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 #include <linux/mtd/nand.h>
  19 #include <linux/mtd/partitions.h>
  20 #include <linux/mtd/physmap.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/platform/ar934x_nfc.h>
  23 #include <linux/ar8216_platform.h>
  24 #include <linux/ath9k_platform.h>
  25 #include <linux/version.h>
  26
  27 #include <asm/mach-ath79/ar71xx_regs.h>
  28
  29 #include "common.h"
  30 #include "pci.h"
  31 #include "dev-ap9x-pci.h"
  32 #include "dev-eth.h"
  33 #include "dev-gpio-buttons.h"
  34 #include "dev-leds-gpio.h"
  35 #include "dev-m25p80.h"
  36 #include "dev-spi.h"
  37 #include "dev-wmac.h"
  38 #include "dev-usb.h"
  39 #include "dev-nfc.h"
  40 #include "machtypes.h"
  41
  42 #define C60_GPIO_LED_PWR_AMBER          11
  43 #define C60_GPIO_LED_WLAN2_GREEN        12
  44 #define C60_GPIO_LED_WLAN2_AMBER        13
  45 #define C60_GPIO_LED_PWR_GREEN          16
  46
  47 #define C60_GPIO_BTN_RESET              17
  48
  49 /* GPIOs of the AR9300 PCIe chip */
  50 #define C60_GPIO_WMAC_LED_WLAN1_AMBER   0
  51 #define C60_GPIO_WMAC_LED_WLAN1_GREEN   3
  52
  53 #define C60_KEYS_POLL_INTERVAL          20      /* msecs */
  54 #define C60_KEYS_DEBOUNCE_INTERVAL (3 * C60_KEYS_POLL_INTERVAL)
  55
  56 #define C60_ART_ADDR                    0x1f7f0000
  57 #define C60_ART_SIZE                    0xffff
  58 #define C60_MAC_OFFSET                  0
  59 #define C60_WMAC_CALDATA_OFFSET         0x1000
  60 #define C60_PCIE_CALDATA_OFFSET         0x5000
  61
  62 static struct gpio_led c60_leds_gpio[] __initdata = {
  63         {
  64                 .name           = "c-60:amber:pwr",
  65                 .gpio           = C60_GPIO_LED_PWR_AMBER,
  66                 .active_low     = 1,
  67         },
  68         {
  69                 .name           = "c-60:green:pwr",
  70                 .gpio           = C60_GPIO_LED_PWR_GREEN,
  71                 .active_low     = 1,
  72         },
  73         {
  74                 .name           = "c-60:green:wlan2",
  75                 .gpio           = C60_GPIO_LED_WLAN2_GREEN,
  76                 .active_low     = 1,
  77         },
  78         {
  79                 .name           = "c-60:amber:wlan2",
  80                 .gpio           = C60_GPIO_LED_WLAN2_AMBER,
  81                 .active_low     = 1,
  82         },
  83 };
  84
  85 static struct gpio_keys_button c60_gpio_keys[] __initdata = {
  86         {
  87                 .desc           = "Reset button",
  88                 .type           = EV_KEY,
  89                 .code           = KEY_RESTART,
  90                 .debounce_interval = C60_KEYS_DEBOUNCE_INTERVAL,
  91                 .gpio           = C60_GPIO_BTN_RESET,
  92                 .active_low     = 1,
  93         },
  94 };
  95
  96 static struct ar8327_pad_cfg c60_ar8327_pad0_cfg = {
  97         .mode = AR8327_PAD_MAC_RGMII,
  98         .txclk_delay_en = true,
  99         .rxclk_delay_en = true,
 100         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
 101         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 102 };
 103
 104 static struct ar8327_platform_data c60_ar8327_data = {
 105         .pad0_cfg = &c60_ar8327_pad0_cfg,
 106         .port0_cfg = {
 107                 .force_link = 1,
 108                 .speed = AR8327_PORT_SPEED_1000,
 109                 .duplex = 1,
 110                 .txpause = 1,
 111                 .rxpause = 1,
 112         }
 113 };
 114
 115 static struct mdio_board_info c60_mdio0_info[] = {
 116         {
 117                 .bus_id = "ag71xx-mdio.0",
 118                 .phy_addr = 0,
 119                 .platform_data = &c60_ar8327_data,
 120         },
 121 };
 122
 123 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 124 static struct nand_ecclayout c60_nand_ecclayout = {
 125         .eccbytes       = 7,
 126         .eccpos         = { 4, 8, 9, 10, 13, 14, 15 },
 127         .oobavail       = 9,
 128         .oobfree        = { { 0, 3 }, { 6, 2 }, { 11, 2 }, }
 129 };
 130
 131 #else
 132
 133 static int c60_ooblayout_ecc(struct mtd_info *mtd, int section,
 134                              struct mtd_oob_region *oobregion)
 135 {
 136         switch (section) {
 137         case 0:
 138                 oobregion->offset = 4;
 139                 oobregion->length = 1;
