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