 0x0098)
1023 +#define AR2315_GPIO_INT (AR2315_DSLBASE + 0x00a0)
1024 +
1025 +#define AR2315_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
1026 +#define AR2315_GPIO_CR_O(x) (1 << (x)) /* output */
1027 +#define AR2315_GPIO_CR_I(x) (0) /* input */
1028 +
1029 +#define AR2315_GPIO_INT_S(x) (x) /* interrupt enable */
1030 +#define AR2315_GPIO_INT_M (0x3F) /* mask for int */
1031 +#define AR2315_GPIO_INT_LVL(x) ((x) << 6) /* interrupt level */
1032 +#define AR2315_GPIO_INT_LVL_M ((0x3) << 6) /* mask for int level */
1033 +
1034 +#define AR2315_GPIO_INT_MAX_Y 1 /* Maximum value of Y for AR5313_GPIO_INT_* macros */
1035 +#define AR2315_GPIO_INT_LVL_OFF 0 /* Triggerring off */
1036 +#define AR2315_GPIO_INT_LVL_LOW 1 /* Low Level Triggered */
1037 +#define AR2315_GPIO_INT_LVL_HIGH 2 /* High Level Triggered */
1038 +#define AR2315_GPIO_INT_LVL_EDGE 3 /* Edge Triggered */
1039 +
1040 +#define AR2315_RESET_GPIO 5
1041 +#define AR2315_NUM_GPIO 22
1042 +
1043 +/*
1044 + * PCI Clock Control
1045 + */
1046 +#define AR2315_PCICLK (AR2315_DSLBASE + 0x00a4)
1047 +
1048 +#define AR2315_PCICLK_INPUT_M 0x3
1049 +#define AR2315_PCICLK_INPUT_S 0
1050 +
1051 +#define AR2315_PCICLK_PLLC_CLKM 0
1052 +#define AR2315_PCICLK_PLLC_CLKM1 1
1053 +#define AR2315_PCICLK_PLLC_CLKC 2
1054 +#define AR2315_PCICLK_REF_CLK 3
1055 +
1056 +#define AR2315_PCICLK_DIV_M 0xc
1057 +#define AR2315_PCICLK_DIV_S 2
1058 +
1059 +#define AR2315_PCICLK_IN_FREQ 0
1060 +#define AR2315_PCICLK_IN_FREQ_DIV_6 1
1061 +#define AR2315_PCICLK_IN_FREQ_DIV_8 2
1062 +#define AR2315_PCICLK_IN_FREQ_DIV_10 3
1063 +
1064 +/*
1065 + * Observation Control Register
1066 + */
1067 +#define AR2315_OCR (AR2315_DSLBASE + 0x00b0)
1068 +#define OCR_GPIO0_IRIN 0x0040
1069 +#define OCR_GPIO1_IROUT 0x0080
1070 +#define OCR_GPIO3_RXCLR 0x0200
1071 +
1072 +/*
1073 + * General Clock Control
1074 + */
1075 +
1076 +#define AR2315_MISCCLK (AR2315_DSLBASE + 0x00b4)
1077 +#define MISCCLK_PLLBYPASS_EN 0x00000001
1078 +#define MISCCLK_PROCREFCLK 0x00000002
1079 +
1080 +/*
1081 + * SDRAM Controller
1082 + * - No read or write buffers are included.
1083 + */
1084 +#define AR2315_MEM_CFG (AR2315_SDRAMCTL + 0x00)
1085 +#define AR2315_MEM_CTRL (AR2315_SDRAMCTL + 0x0c)
1086 +#define AR2315_MEM_REF (AR2315_SDRAMCTL + 0x10)
1087 +
1088 +#define SDRAM_DATA_WIDTH_M 0x00006000
1089 +#define SDRAM_DATA_WIDTH_S 13
1090 +
1091 +#define SDRAM_COL_WIDTH_M 0x00001E00
1092 +#define SDRAM_COL_WIDTH_S 9
1093 +
1094 +#define SDRAM_ROW_WIDTH_M 0x000001E0
1095 +#define SDRAM_ROW_WIDTH_S 5
1096 +
1097 +#define SDRAM_BANKADDR_BITS_M 0x00000018
1098 +#define SDRAM_BANKADDR_BITS_S 3
1099 +
1100 +/*
1101 + * SPI Flash Interface Registers
1102 + */
1103 +
1104 +#define AR2315_SPI_CTL (AR2315_SPI + 0x00)
1105 +#define AR2315_SPI_OPCODE (AR2315_SPI + 0x04)
1106 +#define AR2315_SPI_DATA (AR2315_SPI + 0x08)
1107 +
1108 +#define SPI_CTL_START 0x00000100
1109 +#define SPI_CTL_BUSY 0x00010000
1110 +#define SPI_CTL_TXCNT_MASK 0x0000000f
1111 +#define SPI_CTL_RXCNT_MASK 0x000000f0
1112 +#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
1113 +#define SPI_CTL_SIZE_MASK 0x00060000
1114 +
1115 +#define SPI_CTL_CLK_SEL_MASK 0x03000000
1116 +#define SPI_OPCODE_MASK 0x000000ff
1117 +
1118 +/*
1119 + * PCI Bus Interface Registers
1120 + */
1121 +#define AR2315_PCI_1MS_REG (AR2315_PCI + 0x0008)
1122 +#define AR2315_PCI_1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
1123 +
1124 +#define AR2315_PCI_MISC_CONFIG (AR2315_PCI + 0x000c)
1125 +#define AR2315_PCIMISC_TXD_EN 0x00000001 /* Enable TXD for fragments */
1126 +#define AR2315_PCIMISC_CFG_SEL 0x00000002 /* mem or config cycles */
1127 +#define AR2315_PCIMISC_GIG_MASK 0x0000000C /* bits 31-30 for pci req */
1128 +#define AR2315_PCIMISC_RST_MODE 0x00000030
1129 +#define AR2315_PCIRST_INPUT 0x00000000 /* 4:5=0 rst is input */
1130 +#define AR2315_PCIRST_LOW 0x00000010 /* 4:5=1 rst to GND */
1131 +#define AR2315_PCIRST_HIGH 0x00000020 /* 4:5=2 rst to VDD */
1132 +#define AR2315_PCIGRANT_EN 0x00000000 /* 6:7=0 early grant en */
1133 +#define AR2315_PCIGRANT_FRAME 0x00000040 /* 6:7=1 grant waits 4 frame */
1134 +#define AR2315_PCIGRANT_IDLE 0x00000080 /* 6:7=2 grant waits 4 idle */
1135 +#define AR2315_PCIGRANT_GAP 0x00000000 /* 6:7=2 grant waits 4 idle */
1136 +#define AR2315_PCICACHE_DIS 0x00001000 /* PCI external access cache disable */
1137 +
1138 +#define AR2315_PCI_OUT_TSTAMP (AR2315_PCI + 0x0010)
1139 +
1140 +#define AR2315_PCI_UNCACHE_CFG (AR2315_PCI + 0x0014)
1141 +
1142 +#define AR2315_PCI_IN_EN (AR2315_PCI + 0x0100)
1143 +#define AR2315_PCI_IN_EN0 0x01 /* Enable chain 0 */
1144 +#define AR2315_PCI_IN_EN1 0x02 /* Enable chain 1 */
1145 +#define AR2315_PCI_IN_EN2 0x04 /* Enable chain 2 */
1146 +#define AR2315_PCI_IN_EN3 0x08 /* Enable chain 3 */
1147 +
1148 +#define AR2315_PCI_IN_DIS (AR2315_PCI + 0x0104)
1149 +#define AR2315_PCI_IN_DIS0 0x01 /* Disable chain 0 */
1150 +#define AR2315_PCI_IN_DIS1 0x02 /* Disable chain 1 */
1151 +#define AR2315_PCI_IN_DIS2 0x04 /* Disable chain 2 */
1152 +#define AR2315_PCI_IN_DIS3 0x08 /* Disable chain 3 */
1153 +
1154 +#define AR2315_PCI_IN_PTR (AR2315_PCI + 0x0200)
1155 +
1156 +#define AR2315_PCI_OUT_EN (AR2315_PCI + 0x0400)
1157 +#define AR2315_PCI_OUT_EN0 0x01 /* Enable chain 0 */
1158 +
1159 +#define AR2315_PCI_OUT_DIS (AR2315_PCI + 0x0404)
1160 +#define AR2315_PCI_OUT_DIS0 0x01 /* Disable chain 0 */
1161 +
1162 +#define AR2315_PCI_OUT_PTR (AR2315_PCI + 0x0408)
1163 +
1164 +#define AR2315_PCI_INT_STATUS (AR2315_PCI + 0x0500) /* write one to clr */
1165 +#define AR2315_PCI_TXINT 0x00000001 /* Desc In Completed */
1166 +#define AR2315_PCI_TXOK 0x00000002 /* Desc In OK */
1167 +#define AR2315_PCI_TXERR 0x00000004 /* Desc In ERR */
1168 +#define AR2315_PCI_TXEOL 0x00000008 /* Desc In End-of-List */
1169 +#define AR2315_PCI_RXINT 0x00000010 /* Desc Out Completed */
1170 +#define AR2315_PCI_RXOK 0x00000020 /* Desc Out OK */
1171 +#define AR2315_PCI_RXERR 0x00000040 /* Desc Out ERR */
1172 +#define AR2315_PCI_RXEOL 0x00000080 /* Desc Out EOL */
1173 +#define AR2315_PCI_TXOOD 0x00000200 /* Desc In Out-of-Desc */
1174 +#define AR2315_PCI_MASK 0x0000FFFF /* Desc Mask */
1175 +#define AR2315_PCI_EXT_INT 0x02000000
1176 +#define AR2315_PCI_ABORT_INT 0x04000000
1177 +
1178 +#define AR2315_PCI_INT_MASK (AR2315_PCI + 0x0504) /* same as INT_STATUS */
1179 +
1180 +#define AR2315_PCI_INTEN_REG (AR2315_PCI + 0x0508)
1181 +#define AR2315_PCI_INT_DISABLE 0x00 /* disable pci interrupts */
1182 +#define AR2315_PCI_INT_ENABLE 0x01 /* enable pci interrupts */
1183 +
1184 +#define AR2315_PCI_HOST_IN_EN (AR2315_PCI + 0x0800)
1185 +#define AR2315_PCI_HOST_IN_DIS (AR2315_PCI + 0x0804)
1186 +#define AR2315_PCI_HOST_IN_PTR (AR2315_PCI + 0x0810)
1187 +#define AR2315_PCI_HOST_OUT_EN (AR2315_PCI + 0x0900)
1188 +#define AR2315_PCI_HOST_OUT_DIS (AR2315_PCI + 0x0904)
1189 +#define AR2315_PCI_HOST_OUT_PTR (AR2315_PCI + 0x0908)
1190 +
1191 +
1192 +/*
1193 + * Local Bus Interface Registers
1194 + */
1195 +#define AR2315_LB_CONFIG (AR2315_LOCAL + 0x0000)
1196 +#define AR2315_LBCONF_OE 0x00000001 /* =1 OE is low-true */
1197 +#define AR2315_LBCONF_CS0 0x00000002 /* =1 first CS is low-true */
1198 +#define AR2315_LBCONF_CS1 0x00000004 /* =1 2nd CS is low-true */
1199 +#define AR2315_LBCONF_RDY 0x00000008 /* =1 RDY is low-true */
1200 +#define AR2315_LBCONF_WE 0x00000010 /* =1 Write En is low-true */
1201 +#define AR2315_LBCONF_WAIT 0x00000020 /* =1 WAIT is low-true */
1202 +#define AR2315_LBCONF_ADS 0x00000040 /* =1 Adr Strobe is low-true */
1203 +#define AR2315_LBCONF_MOT 0x00000080 /* =0 Intel, =1 Motorola */
1204 +#define AR2315_LBCONF_8CS 0x00000100 /* =1 8 bits CS, 0= 16bits */
1205 +#define AR2315_LBCONF_8DS 0x00000200 /* =1 8 bits Data S, 0=16bits */
