board/intercontrol/digsy_mtc/cmd_disp.c

   1 /*
   2  * (C) Copyright 2011 DENX Software Engineering,
   3  * Anatolij Gustschin <agust@denx.de>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <mpc5xxx.h>
  11 #include <asm/io.h>
  12
  13 #define GPIO_USB1_0     0x00010000
  14
  15 static int cmd_disp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  16 {
  17         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
  18
  19         if (argc < 2) {
  20                 printf("%s\n",
  21                        in_be32(&gpio->simple_dvo) & GPIO_USB1_0 ? "on" : "off");
  22                 return 0;
  23         }
  24
  25         if (!strncmp(argv[1], "on", 2)) {
  26                 setbits_be32(&gpio->simple_dvo, GPIO_USB1_0);
  27         } else if (!strncmp(argv[1], "off", 3)) {
  28                 clrbits_be32(&gpio->simple_dvo, GPIO_USB1_0);
  29         } else {
  30                 cmd_usage(cmdtp);
  31                 return 1;
  32         }
  33         return 0;
  34 }
  35
  36 U_BOOT_CMD(disp, 2, 1, cmd_disp,
  37                 "disp [on/off] - switch display on/off",
  38                 "\n    - print display on/off status\n"
  39                 "on\n    - turn on\n"
  40                 "off\n    - turn off\n"
  41 );