1 --- a/arch/mips/Kconfig
2 +++ b/arch/mips/Kconfig
3 @@ -60,6 +60,19 @@ config BCM47XX
5 Support for BCM47XX based boards
8 + bool "Atheros 231x/531x SoC support"
11 + select DMA_NONCOHERENT
13 + select SYS_HAS_CPU_MIPS32_R1
14 + select SYS_SUPPORTS_BIG_ENDIAN
15 + select SYS_SUPPORTS_32BIT_KERNEL
18 + Support for AR231x and AR531x based boards
23 @@ -597,6 +610,7 @@ config WR_PPMC
27 +source "arch/mips/ar231x/Kconfig"
28 source "arch/mips/alchemy/Kconfig"
29 source "arch/mips/basler/excite/Kconfig"
30 source "arch/mips/emma/Kconfig"
31 --- a/arch/mips/Makefile
32 +++ b/arch/mips/Makefile
33 @@ -278,6 +278,13 @@ libs-$(CONFIG_MIPS_XXS1500) += arch/mips
34 load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
37 +# Atheros AR5312/AR2312 WiSoC
39 +core-$(CONFIG_ATHEROS) += arch/mips/ar231x/
40 +cflags-$(CONFIG_ATHEROS) += -I$(srctree)/arch/mips/include/asm/mach-ar231x
41 +load-$(CONFIG_ATHEROS) += 0xffffffff80041000
46 core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
48 +++ b/arch/mips/ar231x/Kconfig
50 +config ATHEROS_AR5312
51 + bool "Atheros 5312/2312+ support"
55 +config ATHEROS_AR2315
56 + bool "Atheros 2315+ support"
58 + select DMA_NONCOHERENT
62 + select SYS_HAS_CPU_MIPS32_R1
63 + select SYS_SUPPORTS_32BIT_KERNEL
64 + select SYS_SUPPORTS_BIG_ENDIAN
68 +config ATHEROS_AR2315_PCI
70 + depends on ATHEROS_AR2315
73 + select USB_ARCH_HAS_HCD
74 + select USB_ARCH_HAS_OHCI
75 + select USB_ARCH_HAS_EHCI
78 +++ b/arch/mips/ar231x/Makefile
81 +# This file is subject to the terms and conditions of the GNU General Public
82 +# License. See the file "COPYING" in the main directory of this archive
85 +# Copyright (C) 2006 FON Technology, SL.
86 +# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
87 +# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
90 +obj-y += board.o prom.o devices.o
91 +obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
92 +obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
93 +obj-$(CONFIG_ATHEROS_AR2315_PCI) += pci.o
95 +++ b/arch/mips/ar231x/board.c
98 + * This file is subject to the terms and conditions of the GNU General Public
99 + * License. See the file "COPYING" in the main directory of this archive
100 + * for more details.
102 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
103 + * Copyright (C) 2006 FON Technology, SL.
104 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
105 + * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
108 +#include <linux/autoconf.h>
109 +#include <linux/init.h>
110 +#include <linux/module.h>
111 +#include <linux/types.h>
112 +#include <linux/string.h>
113 +#include <linux/platform_device.h>
114 +#include <linux/kernel.h>
115 +#include <linux/random.h>
116 +#include <linux/etherdevice.h>
117 +#include <asm/irq_cpu.h>
118 +#include <asm/reboot.h>
121 +#include <ar231x_platform.h>
122 +#include "devices.h"
126 +void (*ar231x_irq_dispatch)(void);
129 +check_radio_magic(u8 *addr)
131 + addr += 0x7a; /* offset for flash magic */
132 + if ((addr[0] == 0x5a) && (addr[1] == 0xa5)) {
139 +check_board_data(u8 *flash_limit, u8 *addr, bool broken)
141 + /* config magic found */
142 + if (*((u32 *)addr) == AR531X_BD_MAGIC)
148 + if (check_radio_magic(addr + 0xf8))
149 + ar231x_board.radio = addr + 0xf8;
150 + if ((addr < flash_limit + 0x10000) &&
151 + check_radio_magic(addr + 0x10000))
152 + ar231x_board.radio = addr + 0x10000;
154 + if (ar231x_board.radio) {
155 + /* broken board data detected, use radio data to find the offset,
156 + * user will fix this */
163 +find_board_config(u8 *flash_limit, bool broken)
168 + for (addr = flash_limit - 0x1000;
169 + addr >= flash_limit - 0x30000;
172 + if (check_board_data(flash_limit, addr, broken)) {
185 +find_radio_config(u8 *flash_limit, u8 *board_config)
191 + * Now find the start of Radio Configuration data, using heuristics:
192 + * Search forward from Board Configuration data by 0x1000 bytes
193 + * at a time until we find non-0xffffffff.
196 + for (radio_config = board_config + 0x1000;
197 + (radio_config < flash_limit);
198 + radio_config += 0x1000) {
199 + if ((*(u32 *)radio_config != 0xffffffff) &&
200 + check_radio_magic(radio_config)) {
206 + /* AR2316 relocates radio config to new location */
208 + for (radio_config = board_config + 0xf8;
209 + (radio_config < flash_limit - 0x1000 + 0xf8);
210 + radio_config += 0x1000) {
211 + if ((*(u32 *)radio_config != 0xffffffff) &&
212 + check_radio_magic(radio_config)) {
220 + printk("Could not find Radio Configuration data\n");
224 + return (u8 *) radio_config;
228 +ar231x_find_config(u8 *flash_limit)
230 + struct ar231x_boarddata *config;
231 + unsigned int rcfg_size;
232 + int broken_boarddata = 0;
238 + ar231x_board.config = NULL;
239 + ar231x_board.radio = NULL;
240 + /* Copy the board and radio data to RAM, because accessing the mapped
241 + * memory of the flash directly after booting is not safe */
243 + /* Try to find valid board and radio data */
244 + bcfg = find_board_config(flash_limit, false);
246 + /* If that fails, try to at least find valid radio data */
248 + bcfg = find_board_config(flash_limit, true);
249 + broken_boarddata = 1;
253 + printk(KERN_WARNING "WARNING: No board configuration data found!\n");
257 + board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
258 + ar231x_board.config = (struct ar231x_boarddata *) board_data;
259 + memcpy(board_data, bcfg, 0x100);
260 + if (broken_boarddata) {
261 + printk(KERN_WARNING "WARNING: broken board data detected\n");
262 + config = ar231x_board.config;
263 + if (!memcmp(config->enet0_mac, "\x00\x00\x00\x00\x00\x00", 6)) {
264 + printk(KERN_INFO "Fixing up empty mac addresses\n");
265 + random_ether_addr(config->enet0_mac);
266 + random_ether_addr(config->enet1_mac);
271 + /* Radio config starts 0x100 bytes after board config, regardless
272 + * of what the physical layout on the flash chip looks like */
274 + if (ar231x_board.radio)
275 + rcfg = (u8 *) ar231x_board.radio;
277 + rcfg = find_radio_config(flash_limit, bcfg);
282 + radio_data = board_data + 0x100 + ((rcfg - bcfg) & 0xfff);
283 + ar231x_board.radio = radio_data;
284 + offset = radio_data - board_data;
285 + printk(KERN_INFO "Radio config found at offset 0x%x(0x%x)\n", rcfg - bcfg, offset);
286 + rcfg_size = BOARD_CONFIG_BUFSZ - offset;
287 + memcpy(radio_data, rcfg, rcfg_size);
295 + local_irq_disable();
300 +plat_mem_setup(void)
302 + _machine_halt = ar231x_halt;
303 + pm_power_off = ar231x_halt;
305 + ar5312_plat_setup();
306 + ar2315_plat_setup();
308 + /* Disable data watchpoints */
309 + write_c0_watchlo0(0);
314 +plat_irq_dispatch(void)
316 + ar231x_irq_dispatch();
320 +plat_time_init(void)
322 + ar5312_time_init();
323 + ar2315_time_init();
326 +unsigned int __cpuinit
327 +get_c0_compare_irq(void)
329 + return CP0_LEGACY_COMPARE_IRQ;
335 + clear_c0_status(ST0_IM);
336 + mips_cpu_irq_init();
338 + /* Initialize interrupt controllers */
345 +++ b/arch/mips/ar231x/prom.c
348 + * This file is subject to the terms and conditions of the GNU General Public
349 + * License. See the file "COPYING" in the main directory of this archive
350 + * for more details.
352 + * Copyright MontaVista Software Inc
353 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
354 + * Copyright (C) 2006 FON Technology, SL.
355 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
356 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
360 + * Prom setup file for ar531x
363 +#include <linux/init.h>
364 +#include <linux/autoconf.h>
365 +#include <linux/kernel.h>
366 +#include <linux/string.h>
367 +#include <linux/mm.h>
368 +#include <linux/bootmem.h>
370 +#include <asm/bootinfo.h>
371 +#include <asm/addrspace.h>
375 +void __init prom_init(void)
377 + ar5312_prom_init();
378 + ar2315_prom_init();
381 +void __init prom_free_prom_memory(void)
385 +++ b/arch/mips/ar231x/reset.c
387 +#include <linux/module.h>
388 +#include <linux/timer.h>
389 +#include <linux/interrupt.h>
390 +#include <linux/kobject.h>
391 +#include <linux/workqueue.h>
392 +#include <linux/skbuff.h>
393 +#include <linux/netlink.h>
394 +#include <net/sock.h>
395 +#include <asm/uaccess.h>
398 +#define AR531X_RESET_GPIO_IRQ (AR531X_GPIO_IRQ(bcfg->resetConfigGpio))
401 + struct work_struct wq;
403 + unsigned long jiffies;
406 +static struct ar231x_boarddata *bcfg;
407 +static struct timer_list rst_button_timer;
409 +extern struct sock *uevent_sock;
410 +extern u64 uevent_next_seqnum(void);
411 +static unsigned long seen;
413 +static inline void add_msg(struct sk_buff *skb, char *msg)
416 + scratch = skb_put(skb, strlen(msg) + 1);
417 + sprintf(scratch, msg);
420 +static void hotplug_button(struct work_struct *wq)
422 + struct sk_buff *skb;
423 + struct event_t *event;
428 + event = container_of(wq, struct event_t, wq);
432 + /* allocate message with the maximum possible size */
433 + s = event->set ? "pressed" : "released";
434 + len = strlen(s) + 2;
435 + skb = alloc_skb(len + 2048, GFP_KERNEL);
440 + scratch = skb_put(skb, len);
441 + sprintf(scratch, "%s@",s);
443 + /* copy keys to our continuous event payload buffer */
444 + add_msg(skb, "HOME=/");
445 + add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
446 + add_msg(skb, "SUBSYSTEM=button");
447 + add_msg(skb, "BUTTON=reset");
448 + add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released"));
449 + sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ);
451 + snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
454 + NETLINK_CB(skb).dst_group = 1;
455 + netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL);
461 +static int no_release_workaround = 1;
464 +reset_button_poll(unsigned long unused)
466 + struct event_t *event;
469 + if(!no_release_workaround)
472 + DO_AR2315(gpio = sysRegRead(AR2315_GPIO_DI);)
473 + gpio &= 1 << (AR531X_RESET_GPIO_IRQ - AR531X_GPIO_IRQ_BASE);
476 + rst_button_timer.expires = jiffies + (HZ / 4);
477 + add_timer(&rst_button_timer);
479 + event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
482 + printk("Could not alloc hotplug event\n");
486 + event->jiffies = jiffies;
487 + INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
488 + schedule_work(&event->wq);
492 +static irqreturn_t button_handler(int irq, void *dev_id)
494 + static int pressed = 0;
495 + struct event_t *event;
498 + event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
502 + pressed = !pressed;
504 + DO_AR2315(gpio = sysRegRead(AR2315_GPIO_DI);)
505 + gpio &= 1 << (irq - AR531X_GPIO_IRQ_BASE);
509 + no_release_workaround = 0;
511 + event->jiffies = jiffies;
513 + INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
514 + schedule_work(&event->wq);
517 + if(event->set && no_release_workaround)
518 + mod_timer(&rst_button_timer, jiffies + (HZ / 4));
520 + return IRQ_HANDLED;
523 +void ar231x_disable_reset_button(void)
525 + disable_irq(AR531X_RESET_GPIO_IRQ);
528 +EXPORT_SYMBOL(ar231x_disable_reset_button);
530 +int __init ar231x_init_reset(void)
532 + bcfg = (struct ar231x_boarddata *) board_config;
536 + init_timer(&rst_button_timer);
537 + rst_button_timer.function = reset_button_poll;
538 + rst_button_timer.expires = jiffies + HZ / 50;
539 + add_timer(&rst_button_timer);
541 + request_irq(AR531X_RESET_GPIO_IRQ, &button_handler, IRQF_SAMPLE_RANDOM, "ar231x_reset", NULL);
548 +module_init(ar231x_init_reset);
550 +++ b/arch/mips/include/asm/mach-ar231x/ar231x_platform.h
552 +#ifndef __AR531X_PLATFORM_H
553 +#define __AR531X_PLATFORM_H
556 + * This is board-specific data that is stored in a "fixed" location in flash.
557 + * It is shared across operating systems, so it should not be changed lightly.
558 + * The main reason we need it is in order to extract the ethernet MAC
561 +struct ar231x_boarddata {
562 + u32 magic; /* board data is valid */
563 +#define AR531X_BD_MAGIC 0x35333131 /* "5311", for all 531x platforms */
564 + u16 cksum; /* checksum (starting with BD_REV 2) */
565 + u16 rev; /* revision of this struct */
567 + char boardName[64]; /* Name of board */
568 + u16 major; /* Board major number */
569 + u16 minor; /* Board minor number */
570 + u32 flags; /* Board configuration */
571 +#define BD_ENET0 0x00000001 /* ENET0 is stuffed */
572 +#define BD_ENET1 0x00000002 /* ENET1 is stuffed */
573 +#define BD_UART1 0x00000004 /* UART1 is stuffed */
574 +#define BD_UART0 0x00000008 /* UART0 is stuffed (dma) */
575 +#define BD_RSTFACTORY 0x00000010 /* Reset factory defaults stuffed */
576 +#define BD_SYSLED 0x00000020 /* System LED stuffed */
577 +#define BD_EXTUARTCLK 0x00000040 /* External UART clock */
578 +#define BD_CPUFREQ 0x00000080 /* cpu freq is valid in nvram */
579 +#define BD_SYSFREQ 0x00000100 /* sys freq is set in nvram */
580 +#define BD_WLAN0 0x00000200 /* Enable WLAN0 */
581 +#define BD_MEMCAP 0x00000400 /* CAP SDRAM @ memCap for testing */
582 +#define BD_DISWATCHDOG 0x00000800 /* disable system watchdog */
583 +#define BD_WLAN1 0x00001000 /* Enable WLAN1 (ar5212) */
584 +#define BD_ISCASPER 0x00002000 /* FLAG for AR2312 */
585 +#define BD_WLAN0_2G_EN 0x00004000 /* FLAG for radio0_2G */
586 +#define BD_WLAN0_5G_EN 0x00008000 /* FLAG for radio0_2G */
587 +#define BD_WLAN1_2G_EN 0x00020000 /* FLAG for radio0_2G */
588 +#define BD_WLAN1_5G_EN 0x00040000 /* FLAG for radio0_2G */
589 + u16 resetConfigGpio; /* Reset factory GPIO pin */
590 + u16 sysLedGpio; /* System LED GPIO pin */
592 + u32 cpuFreq; /* CPU core frequency in Hz */
593 + u32 sysFreq; /* System frequency in Hz */
594 + u32 cntFreq; /* Calculated C0_COUNT frequency */
600 + u16 pciId; /* Pseudo PCIID for common code */
601 + u16 memCap; /* cap bank1 in MB */
604 + u8 wlan1_mac[6]; /* (ar5212) */
607 +#define BOARD_CONFIG_BUFSZ 0x1000
610 + * Platform device information for the Wireless MAC
612 +struct ar231x_board_config {
615 + /* board config data */
616 + struct ar231x_boarddata *config;
618 + /* radio calibration data */
623 + * Platform device information for the Ethernet MAC
630 + struct ar231x_board_config *config;
634 +#endif /* __AR531X_PLATFORM_H */
636 +++ b/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h
639 + * Atheros SoC specific CPU feature overrides
641 + * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
643 + * This file was derived from: include/asm-mips/cpu-features.h
644 + * Copyright (C) 2003, 2004 Ralf Baechle
645 + * Copyright (C) 2004 Maciej W. Rozycki
647 + * This program is free software; you can redistribute it and/or modify it
648 + * under the terms of the GNU General Public License version 2 as published
649 + * by the Free Software Foundation.
