openwrtv3/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-rext.c
Felix Fietkau 28d8972c25 ar71xx: fix 100/10mbps ethernet link issues on mynet range extender
The mynet range extender hardware is suffering from ethernet
link loss when booting with a recent openwrt image. This only
happens on 100mbps links, with 1Gbps speed the link was fine.

The cause of the problem is that the AR8035 PHY (aka F1E)
requires turning on and off the special TX delay setting
depending on the speed of the link.

The 10mbps mode only needed the proper pll value, which was
extracted from the vendor code.

Reported-by: Pascal Paradis
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

SVN-Revision: 45954
2015-06-14 17:41:01 +00:00

208 lines
5.5 KiB
C

/*
* WD My Net WI-FI Range Extender (Codename:Starfish db12x) board support
*
* Copyright (C) 2013 Christian Lamparter <chunkeey@googlemail.com>
*
* 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.
*/
#include <linux/pci.h>
#include <linux/phy.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/ath9k_platform.h>
#include <linux/ar8216_platform.h>
#include <linux/platform_data/phy-at803x.h>
#include <asm/mach-ath79/ar71xx_regs.h>
#include "common.h"
#include "dev-ap9x-pci.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-spi.h"
#include "dev-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"
#include "nvram.h"
#define MYNET_REXT_GPIO_LED_POWER 11
#define MYNET_REXT_GPIO_LED_ETHERNET 12
#define MYNET_REXT_GPIO_LED_WIFI 19
#define MYNET_REXT_GPIO_LED_RF_QTY1 20
#define MYNET_REXT_GPIO_LED_RF_QTY2 21
#define MYNET_REXT_GPIO_LED_RF_QTY3 22
#define MYNET_REXT_GPIO_BTN_RESET 13
#define MYNET_REXT_GPIO_BTN_WPS 15
#define MYNET_REXT_GPIO_SW_RF 14
#define MYNET_REXT_GPIO_PHY_SWRST 16 /* disables Ethernet PHY */
#define MYNET_REXT_GPIO_PHY_INT 17
#define MYNET_REXT_GPIO_18 18
#define MYNET_REXT_KEYS_POLL_INTERVAL 20 /* msecs */
#define MYNET_REXT_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_REXT_KEYS_POLL_INTERVAL)
#define MYNET_REXT_WMAC_CALDATA_OFFSET 0x1000
#define MYNET_REXT_NVRAM_ADDR 0x1f7e0010
#define MYNET_REXT_NVRAM_SIZE 0xfff0
#define MYNET_REXT_ART_ADDR 0x1f7f0000
static const char *mynet_rext_part_probes[] = {
"cybertan",
NULL,
};
static struct flash_platform_data mynet_rext_flash_data = {
.type = "s25fl064k",
.part_probes = mynet_rext_part_probes,
};
static struct gpio_led mynet_rext_leds_gpio[] __initdata = {
{
.name = "wd:blue:power",
.gpio = MYNET_REXT_GPIO_LED_POWER,
.active_low = 0,
},
{
.name = "wd:blue:wireless",
.gpio = MYNET_REXT_GPIO_LED_WIFI,
.active_low = 1,
},
{
.name = "wd:blue:ethernet",
.gpio = MYNET_REXT_GPIO_LED_ETHERNET,
.active_low = 1,
},
{
.name = "wd:blue:quality1",
.gpio = MYNET_REXT_GPIO_LED_RF_QTY1,
.active_low = 1,
},
{
.name = "wd:blue:quality2",
.gpio = MYNET_REXT_GPIO_LED_RF_QTY2,
.active_low = 1,
},
{
.name = "wd:blue:quality3",
.gpio = MYNET_REXT_GPIO_LED_RF_QTY3,
