board/Seagate/goflexhome/goflexhome.c

   1 /*
   2  * Copyright (C) 2013 Suriyan Ramasami <suriyan.r@gmail.com>
   3  *
   4  * Based on dockstar.c originally written by
   5  * Copyright (C) 2010  Eric C. Cooper <ecc@cmu.edu>
   6  *
   7  * Based on sheevaplug.c originally written by
   8  * Prafulla Wadaskar <prafulla@marvell.com>
   9  * (C) Copyright 2009
  10  * Marvell Semiconductor <www.marvell.com>
  11  *
  12  * SPDX-License-Identifier:     GPL-2.0+
  13  */
  14
  15 #include <common.h>
  16 #include <miiphy.h>
  17 #include <asm/arch/kirkwood.h>
  18 #include <asm/arch/mpp.h>
  19 #include <asm/arch/cpu.h>
  20 #include <asm/io.h>
  21
  22 DECLARE_GLOBAL_DATA_PTR;
  23
  24 int board_early_init_f(void)
  25 {
  26         /* Multi-Purpose Pins Functionality configuration */
  27         static const u32 kwmpp_config[] = {
  28                 MPP0_NF_IO2,
  29                 MPP1_NF_IO3,
  30                 MPP2_NF_IO4,
  31                 MPP3_NF_IO5,
  32                 MPP4_NF_IO6,
  33                 MPP5_NF_IO7,
  34                 MPP6_SYSRST_OUTn,
  35                 MPP7_GPO,
  36                 MPP8_UART0_RTS,
  37                 MPP9_UART0_CTS,
  38                 MPP10_UART0_TXD,
  39                 MPP11_UART0_RXD,
  40                 MPP12_SD_CLK,
  41                 MPP13_SD_CMD,
  42                 MPP14_SD_D0,
  43                 MPP15_SD_D1,
  44                 MPP16_SD_D2,
  45                 MPP17_SD_D3,
  46                 MPP18_NF_IO0,
  47                 MPP19_NF_IO1,
  48                 MPP20_GPIO,
  49                 MPP21_GPIO,
  50                 MPP22_GPIO,
  51                 MPP23_GPIO,
  52                 MPP24_GPIO,
  53                 MPP25_GPIO,
  54                 MPP26_GPIO,
  55                 MPP27_GPIO,
  56                 MPP28_GPIO,
  57                 MPP29_TSMP9,
  58                 MPP30_GPIO,
  59                 MPP31_GPIO,
  60                 MPP32_GPIO,
  61                 MPP33_GPIO,
  62                 MPP34_GPIO,
  63                 MPP35_GPIO,
  64                 MPP36_GPIO,
  65                 MPP37_GPIO,
  66                 MPP38_GPIO,
  67                 MPP39_GPIO,
  68                 MPP40_GPIO,
  69                 MPP41_GPIO,
  70                 MPP42_GPIO,
  71                 MPP43_GPIO,
  72                 MPP44_GPIO,
  73                 MPP45_GPIO,
  74                 MPP46_GPIO,
  75                 MPP47_GPIO,
  76                 MPP48_GPIO,
  77                 MPP49_GPIO,
  78                 0
  79         };
  80
  81         /*
  82          * default gpio configuration
  83          * There are maximum 64 gpios controlled through 2 sets of registers
  84          * the  below configuration configures mainly initial LED status
  85          */
  86         kw_config_gpio(GOFLEXHOME_OE_VAL_LOW,
  87                        GOFLEXHOME_OE_VAL_HIGH,
  88                        GOFLEXHOME_OE_LOW, GOFLEXHOME_OE_HIGH);
  89         kirkwood_mpp_conf(kwmpp_config, NULL);
  90         return 0;
  91 }
  92
  93 int board_init(void)
  94 {
  95         /*
  96          * arch number of board
  97          */
  98         gd->bd->bi_arch_number = MACH_TYPE_GOFLEXHOME;
  99
 100         /* address of boot parameters */
 101         gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
 102
 103         return 0;
 104 }
 105
 106 #ifdef CONFIG_RESET_PHY_R
 107 /* Configure and enable MV88E1116 PHY */
 108 void reset_phy(void)
 109 {
 110         u16 reg;
 111         u16 devadr;
 112         char *name = "egiga0";
 113
 114         if (miiphy_set_current_dev(name))
 115                 return;
 116
 117         /* command to read PHY dev address */
 118         if (miiphy_read(name, 0xEE, 0xEE, (u16 *)&devadr)) {
 119                 printf("Err..%s could not read PHY dev address\n",
 120                        __func__);
 121                 return;
 122         }
 123
 124         /*
 125          * Enable RGMII delay on Tx and Rx for CPU port
 126          * Ref: sec 4.7.2 of chip datasheet
 127          */
 128         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
 129         miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
 130         reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
 131         miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
 132         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
 133
 134         /* reset the phy */
 135         miiphy_reset(name, devadr);
 136
 137         printf("88E1116 Initialized on %s\n", name);
 138 }
 139 #endif /* CONFIG_RESET_PHY_R */
 140
 141 #define GREEN_LED       (1 << 14)
 142 #define ORANGE_LED      (1 << 15)
 143 #define BOTH_LEDS       (GREEN_LED | ORANGE_LED)
 144 #define NEITHER_LED     0
 145
 146 static void set_leds(u32 leds, u32 blinking)
 147 {
 148         struct kwgpio_registers *r;
 149         u32 oe;
 150         u32 bl;
 151
 152         r = (struct kwgpio_registers *)KW_GPIO1_BASE;
 153         oe = readl(&r->oe) | BOTH_LEDS;
 154         writel(oe & ~leds, &r->oe);     /* active low */
 155         bl = readl(&r->blink_en) & ~BOTH_LEDS;
 156         writel(bl | blinking, &r->blink_en);
 157 }
 158
 159 void show_boot_progress(int val)
 160 {
 161         switch (val) {
 162         case BOOTSTAGE_ID_RUN_OS:               /* booting Linux */
 163                 set_leds(BOTH_LEDS, NEITHER_LED);
 164                 break;
 165         case BOOTSTAGE_ID_NET_ETH_START:        /* Ethernet initialization */
 166                 set_leds(GREEN_LED, GREEN_LED);
 167                 break;
 168         default:
 169                 if (val < 0)    /* error */
 170                         set_leds(ORANGE_LED, ORANGE_LED);
 171                 break;
 172         }
 173 }