652 +#ifndef __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
653 +#define __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
656 + * The ATHEROS SoCs have MIPS 4Kc/4KEc core.
658 +#define cpu_has_tlb 1
659 +#define cpu_has_4kex 1
660 +#define cpu_has_3k_cache 0
661 +#define cpu_has_4k_cache 1
662 +#define cpu_has_tx39_cache 0
663 +#define cpu_has_sb1_cache 0
664 +#define cpu_has_fpu 0
665 +#define cpu_has_32fpr 0
666 +#define cpu_has_counter 1
667 +/* #define cpu_has_watch ? */
668 +/* #define cpu_has_divec ? */
669 +/* #define cpu_has_vce ? */
670 +/* #define cpu_has_cache_cdex_p ? */
671 +/* #define cpu_has_cache_cdex_s ? */
672 +/* #define cpu_has_prefetch ? */
673 +/* #define cpu_has_mcheck ? */
674 +#define cpu_has_ejtag 1
676 +#if !defined(CONFIG_ATHEROS_AR5312)
677 +# define cpu_has_llsc 1
680 + * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
681 + * ll/sc instructions.
683 +# define cpu_has_llsc 0
686 +#define cpu_has_mips16 0
687 +#define cpu_has_mdmx 0
688 +#define cpu_has_mips3d 0
689 +#define cpu_has_smartmips 0
691 +/* #define cpu_has_vtag_icache ? */
692 +/* #define cpu_has_dc_aliases ? */
693 +/* #define cpu_has_ic_fills_f_dc ? */
694 +/* #define cpu_has_pindexed_dcache ? */
696 +/* #define cpu_icache_snoops_remote_store ? */
698 +#define cpu_has_mips32r1 1
700 +#if !defined(CONFIG_ATHEROS_AR5312)
701 +# define cpu_has_mips32r2 1
704 +#define cpu_has_mips64r1 0
705 +#define cpu_has_mips64r2 0
707 +#define cpu_has_dsp 0
708 +#define cpu_has_mipsmt 0
710 +/* #define cpu_has_nofpuex ? */
711 +#define cpu_has_64bits 0
712 +#define cpu_has_64bit_zero_reg 0
713 +#define cpu_has_64bit_gp_regs 0
714 +#define cpu_has_64bit_addresses 0
716 +/* #define cpu_has_inclusive_pcaches ? */
718 +/* #define cpu_dcache_line_size() ? */
719 +/* #define cpu_icache_line_size() ? */
721 +#endif /* __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H */
723 +++ b/arch/mips/include/asm/mach-ar231x/dma-coherence.h
726 + * This file is subject to the terms and conditions of the GNU General Public
727 + * License. See the file "COPYING" in the main directory of this archive
728 + * for more details.
730 + * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
731 + * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
734 +#ifndef __ASM_MACH_GENERIC_DMA_COHERENCE_H
735 +#define __ASM_MACH_GENERIC_DMA_COHERENCE_H
737 +#define PCI_DMA_OFFSET 0x20000000
741 +static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
743 + return virt_to_phys(addr) + (dev != NULL ? PCI_DMA_OFFSET : 0);
746 +static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
748 + return page_to_phys(page) + (dev != NULL ? PCI_DMA_OFFSET : 0);
751 +static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
753 + return (dma_addr > PCI_DMA_OFFSET ? dma_addr - PCI_DMA_OFFSET : dma_addr);
756 +static void plat_unmap_dma_mem(dma_addr_t dma_addr)
760 +static inline int plat_device_is_coherent(struct device *dev)
765 +#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
767 +++ b/arch/mips/include/asm/mach-ar231x/gpio.h
769 +#ifndef _ATHEROS_GPIO_H_
770 +#define _ATHEROS_GPIO_H_
774 +struct ar231x_gpiodev {
776 + u32 (*get_output)(void);
777 + u32 (*set_output)(u32 mask, u32 val);
779 + u32 (*set)(u32 mask, u32 val);
782 +extern const struct ar231x_gpiodev *ar231x_gpiodev;
785 + * Wrappers for the generic GPIO layer
788 +static inline int gpio_direction_input(unsigned gpio) {
789 + u32 mask = 1 << gpio;
791 + if (!(ar231x_gpiodev->valid_mask & mask))
794 + ar231x_gpiodev->set_output(mask, 0);
798 +static inline void gpio_set_value(unsigned gpio, int value) {
799 + u32 mask = 1 << gpio;
801 + if (!(ar231x_gpiodev->valid_mask & mask))
804 + ar231x_gpiodev->set(mask, (!!value) * mask);
807 +static inline int gpio_direction_output(unsigned gpio, int value) {
808 + u32 mask = 1 << gpio;
810 + if (!(ar231x_gpiodev->valid_mask & mask))
813 + ar231x_gpiodev->set_output(mask, mask);
814 + ar231x_gpiodev->set(mask, (!!value) * mask);
818 +/* Reads the gpio pin. Unchecked function */
819 +static inline int gpio_get_value(unsigned gpio) {
820 + u32 mask = 1 << gpio;
822 + if (!(ar231x_gpiodev->valid_mask & mask))
825 + return !!(ar231x_gpiodev->get() & mask);
828 +static inline int gpio_request(unsigned gpio, const char *label) {
832 +static inline void gpio_free(unsigned gpio) {
835 +/* Returns IRQ to attach for gpio. Unchecked function */
836 +static inline int gpio_to_irq(unsigned gpio) {
837 + return AR531X_GPIO_IRQ(gpio);
840 +/* Returns gpio for IRQ attached. Unchecked function */
841 +static inline int irq_to_gpio(unsigned irq) {
842 + return (irq - (AR531X_GPIO_IRQ(0)));
845 +#include <asm-generic/gpio.h> /* cansleep wrappers */
849 +++ b/arch/mips/include/asm/mach-ar231x/reset.h
851 +#ifndef __AR531X_RESET_H
852 +#define __AR531X_RESET_H
854 +void ar531x_disable_reset_button(void);
856 +#endif /* __AR531X_RESET_H */
858 +++ b/arch/mips/include/asm/mach-ar231x/war.h
861 + * This file is subject to the terms and conditions of the GNU General Public
862 + * License. See the file "COPYING" in the main directory of this archive
863 + * for more details.
865 + * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
867 +#ifndef __ASM_MIPS_MACH_ATHEROS_WAR_H
868 +#define __ASM_MIPS_MACH_ATHEROS_WAR_H
870 +#define R4600_V1_INDEX_ICACHEOP_WAR 0
871 +#define R4600_V1_HIT_CACHEOP_WAR 0
872 +#define R4600_V2_HIT_CACHEOP_WAR 0
873 +#define R5432_CP0_INTERRUPT_WAR 0
874 +#define BCM1250_M3_WAR 0
875 +#define SIBYTE_1956_WAR 0
876 +#define MIPS4K_ICACHE_REFILL_WAR 0
877 +#define MIPS_CACHE_SYNC_WAR 0
878 +#define TX49XX_ICACHE_INDEX_INV_WAR 0
879 +#define RM9000_CDEX_SMP_WAR 0
880 +#define ICACHE_REFILLS_WORKAROUND_WAR 0
881 +#define R10000_LLSC_WAR 0
882 +#define MIPS34K_MISSED_ITLB_WAR 0
884 +#endif /* __ASM_MIPS_MACH_ATHEROS_WAR_H */
886 +++ b/arch/mips/include/asm/mach-ar231x/ar2315_regs.h
889 + * Register definitions for AR2315+
891 + * This file is subject to the terms and conditions of the GNU General Public
892 + * License. See the file "COPYING" in the main directory of this archive
893 + * for more details.
895 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
896 + * Copyright (C) 2006 FON Technology, SL.
897 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
898 + * Copyright (C) 2006-2008 Felix Fietkau <nbd@openwrt.org>
901 +#ifndef __AR2315_REG_H
902 +#define __AR2315_REG_H
907 +#define AR2315_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
908 +#define AR2315_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
909 +#define AR2315_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
910 +#define AR2315_IRQ_LCBUS_PCI MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
911 +#define AR2315_IRQ_WLAN0_POLL MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
916 +#define AR2315_SPI_READ 0x08000000 /* SPI FLASH */
917 +#define AR2315_WLAN0 0xB0000000 /* Wireless MMR */
918 +#define AR2315_PCI 0xB0100000 /* PCI MMR */
919 +#define AR2315_SDRAMCTL 0xB0300000 /* SDRAM MMR */
920 +#define AR2315_LOCAL 0xB0400000 /* LOCAL BUS MMR */
921 +#define AR2315_ENET0 0xB0500000 /* ETHERNET MMR */
922 +#define AR2315_DSLBASE 0xB1000000 /* RESET CONTROL MMR */
923 +#define AR2315_UART0 0xB1100003 /* UART MMR */
924 +#define AR2315_SPI 0xB1300000 /* SPI FLASH MMR */
925 +#define AR2315_PCIEXT 0x80000000 /* pci external */
930 +#define AR2315_COLD_RESET (AR2315_DSLBASE + 0x0000)
932 +#define AR2315_RESET_COLD_AHB 0x00000001
933 +#define AR2315_RESET_COLD_APB 0x00000002
934 +#define AR2315_RESET_COLD_CPU 0x00000004
935 +#define AR2315_RESET_COLD_CPUWARM 0x00000008
936 +#define AR2315_RESET_SYSTEM (RESET_COLD_CPU | RESET_COLD_APB | RESET_COLD_AHB) /* full system */
937 +#define AR2317_RESET_SYSTEM 0x00000010
940 +#define AR2315_RESET (AR2315_DSLBASE + 0x0004)
942 +#define AR2315_RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
943 +#define AR2315_RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BaseBand */
944 +#define AR2315_RESET_MPEGTS_RSVD 0x00000004 /* warm reset MPEG-TS */
945 +#define AR2315_RESET_PCIDMA 0x00000008 /* warm reset PCI ahb/dma */
946 +#define AR2315_RESET_MEMCTL 0x00000010 /* warm reset memory controller */
947 +#define AR2315_RESET_LOCAL 0x00000020 /* warm reset local bus */
948 +#define AR2315_RESET_I2C_RSVD 0x00000040 /* warm reset I2C bus */
949 +#define AR2315_RESET_SPI 0x00000080 /* warm reset SPI interface */
950 +#define AR2315_RESET_UART0 0x00000100 /* warm reset UART0 */
951 +#define AR2315_RESET_IR_RSVD 0x00000200 /* warm reset IR interface */
952 +#define AR2315_RESET_EPHY0 0x00000400 /* cold reset ENET0 phy */
953 +#define AR2315_RESET_ENET0 0x00000800 /* cold reset ENET0 mac */
956 + * AHB master arbitration control
958 +#define AR2315_AHB_ARB_CTL (AR2315_DSLBASE + 0x0008)
960 +#define AR2315_ARB_CPU 0x00000001 /* CPU, default */
961 +#define AR2315_ARB_WLAN 0x00000002 /* WLAN */
962 +#define AR2315_ARB_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
963 +#define AR2315_ARB_LOCAL 0x00000008 /* LOCAL */
964 +#define AR2315_ARB_PCI 0x00000010 /* PCI */
965 +#define AR2315_ARB_ETHERNET 0x00000020 /* Ethernet */
966 +#define AR2315_ARB_RETRY 0x00000100 /* retry policy, debug only */
971 +#define AR2315_ENDIAN_CTL (AR2315_DSLBASE + 0x000c)
973 +#define AR2315_CONFIG_AHB 0x00000001 /* EC - AHB bridge endianess */
974 +#define AR2315_CONFIG_WLAN 0x00000002 /* WLAN byteswap */
975 +#define AR2315_CONFIG_MPEGTS_RSVD 0x00000004 /* MPEG-TS byteswap */
976 +#define AR2315_CONFIG_PCI 0x00000008 /* PCI byteswap */
977 +#define AR2315_CONFIG_MEMCTL 0x00000010 /* Memory controller endianess */
978 +#define AR2315_CONFIG_LOCAL 0x00000020 /* Local bus byteswap */
979 +#define AR2315_CONFIG_ETHERNET 0x00000040 /* Ethernet byteswap */
981 +#define AR2315_CONFIG_MERGE 0x00000200 /* CPU write buffer merge */
982 +#define AR2315_CONFIG_CPU 0x00000400 /* CPU big endian */
983 +#define AR2315_CONFIG_PCIAHB 0x00000800
984 +#define AR2315_CONFIG_PCIAHB_BRIDGE 0x00001000
985 +#define AR2315_CONFIG_SPI 0x00008000 /* SPI byteswap */
986 +#define AR2315_CONFIG_CPU_DRAM 0x00010000
987 +#define AR2315_CONFIG_CPU_PCI 0x00020000
988 +#define AR2315_CONFIG_CPU_MMR 0x00040000
989 +#define AR2315_CONFIG_BIG 0x00000400
995 +#define AR2315_NMI_CTL (AR2315_DSLBASE + 0x0010)
997 +#define AR2315_NMI_EN 1
1000 + * Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
1002 +#define AR2315_SREV (AR2315_DSLBASE + 0x0014)
1004 +#define AR2315_REV_MAJ 0x00f0
1005 +#define AR2315_REV_MAJ_S 4
1006 +#define AR2315_REV_MIN 0x000f
1007 +#define AR2315_REV_MIN_S 0
1008 +#define AR2315_REV_CHIP (AR2315_REV_MAJ|AR2315_REV_MIN)
1011 + * Interface Enable
1013 +#define AR2315_IF_CTL (AR2315_DSLBASE + 0x0018)
1015 +#define AR2315_IF_MASK 0x00000007
1016 +#define AR2315_IF_DISABLED 0
1017 +#define AR2315_IF_PCI 1
1018 +#define AR2315_IF_TS_LOCAL 2
1019 +#define AR2315_IF_ALL 3 /* only for emulation with separate pins */
1020 +#define AR2315_IF_LOCAL_HOST 0x00000008
1021 +#define AR2315_IF_PCI_HOST 0x00000010
1022 +#define AR2315_IF_PCI_INTR 0x00000020
1023 +#define AR2315_IF_PCI_CLK_MASK 0x00030000
1024 +#define AR2315_IF_PCI_CLK_INPUT 0
1025 +#define AR2315_IF_PCI_CLK_OUTPUT_LOW 1
1026 +#define AR2315_IF_PCI_CLK_OUTPUT_CLK 2
1027 +#define AR2315_IF_PCI_CLK_OUTPUT_HIGH 3
1028 +#define AR2315_IF_PCI_CLK_SHIFT 16
1031 + * APB Interrupt control
1034 +#define AR2315_ISR (AR2315_DSLBASE + 0x0020)
1035 +#define AR2315_IMR (AR2315_DSLBASE + 0x0024)
1036 +#define AR2315_GISR (AR2315_DSLBASE + 0x0028)
1038 +#define AR2315_ISR_UART0 0x0001 /* high speed UART */
1039 +#define AR2315_ISR_I2C_RSVD 0x0002 /* I2C bus */
1040 +#define AR2315_ISR_SPI 0x0004 /* SPI bus */
1041 +#define AR2315_ISR_AHB 0x0008 /* AHB error */
1042 +#define AR2315_ISR_APB 0x0010 /* APB error */
1043 +#define AR2315_ISR_TIMER 0x0020 /* timer */
1044 +#define AR2315_ISR_GPIO 0x0040 /* GPIO */
1045 +#define AR2315_ISR_WD 0x0080 /* watchdog */
1046 +#define AR2315_ISR_IR_RSVD 0x0100 /* IR */
1048 +#define AR2315_GISR_MISC 0x0001
1049 +#define AR2315_GISR_WLAN0 0x0002
1050 +#define AR2315_GISR_MPEGTS_RSVD 0x0004
1051 +#define AR2315_GISR_LOCALPCI 0x0008
1052 +#define AR2315_GISR_WMACPOLL 0x0010
1053 +#define AR2315_GISR_TIMER 0x0020
1054 +#define AR2315_GISR_ETHERNET 0x0040
1057 + * Interrupt routing from IO to the processor IP bits
1058 + * Define our inter mask and level
1060 +#define AR2315_INTR_MISCIO SR_IBIT3
1061 +#define AR2315_INTR_WLAN0 SR_IBIT4
1062 +#define AR2315_INTR_ENET0 SR_IBIT5
1063 +#define AR2315_INTR_LOCALPCI SR_IBIT6
1064 +#define AR2315_INTR_WMACPOLL SR_IBIT7
1065 +#define AR2315_INTR_COMPARE SR_IBIT8
1070 +#define AR2315_TIMER (AR2315_DSLBASE + 0x0030)
1071 +#define AR2315_RELOAD (AR2315_DSLBASE + 0x0034)
1072 +#define AR2315_WD (AR2315_DSLBASE + 0x0038)
1073 +#define AR2315_WDC (AR2315_DSLBASE + 0x003c)
1075 +#define AR2315_WDC_IGNORE_EXPIRATION 0x00000000
1076 +#define AR2315_WDC_NMI 0x00000001 /* NMI on watchdog */
1077 +#define AR2315_WDC_RESET 0x00000002 /* reset on watchdog */
1080 + * CPU Performance Counters
1082 +#define AR2315_PERFCNT0 (AR2315_DSLBASE + 0x0048)
1083 +#define AR2315_PERFCNT1 (AR2315_DSLBASE + 0x004c)
1085 +#define AR2315_PERF0_DATAHIT 0x0001 /* Count Data Cache Hits */
1086 +#define AR2315_PERF0_DATAMISS 0x0002 /* Count Data Cache Misses */
1087 +#define AR2315_PERF0_INSTHIT 0x0004 /* Count Instruction Cache Hits */
1088 +#define AR2315_PERF0_INSTMISS 0x0008 /* Count Instruction Cache Misses */
1089 +#define AR2315_PERF0_ACTIVE 0x0010 /* Count Active Processor Cycles */
1090 +#define AR2315_PERF0_WBHIT 0x0020 /* Count CPU Write Buffer Hits */
1091 +#define AR2315_PERF0_WBMISS 0x0040 /* Count CPU Write Buffer Misses */
1093 +#define AR2315_PERF1_EB_ARDY 0x0001 /* Count EB_ARdy signal */
1094 +#define AR2315_PERF1_EB_AVALID 0x0002 /* Count EB_AValid signal */
1095 +#define AR2315_PERF1_EB_WDRDY 0x0004 /* Count EB_WDRdy signal */
1096 +#define AR2315_PERF1_EB_RDVAL 0x0008 /* Count EB_RdVal signal */
1097 +#define AR2315_PERF1_VRADDR 0x0010 /* Count valid read address cycles */
1098 +#define AR2315_PERF1_VWADDR 0x0020 /* Count valid write address cycles */
1099 +#define AR2315_PERF1_VWDATA 0x0040 /* Count valid write data cycles */
1102 + * AHB Error Reporting.
