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ba2d1ccffa
This patch provides full GPIO support for WNR2200 (LEDs and buttons). It exposes all LEDs to operating system, including Ethernet ones. Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl> SVN-Revision: 49101
247 lines
7.6 KiB
C
247 lines
7.6 KiB
C
/*
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* NETGEAR WNR2200 board support
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*
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* Copyright (C) 2013 Aidan Kissane <aidankissane at googlemail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/gpio.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/kernel.h> /* for max() macro */
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#include <asm/mach-ath79/ath79.h>
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#include <asm/mach-ath79/ar71xx_regs.h> /* needed to disable switch LEDs */
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#include "common.h" /* needed to disable switch LEDs */
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#include "dev-ap9x-pci.h"
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#include "dev-eth.h"
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#include "dev-gpio-buttons.h"
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#include "dev-leds-gpio.h"
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#include "dev-m25p80.h"
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#include "dev-usb.h"
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#include "machtypes.h"
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/* WNR2200 - connected through AR7241 */
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#define WNR2200_GPIO_LED_LAN2_AMBER 0
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#define WNR2200_GPIO_LED_LAN4_AMBER 1
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#define WNR2200_GPIO_LED_LAN1_AMBER 6 /* AR724X_GPIO_FUNC_JTAG_DISABLE */
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#define WNR2200_GPIO_LED_WPS_GREEN 7 /* AR724X_GPIO_FUNC_JTAG_DISABLE */
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#define WNR2200_GPIO_LED_USB_GREEN 8 /* AR724X_GPIO_FUNC_JTAG_DISABLE */
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#define WNR2200_GPIO_LED_LAN3_AMBER 11
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#define WNR2200_GPIO_LED_WAN_AMBER 12
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#define WNR2200_GPIO_LED_LAN1_GREEN 13 /* AR724X_..._ETH_SWITCH_LED0 */
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#define WNR2200_GPIO_LED_LAN2_GREEN 14 /* AR724X_..._ETH_SWITCH_LED1 */
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#define WNR2200_GPIO_LED_LAN3_GREEN 15 /* AR724X_..._ETH_SWITCH_LED2 */
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#define WNR2200_GPIO_LED_LAN4_GREEN 16 /* AR724X_..._ETH_SWITCH_LED3 */
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#define WNR2200_GPIO_LED_WAN_GREEN 17 /* AR724X_..._ETH_SWITCH_LED4 */
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/* WNR2200 - connected through AR9287 */
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#define WNR2200_GPIO_WMAC_LED_WLAN_BLUE 0
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#define WNR2200_GPIO_WMAC_LED_TEST_AMBER 1
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#define WNR2200_GPIO_WMAC_LED_POWER_GREEN 2
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#define WNR2200_GPIO_WMAC_BTN_RFKILL 3
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#define WNR2200_GPIO_WMAC_USB_5V 4
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#define WNR2200_GPIO_WMAC_BTN_WPS 5
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#define WNR2200_GPIO_WMAC_BTN_RESET 6
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#define WNR2200_KEYS_POLL_INTERVAL 20 /* msecs */
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#define WNR2200_KEYS_DEBOUNCE_INTERVAL (3 * WNR2200_KEYS_POLL_INTERVAL)
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#define WNR2200_MAC0_OFFSET 0
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#define WNR2200_MAC1_OFFSET 6
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#define WNR2200_PCIE_CALDATA_OFFSET 0x1000
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#define WNR2200_WMAC_OFFSET 0x108c /* wireless MAC is inside ART */
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static struct gpio_led wnr2200_leds_gpio[] __initdata = {
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{
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.name = "netgear:amber:lan1",
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.gpio = WNR2200_GPIO_LED_LAN1_AMBER,
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.active_low = 1,
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}, {
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.name = "netgear:amber:lan2",
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.gpio = WNR2200_GPIO_LED_LAN2_AMBER,
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.active_low = 1,
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}, {
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.name = "netgear:amber:lan3",
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.gpio = WNR2200_GPIO_LED_LAN3_AMBER,
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.active_low = 1,
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}, {
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.name = "netgear:amber:lan4",
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.gpio = WNR2200_GPIO_LED_LAN4_AMBER,
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.active_low = 1,
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}, {
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.name = "netgear:amber:wan",
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.gpio = WNR2200_GPIO_LED_WAN_AMBER,
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.active_low = 1,