1206 +#define AR2315_LBCONF_ADS_EN 0x00000400 /* =1 Enable ADS */
1207 +#define AR2315_LBCONF_ADR_OE 0x00000800 /* =1 Adr cap on OE, WE or DS */
1208 +#define AR2315_LBCONF_ADDT_MUX 0x00001000 /* =1 Adr and Data share bus */
1209 +#define AR2315_LBCONF_DATA_OE 0x00002000 /* =1 Data cap on OE, WE, DS */
1210 +#define AR2315_LBCONF_16DATA 0x00004000 /* =1 Data is 16 bits wide */
1211 +#define AR2315_LBCONF_SWAPDT 0x00008000 /* =1 Byte swap data */
1212 +#define AR2315_LBCONF_SYNC 0x00010000 /* =1 Bus synchronous to clk */
1213 +#define AR2315_LBCONF_INT 0x00020000 /* =1 Intr is low true */
1214 +#define AR2315_LBCONF_INT_CTR0 0x00000000 /* GND high-Z, Vdd is high-Z */
1215 +#define AR2315_LBCONF_INT_CTR1 0x00040000 /* GND drive, Vdd is high-Z */
1216 +#define AR2315_LBCONF_INT_CTR2 0x00080000 /* GND high-Z, Vdd drive */
1217 +#define AR2315_LBCONF_INT_CTR3 0x000C0000 /* GND drive, Vdd drive */
1218 +#define AR2315_LBCONF_RDY_WAIT 0x00100000 /* =1 RDY is negative of WAIT */
1219 +#define AR2315_LBCONF_INT_PULSE 0x00200000 /* =1 Interrupt is a pulse */
1220 +#define AR2315_LBCONF_ENABLE 0x00400000 /* =1 Falcon respond to LB */
1221 +
1222 +#define AR2315_LB_CLKSEL (AR2315_LOCAL + 0x0004)
1223 +#define AR2315_LBCLK_EXT 0x0001 /* use external clk for lb */
1224 +
1225 +#define AR2315_LB_1MS (AR2315_LOCAL + 0x0008)
1226 +#define AR2315_LB1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
1227 +
1228 +#define AR2315_LB_MISCCFG (AR2315_LOCAL + 0x000C)
1229 +#define AR2315_LBM_TXD_EN 0x00000001 /* Enable TXD for fragments */
1230 +#define AR2315_LBM_RX_INTEN 0x00000002 /* Enable LB ints on RX ready */
1231 +#define AR2315_LBM_MBOXWR_INTEN 0x00000004 /* Enable LB ints on mbox wr */
1232 +#define AR2315_LBM_MBOXRD_INTEN 0x00000008 /* Enable LB ints on mbox rd */
1233 +#define AR2315_LMB_DESCSWAP_EN 0x00000010 /* Byte swap desc enable */
1234 +#define AR2315_LBM_TIMEOUT_MASK 0x00FFFF80
1235 +#define AR2315_LBM_TIMEOUT_SHFT 7
1236 +#define AR2315_LBM_PORTMUX 0x07000000
1237 +
1238 +
1239 +#define AR2315_LB_RXTSOFF (AR2315_LOCAL + 0x0010)
1240 +
1241 +#define AR2315_LB_TX_CHAIN_EN (AR2315_LOCAL + 0x0100)
1242 +#define AR2315_LB_TXEN_0 0x01
1243 +#define AR2315_LB_TXEN_1 0x02
1244 +#define AR2315_LB_TXEN_2 0x04
1245 +#define AR2315_LB_TXEN_3 0x08
1246 +
1247 +#define AR2315_LB_TX_CHAIN_DIS (AR2315_LOCAL + 0x0104)
1248 +#define AR2315_LB_TX_DESC_PTR (AR2315_LOCAL + 0x0200)
1249 +
1250 +#define AR2315_LB_RX_CHAIN_EN (AR2315_LOCAL + 0x0400)
1251 +#define AR2315_LB_RXEN 0x01
1252 +
1253 +#define AR2315_LB_RX_CHAIN_DIS (AR2315_LOCAL + 0x0404)
1254 +#define AR2315_LB_RX_DESC_PTR (AR2315_LOCAL + 0x0408)
1255 +
1256 +#define AR2315_LB_INT_STATUS (AR2315_LOCAL + 0x0500)
1257 +#define AR2315_INT_TX_DESC 0x0001
1258 +#define AR2315_INT_TX_OK 0x0002
1259 +#define AR2315_INT_TX_ERR 0x0004
1260 +#define AR2315_INT_TX_EOF 0x0008
1261 +#define AR2315_INT_RX_DESC 0x0010
1262 +#define AR2315_INT_RX_OK 0x0020
1263 +#define AR2315_INT_RX_ERR 0x0040
1264 +#define AR2315_INT_RX_EOF 0x0080
1265 +#define AR2315_INT_TX_TRUNC 0x0100
1266 +#define AR2315_INT_TX_STARVE 0x0200
1267 +#define AR2315_INT_LB_TIMEOUT 0x0400
1268 +#define AR2315_INT_LB_ERR 0x0800
1269 +#define AR2315_INT_MBOX_WR 0x1000
1270 +#define AR2315_INT_MBOX_RD 0x2000
1271 +
1272 +/* Bit definitions for INT MASK are the same as INT_STATUS */
1273 +#define AR2315_LB_INT_MASK (AR2315_LOCAL + 0x0504)
1274 +
1275 +#define AR2315_LB_INT_EN (AR2315_LOCAL + 0x0508)
1276 +#define AR2315_LB_MBOX (AR2315_LOCAL + 0x0600)
1277 +
1278 +/*
1279 + * IR Interface Registers
1280 + */
1281 +#define AR2315_IR_PKTDATA (AR2315_IR + 0x0000)
1282 +
1283 +#define AR2315_IR_PKTLEN (AR2315_IR + 0x07fc) /* 0 - 63 */
1284 +
1285 +#define AR2315_IR_CONTROL (AR2315_IR + 0x0800)
1286 +#define AR2315_IRCTL_TX 0x00000000 /* use as tranmitter */
1287 +#define AR2315_IRCTL_RX 0x00000001 /* use as receiver */
1288 +#define AR2315_IRCTL_SAMPLECLK_MASK 0x00003ffe /* Sample clk divisor mask */
1289 +#define AR2315_IRCTL_SAMPLECLK_SHFT 1
1290 +#define AR2315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk divisor mask */
1291 +#define AR2315_IRCTL_OUTPUTCLK_SHFT 14
1292 +
1293 +#define AR2315_IR_STATUS (AR2315_IR + 0x0804)
1294 +#define AR2315_IRSTS_RX 0x00000001 /* receive in progress */
1295 +#define AR2315_IRSTS_TX 0x00000002 /* transmit in progress */
1296 +
1297 +#define AR2315_IR_CONFIG (AR2315_IR + 0x0808)
1298 +#define AR2315_IRCFG_INVIN 0x00000001 /* invert input polarity */
1299 +#define AR2315_IRCFG_INVOUT 0x00000002 /* invert output polarity */
1300 +#define AR2315_IRCFG_SEQ_START_WIN_SEL 0x00000004 /* 1 => 28, 0 => 7 */
1301 +#define AR2315_IRCFG_SEQ_START_THRESH 0x000000f0 /* */
1302 +#define AR2315_IRCFG_SEQ_END_UNIT_SEL 0x00000100 /* */
1303 +#define AR2315_IRCFG_SEQ_END_UNIT_THRESH 0x00007e00 /* */
1304 +#define AR2315_IRCFG_SEQ_END_WIN_SEL 0x00008000 /* */
1305 +#define AR2315_IRCFG_SEQ_END_WIN_THRESH 0x001f0000 /* */
1306 +#define AR2315_IRCFG_NUM_BACKOFF_WORDS 0x01e00000 /* */
1307 +
1308 +#define HOST_PCI_DEV_ID 3
1309 +#define HOST_PCI_MBAR0 0x10000000
1310 +#define HOST_PCI_MBAR1 0x20000000
1311 +#define HOST_PCI_MBAR2 0x30000000
1312 +
1313 +#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
1314 +#define PCI_DEVICE_MEM_SPACE 0x800000
1315 +
1316 +#endif /* __AR2315_REG_H */
1317 --- /dev/null
1318 +++ b/arch/mips/include/asm/mach-ar231x/ar5312_regs.h
1319 @@ -0,0 +1,236 @@
1320 +/*
1321 + * This file is subject to the terms and conditions of the GNU General Public
1322 + * License. See the file "COPYING" in the main directory of this archive
1323 + * for more details.
1324 + *
1325 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
1326 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
1327 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
1328 + */
1329 +
1330 +#ifndef AR5312_H
1331 +#define AR5312_H
1332 +
1333 +#include <asm/addrspace.h>
1334 +
1335 +/*
1336 + * IRQs
1337 + */
1338 +
1339 +#define AR5312_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
1340 +#define AR5312_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
1341 +#define AR5312_IRQ_ENET1_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
1342 +#define AR5312_IRQ_WLAN1_INTRS MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
1343 +#define AR5312_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
1344 +
1345 +
1346 +/* Address Map */
1347 +#define AR531X_WLAN0 0x18000000
1348 +#define AR531X_WLAN1 0x18500000
1349 +#define AR531X_ENET0 0x18100000
1350 +#define AR531X_ENET1 0x18200000
1351 +#define AR531X_SDRAMCTL 0x18300000
1352 +#define AR531X_FLASHCTL 0x18400000
1353 +#define AR531X_APBBASE 0x1c000000
1354 +#define AR531X_FLASH 0x1e000000
1355 +#define AR531X_UART0 0xbc000003 /* UART MMR */
1356 +
1357 +/*
1358 + * AR531X_NUM_ENET_MAC defines the number of ethernet MACs that
1359 + * should be considered available. The AR5312 supports 2 enet MACS,
1360 + * even though many reference boards only actually use 1 of them
1361 + * (i.e. Only MAC 0 is actually connected to an enet PHY or PHY switch.
1362 + * The AR2312 supports 1 enet MAC.
1363 + */
1364 +#define AR531X_NUM_ENET_MAC 2
1365 +
1366 +/*
1367 + * Need these defines to determine true number of ethernet MACs
1368 + */
1369 +#define AR5212_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
1370 +#define AR5212_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
1371 +#define AR5212_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */
1372 +#define AR531X_RADIO_MASK_OFF 0xc8
1373 +#define AR531X_RADIO0_MASK 0x0003
1374 +#define AR531X_RADIO1_MASK 0x000c
1375 +#define AR531X_RADIO1_S 2
1376 +
1377 +/*
1378 + * AR531X_NUM_WMAC defines the number of Wireless MACs that\
1379 + * should be considered available.
