target/linux/ar71xx/files/arch/mips/ath79/mach-c60.c

   1 /*
   2  *  AirTight Networks C-60 board support
   3  *
   4  *  Copyright (C) 2016 Christian Lamparter <chunkeey@googlemail.com>
   5  *
   6  *  Based on AirTight Networks C-55 board support
   7  *
   8  *  Copyright (C) 2014-2015 Chris Blake <chrisrblake93@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/pci.h>
  16 #include <linux/phy.h>
  17 #include <linux/mtd/mtd.h>
  18 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
  19 #include <linux/mtd/nand.h>
  20 #else
  21 #include <linux/mtd/rawnand.h>
  22 #endif
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/platform/ar934x_nfc.h>
  27 #include <linux/ar8216_platform.h>
  28 #include <linux/ath9k_platform.h>
  29 #include <linux/version.h>
  30
  31 #include <asm/mach-ath79/ar71xx_regs.h>
  32
  33 #include "common.h"
  34 #include "pci.h"
  35 #include "dev-ap9x-pci.h"
  36 #include "dev-eth.h"
  37 #include "dev-gpio-buttons.h"
  38 #include "dev-leds-gpio.h"
  39 #include "dev-m25p80.h"
  40 #include "dev-spi.h"
  41 #include "dev-wmac.h"
  42 #include "dev-usb.h"
  43 #include "dev-nfc.h"
  44 #include "machtypes.h"
  45
  46 #define C60_GPIO_LED_PWR_AMBER          11
  47 #define C60_GPIO_LED_WLAN2_GREEN        12
  48 #define C60_GPIO_LED_WLAN2_AMBER        13
  49 #define C60_GPIO_LED_PWR_GREEN          16
  50
  51 #define C60_GPIO_BTN_RESET              17
  52
  53 /* GPIOs of the AR9300 PCIe chip */
  54 #define C60_GPIO_WMAC_LED_WLAN1_AMBER   0
  55 #define C60_GPIO_WMAC_LED_WLAN1_GREEN   3
  56
  57 #define C60_KEYS_POLL_INTERVAL          20      /* msecs */
  58 #define C60_KEYS_DEBOUNCE_INTERVAL (3 * C60_KEYS_POLL_INTERVAL)
  59
  60 #define C60_ART_ADDR                    0x1f7f0000
  61 #define C60_ART_SIZE                    0xffff
  62 #define C60_MAC_OFFSET                  0
  63 #define C60_WMAC_CALDATA_OFFSET         0x1000
  64 #define C60_PCIE_CALDATA_OFFSET         0x5000
  65
  66 static struct gpio_led c60_leds_gpio[] __initdata = {
  67         {
  68                 .name           = "c-60:amber:pwr",
  69                 .gpio           = C60_GPIO_LED_PWR_AMBER,
  70                 .active_low     = 1,
  71         },
  72         {
  73                 .name           = "c-60:green:pwr",
  74                 .gpio           = C60_GPIO_LED_PWR_GREEN,
  75                 .active_low     = 1,
  76         },
  77         {
  78                 .name           = "c-60:green:wlan2",
  79                 .gpio           = C60_GPIO_LED_WLAN2_GREEN,
  80                 .active_low     = 1,
  81         },
  82         {
  83                 .name           = "c-60:amber:wlan2",
  84                 .gpio           = C60_GPIO_LED_WLAN2_AMBER,
  85                 .active_low     = 1,
  86         },
  87 };
  88
  89 static struct gpio_keys_button c60_gpio_keys[] __initdata = {
  90         {
  91                 .desc           = "Reset button",
  92                 .type           = EV_KEY,
  93                 .code           = KEY_RESTART,
  94                 .debounce_interval = C60_KEYS_DEBOUNCE_INTERVAL,
  95                 .gpio           = C60_GPIO_BTN_RESET,
  96                 .active_low     = 1,
  97         },
  98 };
  99
 100 static struct ar8327_pad_cfg c60_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_platform_data c60_ar8327_data = {
 109         .pad0_cfg = &c60_ar8327_pad0_cfg,
 110         .port0_cfg = {
 111                 .force_link = 1,
 112                 .speed = AR8327_PORT_SPEED_1000,
 113                 .duplex = 1,
 114                 .txpause = 1,
 115                 .rxpause = 1,
 116         }
 117 };
 118
 119 static struct mdio_board_info c60_mdio0_info[] = {
 120         {
 121                 .bus_id = "ag71xx-mdio.0",
 122                 .mdio_addr = 0,
 123                 .platform_data = &c60_ar8327_data,
 124         },
 125 };
 126
 127 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 128 static struct nand_ecclayout c60_nand_ecclayout = {
 129         .eccbytes       = 7,
 130         .eccpos         = { 4, 8, 9, 10, 13, 14, 15 },
 131         .oobavail       = 9,
 132         .oobfree        = { { 0, 3 }, { 6, 2 }, { 11, 2 }, }
 133 };
 134
 135 #else
 136
 137 static int c60_ooblayout_ecc(struct mtd_info *mtd, int section,
 138                              struct mtd_oob_region *oobregion)
 139 {
 140         switch (section) {
 141         case 0:
