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/version.h>
  16 #include <linux/pci.h>
  17 #include <linux/phy.h>
  18 #include <linux/mtd/mtd.h>
  19 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
  20 #include <linux/mtd/nand.h>
  21 #else
  22 #include <linux/mtd/rawnand.h>
  23 #endif
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/platform/ar934x_nfc.h>
  28 #include <linux/ar8216_platform.h>
  29 #include <linux/ath9k_platform.h>
  30 #include <linux/version.h>
  31
  32 #include <asm/mach-ath79/ar71xx_regs.h>
  33
  34 #include "common.h"
  35 #include "pci.h"
  36 #include "dev-ap9x-pci.h"
  37 #include "dev-eth.h"
  38 #include "dev-gpio-buttons.h"
  39 #include "dev-leds-gpio.h"
  40 #include "dev-m25p80.h"
  41 #include "dev-spi.h"
  42 #include "dev-wmac.h"
  43 #include "dev-usb.h"
  44 #include "dev-nfc.h"
  45 #include "machtypes.h"
  46
  47 #define C60_GPIO_LED_PWR_AMBER          11
  48 #define C60_GPIO_LED_WLAN2_GREEN        12
  49 #define C60_GPIO_LED_WLAN2_AMBER        13
  50 #define C60_GPIO_LED_PWR_GREEN          16
  51
  52 #define C60_GPIO_BTN_RESET              17
  53
  54 /* GPIOs of the AR9300 PCIe chip */
  55 #define C60_GPIO_WMAC_LED_WLAN1_AMBER   0
  56 #define C60_GPIO_WMAC_LED_WLAN1_GREEN   3
  57
  58 #define C60_KEYS_POLL_INTERVAL          20      /* msecs */
  59 #define C60_KEYS_DEBOUNCE_INTERVAL (3 * C60_KEYS_POLL_INTERVAL)
  60
  61 #define C60_ART_ADDR                    0x1f7f0000
  62 #define C60_ART_SIZE                    0xffff
  63 #define C60_MAC_OFFSET                  0
  64 #define C60_WMAC_CALDATA_OFFSET         0x1000
  65 #define C60_PCIE_CALDATA_OFFSET         0x5000
  66
  67 static struct gpio_led c60_leds_gpio[] __initdata = {
  68         {
  69                 .name           = "c-60:amber:pwr",
  70                 .gpio           = C60_GPIO_LED_PWR_AMBER,
  71                 .active_low     = 1,
  72         },
  73         {
  74                 .name           = "c-60:green:pwr",
  75                 .gpio           = C60_GPIO_LED_PWR_GREEN,
  76                 .active_low     = 1,
  77         },
  78         {
  79                 .name           = "c-60:green:wlan2",
  80                 .gpio           = C60_GPIO_LED_WLAN2_GREEN,
  81                 .active_low     = 1,
  82         },
  83         {
  84                 .name           = "c-60:amber:wlan2",
  85                 .gpio           = C60_GPIO_LED_WLAN2_AMBER,
  86                 .active_low     = 1,
  87         },
  88 };
  89
  90 static struct gpio_keys_button c60_gpio_keys[] __initdata = {
  91         {
  92                 .desc           = "Reset button",
  93                 .type           = EV_KEY,
  94                 .code           = KEY_RESTART,
  95                 .debounce_interval = C60_KEYS_DEBOUNCE_INTERVAL,
  96                 .gpio           = C60_GPIO_BTN_RESET,
  97                 .active_low     = 1,
  98         },
  99 };
 100
 101 static struct ar8327_pad_cfg c60_ar8327_pad0_cfg = {
 102         .mode = AR8327_PAD_MAC_RGMII,
 103         .txclk_delay_en = true,
 104         .rxclk_delay_en = true,
 105         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
 106         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 107 };
 108
 109 static struct ar8327_platform_data c60_ar8327_data = {
 110         .pad0_cfg = &c60_ar8327_pad0_cfg,
 111         .port0_cfg = {
 112                 .force_link = 1,
 113                 .speed = AR8327_PORT_SPEED_1000,
 114                 .duplex = 1,
 115                 .txpause = 1,
 116                 .rxpause = 1,
 117         }
 118 };
 119
 120 static struct mdio_board_info c60_mdio0_info[] = {
 121         {
 122                 .bus_id = "ag71xx-mdio.0",
 123                 .mdio_addr = 0,
 124                 .platform_data = &c60_ar8327_data,
 125         },
 126 };
 127
 128 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 129 static struct nand_ecclayout c60_nand_ecclayout = {
 130         .eccbytes       = 7,
 131         .eccpos         = { 4, 8, 9, 10, 13, 14, 15 },
 132         .oobavail       = 9,
 133         .oobfree        = { { 0, 3 }, { 6, 2 }, { 11, 2 }, }
 134 };
 135
 136 #else
 137
 138 static int c60_ooblayout_ecc(struct mtd_info *mtd, int section,
 139                              struct mtd_oob_region *oobregion)
 140 {
 141         switch (section) {
 142         case 0:
 143                 oobregion->offset = 4;
