board/Seagate/nas220/nas220.c

   1 /*
   2  * Copyright (C) 2014  Evgeni Dobrev <evgeni@studio-punkt.com>
   3  *
   4  * Based on sheevaplug.c originally written by
   5  * Prafulla Wadaskar <prafulla@marvell.com>
   6  * (C) Copyright 2009
   7  * Marvell Semiconductor <www.marvell.com>
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <miiphy.h>
  14 #include <asm/mach-types.h>
  15 #include <asm/arch/soc.h>
  16 #include <asm/arch/mpp.h>
  17 #include <asm/arch/cpu.h>
  18 #include <asm/io.h>
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 int board_early_init_f(void)
  23 {
  24         /*
  25          * default gpio configuration
  26          */
  27         mvebu_config_gpio(NAS220_GE_OE_VAL_LOW, NAS220_GE_OE_VAL_HIGH,
  28                           NAS220_GE_OE_LOW, NAS220_GE_OE_HIGH);
  29
  30         /* Multi-Purpose Pins Functionality configuration */
  31         static const u32 kwmpp_config[] = {
  32                 MPP0_NF_IO2,
  33                 MPP1_NF_IO3,
  34                 MPP2_NF_IO4,
  35                 MPP3_NF_IO5,
  36                 MPP4_NF_IO6,
  37                 MPP5_NF_IO7,
  38                 MPP6_SYSRST_OUTn,
  39                 MPP7_SPI_SCn,
  40                 MPP8_TW_SDA,
  41                 MPP9_TW_SCK,
  42                 MPP10_UART0_TXD,
  43                 MPP11_UART0_RXD,
  44                 MPP12_GPO,
  45                 MPP13_GPIO,
  46                 MPP14_GPIO,
  47                 MPP15_SATA0_ACTn,
  48                 MPP16_SATA1_ACTn,
  49                 MPP17_SATA0_PRESENTn,
  50                 MPP18_NF_IO0,
  51                 MPP19_NF_IO1,
  52                 MPP20_GPIO,
  53                 MPP21_GPIO,
  54                 MPP22_GPIO,
  55                 MPP23_GPIO,
  56                 MPP24_GPIO,
  57                 MPP25_GPIO,
  58                 MPP26_GPIO,
  59                 MPP27_GPIO,
  60                 MPP28_GPIO,
  61                 MPP29_GPIO,
  62                 MPP30_GPIO,
  63                 MPP31_GPIO,
  64                 MPP32_GPIO,
  65                 MPP33_GPIO,
  66                 MPP34_GPIO,
  67                 MPP35_GPIO,
  68                 0
  69         };
  70         kirkwood_mpp_conf(kwmpp_config, NULL);
  71         return 0;
  72 }
  73
  74 int board_init(void)
  75 {
  76         /*
  77          * arch number of board
  78          */
  79         gd->bd->bi_arch_number = MACH_TYPE_RD88F6192_NAS;
  80
  81         /* adress of boot parameters */
  82         gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
  83
  84         return 0;
  85 }
  86
  87 #ifdef CONFIG_RESET_PHY_R
  88 /* Configure and enable MV88E1116 PHY */
  89 void reset_phy(void)
  90 {
  91         u16 reg;
  92         u16 devadr;
  93         char *name = "egiga0";
  94
  95         if (miiphy_set_current_dev(name))
  96                 return;
  97
  98         /* command to read PHY dev address */
  99         if (miiphy_read(name, 0xEE, 0xEE, (u16 *)&devadr)) {
 100                 printf("Err..%s could not read PHY dev address\n", __func__);
 101                 return;
 102         }
 103
 104         /*
 105          * Enable RGMII delay on Tx and Rx for CPU port
 106          * Ref: sec 4.7.2 of chip datasheet
 107          */
 108         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
 109         miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
 110         reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
 111         miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
 112         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
 113
 114         /* reset the phy */
 115         miiphy_reset(name, devadr);
 116
 117         printf("88E1116 Initialized on %s\n", name);
 118 }
 119 #endif /* CONFIG_RESET_PHY_R */