1380 + */
1381 +#define AR531X_NUM_WMAC 2
1382 +
1383 +/* Reset/Timer Block Address Map */
1384 +#define AR531X_RESETTMR (AR531X_APBBASE + 0x3000)
1385 +#define AR531X_TIMER (AR531X_RESETTMR + 0x0000) /* countdown timer */
1386 +#define AR531X_WD_CTRL (AR531X_RESETTMR + 0x0008) /* watchdog cntrl */
1387 +#define AR531X_WD_TIMER (AR531X_RESETTMR + 0x000c) /* watchdog timer */
1388 +#define AR531X_ISR (AR531X_RESETTMR + 0x0010) /* Intr Status Reg */
1389 +#define AR531X_IMR (AR531X_RESETTMR + 0x0014) /* Intr Mask Reg */
1390 +#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
1391 +#define AR5312_CLOCKCTL1 (AR531X_RESETTMR + 0x0064)
1392 +#define AR5312_SCRATCH (AR531X_RESETTMR + 0x006c)
1393 +#define AR531X_PROCADDR (AR531X_RESETTMR + 0x0070)
1394 +#define AR531X_PROC1 (AR531X_RESETTMR + 0x0074)
1395 +#define AR531X_DMAADDR (AR531X_RESETTMR + 0x0078)
1396 +#define AR531X_DMA1 (AR531X_RESETTMR + 0x007c)
1397 +#define AR531X_ENABLE (AR531X_RESETTMR + 0x0080) /* interface enb */
1398 +#define AR531X_REV (AR531X_RESETTMR + 0x0090) /* revision */
1399 +
1400 +/* AR531X_WD_CTRL register bit field definitions */
1401 +#define AR531X_WD_CTRL_IGNORE_EXPIRATION 0x0000
1402 +#define AR531X_WD_CTRL_NMI 0x0001
1403 +#define AR531X_WD_CTRL_RESET 0x0002
1404 +
1405 +/* AR531X_ISR register bit field definitions */
1406 +#define AR531X_ISR_NONE 0x0000
1407 +#define AR531X_ISR_TIMER 0x0001
1408 +#define AR531X_ISR_AHBPROC 0x0002
1409 +#define AR531X_ISR_AHBDMA 0x0004
1410 +#define AR531X_ISR_GPIO 0x0008
1411 +#define AR531X_ISR_UART0 0x0010
1412 +#define AR531X_ISR_UART0DMA 0x0020
1413 +#define AR531X_ISR_WD 0x0040
1414 +#define AR531X_ISR_LOCAL 0x0080
1415 +
1416 +/* AR531X_RESET register bit field definitions */
1417 +#define AR531X_RESET_SYSTEM 0x00000001 /* cold reset full system */
1418 +#define AR531X_RESET_PROC 0x00000002 /* cold reset MIPS core */
1419 +#define AR531X_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
1420 +#define AR531X_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
1421 +#define AR531X_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
1422 +#define AR531X_RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
1423 +#define AR531X_RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
1424 +#define AR531X_RESET_UART0 0x00000100 /* cold reset UART0 (high speed) */
1425 +#define AR531X_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */
1426 +#define AR531X_RESET_APB 0x00000400 /* cold reset APB (ar5312) */
1427 +#define AR531X_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */
1428 +#define AR531X_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */
1429 +#define AR531X_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BaseBand */
1430 +#define AR531X_RESET_NMI 0x00010000 /* send an NMI to the processor */
1431 +#define AR531X_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 mac */
1432 +#define AR531X_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 baseband */
1433 +#define AR531X_RESET_LOCAL_BUS 0x00080000 /* reset local bus */
1434 +#define AR531X_RESET_WDOG 0x00100000 /* last reset was a watchdog */
1435 +
1436 +#define AR531X_RESET_WMAC0_BITS \
1437 + AR531X_RESET_WLAN0 |\
1438 + AR531X_RESET_WARM_WLAN0_MAC |\
1439 + AR531X_RESET_WARM_WLAN0_BB
1440 +
1441 +#define AR531X_RESERT_WMAC1_BITS \
1442 + AR531X_RESET_WLAN1 |\
1443 + AR531X_RESET_WARM_WLAN1_MAC |\
1444 + AR531X_RESET_WARM_WLAN1_BB
1445 +
1446 +/* AR5312_CLOCKCTL1 register bit field definitions */
1447 +#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
1448 +#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
1449 +#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
1450 +#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
1451 +#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
1452 +
1453 +/* Valid for AR5312 and AR2312 */
1454 +#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
1455 +#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
1456 +#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
1457 +#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
1458 +#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
1459 +
1460 +/* Valid for AR2313 */
1461 +#define AR2313_CLOCKCTL1_PREDIVIDE_MASK 0x00003000
1462 +#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT 12
1463 +#define AR2313_CLOCKCTL1_MULTIPLIER_MASK 0x001f0000
1464 +#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT 16
1465 +#define AR2313_CLOCKCTL1_DOUBLER_MASK 0x00000000
1466 +
1467 +
1468 +/* AR531X_ENABLE register bit field definitions */
1469 +#define AR531X_ENABLE_WLAN0 0x0001
1470 +#define AR531X_ENABLE_ENET0 0x0002
1471 +#define AR531X_ENABLE_ENET1 0x0004
1472 +#define AR531X_ENABLE_UART_AND_WLAN1_PIO 0x0008 /* UART, and WLAN1 PIOs */
1473 +#define AR531X_ENABLE_WLAN1_DMA 0x0010 /* WLAN1 DMAs */
1474 +#define AR531X_ENABLE_WLAN1 \
1475 + (AR531X_ENABLE_UART_AND_WLAN1_PIO | AR531X_ENABLE_WLAN1_DMA)
1476 +
1477 +/* AR531X_REV register bit field definitions */
1478 +#define AR531X_REV_WMAC_MAJ 0xf000
1479 +#define AR531X_REV_WMAC_MAJ_S 12
1480 +#define AR531X_REV_WMAC_MIN 0x0f00
1481 +#define AR531X_REV_WMAC_MIN_S 8
1482 +#define AR531X_REV_MAJ 0x00f0
1483 +#define AR531X_REV_MAJ_S 4
1484 +#define AR531X_REV_MIN 0x000f
1485 +#define AR531X_REV_MIN_S 0
1486 +#define AR531X_REV_CHIP (AR531X_REV_MAJ|AR531X_REV_MIN)
1487 +
1488 +/* Major revision numbers, bits 7..4 of Revision ID register */
1489 +#define AR531X_REV_MAJ_AR5312 0x4
1490 +#define AR531X_REV_MAJ_AR2313 0x5
1491 +
1492 +/* Minor revision numbers, bits 3..0 of Revision ID register */
1493 +#define AR5312_REV_MIN_DUAL 0x0 /* Dual WLAN version */
1494 +#define AR5312_REV_MIN_SINGLE 0x1 /* Single WLAN version */
1495 +
1496 +/* AR531X_FLASHCTL register bit field definitions */
1497 +#define FLASHCTL_IDCY 0x0000000f /* Idle cycle turn around time */
1498 +#define FLASHCTL_IDCY_S 0
1499 +#define FLASHCTL_WST1 0x000003e0 /* Wait state 1 */
1500 +#define FLASHCTL_WST1_S 5
1501 +#define FLASHCTL_RBLE 0x00000400 /* Read byte lane enable */
1502 +#define FLASHCTL_WST2 0x0000f800 /* Wait state 2 */
1503 +#define FLASHCTL_WST2_S 11
1504 +#define FLASHCTL_AC 0x00070000 /* Flash address check (added) */
1505 +#define FLASHCTL_AC_S 16
1506 +#define FLASHCTL_AC_128K 0x00000000
1507 +#define FLASHCTL_AC_256K 0x00010000
1508 +#define FLASHCTL_AC_512K 0x00020000
1509 +#define FLASHCTL_AC_1M 0x00030000
1510 +#define FLASHCTL_AC_2M 0x00040000
1511 +#define FLASHCTL_AC_4M 0x00050000
1512 +#define FLASHCTL_AC_8M 0x00060000
1513 +#define FLASHCTL_AC_RES 0x00070000 /* 16MB is not supported */
1514 +#define FLASHCTL_E 0x00080000 /* Flash bank enable (added) */
1515 +#define FLASHCTL_BUSERR 0x01000000 /* Bus transfer error status flag */
1516 +#define FLASHCTL_WPERR 0x02000000 /* Write protect error status flag */
1517 +#define FLASHCTL_WP 0x04000000 /* Write protect */
1518 +#define FLASHCTL_BM 0x08000000 /* Burst mode */
1519 +#define FLASHCTL_MW 0x30000000 /* Memory width */
1520 +#define FLASHCTL_MWx8 0x00000000 /* Memory width x8 */
1521 +#define FLASHCTL_MWx16 0x10000000 /* Memory width x16 */
1522 +#define FLASHCTL_MWx32 0x20000000 /* Memory width x32 (not supported) */
1523 +#define FLASHCTL_ATNR 0x00000000 /* Access type == no retry */
1524 +#define FLASHCTL_ATR 0x80000000 /* Access type == retry every */
1525 +#define FLASHCTL_ATR4 0xc0000000 /* Access type == retry every 4 */
1526 +
1527 +/* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices. */
1528 +#define AR531X_FLASHCTL0 (AR531X_FLASHCTL + 0x00)
1529 +#define AR531X_FLASHCTL1 (AR531X_FLASHCTL + 0x04)
1530 +#define AR531X_FLASHCTL2 (AR531X_FLASHCTL + 0x08)
1531 +
1532 +/* ARM SDRAM Controller -- just enough to determine memory size */
1533 +#define AR531X_MEM_CFG1 (AR531X_SDRAMCTL + 0x04)
1534 +#define MEM_CFG1_AC0 0x00000700 /* bank 0: SDRAM addr check (added) */
1535 +#define MEM_CFG1_AC0_S 8
1536 +#define MEM_CFG1_AC1 0x00007000 /* bank 1: SDRAM addr check (added) */
1537 +#define MEM_CFG1_AC1_S 12
1538 +
1539 +/* GPIO Address Map */
1540 +#define AR531X_GPIO (AR531X_APBBASE + 0x2000)
1541 +#define AR531X_GPIO_DO (AR531X_GPIO + 0x00) /* output register */
1542 +#define AR531X_GPIO_DI (AR531X_GPIO + 0x04) /* intput register */
1543 +#define AR531X_GPIO_CR (AR531X_GPIO + 0x08) /* control register */
1544 +
1545 +/* GPIO Control Register bit field definitions */
1546 +#define AR531X_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
1547 +#define AR531X_GPIO_CR_O(x) (0 << (x)) /* mask for output */
1548 +#define AR531X_GPIO_CR_I(x) (1 << (x)) /* mask for input */
1549 +#define AR531X_GPIO_CR_INT(x) (1 << ((x)+8)) /* mask for interrupt */
1550 +#define AR531X_GPIO_CR_UART(x) (1 << ((x)+16)) /* uart multiplex */
1551 +#define AR531X_NUM_GPIO 8
1552 +
1553 +
1554 +#endif
1555 +
1556 --- /dev/null
1557 +++ b/arch/mips/ar231x/ar5312.c
1558 @@ -0,0 +1,549 @@
1559 +/*
1560 + * This file is subject to the terms and conditions of the GNU General Public
1561 + * License. See the file "COPYING" in the main directory of this archive
1562 + * for more details.
1563 + *
1564 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
1565 + * Copyright (C) 2006 FON Technology, SL.
