LXR uboot/board/renesas/salvator-x/salvator-x.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * board/renesas/salvator-x/salvator-x.c
   4 *     This file is Salvator-X/Salvator-XS board support.
   5 *
   6 * Copyright (C) 2015-2017 Renesas Electronics Corporation
   7 * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
   8 */
   9
  10#include <common.h>
  11#include <cpu_func.h>
  12#include <image.h>
  13#include <init.h>
  14#include <malloc.h>
  15#include <netdev.h>
  16#include <dm.h>
  17#include <asm/global_data.h>
  18#include <dm/platform_data/serial_sh.h>
  19#include <asm/processor.h>
  20#include <asm/mach-types.h>
  21#include <asm/io.h>
  22#include <linux/bitops.h>
  23#include <linux/errno.h>
  24#include <asm/arch/sys_proto.h>
  25#include <asm/gpio.h>
  26#include <asm/arch/gpio.h>
  27#include <asm/arch/rmobile.h>
  28#include <asm/arch/rcar-mstp.h>
  29#include <asm/arch/sh_sdhi.h>
  30#include <i2c.h>
  31#include <mmc.h>
  32
  33DECLARE_GLOBAL_DATA_PTR;
  34
  35#define DVFS_MSTP926            BIT(26)
  36#define HSUSB_MSTP704           BIT(4)  /* HSUSB */
  37
  38int board_early_init_f(void)
  39{
  40#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
  41        /* DVFS for reset */
  42        mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
  43#endif
  44        return 0;
  45}
  46
  47/* HSUSB block registers */
  48#define HSUSB_REG_LPSTS                 0xE6590102
  49#define HSUSB_REG_LPSTS_SUSPM_NORMAL    BIT(14)
  50#define HSUSB_REG_UGCTRL2               0xE6590184
  51#define HSUSB_REG_UGCTRL2_USB0SEL       0x30
  52#define HSUSB_REG_UGCTRL2_USB0SEL_EHCI  0x10
  53
  54int board_init(void)
  55{
  56        /* USB1 pull-up */
  57        setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
  58
  59        /* Configure the HSUSB block */
  60        mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704);
  61        /* Choice USB0SEL */
  62        clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
  63                        HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
  64        /* low power status */
  65        setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
  66
  67        return 0;
  68}
  69
  70#define RST_BASE        0xE6160000
  71#define RST_CA57RESCNT  (RST_BASE + 0x40)
  72#define RST_CA53RESCNT  (RST_BASE + 0x44)
  73#define RST_RSTOUTCR    (RST_BASE + 0x58)
  74#define RST_CODE        0xA5A5000F
  75
  76void reset_cpu(void)
  77{
  78#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
  79        i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
  80#else
  81        /* only CA57 ? */
  82        writel(RST_CODE, RST_CA57RESCNT);
  83#endif
  84}
  85
  86#ifdef CONFIG_MULTI_DTB_FIT
  87int board_fit_config_name_match(const char *name)
  88{
  89        /* PRR driver is not available yet */
  90        u32 cpu_type = rmobile_get_cpu_type();
  91
  92        if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
  93            !strcmp(name, "r8a77950-salvator-x-u-boot"))
  94                return 0;
  95
  96        if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
  97            !strcmp(name, "r8a77960-salvator-x-u-boot"))
  98                return 0;
  99
 100        if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) &&
 101            !strcmp(name, "r8a77965-salvator-x-u-boot"))
 102                return 0;
 103
 104        return -1;
 105}
 106#endif
 107