target/linux/ar71xx/files/arch/mips/ath79/mach-cf-e316n-v2.c

   1 /*
   2  *  Support for COMFAST boards:
   3  *  - CF-E316N v2 (AR9341)
   4  *  - CF-E320N v2 (QCA9531)
   5  *  - CF-E520N/CF-E530N (QCA9531)
   6  *
   7  *  Copyright (C) 2016 Piotr Dymacz <pepe2k@gmail.com>
   8  *  Copyright (C) 2015 Paul Fertser <fercerpav@gmail.com>
   9  *
  10  *  This program is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License version 2 as published
  12  *  by the Free Software Foundation.
  13  */
  14
  15 #include <linux/gpio.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/timer.h>
  18
  19 #include <asm/mach-ath79/ath79.h>
  20 #include <asm/mach-ath79/ar71xx_regs.h>
  21
  22 #include "common.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-wmac.h"
  28 #include "dev-usb.h"
  29 #include "machtypes.h"
  30
  31 #define CF_EXXXN_KEYS_POLL_INTERVAL     20
  32 #define CF_EXXXN_KEYS_DEBOUNCE_INTERVAL (3 * CF_EXXXN_KEYS_POLL_INTERVAL)
  33
  34 /* CF-E316N v2 */
  35 #define CF_E316N_V2_GPIO_LED_DIAG_B     0
  36 #define CF_E316N_V2_GPIO_LED_DIAG_R     2
  37 #define CF_E316N_V2_GPIO_LED_DIAG_G     3
  38 #define CF_E316N_V2_GPIO_LED_WLAN       12
  39 #define CF_E316N_V2_GPIO_LED_WAN        17
  40 #define CF_E316N_V2_GPIO_LED_LAN        19
  41
  42 #define CF_E316N_V2_GPIO_EXT_WDT        16
  43
  44 #define CF_E316N_V2_GPIO_EXTERNAL_PA0   13
  45 #define CF_E316N_V2_GPIO_EXTERNAL_PA1   14
  46
  47 #define CF_E316N_V2_GPIO_BTN_RESET      20
  48
  49 static struct gpio_led cf_e316n_v2_leds_gpio[] __initdata = {
  50         {
  51                 .name           = "cf-e316n-v2:blue:diag",
  52                 .gpio           = CF_E316N_V2_GPIO_LED_DIAG_B,
  53                 .active_low     = 0,
  54         }, {
  55                 .name           = "cf-e316n-v2:red:diag",
  56                 .gpio           = CF_E316N_V2_GPIO_LED_DIAG_R,
  57                 .active_low     = 0,
  58         }, {
  59                 .name           = "cf-e316n-v2:green:diag",
  60                 .gpio           = CF_E316N_V2_GPIO_LED_DIAG_G,
  61                 .active_low     = 0,
  62         }, {
  63                 .name           = "cf-e316n-v2:blue:wlan",
  64                 .gpio           = CF_E316N_V2_GPIO_LED_WLAN,
  65                 .active_low     = 1,
  66         }, {
  67                 .name           = "cf-e316n-v2:blue:wan",
  68                 .gpio           = CF_E316N_V2_GPIO_LED_WAN,
  69                 .active_low     = 1,
  70         }, {
  71                 .name           = "cf-e316n-v2:blue:lan",
  72                 .gpio           = CF_E316N_V2_GPIO_LED_LAN,
  73                 .active_low     = 1,
  74         },
  75 };
  76
  77 static struct gpio_keys_button cf_e316n_v2_gpio_keys[] __initdata = {
  78         {
  79                 .desc           = "reset",
  80                 .type           = EV_KEY,
  81                 .code           = KEY_RESTART,
  82                 .debounce_interval = CF_EXXXN_KEYS_DEBOUNCE_INTERVAL,
  83                 .gpio           = CF_E316N_V2_GPIO_BTN_RESET,
  84                 .active_low     = 1,
  85         },
  86 };
  87
  88 /* CF-E320N v2 */
  89 #define CF_E320N_V2_GPIO_LED_WLAN       0
  90 #define CF_E320N_V2_GPIO_LED_WAN        2
  91 #define CF_E320N_V2_GPIO_LED_LAN        3
  92
  93 #define CF_E320N_V2_GPIO_HEADER_J9_1    14
  94 #define CF_E320N_V2_GPIO_HEADER_J9_2    12
  95 #define CF_E320N_V2_GPIO_HEADER_J9_3    11
  96 #define CF_E320N_V2_GPIO_HEADER_J9_4    16
  97
  98 #define CF_E320N_V2_GPIO_EXT_WDT        13
  99
 100 #define CF_E320N_V2_GPIO_BTN_RESET      17
 101
 102 static struct gpio_led cf_e320n_v2_leds_gpio[] __initdata = {
 103         {
 104                 .name           = "cf-e320n-v2:green:lan",
 105                 .gpio           = CF_E320N_V2_GPIO_LED_LAN,
 106                 .active_low     = 0,
 107         }, {
 108                 .name           = "cf-e320n-v2:red:wan",
 109                 .gpio           = CF_E320N_V2_GPIO_LED_WAN,
 110                 .active_low     = 0,
 111         }, {
