+++ /dev/null
-/*
- * Cisco WAP4410N board support
- *
- * Copyright (C) 2014 Caleb James DeLisle <cjd@cjdns.fr>
- * Copyright (C) 2015 Ryan A Young <rayoung@utexas.edu>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation, or (at your option) any later version.
- */
-#include <linux/platform_device.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/physmap.h>
-#include <linux/nxp_74hc153.h>
-
-#include <asm/mach-ath79/ath79.h>
-
-#include "dev-eth.h"
-#include "dev-gpio-buttons.h"
-#include "dev-leds-gpio.h"
-#include "dev-usb.h"
-#include "dev-wmac.h"
-#include "machtypes.h"
-
-/* -------------- begin flash device -------------- */
-
-#define FLASH_BASE 0xbf000000
-
-/* where the actual art data is within the art partition. */
-#define ART_DATA_OFFSET 0x1000
-
-/* If changed, make sure to change image/Makefile too! */
-#define KERN_SIZE 0x190000
-
-/* Flash layout: u-boot/include/upgrade.h in cisco's GPL dump */
-#define FLASH_SIZE (0x800000)
-#define BOOT_SIZE (0x40000)
-#define NVRAM_SIZE (0x10000)
-#define ART_SIZE (0x10000)
-/*
- * Note that this is different from upgrade.h, in which ENV_SIZE is 0x10000.
- * This is because the sercomm header is located in the upper end of the root
- * section instead of the env section, and it must not be overwritten by rootfs.
- */
-#define ENV_SIZE (0x20000)
-
-#define NODE_INFO_OFFSET (BOOT_SIZE - 0x90)
-struct wap4410n_node_info {
- /** Serial number written on back of device. */
- char serial_no[16];
-
- /** Internal to Sercomm (?), France = { domain: 0x80, country: 0x00 } */
- uint8_t domain;
- uint8_t country;
-
- /** written on the board, eg: 13 */
- uint8_t hw_ver;
-
- uint8_t zero0[5];
-
- /** ASCII numeric digits */
- char wps_pin[8];
-
- uint8_t zero1[16];
-
- uint8_t mac_addr[6];
-
- uint8_t zero2[3];
-
- /** 31734572436f4d6d -> "1sErCoMm" does not seem to be checked. */
- char magic_1sErCoMm[8];
-
- /** 00010000 (offset 0x41, completely unaligned) */
- uint8_t unknown0[4];
-
- /** Used by upslug2 protocol */
- uint8_t hardware_id[32];
-
- /** 0000240800008000000000030000200400000008 */
- uint8_t unknown1[20];
-
- /** 734572436f4d6d -> "sErCoMm" */
- uint8_t magic_sErCoMm[7];
-
- uint8_t zero3[16];
-};
-
-#define UPGRADE_INFO_OFFSET 0x7dfff0
-struct wap4410n_upgrade_info {
- /** Stock WAP4410: 2408 */
- uint16_t product_id;
-
- /** Always 8000 */
- uint16_t protocol;
-
- /** 2007 -> v2.0.7.x */
- uint16_t fw_version;
-
- /** 90f7 same value as NSLU2 */
- uint16_t unknown0;
-
- /** bootloader checks this and will "soft brick" if it's not correct. */
- uint8_t eRcOmM[6];
-
- uint8_t pad[2];
-};
-
-/*
- * An instruction in the bootloader which checks that 0x7dfff8 == "eRcOmM" and
- * bricks if it's not.
- * If this instruction is overwritten with a zero, you get 64k of extra space.
- * 2406 0006 1440 000a 8fbc 0020 <-- unpatched
- * 2406 0006 0000 0000 8fbc 0020 <-- patched
- */
-#define SERCOMM_CHECK_LAST_INSN 0x24060006
-#define SERCOMM_CHECK_INSN_OFFSET 0x19e08
-#define SERCOMM_CHECK_NEXT_INSN 0x8fbc0020
-
-
-/* Little bit of arithmatic on the flash layout. */
-#define NVRAM_OFFSET BOOT_SIZE
-#define KERN_OFFSET (NVRAM_OFFSET + NVRAM_SIZE)
-#define ROOT_OFFSET (KERN_OFFSET + KERN_SIZE)
-#define ART_OFFSET (FLASH_SIZE - ART_SIZE)
-#define ENV_OFFSET (ART_OFFSET - ENV_SIZE)
-/* rootfs is whatever is left. */
-#define ROOT_SIZE (ENV_OFFSET - ROOT_OFFSET)
-
-#define PART(b, s, n, f) { .name = n, .offset = b, .size = s, .mask_flags = f }
-static struct mtd_partition wap4410n_flash_partitions[] = {
- PART(0x00000000, BOOT_SIZE, "u-boot", MTD_WRITEABLE),
- PART(NVRAM_OFFSET, NVRAM_SIZE, "u-boot-env", MTD_WRITEABLE),
- PART(KERN_OFFSET, KERN_SIZE, "kernel", 0),
- PART(ROOT_OFFSET, ROOT_SIZE, "rootfs", 0),
- PART(ENV_OFFSET, ENV_SIZE, "sercomm", MTD_WRITEABLE),
