board/tqc/tqm5200/cmd_tb5200.c

   1 /*
   2  * (C) Copyright 2005 - 2006
   3  * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /*
   9  * TB5200 specific functions
  10  */
  11 /*#define DEBUG*/
  12
  13 #include <common.h>
  14 #include <command.h>
  15
  16 #if defined(CONFIG_CMD_BSP)
  17 #if defined (CONFIG_TB5200)
  18
  19 #define SM501_PANEL_DISPLAY_CONTROL     0x00080000UL
  20
  21 static void led_init(void)
  22 {
  23         struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
  24
  25         /* configure timer 4 for simple GPIO output */
  26         gpt->gpt4.emsr |=  0x00000024;
  27 }
  28
  29 int cmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  30 {
  31         struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
  32
  33         led_init();
  34
  35         if (strcmp (argv[1], "on") == 0) {
  36                 debug ("switch status LED on\n");
  37                 gpt->gpt4.emsr |=  (1 << 4);
  38         } else if (strcmp (argv[1], "off") == 0) {
  39                 debug ("switch status LED off\n");
  40                 gpt->gpt4.emsr &=  ~(1 << 4);
  41         } else {
  42                 printf ("Usage:\nled on/off\n");
  43                 return 1;
  44         }
  45
  46         return 0;
  47 }
  48
  49 static void sm501_backlight (unsigned int state)
  50 {
  51         if (state == 1) {
  52                 *(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) |=
  53                         (1 << 26) | (1 << 27);
  54         } else if (state == 0)
  55                 *(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) &=
  56                         ~((1 << 26) | (1 << 27));
  57 }
  58
  59 int cmd_backlight(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  60 {
  61         if (strcmp (argv[1], "on") == 0) {
  62                 debug ("switch backlight on\n");
  63                 sm501_backlight (1);
  64         } else if (strcmp (argv[1], "off") == 0) {
  65                 debug ("switch backlight off\n");
  66                 sm501_backlight (0);
  67         } else {
  68                 printf ("Usage:\nbacklight on/off\n");
  69                 return 1;
  70         }
  71
  72         return 0;
  73 }
  74
  75 U_BOOT_CMD(
  76         led ,   2,      1,      cmd_led,
  77         "switch status LED on or off",
  78         "on/off"
  79 );
  80
  81 U_BOOT_CMD(
  82         backlight ,     2,      1,      cmd_backlight,
  83         "switch backlight on or off",
  84         "on/off"
  85         );
  86
  87 #endif /* CONFIG_STK52XX */
  88 #endif