1566 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
1567 + * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
1568 + */
1569 +
1570 +/*
1571 + * Platform devices for Atheros SoCs
1572 + */
1573 +
1574 +#include <linux/autoconf.h>
1575 +#include <linux/init.h>
1576 +#include <linux/module.h>
1577 +#include <linux/types.h>
1578 +#include <linux/string.h>
1579 +#include <linux/mtd/physmap.h>
1580 +#include <linux/platform_device.h>
1581 +#include <linux/kernel.h>
1582 +#include <linux/reboot.h>
1583 +#include <linux/leds.h>
1584 +#include <asm/bootinfo.h>
1585 +#include <asm/reboot.h>
1586 +#include <asm/time.h>
1587 +#include <asm/irq.h>
1588 +#include <asm/io.h>
1589 +#include <gpio.h>
1590 +
1591 +#include <ar231x_platform.h>
1592 +#include <ar5312_regs.h>
1593 +#include <ar231x.h>
1594 +#include "devices.h"
1595 +#include "ar5312.h"
1596 +
1597 +static void
1598 +ar5312_misc_irq_dispatch(void)
1599 +{
1600 + unsigned int ar231x_misc_intrs = ar231x_read_reg(AR531X_ISR) & ar231x_read_reg(AR531X_IMR);
1601 +
1602 + if (ar231x_misc_intrs & AR531X_ISR_TIMER) {
1603 + do_IRQ(AR531X_MISC_IRQ_TIMER);
1604 + (void)ar231x_read_reg(AR531X_TIMER);
1605 + } else if (ar231x_misc_intrs & AR531X_ISR_AHBPROC)
1606 + do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
1607 + else if ((ar231x_misc_intrs & AR531X_ISR_UART0))
1608 + do_IRQ(AR531X_MISC_IRQ_UART0);
1609 + else if (ar231x_misc_intrs & AR531X_ISR_WD)
1610 + do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
1611 + else
1612 + do_IRQ(AR531X_MISC_IRQ_NONE);
1613 +}
1614 +
1615 +static asmlinkage void
1616 +ar5312_irq_dispatch(void)
1617 +{
1618 + int pending = read_c0_status() & read_c0_cause();
1619 +
1620 + if (pending & CAUSEF_IP2)
1621 + do_IRQ(AR5312_IRQ_WLAN0_INTRS);
1622 + else if (pending & CAUSEF_IP3)
1623 + do_IRQ(AR5312_IRQ_ENET0_INTRS);
1624 + else if (pending & CAUSEF_IP4)
1625 + do_IRQ(AR5312_IRQ_ENET1_INTRS);
1626 + else if (pending & CAUSEF_IP5)
1627 + do_IRQ(AR5312_IRQ_WLAN1_INTRS);
1628 + else if (pending & CAUSEF_IP6)
1629 + ar5312_misc_irq_dispatch();
1630 + else if (pending & CAUSEF_IP7)
1631 + do_IRQ(AR531X_IRQ_CPU_CLOCK);
1632 +}
1633 +
1634 +
1635 +/* Enable the specified AR531X_MISC_IRQ interrupt */
1636 +static void
1637 +ar5312_misc_intr_enable(unsigned int irq)
1638 +{
1639 + unsigned int imr;
1640 +
1641 + imr = ar231x_read_reg(AR531X_IMR);
1642 + imr |= (1 << (irq - AR531X_MISC_IRQ_BASE - 1));
1643 + ar231x_write_reg(AR531X_IMR, imr);
1644 +}
1645 +
1646 +/* Disable the specified AR531X_MISC_IRQ interrupt */
1647 +static void
1648 +ar5312_misc_intr_disable(unsigned int irq)
1649 +{
1650 + unsigned int imr;
1651 +
1652 + imr = ar231x_read_reg(AR531X_IMR);
1653 + imr &= ~(1 << (irq - AR531X_MISC_IRQ_BASE - 1));
1654 + ar231x_write_reg(AR531X_IMR, imr);
1655 + ar231x_read_reg(AR531X_IMR); /* flush write buffer */
1656 +}
1657 +
1658 +static void
1659 +ar5312_misc_intr_end(unsigned int irq)
1660 +{
1661 + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
1662 + ar5312_misc_intr_enable(irq);
1663 +}
1664 +
1665 +static struct irq_chip ar5312_misc_intr_controller = {
1666 + .name = "AR5312-MISC",
1667 + .disable = ar5312_misc_intr_disable,
1668 + .ack = ar5312_misc_intr_disable,
1669 + .mask_ack = ar5312_misc_intr_disable,
1670 + .mask = ar5312_misc_intr_disable,
1671 + .unmask = ar5312_misc_intr_enable,
1672 + .end = ar5312_misc_intr_end,
1673 +};
1674 +
1675 +
1676 +static irqreturn_t ar5312_ahb_proc_handler(int cpl, void *dev_id)
1677 +{
1678 + u32 proc1 = ar231x_read_reg(AR531X_PROC1);
1679 + u32 procAddr = ar231x_read_reg(AR531X_PROCADDR); /* clears error state */
1680 + u32 dma1 = ar231x_read_reg(AR531X_DMA1);
1681 + u32 dmaAddr = ar231x_read_reg(AR531X_DMAADDR); /* clears error state */
1682 +
1683 + printk("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
1684 + procAddr, proc1, dmaAddr, dma1);
1685 +
1686 + machine_restart("AHB error"); /* Catastrophic failure */
1687 + return IRQ_HANDLED;
1688 +}
1689 +
1690 +
1691 +static struct irqaction ar5312_ahb_proc_interrupt = {
1692 + .handler = ar5312_ahb_proc_handler,
1693 + .flags = IRQF_DISABLED,
1694 + .name = "ar5312_ahb_proc_interrupt",
1695 +};
1696 +
1697 +
1698 +static struct irqaction cascade = {
1699 + .handler = no_action,
1700 + .flags = IRQF_DISABLED,
1701 + .name = "cascade",
1702 +};
1703 +
1704 +void __init ar5312_irq_init(void)
1705 +{
1706 + int i;
1707 +
1708 + if (!is_5312())
1709 + return;
1710 +
1711 + ar231x_irq_dispatch = ar5312_irq_dispatch;
1712 + for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
1713 + int irq = AR531X_MISC_IRQ_BASE + i;
1714 + set_irq_chip_and_handler(irq, &ar5312_misc_intr_controller,
1715 + handle_level_irq);
1716 + }
1717 + setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt);
1718 + setup_irq(AR5312_IRQ_MISC_INTRS, &cascade);
1719 +}
1720 +
1721 +const struct ar231x_gpiodev ar5312_gpiodev;
1722 +
1723 +static u32
1724 +ar5312_gpio_get_output(void)
1725 +{
1726 + u32 reg;
1727 + reg = ~(ar231x_read_reg(AR531X_GPIO_CR));
1728 + reg &= ar5312_gpiodev.valid_mask;
1729 + return reg;
1730 +}
1731 +
1732 +static u32
1733 +ar5312_gpio_set_output(u32 mask, u32 val)
1734 +{
1735 + u32 reg;
1736 +
1737 + reg = ar231x_read_reg(AR531X_GPIO_CR);
1738 + reg |= mask;
1739 + reg &= ~val;
1740 + ar231x_write_reg(AR531X_GPIO_CR, reg);
1741 + return reg;
1742 +}
1743 +
1744 +static u32
1745 +ar5312_gpio_get(void)
1746 +{
1747 + u32 reg;
1748 + reg = ar231x_read_reg(AR531X_GPIO_DI);
1749 + reg &= ar5312_gpiodev.valid_mask;
1750 + return reg;
1751 +}
1752 +
1753 +static u32
1754 +ar5312_gpio_set(u32 mask, u32 value)
1755 +{
1756 + u32 reg;
1757 + reg = ar231x_read_reg(AR531X_GPIO_DO);
1758 + reg &= ~mask;
1759 + reg |= value;
1760 + ar231x_write_reg(AR531X_GPIO_DO, reg);
1761 + return reg;
1762 +}
1763 +
1764 +const struct ar231x_gpiodev ar5312_gpiodev = {
1765 + .valid_mask = (1 << 8) - 1,
1766 + .get_output = ar5312_gpio_get_output,
1767 + .set_output = ar5312_gpio_set_output,
1768 + .get = ar5312_gpio_get,
1769 + .set = ar5312_gpio_set,
1770 +};
1771 +
1772 +static struct physmap_flash_data ar5312_flash_data = {
1773 + .width = 2,
1774 +};
1775 +
1776 +static struct resource ar5312_flash_resource = {
1777 + .start = AR531X_FLASH,
1778 + .end = AR531X_FLASH + 0x800000 - 1,
1779 + .flags = IORESOURCE_MEM,
1780 +};
1781 +
1782 +static struct ar231x_eth ar5312_eth0_data = {
1783 + .reset_base = AR531X_RESET,
1784 + .reset_mac = AR531X_RESET_ENET0,
1785 + .reset_phy = AR531X_RESET_EPHY0,
1786 + .phy_base = KSEG1ADDR(AR531X_ENET0),
1787 + .config = &ar231x_board,
1788 +};
1789 +
1790 +static struct ar231x_eth ar5312_eth1_data = {
1791 + .reset_base = AR531X_RESET,
1792 + .reset_mac = AR531X_RESET_ENET1,
1793 + .reset_phy = AR531X_RESET_EPHY1,
1794 + .phy_base = KSEG1ADDR(AR531X_ENET1),
1795 + .config = &ar231x_board,
1796 +};
1797 +
1798 +static struct platform_device ar5312_physmap_flash = {
1799 + .name = "physmap-flash",
1800 + .id = 0,
1801 + .dev.platform_data = &ar5312_flash_data,
1802 + .resource = &ar5312_flash_resource,
1803 + .num_resources = 1,
1804 +};
1805 +
1806 +#ifdef CONFIG_LEDS_GPIO
1807 +static struct gpio_led ar5312_leds[] = {
1808 + { .name = "wlan", .gpio = 0, .active_low = 1, },
1809 +};
1810 +
1811 +static const struct gpio_led_platform_data ar5312_led_data = {
1812 + .num_leds = ARRAY_SIZE(ar5312_leds),
1813 + .leds = (void *) ar5312_leds,
1814 +};
1815 +
1816 +static struct platform_device ar5312_gpio_leds = {
1817 + .name = "leds-gpio",
1818 + .id = -1,
1819 + .dev.platform_data = (void *) &ar5312_led_data,
1820 +};
1821 +#endif
1822 +
1823 +/*
1824 + * NB: This mapping size is larger than the actual flash size,
1825 + * but this shouldn't be a problem here, because the flash
1826 + * will simply be mapped multiple times.
1827 + */
1828 +static char __init *ar5312_flash_limit(void)
1829 +{
1830 + u32 ctl;
1831 + /*
1832 + * Configure flash bank 0.
1833 + * Assume 8M window size. Flash will be aliased if it's smaller
1834 + */
1835 + ctl = FLASHCTL_E |
1836 + FLASHCTL_AC_8M |
1837 + FLASHCTL_RBLE |
1838 + (0x01 << FLASHCTL_IDCY_S) |
1839 + (0x07 << FLASHCTL_WST1_S) |
1840 + (0x07 << FLASHCTL_WST2_S) |
1841 + (ar231x_read_reg(AR531X_FLASHCTL0) & FLASHCTL_MW);
1842 +
1843 + ar231x_write_reg(AR531X_FLASHCTL0, ctl);
1844 +
1845 + /* Disable other flash banks */
1846 + ar231x_write_reg(AR531X_FLASHCTL1,
1847 + ar231x_read_reg(AR531X_FLASHCTL1) & ~(FLASHCTL_E | FLASHCTL_AC));
1848 +
1849 + ar231x_write_reg(AR531X_FLASHCTL2,
1850 + ar231x_read_reg(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC));
1851 +
1852 + return (char *) KSEG1ADDR(AR531X_FLASH + 0x800000);
1853 +}
1854 +
1855 +int __init ar5312_init_devices(void)
1856 +{
1857 + struct ar231x_boarddata *config;
1858 + u32 fctl = 0;
1859 + const u8 *radio;
1860 + u8 *c;
1861 +
1862 + if (!is_5312())
1863 + return 0;
1864 +
1865 + /* Locate board/radio config data */
1866 + ar231x_find_config(ar5312_flash_limit());
1867 + config = ar231x_board.config;
1868 +
1869 +
1870 + /*
1871 + * Chip IDs and hardware detection for some Atheros
1872 + * models are really broken!
1873 + *
1874 + * Atheros uses a disabled WMAC0 and Silicon ID of AR5312
1875 + * as indication for AR2312, which is otherwise
1876 + * indistinguishable from the real AR5312.