.active_low = 1,
},
};
static struct gpio_keys_button mynet_rext_gpio_keys[] __initdata = {
{
.desc = "Reset button",
.type = EV_KEY,
.code = KEY_RESTART,
.debounce_interval = MYNET_REXT_KEYS_DEBOUNCE_INTERVAL,
.gpio = MYNET_REXT_GPIO_BTN_RESET,
.active_low = 1,
},
{
.desc = "WPS button",
.type = EV_KEY,
.code = KEY_WPS_BUTTON,
.debounce_interval = MYNET_REXT_KEYS_DEBOUNCE_INTERVAL,
.gpio = MYNET_REXT_GPIO_BTN_WPS,
.active_low = 1,
},
{
.desc = "RF Band switch",
.type = EV_SW,
.code = BTN_1,
.debounce_interval = MYNET_REXT_KEYS_DEBOUNCE_INTERVAL,
.gpio = MYNET_REXT_GPIO_SW_RF,
},
};
static struct at803x_platform_data mynet_rext_at803x_data = {
.disable_smarteee = 0,
.enable_rgmii_rx_delay = 1,
.enable_rgmii_tx_delay = 0,
.fixup_rgmii_tx_delay = 1,
};
static struct mdio_board_info mynet_rext_mdio0_info[] = {
{
.bus_id = "ag71xx-mdio.0",
.phy_addr = 4,
.platform_data = &mynet_rext_at803x_data,
},
};
static void mynet_rext_get_mac(const char *name, char *mac)
{
u8 *nvram = (u8 *) KSEG1ADDR(MYNET_REXT_NVRAM_ADDR);
int err;
err = ath79_nvram_parse_mac_addr(nvram, MYNET_REXT_NVRAM_SIZE,
name, mac);
if (err)
pr_err("no MAC address found for %s\n", name);
}
static void __init mynet_rext_setup(void)
{
u8 *art = (u8 *) KSEG1ADDR(MYNET_REXT_ART_ADDR);
u8 tmpmac[ETH_ALEN];
ath79_register_m25p80(&mynet_rext_flash_data);
/* GPIO configuration from drivers/char/GPIO8.c */
ath79_gpio_output_select(MYNET_REXT_GPIO_LED_POWER,
AR934X_GPIO_OUT_GPIO);
ath79_gpio_output_select(MYNET_REXT_GPIO_LED_WIFI,
AR934X_GPIO_OUT_GPIO);
ath79_gpio_output_select(MYNET_REXT_GPIO_LED_RF_QTY1,
AR934X_GPIO_OUT_GPIO);
ath79_gpio_output_select(MYNET_REXT_GPIO_LED_RF_QTY2,
AR934X_GPIO_OUT_GPIO);
ath79_gpio_output_select(MYNET_REXT_GPIO_LED_RF_QTY3,
AR934X_GPIO_OUT_GPIO);
ath79_gpio_output_select(MYNET_REXT_GPIO_LED_ETHERNET,
AR934X_GPIO_OUT_GPIO);
ath79_register_leds_gpio(-1, ARRAY_SIZE(mynet_rext_leds_gpio),
mynet_rext_leds_gpio);
ath79_register_gpio_keys_polled(-1, MYNET_REXT_KEYS_POLL_INTERVAL,
ARRAY_SIZE(mynet_rext_gpio_keys),
mynet_rext_gpio_keys);
ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
AR934X_ETH_CFG_RXD_DELAY |
AR934X_ETH_CFG_RDV_DELAY);
ath79_register_mdio(0, 0x0);
mdiobus_register_board_info(mynet_rext_mdio0_info,
ARRAY_SIZE(mynet_rext_mdio0_info));
/* LAN */
mynet_rext_get_mac("et0macaddr=", ath79_eth0_data.mac_addr);
/* GMAC0 is connected to an external PHY on Port 4 */
ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
ath79_eth0_data.phy_mask = BIT(4);
ath79_eth0_pll_data.pll_10 = 0x00001313; /* athrs_mac.c */
ath79_eth0_pll_data.pll_1000 = 0x0e000000; /* athrs_mac.c */
ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
ath79_register_eth(0);
/* WLAN */
mynet_rext_get_mac("wl0_hwaddr=", tmpmac);
ap91_pci_init(art + MYNET_REXT_WMAC_CALDATA_OFFSET, tmpmac);
}
MIPS_MACHINE(ATH79_MACH_MYNET_REXT, "MYNET-REXT",
"WD My Net Wi-Fi Range Extender", mynet_rext_setup);