ar71xx: add kernel support for WD My Net N750
[openwrt.git] / target / linux / ar71xx / files / arch / mips / ath79 / mach-mynet-n750.c
1 /*
2  *  WD My Net N750 board support
3  *
4  *  Copyright (C) 2013 Felix Kaechele <felix@fetzig.org>
5  *  Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
6  *
7  *  This program is free software; you can redistribute it and/or modify it
8  *  under the terms of the GNU General Public License version 2 as published
9  *  by the Free Software Foundation.
10  */
11
12 #include <linux/pci.h>
13 #include <linux/phy.h>
14 #include <linux/gpio.h>
15 #include <linux/platform_device.h>
16 #include <linux/ath9k_platform.h>
17 #include <linux/ar8216_platform.h>
18
19 #include <asm/mach-ath79/ar71xx_regs.h>
20
21 #include "common.h"
22 #include "dev-ap9x-pci.h"
23 #include "dev-eth.h"
24 #include "dev-gpio-buttons.h"
25 #include "dev-leds-gpio.h"
26 #include "dev-m25p80.h"
27 #include "dev-spi.h"
28 #include "dev-usb.h"
29 #include "dev-wmac.h"
30 #include "machtypes.h"
31 #include "nvram.h"
32
33
34 /*
35  * Taken from GPL bootloader source:
36  *   board/ar7240/db12x/alpha_gpio.c
37  */
38 #define MYNET_N750_GPIO_LED_WIFI        11
39 #define MYNET_N750_GPIO_LED_INTERNET    12
40 #define MYNET_N750_GPIO_LED_WPS         13
41 #define MYNET_N750_GPIO_LED_POWER       14
42
43 #define MYNET_N750_GPIO_BTN_RESET       17
44 #define MYNET_N750_GPIO_BTN_WPS         19
45
46 #define MYNET_N750_GPIO_EXTERNAL_LNA0   15
47 #define MYNET_N750_GPIO_EXTERNAL_LNA1   18
48
49 #define MYNET_N750_KEYS_POLL_INTERVAL   20      /* msecs */
50 #define MYNET_N750_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_N750_KEYS_POLL_INTERVAL)
51
52 #define MYNET_N750_WMAC_CALDATA_OFFSET  0x1000
53 #define MYNET_N750_PCIE_CALDATA_OFFSET  0x5000
54
55 #define MYNET_N750_NVRAM_ADDR           0x1f058010
56 #define MYNET_N750_NVRAM_SIZE           0x7ff0
57
58 static struct gpio_led mynet_n750_leds_gpio[] __initdata = {
59         {
60                 .name           = "wd:blue:power",
61                 .gpio           = MYNET_N750_GPIO_LED_POWER,
62                 .active_low     = 0,
63         },
64         {
65                 .name           = "wd:blue:wps",
66                 .gpio           = MYNET_N750_GPIO_LED_WPS,
67                 .active_low     = 0,
68         },
69         {
70                 .name           = "wd:blue:wireless",
71                 .gpio           = MYNET_N750_GPIO_LED_WIFI,
72                 .active_low     = 0,
73         },
74         {
75                 .name           = "wd:blue:internet",
76                 .gpio           = MYNET_N750_GPIO_LED_INTERNET,
77                 .active_low     = 0,
78         },
79 };
80
81 static struct gpio_keys_button mynet_n750_gpio_keys[] __initdata = {
82         {
83                 .desc           = "Reset button",
84                 .type           = EV_KEY,
85                 .code           = KEY_RESTART,
86                 .debounce_interval = MYNET_N750_KEYS_DEBOUNCE_INTERVAL,
87                 .gpio           = MYNET_N750_GPIO_BTN_RESET,
88                 .active_low     = 1,
89         },
90         {
91                 .desc           = "WPS button",
92                 .type           = EV_KEY,
93                 .code           = KEY_WPS_BUTTON,
94                 .debounce_interval = MYNET_N750_KEYS_DEBOUNCE_INTERVAL,
95                 .gpio           = MYNET_N750_GPIO_BTN_WPS,
96                 .active_low     = 1,
97         },
98 };
99
100 static struct ar8327_pad_cfg mynet_n750_ar8327_pad0_cfg = {
101         .mode = AR8327_PAD_MAC_RGMII,