1877 + */
1878 + if (ar231x_board.radio) {
1879 + radio = ar231x_board.radio + AR531X_RADIO_MASK_OFF;
1880 + if ((*((const u32 *) radio) & AR531X_RADIO0_MASK) == 0)
1881 + config->flags |= BD_ISCASPER;
1882 + } else
1883 + radio = NULL;
1884 +
1885 + /* AR2313 has CPU minor rev. 10 */
1886 + if ((current_cpu_data.processor_id & 0xff) == 0x0a)
1887 + ar231x_devtype = DEV_TYPE_AR2313;
1888 +
1889 + /* AR2312 shares the same Silicon ID as AR5312 */
1890 + else if (config->flags & BD_ISCASPER)
1891 + ar231x_devtype = DEV_TYPE_AR2312;
1892 +
1893 + /* Everything else is probably AR5312 or compatible */
1894 + else
1895 + ar231x_devtype = DEV_TYPE_AR5312;
1896 +
1897 + /* fixup flash width */
1898 + fctl = ar231x_read_reg(AR531X_FLASHCTL) & FLASHCTL_MW;
1899 + switch (fctl) {
1900 + case FLASHCTL_MWx16:
1901 + ar5312_flash_data.width = 2;
1902 + break;
1903 + case FLASHCTL_MWx8:
1904 + default:
1905 + ar5312_flash_data.width = 1;
1906 + break;
1907 + }
1908 +
1909 + platform_device_register(&ar5312_physmap_flash);
1910 +
1911 +#ifdef CONFIG_LEDS_GPIO
1912 + ar5312_leds[0].gpio = config->sysLedGpio;
1913 + platform_device_register(&ar5312_gpio_leds);
1914 +#endif
1915 +
1916 + /* Fix up MAC addresses if necessary */
1917 + if (!memcmp(config->enet0_mac, "\xff\xff\xff\xff\xff\xff", 6))
1918 + memcpy(config->enet0_mac, config->enet1_mac, 6);
1919 +
1920 + /* If ENET0 and ENET1 have the same mac address,
1921 + * increment the one from ENET1 */
1922 + if (memcmp(config->enet0_mac, config->enet1_mac, 6) == 0) {
1923 + c = config->enet1_mac + 5;
1924 + while ((c >= config->enet1_mac) && !(++(*c)))
1925 + c--;
1926 + }
1927 +
1928 + switch(ar231x_devtype) {
1929 + case DEV_TYPE_AR5312:
1930 + ar5312_eth0_data.macaddr = config->enet0_mac;
1931 + ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET0),
1932 + AR5312_IRQ_ENET0_INTRS, &ar5312_eth0_data);
1933 +
1934 + ar5312_eth1_data.macaddr = config->enet1_mac;
1935 + ar231x_add_ethernet(1, KSEG1ADDR(AR531X_ENET1),
1936 + AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
1937 +
1938 + if (!ar231x_board.radio)
1939 + return 0;
1940 +
1941 + if ((*((u32 *) radio) & AR531X_RADIO0_MASK) &&
1942 + (config->flags & BD_WLAN0))
1943 + ar231x_add_wmac(0, AR531X_WLAN0,
1944 + AR5312_IRQ_WLAN0_INTRS);
1945 +
1946 + break;
1947 + /*
1948 + * AR2312/3 ethernet uses the PHY of ENET0, but the MAC
1949 + * of ENET1. Atheros calls it 'twisted' for a reason :)
1950 + */
1951 + case DEV_TYPE_AR2312:
1952 + case DEV_TYPE_AR2313:
1953 + ar5312_eth1_data.phy_base = ar5312_eth0_data.phy_base;
1954 + ar5312_eth1_data.reset_phy = ar5312_eth0_data.reset_phy;
1955 + ar5312_eth1_data.macaddr = config->enet0_mac;
1956 + ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET1),
1957 + AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
1958 +
1959 + if (!ar231x_board.radio)
1960 + return 0;
1961 + break;
1962 + default:
1963 + break;
1964 + }
1965 +
1966 + if ((*((u32 *) radio) & AR531X_RADIO1_MASK) &&
1967 + (config->flags & BD_WLAN1))
1968 + ar231x_add_wmac(1, AR531X_WLAN1,
1969 + AR5312_IRQ_WLAN1_INTRS);
1970 +
1971 + return 0;
1972 +}
1973 +
1974 +
1975 +static void ar5312_restart(char *command)
1976 +{
1977 + /* reset the system */
1978 + local_irq_disable();
1979 + while(1) {
1980 + ar231x_write_reg(AR531X_RESET, AR531X_RESET_SYSTEM);
1981 + }
1982 +}
1983 +
1984 +
1985 +/*
1986 + * This table is indexed by bits 5..4 of the CLOCKCTL1 register
1987 + * to determine the predevisor value.
1988 + */
1989 +static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = { 1, 2, 4, 5 };
1990 +
1991 +
1992 +static int __init
1993 +ar5312_cpu_frequency(void)
1994 +{
1995 + unsigned int result;
1996 + unsigned int predivide_mask, predivide_shift;
1997 + unsigned int multiplier_mask, multiplier_shift;
1998 + unsigned int clockCtl1, preDivideSelect, preDivisor, multiplier;
1999 + unsigned int doubler_mask;
2000 + u16 devid;
2001 +
2002 + /* Trust the bootrom's idea of cpu frequency. */
2003 + if ((result = ar231x_read_reg(AR5312_SCRATCH)))
2004 + return result;
2005 +
2006 + devid = ar231x_read_reg(AR531X_REV);
2007 + devid &= AR531X_REV_MAJ;
2008 + devid >>= AR531X_REV_MAJ_S;
2009 + if (devid == AR531X_REV_MAJ_AR2313) {
2010 + predivide_mask = AR2313_CLOCKCTL1_PREDIVIDE_MASK;
2011 + predivide_shift = AR2313_CLOCKCTL1_PREDIVIDE_SHIFT;
2012 + multiplier_mask = AR2313_CLOCKCTL1_MULTIPLIER_MASK;
2013 + multiplier_shift = AR2313_CLOCKCTL1_MULTIPLIER_SHIFT;
2014 + doubler_mask = AR2313_CLOCKCTL1_DOUBLER_MASK;
2015 + } else { /* AR5312 and AR2312 */
2016 + predivide_mask = AR5312_CLOCKCTL1_PREDIVIDE_MASK;
2017 + predivide_shift = AR5312_CLOCKCTL1_PREDIVIDE_SHIFT;
2018 + multiplier_mask = AR5312_CLOCKCTL1_MULTIPLIER_MASK;
2019 + multiplier_shift = AR5312_CLOCKCTL1_MULTIPLIER_SHIFT;
2020 + doubler_mask = AR5312_CLOCKCTL1_DOUBLER_MASK;
2021 + }
2022 +
2023 + /*
2024 + * Clocking is derived from a fixed 40MHz input clock.
2025 + *
2026 + * cpuFreq = InputClock * MULT (where MULT is PLL multiplier)
2027 + * sysFreq = cpuFreq / 4 (used for APB clock, serial,
2028 + * flash, Timer, Watchdog Timer)
2029 + *
2030 + * cntFreq = cpuFreq / 2 (use for CPU count/compare)
2031 + *
2032 + * So, for example, with a PLL multiplier of 5, we have
2033 + *
2034 + * cpuFreq = 200MHz
2035 + * sysFreq = 50MHz
2036 + * cntFreq = 100MHz
2037 + *
2038 + * We compute the CPU frequency, based on PLL settings.
2039 + */
2040 +
2041 + clockCtl1 = ar231x_read_reg(AR5312_CLOCKCTL1);
2042 + preDivideSelect = (clockCtl1 & predivide_mask) >> predivide_shift;
2043 + preDivisor = CLOCKCTL1_PREDIVIDE_TABLE[preDivideSelect];
2044 + multiplier = (clockCtl1 & multiplier_mask) >> multiplier_shift;
2045 +
2046 + if (clockCtl1 & doubler_mask) {
2047 + multiplier = multiplier << 1;
2048 + }
2049 + return (40000000 / preDivisor) * multiplier;
2050 +}
2051 +
2052 +static inline int
2053 +ar5312_sys_frequency(void)
2054 +{
2055 + return ar5312_cpu_frequency() / 4;
2056 +}
2057 +
2058 +void __init
2059 +ar5312_time_init(void)
2060 +{
2061 + if (!is_5312())
2062 + return;
2063 +
2064 + mips_hpt_frequency = ar5312_cpu_frequency() / 2;
2065 +}
2066 +
2067 +
2068 +void __init
2069 +ar5312_prom_init(void)
2070 +{
2071 + u32 memsize, memcfg, bank0AC, bank1AC;
2072 + u32 devid;
2073 +
2074 + if (!is_5312())
2075 + return;
2076 +
2077 + /* Detect memory size */
2078 + memcfg = ar231x_read_reg(AR531X_MEM_CFG1);
2079 + bank0AC = (memcfg & MEM_CFG1_AC0) >> MEM_CFG1_AC0_S;
2080 + bank1AC = (memcfg & MEM_CFG1_AC1) >> MEM_CFG1_AC1_S;
2081 + memsize = (bank0AC ? (1 << (bank0AC+1)) : 0)
2082 + + (bank1AC ? (1 << (bank1AC+1)) : 0);
2083 + memsize <<= 20;
2084 + add_memory_region(0, memsize, BOOT_MEM_RAM);
2085 +
2086 + devid = ar231x_read_reg(AR531X_REV);
2087 + devid >>= AR531X_REV_WMAC_MIN_S;
2088 + devid &= AR531X_REV_CHIP;
2089 + ar231x_board.devid = (u16) devid;
2090 + ar231x_gpiodev = &ar5312_gpiodev;
2091 +}
2092 +
2093 +void __init
2094 +ar5312_plat_setup(void)
2095 +{
2096 + if (!is_5312())
2097 + return;
2098 +
2099 + /* Clear any lingering AHB errors */
2100 + ar231x_read_reg(AR531X_PROCADDR);
2101 + ar231x_read_reg(AR531X_DMAADDR);
2102 + ar231x_write_reg(AR531X_WD_CTRL, AR531X_WD_CTRL_IGNORE_EXPIRATION);
2103 +
2104 + _machine_restart = ar5312_restart;
2105 + ar231x_serial_setup(KSEG1ADDR(AR531X_UART0), ar5312_sys_frequency());
2106 +}
2107 +
2108 --- /dev/null
2109 +++ b/arch/mips/ar231x/ar2315.c
2110 @@ -0,0 +1,658 @@
2111 +/*
2112 + * This file is subject to the terms and conditions of the GNU General Public
2113 + * License. See the file "COPYING" in the main directory of this archive
2114 + * for more details.
2115 + *
2116 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
2117 + * Copyright (C) 2006 FON Technology, SL.
2118 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
2119 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
2120 + */
2121 +
2122 +/*
2123 + * Platform devices for Atheros SoCs
2124 + */
2125 +
2126 +#include <linux/autoconf.h>
2127 +#include <linux/init.h>
2128 +#include <linux/module.h>
2129 +#include <linux/types.h>
2130 +#include <linux/string.h>
2131 +#include <linux/platform_device.h>
2132 +#include <linux/kernel.h>
2133 +#include <linux/reboot.h>
2134 +#include <linux/delay.h>
2135 +#include <linux/leds.h>
2136 +#include <asm/bootinfo.h>
2137 +#include <asm/reboot.h>
2138 +#include <asm/time.h>
2139 +#include <asm/irq.h>
2140 +#include <asm/io.h>
2141 +#include <asm/gpio.h>
2142 +
2143 +#include <ar231x_platform.h>
2144 +#include <ar2315_regs.h>
2145 +#include <ar231x.h>
2146 +#include "devices.h"
2147 +#include "ar2315.h"
2148 +
2149 +static u32 gpiointmask = 0, gpiointval = 0;
2150 +
2151 +static inline void ar2315_gpio_irq(void)
2152 +{
2153 + u32 pend;
2154 + int bit = -1;
2155 +
2156 + /* only do one gpio interrupt at a time */
2157 + pend = (ar231x_read_reg(AR2315_GPIO_DI) ^ gpiointval) & gpiointmask;
2158 +
2159 + if (pend) {
2160 + bit = fls(pend) - 1;
2161 + pend &= ~(1 << bit);
2162 + gpiointval ^= (1 << bit);
2163 + }
2164 +
2165 + if (!pend)
2166 + ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO);
2167 +
2168 + /* Enable interrupt with edge detection */
2169 + if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(bit)) != AR2315_GPIO_CR_I(bit))
2170 + return;
2171 +
2172 + if (bit >= 0)
2173 + do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
2174 +}
2175 +
2176 +
2177 +/*
2178 + * Called when an interrupt is received, this function
2179 + * determines exactly which interrupt it was, and it
2180 + * invokes the appropriate handler.
