board/tqc/tqm5200/cmd_tb5200.c

   1 /*
   2  * (C) Copyright 2005 - 2006
   3  * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * TB5200 specific functions
  26  */
  27 /*#define DEBUG*/
  28
  29 #include <common.h>
  30 #include <command.h>
  31
  32 #if defined(CONFIG_CMD_BSP)
  33 #if defined (CONFIG_TB5200)
  34
  35 #define SM501_PANEL_DISPLAY_CONTROL     0x00080000UL
  36
  37 static void led_init(void)
  38 {
  39         struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
  40
  41         /* configure timer 4 for simple GPIO output */
  42         gpt->gpt4.emsr |=  0x00000024;
  43 }
  44
  45 int cmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  46 {
  47         struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
  48
  49         led_init();
  50
  51         if (strcmp (argv[1], "on") == 0) {
  52                 debug ("switch status LED on\n");
  53                 gpt->gpt4.emsr |=  (1 << 4);
  54         } else if (strcmp (argv[1], "off") == 0) {
  55                 debug ("switch status LED off\n");
  56                 gpt->gpt4.emsr &=  ~(1 << 4);
  57         } else {
  58                 printf ("Usage:\nled on/off\n");
  59                 return 1;
  60         }
  61
  62         return 0;
  63 }
  64
  65 static void sm501_backlight (unsigned int state)
  66 {
  67         if (state == 1) {
  68                 *(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) |=
  69                         (1 << 26) | (1 << 27);
  70         } else if (state == 0)
  71                 *(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) &=
  72                         ~((1 << 26) | (1 << 27));
  73 }
  74
  75 int cmd_backlight(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  76 {
  77         if (strcmp (argv[1], "on") == 0) {
  78                 debug ("switch backlight on\n");
  79                 sm501_backlight (1);
  80         } else if (strcmp (argv[1], "off") == 0) {
  81                 debug ("switch backlight off\n");
  82                 sm501_backlight (0);
  83         } else {
  84                 printf ("Usage:\nbacklight on/off\n");
  85                 return 1;
  86         }
  87
  88         return 0;
  89 }
  90
  91 U_BOOT_CMD(
  92         led ,   2,      1,      cmd_led,
  93         "led     - switch status LED on or off\n",
  94         "on/off\n"
  95 );
  96
  97 U_BOOT_CMD(
  98         backlight ,     2,      1,      cmd_backlight,
  99         "backlight - switch backlight on or off\n",
 100         "on/off\n"
 101         );
 102
 103 #endif /* CONFIG_STK52XX */
 104 #endif