board/Marvell/sheevaplug/sheevaplug.c

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