 140                 return 0;
 141         case 1:
 142                 oobregion->offset = 8;
 143                 oobregion->length = 3;
 144                 return 0;
 145         case 2:
 146                 oobregion->offset = 13;
 147                 oobregion->length = 3;
 148                 return 0;
 149         default:
 150                 return -ERANGE;
 151         }
 152 }
 153
 154 static int c60_ooblayout_free(struct mtd_info *mtd, int section,
 155                               struct mtd_oob_region *oobregion)
 156 {
 157         switch (section) {
 158         case 0:
 159                 oobregion->offset = 0;
 160                 oobregion->length = 3;
 161                 return 0;
 162         case 1:
 163                 oobregion->offset = 6;
 164                 oobregion->length = 2;
 165                 return 0;
 166         case 2:
 167                 oobregion->offset = 11;
 168                 oobregion->length = 2;
 169                 return 0;
 170         default:
 171                 return -ERANGE;
 172         }
 173 }
 174
 175 static const struct mtd_ooblayout_ops c60_nand_ecclayout_ops = {
 176         .ecc = c60_ooblayout_ecc,
 177         .free = c60_ooblayout_free,
 178 };
 179 #endif /* < 4.6 */
 180
 181 static int c60_nand_scan_fixup(struct mtd_info *mtd)
 182 {
 183 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 184         struct nand_chip *chip = mtd->priv;
 185 #else
 186         struct nand_chip *chip = mtd_to_nand(mtd);
 187 #endif
 188
 189         chip->ecc.size = 512;
 190         chip->ecc.strength = 4;
 191 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 192         chip->ecc.layout = &c60_nand_ecclayout;
 193 #else
 194         mtd_set_ooblayout(mtd, &c60_nand_ecclayout_ops);
 195 #endif
 196         return 0;
 197 }
 198
 199 static struct gpio_led c60_wmac0_leds_gpio[] = {
 200         {
 201                 .name           = "c-60:amber:wlan1",
 202                 .gpio           = C60_GPIO_WMAC_LED_WLAN1_AMBER,
 203                 .active_low     = 1,
 204         },
 205         {
 206                 .name           = "c-60:green:wlan1",
 207                 .gpio           = C60_GPIO_WMAC_LED_WLAN1_GREEN,
 208                 .active_low     = 1,
 209         },
 210 };
 211
 212 static void __init c60_setup(void)
 213 {
 214         u8 tmpmac[6];
 215         u8 *art = (u8 *) KSEG1ADDR(C60_ART_ADDR);
 216
 217         /* NAND */
 218         ath79_nfc_set_ecc_mode(AR934X_NFC_ECC_SOFT_BCH);
 219         ath79_nfc_set_scan_fixup(c60_nand_scan_fixup);
 220         ath79_register_nfc();
 221
 222         /* SPI Storage*/
 223         ath79_register_m25p80(NULL);
 224
 225         /* AR8327 Switch Ethernet */
 226
 227         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
 228
 229         mdiobus_register_board_info(c60_mdio0_info,
 230                                     ARRAY_SIZE(c60_mdio0_info));
 231
 232         ath79_register_mdio(0, 0x0);
 233
 234         /* GMAC0 is connected to an AR8327N switch */
 235         ath79_init_mac(ath79_eth0_data.mac_addr, art + C60_MAC_OFFSET, 0);
 236         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 237         ath79_eth0_data.phy_mask = BIT(0);
 238         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 239         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 240         ath79_register_eth(0);
 241
 242         /* LEDs & GPIO */
 243         ath79_register_leds_gpio(-1, ARRAY_SIZE(c60_leds_gpio),
 244                                  c60_leds_gpio);
 245         ath79_register_gpio_keys_polled(-1, C60_KEYS_POLL_INTERVAL,
 246                                         ARRAY_SIZE(c60_gpio_keys),
 247                                         c60_gpio_keys);
 248         ap9x_pci_setup_wmac_leds(0, c60_wmac0_leds_gpio,
 249                                  ARRAY_SIZE(c60_wmac0_leds_gpio));
 250         /* USB */
 251         ath79_register_usb();
 252
 253         /* WiFi */
 254         ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 1);
 255         ap91_pci_init(art + C60_PCIE_CALDATA_OFFSET, tmpmac);
 256         ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 2);
 257         ath79_register_wmac(art + C60_WMAC_CALDATA_OFFSET, tmpmac);
 258 }
 259 MIPS_MACHINE(ATH79_MACH_C60, "C-60", "AirTight Networks C-60",
 260              c60_setup);