1/*
2 *  WD My Net N600 board support
3 *
4 *  Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
5 *
6 *  This program is free software; you can redistribute it and/or modify it
7 *  under the terms of the GNU General Public License version 2 as published
8 *  by the Free Software Foundation.
9 */
10
11#include <linux/pci.h>
12#include <linux/phy.h>
13#include <linux/gpio.h>
14#include <linux/platform_device.h>
15#include <linux/ath9k_platform.h>
16#include <linux/ar8216_platform.h>
17
18#include <asm/mach-ath79/ar71xx_regs.h>
19
20#include "common.h"
21#include "dev-ap9x-pci.h"
22#include "dev-eth.h"
23#include "dev-gpio-buttons.h"
24#include "dev-leds-gpio.h"
25#include "dev-m25p80.h"
26#include "dev-spi.h"
27#include "dev-usb.h"
28#include "dev-wmac.h"
29#include "machtypes.h"
30#include "nvram.h"
31
32#define MYNET_N600_GPIO_LED_WIFI	0
33#define MYNET_N600_GPIO_LED_POWER	11
34#define MYNET_N600_GPIO_LED_INTERNET	12
35#define MYNET_N600_GPIO_LED_WPS		13
36
37#define MYNET_N600_GPIO_LED_LAN1	4
38#define MYNET_N600_GPIO_LED_LAN2	3
39#define MYNET_N600_GPIO_LED_LAN3	2
40#define MYNET_N600_GPIO_LED_LAN4	1
41
42#define MYNET_N600_GPIO_BTN_RESET	16
43#define MYNET_N600_GPIO_BTN_WPS		17
44
45#define MYNET_N600_GPIO_EXTERNAL_LNA0	14
46#define MYNET_N600_GPIO_EXTERNAL_LNA1	15
47
48#define MYNET_N600_KEYS_POLL_INTERVAL	20	/* msecs */
49#define MYNET_N600_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_N600_KEYS_POLL_INTERVAL)
50
51#define MYNET_N600_MAC0_OFFSET		0
52#define MYNET_N600_MAC1_OFFSET		6
53#define MYNET_N600_WMAC_CALDATA_OFFSET	0x1000
54#define MYNET_N600_PCIE_CALDATA_OFFSET	0x5000
55
56#define MYNET_N600_NVRAM_ADDR		0x1f058010
57#define MYNET_N600_NVRAM_SIZE		0x7ff0
58
59static struct gpio_led mynet_n600_leds_gpio[] __initdata = {
60	{
61		.name		= "wd:blue:power",
62		.gpio		= MYNET_N600_GPIO_LED_POWER,
63		.active_low	= 0,
64	},
65	{
66		.name		= "wd:blue:wps",
67		.gpio		= MYNET_N600_GPIO_LED_WPS,
68		.active_low	= 0,
69	},
70	{
71		.name		= "wd:blue:wireless",
72		.gpio		= MYNET_N600_GPIO_LED_WIFI,
73		.active_low	= 0,
74	},
75	{
76		.name		= "wd:blue:internet",
77		.gpio		= MYNET_N600_GPIO_LED_INTERNET,
78		.active_low	= 0,
79	},
80	{
81		.name		= "wd:green:lan1",
82		.gpio		= MYNET_N600_GPIO_LED_LAN1,
83		.active_low	= 1,
84	},
85	{
86		.name		= "wd:green:lan2",
87		.gpio		= MYNET_N600_GPIO_LED_LAN2,
88		.active_low	= 1,
89	},
90	{
91		.name		= "wd:green:lan3",
92		.gpio		= MYNET_N600_GPIO_LED_LAN3,
93		.active_low	= 1,
94	},
95	{
96		.name		= "wd:green:lan4",
97		.gpio		= MYNET_N600_GPIO_LED_LAN4,
98		.active_low	= 1,
99	},
100};
101
102static struct gpio_keys_button mynet_n600_gpio_keys[] __initdata = {
103	{
104		.desc		= "Reset button",
105		.type		= EV_KEY,
106		.code		= KEY_RESTART,
107		.debounce_interval = MYNET_N600_KEYS_DEBOUNCE_INTERVAL,
108		.gpio		= MYNET_N600_GPIO_BTN_RESET,
109		.active_low	= 1,
110	},
111	{
