board/Marvell/sheevaplug/sheevaplug.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2009
   4  * Marvell Semiconductor <www.marvell.com>
   5  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
   6  */
   7
   8 #include <common.h>
   9 #include <init.h>
  10 #include <miiphy.h>
  11 #include <net.h>
  12 #include <asm/mach-types.h>
  13 #include <asm/arch/cpu.h>
  14 #include <asm/arch/soc.h>
  15 #include <asm/arch/mpp.h>
  16 #include "sheevaplug.h"
  17
  18 DECLARE_GLOBAL_DATA_PTR;
  19
  20 int board_early_init_f(void)
  21 {
  22         /*
  23          * default gpio configuration
  24          * There are maximum 64 gpios controlled through 2 sets of registers
  25          * the  below configuration configures mainly initial LED status
  26          */
  27         mvebu_config_gpio(SHEEVAPLUG_OE_VAL_LOW,
  28                           SHEEVAPLUG_OE_VAL_HIGH,
  29                           SHEEVAPLUG_OE_LOW, SHEEVAPLUG_OE_HIGH);
  30
  31         /* Multi-Purpose Pins Functionality configuration */
  32         static const u32 kwmpp_config[] = {
  33                 MPP0_NF_IO2,
  34                 MPP1_NF_IO3,
  35                 MPP2_NF_IO4,
  36                 MPP3_NF_IO5,
  37                 MPP4_NF_IO6,
  38                 MPP5_NF_IO7,
  39                 MPP6_SYSRST_OUTn,
  40                 MPP7_GPO,
  41                 MPP8_UART0_RTS,
  42                 MPP9_UART0_CTS,
  43                 MPP10_UART0_TXD,
  44                 MPP11_UART0_RXD,
  45                 MPP12_SD_CLK,
  46                 MPP13_SD_CMD,
  47                 MPP14_SD_D0,
  48                 MPP15_SD_D1,
  49                 MPP16_SD_D2,
  50                 MPP17_SD_D3,
  51                 MPP18_NF_IO0,
  52                 MPP19_NF_IO1,
  53                 MPP20_GPIO,
  54                 MPP21_GPIO,
  55                 MPP22_GPIO,
  56                 MPP23_GPIO,
  57                 MPP24_GPIO,
  58                 MPP25_GPIO,
  59                 MPP26_GPIO,
  60                 MPP27_GPIO,
  61                 MPP28_GPIO,
  62                 MPP29_TSMP9,
  63                 MPP30_GPIO,
  64                 MPP31_GPIO,
  65                 MPP32_GPIO,
  66                 MPP33_GPIO,
  67                 MPP34_GPIO,
  68                 MPP35_GPIO,
  69                 MPP36_GPIO,
  70                 MPP37_GPIO,
  71                 MPP38_GPIO,
  72                 MPP39_GPIO,
  73                 MPP40_GPIO,
  74                 MPP41_GPIO,
  75                 MPP42_GPIO,
  76                 MPP43_GPIO,
  77                 MPP44_GPIO,
  78                 MPP45_GPIO,
  79                 MPP46_GPIO,
  80                 MPP47_GPIO,
  81                 MPP48_GPIO,
  82                 MPP49_GPIO,
  83                 0
  84         };
  85         kirkwood_mpp_conf(kwmpp_config, NULL);
  86         return 0;
  87 }
  88
  89 int board_init(void)
  90 {
  91         /*
  92          * arch number of board
  93          */
  94         gd->bd->bi_arch_number = MACH_TYPE_SHEEVAPLUG;
  95
  96         /* adress of boot parameters */
  97         gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
  98
  99         return 0;
 100 }
 101
 102 #ifdef CONFIG_RESET_PHY_R
 103 /* Configure and enable MV88E1116 PHY */
 104 void reset_phy(void)
 105 {
 106         u16 reg;
 107         u16 devadr;
 108         char *name = "egiga0";
 109
 110         if (miiphy_set_current_dev(name))
 111                 return;
 112
 113         /* command to read PHY dev address */
 114         if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) {
 115                 printf("Err..%s could not read PHY dev address\n",
 116                         __FUNCTION__);
 117                 return;
 118         }
 119
 120         /*
 121          * Enable RGMII delay on Tx and Rx for CPU port
 122          * Ref: sec 4.7.2 of chip datasheet
 123          */
 124         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
 125         miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
 126         reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
 127         miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
 128         miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
 129
 130         /* reset the phy */
 131         miiphy_reset(name, devadr);
 132
 133         printf("88E1116 Initialized on %s\n", name);
 134 }
 135 #endif /* CONFIG_RESET_PHY_R */