i.MX6: Add hdmidet command to detect attached HDMI monitor
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com> Acked-by: Stefano Babic <sbabic@denx.de>
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@ -32,6 +32,7 @@ COBJS-y = iomux-v3.o timer.o cpu.o speed.o
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COBJS-$(CONFIG_I2C_MXC) += i2c-mxv7.o
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COBJS-$(CONFIG_I2C_MXC) += i2c-mxv7.o
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endif
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endif
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COBJS-$(CONFIG_CMD_BMODE) += cmd_bmode.o
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COBJS-$(CONFIG_CMD_BMODE) += cmd_bmode.o
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COBJS-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
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COBJS := $(sort $(COBJS-y))
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COBJS := $(sort $(COBJS-y))
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SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
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SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
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@ -0,0 +1,37 @@
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/*
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* Copyright (C) 2012 Boundary Devices Inc.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mxc_hdmi.h>
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#include <asm/io.h>
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static int do_hdmidet(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
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u8 reg = readb(&hdmi->phy_stat0) & HDMI_PHY_HPD;
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return (reg&HDMI_PHY_HPD) ? 0 : 1;
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}
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U_BOOT_CMD(hdmidet, 1, 1, do_hdmidet,
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"detect HDMI monitor",
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""
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);
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