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

   1 /*
   2  * board/renesas/salvator-x/salvator-x.c
   3  *     This file is Salvator-X/Salvator-XS board support.
   4  *
   5  * Copyright (C) 2015-2017 Renesas Electronics Corporation
   6  * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
   7  *
   8  * SPDX-License-Identifier: GPL-2.0+
   9  */
  10
  11 #include <common.h>
  12 #include <malloc.h>
  13 #include <netdev.h>
  14 #include <dm.h>
  15 #include <dm/platform_data/serial_sh.h>
  16 #include <asm/processor.h>
  17 #include <asm/mach-types.h>
  18 #include <asm/io.h>
  19 #include <linux/errno.h>
  20 #include <asm/arch/sys_proto.h>
  21 #include <asm/gpio.h>
  22 #include <asm/arch/gpio.h>
  23 #include <asm/arch/rmobile.h>
  24 #include <asm/arch/rcar-mstp.h>
  25 #include <asm/arch/sh_sdhi.h>
  26 #include <i2c.h>
  27 #include <mmc.h>
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30
  31 #define CPGWPCR 0xE6150904
  32 #define CPGWPR  0xE615090C
  33
  34 #define CLK2MHZ(clk)    (clk / 1000 / 1000)
  35 void s_init(void)
  36 {
  37         struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
  38         struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
  39
  40         /* Watchdog init */
  41         writel(0xA5A5A500, &rwdt->rwtcsra);
  42         writel(0xA5A5A500, &swdt->swtcsra);
  43
  44         writel(0xA5A50000, CPGWPCR);
  45         writel(0xFFFFFFFF, CPGWPR);
  46 }
  47
  48 #define GSX_MSTP112             BIT(12) /* 3DG */
  49 #define TMU0_MSTP125            BIT(25) /* secure */
  50 #define TMU1_MSTP124            BIT(24) /* non-secure */
  51 #define SCIF2_MSTP310           BIT(10) /* SCIF2 */
  52 #define ETHERAVB_MSTP812        BIT(12)
  53 #define DVFS_MSTP926            BIT(26)
  54 #define SD0_MSTP314             BIT(14)
  55 #define SD1_MSTP313             BIT(13)
  56 #define SD2_MSTP312             BIT(12) /* either MMC0 */
  57 #define SD3_MSTP311             BIT(11) /* either MMC1 */
  58
  59 #define SD0CKCR                 0xE6150074
  60 #define SD1CKCR                 0xE6150078
  61 #define SD2CKCR                 0xE6150268
  62 #define SD3CKCR                 0xE615026C
  63
  64 int board_early_init_f(void)
  65 {
  66         /* TMU0,1 */            /* which use ? */
  67         mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125 | TMU1_MSTP124);
  68         /* SCIF2 */
  69         mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SCIF2_MSTP310);
  70         /* EHTERAVB */
  71         mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHERAVB_MSTP812);
  72         /* eMMC */
  73         mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SD1_MSTP313 | SD2_MSTP312);
  74         /* SDHI0, 3 */
  75         mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SD0_MSTP314 | SD3_MSTP311);
  76
  77         writel(0, SD0CKCR);
  78         writel(0, SD1CKCR);
  79         writel(0, SD2CKCR);
  80         writel(0, SD3CKCR);
  81
  82 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
  83         /* DVFS for reset */
  84         mstp_clrbits_le32(MSTPSR9, SMSTPCR9, DVFS_MSTP926);
  85 #endif
  86         return 0;
  87 }
  88
  89 /* SYSC */
  90 /* R/- 32 Power status register 2(3DG) */
  91 #define SYSC_PWRSR2     0xE6180100
  92 /* -/W 32 Power resume control register 2 (3DG) */
  93 #define SYSC_PWRONCR2   0xE618010C
  94
  95 int board_init(void)
  96 {
  97         /* adress of boot parameters */
  98         gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000;
  99
 100         /* Init PFC controller */
 101 #if defined(CONFIG_R8A7795)
 102         r8a7795_pinmux_init();
 103 #elif defined(CONFIG_R8A7796)
 104         r8a7796_pinmux_init();
 105 #endif
 106
 107 #if defined(CONFIG_R8A7795)
 108         /* GSX: force power and clock supply */
 109         writel(0x0000001F, SYSC_PWRONCR2);