 142                 oobregion->offset = 4;
 143                 oobregion->length = 1;
 144                 return 0;
 145         case 1:
 146                 oobregion->offset = 8;
 147                 oobregion->length = 3;
 148                 return 0;
 149         case 2:
 150                 oobregion->offset = 13;
 151                 oobregion->length = 3;
 152                 return 0;
 153         default:
 154                 return -ERANGE;
 155         }
 156 }
 157
 158 static int c60_ooblayout_free(struct mtd_info *mtd, int section,
 159                               struct mtd_oob_region *oobregion)
 160 {
 161         switch (section) {
 162         case 0:
 163                 oobregion->offset = 0;
 164                 oobregion->length = 3;
 165                 return 0;
 166         case 1:
 167                 oobregion->offset = 6;
 168                 oobregion->length = 2;
 169                 return 0;
 170         case 2:
 171                 oobregion->offset = 11;
 172                 oobregion->length = 2;
 173                 return 0;
 174         default:
 175                 return -ERANGE;
 176         }
 177 }
 178
 179 static const struct mtd_ooblayout_ops c60_nand_ecclayout_ops = {
 180         .ecc = c60_ooblayout_ecc,
 181         .free = c60_ooblayout_free,
 182 };
 183 #endif /* < 4.6 */
 184
 185 static int c60_nand_scan_fixup(struct mtd_info *mtd)
 186 {
 187 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 188         struct nand_chip *chip = mtd->priv;
 189 #else
 190         struct nand_chip *chip = mtd_to_nand(mtd);
 191 #endif
 192
 193         chip->ecc.size = 512;
 194         chip->ecc.strength = 4;
 195 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 196         chip->ecc.layout = &c60_nand_ecclayout;
 197 #else
 198         mtd_set_ooblayout(mtd, &c60_nand_ecclayout_ops);
 199 #endif
 200         return 0;
 201 }
 202
 203 static struct gpio_led c60_wmac0_leds_gpio[] = {
 204         {
 205                 .name           = "c-60:amber:wlan1",
 206                 .gpio           = C60_GPIO_WMAC_LED_WLAN1_AMBER,
 207                 .active_low     = 1,
 208         },
 209         {
 210                 .name           = "c-60:green:wlan1",
 211                 .gpio           = C60_GPIO_WMAC_LED_WLAN1_GREEN,
 212                 .active_low     = 1,
 213         },
 214 };
 215
 216 static void __init c60_setup(void)
 217 {
 218         u8 tmpmac[6];
 219         u8 *art = (u8 *) KSEG1ADDR(C60_ART_ADDR);
 220
 221         /* NAND */
 222         ath79_nfc_set_ecc_mode(AR934X_NFC_ECC_SOFT_BCH);
 223         ath79_nfc_set_scan_fixup(c60_nand_scan_fixup);
 224         ath79_register_nfc();
 225
 226         /* SPI Storage*/
 227         ath79_register_m25p80(NULL);
 228
 229         /* AR8327 Switch Ethernet */
 230
 231         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
 232
 233         mdiobus_register_board_info(c60_mdio0_info,
 234                                     ARRAY_SIZE(c60_mdio0_info));
 235
 236         ath79_register_mdio(0, 0x0);
 237
 238         /* GMAC0 is connected to an AR8327N switch */
 239         ath79_init_mac(ath79_eth0_data.mac_addr, art + C60_MAC_OFFSET, 0);
 240         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 241         ath79_eth0_data.phy_mask = BIT(0);
 242         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 243         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 244         ath79_register_eth(0);
 245
 246         /* LEDs & GPIO */
 247         ath79_register_leds_gpio(-1, ARRAY_SIZE(c60_leds_gpio),
 248                                  c60_leds_gpio);
 249         ath79_register_gpio_keys_polled(-1, C60_KEYS_POLL_INTERVAL,
 250                                         ARRAY_SIZE(c60_gpio_keys),
 251                                         c60_gpio_keys);
 252         ap9x_pci_setup_wmac_leds(0, c60_wmac0_leds_gpio,
 253                                  ARRAY_SIZE(c60_wmac0_leds_gpio));
 254         /* USB */
 255         ath79_register_usb();
 256
 257         /* WiFi */
 258         ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 1);
 259         ap91_pci_init(art + C60_PCIE_CALDATA_OFFSET, tmpmac);
 260         ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 2);
 261         ath79_register_wmac(art + C60_WMAC_CALDATA_OFFSET, tmpmac);
 262 }
 263 MIPS_MACHINE(ATH79_MACH_C60, "C-60", "AirTight Networks C-60",
 264              c60_setup);