2 * TP-Link TL-WR942N(RU) v1 board support
4 * Copyright (C) 2017 Sergey Studzinski <serguzhg@gmail.com>
5 * Thanks to Henryk Heisig <hyniu@o2.pl>
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.
12 #include <linux/platform_device.h>
13 #include <linux/ath9k_platform.h>
14 #include <asm/mach-ath79/ar71xx_regs.h>
15 #include <linux/gpio.h>
16 #include <linux/init.h>
17 #include <linux/spi/spi_gpio.h>
18 #include <linux/spi/74x164.h>
21 #include "dev-m25p80.h"
22 #include "machtypes.h"
24 #include "dev-gpio-buttons.h"
25 #include "dev-leds-gpio.h"
31 #define TL_WR942N_V1_KEYS_POLL_INTERVAL 20
32 #define TL_WR942N_V1_KEYS_DEBOUNCE_INTERVAL \
33 (3 * TL_WR942N_V1_KEYS_POLL_INTERVAL)
35 #define TL_WR942N_V1_GPIO_BTN_RESET 1
36 #define TL_WR942N_V1_GPIO_BTN_RFKILL 2
38 #define TL_WR942N_V1_GPIO_UART_TX 4
39 #define TL_WR942N_V1_GPIO_UART_RX 5
41 #define TL_WR942N_V1_GPIO_LED_USB2 14
42 #define TL_WR942N_V1_GPIO_LED_USB1 15
44 #define TL_WR942N_V1_GPIO_SHIFT_OE 16
45 #define TL_WR942N_V1_GPIO_SHIFT_SER 17
46 #define TL_WR942N_V1_GPIO_SHIFT_SRCLK 18
47 #define TL_WR942N_V1_GPIO_SHIFT_SRCLR 19
48 #define TL_WR942N_V1_GPIO_SHIFT_RCLK 20
49 #define TL_WR942N_V1_GPIO_LED_WPS 21
50 #define TL_WR942N_V1_GPIO_LED_STATUS 22
52 #define TL_WR942N_V1_74HC_GPIO_BASE QCA956X_GPIO_COUNT
53 #define TL_WR942N_V1_74HC_GPIO_LED_LAN4 23
54 #define TL_WR942N_V1_74HC_GPIO_LED_LAN3 24
55 #define TL_WR942N_V1_74HC_GPIO_LED_LAN2 25
56 #define TL_WR942N_V1_74HC_GPIO_LED_LAN1 26
57 #define TL_WR942N_V1_74HC_GPIO_LED_WAN_GREEN 27
58 #define TL_WR942N_V1_74HC_GPIO_LED_WAN_AMBER 28
59 #define TL_WR942N_V1_74HC_GPIO_LED_WLAN 29
60 #define TL_WR942N_V1_74HC_GPIO_HUB_RESET 30 /* from u-boot sources */
62 #define TL_WR942N_V1_SSR_BIT_0 0
63 #define TL_WR942N_V1_SSR_BIT_1 1
64 #define TL_WR942N_V1_SSR_BIT_2 2
65 #define TL_WR942N_V1_SSR_BIT_3 3
66 #define TL_WR942N_V1_SSR_BIT_4 4
67 #define TL_WR942N_V1_SSR_BIT_5 5
68 #define TL_WR942N_V1_SSR_BIT_6 6
69 #define TL_WR942N_V1_SSR_BIT_7 7
71 #define TL_WR942N_V1_WMAC_CALDATA_OFFSET 0x1000
72 #define TL_WR942N_V1_DEFAULT_MAC_ADDR 0x1fe40008
73 #define TL_WR942N_V1_DEFAULT_MAC_SIZE 0x200
75 #define GPIO_IN_ENABLE0_UART_SIN_LSB 8
76 #define GPIO_IN_ENABLE0_UART_SIN_MASK 0x0000ff00
78 static struct gpio_led tl_wr942n_v1_leds_gpio
[] __initdata
= {
80 .name
= "tl-wr942n-v1:green:status",
81 .gpio
= TL_WR942N_V1_GPIO_LED_STATUS
,
84 .name
= "tl-wr942n-v1:green:wlan",