 112                 .name           = "cf-e320n-v2:blue:wlan",
 113                 .gpio           = CF_E320N_V2_GPIO_LED_WLAN,
 114                 .active_low     = 0,
 115         },
 116 };
 117
 118 static struct gpio_keys_button cf_e320n_v2_gpio_keys[] __initdata = {
 119         {
 120                 .desc           = "Reset button",
 121                 .type           = EV_KEY,
 122                 .code           = KEY_RESTART,
 123                 .debounce_interval = CF_EXXXN_KEYS_DEBOUNCE_INTERVAL,
 124                 .gpio           = CF_E320N_V2_GPIO_BTN_RESET,
 125                 .active_low     = 1,
 126         },
 127 };
 128
 129 /* CF-E520N/CF-E530N */
 130 #define CF_E5X0N_GPIO_LED_WAN           11
 131 #define CF_E5X0N_GPIO_BTN_RESET         17
 132
 133 static struct gpio_led cf_e520n_leds_gpio[] __initdata = {
 134         {
 135                 .name           = "cf-e520n:blue:wan",
 136                 .gpio           = CF_E5X0N_GPIO_LED_WAN,
 137                 .active_low     = 1,
 138         }
 139 };
 140
 141 static struct gpio_led cf_e530n_leds_gpio[] __initdata = {
 142         {
 143                 .name           = "cf-e530n:blue:wan",
 144                 .gpio           = CF_E5X0N_GPIO_LED_WAN,
 145                 .active_low     = 1,
 146         }
 147 };
 148
 149 /*
 150  * Some COMFAST devices include external hardware watchdog chip,
 151  * Pericon Technology PT7A7514, connected to a selected GPIO
 152  * and WiSoC RESET_L input. Watchdog time-out is ~1.6 s.
 153  */
 154 #define CF_EXXXN_EXT_WDT_TIMEOUT_MS     500
 155
 156 static struct timer_list gpio_wdt_timer;
 157
 158 static void gpio_wdt_toggle(unsigned long gpio)
 159 {
 160         static int state;
 161
 162         state = !state;
 163         gpio_set_value(gpio, state);
 164
 165         mod_timer(&gpio_wdt_timer,
 166                   jiffies + msecs_to_jiffies(CF_EXXXN_EXT_WDT_TIMEOUT_MS));
 167 }
 168
 169 static void __init cf_exxxn_common_setup(int gpio_wdt)
 170 {
 171         u8 *art = (u8 *) KSEG1ADDR(0x1f011000);
 172
 173         if (gpio_wdt > -1) {
 174                 gpio_request_one(gpio_wdt, GPIOF_OUT_INIT_HIGH,
 175                                  "PT7A7514 watchdog");
 176
 177                 setup_timer(&gpio_wdt_timer, gpio_wdt_toggle, gpio_wdt);
 178                 gpio_wdt_toggle(gpio_wdt);
 179         }
 180
 181         ath79_register_m25p80(NULL);
 182
 183         ath79_register_wmac(art, NULL);
 184
 185         ath79_register_usb();
 186 }
 187
 188 static void __init cf_e316n_v2_setup(void)
 189 {
 190         u8 *mac = (u8 *) KSEG1ADDR(0x1f010000);
 191
 192         cf_exxxn_common_setup(CF_E316N_V2_GPIO_EXT_WDT);
 193
 194         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_PHY_SWAP);
 195
 196         ath79_register_mdio(1, 0x0);
 197
 198         /* GMAC0 is connected to the PHY0 of the internal switch */
 199         ath79_switch_data.phy4_mii_en = 1;
 200         ath79_switch_data.phy_poll_mask = BIT(0);
 201         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 202         ath79_eth0_data.phy_mask = BIT(0);
 203         ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
 204         ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
 205         ath79_register_eth(0);
 206
 207         /* GMAC1 is connected to the internal switch */
 208         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 209         ath79_init_mac(ath79_eth1_data.mac_addr, mac, 2);
 210         ath79_register_eth(1);
 211
 212         /* Enable 2x Skyworks SE2576L WLAN power amplifiers */
 213         gpio_request_one(CF_E316N_V2_GPIO_EXTERNAL_PA0, GPIOF_OUT_INIT_HIGH,
 214                          "WLAN PA0");
 215         gpio_request_one(CF_E316N_V2_GPIO_EXTERNAL_PA1, GPIOF_OUT_INIT_HIGH,
 216                          "WLAN PA1");
 217
 218         ath79_register_leds_gpio(-1, ARRAY_SIZE(cf_e316n_v2_leds_gpio),
 219                                  cf_e316n_v2_leds_gpio);
 220
 221         ath79_register_gpio_keys_polled(1, CF_EXXXN_KEYS_POLL_INTERVAL,
 222                                         ARRAY_SIZE(cf_e316n_v2_gpio_keys),
