LXR uboot/board/maxbcm/maxbcm.c

   1/*
   2 * Copyright (C) 2014 Stefan Roese <sr@denx.de>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <miiphy.h>
   9#include <asm/io.h>
  10#include <asm/arch/cpu.h>
  11#include <asm/arch/soc.h>
  12#include <linux/mbus.h>
  13
  14#include "../drivers/ddr/marvell/axp/ddr3_hw_training.h"
  15#include "../arch/arm/mach-mvebu/serdes/axp/high_speed_env_spec.h"
  16
  17DECLARE_GLOBAL_DATA_PTR;
  18
  19/* Base addresses for the external device chip selects */
  20#define DEV_CS0_BASE            0xe0000000
  21#define DEV_CS1_BASE            0xe1000000
  22#define DEV_CS2_BASE            0xe2000000
  23#define DEV_CS3_BASE            0xe3000000
  24
  25/* DDR3 static configuration */
  26MV_DRAM_MC_INIT ddr3_b0_maxbcm[MV_MAX_DDR3_STATIC_SIZE] = {
  27        {0x00001400, 0x7301CC30},       /* DDR SDRAM Configuration Register */
  28        {0x00001404, 0x30000820},       /* Dunit Control Low Register */
  29        {0x00001408, 0x5515BAAB},       /* DDR SDRAM Timing (Low) Register */
  30        {0x0000140C, 0x38DA3F97},       /* DDR SDRAM Timing (High) Register */
  31        {0x00001410, 0x20100005},       /* DDR SDRAM Address Control Register */
  32        {0x00001414, 0x0000F3FF},       /* DDR SDRAM Open Pages Control Reg */
  33        {0x00001418, 0x00000e00},       /* DDR SDRAM Operation Register */
  34        {0x0000141C, 0x00000672},       /* DDR SDRAM Mode Register */
  35        {0x00001420, 0x00000004},       /* DDR SDRAM Extended Mode Register */
  36        {0x00001424, 0x0000F3FF},       /* Dunit Control High Register */
  37        {0x00001428, 0x0011A940},       /* Dunit Control High Register */
  38        {0x0000142C, 0x014C5134},       /* Dunit Control High Register */
  39        {0x0000147C, 0x0000D771},
  40
  41        {0x00001494, 0x00010000},       /* DDR SDRAM ODT Control (Low) Reg */
  42        {0x0000149C, 0x00000001},       /* DDR Dunit ODT Control Register */
  43        {0x000014A0, 0x00000001},
  44        {0x000014A8, 0x00000101},
  45
  46        /* Recommended Settings from Marvell for 4 x 16 bit devices: */
  47        {0x000014C0, 0x192424C9},       /* DRAM addr and Ctrl Driving Strenght*/
  48        {0x000014C4, 0xAAA24C9},        /* DRAM Data and DQS Driving Strenght */
  49
  50        /*
  51         * DO NOT Modify - Open Mbus Window - 2G - Mbus is required for the
  52         * training sequence
  53         */
  54        {0x000200e8, 0x3FFF0E01},
  55        {0x00020184, 0x3FFFFFE0},       /* Close fast path Window to - 2G */
  56
  57        {0x0001504, 0x3FFFFFE1},        /* CS0 Size */
  58        {0x000150C, 0x00000000},        /* CS1 Size */
  59        {0x0001514, 0x00000000},        /* CS2 Size */
  60        {0x000151C, 0x00000000},        /* CS3 Size */
  61
  62        {0x0020220, 0x00000007},        /* Reserved */
  63
  64        {0x00001538, 0x0000000B},       /* Read Data Sample Delays Register */
  65        {0x0000153C, 0x0000000B},       /* Read Data Ready Delay Register */
  66
  67        {0x000015D0, 0x00000670},       /* MR0 */
  68        {0x000015D4, 0x00000044},       /* MR1 */
  69        {0x000015D8, 0x00000018},       /* MR2 */
  70        {0x000015DC, 0x00000000},       /* MR3 */
  71        {0x000015E0, 0x00000001},
  72        {0x000015E4, 0x00203c18},       /* ZQDS Configuration Register */
  73        {0x000015EC, 0xF800A225},       /* DDR PHY */
  74
  75        {0x0, 0x0}
  76};
  77
  78MV_DRAM_MODES maxbcm_ddr_modes[MV_DDR3_MODES_NUMBER] = {
  79        {"maxbcm_1600-800", 0xB, 0x5, 0x0, A0, ddr3_b0_maxbcm,  NULL},
  80};
  81
  82extern MV_SERDES_CHANGE_M_PHY serdes_change_m_phy[];
  83
  84/* MAXBCM: SERDES 0-4 PCIE, Serdes 7 = SGMII 0, all others =  unconnected */
  85MV_BIN_SERDES_CFG maxbcm_serdes_cfg[] = {
  86        { MV_PEX_ROOT_COMPLEX, 0x20011111, 0x00000000,
  87          { PEX_BUS_MODE_X1, PEX_BUS_MODE_X1, PEX_BUS_DISABLED,
  88            PEX_BUS_DISABLED },
  89          0x1f, serdes_change_m_phy
  90        }
  91};
  92
  93MV_DRAM_MODES *ddr3_get_static_ddr_mode(void)
  94{
  95        /* Only one mode supported for this board */
  96        return &maxbcm_ddr_modes[0];
  97}
  98
  99MV_BIN_SERDES_CFG *board_serdes_cfg_get(u8 pex_mode)
 100{
 101        return &maxbcm_serdes_cfg[0];
 102}
 103
 104int board_early_init_f(void)
 105{
 106        /*
 107         * Don't configure MPP (pin multiplexing) and GPIO here,
 108         * its already done in bin_hdr
 109         */
 110
 111        /*
 112         * Setup some board specific mbus address windows
 113         */
 114        mbus_dt_setup_win(&mbus_state, DEV_CS0_BASE, 16 << 20,
 115                          CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS0);
 116        mbus_dt_setup_win(&mbus_state, DEV_CS1_BASE, 16 << 20,
 117                          CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS1);
 118        mbus_dt_setup_win(&mbus_state, DEV_CS2_BASE, 16 << 20,
 119                          CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS2);
 120        mbus_dt_setup_win(&mbus_state, DEV_CS3_BASE, 16 << 20,
 121                          CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS3);
 122
 123        return 0;
 124}
 125
 126int board_init(void)
 127{
 128        /* adress of boot parameters */
 129        gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
 130
 131        return 0;
 132}
 133
 134int checkboard(void)
 135{
 136        puts("Board: maxBCM\n");
 137
 138        return 0;
 139}
 140
 141/* Configure and enable MV88E6185 switch */
 142int board_phy_config(struct phy_device *phydev)
 143{
 144        /*
 145         * todo:
 146         * Fill this with the real setup / config code.
 147         * Please see board/Marvell/db-mv784mp-gp/db-mv784mp-gp.c
 148         * for details.
 149         */
 150        printf("88E6185 Initialized\n");
 151        return 0;
 152}
 153