1104 +#define AR2315_AHB_ERR0 (AR2315_DSLBASE + 0x0050) /* error */
1105 +#define AR2315_AHB_ERR1 (AR2315_DSLBASE + 0x0054) /* haddr */
1106 +#define AR2315_AHB_ERR2 (AR2315_DSLBASE + 0x0058) /* hwdata */
1107 +#define AR2315_AHB_ERR3 (AR2315_DSLBASE + 0x005c) /* hrdata */
1108 +#define AR2315_AHB_ERR4 (AR2315_DSLBASE + 0x0060) /* status */
1110 +#define AHB_ERROR_DET 1 /* AHB Error has been detected, */
1111 + /* write 1 to clear all bits in ERR0 */
1112 +#define AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
1113 +#define AHB_ERROR_WDT 4 /* AHB Error due to wdt instead of hresp */
1115 +#define AR2315_PROCERR_HMAST 0x0000000f
1116 +#define AR2315_PROCERR_HMAST_DFLT 0
1117 +#define AR2315_PROCERR_HMAST_WMAC 1
1118 +#define AR2315_PROCERR_HMAST_ENET 2
1119 +#define AR2315_PROCERR_HMAST_PCIENDPT 3
1120 +#define AR2315_PROCERR_HMAST_LOCAL 4
1121 +#define AR2315_PROCERR_HMAST_CPU 5
1122 +#define AR2315_PROCERR_HMAST_PCITGT 6
1124 +#define AR2315_PROCERR_HMAST_S 0
1125 +#define AR2315_PROCERR_HWRITE 0x00000010
1126 +#define AR2315_PROCERR_HSIZE 0x00000060
1127 +#define AR2315_PROCERR_HSIZE_S 5
1128 +#define AR2315_PROCERR_HTRANS 0x00000180
1129 +#define AR2315_PROCERR_HTRANS_S 7
1130 +#define AR2315_PROCERR_HBURST 0x00000e00
1131 +#define AR2315_PROCERR_HBURST_S 9
1136 +#define AR2315_PLLC_CTL (AR2315_DSLBASE + 0x0064)
1137 +#define AR2315_PLLV_CTL (AR2315_DSLBASE + 0x0068)
1138 +#define AR2315_CPUCLK (AR2315_DSLBASE + 0x006c)
1139 +#define AR2315_AMBACLK (AR2315_DSLBASE + 0x0070)
1140 +#define AR2315_SYNCCLK (AR2315_DSLBASE + 0x0074)
1141 +#define AR2315_DSL_SLEEP_CTL (AR2315_DSLBASE + 0x0080)
1142 +#define AR2315_DSL_SLEEP_DUR (AR2315_DSLBASE + 0x0084)
1144 +/* PLLc Control fields */
1145 +#define PLLC_REF_DIV_M 0x00000003
1146 +#define PLLC_REF_DIV_S 0
1147 +#define PLLC_FDBACK_DIV_M 0x0000007C
1148 +#define PLLC_FDBACK_DIV_S 2
1149 +#define PLLC_ADD_FDBACK_DIV_M 0x00000080
1150 +#define PLLC_ADD_FDBACK_DIV_S 7
1151 +#define PLLC_CLKC_DIV_M 0x0001c000
1152 +#define PLLC_CLKC_DIV_S 14
1153 +#define PLLC_CLKM_DIV_M 0x00700000
1154 +#define PLLC_CLKM_DIV_S 20
1156 +/* CPU CLK Control fields */
1157 +#define CPUCLK_CLK_SEL_M 0x00000003
1158 +#define CPUCLK_CLK_SEL_S 0
1159 +#define CPUCLK_CLK_DIV_M 0x0000000c
1160 +#define CPUCLK_CLK_DIV_S 2
1162 +/* AMBA CLK Control fields */
1163 +#define AMBACLK_CLK_SEL_M 0x00000003
1164 +#define AMBACLK_CLK_SEL_S 0
1165 +#define AMBACLK_CLK_DIV_M 0x0000000c
1166 +#define AMBACLK_CLK_DIV_S 2
1171 +#define AR2315_GPIO_DI (AR2315_DSLBASE + 0x0088)
1172 +#define AR2315_GPIO_DO (AR2315_DSLBASE + 0x0090)
1173 +#define AR2315_GPIO_CR (AR2315_DSLBASE + 0x0098)
1174 +#define AR2315_GPIO_INT (AR2315_DSLBASE + 0x00a0)
1176 +#define AR2315_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
1177 +#define AR2315_GPIO_CR_O(x) (1 << (x)) /* output */
1178 +#define AR2315_GPIO_CR_I(x) (0) /* input */
1180 +#define AR2315_GPIO_INT_S(x) (x) /* interrupt enable */
1181 +#define AR2315_GPIO_INT_M (0x3F) /* mask for int */
1182 +#define AR2315_GPIO_INT_LVL(x) ((x) << 6) /* interrupt level */
1183 +#define AR2315_GPIO_INT_LVL_M ((0x3) << 6) /* mask for int level */
1185 +#define AR2315_GPIO_INT_MAX_Y 1 /* Maximum value of Y for AR5313_GPIO_INT_* macros */
1186 +#define AR2315_GPIO_INT_LVL_OFF 0 /* Triggerring off */
1187 +#define AR2315_GPIO_INT_LVL_LOW 1 /* Low Level Triggered */
1188 +#define AR2315_GPIO_INT_LVL_HIGH 2 /* High Level Triggered */
1189 +#define AR2315_GPIO_INT_LVL_EDGE 3 /* Edge Triggered */
1191 +#define AR2315_RESET_GPIO 5
1192 +#define AR2315_NUM_GPIO 22
1195 + * PCI Clock Control
1197 +#define AR2315_PCICLK (AR2315_DSLBASE + 0x00a4)
1199 +#define AR2315_PCICLK_INPUT_M 0x3
1200 +#define AR2315_PCICLK_INPUT_S 0
1202 +#define AR2315_PCICLK_PLLC_CLKM 0
1203 +#define AR2315_PCICLK_PLLC_CLKM1 1
1204 +#define AR2315_PCICLK_PLLC_CLKC 2
1205 +#define AR2315_PCICLK_REF_CLK 3
1207 +#define AR2315_PCICLK_DIV_M 0xc
1208 +#define AR2315_PCICLK_DIV_S 2
1210 +#define AR2315_PCICLK_IN_FREQ 0
1211 +#define AR2315_PCICLK_IN_FREQ_DIV_6 1
1212 +#define AR2315_PCICLK_IN_FREQ_DIV_8 2
1213 +#define AR2315_PCICLK_IN_FREQ_DIV_10 3
1216 + * Observation Control Register
1218 +#define AR2315_OCR (AR2315_DSLBASE + 0x00b0)
1219 +#define OCR_GPIO0_IRIN 0x0040
1220 +#define OCR_GPIO1_IROUT 0x0080
1221 +#define OCR_GPIO3_RXCLR 0x0200
1224 + * General Clock Control
1227 +#define AR2315_MISCCLK (AR2315_DSLBASE + 0x00b4)
1228 +#define MISCCLK_PLLBYPASS_EN 0x00000001
1229 +#define MISCCLK_PROCREFCLK 0x00000002
1232 + * SDRAM Controller
1233 + * - No read or write buffers are included.
1235 +#define AR2315_MEM_CFG (AR2315_SDRAMCTL + 0x00)
1236 +#define AR2315_MEM_CTRL (AR2315_SDRAMCTL + 0x0c)
1237 +#define AR2315_MEM_REF (AR2315_SDRAMCTL + 0x10)
1239 +#define SDRAM_DATA_WIDTH_M 0x00006000
1240 +#define SDRAM_DATA_WIDTH_S 13
1242 +#define SDRAM_COL_WIDTH_M 0x00001E00
1243 +#define SDRAM_COL_WIDTH_S 9
1245 +#define SDRAM_ROW_WIDTH_M 0x000001E0
1246 +#define SDRAM_ROW_WIDTH_S 5
1248 +#define SDRAM_BANKADDR_BITS_M 0x00000018
1249 +#define SDRAM_BANKADDR_BITS_S 3
1252 + * SPI Flash Interface Registers
1255 +#define AR2315_SPI_CTL (AR2315_SPI + 0x00)
1256 +#define AR2315_SPI_OPCODE (AR2315_SPI + 0x04)
1257 +#define AR2315_SPI_DATA (AR2315_SPI + 0x08)
1259 +#define SPI_CTL_START 0x00000100
1260 +#define SPI_CTL_BUSY 0x00010000
1261 +#define SPI_CTL_TXCNT_MASK 0x0000000f
1262 +#define SPI_CTL_RXCNT_MASK 0x000000f0
1263 +#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
1264 +#define SPI_CTL_SIZE_MASK 0x00060000
1266 +#define SPI_CTL_CLK_SEL_MASK 0x03000000
1267 +#define SPI_OPCODE_MASK 0x000000ff
1270 + * PCI Bus Interface Registers
1272 +#define AR2315_PCI_1MS_REG (AR2315_PCI + 0x0008)
1273 +#define AR2315_PCI_1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
1275 +#define AR2315_PCI_MISC_CONFIG (AR2315_PCI + 0x000c)
1276 +#define AR2315_PCIMISC_TXD_EN 0x00000001 /* Enable TXD for fragments */
1277 +#define AR2315_PCIMISC_CFG_SEL 0x00000002 /* mem or config cycles */
1278 +#define AR2315_PCIMISC_GIG_MASK 0x0000000C /* bits 31-30 for pci req */
1279 +#define AR2315_PCIMISC_RST_MODE 0x00000030
1280 +#define AR2315_PCIRST_INPUT 0x00000000 /* 4:5=0 rst is input */
1281 +#define AR2315_PCIRST_LOW 0x00000010 /* 4:5=1 rst to GND */
1282 +#define AR2315_PCIRST_HIGH 0x00000020 /* 4:5=2 rst to VDD */
1283 +#define AR2315_PCIGRANT_EN 0x00000000 /* 6:7=0 early grant en */
1284 +#define AR2315_PCIGRANT_FRAME 0x00000040 /* 6:7=1 grant waits 4 frame */
1285 +#define AR2315_PCIGRANT_IDLE 0x00000080 /* 6:7=2 grant waits 4 idle */
1286 +#define AR2315_PCIGRANT_GAP 0x00000000 /* 6:7=2 grant waits 4 idle */
1287 +#define AR2315_PCICACHE_DIS 0x00001000 /* PCI external access cache disable */
1289 +#define AR2315_PCI_OUT_TSTAMP (AR2315_PCI + 0x0010)
1291 +#define AR2315_PCI_UNCACHE_CFG (AR2315_PCI + 0x0014)
1293 +#define AR2315_PCI_IN_EN (AR2315_PCI + 0x0100)
1294 +#define AR2315_PCI_IN_EN0 0x01 /* Enable chain 0 */
1295 +#define AR2315_PCI_IN_EN1 0x02 /* Enable chain 1 */
1296 +#define AR2315_PCI_IN_EN2 0x04 /* Enable chain 2 */
1297 +#define AR2315_PCI_IN_EN3 0x08 /* Enable chain 3 */
1299 +#define AR2315_PCI_IN_DIS (AR2315_PCI + 0x0104)
1300 +#define AR2315_PCI_IN_DIS0 0x01 /* Disable chain 0 */
1301 +#define AR2315_PCI_IN_DIS1 0x02 /* Disable chain 1 */
1302 +#define AR2315_PCI_IN_DIS2 0x04 /* Disable chain 2 */
1303 +#define AR2315_PCI_IN_DIS3 0x08 /* Disable chain 3 */
1305 +#define AR2315_PCI_IN_PTR (AR2315_PCI + 0x0200)
1307 +#define AR2315_PCI_OUT_EN (AR2315_PCI + 0x0400)
1308 +#define AR2315_PCI_OUT_EN0 0x01 /* Enable chain 0 */
1310 +#define AR2315_PCI_OUT_DIS (AR2315_PCI + 0x0404)
1311 +#define AR2315_PCI_OUT_DIS0 0x01 /* Disable chain 0 */
1313 +#define AR2315_PCI_OUT_PTR (AR2315_PCI + 0x0408)
1315 +#define AR2315_PCI_INT_STATUS (AR2315_PCI + 0x0500) /* write one to clr */
1316 +#define AR2315_PCI_TXINT 0x00000001 /* Desc In Completed */
1317 +#define AR2315_PCI_TXOK 0x00000002 /* Desc In OK */
1318 +#define AR2315_PCI_TXERR 0x00000004 /* Desc In ERR */
1319 +#define AR2315_PCI_TXEOL 0x00000008 /* Desc In End-of-List */
1320 +#define AR2315_PCI_RXINT 0x00000010 /* Desc Out Completed */
1321 +#define AR2315_PCI_RXOK 0x00000020 /* Desc Out OK */
1322 +#define AR2315_PCI_RXERR 0x00000040 /* Desc Out ERR */
1323 +#define AR2315_PCI_RXEOL 0x00000080 /* Desc Out EOL */
1324 +#define AR2315_PCI_TXOOD 0x00000200 /* Desc In Out-of-Desc */
1325 +#define AR2315_PCI_MASK 0x0000FFFF /* Desc Mask */
1326 +#define AR2315_PCI_EXT_INT 0x02000000
1327 +#define AR2315_PCI_ABORT_INT 0x04000000
1329 +#define AR2315_PCI_INT_MASK (AR2315_PCI + 0x0504) /* same as INT_STATUS */
