board/xilinx/versal/board.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2014 - 2018 Xilinx, Inc.
   4  * Michal Simek <michal.simek@xilinx.com>
   5  */
   6
   7 #include <common.h>
   8 #include <fdtdec.h>
   9 #include <init.h>
  10 #include <malloc.h>
  11 #include <time.h>
  12 #include <asm/io.h>
  13 #include <asm/arch/hardware.h>
  14 #include <asm/arch/sys_proto.h>
  15 #include <dm/device.h>
  16 #include <dm/uclass.h>
  17 #include <versalpl.h>
  18 #include <linux/sizes.h>
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 #if defined(CONFIG_FPGA_VERSALPL)
  23 static xilinx_desc versalpl = XILINX_VERSAL_DESC;
  24 #endif
  25
  26 int board_init(void)
  27 {
  28         printf("EL Level:\tEL%d\n", current_el());
  29
  30 #if defined(CONFIG_FPGA_VERSALPL)
  31         fpga_init();
  32         fpga_add(fpga_xilinx, &versalpl);
  33 #endif
  34
  35         return 0;
  36 }
  37
  38 int board_early_init_r(void)
  39 {
  40         u32 val;
  41
  42         if (current_el() != 3)
  43                 return 0;
  44
  45         debug("iou_switch ctrl div0 %x\n",
  46               readl(&crlapb_base->iou_switch_ctrl));
  47
  48         writel(IOU_SWITCH_CTRL_CLKACT_BIT |
  49                (CONFIG_IOU_SWITCH_DIVISOR0 << IOU_SWITCH_CTRL_DIVISOR0_SHIFT),
  50                &crlapb_base->iou_switch_ctrl);
  51
  52         /* Global timer init - Program time stamp reference clk */
  53         val = readl(&crlapb_base->timestamp_ref_ctrl);
  54         val |= CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT;
  55         writel(val, &crlapb_base->timestamp_ref_ctrl);
  56
  57         debug("ref ctrl 0x%x\n",
  58               readl(&crlapb_base->timestamp_ref_ctrl));
  59
  60         /* Clear reset of timestamp reg */
  61         writel(0, &crlapb_base->rst_timestamp);
  62
  63         /*
  64          * Program freq register in System counter and
  65          * enable system counter.
  66          */
  67         writel(COUNTER_FREQUENCY,
  68                &iou_scntr_secure->base_frequency_id_register);
  69
  70         debug("counter val 0x%x\n",
  71               readl(&iou_scntr_secure->base_frequency_id_register));
  72
  73         writel(IOU_SCNTRS_CONTROL_EN,
  74                &iou_scntr_secure->counter_control_register);
  75
  76         debug("scntrs control 0x%x\n",
  77               readl(&iou_scntr_secure->counter_control_register));
  78         debug("timer 0x%llx\n", get_ticks());
  79         debug("timer 0x%llx\n", get_ticks());
  80
  81         return 0;
  82 }
  83
  84 int board_late_init(void)
  85 {
  86         u32 reg = 0;
  87         u8 bootmode;
  88         struct udevice *dev;
  89         int bootseq = -1;
  90         int bootseq_len = 0;
  91         int env_targets_len = 0;
  92         const char *mode;
  93         char *new_targets;
  94         char *env_targets;
  95         ulong initrd_hi;
  96
  97         if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
  98                 debug("Saved variables - Skipping\n");
  99                 return 0;
 100         }
 101
 102         reg = readl(&crp_base->boot_mode_usr);
 103
 104         if (reg >> BOOT_MODE_ALT_SHIFT)
 105                 reg >>= BOOT_MODE_ALT_SHIFT;
 106
 107         bootmode = reg & BOOT_MODES_MASK;
 108
 109         puts("Bootmode: ");
 110         switch (bootmode) {
 111         case USB_MODE:
 112                 puts("USB_MODE\n");
 113                 mode = "dfu_usb";
 114                 break;
 115         case JTAG_MODE:
 116                 puts("JTAG_MODE\n");
 117                 mode = "jtag pxe dhcp";
 118                 break;
 119         case QSPI_MODE_24BIT:
 120                 puts("QSPI_MODE_24\n");
 121                 mode = "xspi0";
 122                 break;
 123         case QSPI_MODE_32BIT:
 124                 puts("QSPI_MODE_32\n");
 125                 mode = "xspi0";
 126                 break;
 127         case OSPI_MODE:
 128                 puts("OSPI_MODE\n");
 129                 mode = "xspi0";
 130                 break;
 131         case EMMC_MODE:
 132                 puts("EMMC_MODE\n");
 133                 mode = "mmc0";
 134                 break;
 135         case SD_MODE:
 136                 puts("SD_MODE\n");
 137                 if (uclass_get_device_by_name(UCLASS_MMC,
 138                                               "sdhci@f1040000", &dev)) {
 139                         puts("Boot from SD0 but without SD0 enabled!\n");
 140                         return -1;
 141                 }
 142                 debug("mmc0 device found at %p, seq %d\n", dev, dev->seq);
 143
 144                 mode = "mmc";
 145                 bootseq = dev->seq;
 146                 break;
 147         case SD1_LSHFT_MODE:
 148                 puts("LVL_SHFT_");
 149                 /* fall through */
 150         case SD_MODE1:
 151                 puts("SD_MODE1\n");
 152                 if (uclass_get_device_by_name(UCLASS_MMC,
 153                                               "sdhci@f1050000", &dev)) {
 154                         puts("Boot from SD1 but without SD1 enabled!\n");
 155                         return -1;
 156                 }
 157                 debug("mmc1 device found at %p, seq %d\n", dev, dev->seq);
 158
 159                 mode = "mmc";
 160                 bootseq = dev->seq;
 161                 break;
 162         default:
 163                 mode = "";
 164                 printf("Invalid Boot Mode:0x%x\n", bootmode);
 165                 break;
 166         }
 167
 168         if (bootseq >= 0) {
 169                 bootseq_len = snprintf(NULL, 0, "%i", bootseq);
 170                 debug("Bootseq len: %x\n", bootseq_len);
 171         }
 172
 173         /*
 174          * One terminating char + one byte for space between mode
 175          * and default boot_targets
 176          */
 177         env_targets = env_get("boot_targets");
 178         if (env_targets)
 179                 env_targets_len = strlen(env_targets);
 180
 181         new_targets = calloc(1, strlen(mode) + env_targets_len + 2 +
 182                              bootseq_len);
 183         if (!new_targets)
 184                 return -ENOMEM;
 185
 186         if (bootseq >= 0)
 187                 sprintf(new_targets, "%s%x %s", mode, bootseq,
 188                         env_targets ? env_targets : "");
 189         else
 190                 sprintf(new_targets, "%s %s", mode,
 191                         env_targets ? env_targets : "");
 192
 193         env_set("boot_targets", new_targets);
 194
 195         initrd_hi = gd->start_addr_sp - CONFIG_STACK_SIZE;
 196         initrd_hi = round_down(initrd_hi, SZ_16M);
 197         env_set_addr("initrd_high", (void *)initrd_hi);
 198
 199         return 0;
 200 }
 201
 202 int dram_init_banksize(void)
 203 {
 204         int ret;
 205
 206         ret = fdtdec_setup_memory_banksize();
 207         if (ret)
 208                 return ret;
 209
 210         mem_map_fill();
 211
 212         return 0;
 213 }
 214
 215 int dram_init(void)
 216 {
 217         if (fdtdec_setup_mem_size_base() != 0)
 218                 return -EINVAL;
 219
 220         return 0;
 221 }
 222
 223 void reset_cpu(ulong addr)
 224 {
 225 }