85 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_WLAN
,
88 .name
= "tl-wr942n-v1:green:lan1",
89 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_LAN1
,
92 .name
= "tl-wr942n-v1:green:lan2",
93 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_LAN2
,
96 .name
= "tl-wr942n-v1:green:lan3",
97 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_LAN3
,
100 .name
= "tl-wr942n-v1:green:lan4",
101 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_LAN4
,
104 .name
= "tl-wr942n-v1:green:wan",
105 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_WAN_GREEN
,
108 .name
= "tl-wr942n-v1:amber:wan",
109 .gpio
= TL_WR942N_V1_74HC_GPIO_LED_WAN_AMBER
,
112 .name
= "tl-wr942n-v1:green:wps",
113 .gpio
= TL_WR942N_V1_GPIO_LED_WPS
,
116 .name
= "tl-wr942n-v1:green:usb1",
117 .gpio
= TL_WR942N_V1_GPIO_LED_USB1
,
120 .name
= "tl-wr942n-v1:green:usb2",
121 .gpio
= TL_WR942N_V1_GPIO_LED_USB2
,
126 static struct gpio_keys_button tl_wr942n_v1_gpio_keys
[] __initdata
= {
128 .desc
= "Reset button",
131 .debounce_interval
= TL_WR942N_V1_KEYS_DEBOUNCE_INTERVAL
,
132 .gpio
= TL_WR942N_V1_GPIO_BTN_RESET
,
135 .desc
= "RFKILL button",
138 .debounce_interval
= TL_WR942N_V1_KEYS_DEBOUNCE_INTERVAL
,
139 .gpio
= TL_WR942N_V1_GPIO_BTN_RFKILL
,
144 static struct spi_gpio_platform_data tl_wr942n_v1_spi_data
= {
145 .sck
= TL_WR942N_V1_GPIO_SHIFT_SRCLK
,
146 .miso
= SPI_GPIO_NO_MISO
,
147 .mosi
= TL_WR942N_V1_GPIO_SHIFT_SER
,
151 static u8 tl_wr942n_v1_ssr_initdata
[] __initdata
= {
152 BIT(TL_WR942N_V1_SSR_BIT_7
) |
153 BIT(TL_WR942N_V1_SSR_BIT_6
) |
154 BIT(TL_WR942N_V1_SSR_BIT_5
) |
155 BIT(TL_WR942N_V1_SSR_BIT_4
) |
156 BIT(TL_WR942N_V1_SSR_BIT_3
) |
157 BIT(TL_WR942N_V1_SSR_BIT_2
) |
158 BIT(TL_WR942N_V1_SSR_BIT_1
) |
159 BIT(TL_WR942N_V1_SSR_BIT_0
)
162 static struct gen_74x164_chip_platform_data tl_wr942n_v1_ssr_data
= {
163 .base
= TL_WR942N_V1_74HC_GPIO_BASE
,
164 .num_registers
= ARRAY_SIZE(tl_wr942n_v1_ssr_initdata
),
165 .init_data
= tl_wr942n_v1_ssr_initdata
,
168 static struct platform_device tl_wr942n_v1_spi_device
= {
172 .platform_data
= &tl_wr942n_v1_spi_data
,
176 static struct spi_board_info tl_wr942n_v1_spi_info
[] = {
180 .max_speed_hz
= 10000000,
181 .modalias
= "74x164",
182 .platform_data
= &tl_wr942n_v1_ssr_data
,
183 .controller_data
= (void *) TL_WR942N_V1_GPIO_SHIFT_RCLK
,
187 static void tl_wr942n_v1_get_mac(const char *name
, char *mac
)
189 u8
*nvram
= (u8
*) KSEG1ADDR(TL_WR942N_V1_DEFAULT_MAC_ADDR