 110         while (readl(SYSC_PWRSR2) != 0x000003E0)
 111                 mdelay(20);
 112
 113         mstp_clrbits_le32(MSTPSR1, SMSTPCR1, GSX_MSTP112);
 114 #endif
 115
 116         /* USB1 pull-up */
 117         setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
 118
 119 #ifdef CONFIG_RAVB
 120         /* EtherAVB Enable */
 121         /* GPSR2 */
 122         gpio_request(GPIO_GFN_AVB_AVTP_CAPTURE_A, NULL);
 123         gpio_request(GPIO_GFN_AVB_AVTP_MATCH_A, NULL);
 124         gpio_request(GPIO_GFN_AVB_LINK, NULL);
 125         gpio_request(GPIO_GFN_AVB_PHY_INT, NULL);
 126         gpio_request(GPIO_GFN_AVB_MAGIC, NULL);
 127         gpio_request(GPIO_GFN_AVB_MDC, NULL);
 128
 129         /* IPSR0 */
 130         gpio_request(GPIO_IFN_AVB_MDC, NULL);
 131         gpio_request(GPIO_IFN_AVB_MAGIC, NULL);
 132         gpio_request(GPIO_IFN_AVB_PHY_INT, NULL);
 133         gpio_request(GPIO_IFN_AVB_LINK, NULL);
 134         gpio_request(GPIO_IFN_AVB_AVTP_MATCH_A, NULL);
 135         gpio_request(GPIO_IFN_AVB_AVTP_CAPTURE_A, NULL);
 136         /* IPSR1 */
 137         gpio_request(GPIO_FN_AVB_AVTP_PPS, NULL);
 138         /* IPSR2 */
 139         gpio_request(GPIO_FN_AVB_AVTP_MATCH_B, NULL);
 140         /* IPSR3 */
 141         gpio_request(GPIO_FN_AVB_AVTP_CAPTURE_B, NULL);
 142
 143 #if defined(CONFIG_R8A7795)
 144         /* USB2_OVC */
 145         gpio_request(GPIO_GP_6_15, NULL);
 146         gpio_direction_input(GPIO_GP_6_15);
 147
 148         /* USB2_PWEN */
 149         gpio_request(GPIO_GP_6_14, NULL);
 150         gpio_direction_output(GPIO_GP_6_14, 1);
 151         gpio_set_value(GPIO_GP_6_14, 1);
 152 #endif
 153         /* AVB_PHY_RST */
 154         gpio_request(GPIO_GP_2_10, NULL);
 155         gpio_direction_output(GPIO_GP_2_10, 0);
 156         mdelay(20);
 157         gpio_set_value(GPIO_GP_2_10, 1);
 158         udelay(1);
 159 #endif
 160
 161         return 0;
 162 }
 163
 164 #ifdef CONFIG_SH_SDHI
 165 int board_mmc_init(bd_t *bis)
 166 {
 167         int ret = -ENODEV;
 168
 169         /* SDHI0 */
 170         gpio_request(GPIO_GFN_SD0_DAT0, NULL);
 171         gpio_request(GPIO_GFN_SD0_DAT1, NULL);
 172         gpio_request(GPIO_GFN_SD0_DAT2, NULL);
 173         gpio_request(GPIO_GFN_SD0_DAT3, NULL);
 174         gpio_request(GPIO_GFN_SD0_CLK, NULL);
 175         gpio_request(GPIO_GFN_SD0_CMD, NULL);
 176         gpio_request(GPIO_GFN_SD0_CD, NULL);
 177         gpio_request(GPIO_GFN_SD0_WP, NULL);
 178
 179         gpio_request(GPIO_GP_5_2, NULL);
 180         gpio_request(GPIO_GP_5_1, NULL);
 181         gpio_direction_output(GPIO_GP_5_2, 1);  /* power on */
 182         gpio_direction_output(GPIO_GP_5_1, 1);  /* 1: 3.3V, 0: 1.8V */
 183
 184         ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI0_BASE, 0,
 185                            SH_SDHI_QUIRK_64BIT_BUF);
 186         if (ret)
 187                 return ret;
 188
 189         /* SDHI1/SDHI2 eMMC */
 190         gpio_request(GPIO_GFN_SD1_DAT0, NULL);
 191         gpio_request(GPIO_GFN_SD1_DAT1, NULL);
 192         gpio_request(GPIO_GFN_SD1_DAT2, NULL);
 193         gpio_request(GPIO_GFN_SD1_DAT3, NULL);
 194         gpio_request(GPIO_GFN_SD2_DAT0, NULL);
 195         gpio_request(GPIO_GFN_SD2_DAT1, NULL);
 196         gpio_request(GPIO_GFN_SD2_DAT2, NULL);
 197         gpio_request(GPIO_GFN_SD2_DAT3, NULL);
 198         gpio_request(GPIO_GFN_SD2_CLK, NULL);
 199 #if defined(CONFIG_R8A7795)
 200         gpio_request(GPIO_GFN_SD2_CMD, NULL);
 201 #elif defined(CONFIG_R8A7796)
 202         gpio_request(GPIO_FN_SD2_CMD, NULL);
 203 #else
 204 #error Only R8A7795 and R87796 is supported
 205 #endif
 206         gpio_request(GPIO_GP_5_3, NULL);
 207         gpio_request(GPIO_GP_5_9, NULL);
 208         gpio_direction_output(GPIO_GP_5_3, 0);  /* 1: 3.3V, 0: 1.8V */
