cmd/mvebu/comphy_rx_training.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2017 Marvell International Ltd.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <console.h>
  11 #include <dm.h>
  12 #include <fdtdec.h>
  13 #include <dm/device-internal.h>
  14 #include <mvebu/comphy.h>
  15
  16 int mvebu_comphy_rx_training_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
  17                                  char * const argv[])
  18 {
  19         struct udevice *dev;
  20         struct uclass *uc;
  21         int ret, cp_index, comphy_index, i = 0;
  22
  23         if (argc != 3) {
  24                 printf("missing arguments\n");
  25                 return -1;
  26         }
  27
  28         cp_index = hextoul(argv[1], NULL);
  29         comphy_index = hextoul(argv[2], NULL);
  30
  31         ret = uclass_get(UCLASS_MISC, &uc);
  32         if (ret) {
  33                 printf("Couldn't find UCLASS_MISC\n");
  34                 return ret;
  35         }
  36
  37         uclass_foreach_dev(dev, uc) {
  38                 if (!(memcmp(dev->name, "comphy", 5))) {
  39                         if (i == cp_index) {
  40                                 comphy_rx_training(dev, comphy_index);
  41                                 return 0;
  42                         }
  43
  44                         i++;
  45                 }
  46         }
  47
  48         printf("Coudn't find comphy %d\n", cp_index);
  49
  50         return 0;
  51 }
  52
  53 U_BOOT_CMD(
  54         mvebu_comphy_rx_training, 3, 0, mvebu_comphy_rx_training_cmd,
  55         "mvebu_comphy_rx_training <cp id> <comphy id>\n",
  56         "\n\tRun COMPHY RX training sequence, the user must state CP index (0/1) and comphy ID (0/5)"
  57 );