1331 +#define AR2315_PCI_INTEN_REG (AR2315_PCI + 0x0508)
1332 +#define AR2315_PCI_INT_DISABLE 0x00 /* disable pci interrupts */
1333 +#define AR2315_PCI_INT_ENABLE 0x01 /* enable pci interrupts */
1335 +#define AR2315_PCI_HOST_IN_EN (AR2315_PCI + 0x0800)
1336 +#define AR2315_PCI_HOST_IN_DIS (AR2315_PCI + 0x0804)
1337 +#define AR2315_PCI_HOST_IN_PTR (AR2315_PCI + 0x0810)
1338 +#define AR2315_PCI_HOST_OUT_EN (AR2315_PCI + 0x0900)
1339 +#define AR2315_PCI_HOST_OUT_DIS (AR2315_PCI + 0x0904)
1340 +#define AR2315_PCI_HOST_OUT_PTR (AR2315_PCI + 0x0908)
1344 + * Local Bus Interface Registers
1346 +#define AR2315_LB_CONFIG (AR2315_LOCAL + 0x0000)
1347 +#define AR2315_LBCONF_OE 0x00000001 /* =1 OE is low-true */
1348 +#define AR2315_LBCONF_CS0 0x00000002 /* =1 first CS is low-true */
1349 +#define AR2315_LBCONF_CS1 0x00000004 /* =1 2nd CS is low-true */
1350 +#define AR2315_LBCONF_RDY 0x00000008 /* =1 RDY is low-true */
1351 +#define AR2315_LBCONF_WE 0x00000010 /* =1 Write En is low-true */
1352 +#define AR2315_LBCONF_WAIT 0x00000020 /* =1 WAIT is low-true */
1353 +#define AR2315_LBCONF_ADS 0x00000040 /* =1 Adr Strobe is low-true */
1354 +#define AR2315_LBCONF_MOT 0x00000080 /* =0 Intel, =1 Motorola */
1355 +#define AR2315_LBCONF_8CS 0x00000100 /* =1 8 bits CS, 0= 16bits */
1356 +#define AR2315_LBCONF_8DS 0x00000200 /* =1 8 bits Data S, 0=16bits */
1357 +#define AR2315_LBCONF_ADS_EN 0x00000400 /* =1 Enable ADS */
1358 +#define AR2315_LBCONF_ADR_OE 0x00000800 /* =1 Adr cap on OE, WE or DS */
1359 +#define AR2315_LBCONF_ADDT_MUX 0x00001000 /* =1 Adr and Data share bus */
1360 +#define AR2315_LBCONF_DATA_OE 0x00002000 /* =1 Data cap on OE, WE, DS */
1361 +#define AR2315_LBCONF_16DATA 0x00004000 /* =1 Data is 16 bits wide */
1362 +#define AR2315_LBCONF_SWAPDT 0x00008000 /* =1 Byte swap data */
1363 +#define AR2315_LBCONF_SYNC 0x00010000 /* =1 Bus synchronous to clk */
1364 +#define AR2315_LBCONF_INT 0x00020000 /* =1 Intr is low true */
1365 +#define AR2315_LBCONF_INT_CTR0 0x00000000 /* GND high-Z, Vdd is high-Z */
1366 +#define AR2315_LBCONF_INT_CTR1 0x00040000 /* GND drive, Vdd is high-Z */
1367 +#define AR2315_LBCONF_INT_CTR2 0x00080000 /* GND high-Z, Vdd drive */
1368 +#define AR2315_LBCONF_INT_CTR3 0x000C0000 /* GND drive, Vdd drive */
1369 +#define AR2315_LBCONF_RDY_WAIT 0x00100000 /* =1 RDY is negative of WAIT */
1370 +#define AR2315_LBCONF_INT_PULSE 0x00200000 /* =1 Interrupt is a pulse */
1371 +#define AR2315_LBCONF_ENABLE 0x00400000 /* =1 Falcon respond to LB */
1373 +#define AR2315_LB_CLKSEL (AR2315_LOCAL + 0x0004)
1374 +#define AR2315_LBCLK_EXT 0x0001 /* use external clk for lb */
1376 +#define AR2315_LB_1MS (AR2315_LOCAL + 0x0008)
1377 +#define AR2315_LB1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
1379 +#define AR2315_LB_MISCCFG (AR2315_LOCAL + 0x000C)
1380 +#define AR2315_LBM_TXD_EN 0x00000001 /* Enable TXD for fragments */
1381 +#define AR2315_LBM_RX_INTEN 0x00000002 /* Enable LB ints on RX ready */
1382 +#define AR2315_LBM_MBOXWR_INTEN 0x00000004 /* Enable LB ints on mbox wr */
1383 +#define AR2315_LBM_MBOXRD_INTEN 0x00000008 /* Enable LB ints on mbox rd */
1384 +#define AR2315_LMB_DESCSWAP_EN 0x00000010 /* Byte swap desc enable */
1385 +#define AR2315_LBM_TIMEOUT_MASK 0x00FFFF80
1386 +#define AR2315_LBM_TIMEOUT_SHFT 7
1387 +#define AR2315_LBM_PORTMUX 0x07000000
1390 +#define AR2315_LB_RXTSOFF (AR2315_LOCAL + 0x0010)
1392 +#define AR2315_LB_TX_CHAIN_EN (AR2315_LOCAL + 0x0100)
1393 +#define AR2315_LB_TXEN_0 0x01
1394 +#define AR2315_LB_TXEN_1 0x02
1395 +#define AR2315_LB_TXEN_2 0x04
1396 +#define AR2315_LB_TXEN_3 0x08
1398 +#define AR2315_LB_TX_CHAIN_DIS (AR2315_LOCAL + 0x0104)
1399 +#define AR2315_LB_TX_DESC_PTR (AR2315_LOCAL + 0x0200)
1401 +#define AR2315_LB_RX_CHAIN_EN (AR2315_LOCAL + 0x0400)
1402 +#define AR2315_LB_RXEN 0x01
1404 +#define AR2315_LB_RX_CHAIN_DIS (AR2315_LOCAL + 0x0404)
1405 +#define AR2315_LB_RX_DESC_PTR (AR2315_LOCAL + 0x0408)
1407 +#define AR2315_LB_INT_STATUS (AR2315_LOCAL + 0x0500)
1408 +#define AR2315_INT_TX_DESC 0x0001
1409 +#define AR2315_INT_TX_OK 0x0002
1410 +#define AR2315_INT_TX_ERR 0x0004
1411 +#define AR2315_INT_TX_EOF 0x0008
1412 +#define AR2315_INT_RX_DESC 0x0010
1413 +#define AR2315_INT_RX_OK 0x0020
1414 +#define AR2315_INT_RX_ERR 0x0040
1415 +#define AR2315_INT_RX_EOF 0x0080
1416 +#define AR2315_INT_TX_TRUNC 0x0100
1417 +#define AR2315_INT_TX_STARVE 0x0200
1418 +#define AR2315_INT_LB_TIMEOUT 0x0400
1419 +#define AR2315_INT_LB_ERR 0x0800
1420 +#define AR2315_INT_MBOX_WR 0x1000
1421 +#define AR2315_INT_MBOX_RD 0x2000
1423 +/* Bit definitions for INT MASK are the same as INT_STATUS */
1424 +#define AR2315_LB_INT_MASK (AR2315_LOCAL + 0x0504)
1426 +#define AR2315_LB_INT_EN (AR2315_LOCAL + 0x0508)
1427 +#define AR2315_LB_MBOX (AR2315_LOCAL + 0x0600)
1430 + * IR Interface Registers
1432 +#define AR2315_IR_PKTDATA (AR2315_IR + 0x0000)
1434 +#define AR2315_IR_PKTLEN (AR2315_IR + 0x07fc) /* 0 - 63 */
1436 +#define AR2315_IR_CONTROL (AR2315_IR + 0x0800)
1437 +#define AR2315_IRCTL_TX 0x00000000 /* use as tranmitter */
1438 +#define AR2315_IRCTL_RX 0x00000001 /* use as receiver */
1439 +#define AR2315_IRCTL_SAMPLECLK_MASK 0x00003ffe /* Sample clk divisor mask */
1440 +#define AR2315_IRCTL_SAMPLECLK_SHFT 1
1441 +#define AR2315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk divisor mask */
1442 +#define AR2315_IRCTL_OUTPUTCLK_SHFT 14
1444 +#define AR2315_IR_STATUS (AR2315_IR + 0x0804)
1445 +#define AR2315_IRSTS_RX 0x00000001 /* receive in progress */
1446 +#define AR2315_IRSTS_TX 0x00000002 /* transmit in progress */
1448 +#define AR2315_IR_CONFIG (AR2315_IR + 0x0808)
1449 +#define AR2315_IRCFG_INVIN 0x00000001 /* invert input polarity */
1450 +#define AR2315_IRCFG_INVOUT 0x00000002 /* invert output polarity */
1451 +#define AR2315_IRCFG_SEQ_START_WIN_SEL 0x00000004 /* 1 => 28, 0 => 7 */
1452 +#define AR2315_IRCFG_SEQ_START_THRESH 0x000000f0 /* */
1453 +#define AR2315_IRCFG_SEQ_END_UNIT_SEL 0x00000100 /* */
1454 +#define AR2315_IRCFG_SEQ_END_UNIT_THRESH 0x00007e00 /* */
1455 +#define AR2315_IRCFG_SEQ_END_WIN_SEL 0x00008000 /* */
1456 +#define AR2315_IRCFG_SEQ_END_WIN_THRESH 0x001f0000 /* */
1457 +#define AR2315_IRCFG_NUM_BACKOFF_WORDS 0x01e00000 /* */
1459 +#define HOST_PCI_DEV_ID 3
1460 +#define HOST_PCI_MBAR0 0x10000000
1461 +#define HOST_PCI_MBAR1 0x20000000
1462 +#define HOST_PCI_MBAR2 0x30000000
1464 +#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
1465 +#define PCI_DEVICE_MEM_SPACE 0x800000
1467 +#endif /* __AR2315_REG_H */
1469 +++ b/arch/mips/include/asm/mach-ar231x/ar5312_regs.h
1472 + * This file is subject to the terms and conditions of the GNU General Public
1473 + * License. See the file "COPYING" in the main directory of this archive
1474 + * for more details.
1476 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
1477 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
1478 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
1484 +#include <asm/addrspace.h>
1490 +#define AR5312_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
1491 +#define AR5312_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
1492 +#define AR5312_IRQ_ENET1_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
1493 +#define AR5312_IRQ_WLAN1_INTRS MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
1494 +#define AR5312_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
1498 +#define AR531X_WLAN0 0x18000000
1499 +#define AR531X_WLAN1 0x18500000
1500 +#define AR531X_ENET0 0x18100000
1501 +#define AR531X_ENET1 0x18200000
1502 +#define AR531X_SDRAMCTL 0x18300000
1503 +#define AR531X_FLASHCTL 0x18400000
1504 +#define AR531X_APBBASE 0x1c000000
1505 +#define AR531X_FLASH 0x1e000000
1506 +#define AR531X_UART0 0xbc000003 /* UART MMR */
1509 + * AR531X_NUM_ENET_MAC defines the number of ethernet MACs that
1510 + * should be considered available. The AR5312 supports 2 enet MACS,
1511 + * even though many reference boards only actually use 1 of them
1512 + * (i.e. Only MAC 0 is actually connected to an enet PHY or PHY switch.
1513 + * The AR2312 supports 1 enet MAC.
1515 +#define AR531X_NUM_ENET_MAC 2
1518 + * Need these defines to determine true number of ethernet MACs
1520 +#define AR5212_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
1521 +#define AR5212_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
1522 +#define AR5212_AR2313_REV8 0x0058 /* AR2313 WMAC (AP43-030) */
1523 +#define AR531X_RADIO_MASK_OFF 0xc8
1524 +#define AR531X_RADIO0_MASK 0x0003
1525 +#define AR531X_RADIO1_MASK 0x000c
1526 +#define AR531X_RADIO1_S 2
1529 + * AR531X_NUM_WMAC defines the number of Wireless MACs that\
1530 + * should be considered available.