- PART(ART_OFFSET, ART_SIZE, "art", MTD_WRITEABLE),
-
- /* Pseudo-partition over whole upgradable space, used by sysupgrade. */
- PART(KERN_OFFSET, KERN_SIZE + ROOT_SIZE, "firmware", 0)
-};
-#undef PART
-
-static struct physmap_flash_data wap4410n_flash_data = {
- .width = 2,
- .parts = wap4410n_flash_partitions,
- .nr_parts = ARRAY_SIZE(wap4410n_flash_partitions),
-};
-
-static struct resource wap4410n_flash_resources[] = {
- [0] = {
- .start = FLASH_BASE,
- .end = FLASH_BASE + FLASH_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device wap4410n_flash_device = {
- .name = "physmap-flash",
- .id = -1,
- .resource = wap4410n_flash_resources,
- .num_resources = ARRAY_SIZE(wap4410n_flash_resources),
- .dev = { .platform_data = &wap4410n_flash_data }
-};
-
-
-static void __init wap4410n_flash_reg(void)
-{
- uint32_t *insn = (uint32_t *) (FLASH_BASE + SERCOMM_CHECK_INSN_OFFSET);
- int i;
- if (SERCOMM_CHECK_LAST_INSN != insn[-1] ||
- SERCOMM_CHECK_NEXT_INSN != insn[1]) {
- printk(KERN_INFO "Unrecognized bootloader, costs 64k storage");
- } else if (insn[0]) {
- printk(KERN_INFO "eRcOmM check at %p in uboot, costs 64k storage",
- (void *)insn);
- } else {
- printk(KERN_INFO "eRcOmM check at %p patched, gain 64k storage",
- (void *)insn);
- wap4410n_flash_partitions[3].size +=
- wap4410n_flash_partitions[4].size;
- wap4410n_flash_data.nr_parts--;
- for (i = 4; i < wap4410n_flash_data.nr_parts; i++) {
- memcpy(&wap4410n_flash_partitions[i],
- &wap4410n_flash_partitions[i + 1],
- sizeof(struct mtd_partition));
- }
- }
- platform_device_register(&wap4410n_flash_device);
-}
-
-/* -------------- end flash device -------------- */
-
-
-/* -------------------- GPIO -------------------- */
-
-#define LED_WIRELESS 0
-#define LED_POWER 1
-#define KEYS_POLL_INTERVAL 20 /* msecs */
-#define KEYS_DEBOUNE_INTERVAL (3 * KEYS_POLL_INTERVAL)
-
-/* 2 lights are gpio, other 2 are hardwired. */
-static struct gpio_led wap4410n_leds_gpio[] __initdata = {
- {
- .name = "wrt4410n:green:power",
- .gpio = LED_POWER,
- .active_low = 1,
- },
- {
- .name = "wrt4410n:green:wireless",
- .gpio = LED_WIRELESS,
- .active_low = 1,
- },
-};
-
-static struct gpio_keys_button wap4410n_gpio_keys[] __initdata = {
- {
- .desc = "reset",
- .type = EV_KEY,
- .code = KEY_RESTART,
- .debounce_interval = KEYS_DEBOUNE_INTERVAL,
- .gpio = 21,
- .active_low = 1,
- }
-};
-
-static void __init wap4410n_gpio_reg(void)
-{
- ath79_register_gpio_keys_polled(
- -1,
- KEYS_POLL_INTERVAL,
- ARRAY_SIZE(wap4410n_gpio_keys),
- wap4410n_gpio_keys
- );
- ath79_register_leds_gpio(
- -1,
- ARRAY_SIZE(wap4410n_leds_gpio),
- wap4410n_leds_gpio
- );
-}
-
-/* -------------------- end GPIO -------------------- */
-
-/** Never called, just for build time verification. */
-static void wap4410n_build_verify(void)
-{
- BUILD_BUG_ON((KERN_SIZE / 0x10000 * 0x10000) != KERN_SIZE);
- BUILD_BUG_ON(sizeof(struct wap4410n_upgrade_info) != 16);
- BUILD_BUG_ON(sizeof(struct wap4410n_node_info) != 0x90);
-}
-
-static void __init wap4410n_setup(void)
-{
- struct wap4410n_node_info *ni = (struct wap4410n_node_info *)
- (FLASH_BASE + NODE_INFO_OFFSET);
- uint8_t *art = (uint8_t *)
- (FLASH_BASE + FLASH_SIZE - ART_SIZE + ART_DATA_OFFSET);
-
- ath79_init_mac(ath79_eth0_data.mac_addr, ni->mac_addr, 0);
-
- ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
- /* TODO: SPEED_1000 causes a silent failure, testing needed. */
- ath79_eth0_data.speed = SPEED_100;
- ath79_eth0_data.duplex = DUPLEX_FULL;
- ath79_register_eth(0);
-
- ath79_register_usb();
-
- wap4410n_flash_reg();
-
- ath79_register_wmac(art, ni->mac_addr);
-
- wap4410n_gpio_reg();
-
- /* silence compiler warning */
- if (0)
- wap4410n_build_verify();
-}
-
-MIPS_MACHINE(
- ATH79_MACH_WAP4410N,
- "WAP4410N",
- "Linksys WAP4410N",
- wap4410n_setup
-);
projects / openwrt.git / commitdiff