 223                                         cf_e316n_v2_gpio_keys);
 224 }
 225
 226 MIPS_MACHINE(ATH79_MACH_CF_E316N_V2, "CF-E316N-V2", "COMFAST CF-E316N v2",
 227              cf_e316n_v2_setup);
 228
 229 static void __init cf_exxxn_qca953x_eth_setup(void)
 230 {
 231         u8 *mac = (u8 *) KSEG1ADDR(0x1f010000);
 232
 233         ath79_setup_ar933x_phy4_switch(false, false);
 234
 235         ath79_register_mdio(0, 0x0);
 236
 237         ath79_switch_data.phy4_mii_en = 1;
 238         ath79_switch_data.phy_poll_mask |= BIT(4);
 239
 240         /* LAN */
 241         ath79_eth1_data.duplex = DUPLEX_FULL;
 242         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 243         ath79_eth1_data.speed = SPEED_1000;
 244         ath79_init_mac(ath79_eth1_data.mac_addr, mac, 2);
 245         ath79_register_eth(1);
 246
 247         /* WAN */
 248         ath79_eth0_data.duplex = DUPLEX_FULL;
 249         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 250         ath79_eth0_data.speed = SPEED_100;
 251         ath79_eth0_data.phy_mask = BIT(4);
 252         ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
 253         ath79_register_eth(0);
 254 }
 255
 256 static void __init cf_e320n_v2_setup(void)
 257 {
 258         cf_exxxn_common_setup(CF_E320N_V2_GPIO_EXT_WDT);
 259
 260         cf_exxxn_qca953x_eth_setup();
 261
 262         /* Disable JTAG (enables GPIO0-3) */
 263         ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
 264
 265         ath79_gpio_direction_select(CF_E320N_V2_GPIO_LED_LAN, true);
 266         ath79_gpio_direction_select(CF_E320N_V2_GPIO_LED_WAN, true);
 267         ath79_gpio_direction_select(CF_E320N_V2_GPIO_LED_WLAN, true);
 268
 269         ath79_gpio_output_select(CF_E320N_V2_GPIO_LED_LAN, 0);
 270         ath79_gpio_output_select(CF_E320N_V2_GPIO_LED_WAN, 0);
 271         ath79_gpio_output_select(CF_E320N_V2_GPIO_LED_WLAN, 0);
 272
 273         /* Enable GPIO function for GPIOs in J9 header */
 274         ath79_gpio_output_select(CF_E320N_V2_GPIO_HEADER_J9_1, 0);
 275         ath79_gpio_output_select(CF_E320N_V2_GPIO_HEADER_J9_2, 0);
 276         ath79_gpio_output_select(CF_E320N_V2_GPIO_HEADER_J9_3, 0);
 277         ath79_gpio_output_select(CF_E320N_V2_GPIO_HEADER_J9_4, 0);
 278
 279         ath79_register_leds_gpio(-1, ARRAY_SIZE(cf_e320n_v2_leds_gpio),
 280                                  cf_e320n_v2_leds_gpio);
 281
 282         ath79_register_gpio_keys_polled(-1, CF_EXXXN_KEYS_POLL_INTERVAL,
 283                                         ARRAY_SIZE(cf_e320n_v2_gpio_keys),
 284                                         cf_e320n_v2_gpio_keys);
 285 }
 286
 287 MIPS_MACHINE(ATH79_MACH_CF_E320N_V2, "CF-E320N-V2", "COMFAST CF-E320N v2",
 288              cf_e320n_v2_setup);
 289
 290 static void __init cf_e5x0n_gpio_setup(void)
 291 {
 292         ath79_gpio_direction_select(CF_E5X0N_GPIO_LED_WAN, true);
 293
 294         ath79_gpio_output_select(CF_E5X0N_GPIO_LED_WAN, 0);
 295
 296         ath79_register_gpio_keys_polled(-1, CF_EXXXN_KEYS_POLL_INTERVAL,
 297                                         ARRAY_SIZE(cf_e320n_v2_gpio_keys),
 298                                         cf_e320n_v2_gpio_keys);
 299 }
 300
 301 static void __init cf_e520n_setup(void)
 302 {
 303         cf_exxxn_common_setup(-1);
 304
 305         cf_exxxn_qca953x_eth_setup();
 306
 307         cf_e5x0n_gpio_setup();
 308
 309         ath79_register_leds_gpio(-1, ARRAY_SIZE(cf_e520n_leds_gpio),
 310                                  cf_e520n_leds_gpio);
 311 }
 312
 313 MIPS_MACHINE(ATH79_MACH_CF_E520N, "CF-E520N", "COMFAST CF-E520N",
 314              cf_e520n_setup);
 315
 316 static void __init cf_e530n_setup(void)
 317 {
 318         cf_exxxn_common_setup(-1);
 319
 320         cf_exxxn_qca953x_eth_setup();
 321
 322         cf_e5x0n_gpio_setup();
 323
 324         ath79_register_leds_gpio(-1, ARRAY_SIZE(cf_e530n_leds_gpio),
 325                                  cf_e530n_leds_gpio);
 326 }
 327
 328 MIPS_MACHINE(ATH79_MACH_CF_E530N, "CF-E530N", "COMFAST CF-E530N",
 329              cf_e530n_setup);