1532 +#define AR531X_NUM_WMAC 2
1534 +/* Reset/Timer Block Address Map */
1535 +#define AR531X_RESETTMR (AR531X_APBBASE + 0x3000)
1536 +#define AR531X_TIMER (AR531X_RESETTMR + 0x0000) /* countdown timer */
1537 +#define AR531X_WD_CTRL (AR531X_RESETTMR + 0x0008) /* watchdog cntrl */
1538 +#define AR531X_WD_TIMER (AR531X_RESETTMR + 0x000c) /* watchdog timer */
1539 +#define AR531X_ISR (AR531X_RESETTMR + 0x0010) /* Intr Status Reg */
1540 +#define AR531X_IMR (AR531X_RESETTMR + 0x0014) /* Intr Mask Reg */
1541 +#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
1542 +#define AR5312_CLOCKCTL1 (AR531X_RESETTMR + 0x0064)
1543 +#define AR5312_SCRATCH (AR531X_RESETTMR + 0x006c)
1544 +#define AR531X_PROCADDR (AR531X_RESETTMR + 0x0070)
1545 +#define AR531X_PROC1 (AR531X_RESETTMR + 0x0074)
1546 +#define AR531X_DMAADDR (AR531X_RESETTMR + 0x0078)
1547 +#define AR531X_DMA1 (AR531X_RESETTMR + 0x007c)
1548 +#define AR531X_ENABLE (AR531X_RESETTMR + 0x0080) /* interface enb */
1549 +#define AR531X_REV (AR531X_RESETTMR + 0x0090) /* revision */
1551 +/* AR531X_WD_CTRL register bit field definitions */
1552 +#define AR531X_WD_CTRL_IGNORE_EXPIRATION 0x0000
1553 +#define AR531X_WD_CTRL_NMI 0x0001
1554 +#define AR531X_WD_CTRL_RESET 0x0002
1556 +/* AR531X_ISR register bit field definitions */
1557 +#define AR531X_ISR_NONE 0x0000
1558 +#define AR531X_ISR_TIMER 0x0001
1559 +#define AR531X_ISR_AHBPROC 0x0002
1560 +#define AR531X_ISR_AHBDMA 0x0004
1561 +#define AR531X_ISR_GPIO 0x0008
1562 +#define AR531X_ISR_UART0 0x0010
1563 +#define AR531X_ISR_UART0DMA 0x0020
1564 +#define AR531X_ISR_WD 0x0040
1565 +#define AR531X_ISR_LOCAL 0x0080
1567 +/* AR531X_RESET register bit field definitions */
1568 +#define AR531X_RESET_SYSTEM 0x00000001 /* cold reset full system */
1569 +#define AR531X_RESET_PROC 0x00000002 /* cold reset MIPS core */
1570 +#define AR531X_RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
1571 +#define AR531X_RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
1572 +#define AR531X_RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
1573 +#define AR531X_RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
1574 +#define AR531X_RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
1575 +#define AR531X_RESET_UART0 0x00000100 /* cold reset UART0 (high speed) */
1576 +#define AR531X_RESET_WLAN1 0x00000200 /* cold reset WLAN MAC/BB */
1577 +#define AR531X_RESET_APB 0x00000400 /* cold reset APB (ar5312) */
1578 +#define AR531X_RESET_WARM_PROC 0x00001000 /* warm reset MIPS core */
1579 +#define AR531X_RESET_WARM_WLAN0_MAC 0x00002000 /* warm reset WLAN0 MAC */
1580 +#define AR531X_RESET_WARM_WLAN0_BB 0x00004000 /* warm reset WLAN0 BaseBand */
1581 +#define AR531X_RESET_NMI 0x00010000 /* send an NMI to the processor */
1582 +#define AR531X_RESET_WARM_WLAN1_MAC 0x00020000 /* warm reset WLAN1 mac */
1583 +#define AR531X_RESET_WARM_WLAN1_BB 0x00040000 /* warm reset WLAN1 baseband */
1584 +#define AR531X_RESET_LOCAL_BUS 0x00080000 /* reset local bus */
1585 +#define AR531X_RESET_WDOG 0x00100000 /* last reset was a watchdog */
1587 +#define AR531X_RESET_WMAC0_BITS \
1588 + AR531X_RESET_WLAN0 |\
1589 + AR531X_RESET_WARM_WLAN0_MAC |\
1590 + AR531X_RESET_WARM_WLAN0_BB
1592 +#define AR531X_RESERT_WMAC1_BITS \
1593 + AR531X_RESET_WLAN1 |\
1594 + AR531X_RESET_WARM_WLAN1_MAC |\
1595 + AR531X_RESET_WARM_WLAN1_BB
1597 +/* AR5312_CLOCKCTL1 register bit field definitions */
1598 +#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
1599 +#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
1600 +#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
1601 +#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
1602 +#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
1604 +/* Valid for AR5312 and AR2312 */
1605 +#define AR5312_CLOCKCTL1_PREDIVIDE_MASK 0x00000030
1606 +#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT 4
1607 +#define AR5312_CLOCKCTL1_MULTIPLIER_MASK 0x00001f00
1608 +#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT 8
1609 +#define AR5312_CLOCKCTL1_DOUBLER_MASK 0x00010000
1611 +/* Valid for AR2313 */
1612 +#define AR2313_CLOCKCTL1_PREDIVIDE_MASK 0x00003000
1613 +#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT 12
1614 +#define AR2313_CLOCKCTL1_MULTIPLIER_MASK 0x001f0000
1615 +#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT 16
1616 +#define AR2313_CLOCKCTL1_DOUBLER_MASK 0x00000000
1619 +/* AR531X_ENABLE register bit field definitions */
1620 +#define AR531X_ENABLE_WLAN0 0x0001
1621 +#define AR531X_ENABLE_ENET0 0x0002
1622 +#define AR531X_ENABLE_ENET1 0x0004
1623 +#define AR531X_ENABLE_UART_AND_WLAN1_PIO 0x0008 /* UART, and WLAN1 PIOs */
1624 +#define AR531X_ENABLE_WLAN1_DMA 0x0010 /* WLAN1 DMAs */
1625 +#define AR531X_ENABLE_WLAN1 \
1626 + (AR531X_ENABLE_UART_AND_WLAN1_PIO | AR531X_ENABLE_WLAN1_DMA)
1628 +/* AR531X_REV register bit field definitions */
1629 +#define AR531X_REV_WMAC_MAJ 0xf000
1630 +#define AR531X_REV_WMAC_MAJ_S 12
1631 +#define AR531X_REV_WMAC_MIN 0x0f00
1632 +#define AR531X_REV_WMAC_MIN_S 8
1633 +#define AR531X_REV_MAJ 0x00f0
1634 +#define AR531X_REV_MAJ_S 4
1635 +#define AR531X_REV_MIN 0x000f
1636 +#define AR531X_REV_MIN_S 0
1637 +#define AR531X_REV_CHIP (AR531X_REV_MAJ|AR531X_REV_MIN)
1639 +/* Major revision numbers, bits 7..4 of Revision ID register */
1640 +#define AR531X_REV_MAJ_AR5312 0x4
1641 +#define AR531X_REV_MAJ_AR2313 0x5
1643 +/* Minor revision numbers, bits 3..0 of Revision ID register */
1644 +#define AR5312_REV_MIN_DUAL 0x0 /* Dual WLAN version */
1645 +#define AR5312_REV_MIN_SINGLE 0x1 /* Single WLAN version */
1647 +/* AR531X_FLASHCTL register bit field definitions */
1648 +#define FLASHCTL_IDCY 0x0000000f /* Idle cycle turn around time */
1649 +#define FLASHCTL_IDCY_S 0
1650 +#define FLASHCTL_WST1 0x000003e0 /* Wait state 1 */
1651 +#define FLASHCTL_WST1_S 5
1652 +#define FLASHCTL_RBLE 0x00000400 /* Read byte lane enable */
1653 +#define FLASHCTL_WST2 0x0000f800 /* Wait state 2 */
1654 +#define FLASHCTL_WST2_S 11
1655 +#define FLASHCTL_AC 0x00070000 /* Flash address check (added) */
1656 +#define FLASHCTL_AC_S 16
1657 +#define FLASHCTL_AC_128K 0x00000000
1658 +#define FLASHCTL_AC_256K 0x00010000
1659 +#define FLASHCTL_AC_512K 0x00020000
1660 +#define FLASHCTL_AC_1M 0x00030000
1661 +#define FLASHCTL_AC_2M 0x00040000
1662 +#define FLASHCTL_AC_4M 0x00050000
1663 +#define FLASHCTL_AC_8M 0x00060000
1664 +#define FLASHCTL_AC_RES 0x00070000 /* 16MB is not supported */
1665 +#define FLASHCTL_E 0x00080000 /* Flash bank enable (added) */
1666 +#define FLASHCTL_BUSERR 0x01000000 /* Bus transfer error status flag */
1667 +#define FLASHCTL_WPERR 0x02000000 /* Write protect error status flag */
1668 +#define FLASHCTL_WP 0x04000000 /* Write protect */
1669 +#define FLASHCTL_BM 0x08000000 /* Burst mode */
1670 +#define FLASHCTL_MW 0x30000000 /* Memory width */
1671 +#define FLASHCTL_MWx8 0x00000000 /* Memory width x8 */
1672 +#define FLASHCTL_MWx16 0x10000000 /* Memory width x16 */
1673 +#define FLASHCTL_MWx32 0x20000000 /* Memory width x32 (not supported) */
1674 +#define FLASHCTL_ATNR 0x00000000 /* Access type == no retry */
1675 +#define FLASHCTL_ATR 0x80000000 /* Access type == retry every */
1676 +#define FLASHCTL_ATR4 0xc0000000 /* Access type == retry every 4 */
1678 +/* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices. */
1679 +#define AR531X_FLASHCTL0 (AR531X_FLASHCTL + 0x00)
1680 +#define AR531X_FLASHCTL1 (AR531X_FLASHCTL + 0x04)
1681 +#define AR531X_FLASHCTL2 (AR531X_FLASHCTL + 0x08)
1683 +/* ARM SDRAM Controller -- just enough to determine memory size */
1684 +#define AR531X_MEM_CFG1 (AR531X_SDRAMCTL + 0x04)
1685 +#define MEM_CFG1_AC0 0x00000700 /* bank 0: SDRAM addr check (added) */
1686 +#define MEM_CFG1_AC0_S 8
1687 +#define MEM_CFG1_AC1 0x00007000 /* bank 1: SDRAM addr check (added) */
1688 +#define MEM_CFG1_AC1_S 12
1690 +/* GPIO Address Map */
1691 +#define AR531X_GPIO (AR531X_APBBASE + 0x2000)
1692 +#define AR531X_GPIO_DO (AR531X_GPIO + 0x00) /* output register */
1693 +#define AR531X_GPIO_DI (AR531X_GPIO + 0x04) /* intput register */
1694 +#define AR531X_GPIO_CR (AR531X_GPIO + 0x08) /* control register */
1696 +/* GPIO Control Register bit field definitions */
1697 +#define AR531X_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
1698 +#define AR531X_GPIO_CR_O(x) (0 << (x)) /* mask for output */
1699 +#define AR531X_GPIO_CR_I(x) (1 << (x)) /* mask for input */
1700 +#define AR531X_GPIO_CR_INT(x) (1 << ((x)+8)) /* mask for interrupt */
1701 +#define AR531X_GPIO_CR_UART(x) (1 << ((x)+16)) /* uart multiplex */
1702 +#define AR531X_NUM_GPIO 8
1708 +++ b/arch/mips/ar231x/ar5312.c
1711 + * This file is subject to the terms and conditions of the GNU General Public
1712 + * License. See the file "COPYING" in the main directory of this archive
1713 + * for more details.
1715 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
1716 + * Copyright (C) 2006 FON Technology, SL.
1717 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
1718 + * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
1722 + * Platform devices for Atheros SoCs
1725 +#include <linux/autoconf.h>
1726 +#include <linux/init.h>
1727 +#include <linux/module.h>
1728 +#include <linux/types.h>
1729 +#include <linux/string.h>
1730 +#include <linux/mtd/physmap.h>
1731 +#include <linux/platform_device.h>
1732 +#include <linux/kernel.h>
1733 +#include <linux/reboot.h>
1734 +#include <linux/leds.h>
1735 +#include <asm/bootinfo.h>
1736 +#include <asm/reboot.h>
1737 +#include <asm/time.h>
1738 +#include <asm/irq.h>
1739 +#include <asm/io.h>
1742 +#include <ar231x_platform.h>
1743 +#include <ar5312_regs.h>
1744 +#include <ar231x.h>
1745 +#include "devices.h"
1746 +#include "ar5312.h"
1748 +#define IS_5312() (current_cpu_data.cputype != CPU_4KEC)
1751 +ar5312_misc_irq_dispatch(void)
1753 + unsigned int ar231x_misc_intrs = ar231x_read_reg(AR531X_ISR) & ar231x_read_reg(AR531X_IMR);
1755 + if (ar231x_misc_intrs & AR531X_ISR_TIMER) {
1756 + do_IRQ(AR531X_MISC_IRQ_TIMER);
1757 + (void)ar231x_read_reg(AR531X_TIMER);
1758 + } else if (ar231x_misc_intrs & AR531X_ISR_AHBPROC)
1759 + do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
1760 + else if ((ar231x_misc_intrs & AR531X_ISR_UART0))
1761 + do_IRQ(AR531X_MISC_IRQ_UART0);
1762 + else if (ar231x_misc_intrs & AR531X_ISR_WD)
1763 + do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
1765 + do_IRQ(AR531X_MISC_IRQ_NONE);
1769 +ar5312_irq_dispatch(void)
1771 + int pending = read_c0_status() & read_c0_cause();
1773 + if (pending & CAUSEF_IP2)
1774 + do_IRQ(AR5312_IRQ_WLAN0_INTRS);
1775 + else if (pending & CAUSEF_IP3)
1776 + do_IRQ(AR5312_IRQ_ENET0_INTRS);
1777 + else if (pending & CAUSEF_IP4)
1778 + do_IRQ(AR5312_IRQ_ENET1_INTRS);
1779 + else if (pending & CAUSEF_IP5)
1780 + do_IRQ(AR5312_IRQ_WLAN1_INTRS);
1781 + else if (pending & CAUSEF_IP6)
1782 + ar5312_misc_irq_dispatch();
1783 + else if (pending & CAUSEF_IP7)
1784 + do_IRQ(AR531X_IRQ_CPU_CLOCK);
1788 +/* Enable the specified AR531X_MISC_IRQ interrupt */
1790 +ar5312_misc_intr_enable(unsigned int irq)
1794 + imr = ar231x_read_reg(AR531X_IMR);
1795 + imr |= (1 << (irq - AR531X_MISC_IRQ_BASE - 1));
1796 + ar231x_write_reg(AR531X_IMR, imr);
1799 +/* Disable the specified AR531X_MISC_IRQ interrupt */
1801 +ar5312_misc_intr_disable(unsigned int irq)
1805 + imr = ar231x_read_reg(AR531X_IMR);
1806 + imr &= ~(1 << (irq - AR531X_MISC_IRQ_BASE - 1));
1807 + ar231x_write_reg(AR531X_IMR, imr);
1808 + ar231x_read_reg(AR531X_IMR); /* flush write buffer */
1811 +static unsigned int
1812 +ar5312_misc_intr_startup(unsigned int irq)
1814 + ar5312_misc_intr_enable(irq);
1819 +ar5312_misc_intr_end(unsigned int irq)
1821 + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
1822 + ar5312_misc_intr_enable(irq);
1825 +static struct irq_chip ar5312_misc_intr_controller = {
1826 + .name = "AR5312-MISC",
1827 + .startup = ar5312_misc_intr_startup,
1828 + .shutdown = ar5312_misc_intr_disable,
1829 + .enable = ar5312_misc_intr_enable,
1830 + .disable = ar5312_misc_intr_disable,
1831 + .ack = ar5312_misc_intr_disable,
1832 + .end = ar5312_misc_intr_end,
1836 +static irqreturn_t ar5312_ahb_proc_handler(int cpl, void *dev_id)
1838 + u32 proc1 = ar231x_read_reg(AR531X_PROC1);
1839 + u32 procAddr = ar231x_read_reg(AR531X_PROCADDR); /* clears error state */
1840 + u32 dma1 = ar231x_read_reg(AR531X_DMA1);
1841 + u32 dmaAddr = ar231x_read_reg(AR531X_DMAADDR); /* clears error state */
1843 + printk("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
1844 + procAddr, proc1, dmaAddr, dma1);
1846 + machine_restart("AHB error"); /* Catastrophic failure */
1847 + return IRQ_HANDLED;
1851 +static struct irqaction ar5312_ahb_proc_interrupt = {
1852 + .handler = ar5312_ahb_proc_handler,
1853 + .flags = IRQF_DISABLED,
1854 + .name = "ar5312_ahb_proc_interrupt",
1858 +static struct irqaction cascade = {
1859 + .handler = no_action,
1860 + .flags = IRQF_DISABLED,
1861 + .name = "cascade",
1864 +void __init ar5312_irq_init(void)
1871 + ar231x_irq_dispatch = ar5312_irq_dispatch;
1872 + for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
1873 + int irq = AR531X_MISC_IRQ_BASE + i;
1874 + irq_desc[irq].status = IRQ_DISABLED;
1875 + irq_desc[irq].action = NULL;
1876 + irq_desc[irq].depth = 1;
1877 + irq_desc[irq].chip = &ar5312_misc_intr_controller;
1879 + setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt);
1880 + setup_irq(AR5312_IRQ_MISC_INTRS, &cascade);
1883 +const struct ar231x_gpiodev ar5312_gpiodev;
1886 +ar5312_gpio_get_output(void)
1889 + reg = ~(ar231x_read_reg(AR531X_GPIO_CR));
1890 + reg &= ar5312_gpiodev.valid_mask;
1895 +ar5312_gpio_set_output(u32 mask, u32 val)
1899 + reg = ar231x_read_reg(AR531X_GPIO_CR);
1902 + ar231x_write_reg(AR531X_GPIO_CR, reg);
1907 +ar5312_gpio_get(void)
1910 + reg = ar231x_read_reg(AR531X_GPIO_DI);
1911 + reg &= ar5312_gpiodev.valid_mask;
1916 +ar5312_gpio_set(u32 mask, u32 value)
1919 + reg = ar231x_read_reg(AR531X_GPIO_DO);
1922 + ar231x_write_reg(AR531X_GPIO_DO, reg);
1926 +const struct ar231x_gpiodev ar5312_gpiodev = {
1927 + .valid_mask = (1 << 8) - 1,
1928 + .get_output = ar5312_gpio_get_output,
1929 + .set_output = ar5312_gpio_set_output,
1930 + .get = ar5312_gpio_get,
1931 + .set = ar5312_gpio_set,
1934 +static struct physmap_flash_data ar5312_flash_data = {
1938 +static struct resource ar5312_flash_resource = {
1939 + .start = AR531X_FLASH,
1940 + .end = AR531X_FLASH + 0x800000 - 1,
1941 + .flags = IORESOURCE_MEM,
1944 +static struct ar231x_eth ar5312_eth0_data = {
1945 + .reset_base = AR531X_RESET,
1946 + .reset_mac = AR531X_RESET_ENET0,
1947 + .reset_phy = AR531X_RESET_EPHY0,
1948 + .phy_base = KSEG1ADDR(AR531X_ENET0),
1949 + .config = &ar231x_board,
1952 +static struct ar231x_eth ar5312_eth1_data = {
1953 + .reset_base = AR531X_RESET,
1954 + .reset_mac = AR531X_RESET_ENET1,
1955 + .reset_phy = AR531X_RESET_EPHY1,
1956 + .phy_base = KSEG1ADDR(AR531X_ENET1),
1957 + .config = &ar231x_board,
1960 +static struct platform_device ar5312_physmap_flash = {
1961 + .name = "physmap-flash",
1963 + .dev.platform_data = &ar5312_flash_data,
1964 + .resource = &ar5312_flash_resource,
1965 + .num_resources = 1,
1968 +#ifdef CONFIG_LEDS_GPIO
1969 +static struct gpio_led ar5312_leds[] = {
1970 + { .name = "wlan", .gpio = 0, .active_low = 1, },
1973 +static const struct gpio_led_platform_data ar5312_led_data = {
1974 + .num_leds = ARRAY_SIZE(ar5312_leds),
1975 + .leds = (void *) ar5312_leds,
1978 +static struct platform_device ar5312_gpio_leds = {
1979 + .name = "leds-gpio",
1981 + .dev.platform_data = (void *) &ar5312_led_data,
1982 + .num_resources = 1,
1987 + * NB: This mapping size is larger than the actual flash size,
1988 + * but this shouldn't be a problem here, because the flash
1989 + * will simply be mapped multiple times.