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}, {
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.name = "netgear:green:lan1",
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.gpio = WNR2200_GPIO_LED_LAN1_GREEN,
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.active_low = 1,
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}, {
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.name = "netgear:green:lan2",
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.gpio = WNR2200_GPIO_LED_LAN2_GREEN,
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.active_low = 1,
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}, {
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.name = "netgear:green:lan3",
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.gpio = WNR2200_GPIO_LED_LAN3_GREEN,
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.active_low = 1,
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}, {
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.name = "netgear:green:lan4",
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.gpio = WNR2200_GPIO_LED_LAN4_GREEN,
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.active_low = 1,
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}, {
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.name = "netgear:green:usb",
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.gpio = WNR2200_GPIO_LED_USB_GREEN,
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.active_low = 1,
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}, {
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.name = "netgear:green:wan",
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.gpio = WNR2200_GPIO_LED_WAN_GREEN,
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.active_low = 1,
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}, {
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.name = "netgear:green:wps",
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.gpio = WNR2200_GPIO_LED_WPS_GREEN,
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.active_low = 1,
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}
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};
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static const char *wnr2200_wmac_led_name = "netgear:blue:wlan";
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static struct gpio_led wnr2200_wmac_leds_gpio[] = {
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{
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.name = "netgear:amber:test",
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.gpio = WNR2200_GPIO_WMAC_LED_TEST_AMBER,
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.active_low = 1,
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}, {
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.name = "netgear:green:power",
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.gpio = WNR2200_GPIO_WMAC_LED_POWER_GREEN,
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.active_low = 1,
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.default_state = LEDS_GPIO_DEFSTATE_ON,
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}
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};
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static struct gpio_keys_button wnr2200_wmac_keys_gpio[] = {
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{
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.desc = "reset",
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.type = EV_KEY,
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.code = KEY_RESTART,
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.debounce_interval = WNR2200_KEYS_DEBOUNCE_INTERVAL,
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.gpio = WNR2200_GPIO_WMAC_BTN_RESET,
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.active_low = 1,
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}, {
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.desc = "rfkill",
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.type = EV_KEY,
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.code = KEY_RFKILL,
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.debounce_interval = WNR2200_KEYS_DEBOUNCE_INTERVAL,
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.gpio = WNR2200_GPIO_WMAC_BTN_RFKILL,
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.active_low = 1,
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}, {
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.desc = "wps",
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.type = EV_KEY,
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.code = KEY_WPS_BUTTON,
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.debounce_interval = WNR2200_KEYS_DEBOUNCE_INTERVAL,
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.gpio = WNR2200_GPIO_WMAC_BTN_WPS,
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.active_low = 1,
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}
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};
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/*
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* For WNR2200 ART flash area used for WLAN MAC is usually empty (0xff)
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* so ath9k driver uses random MAC instead each time module is loaded.
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* OpenWrt's original fix was to copy eth1 address to WLAN interface.
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* New solution does not duplicate hardware addresses and is taken from
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* WNR2000v3 code. It assigns permanent WLAN MAC equal to ethN's MAC
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* plus 1, so network interfaces get sequential addresses.
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* If ART wireless MAC address field has been filled by user, use it.