102         .txclk_delay_en = true,
103         .rxclk_delay_en = true,
104         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
105         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
106 };
107
108 static struct ar8327_led_cfg mynet_n750_ar8327_led_cfg = {
109         .led_ctrl0 = 0xc737c737,
110         .led_ctrl1 = 0x00000000,
111         .led_ctrl2 = 0x00000000,
112         .led_ctrl3 = 0x0030c300,
113         .open_drain = false,
114 };
115
116 static struct ar8327_platform_data mynet_n750_ar8327_data = {
117         .pad0_cfg = &mynet_n750_ar8327_pad0_cfg,
118         .port0_cfg = {
119                 .force_link = 1,
120                 .speed = AR8327_PORT_SPEED_1000,
121                 .duplex = 1,
122                 .txpause = 1,
123                 .rxpause = 1,
124         },
125         .led_cfg = &mynet_n750_ar8327_led_cfg,
126 };
127
128 static struct mdio_board_info mynet_n750_mdio0_info[] = {
129         {
130                 .bus_id = "ag71xx-mdio.0",
131                 .phy_addr = 0,
132                 .platform_data = &mynet_n750_ar8327_data,
133         },
134 };
135
136 static void mynet_n750_get_mac(const char *name, char *mac)
137 {
138         u8 *nvram = (u8 *) KSEG1ADDR(MYNET_N750_NVRAM_ADDR);
139         int err;
140
141         err = ath79_nvram_parse_mac_addr(nvram, MYNET_N750_NVRAM_SIZE,
142                                          name, mac);
143         if (err)
144                 pr_err("no MAC address found for %s\n", name);
145 }
146
147 static void __init mynet_n750_setup(void)
148 {
149         u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
150         u8 tmpmac[ETH_ALEN];
151
152         ath79_register_m25p80(NULL);
153         ath79_register_leds_gpio(-1, ARRAY_SIZE(mynet_n750_leds_gpio),
154                                  mynet_n750_leds_gpio);
155         ath79_register_gpio_keys_polled(-1, MYNET_N750_KEYS_POLL_INTERVAL,
156                                         ARRAY_SIZE(mynet_n750_gpio_keys),
157                                         mynet_n750_gpio_keys);
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         gpio_request_one(MYNET_N750_GPIO_EXTERNAL_LNA0,
164                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
165                          "External LNA0");
166         gpio_request_one(MYNET_N750_GPIO_EXTERNAL_LNA1,
167                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
168                          "External LNA1");
169
170         mynet_n750_get_mac("wlan24mac=", tmpmac);
171         ath79_register_wmac(art + MYNET_N750_WMAC_CALDATA_OFFSET, tmpmac);
172
173         mynet_n750_get_mac("wlan5mac=", tmpmac);
174         ap91_pci_init(art + MYNET_N750_PCIE_CALDATA_OFFSET, tmpmac);
175
176         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
177
178         mdiobus_register_board_info(mynet_n750_mdio0_info,
179                                     ARRAY_SIZE(mynet_n750_mdio0_info));
180
181         ath79_register_mdio(0, 0x0);
182
183         mynet_n750_get_mac("lanmac=", ath79_eth0_data.mac_addr);
184
185         /* GMAC0 is connected to an AR8327N switch */
186         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
187         ath79_eth0_data.phy_mask = BIT(0);
188         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
189         ath79_eth0_pll_data.pll_1000 = 0x06000000;
190         ath79_register_eth(0);
191
192         ath79_register_usb();
193 }
194
195 MIPS_MACHINE(ATH79_MACH_MYNET_N750, "MYNET-N750", "WD My Net N750",
196              mynet_n750_setup);