1991 +static char __init *ar5312_flash_limit(void)
1995 + * Configure flash bank 0.
1996 + * Assume 8M window size. Flash will be aliased if it's smaller
1998 + ctl = FLASHCTL_E |
2001 + (0x01 << FLASHCTL_IDCY_S) |
2002 + (0x07 << FLASHCTL_WST1_S) |
2003 + (0x07 << FLASHCTL_WST2_S) |
2004 + (ar231x_read_reg(AR531X_FLASHCTL0) & FLASHCTL_MW);
2006 + ar231x_write_reg(AR531X_FLASHCTL0, ctl);
2008 + /* Disable other flash banks */
2009 + ar231x_write_reg(AR531X_FLASHCTL1,
2010 + ar231x_read_reg(AR531X_FLASHCTL1) & ~(FLASHCTL_E | FLASHCTL_AC));
2012 + ar231x_write_reg(AR531X_FLASHCTL2,
2013 + ar231x_read_reg(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC));
2015 + return (char *) KSEG1ADDR(AR531X_FLASH + 0x800000);
2018 +int __init ar5312_init_devices(void)
2020 + struct ar231x_boarddata *config;
2028 + /* Locate board/radio config data */
2029 + ar231x_find_config(ar5312_flash_limit());
2030 + config = ar231x_board.config;
2034 + * Chip IDs and hardware detection for some Atheros
2035 + * models are really broken!
2037 + * Atheros uses a disabled WMAC0 and Silicon ID of AR5312
2038 + * as indication for AR2312, which is otherwise
2039 + * indistinguishable from the real AR5312.
2041 + if (ar231x_board.radio) {
2042 + radio = ar231x_board.radio + AR531X_RADIO_MASK_OFF;
2043 + if ((*((const u32 *) radio) & AR531X_RADIO0_MASK) == 0)
2044 + config->flags |= BD_ISCASPER;
2048 + /* AR2313 has CPU minor rev. 10 */
2049 + if ((current_cpu_data.processor_id & 0xff) == 0x0a)
2050 + ar231x_devtype = DEV_TYPE_AR2313;
2052 + /* AR2312 shares the same Silicon ID as AR5312 */
2053 + else if (config->flags & BD_ISCASPER)
2054 + ar231x_devtype = DEV_TYPE_AR2312;
2056 + /* Everything else is probably AR5312 or compatible */
2058 + ar231x_devtype = DEV_TYPE_AR5312;
2060 + /* fixup flash width */
2061 + fctl = ar231x_read_reg(AR531X_FLASHCTL) & FLASHCTL_MW;
2063 + case FLASHCTL_MWx16:
2064 + ar5312_flash_data.width = 2;
2066 + case FLASHCTL_MWx8:
2068 + ar5312_flash_data.width = 1;
2072 + platform_device_register(&ar5312_physmap_flash);
2074 +#ifdef CONFIG_LEDS_GPIO
2075 + ar5312_leds[0].gpio = config->sysLedGpio;
2076 + platform_device_register(&ar5312_gpio_leds);
2079 + /* Fix up MAC addresses if necessary */
2080 + if (!memcmp(config->enet0_mac, "\xff\xff\xff\xff\xff\xff", 6))
2081 + memcpy(config->enet0_mac, config->enet1_mac, 6);
2083 + /* If ENET0 and ENET1 have the same mac address,
2084 + * increment the one from ENET1 */
2085 + if (memcmp(config->enet0_mac, config->enet1_mac, 6) == 0) {
2086 + c = config->enet1_mac + 5;
2087 + while ((c >= config->enet1_mac) && !(++(*c)))
2091 + switch(ar231x_devtype) {
2092 + case DEV_TYPE_AR5312:
2093 + ar5312_eth0_data.macaddr = config->enet0_mac;
2094 + ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET0),
2095 + AR5312_IRQ_ENET0_INTRS, &ar5312_eth0_data);
2097 + ar5312_eth1_data.macaddr = config->enet1_mac;
2098 + ar231x_add_ethernet(1, KSEG1ADDR(AR531X_ENET1),
2099 + AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
2101 + if (!ar231x_board.radio)
2104 + if (*((u32 *) ar231x_board.radio) & AR531X_RADIO0_MASK)
2105 + ar231x_add_wmac(0, AR531X_WLAN0,
2106 + AR5312_IRQ_WLAN0_INTRS);
2110 + * AR2312/3 ethernet uses the PHY of ENET0, but the MAC
2111 + * of ENET1. Atheros calls it 'twisted' for a reason :)
2113 + case DEV_TYPE_AR2312:
2114 + case DEV_TYPE_AR2313:
2115 + ar5312_eth1_data.phy_base = ar5312_eth0_data.phy_base;
2116 + ar5312_eth1_data.reset_phy = ar5312_eth0_data.reset_phy;
2117 + ar5312_eth1_data.macaddr = config->enet0_mac;
2118 + ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET1),
2119 + AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
2121 + if (!ar231x_board.radio)
2128 + if (*((u32 *) ar231x_board.radio) & AR531X_RADIO1_MASK)
2129 + ar231x_add_wmac(1, AR531X_WLAN1,
2130 + AR5312_IRQ_WLAN1_INTRS);
2136 +static void ar5312_restart(char *command)
2138 + /* reset the system */
2139 + local_irq_disable();
2141 + ar231x_write_reg(AR531X_RESET, AR531X_RESET_SYSTEM);
2147 + * This table is indexed by bits 5..4 of the CLOCKCTL1 register
2148 + * to determine the predevisor value.
2150 +static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
2159 +ar5312_cpu_frequency(void)
2161 + unsigned int result;
2162 + unsigned int predivide_mask, predivide_shift;
2163 + unsigned int multiplier_mask, multiplier_shift;
2164 + unsigned int clockCtl1, preDivideSelect, preDivisor, multiplier;
2165 + unsigned int doubler_mask;
2168 + /* Trust the bootrom's idea of cpu frequency. */
2169 + if ((result = ar231x_read_reg(AR5312_SCRATCH)))
2172 + devid = ar231x_board.devid;
2173 + devid &= AR531X_REV_MAJ;
2174 + devid >>= AR531X_REV_MAJ_S;
2175 + if (devid == AR531X_REV_MAJ_AR2313) {
2176 + predivide_mask = AR2313_CLOCKCTL1_PREDIVIDE_MASK;
2177 + predivide_shift = AR2313_CLOCKCTL1_PREDIVIDE_SHIFT;
2178 + multiplier_mask = AR2313_CLOCKCTL1_MULTIPLIER_MASK;
2179 + multiplier_shift = AR2313_CLOCKCTL1_MULTIPLIER_SHIFT;
2180 + doubler_mask = AR2313_CLOCKCTL1_DOUBLER_MASK;
2181 + } else { /* AR5312 and AR2312 */
2182 + predivide_mask = AR5312_CLOCKCTL1_PREDIVIDE_MASK;
2183 + predivide_shift = AR5312_CLOCKCTL1_PREDIVIDE_SHIFT;
2184 + multiplier_mask = AR5312_CLOCKCTL1_MULTIPLIER_MASK;
2185 + multiplier_shift = AR5312_CLOCKCTL1_MULTIPLIER_SHIFT;
2186 + doubler_mask = AR5312_CLOCKCTL1_DOUBLER_MASK;
2190 + * Clocking is derived from a fixed 40MHz input clock.
2192 + * cpuFreq = InputClock * MULT (where MULT is PLL multiplier)
2193 + * sysFreq = cpuFreq / 4 (used for APB clock, serial,
2194 + * flash, Timer, Watchdog Timer)
2196 + * cntFreq = cpuFreq / 2 (use for CPU count/compare)
2198 + * So, for example, with a PLL multiplier of 5, we have
2200 + * cpuFreq = 200MHz
2202 + * cntFreq = 100MHz
2204 + * We compute the CPU frequency, based on PLL settings.
2207 + clockCtl1 = ar231x_read_reg(AR5312_CLOCKCTL1);
2208 + preDivideSelect = (clockCtl1 & predivide_mask) >> predivide_shift;
2209 + preDivisor = CLOCKCTL1_PREDIVIDE_TABLE[preDivideSelect];
2210 + multiplier = (clockCtl1 & multiplier_mask) >> multiplier_shift;
2212 + if (clockCtl1 & doubler_mask) {
2213 + multiplier = multiplier << 1;
2215 + return (40000000 / preDivisor) * multiplier;
2219 +ar5312_sys_frequency(void)
2221 + return ar5312_cpu_frequency() / 4;
2225 +ar5312_time_init(void)
2230 + mips_hpt_frequency = ar5312_cpu_frequency() / 2;
2235 +ar5312_prom_init(void)
2237 + u32 memsize, memcfg, bank0AC, bank1AC;
2243 + devid = ar231x_read_reg(AR531X_REV);
2244 + devid &= AR531X_REV_MAJ | AR531X_REV_MIN;
2246 + /* Detect memory size */
2247 + memcfg = ar231x_read_reg(AR531X_MEM_CFG1);
2248 + bank0AC = (memcfg & MEM_CFG1_AC0) >> MEM_CFG1_AC0_S;
2249 + bank1AC = (memcfg & MEM_CFG1_AC1) >> MEM_CFG1_AC1_S;
2250 + memsize = (bank0AC ? (1 << (bank0AC+1)) : 0)
2251 + + (bank1AC ? (1 << (bank1AC+1)) : 0);
2253 + add_memory_region(0, memsize, BOOT_MEM_RAM);
2254 + ar231x_gpiodev = &ar5312_gpiodev;
2255 + ar231x_board.devid = (u16) devid;
2259 +ar5312_plat_setup(void)
2264 + /* Clear any lingering AHB errors */
2265 + ar231x_read_reg(AR531X_PROCADDR);
2266 + ar231x_read_reg(AR531X_DMAADDR);
2267 + ar231x_write_reg(AR531X_WD_CTRL, AR531X_WD_CTRL_IGNORE_EXPIRATION);
2269 + _machine_restart = ar5312_restart;
2270 + ar231x_serial_setup(KSEG1ADDR(AR531X_UART0), ar5312_sys_frequency());
2274 +++ b/arch/mips/ar231x/pci.c
2277 + * This program is free software; you can redistribute it and/or
2278 + * modify it under the terms of the GNU General Public License
2279 + * as published by the Free Software Foundation; either version 2
2280 + * of the License, or (at your option) any later version.
2282 + * This program is distributed in the hope that it will be useful,
2283 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
2284 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2285 + * GNU General Public License for more details.
2287 + * You should have received a copy of the GNU General Public License
2288 + * along with this program; if not, write to the Free Software
2289 + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
2292 +#include <linux/types.h>
2293 +#include <linux/pci.h>
2294 +#include <linux/kernel.h>
2295 +#include <linux/init.h>
2296 +#include <linux/mm.h>
2297 +#include <linux/spinlock.h>
2298 +#include <linux/delay.h>
2299 +#include <linux/irq.h>
2300 +#include <asm/bootinfo.h>
2301 +#include <asm/paccess.h>
2302 +#include <asm/irq_cpu.h>
2303 +#include <asm/io.h>
2304 +#include <ar231x_platform.h>
2305 +#include <ar231x.h>
2306 +#include <ar2315_regs.h>
2308 +#define AR531X_MEM_BASE 0x80800000UL
2309 +#define AR531X_MEM_SIZE 0x00ffffffUL
2310 +#define AR531X_IO_SIZE 0x00007fffUL
2312 +#define IS_2315() (current_cpu_data.cputype == CPU_4KEC)
2314 +static unsigned long configspace;
2316 +static int config_access(int devfn, int where, int size, u32 *ptr, bool write)
2318 + unsigned long flags;
2319 + int func = PCI_FUNC(devfn);
2320 + int dev = PCI_SLOT(devfn);
2325 + if (((dev != 0) && (dev != 3)) || (func > 2))
2326 + return PCIBIOS_DEVICE_NOT_FOUND;
2328 + /* Select Configuration access */
2329 + local_irq_save(flags);
2330 + ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL);
2333 + addr = (u32) configspace + (1 << (13 + dev)) + (func << 8) + where;
2336 + else if (size == 2)
2342 + err = put_dbe(value, (u8 *) addr);
2343 + else if (size == 2)
2344 + err = put_dbe(value, (u16 *) addr);
2345 + else if (size == 4)
2346 + err = put_dbe(value, (u32 *) addr);
2349 + err = get_dbe(value, (u8 *) addr);
2350 + else if (size == 2)
2351 + err = get_dbe(value, (u16 *) addr);
2352 + else if (size == 4)
2353 + err = get_dbe(value, (u32 *) addr);
2355 + *ptr = 0xffffffff;
2360 + /* Select Memory access */
2361 + ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0);
2362 + local_irq_restore(flags);
2364 + return (err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL);
2367 +static int ar231x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * value)
2369 + return config_access(devfn, where, size, value, 0);
2372 +static int ar231x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
2374 + return config_access(devfn, where, size, &value, 1);
2377 +struct pci_ops ar231x_pci_ops = {
2378 + .read = ar231x_pci_read,
2379 + .write = ar231x_pci_write,
2382 +static struct resource ar231x_mem_resource = {
2383 + .name = "AR531x PCI MEM",
2384 + .start = AR531X_MEM_BASE,
2385 + .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE - 1 + 0x4000000,
2386 + .flags = IORESOURCE_MEM,
2389 +static struct resource ar231x_io_resource = {
2390 + .name = "AR531x PCI I/O",
2391 + .start = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE,
2392 + .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - 1,
2393 + .flags = IORESOURCE_IO,
2396 +struct pci_controller ar231x_pci_controller = {
2397 + .pci_ops = &ar231x_pci_ops,
2398 + .mem_resource = &ar231x_mem_resource,
2399 + .io_resource = &ar231x_io_resource,
2400 + .mem_offset = 0x00000000UL,
2401 + .io_offset = 0x00000000UL,
2404 +int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
2406 + return AR2315_IRQ_LCBUS_PCI;
2409 +int pcibios_plat_dev_init(struct pci_dev *dev)
2411 + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 5);
2412 + pci_write_config_word(dev, 0x40, 0);
2414 + /* Clear any pending Abort or external Interrupts
2415 + * and enable interrupt processing */
2416 + ar231x_mask_reg(AR2315_PCI_INTEN_REG, AR2315_PCI_INT_ENABLE, 0);
2417 + ar231x_write_reg(AR2315_PCI_INT_STATUS, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
2418 + ar231x_write_reg(AR2315_PCI_INT_MASK, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
2419 + ar231x_mask_reg(AR2315_PCI_INTEN_REG, 0, AR2315_PCI_INT_ENABLE);
2425 +ar2315_pci_fixup(struct pci_dev *dev)
2427 + unsigned int devfn = dev->devfn;
2429 + if (dev->bus->number != 0)
2432 + /* Only fix up the PCI host settings */
2433 + if ((PCI_SLOT(devfn) != 3) || (PCI_FUNC(devfn) != 0))
2436 + /* Fix up MBARs */
2437 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, HOST_PCI_MBAR0);
2438 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, HOST_PCI_MBAR1);
2439 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_2, HOST_PCI_MBAR2);
2440 + pci_write_config_dword(dev, PCI_COMMAND,
2441 + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL |
2442 + PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY | PCI_COMMAND_SERR |
2443 + PCI_COMMAND_FAST_BACK);
2445 +DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, ar2315_pci_fixup);
2448 +ar2315_pci_init(void)
2455 + configspace = (unsigned long) ioremap_nocache(0x80000000, 1*1024*1024); /* Remap PCI config space */
2456 + ar231x_pci_controller.io_map_base =
2457 + (unsigned long) ioremap_nocache(AR531X_MEM_BASE + AR531X_MEM_SIZE, AR531X_IO_SIZE);
2458 + set_io_port_base(ar231x_pci_controller.io_map_base); /* PCI I/O space */
2460 + reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
2463 + reg &= ~AR2315_RESET_PCIDMA;
2464 + ar231x_write_reg(AR2315_RESET, reg);
2467 + ar231x_mask_reg(AR2315_ENDIAN_CTL, 0,
2468 + AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE);
2470 + ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
2471 + (AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S));
2472 + ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
2473 + ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK,
2474 + AR2315_IF_PCI | AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR |
2475 + (AR2315_IF_PCI_CLK_OUTPUT_CLK << AR2315_IF_PCI_CLK_SHIFT));
2477 + /* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */
2478 + ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
2479 + AR2315_PCIRST_LOW);
2482 + /* Bring the PCI out of reset */
2483 + ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
2484 + AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8);
2486 + ar231x_write_reg(AR2315_PCI_UNCACHE_CFG,
2487 + 0x1E | /* 1GB uncached */
2488 + (1 << 5) | /* Enable uncached */
2489 + (0x2 << 30) /* Base: 0x80000000 */
2491 + ar231x_read_reg(AR2315_PCI_UNCACHE_CFG);
2495 + /* dirty hack - anyone with a datasheet that knows the memory map ? */
2496 + ioport_resource.start = 0x10000000;
2497 + ioport_resource.end = 0xffffffff;
2498 + iomem_resource.start = 0x10000000;
2499 + iomem_resource.end = 0xffffffff;
2501 + register_pci_controller(&ar231x_pci_controller);
2506 +arch_initcall(ar2315_pci_init);
2508 +++ b/arch/mips/ar231x/ar2315.c
2511 + * This file is subject to the terms and conditions of the GNU General Public
2512 + * License. See the file "COPYING" in the main directory of this archive
2513 + * for more details.