 144                 oobregion->length = 1;
 145                 return 0;
 146         case 1:
 147                 oobregion->offset = 8;
 148                 oobregion->length = 3;
 149                 return 0;
 150         case 2:
 151                 oobregion->offset = 13;
 152                 oobregion->length = 3;
 153                 return 0;
 154         default:
 155                 return -ERANGE;
 156         }
 157 }
 158
 159 static int c60_ooblayout_free(struct mtd_info *mtd, int section,
 160                               struct mtd_oob_region *oobregion)
 161 {
 162         switch (section) {
 163         case 0:
 164                 oobregion->offset = 0;
 165                 oobregion->length = 3;
 166                 return 0;
 167         case 1:
 168                 oobregion->offset = 6;
 169                 oobregion->length = 2;
 170                 return 0;
 171         case 2:
 172                 oobregion->offset = 11;
 173                 oobregion->length = 2;
 174                 return 0;
 175         default:
 176                 return -ERANGE;
 177         }
 178 }
 179
 180 static const struct mtd_ooblayout_ops c60_nand_ecclayout_ops = {
 181         .ecc = c60_ooblayout_ecc,
 182         .free = c60_ooblayout_free,
 183 };
 184 #endif /* < 4.6 */
 185
 186 static int c60_nand_scan_fixup(struct mtd_info *mtd)
 187 {
 188 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 189         struct nand_chip *chip = mtd->priv;
 190 #else
 191         struct nand_chip *chip = mtd_to_nand(mtd);
 192 #endif
 193
 194         chip->ecc.size = 512;
 195         chip->ecc.strength = 4;
 196 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 197         chip->ecc.layout = &c60_nand_ecclayout;
 198 #else
 199         mtd_set_ooblayout(mtd, &c60_nand_ecclayout_ops);
 200 #endif
 201         return 0;
 202 }
 203
 204 static struct gpio_led c60_wmac0_leds_gpio[] = {
 205         {
 206                 .name           = "c-60:amber:wlan1",
 207                 .gpio           = C60_GPIO_WMAC_LED_WLAN1_AMBER,
 208                 .active_low     = 1,
 209         },
 210         {
 211                 .name           = "c-60:green:wlan1",
 212                 .gpio           = C60_GPIO_WMAC_LED_WLAN1_GREEN,
 213                 .active_low     = 1,
 214         },
 215 };
 216
 217 static void __init c60_setup(void)
 218 {
 219         u8 tmpmac[6];
 220         u8 *art = (u8 *) KSEG1ADDR(C60_ART_ADDR);
 221
 222         /* NAND */
 223         ath79_nfc_set_ecc_mode(AR934X_NFC_ECC_SOFT_BCH);
 224         ath79_nfc_set_scan_fixup(c60_nand_scan_fixup);
 225         ath79_register_nfc();
 226
 227         /* SPI Storage*/
 228         ath79_register_m25p80(NULL);
 229
 230         /* AR8327 Switch Ethernet */
 231
 232         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
 233
 234         mdiobus_register_board_info(c60_mdio0_info,
 235                                     ARRAY_SIZE(c60_mdio0_info));
 236
 237         ath79_register_mdio(0, 0x0);
 238
 239         /* GMAC0 is connected to an AR8327N switch */
 240         ath79_init_mac(ath79_eth0_data.mac_addr, art + C60_MAC_OFFSET, 0);
 241         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 242         ath79_eth0_data.phy_mask = BIT(0);
 243         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 244         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 245         ath79_register_eth(0);
 246
 247         /* LEDs & GPIO */
 248         ath79_register_leds_gpio(-1, ARRAY_SIZE(c60_leds_gpio),
 249                                  c60_leds_gpio);
 250         ath79_register_gpio_keys_polled(-1, C60_KEYS_POLL_INTERVAL,
 251                                         ARRAY_SIZE(c60_gpio_keys),
 252                                         c60_gpio_keys);
 253         ap9x_pci_setup_wmac_leds(0, c60_wmac0_leds_gpio,
 254                                  ARRAY_SIZE(c60_wmac0_leds_gpio));
 255         /* USB */
 256         ath79_register_usb();
 257
 258         /* WiFi */
 259         ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 1);
 260         ap91_pci_init(art + C60_PCIE_CALDATA_OFFSET, tmpmac);
 261         ath79_init_mac(tmpmac, art + C60_MAC_OFFSET, 2);
 262         ath79_register_wmac(art + C60_WMAC_CALDATA_OFFSET, tmpmac);
 263 }
 264 MIPS_MACHINE(ATH79_MACH_C60, "C-60", "AirTight Networks C-60",
 265              c60_setup);