2181 + *
2182 + * Implicitly, we also define interrupt priority by
2183 + * choosing which to dispatch first.
2184 + */
2185 +static asmlinkage void
2186 +ar2315_irq_dispatch(void)
2187 +{
2188 + int pending = read_c0_status() & read_c0_cause();
2189 +
2190 + if (pending & CAUSEF_IP3)
2191 + do_IRQ(AR2315_IRQ_WLAN0_INTRS);
2192 + else if (pending & CAUSEF_IP4)
2193 + do_IRQ(AR2315_IRQ_ENET0_INTRS);
2194 + else if (pending & CAUSEF_IP2) {
2195 + unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR);
2196 +
2197 + if (misc_intr & AR2315_ISR_SPI)
2198 + do_IRQ(AR531X_MISC_IRQ_SPI);
2199 + else if (misc_intr & AR2315_ISR_TIMER)
2200 + do_IRQ(AR531X_MISC_IRQ_TIMER);
2201 + else if (misc_intr & AR2315_ISR_AHB)
2202 + do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
2203 + else if (misc_intr & AR2315_ISR_GPIO)
2204 + ar2315_gpio_irq();
2205 + else if (misc_intr & AR2315_ISR_UART0)
2206 + do_IRQ(AR531X_MISC_IRQ_UART0);
2207 + else if (misc_intr & AR2315_ISR_WD)
2208 + do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
2209 + else
2210 + do_IRQ(AR531X_MISC_IRQ_NONE);
2211 + } else if (pending & CAUSEF_IP7)
2212 + do_IRQ(AR531X_IRQ_CPU_CLOCK);
2213 +}
2214 +
2215 +static void ar2315_set_gpiointmask(int gpio, int level)
2216 +{
2217 + u32 reg;
2218 +
2219 + reg = ar231x_read_reg(AR2315_GPIO_INT);
2220 + reg &= ~(AR2315_GPIO_INT_M | AR2315_GPIO_INT_LVL_M);
2221 + reg |= gpio | AR2315_GPIO_INT_LVL(level);
2222 + ar231x_write_reg(AR2315_GPIO_INT, reg);
2223 +}
2224 +
2225 +static void ar2315_gpio_intr_enable(unsigned int irq)
2226 +{
2227 + unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
2228 +
2229 + /* Enable interrupt with edge detection */
2230 + if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(gpio)) != AR2315_GPIO_CR_I(gpio))
2231 + return;
2232 +
2233 + gpiointmask |= (1 << gpio);
2234 + ar2315_set_gpiointmask(gpio, 3);
2235 +}
2236 +
2237 +static unsigned int ar2315_gpio_intr_startup(unsigned int irq)
2238 +{
2239 + unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
2240 +
2241 + /* reconfigure GPIO line as input */
2242 + ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
2243 + ar2315_gpio_intr_enable(irq);
2244 + return 0;
2245 +}
2246 +
2247 +static void ar2315_gpio_intr_disable(unsigned int irq)
2248 +{
2249 + unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
2250 +
2251 + /* Disable interrupt */
2252 + gpiointmask &= ~(1 << gpio);
2253 + ar2315_set_gpiointmask(gpio, 0);
2254 +}
2255 +
2256 +static void
2257 +ar2315_gpio_intr_end(unsigned int irq)
2258 +{
2259 + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
2260 + ar2315_gpio_intr_enable(irq);
2261 +}
2262 +
2263 +static struct irq_chip ar2315_gpio_intr_controller = {
2264 + .typename = "AR2315-GPIO",
2265 + .startup = ar2315_gpio_intr_startup,
2266 + .ack = ar2315_gpio_intr_disable,
2267 + .mask_ack = ar2315_gpio_intr_disable,
2268 + .mask = ar2315_gpio_intr_disable,
2269 + .unmask = ar2315_gpio_intr_enable,
2270 + .end = ar2315_gpio_intr_end,
2271 +};
2272 +
2273 +static void
2274 +ar2315_misc_intr_enable(unsigned int irq)
2275 +{
2276 + unsigned int imr;
2277 +
2278 + imr = ar231x_read_reg(AR2315_IMR);
2279 + switch(irq) {
2280 + case AR531X_MISC_IRQ_SPI:
2281 + imr |= AR2315_ISR_SPI;
2282 + break;
2283 + case AR531X_MISC_IRQ_TIMER:
2284 + imr |= AR2315_ISR_TIMER;
2285 + break;
2286 + case AR531X_MISC_IRQ_AHB_PROC:
2287 + imr |= AR2315_ISR_AHB;
2288 + break;
2289 + case AR531X_MISC_IRQ_GPIO:
2290 + imr |= AR2315_ISR_GPIO;
2291 + break;
2292 + case AR531X_MISC_IRQ_UART0:
2293 + imr |= AR2315_ISR_UART0;
2294 + break;
2295 + case AR531X_MISC_IRQ_WATCHDOG:
2296 + imr |= AR2315_ISR_WD;
2297 + break;
2298 + default:
2299 + break;
2300 + }
2301 + ar231x_write_reg(AR2315_IMR, imr);
2302 +}
2303 +
2304 +static void
2305 +ar2315_misc_intr_disable(unsigned int irq)
2306 +{
2307 + unsigned int imr;
2308 +
2309 + imr = ar231x_read_reg(AR2315_IMR);
2310 + switch(irq) {
2311 + case AR531X_MISC_IRQ_SPI:
2312 + imr &= ~AR2315_ISR_SPI;
2313 + break;
2314 + case AR531X_MISC_IRQ_TIMER:
2315 + imr &= ~AR2315_ISR_TIMER;
2316 + break;
2317 + case AR531X_MISC_IRQ_AHB_PROC:
2318 + imr &= ~AR2315_ISR_AHB;
2319 + break;
2320 + case AR531X_MISC_IRQ_GPIO:
2321 + imr &= ~AR2315_ISR_GPIO;
2322 + break;
2323 + case AR531X_MISC_IRQ_UART0:
2324 + imr &= ~AR2315_ISR_UART0;
2325 + break;
2326 + case AR531X_MISC_IRQ_WATCHDOG:
2327 + imr &= ~AR2315_ISR_WD;
2328 + break;
2329 + default:
2330 + break;
2331 + }
2332 + ar231x_write_reg(AR2315_IMR, imr);
2333 +}
2334 +
2335 +static void
2336 +ar2315_misc_intr_end(unsigned int irq)
2337 +{
2338 + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
2339 + ar2315_misc_intr_enable(irq);
2340 +}
2341 +
2342 +
2343 +static struct irq_chip ar2315_misc_intr_controller = {
2344 + .typename = "AR2315-MISC",
2345 + .ack = ar2315_misc_intr_disable,
2346 + .mask_ack = ar2315_misc_intr_disable,
2347 + .mask = ar2315_misc_intr_disable,
2348 + .unmask = ar2315_misc_intr_enable,
2349 + .end = ar2315_misc_intr_end,
2350 +};
2351 +
2352 +static irqreturn_t ar2315_ahb_proc_handler(int cpl, void *dev_id)
2353 +{
2354 + ar231x_write_reg(AR2315_AHB_ERR0, AHB_ERROR_DET);
2355 + ar231x_read_reg(AR2315_AHB_ERR1);
2356 +
2357 + printk(KERN_ERR "AHB fatal error\n");
2358 + machine_restart("AHB error"); /* Catastrophic failure */
2359 +
2360 + return IRQ_HANDLED;
2361 +}
2362 +
2363 +static struct irqaction ar2315_ahb_proc_interrupt = {
2364 + .handler = ar2315_ahb_proc_handler,
2365 + .flags = IRQF_DISABLED,
2366 + .name = "ar2315_ahb_proc_interrupt",
2367 +};
2368 +
2369 +static struct irqaction cascade = {
2370 + .handler = no_action,
2371 + .flags = IRQF_DISABLED,
2372 + .name = "cascade",
2373 +};
2374 +
2375 +void
2376 +ar2315_irq_init(void)
2377 +{
2378 + int i;
2379 +
2380 + if (!is_2315())
2381 + return;
2382 +
2383 + ar231x_irq_dispatch = ar2315_irq_dispatch;
2384 + gpiointval = ar231x_read_reg(AR2315_GPIO_DI);
2385 + for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
2386 + int irq = AR531X_MISC_IRQ_BASE + i;
2387 + set_irq_chip_and_handler(irq, &ar2315_misc_intr_controller,
2388 + handle_level_irq);
2389 + }
2390 + for (i = 0; i < AR531X_GPIO_IRQ_COUNT; i++) {
2391 + int irq = AR531X_GPIO_IRQ_BASE + i;
2392 + set_irq_chip_and_handler(irq, &ar2315_gpio_intr_controller,
2393 + handle_level_irq);
2394 + }
2395 + setup_irq(AR531X_MISC_IRQ_GPIO, &cascade);
2396 + setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar2315_ahb_proc_interrupt);
2397 + setup_irq(AR2315_IRQ_MISC_INTRS, &cascade);
2398 +}
2399 +
2400 +const struct ar231x_gpiodev ar2315_gpiodev;
2401 +
2402 +static u32
2403 +ar2315_gpio_get_output(void)
2404 +{
2405 + u32 reg;
2406 + reg = ar231x_read_reg(AR2315_GPIO_CR);
2407 + reg &= ar2315_gpiodev.valid_mask;
2408 + return reg;
2409 +}
2410 +
2411 +static u32
2412 +ar2315_gpio_set_output(u32 mask, u32 val)
2413 +{
2414 + u32 reg;
2415 +
2416 + reg = ar231x_read_reg(AR2315_GPIO_CR);
2417 + reg &= ~mask;
2418 + reg |= val;
2419 + ar231x_write_reg(AR2315_GPIO_CR, reg);
2420 + return reg;
2421 +}
2422 +
2423 +static u32
2424 +ar2315_gpio_get(void)
2425 +{
2426 + u32 reg;
2427 + reg = ar231x_read_reg(AR2315_GPIO_DI);
2428 + reg &= ar2315_gpiodev.valid_mask;
2429 + return reg;
2430 +}
2431 +
2432 +static u32
2433 +ar2315_gpio_set(u32 mask, u32 value)
2434 +{
2435 + u32 reg;
2436 + reg = ar231x_read_reg(AR2315_GPIO_DO);
2437 + reg &= ~mask;
2438 + reg |= value;
2439 + ar231x_write_reg(AR2315_GPIO_DO, reg);
2440 + return reg;
2441 +}
2442 +
2443 +const struct ar231x_gpiodev ar2315_gpiodev = {
2444 + .valid_mask = (1 << 22) - 1,
2445 + .get_output = ar2315_gpio_get_output,
2446 + .set_output = ar2315_gpio_set_output,
2447 + .get = ar2315_gpio_get,
2448 + .set = ar2315_gpio_set,
2449 +};
2450 +
2451 +static struct ar231x_eth ar2315_eth_data = {
2452 + .reset_base = AR2315_RESET,
2453 + .reset_mac = AR2315_RESET_ENET0,
2454 + .reset_phy = AR2315_RESET_EPHY0,
2455 + .phy_base = AR2315_ENET0,
2456 + .config = &ar231x_board,
2457 +};
2458 +
2459 +static struct resource ar2315_spiflash_res[] = {
2460 + {
2461 + .name = "flash_base",
2462 + .flags = IORESOURCE_MEM,
2463 + .start = KSEG1ADDR(AR2315_SPI_READ),
2464 + .end = KSEG1ADDR(AR2315_SPI_READ) + 0x1000000 - 1,
2465 + },
2466 + {
2467 + .name = "flash_regs",
2468 + .flags = IORESOURCE_MEM,
2469 + .start = 0x11300000,
2470 + .end = 0x11300012,
2471 + },
2472 +};
2473 +
2474 +static struct platform_device ar2315_spiflash = {
2475 + .id = 0,
2476 + .name = "spiflash",
2477 + .resource = ar2315_spiflash_res,
2478 + .num_resources = ARRAY_SIZE(ar2315_spiflash_res)
2479 +};
2480 +
2481 +static struct platform_device ar2315_wdt = {
2482 + .id = 0,
2483 + .name = "ar2315_wdt",