2515 + * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
2516 + * Copyright (C) 2006 FON Technology, SL.
2517 + * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
2518 + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
2522 + * Platform devices for Atheros SoCs
2525 +#include <linux/autoconf.h>
2526 +#include <linux/init.h>
2527 +#include <linux/module.h>
2528 +#include <linux/types.h>
2529 +#include <linux/string.h>
2530 +#include <linux/platform_device.h>
2531 +#include <linux/kernel.h>
2532 +#include <linux/reboot.h>
2533 +#include <linux/delay.h>
2534 +#include <linux/leds.h>
2535 +#include <asm/bootinfo.h>
2536 +#include <asm/reboot.h>
2537 +#include <asm/time.h>
2538 +#include <asm/irq.h>
2539 +#include <asm/io.h>
2540 +#include <asm/gpio.h>
2542 +#include <ar231x_platform.h>
2543 +#include <ar2315_regs.h>
2544 +#include <ar231x.h>
2545 +#include "devices.h"
2546 +#include "ar2315.h"
2548 +#define IS_2315() (current_cpu_data.cputype == CPU_4KEC)
2550 +static u32 gpiointmask = 0, gpiointval = 0;
2552 +static inline void ar2315_gpio_irq(void)
2557 + /* only do one gpio interrupt at a time */
2558 + pend = (ar231x_read_reg(AR2315_GPIO_DI) ^ gpiointval) & gpiointmask;
2563 + pend ^= (1 << bit);
2564 + gpiointval ^= (1 << bit);
2566 + /* ACK the interrupt only if we handled all bits */
2568 + ar231x_write_reg(AR2315_ISR, ar231x_read_reg(AR2315_IMR) | ~AR2315_ISR_GPIO);
2570 + do_IRQ(AR531X_GPIO_IRQ_BASE + fls(pend) - 1);
2573 +#ifdef CONFIG_ATHEROS_AR2315_PCI
2574 +static inline void pci_abort_irq(void)
2576 + ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT);
2579 +static inline void pci_ack_irq(void)
2581 + ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_EXT_INT);
2584 +void ar2315_pci_irq(int irq)
2586 + if (ar231x_read_reg(AR2315_PCI_INT_STATUS) == AR2315_PCI_ABORT_INT)
2593 +#endif /* CONFIG_ATHEROS_AR2315_PCI */
2596 + * Called when an interrupt is received, this function
2597 + * determines exactly which interrupt it was, and it
2598 + * invokes the appropriate handler.
2600 + * Implicitly, we also define interrupt priority by
2601 + * choosing which to dispatch first.
2604 +ar2315_irq_dispatch(void)
2606 + int pending = read_c0_status() & read_c0_cause();
2608 + if (pending & CAUSEF_IP3)
2609 + do_IRQ(AR2315_IRQ_WLAN0_INTRS);
2610 + else if (pending & CAUSEF_IP4)
2611 + do_IRQ(AR2315_IRQ_ENET0_INTRS);
2612 +#ifdef CONFIG_ATHEROS_AR2315_PCI
2613 + else if (pending & CAUSEF_IP5)
2614 + ar2315_pci_irq(AR2315_IRQ_LCBUS_PCI);
2616 + else if (pending & CAUSEF_IP2) {
2617 + unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR);
2619 + if (misc_intr & AR2315_ISR_SPI)
2620 + do_IRQ(AR531X_MISC_IRQ_SPI);
2621 + else if (misc_intr & AR2315_ISR_TIMER)
2622 + do_IRQ(AR531X_MISC_IRQ_TIMER);
2623 + else if (misc_intr & AR2315_ISR_AHB)
2624 + do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
2625 + else if (misc_intr & AR2315_ISR_GPIO)
2626 + ar2315_gpio_irq();
2627 + else if (misc_intr & AR2315_ISR_UART0)
2628 + do_IRQ(AR531X_MISC_IRQ_UART0);
2629 + else if (misc_intr & AR2315_ISR_WD)
2630 + do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
2632 + do_IRQ(AR531X_MISC_IRQ_NONE);
2633 + } else if (pending & CAUSEF_IP7)
2634 + do_IRQ(AR531X_IRQ_CPU_CLOCK);
2637 +static void ar2315_set_gpiointmask(int gpio, int level)
2642 + reg = ar231x_read_reg(AR2315_GPIO_INT);
2643 + reg &= ~(AR2315_GPIO_INT_M | AR2315_GPIO_INT_LVL_M);
2644 + reg |= gpio | AR2315_GPIO_INT_LVL(level);
2645 + ar231x_write_reg(AR2315_GPIO_INT, reg);
2648 +static void ar2315_gpio_intr_enable(unsigned int irq)
2650 + unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
2653 + gpiointmask &= ~(1 << gpio);
2655 + /* reconfigure GPIO line as input */
2656 + reg = ar231x_read_reg(AR2315_GPIO_CR);
2657 + reg &= ~(AR2315_GPIO_CR_M(gpio));
2658 + reg |= AR2315_GPIO_CR_I(gpio);
2659 + ar231x_write_reg(AR2315_GPIO_CR, reg);
2661 + /* Enable interrupt with edge detection */
2662 + ar2315_set_gpiointmask(gpio, 3);
2665 +static void ar2315_gpio_intr_disable(unsigned int irq)
2667 + unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
2669 + gpiointmask |= (1 << gpio);
2671 + /* Disable interrupt */
2672 + ar2315_set_gpiointmask(gpio, 0);
2675 +static struct irq_chip ar2315_gpio_intr_controller = {
2676 + .typename = "AR2315-GPIO",
2677 + .disable = ar2315_gpio_intr_disable,
2678 + .ack = ar2315_gpio_intr_disable,
2679 + .mask_ack = ar2315_gpio_intr_disable,
2680 + .unmask = ar2315_gpio_intr_enable,
2681 + .eoi = ar2315_gpio_intr_enable,
2685 +ar2315_misc_intr_enable(unsigned int irq)
2689 + imr = ar231x_read_reg(AR2315_IMR);
2691 + case AR531X_MISC_IRQ_SPI:
2692 + imr |= AR2315_ISR_SPI;
2694 + case AR531X_MISC_IRQ_TIMER:
2695 + imr |= AR2315_ISR_TIMER;
2697 + case AR531X_MISC_IRQ_AHB_PROC:
2698 + imr |= AR2315_ISR_AHB;
2700 + case AR531X_MISC_IRQ_GPIO:
2701 + imr |= AR2315_ISR_GPIO;
2703 + case AR531X_MISC_IRQ_UART0:
2704 + imr |= AR2315_ISR_UART0;
2706 + case AR531X_MISC_IRQ_WATCHDOG:
2707 + imr |= AR2315_ISR_WD;
2712 + ar231x_write_reg(AR2315_IMR, imr);
2716 +ar2315_misc_intr_disable(unsigned int irq)
2720 + imr = ar231x_read_reg(AR2315_IMR);
2722 + case AR531X_MISC_IRQ_SPI:
2723 + imr &= ~AR2315_ISR_SPI;
2725 + case AR531X_MISC_IRQ_TIMER:
2726 + imr &= ~AR2315_ISR_TIMER;
2728 + case AR531X_MISC_IRQ_AHB_PROC:
2729 + imr &= ~AR2315_ISR_AHB;
2731 + case AR531X_MISC_IRQ_GPIO:
2732 + imr &= ~AR2315_ISR_GPIO;
2734 + case AR531X_MISC_IRQ_UART0:
2735 + imr &= ~AR2315_ISR_UART0;
2737 + case AR531X_MISC_IRQ_WATCHDOG:
2738 + imr &= ~AR2315_ISR_WD;
2743 + ar231x_write_reg(AR2315_IMR, imr);
2746 +static unsigned int
2747 +ar2315_misc_intr_startup(unsigned int irq)
2749 + ar2315_misc_intr_enable(irq);
2754 +ar2315_misc_intr_end(unsigned int irq)
2756 + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
2757 + ar2315_misc_intr_enable(irq);
2761 +static struct irq_chip ar2315_misc_intr_controller = {
2762 + .typename = "AR2315-MISC",
2763 + .startup = ar2315_misc_intr_startup,
2764 + .shutdown = ar2315_misc_intr_disable,
2765 + .enable = ar2315_misc_intr_enable,
2766 + .disable = ar2315_misc_intr_disable,
2767 + .ack = ar2315_misc_intr_disable,
2768 + .end = ar2315_misc_intr_end,
2771 +static irqreturn_t ar2315_ahb_proc_handler(int cpl, void *dev_id)
2773 + ar231x_write_reg(AR2315_AHB_ERR0, AHB_ERROR_DET);
2774 + ar231x_read_reg(AR2315_AHB_ERR1);
2776 + printk(KERN_ERR "AHB fatal error\n");
2777 + machine_restart("AHB error"); /* Catastrophic failure */
2779 + return IRQ_HANDLED;
2782 +static struct irqaction ar2315_ahb_proc_interrupt = {
2783 + .handler = ar2315_ahb_proc_handler,
2784 + .flags = IRQF_DISABLED,
2785 + .name = "ar2315_ahb_proc_interrupt",
2788 +static struct irqaction cascade = {
2789 + .handler = no_action,
2790 + .flags = IRQF_DISABLED,
2791 + .name = "cascade",
2795 +ar2315_irq_init(void)
2799 + ar231x_irq_dispatch = ar2315_irq_dispatch;
2800 + gpiointval = ar231x_read_reg(AR2315_GPIO_DI);
2801 + for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
2802 + int irq = AR531X_MISC_IRQ_BASE + i;
2803 + irq_desc[irq].status = IRQ_DISABLED;
2804 + irq_desc[irq].action = NULL;
2805 + irq_desc[irq].depth = 1;
2806 + irq_desc[irq].chip = &ar2315_misc_intr_controller;
2808 + for (i = 0; i < AR531X_GPIO_IRQ_COUNT; i++) {
2809 + int irq = AR531X_GPIO_IRQ_BASE + i;
2810 + irq_desc[irq].status = IRQ_DISABLED;
2811 + irq_desc[irq].action = NULL;
2812 + irq_desc[irq].depth = 1;
2813 + irq_desc[irq].chip = &ar2315_gpio_intr_controller;
2815 + setup_irq(AR531X_MISC_IRQ_GPIO, &cascade);
2816 + setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar2315_ahb_proc_interrupt);
2817 + setup_irq(AR2315_IRQ_MISC_INTRS, &cascade);
2820 +const struct ar231x_gpiodev ar2315_gpiodev;
2823 +ar2315_gpio_get_output(void)
2826 + reg = ar231x_read_reg(AR2315_GPIO_CR);
2827 + reg &= ar2315_gpiodev.valid_mask;
2832 +ar2315_gpio_set_output(u32 mask, u32 val)
2836 + reg = ar231x_read_reg(AR2315_GPIO_CR);
2839 + ar231x_write_reg(AR2315_GPIO_CR, reg);
2844 +ar2315_gpio_get(void)
2847 + reg = ar231x_read_reg(AR2315_GPIO_DI);
2848 + reg &= ar2315_gpiodev.valid_mask;
2853 +ar2315_gpio_set(u32 mask, u32 value)
2856 + reg = ar231x_read_reg(AR2315_GPIO_DO);
2859 + ar231x_write_reg(AR2315_GPIO_DO, reg);
2863 +const struct ar231x_gpiodev ar2315_gpiodev = {
2864 + .valid_mask = (1 << 22) - 1,
2865 + .get_output = ar2315_gpio_get_output,
2866 + .set_output = ar2315_gpio_set_output,
2867 + .get = ar2315_gpio_get,
2868 + .set = ar2315_gpio_set,
2871 +static struct ar231x_eth ar2315_eth_data = {
2872 + .reset_base = AR2315_RESET,
2873 + .reset_mac = AR2315_RESET_ENET0,
2874 + .reset_phy = AR2315_RESET_EPHY0,
2875 + .phy_base = AR2315_ENET0,
2876 + .config = &ar231x_board,
2879 +static struct resource ar2315_spiflash_res[] = {
2881 + .name = "flash_base",
2882 + .flags = IORESOURCE_MEM,
2883 + .start = KSEG1ADDR(AR2315_SPI_READ),
2884 + .end = KSEG1ADDR(AR2315_SPI_READ) + 0x1000000 - 1,
2887 + .name = "flash_regs",
2888 + .flags = IORESOURCE_MEM,
2889 + .start = 0x11300000,
2890 + .end = 0x11300012,
2894 +static struct platform_device ar2315_spiflash = {
2896 + .name = "spiflash",
2897 + .resource = ar2315_spiflash_res,
2898 + .num_resources = ARRAY_SIZE(ar2315_spiflash_res)
2901 +static struct platform_device ar2315_wdt = {
2903 + .name = "ar2315_wdt",
2906 +#define SPI_FLASH_CTL 0x00
2907 +#define SPI_FLASH_OPCODE 0x04
2908 +#define SPI_FLASH_DATA 0x08
2911 +spiflash_read_reg(int reg)
2913 + return ar231x_read_reg(KSEG1ADDR(AR2315_SPI) + reg);
2917 +spiflash_write_reg(int reg, u32 data)
2919 + ar231x_write_reg(KSEG1ADDR(AR2315_SPI) + reg, data);
2923 +spiflash_wait_status(void)
2928 + reg = spiflash_read_reg(SPI_FLASH_CTL);
2929 + } while (reg & SPI_CTL_BUSY);
2935 +spiflash_probe(void)
2939 + reg = spiflash_wait_status();
2940 + reg &= ~SPI_CTL_TX_RX_CNT_MASK;
2941 + reg |= (1 << 4) | 4 | SPI_CTL_START;
2943 + spiflash_write_reg(SPI_FLASH_OPCODE, 0xab);
2944 + spiflash_write_reg(SPI_FLASH_CTL, reg);
2946 + reg = spiflash_wait_status();
2947 + reg = spiflash_read_reg(SPI_FLASH_DATA);
2954 +#define STM_8MBIT_SIGNATURE 0x13
2955 +#define STM_16MBIT_SIGNATURE 0x14
2956 +#define STM_32MBIT_SIGNATURE 0x15
2957 +#define STM_64MBIT_SIGNATURE 0x16
2958 +#define STM_128MBIT_SIGNATURE 0x17
2961 +ar2315_flash_limit(void)
2963 + u32 flash_size = 0;
2965 + /* probe the flash chip size */
2966 + switch(spiflash_probe()) {
2967 + case STM_8MBIT_SIGNATURE:
2968 + flash_size = 0x00100000;
2970 + case STM_16MBIT_SIGNATURE:
2971 + flash_size = 0x00200000;
2973 + case STM_32MBIT_SIGNATURE:
2974 + flash_size = 0x00400000;
2976 + case STM_64MBIT_SIGNATURE:
2977 + flash_size = 0x00800000;
2979 + case STM_128MBIT_SIGNATURE:
2980 + flash_size = 0x01000000;
2984 + ar2315_spiflash_res[0].end = ar2315_spiflash_res[0].start +
2986 + return (u8 *) ar2315_spiflash_res[0].end + 1;
2989 +#ifdef CONFIG_LEDS_GPIO
2990 +static struct gpio_led ar2315_leds[6];
2991 +static struct gpio_led_platform_data ar2315_led_data = {
2992 + .leds = (void *) ar2315_leds,
2995 +static struct platform_device ar2315_gpio_leds = {
2996 + .name = "leds-gpio",
2999 + .platform_data = (void *) &ar2315_led_data,
3004 +ar2315_init_gpio(void)
3006 + static char led_names[6][6];
3009 + ar2315_led_data.num_leds = 0;
3010 + for(i = 1; i < 8; i++)
3012 + if((i == AR2315_RESET_GPIO) ||
3013 + (i == ar231x_board.config->resetConfigGpio))
3016 + if(i == ar231x_board.config->sysLedGpio)
3017 + strcpy(led_names[led], "wlan");
3019 + sprintf(led_names[led], "gpio%d", i);
3021 + ar2315_leds[led].name = led_names[led];
3022 + ar2315_leds[led].gpio = i;
3023 + ar2315_leds[led].active_low = 0;
3026 + ar2315_led_data.num_leds = led;
3027 + platform_device_register(&ar2315_gpio_leds);
3030 +static inline void ar2315_init_gpio(void)
3036 +ar2315_init_devices(void)
3041 + /* Find board configuration */
3042 + ar231x_find_config(ar2315_flash_limit());
3043 + ar2315_eth_data.macaddr = ar231x_board.config->enet0_mac;
3045 + ar2315_init_gpio();
3046 + platform_device_register(&ar2315_wdt);
3047 + platform_device_register(&ar2315_spiflash);
3048 + ar231x_add_ethernet(0, AR2315_ENET0, AR2315_IRQ_ENET0_INTRS,
3049 + &ar2315_eth_data);
3050 + ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
3056 +ar2315_restart(char *command)
3058 + void (*mips_reset_vec)(void) = (void *) 0xbfc00000;
3060 + local_irq_disable();
3062 + /* try reset the system via reset control */
3063 + ar231x_write_reg(AR2315_COLD_RESET,AR2317_RESET_SYSTEM);
3065 + /* Cold reset does not work on the AR2315/6, use the GPIO reset bits a workaround.
