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git01.mediatek.com / filogic / uboot / a8695639f5effd0a305490edbfa4f17356a92f66 / . / arch / arm / mach-imx / cmd_hdmidet.c
blob: e2571adfb0062326549bd76fed46ca58673724c9 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Eric Nelsonb94cfae2013-03-09 07:06:09 +0000[diff] [blame]2/*
3 * Copyright (C) 2012 Boundary Devices Inc.
Eric Nelsonb94cfae2013-03-09 07:06:09 +0000[diff] [blame]4 */
5#include <common.h>
Simon Glassed38aef2020-05-10 11:40:03 -0600[diff] [blame]6#include <command.h>
Eric Nelsonb94cfae2013-03-09 07:06:09 +0000[diff] [blame]7#include <asm/arch/imx-regs.h>
8#include <asm/arch/mxc_hdmi.h>
9#include <asm/io.h>
10
Simon Glassed38aef2020-05-10 11:40:03 -0600[diff] [blame]11static int do_hdmidet(struct cmd_tbl *cmdtp, int flag, int argc,
12 char *const argv[])
Eric Nelsonb94cfae2013-03-09 07:06:09 +0000[diff] [blame]13{
14 struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
Robert Winklerc920df72013-07-23 15:07:56 -0700[diff] [blame]15 return (readb(&hdmi->phy_stat0) & HDMI_DVI_STAT) ? 0 : 1;
Eric Nelsonb94cfae2013-03-09 07:06:09 +0000[diff] [blame]16}
17
18U_BOOT_CMD(hdmidet, 1, 1, do_hdmidet,
19 "detect HDMI monitor",
20 ""
21);