2484 +};
2485 +
2486 +#define SPI_FLASH_CTL 0x00
2487 +#define SPI_FLASH_OPCODE 0x04
2488 +#define SPI_FLASH_DATA 0x08
2489 +
2490 +static inline u32
2491 +spiflash_read_reg(int reg)
2492 +{
2493 + return ar231x_read_reg(KSEG1ADDR(AR2315_SPI) + reg);
2494 +}
2495 +
2496 +static inline void
2497 +spiflash_write_reg(int reg, u32 data)
2498 +{
2499 + ar231x_write_reg(KSEG1ADDR(AR2315_SPI) + reg, data);
2500 +}
2501 +
2502 +static u32
2503 +spiflash_wait_status(void)
2504 +{
2505 + u32 reg;
2506 +
2507 + do {
2508 + reg = spiflash_read_reg(SPI_FLASH_CTL);
2509 + } while (reg & SPI_CTL_BUSY);
2510 +
2511 + return reg;
2512 +}
2513 +
2514 +static u8
2515 +spiflash_probe(void)
2516 +{
2517 + u32 reg;
2518 +
2519 + reg = spiflash_wait_status();
2520 + reg &= ~SPI_CTL_TX_RX_CNT_MASK;
2521 + reg |= (1 << 4) | 4 | SPI_CTL_START;
2522 +
2523 + spiflash_write_reg(SPI_FLASH_OPCODE, 0xab);
2524 + spiflash_write_reg(SPI_FLASH_CTL, reg);
2525 +
2526 + reg = spiflash_wait_status();
2527 + reg = spiflash_read_reg(SPI_FLASH_DATA);
2528 + reg &= 0xff;
2529 +
2530 + return (u8) reg;
2531 +}
2532 +
2533 +
2534 +#define STM_8MBIT_SIGNATURE 0x13
2535 +#define STM_16MBIT_SIGNATURE 0x14
2536 +#define STM_32MBIT_SIGNATURE 0x15
2537 +#define STM_64MBIT_SIGNATURE 0x16
2538 +#define STM_128MBIT_SIGNATURE 0x17
2539 +
2540 +static u8 __init *
2541 +ar2315_flash_limit(void)
2542 +{
2543 + u32 flash_size = 0;
2544 +
2545 + /* probe the flash chip size */
2546 + switch(spiflash_probe()) {
2547 + case STM_8MBIT_SIGNATURE:
2548 + flash_size = 0x00100000;
2549 + break;
2550 + case STM_16MBIT_SIGNATURE:
2551 + flash_size = 0x00200000;
2552 + break;
2553 + case STM_32MBIT_SIGNATURE:
2554 + flash_size = 0x00400000;
2555 + break;
2556 + case STM_64MBIT_SIGNATURE:
2557 + flash_size = 0x00800000;
2558 + break;
2559 + case STM_128MBIT_SIGNATURE:
2560 + flash_size = 0x01000000;
2561 + break;
2562 + }
2563 +
2564 + ar2315_spiflash_res[0].end = ar2315_spiflash_res[0].start +
2565 + flash_size - 1;
2566 + return (u8 *) ar2315_spiflash_res[0].end + 1;
2567 +}
2568 +
2569 +#ifdef CONFIG_LEDS_GPIO
2570 +static struct gpio_led ar2315_leds[6];
2571 +static struct gpio_led_platform_data ar2315_led_data = {
2572 + .leds = (void *) ar2315_leds,
2573 +};
2574 +
2575 +static struct platform_device ar2315_gpio_leds = {
2576 + .name = "leds-gpio",
2577 + .id = -1,
2578 + .dev = {
2579 + .platform_data = (void *) &ar2315_led_data,
2580 + }
2581 +};
2582 +
2583 +static void __init
2584 +ar2315_init_gpio(void)
2585 +{
2586 + static char led_names[6][6];
2587 + int i, led = 0;
2588 +
2589 + ar2315_led_data.num_leds = 0;
2590 + for(i = 1; i < 8; i++)
2591 + {
2592 + if((i == AR2315_RESET_GPIO) ||
2593 + (i == ar231x_board.config->resetConfigGpio))
2594 + continue;
2595 +
2596 + if(i == ar231x_board.config->sysLedGpio)
2597 + strcpy(led_names[led], "wlan");
2598 + else
2599 + sprintf(led_names[led], "gpio%d", i);
2600 +
2601 + ar2315_leds[led].name = led_names[led];
2602 + ar2315_leds[led].gpio = i;
2603 + ar2315_leds[led].active_low = 0;
2604 + led++;
2605 + }
2606 + ar2315_led_data.num_leds = led;
2607 + platform_device_register(&ar2315_gpio_leds);
2608 +}
2609 +#else
2610 +static inline void ar2315_init_gpio(void)
2611 +{
2612 +}
2613 +#endif
2614 +
2615 +int __init
2616 +ar2315_init_devices(void)
2617 +{
2618 + if (!is_2315())
2619 + return 0;
2620 +
2621 + /* Find board configuration */
2622 + ar231x_find_config(ar2315_flash_limit());
2623 + ar2315_eth_data.macaddr = ar231x_board.config->enet0_mac;
2624 +
2625 + ar2315_init_gpio();
2626 + platform_device_register(&ar2315_wdt);
2627 + platform_device_register(&ar2315_spiflash);
2628 + ar231x_add_ethernet(0, AR2315_ENET0, AR2315_IRQ_ENET0_INTRS,
2629 + &ar2315_eth_data);
2630 + ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
2631 +
2632 + return 0;
2633 +}
2634 +
2635 +static void
2636 +ar2315_restart(char *command)
2637 +{
2638 + void (*mips_reset_vec)(void) = (void *) 0xbfc00000;
2639 +
2640 + local_irq_disable();
2641 +
2642 + /* try reset the system via reset control */
2643 + ar231x_write_reg(AR2315_COLD_RESET,AR2317_RESET_SYSTEM);
2644 +
2645 + /* Cold reset does not work on the AR2315/6, use the GPIO reset bits a workaround.
2646 + * give it some time to attempt a gpio based hardware reset
2647 + * (atheros reference design workaround) */
2648 + gpio_direction_output(AR2315_RESET_GPIO, 0);
2649 + mdelay(100);
2650 +
2651 + /* Some boards (e.g. Senao EOC-2610) don't implement the reset logic
2652 + * workaround. Attempt to jump to the mips reset location -
2653 + * the boot loader itself might be able to recover the system */
2654 + mips_reset_vec();
2655 +}
2656 +
2657 +
2658 +/*
2659 + * This table is indexed by bits 5..4 of the CLOCKCTL1 register
2660 + * to determine the predevisor value.
2661 + */
2662 +static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = { 1, 2, 4, 5 };
2663 +static int __initdata PLLC_DIVIDE_TABLE[5] = { 2, 3, 4, 6, 3 };
2664 +
2665 +static unsigned int __init
2666 +ar2315_sys_clk(unsigned int clockCtl)
2667 +{
2668 + unsigned int pllcCtrl,cpuDiv;
2669 + unsigned int pllcOut,refdiv,fdiv,divby2;
2670 + unsigned int clkDiv;
2671 +
2672 + pllcCtrl = ar231x_read_reg(AR2315_PLLC_CTL);
2673 + refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
2674 + refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
2675 + fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
2676 + divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
2677 + divby2 += 1;
2678 + pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
2679 +
2680 +
2681 + /* clkm input selected */
2682 + switch(clockCtl & CPUCLK_CLK_SEL_M) {
2683 + case 0:
2684 + case 1:
2685 + clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
2686 + break;
2687 + case 2:
2688 + clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
2689 + break;
2690 + default:
2691 + pllcOut = 40000000;
2692 + clkDiv = 1;
2693 + break;
2694 + }
2695 + cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
2696 + cpuDiv = cpuDiv * 2 ?: 1;
2697 + return (pllcOut/(clkDiv * cpuDiv));
2698 +}
2699 +
2700 +static inline unsigned int
2701 +ar2315_cpu_frequency(void)
2702 +{
2703 + return ar2315_sys_clk(ar231x_read_reg(AR2315_CPUCLK));
2704 +}
2705 +
2706 +static inline unsigned int
2707 +ar2315_apb_frequency(void)
2708 +{
2709 + return ar2315_sys_clk(ar231x_read_reg(AR2315_AMBACLK));
2710 +}
2711 +
2712 +void __init
2713 +ar2315_time_init(void)
2714 +{
2715 + if (!is_2315())
2716 + return;
2717 +
2718 + mips_hpt_frequency = ar2315_cpu_frequency() / 2;
2719 +}
2720 +
2721 +void __init
2722 +ar2315_prom_init(void)
2723 +{
2724 + u32 memsize, memcfg, devid;
2725 +
2726 + if (!is_2315())
2727 + return;
2728 +
2729 + memcfg = ar231x_read_reg(AR2315_MEM_CFG);
2730 + memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
2731 + memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
2732 + memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
2733 + memsize <<= 3;
2734 + add_memory_region(0, memsize, BOOT_MEM_RAM);
2735 +
2736 + /* Detect the hardware based on the device ID */
2737 + devid = ar231x_read_reg(AR2315_SREV) & AR2315_REV_CHIP;
2738 + switch(devid) {
2739 + case 0x90:
2740 + case 0x91:
2741 + ar231x_devtype = DEV_TYPE_AR2317;
2742 + break;
2743 + default:
2744 + ar231x_devtype = DEV_TYPE_AR2315;
2745 + break;
2746 + }
2747 + ar231x_gpiodev = &ar2315_gpiodev;
2748 + ar231x_board.devid = devid;
2749 +}
2750 +
2751 +void __init
2752 +ar2315_plat_setup(void)
2753 +{
2754 + u32 config;
2755 +
2756 + if (!is_2315())
2757 + return;
2758 +
2759 + /* Clear any lingering AHB errors */
2760 + config = read_c0_config();
2761 + write_c0_config(config & ~0x3);
2762 + ar231x_write_reg(AR2315_AHB_ERR0,AHB_ERROR_DET);
2763 + ar231x_read_reg(AR2315_AHB_ERR1);
2764 + ar231x_write_reg(AR2315_WDC, AR2315_WDC_IGNORE_EXPIRATION);
2765 +
2766 + _machine_restart = ar2315_restart;
2767 + ar231x_serial_setup(KSEG1ADDR(AR2315_UART0), ar2315_apb_frequency());
2768 +}
2769 --- /dev/null
2770 +++ b/arch/mips/ar231x/ar2315.h
2771 @@ -0,0 +1,37 @@
2772 +#ifndef __AR2315_H
2773 +#define __AR2315_H
2774 +
2775 +#ifdef CONFIG_ATHEROS_AR2315
2776 +
2777 +extern void ar2315_irq_init(void);
2778 +extern int ar2315_init_devices(void);
2779 +extern void ar2315_prom_init(void);
2780 +extern void ar2315_plat_setup(void);
2781 +extern void ar2315_time_init(void);
2782 +
2783 +#else
2784 +
2785 +static inline void ar2315_irq_init(void)
2786 +{
2787 +}
2788 +
2789 +static inline int ar2315_init_devices(void)
2790 +{
2791 + return 0;
2792 +}
2793 +
2794 +static inline void ar2315_prom_init(void)
2795 +{
2796 +}
2797 +
2798 +static inline void ar2315_plat_setup(void)
2799 +{
2800 +}