3066 + * give it some time to attempt a gpio based hardware reset
3067 + * (atheros reference design workaround) */
3068 + gpio_direction_output(AR2315_RESET_GPIO, 0);
3071 + /* Some boards (e.g. Senao EOC-2610) don't implement the reset logic
3072 + * workaround. Attempt to jump to the mips reset location -
3073 + * the boot loader itself might be able to recover the system */
3079 + * This table is indexed by bits 5..4 of the CLOCKCTL1 register
3080 + * to determine the predevisor value.
3082 +static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
3089 +static int __initdata PLLC_DIVIDE_TABLE[5] = {
3097 +static unsigned int __init
3098 +ar2315_sys_clk(unsigned int clockCtl)
3100 + unsigned int pllcCtrl,cpuDiv;
3101 + unsigned int pllcOut,refdiv,fdiv,divby2;
3102 + unsigned int clkDiv;
3104 + pllcCtrl = ar231x_read_reg(AR2315_PLLC_CTL);
3105 + refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
3106 + refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
3107 + fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
3108 + divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
3110 + pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
3113 + /* clkm input selected */
3114 + switch(clockCtl & CPUCLK_CLK_SEL_M) {
3117 + clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
3120 + clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
3123 + pllcOut = 40000000;
3127 + cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
3128 + cpuDiv = cpuDiv * 2 ?: 1;
3129 + return (pllcOut/(clkDiv * cpuDiv));
3132 +static inline unsigned int
3133 +ar2315_cpu_frequency(void)
3135 + return ar2315_sys_clk(ar231x_read_reg(AR2315_CPUCLK));
3138 +static inline unsigned int
3139 +ar2315_apb_frequency(void)
3141 + return ar2315_sys_clk(ar231x_read_reg(AR2315_AMBACLK));
3145 +ar2315_time_init(void)
3147 + mips_hpt_frequency = ar2315_cpu_frequency() / 2;
3151 +ar2315_prom_init(void)
3153 + u32 memsize, memcfg, devid;
3158 + memcfg = ar231x_read_reg(AR2315_MEM_CFG);
3159 + memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
3160 + memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
3161 + memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
3163 + add_memory_region(0, memsize, BOOT_MEM_RAM);
3165 + /* Detect the hardware based on the device ID */
3166 + devid = ar231x_read_reg(AR2315_SREV) & AR2315_REV_CHIP;
3170 + ar231x_devtype = DEV_TYPE_AR2317;
3173 + ar231x_devtype = DEV_TYPE_AR2315;
3176 + ar231x_gpiodev = &ar2315_gpiodev;
3177 + ar231x_board.devid = devid;
3181 +ar2315_plat_setup(void)
3188 + /* Clear any lingering AHB errors */
3189 + config = read_c0_config();
3190 + write_c0_config(config & ~0x3);
3191 + ar231x_write_reg(AR2315_AHB_ERR0,AHB_ERROR_DET);
3192 + ar231x_read_reg(AR2315_AHB_ERR1);
3193 + ar231x_write_reg(AR2315_WDC, AR2315_WDC_IGNORE_EXPIRATION);
3195 + _machine_restart = ar2315_restart;
3196 + ar231x_serial_setup(KSEG1ADDR(AR2315_UART0), ar2315_apb_frequency());
3199 +++ b/arch/mips/ar231x/ar2315.h
3204 +#ifdef CONFIG_ATHEROS_AR2315
3206 +extern void ar2315_irq_init(void);
3207 +extern int ar2315_init_devices(void);
3208 +extern void ar2315_prom_init(void);
3209 +extern void ar2315_plat_setup(void);
3210 +extern void ar2315_time_init(void);
3214 +static inline void ar2315_irq_init(void)
3218 +static inline int ar2315_init_devices(void)
3223 +static inline void ar2315_prom_init(void)
3227 +static inline void ar2315_plat_setup(void)
3231 +static inline void ar2315_time_init(void)
3239 +++ b/arch/mips/ar231x/ar5312.h
3244 +#ifdef CONFIG_ATHEROS_AR5312
3246 +extern void ar5312_irq_init(void);
3247 +extern int ar5312_init_devices(void);
3248 +extern void ar5312_prom_init(void);
3249 +extern void ar5312_plat_setup(void);
3250 +extern void ar5312_time_init(void);
3251 +extern void ar5312_time_init(void);
3255 +static inline void ar5312_irq_init(void)
3259 +static inline int ar5312_init_devices(void)
3264 +static inline void ar5312_prom_init(void)
3268 +static inline void ar5312_plat_setup(void)
3272 +static inline void ar5312_time_init(void)
3280 +++ b/arch/mips/include/asm/mach-ar231x/ar231x.h
3285 +#define AR531X_MISC_IRQ_BASE 0x20
3286 +#define AR531X_GPIO_IRQ_BASE 0x30
3288 +/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
3289 +#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0
3290 +#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
3292 +/* Miscellaneous interrupts, which share IP6 */
3293 +#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0
3294 +#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1
3295 +#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2
3296 +#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3
3297 +#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4
3298 +#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5
3299 +#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6
3300 +#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7
3301 +#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8
3302 +#define AR531X_MISC_IRQ_SPI AR531X_MISC_IRQ_BASE+9
3303 +#define AR531X_MISC_IRQ_COUNT 10
3305 +/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
3306 +#define AR531X_GPIO_IRQ_NONE AR531X_GPIO_IRQ_BASE+0
3307 +#define AR531X_GPIO_IRQ(n) AR531X_GPIO_IRQ_BASE+n
3308 +#define AR531X_GPIO_IRQ_COUNT 22
3311 +ar231x_read_reg(u32 reg)
3313 + return __raw_readl((u32 *) reg);
3317 +ar231x_write_reg(u32 reg, u32 val)
3319 + __raw_writel(val, (u32 *)reg);
3323 +ar231x_mask_reg(u32 reg, u32 mask, u32 val)
3327 + ret = ar231x_read_reg(reg);
3330 + ar231x_write_reg(reg, ret);
3337 +++ b/arch/mips/ar231x/devices.h
3339 +#ifndef __AR231X_DEVICES_H
3340 +#define __AR231X_DEVICES_H
3343 + /* handled by ar5312.c */
3348 + /* handled by ar2315.c */
3356 +extern int ar231x_devtype;
3357 +extern struct ar231x_board_config ar231x_board;
3358 +extern void (*ar231x_irq_dispatch)(void);
3360 +extern int ar231x_find_config(u8 *flash_limit);
3361 +extern void ar231x_serial_setup(u32 mapbase, unsigned int uartclk);
3362 +extern int ar231x_add_wmac(int nr, u32 base, int irq);
3363 +extern int ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata);
3367 +++ b/arch/mips/ar231x/devices.c
3369 +#include <linux/kernel.h>
3370 +#include <linux/init.h>
3371 +#include <linux/serial.h>
3372 +#include <linux/serial_core.h>
3373 +#include <linux/serial_8250.h>
3374 +#include <linux/platform_device.h>
3375 +#include <ar231x_platform.h>
3376 +#include <ar231x.h>
3377 +#include "devices.h"
3378 +#include "ar5312.h"
3379 +#include "ar2315.h"
3381 +struct ar231x_board_config ar231x_board;
3382 +int ar231x_devtype = DEV_TYPE_UNKNOWN;
3383 +const struct ar231x_gpiodev *ar231x_gpiodev;
3385 +static struct resource ar231x_eth0_res[] = {
3387 + .name = "eth0_membase",
3388 + .flags = IORESOURCE_MEM,
3391 + .name = "eth0_irq",
3392 + .flags = IORESOURCE_IRQ,
3396 +static struct resource ar231x_eth1_res[] = {
3398 + .name = "eth1_membase",
3399 + .flags = IORESOURCE_MEM,
3402 + .name = "eth1_irq",
3403 + .flags = IORESOURCE_IRQ,
3407 +static struct platform_device ar231x_eth[] = {
3410 + .name = "ar231x-eth",
3411 + .resource = ar231x_eth0_res,
3412 + .num_resources = ARRAY_SIZE(ar231x_eth0_res)
3416 + .name = "ar231x-eth",
3417 + .resource = ar231x_eth1_res,
3418 + .num_resources = ARRAY_SIZE(ar231x_eth1_res)
3422 +static struct resource ar231x_wmac0_res[] = {
3424 + .name = "wmac0_membase",
3425 + .flags = IORESOURCE_MEM,
3428 + .name = "wmac0_irq",
3429 + .flags = IORESOURCE_IRQ,
3433 +static struct resource ar231x_wmac1_res[] = {
3435 + .name = "wmac1_membase",
3436 + .flags = IORESOURCE_MEM,
3439 + .name = "wmac1_irq",
3440 + .flags = IORESOURCE_IRQ,
3445 +static struct platform_device ar231x_wmac[] = {
3448 + .name = "ar231x-wmac",
3449 + .resource = ar231x_wmac0_res,
3450 + .num_resources = ARRAY_SIZE(ar231x_wmac0_res),
3451 + .dev.platform_data = &ar231x_board,
3455 + .name = "ar231x-wmac",
3456 + .resource = ar231x_wmac1_res,
3457 + .num_resources = ARRAY_SIZE(ar231x_wmac1_res),
3458 + .dev.platform_data = &ar231x_board,
3462 +static const char *devtype_strings[] = {
3463 + [DEV_TYPE_AR5312] = "Atheros AR5312",
3464 + [DEV_TYPE_AR2312] = "Atheros AR2312",
3465 + [DEV_TYPE_AR2313] = "Atheros AR2313",
3466 + [DEV_TYPE_AR2315] = "Atheros AR2315",
3467 + [DEV_TYPE_AR2316] = "Atheros AR2316",
3468 + [DEV_TYPE_AR2317] = "Atheros AR2317",
3469 + [DEV_TYPE_UNKNOWN] = "Atheros (unknown)",
3472 +const char *get_system_type(void)
3474 + if ((ar231x_devtype >= ARRAY_SIZE(devtype_strings)) ||
3475 + !devtype_strings[ar231x_devtype])
3476 + return devtype_strings[DEV_TYPE_UNKNOWN];
3477 + return devtype_strings[ar231x_devtype];
3482 +ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata)
3484 + struct resource *res;
3486 + ar231x_eth[nr].dev.platform_data = pdata;
3487 + res = &ar231x_eth[nr].resource[0];
3488 + res->start = base;
3489 + res->end = base + 0x2000 - 1;
3493 + return platform_device_register(&ar231x_eth[nr]);
3497 +ar231x_serial_setup(u32 mapbase, unsigned int uartclk)
3499 + struct uart_port s;
3501 + memset(&s, 0, sizeof(s));
3503 + s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
3504 + s.iotype = UPIO_MEM;
3505 + s.irq = AR531X_MISC_IRQ_UART0;
3507 + s.mapbase = mapbase;
3508 + s.uartclk = uartclk;
3509 + s.membase = (void __iomem *)s.mapbase;
3511 + early_serial_setup(&s);
3515 +ar231x_add_wmac(int nr, u32 base, int irq)
3517 + struct resource *res;
3519 + ar231x_wmac[nr].dev.platform_data = &ar231x_board;
3520 + res = &ar231x_wmac[nr].resource[0];
3521 + res->start = base;
3522 + res->end = base + 0x10000 - 1;
3526 + return platform_device_register(&ar231x_wmac[nr]);
3529 +static int __init ar231x_register_devices(void)
3531 + static struct resource res = {
3532 + .start = 0xFFFFFFFF,
3535 + platform_device_register_simple("GPIODEV", 0, &res, 1);
3536 + ar5312_init_devices();
3537 + ar2315_init_devices();
3542 +device_initcall(ar231x_register_devices);