| Eric Nelson | b94cfae | 2013-03-09 07:06:09 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2012 Boundary Devices Inc. |
| 3 | * |
| 4 | * See file CREDITS for list of people who contributed to this |
| 5 | * project. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; either version 2 of |
| 10 | * the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 20 | * MA 02111-1307 USA |
| 21 | */ |
| 22 | #include <common.h> |
| 23 | #include <asm/arch/imx-regs.h> |
| 24 | #include <asm/arch/mxc_hdmi.h> |
| 25 | #include <asm/io.h> |
| 26 | |
| 27 | static int do_hdmidet(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| 28 | { |
| 29 | struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR; |
| 30 | u8 reg = readb(&hdmi->phy_stat0) & HDMI_PHY_HPD; |
| 31 | return (reg&HDMI_PHY_HPD) ? 0 : 1; |
| 32 | } |
| 33 | |
| 34 | U_BOOT_CMD(hdmidet, 1, 1, do_hdmidet, |
| 35 | "detect HDMI monitor", |
| 36 | "" |
| 37 | ); |