 209         gpio_direction_output(GPIO_GP_5_9, 0);  /* 1: 3.3V, 0: 1.8V */
 210
 211         ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI2_BASE, 1,
 212                            SH_SDHI_QUIRK_64BIT_BUF);
 213         if (ret)
 214                 return ret;
 215
 216 #if defined(CONFIG_R8A7795)
 217         /* SDHI3 */
 218         gpio_request(GPIO_GFN_SD3_DAT0, NULL);  /* GP_4_9 */
 219         gpio_request(GPIO_GFN_SD3_DAT1, NULL);  /* GP_4_10 */
 220         gpio_request(GPIO_GFN_SD3_DAT2, NULL);  /* GP_4_11 */
 221         gpio_request(GPIO_GFN_SD3_DAT3, NULL);  /* GP_4_12 */
 222         gpio_request(GPIO_GFN_SD3_CLK, NULL);   /* GP_4_7 */
 223         gpio_request(GPIO_GFN_SD3_CMD, NULL);   /* GP_4_8 */
 224 #elif defined(CONFIG_R8A7796)
 225         gpio_request(GPIO_FN_SD3_DAT0, NULL);   /* GP_4_9 */
 226         gpio_request(GPIO_FN_SD3_DAT1, NULL);   /* GP_4_10 */
 227         gpio_request(GPIO_FN_SD3_DAT2, NULL);   /* GP_4_11 */
 228         gpio_request(GPIO_FN_SD3_DAT3, NULL);   /* GP_4_12 */
 229         gpio_request(GPIO_FN_SD3_CLK, NULL);    /* GP_4_7 */
 230         gpio_request(GPIO_FN_SD3_CMD, NULL);    /* GP_4_8 */
 231 #else
 232 #error Only R8A7795 and R87796 is supported
 233 #endif
 234         /* IPSR10 */
 235         gpio_request(GPIO_FN_SD3_CD, NULL);
 236         gpio_request(GPIO_FN_SD3_WP, NULL);
 237
 238         gpio_request(GPIO_GP_3_15, NULL);
 239         gpio_request(GPIO_GP_3_14, NULL);
 240         gpio_direction_output(GPIO_GP_3_15, 1); /* power on */
 241         gpio_direction_output(GPIO_GP_3_14, 1); /* 1: 3.3V, 0: 1.8V */
 242
 243         ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI3_BASE, 2,
 244                            SH_SDHI_QUIRK_64BIT_BUF);
 245         return ret;
 246 }
 247 #endif
 248
 249 int dram_init(void)
 250 {
 251         gd->ram_size = PHYS_SDRAM_1_SIZE;
 252 #if (CONFIG_NR_DRAM_BANKS >= 2)
 253         gd->ram_size += PHYS_SDRAM_2_SIZE;
 254 #endif
 255 #if (CONFIG_NR_DRAM_BANKS >= 3)
 256         gd->ram_size += PHYS_SDRAM_3_SIZE;
 257 #endif
 258 #if (CONFIG_NR_DRAM_BANKS >= 4)
 259         gd->ram_size += PHYS_SDRAM_4_SIZE;
 260 #endif
 261
 262         return 0;
 263 }
 264
 265 int dram_init_banksize(void)
 266 {
 267         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 268         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
 269 #if (CONFIG_NR_DRAM_BANKS >= 2)
 270         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 271         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
 272 #endif
 273 #if (CONFIG_NR_DRAM_BANKS >= 3)
 274         gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
 275         gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
 276 #endif
 277 #if (CONFIG_NR_DRAM_BANKS >= 4)
 278         gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
 279         gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
 280 #endif
 281         return 0;
 282 }
 283
 284 const struct rmobile_sysinfo sysinfo = {
 285         CONFIG_RCAR_BOARD_STRING
 286 };
 287
 288 #define RST_BASE        0xE6160000
 289 #define RST_CA57RESCNT  (RST_BASE + 0x40)
 290 #define RST_CA53RESCNT  (RST_BASE + 0x44)
 291 #define RST_RSTOUTCR    (RST_BASE + 0x58)
 292 #define RST_CODE        0xA5A5000F
 293
 294 void reset_cpu(ulong addr)
 295 {
 296 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
 297         i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
 298 #else
 299         /* only CA57 ? */
 300         writel(RST_CODE, RST_CA57RESCNT);
 301 #endif
 302 }
 303
 304 static const struct sh_serial_platdata serial_platdata = {
 305         .base = SCIF2_BASE,
 306         .type = PORT_SCIF,
 307         .clk = CONFIG_SH_SCIF_CLK_FREQ,
 308         .clk_mode = INT_CLK,
 309 };
 310
 311 U_BOOT_DEVICE(salvator_x_scif2) = {
 312         .name = "serial_sh",
 313         .platdata = &serial_platdata,
 314 };