112		.desc		= "WPS button",
113		.type		= EV_KEY,
114		.code		= KEY_WPS_BUTTON,
115		.debounce_interval = MYNET_N600_KEYS_DEBOUNCE_INTERVAL,
116		.gpio		= MYNET_N600_GPIO_BTN_WPS,
117		.active_low	= 1,
118	},
119};
120
121static void mynet_n600_get_mac(const char *name, char *mac)
122{
123	u8 *nvram = (u8 *) KSEG1ADDR(MYNET_N600_NVRAM_ADDR);
124	int err;
125
126	err = ath79_nvram_parse_mac_addr(nvram, MYNET_N600_NVRAM_SIZE,
127					 name, mac);
128	if (err)
129		pr_err("no MAC address found for %s\n", name);
130}
131
132#define MYNET_N600_WAN_PHY_MASK	BIT(0)
133
134static void __init mynet_n600_setup(void)
135{
136	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
137	u8 tmpmac[ETH_ALEN];
138
139	ath79_register_m25p80(NULL);
140
141	ath79_gpio_output_select(MYNET_N600_GPIO_LED_LAN1,
142				 AR934X_GPIO_OUT_GPIO);
143	ath79_gpio_output_select(MYNET_N600_GPIO_LED_LAN2,
144				 AR934X_GPIO_OUT_GPIO);
145	ath79_gpio_output_select(MYNET_N600_GPIO_LED_LAN3,
146				 AR934X_GPIO_OUT_GPIO);
147	ath79_gpio_output_select(MYNET_N600_GPIO_LED_LAN4,
148				 AR934X_GPIO_OUT_GPIO);
149	ath79_gpio_output_select(MYNET_N600_GPIO_LED_INTERNET,
150				 AR934X_GPIO_OUT_GPIO);
151	ath79_register_leds_gpio(-1, ARRAY_SIZE(mynet_n600_leds_gpio),
152				 mynet_n600_leds_gpio);
153
154	ath79_register_gpio_keys_polled(-1, MYNET_N600_KEYS_POLL_INTERVAL,
155					ARRAY_SIZE(mynet_n600_gpio_keys),
156					mynet_n600_gpio_keys);
157
158	/*
159	 * Control signal for external LNAs 0 and 1
160	 * Taken from GPL bootloader source:
161	 *   board/ar7240/db12x/alpha_gpio.c
162	 */
163	ath79_wmac_set_ext_lna_gpio(0, MYNET_N600_GPIO_EXTERNAL_LNA0);
164	ath79_wmac_set_ext_lna_gpio(1, MYNET_N600_GPIO_EXTERNAL_LNA1);
165
166	mynet_n600_get_mac("wlan24mac=", tmpmac);
167	ath79_register_wmac(art + MYNET_N600_WMAC_CALDATA_OFFSET, tmpmac);
168
169	mynet_n600_get_mac("wlan5mac=", tmpmac);
170	ap91_pci_init(art + MYNET_N600_PCIE_CALDATA_OFFSET, tmpmac);
171
172	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE |
173				   AR934X_ETH_CFG_SW_PHY_SWAP);
174
175	ath79_register_mdio(1, 0x0);
176
177	/* LAN */
178	mynet_n600_get_mac("lanmac=", ath79_eth1_data.mac_addr);
179
180	/* GMAC1 is connected to the internal switch */
181	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
182
183	ath79_register_eth(1);
184
185	/* WAN */
186	mynet_n600_get_mac("wanmac=", ath79_eth0_data.mac_addr);
187
188	/* GMAC0 is connected to the PHY4 of the internal switch */
189	ath79_switch_data.phy4_mii_en = 1;
190	ath79_switch_data.phy_poll_mask = MYNET_N600_WAN_PHY_MASK;
191
192	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
193	ath79_eth0_data.phy_mask = MYNET_N600_WAN_PHY_MASK;
194	ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
195
196	ath79_register_eth(0);
197
198	ath79_register_usb();
199}
200
201MIPS_MACHINE(ATH79_MACH_MYNET_N600, "MYNET-N600", "WD My Net N600",
202	     mynet_n600_setup);
203