2801 +
2802 +static inline void ar2315_time_init(void)
2803 +{
2804 +}
2805 +
2806 +#endif
2807 +
2808 +#endif
2809 --- /dev/null
2810 +++ b/arch/mips/ar231x/ar5312.h
2811 @@ -0,0 +1,38 @@
2812 +#ifndef __AR5312_H
2813 +#define __AR5312_H
2814 +
2815 +#ifdef CONFIG_ATHEROS_AR5312
2816 +
2817 +extern void ar5312_irq_init(void);
2818 +extern int ar5312_init_devices(void);
2819 +extern void ar5312_prom_init(void);
2820 +extern void ar5312_plat_setup(void);
2821 +extern void ar5312_time_init(void);
2822 +extern void ar5312_time_init(void);
2823 +
2824 +#else
2825 +
2826 +static inline void ar5312_irq_init(void)
2827 +{
2828 +}
2829 +
2830 +static inline int ar5312_init_devices(void)
2831 +{
2832 + return 0;
2833 +}
2834 +
2835 +static inline void ar5312_prom_init(void)
2836 +{
2837 +}
2838 +
2839 +static inline void ar5312_plat_setup(void)
2840 +{
2841 +}
2842 +
2843 +static inline void ar5312_time_init(void)
2844 +{
2845 +}
2846 +
2847 +#endif
2848 +
2849 +#endif
2850 --- /dev/null
2851 +++ b/arch/mips/include/asm/mach-ar231x/ar231x.h
2852 @@ -0,0 +1,54 @@
2853 +#ifndef __AR531X_H
2854 +#define __AR531X_H
2855 +
2856 +#define AR531X_MISC_IRQ_BASE 0x20
2857 +#define AR531X_GPIO_IRQ_BASE 0x30
2858 +
2859 +/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
2860 +#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0
2861 +#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
2862 +
2863 +/* Miscellaneous interrupts, which share IP6 */
2864 +#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0
2865 +#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1
2866 +#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2
2867 +#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3
2868 +#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4
2869 +#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5
2870 +#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6
2871 +#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7
2872 +#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8
2873 +#define AR531X_MISC_IRQ_SPI AR531X_MISC_IRQ_BASE+9
2874 +#define AR531X_MISC_IRQ_COUNT 10
2875 +
2876 +/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
2877 +#define AR531X_GPIO_IRQ_NONE AR531X_GPIO_IRQ_BASE+0
2878 +#define AR531X_GPIO_IRQ(n) AR531X_GPIO_IRQ_BASE+n
2879 +#define AR531X_GPIO_IRQ_COUNT 22
2880 +
2881 +static inline u32
2882 +ar231x_read_reg(u32 reg)
2883 +{
2884 + return __raw_readl((u32 *) KSEG1ADDR(reg));
2885 +}
2886 +
2887 +static inline void
2888 +ar231x_write_reg(u32 reg, u32 val)
2889 +{
2890 + __raw_writel(val, (u32 *) KSEG1ADDR(reg));
2891 +}
2892 +
2893 +static inline u32
2894 +ar231x_mask_reg(u32 reg, u32 mask, u32 val)
2895 +{
2896 + u32 ret;
2897 +
2898 + ret = ar231x_read_reg(reg);
2899 + ret &= ~mask;
2900 + ret |= val;
2901 + ar231x_write_reg(reg, ret);
2902 +
2903 + return ret;
2904 +}
2905 +
2906 +#endif
2907 --- /dev/null
2908 +++ b/arch/mips/ar231x/devices.h
2909 @@ -0,0 +1,37 @@
2910 +#ifndef __AR231X_DEVICES_H
2911 +#define __AR231X_DEVICES_H
2912 +
2913 +enum {
2914 + /* handled by ar5312.c */
2915 + DEV_TYPE_AR2312,
2916 + DEV_TYPE_AR2313,
2917 + DEV_TYPE_AR5312,
2918 +
2919 + /* handled by ar2315.c */
2920 + DEV_TYPE_AR2315,
2921 + DEV_TYPE_AR2316,
2922 + DEV_TYPE_AR2317,
2923 +
2924 + DEV_TYPE_UNKNOWN
2925 +};
2926 +
2927 +extern int ar231x_devtype;
2928 +extern struct ar231x_board_config ar231x_board;
2929 +extern asmlinkage void (*ar231x_irq_dispatch)(void);
2930 +
2931 +extern int ar231x_find_config(u8 *flash_limit);
2932 +extern void ar231x_serial_setup(u32 mapbase, unsigned int uartclk);
2933 +extern int ar231x_add_wmac(int nr, u32 base, int irq);
2934 +extern int ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata);
2935 +
2936 +static inline bool is_2315(void)
2937 +{
2938 + return (current_cpu_data.cputype == CPU_4KEC);
2939 +}
2940 +
2941 +static inline bool is_5312(void)
2942 +{
2943 + return !is_2315();
2944 +}
2945 +
2946 +#endif
2947 --- /dev/null
2948 +++ b/arch/mips/ar231x/devices.c
2949 @@ -0,0 +1,175 @@
2950 +#include <linux/kernel.h>
2951 +#include <linux/init.h>
2952 +#include <linux/serial.h>
2953 +#include <linux/serial_core.h>
2954 +#include <linux/serial_8250.h>
2955 +#include <linux/platform_device.h>
2956 +#include <ar231x_platform.h>
2957 +#include <ar231x.h>
2958 +#include "devices.h"
2959 +#include "ar5312.h"
2960 +#include "ar2315.h"
2961 +
2962 +struct ar231x_board_config ar231x_board;
2963 +int ar231x_devtype = DEV_TYPE_UNKNOWN;
2964 +const struct ar231x_gpiodev *ar231x_gpiodev;
2965 +EXPORT_SYMBOL(ar231x_gpiodev);
2966 +
2967 +static struct resource ar231x_eth0_res[] = {
2968 + {
2969 + .name = "eth0_membase",
2970 + .flags = IORESOURCE_MEM,
2971 + },
2972 + {
2973 + .name = "eth0_irq",
2974 + .flags = IORESOURCE_IRQ,
2975 + }
2976 +};
2977 +
2978 +static struct resource ar231x_eth1_res[] = {
2979 + {
2980 + .name = "eth1_membase",
2981 + .flags = IORESOURCE_MEM,
2982 + },
2983 + {
2984 + .name = "eth1_irq",
2985 + .flags = IORESOURCE_IRQ,
2986 + }
2987 +};
2988 +
2989 +static struct platform_device ar231x_eth[] = {
2990 + {
2991 + .id = 0,
2992 + .name = "ar231x-eth",
2993 + .resource = ar231x_eth0_res,
2994 + .num_resources = ARRAY_SIZE(ar231x_eth0_res)
2995 + },
2996 + {
2997 + .id = 1,
2998 + .name = "ar231x-eth",
2999 + .resource = ar231x_eth1_res,
3000 + .num_resources = ARRAY_SIZE(ar231x_eth1_res)
3001 + }
3002 +};
3003 +
3004 +static struct resource ar231x_wmac0_res[] = {
3005 + {
3006 + .name = "wmac0_membase",
3007 + .flags = IORESOURCE_MEM,
3008 + },
3009 + {
3010 + .name = "wmac0_irq",
3011 + .flags = IORESOURCE_IRQ,
3012 + }
3013 +};
3014 +
3015 +static struct resource ar231x_wmac1_res[] = {
3016 + {
3017 + .name = "wmac1_membase",
3018 + .flags = IORESOURCE_MEM,
3019 + },
3020 + {
3021 + .name = "wmac1_irq",
3022 + .flags = IORESOURCE_IRQ,
3023 + }
3024 +};
3025 +
3026 +
3027 +static struct platform_device ar231x_wmac[] = {
3028 + {
3029 + .id = 0,
3030 + .name = "ar231x-wmac",
3031 + .resource = ar231x_wmac0_res,
3032 + .num_resources = ARRAY_SIZE(ar231x_wmac0_res),
3033 + .dev.platform_data = &ar231x_board,
3034 + },
3035 + {
3036 + .id = 1,
3037 + .name = "ar231x-wmac",
3038 + .resource = ar231x_wmac1_res,
3039 + .num_resources = ARRAY_SIZE(ar231x_wmac1_res),
3040 + .dev.platform_data = &ar231x_board,
3041 + },
3042 +};
3043 +
3044 +static const char *devtype_strings[] = {
3045 + [DEV_TYPE_AR5312] = "Atheros AR5312",
3046 + [DEV_TYPE_AR2312] = "Atheros AR2312",
3047 + [DEV_TYPE_AR2313] = "Atheros AR2313",
3048 + [DEV_TYPE_AR2315] = "Atheros AR2315",
3049 + [DEV_TYPE_AR2316] = "Atheros AR2316",
3050 + [DEV_TYPE_AR2317] = "Atheros AR2317",
3051 + [DEV_TYPE_UNKNOWN] = "Atheros (unknown)",
3052 +};
3053 +
3054 +const char *get_system_type(void)
3055 +{
3056 + if ((ar231x_devtype >= ARRAY_SIZE(devtype_strings)) ||
3057 + !devtype_strings[ar231x_devtype])
3058 + return devtype_strings[DEV_TYPE_UNKNOWN];
3059 + return devtype_strings[ar231x_devtype];
3060 +}
3061 +
3062 +
3063 +int __init
3064 +ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata)
3065 +{
3066 + struct resource *res;
3067 +
3068 + ar231x_eth[nr].dev.platform_data = pdata;
3069 + res = &ar231x_eth[nr].resource[0];
3070 + res->start = base;
3071 + res->end = base + 0x2000 - 1;
3072 + res++;
3073 + res->start = irq;
3074 + res->end = irq;
3075 + return platform_device_register(&ar231x_eth[nr]);
3076 +}
3077 +
3078 +void __init
3079 +ar231x_serial_setup(u32 mapbase, unsigned int uartclk)
3080 +{
3081 + struct uart_port s;
3082 +
3083 + memset(&s, 0, sizeof(s));
3084 +
3085 + s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
3086 + s.iotype = UPIO_MEM;
3087 + s.irq = AR531X_MISC_IRQ_UART0;
3088 + s.regshift = 2;
3089 + s.mapbase = mapbase;
3090 + s.uartclk = uartclk;
3091 + s.membase = (void __iomem *)s.mapbase;
3092 +
3093 + early_serial_setup(&s);
3094 +}
3095 +
3096 +int __init
3097 +ar231x_add_wmac(int nr, u32 base, int irq)
3098 +{
3099 + struct resource *res;
3100 +
3101 + ar231x_wmac[nr].dev.platform_data = &ar231x_board;
3102 + res = &ar231x_wmac[nr].resource[0];
3103 + res->start = base;
3104 + res->end = base + 0x10000 - 1;
3105 + res++;
3106 + res->start = irq;
3107 + res->end = irq;
3108 + return platform_device_register(&ar231x_wmac[nr]);
3109 +}
3110 +
3111 +static int __init ar231x_register_devices(void)
3112 +{
3113 + static struct resource res = {
3114 + .start = 0xFFFFFFFF,
3115 + };
3116 +
3117 + platform_device_register_simple("GPIODEV", 0, &res, 1);
3118 + ar5312_init_devices();
3119 + ar2315_init_devices();
3120 +
3121 + return 0;
3122 +}
3123 +
3124 +device_initcall(ar231x_register_devices);
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