);
192 err
= ath79_nvram_parse_mac_addr(nvram
, TL_WR942N_V1_DEFAULT_MAC_SIZE
,
196 pr_err("no MAC address found for %s\n", name
);
199 static void __init
tl_wr942n_v1_setup(void)
201 u8
*art
= (u8
*) KSEG1ADDR(0x1fff0000);
206 ath79_register_m25p80(NULL
);
208 spi_register_board_info(tl_wr942n_v1_spi_info
,
209 ARRAY_SIZE(tl_wr942n_v1_spi_info
));
210 platform_device_register(&tl_wr942n_v1_spi_device
);
212 /* Check inherited UART RX GPIO definition */
213 base
= ioremap(AR71XX_GPIO_BASE
, AR71XX_GPIO_SIZE
);
215 t
= __raw_readl(base
+ QCA956X_GPIO_REG_IN_ENABLE0
);
216 if (((t
& GPIO_IN_ENABLE0_UART_SIN_MASK
)
217 >> GPIO_IN_ENABLE0_UART_SIN_LSB
) == TL_WR942N_V1_GPIO_LED_USB1
) {
218 pr_warn("Active UART detected on USBLED's GPIOs!\n");
220 tl_wr942n_v1_leds_gpio
[9].gpio
= TL_WR942N_V1_GPIO_UART_TX
;
221 tl_wr942n_v1_leds_gpio
[10].gpio
= TL_WR942N_V1_GPIO_UART_RX
;
224 ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr942n_v1_leds_gpio
),
225 tl_wr942n_v1_leds_gpio
);
227 ath79_register_gpio_keys_polled(-1, TL_WR942N_V1_KEYS_POLL_INTERVAL
,
228 ARRAY_SIZE(tl_wr942n_v1_gpio_keys
),
229 tl_wr942n_v1_gpio_keys
);
231 tl_wr942n_v1_get_mac("MAC:", tmpmac
);
234 ath79_setup_qca956x_eth_cfg(QCA956X_ETH_CFG_SW_PHY_SWAP
|
235 QCA956X_ETH_CFG_SW_PHY_ADDR_SWAP
);
237 ath79_register_mdio(0, 0x0);
238 ath79_register_mdio(1, 0x0);
241 ath79_init_mac(ath79_eth0_data
.mac_addr
, tmpmac
, 1);
242 ath79_eth0_data
.phy_if_mode
= PHY_INTERFACE_MODE_MII
;
243 ath79_eth0_data
.speed
= SPEED_100
;
244 ath79_eth0_data
.duplex
= DUPLEX_FULL
;
247 ath79_eth0_data
.phy_mask
= BIT(0);
248 ath79_register_eth(0);
251 ath79_eth1_data
.phy_if_mode
= PHY_INTERFACE_MODE_GMII
;
252 ath79_init_mac(ath79_eth1_data
.mac_addr
, tmpmac
, 0);
253 ath79_eth1_data
.speed
= SPEED_1000
;
254 ath79_eth1_data
.duplex
= DUPLEX_FULL
;
257 ath79_switch_data
.phy_poll_mask
|= BIT(0);
258 ath79_switch_data
.phy4_mii_en
= 1;
259 ath79_register_eth(1);
261 ath79_register_wmac(art
+ TL_WR942N_V1_WMAC_CALDATA_OFFSET
, tmpmac
);
263 ath79_register_usb();
265 gpio_request_one(TL_WR942N_V1_74HC_GPIO_HUB_RESET
,
266 GPIOF_OUT_INIT_HIGH
| GPIOF_EXPORT_DIR_FIXED
,
269 gpio_request_one(TL_WR942N_V1_GPIO_SHIFT_OE
,
270 GPIOF_OUT_INIT_LOW
| GPIOF_EXPORT_DIR_FIXED
,
273 gpio_request_one(TL_WR942N_V1_GPIO_SHIFT_SRCLR
,
274 GPIOF_OUT_INIT_HIGH
| GPIOF_EXPORT_DIR_FIXED
,
278 MIPS_MACHINE(ATH79_MACH_TL_WR942N_V1
, "TL-WR942N-V1", "TP-LINK TL-WR942N v1",