uboot/board/renesas/alt/alt.c
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   1/*
   2 * board/renesas/alt/alt.c
   3 *
   4 * Copyright (C) 2014, 2015 Renesas Electronics Corporation
   5 *
   6 * SPDX-License-Identifier: GPL-2.0
   7 */
   8
   9#include <common.h>
  10#include <malloc.h>
  11#include <dm.h>
  12#include <dm/platform_data/serial_sh.h>
  13#include <asm/processor.h>
  14#include <asm/mach-types.h>
  15#include <asm/io.h>
  16#include <linux/errno.h>
  17#include <asm/arch/sys_proto.h>
  18#include <asm/gpio.h>
  19#include <asm/arch/rmobile.h>
  20#include <asm/arch/rcar-mstp.h>
  21#include <asm/arch/mmc.h>
  22#include <asm/arch/sh_sdhi.h>
  23#include <netdev.h>
  24#include <miiphy.h>
  25#include <i2c.h>
  26#include <div64.h>
  27#include "qos.h"
  28
  29DECLARE_GLOBAL_DATA_PTR;
  30
  31#define CLK2MHZ(clk)    (clk / 1000 / 1000)
  32void s_init(void)
  33{
  34        struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
  35        struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
  36
  37        /* Watchdog init */
  38        writel(0xA5A5A500, &rwdt->rwtcsra);
  39        writel(0xA5A5A500, &swdt->swtcsra);
  40
  41        /* QoS */
  42        qos_init();
  43}
  44
  45#define TMU0_MSTP125    (1 << 25)
  46#define SCIF2_MSTP719   (1 << 19)
  47#define ETHER_MSTP813   (1 << 13)
  48#define IIC1_MSTP323    (1 << 23)
  49#define MMC0_MSTP315    (1 << 15)
  50#define SDHI0_MSTP314   (1 << 14)
  51#define SDHI1_MSTP312   (1 << 12)
  52
  53#define SD1CKCR         0xE6150078
  54#define SD1_97500KHZ    0x7
  55
  56int board_early_init_f(void)
  57{
  58        /* TMU */
  59        mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
  60
  61        /* SCIF2 */
  62        mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719);
  63
  64        /* ETHER */
  65        mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);
  66
  67        /* IIC1 / sh-i2c ch1 */
  68        mstp_clrbits_le32(MSTPSR3, SMSTPCR3, IIC1_MSTP323);
  69
  70#ifdef CONFIG_SH_MMCIF
  71        /* MMC */
  72        mstp_clrbits_le32(MSTPSR3, SMSTPCR3, MMC0_MSTP315);
  73#endif
  74
  75#ifdef CONFIG_SH_SDHI
  76        /* SDHI0, 1 */
  77        mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI0_MSTP314 | SDHI1_MSTP312);
  78
  79        /*
  80         * SD0 clock is set to 97.5MHz by default.
  81         * Set SD1 to the 97.5MHz as well.
  82         */
  83        writel(SD1_97500KHZ, SD1CKCR);
  84#endif
  85        return 0;
  86}
  87
  88int board_init(void)
  89{
  90        /* adress of boot parameters */
  91        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  92
  93        /* Init PFC controller */
  94        r8a7794_pinmux_init();
  95
  96        /* Ether Enable */
  97#if defined(CONFIG_R8A7794_ETHERNET_B)
  98        gpio_request(GPIO_FN_ETH_CRS_DV_B, NULL);
  99        gpio_request(GPIO_FN_ETH_RX_ER_B, NULL);
 100        gpio_request(GPIO_FN_ETH_RXD0_B, NULL);
 101        gpio_request(GPIO_FN_ETH_RXD1_B, NULL);
 102        gpio_request(GPIO_FN_ETH_LINK_B, NULL);
 103        gpio_request(GPIO_FN_ETH_REFCLK_B, NULL);
 104        gpio_request(GPIO_FN_ETH_MDIO_B, NULL);
 105        gpio_request(GPIO_FN_ETH_TXD1_B, NULL);
 106        gpio_request(GPIO_FN_ETH_TX_EN_B, NULL);
 107        gpio_request(GPIO_FN_ETH_MAGIC_B, NULL);
 108        gpio_request(GPIO_FN_ETH_TXD0_B, NULL);
 109        gpio_request(GPIO_FN_ETH_MDC_B, NULL);
 110#else
 111        gpio_request(GPIO_FN_ETH_CRS_DV, NULL);
 112        gpio_request(GPIO_FN_ETH_RX_ER, NULL);
 113        gpio_request(GPIO_FN_ETH_RXD0, NULL);
 114        gpio_request(GPIO_FN_ETH_RXD1, NULL);
 115        gpio_request(GPIO_FN_ETH_LINK, NULL);
 116        gpio_request(GPIO_FN_ETH_REFCLK, NULL);
 117        gpio_request(GPIO_FN_ETH_MDIO, NULL);
 118        gpio_request(GPIO_FN_ETH_TXD1, NULL);