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*/
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static void __init wnr2200_get_wmac(u8 *wmac_gen_addr, int mac0_art_offset,
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int mac1_art_offset, int wmac_art_offset)
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{
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u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
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u8 *eth0_mac_addr = (u8 *) (art + mac0_art_offset);
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u8 *eth1_mac_addr = (u8 *) (art + mac1_art_offset);
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u8 *wlan_mac_addr = (u8 *) (art + wmac_art_offset);
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/* only 0xff if all bits are set - address is invalid, empty area */
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if ((wlan_mac_addr[0] & wlan_mac_addr[1] & wlan_mac_addr[2] &
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wlan_mac_addr[3] & wlan_mac_addr[4] & wlan_mac_addr[5]) == 0xff) {
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memcpy(wmac_gen_addr, eth0_mac_addr, 5);
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wmac_gen_addr[5] = max(eth0_mac_addr[5], eth1_mac_addr[5]) + 1;
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/* Avoid potential conflict in case max(0xff,0x00)+1==0x00 */
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if (!wmac_gen_addr[5])
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wmac_gen_addr[5] = 1;
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} else
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memcpy(wmac_gen_addr, wlan_mac_addr, 6);
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}
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static void __init wnr2200_setup(void)
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{
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u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
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u8 wlan_mac_addr[6];
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/*
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* Disable JTAG to use all AR724X GPIO LEDs. Disable CLKs.
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* Allow OS to control all link LEDs.
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*/
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ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE |
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AR724X_GPIO_FUNC_UART_EN,
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AR724X_GPIO_FUNC_CLK_OBS1_EN |
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AR724X_GPIO_FUNC_CLK_OBS2_EN |
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AR724X_GPIO_FUNC_CLK_OBS3_EN |
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AR724X_GPIO_FUNC_CLK_OBS4_EN |
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AR724X_GPIO_FUNC_CLK_OBS5_EN |
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AR724X_GPIO_FUNC_GE0_MII_CLK_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
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ath79_register_mdio(0, 0x0);
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ath79_init_mac(ath79_eth0_data.mac_addr, art + WNR2200_MAC0_OFFSET, 0);
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ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
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ath79_eth0_data.speed = SPEED_100;
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ath79_eth0_data.duplex = DUPLEX_FULL;
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ath79_init_mac(ath79_eth1_data.mac_addr, art + WNR2200_MAC1_OFFSET, 0);
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ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
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ath79_eth1_data.phy_mask = 0x10;
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ath79_register_eth(0);
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ath79_register_eth(1);
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ath79_register_m25p80(NULL);
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wnr2200_get_wmac(wlan_mac_addr, WNR2200_MAC0_OFFSET,
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WNR2200_MAC1_OFFSET, WNR2200_WMAC_OFFSET);
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ap91_pci_init(art + WNR2200_PCIE_CALDATA_OFFSET, wlan_mac_addr);
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ath79_register_leds_gpio(-1, ARRAY_SIZE(wnr2200_leds_gpio),
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wnr2200_leds_gpio);
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ap9x_pci_setup_wmac_led_pin(0, WNR2200_GPIO_WMAC_LED_WLAN_BLUE);
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ap9x_pci_setup_wmac_led_name(0, wnr2200_wmac_led_name);
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ap9x_pci_setup_wmac_leds(0, wnr2200_wmac_leds_gpio,
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ARRAY_SIZE(wnr2200_wmac_leds_gpio));
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/* All 3 buttons are connected to wireless chip */
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ap9x_pci_setup_wmac_btns(0, wnr2200_wmac_keys_gpio,
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ARRAY_SIZE(wnr2200_wmac_keys_gpio),
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WNR2200_KEYS_POLL_INTERVAL);
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/* enable power for the USB port */
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ap9x_pci_setup_wmac_gpio(0, BIT(WNR2200_GPIO_WMAC_USB_5V),
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BIT(WNR2200_GPIO_WMAC_USB_5V));
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ath79_register_usb();
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}
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MIPS_MACHINE(ATH79_MACH_WNR2200, "WNR2200", "NETGEAR WNR2200", wnr2200_setup);
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