board/renesas/ulcb/ulcb.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * board/renesas/ulcb/ulcb.c
   4  *     This file is ULCB board support.
   5  *
   6  * Copyright (C) 2017 Renesas Electronics Corporation
   7  */
   8
   9 #include <common.h>
  10 #include <malloc.h>
  11 #include <netdev.h>
  12 #include <dm.h>
  13 #include <dm/platform_data/serial_sh.h>
  14 #include <asm/processor.h>
  15 #include <asm/mach-types.h>
  16 #include <asm/io.h>
  17 #include <linux/errno.h>
  18 #include <asm/arch/sys_proto.h>
  19 #include <asm/gpio.h>
  20 #include <asm/arch/gpio.h>
  21 #include <asm/arch/rmobile.h>
  22 #include <asm/arch/rcar-mstp.h>
  23 #include <asm/arch/sh_sdhi.h>
  24 #include <i2c.h>
  25 #include <mmc.h>
  26
  27 DECLARE_GLOBAL_DATA_PTR;
  28
  29 #define CPGWPCR 0xE6150904
  30 #define CPGWPR  0xE615090C
  31
  32 #define CLK2MHZ(clk)    (clk / 1000 / 1000)
  33 void s_init(void)
  34 {
  35         struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
  36         struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
  37
  38         /* Watchdog init */
  39         writel(0xA5A5A500, &rwdt->rwtcsra);
  40         writel(0xA5A5A500, &swdt->swtcsra);
  41
  42         writel(0xA5A50000, CPGWPCR);
  43         writel(0xFFFFFFFF, CPGWPR);
  44 }
  45
  46 #define GSX_MSTP112             BIT(12) /* 3DG */
  47 #define TMU0_MSTP125            BIT(25) /* secure */
  48 #define TMU1_MSTP124            BIT(24) /* non-secure */
  49 #define SCIF2_MSTP310           BIT(10) /* SCIF2 */
  50 #define DVFS_MSTP926            BIT(26)
  51 #define HSUSB_MSTP704           BIT(4)  /* HSUSB */
  52
  53 int board_early_init_f(void)
  54 {
  55         /* TMU0,1 */            /* which use ? */
  56         mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125 | TMU1_MSTP124);
  57
  58 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
  59         /* DVFS for reset */
  60         mstp_clrbits_le32(MSTPSR9, SMSTPCR9, DVFS_MSTP926);
  61 #endif
  62         return 0;
  63 }
  64
  65 /* SYSC */
  66 /* R/- 32 Power status register 2(3DG) */
  67 #define SYSC_PWRSR2     0xE6180100
  68 /* -/W 32 Power resume control register 2 (3DG) */
  69 #define SYSC_PWRONCR2   0xE618010C
  70
  71 /* HSUSB block registers */
  72 #define HSUSB_REG_LPSTS                 0xE6590102
  73 #define HSUSB_REG_LPSTS_SUSPM_NORMAL    BIT(14)
  74 #define HSUSB_REG_UGCTRL2               0xE6590184
  75 #define HSUSB_REG_UGCTRL2_USB0SEL       0x30
  76 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI  0x10
  77
  78 int board_init(void)
  79 {
  80         /* adress of boot parameters */
  81         gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000;
  82
  83         /* USB1 pull-up */
  84         setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
  85
  86         /* Configure the HSUSB block */
  87         mstp_clrbits_le32(MSTPSR7, SMSTPCR7, HSUSB_MSTP704);
  88         /* Choice USB0SEL */
  89         clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
  90                         HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
  91         /* low power status */
  92         setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
  93
  94         return 0;
  95 }
  96
  97 int dram_init(void)
  98 {
  99         if (fdtdec_setup_mem_size_base() != 0)
 100                 return -EINVAL;
 101
 102         return 0;
 103 }
 104
 105 int dram_init_banksize(void)
 106 {
 107         fdtdec_setup_memory_banksize();
 108
 109         return 0;
 110 }