 119        gpio_request(GPIO_FN_ETH_TX_EN, NULL);
 120        gpio_request(GPIO_FN_ETH_MAGIC, NULL);
 121        gpio_request(GPIO_FN_ETH_TXD0, NULL);
 122        gpio_request(GPIO_FN_ETH_MDC, NULL);
 123#endif
 124        gpio_request(GPIO_FN_IRQ8, NULL);
 125
 126        /* PHY reset */
 127        gpio_request(GPIO_GP_1_24, NULL);
 128        gpio_direction_output(GPIO_GP_1_24, 0);
 129        mdelay(20);
 130        gpio_set_value(GPIO_GP_1_24, 1);
 131        udelay(1);
 132
 133        return 0;
 134}
 135
 136#define CXR24 0xEE7003C0 /* MAC address high register */
 137#define CXR25 0xEE7003C8 /* MAC address low register */
 138int board_eth_init(bd_t *bis)
 139{
 140#ifdef CONFIG_SH_ETHER
 141        int ret = -ENODEV;
 142        u32 val;
 143        unsigned char enetaddr[6];
 144
 145        ret = sh_eth_initialize(bis);
 146        if (!eth_env_get_enetaddr("ethaddr", enetaddr))
 147                return ret;
 148
 149        /* Set Mac address */
 150        val = enetaddr[0] << 24 | enetaddr[1] << 16 |
 151                enetaddr[2] << 8 | enetaddr[3];
 152        writel(val, CXR24);
 153
 154        val = enetaddr[4] << 8 | enetaddr[5];
 155        writel(val, CXR25);
 156
 157        return ret;
 158#else
 159        return 0;
 160#endif
 161}
 162
 163int board_mmc_init(bd_t *bis)
 164{
 165        int ret = -ENODEV;
 166
 167#ifdef CONFIG_SH_MMCIF
 168        gpio_request(GPIO_GP_4_31, NULL);
 169        gpio_set_value(GPIO_GP_4_31, 1);
 170
 171        ret = mmcif_mmc_init();
 172#endif
 173
 174#ifdef CONFIG_SH_SDHI
 175        gpio_request(GPIO_FN_SD0_DATA0, NULL);
 176        gpio_request(GPIO_FN_SD0_DATA1, NULL);
 177        gpio_request(GPIO_FN_SD0_DATA2, NULL);
 178        gpio_request(GPIO_FN_SD0_DATA3, NULL);
 179        gpio_request(GPIO_FN_SD0_CLK, NULL);
 180        gpio_request(GPIO_FN_SD0_CMD, NULL);
 181        gpio_request(GPIO_FN_SD0_CD, NULL);
 182        gpio_request(GPIO_FN_SD1_DATA0, NULL);
 183        gpio_request(GPIO_FN_SD1_DATA1, NULL);
 184        gpio_request(GPIO_FN_SD1_DATA2, NULL);
 185        gpio_request(GPIO_FN_SD1_DATA3, NULL);
 186        gpio_request(GPIO_FN_SD1_CLK, NULL);
 187        gpio_request(GPIO_FN_SD1_CMD, NULL);
 188        gpio_request(GPIO_FN_SD1_CD, NULL);
 189
 190        /* SDHI 0 */
 191        gpio_request(GPIO_GP_2_26, NULL);
 192        gpio_request(GPIO_GP_2_29, NULL);
 193        gpio_direction_output(GPIO_GP_2_26, 1);
 194        gpio_direction_output(GPIO_GP_2_29, 1);
 195
 196        ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI0_BASE, 0,
 197                           SH_SDHI_QUIRK_16BIT_BUF);
 198        if (ret)
 199                return ret;
 200
 201        /* SDHI 1 */
 202        gpio_request(GPIO_GP_4_26, NULL);
 203        gpio_request(GPIO_GP_4_29, NULL);
 204        gpio_direction_output(GPIO_GP_4_26, 1);
 205        gpio_direction_output(GPIO_GP_4_29, 1);
 206
 207        ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI1_BASE, 1, 0);
 208#endif
 209        return ret;
 210}
 211
 212int dram_init(void)
 213{
 214        gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
 215
 216        return 0;
 217}
 218
 219const struct rmobile_sysinfo sysinfo = {
 220        CONFIG_ARCH_RMOBILE_BOARD_STRING
 221};
 222
 223void reset_cpu(ulong addr)
 224{
 225        u8 val;
 226
 227        i2c_set_bus_num(1); /* PowerIC connected to ch1 */
 228        i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
 229        val |= 0x02;
 230        i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
 231}
 232
 233static const struct sh_serial_platdata serial_platdata = {
 234        .base = SCIF2_BASE,
 235        .type = PORT_SCIF,
 236        .clk = 14745600,
 237        .clk_mode = EXT_CLK,
 238};
 239
 240U_BOOT_DEVICE(alt_serials) = {
 241        .name = "serial_sh",
 242        .platdata = &serial_platdata,
 243};
 244