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| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2013-03-09 07:06:09 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-03-20 11:43:19 +0100 |
| commit | 99e2dc59cb6c1e73e639f3be60170a72119d6e30 (patch) | |
| tree | 31eff28dc1ca1244983d661a230beae28ef47c1e | |
| parent | a49db3df76619022ddbf03ea16d715cebd57cf1b (diff) | |
| download | u-boot-imx-99e2dc59cb6c1e73e639f3be60170a72119d6e30.zip u-boot-imx-99e2dc59cb6c1e73e639f3be60170a72119d6e30.tar.gz u-boot-imx-99e2dc59cb6c1e73e639f3be60170a72119d6e30.tar.bz2 | |
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>
| -rw-r--r-- | arch/arm/imx-common/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/imx-common/cmd_hdmidet.c | 37 |
2 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile index 6309fcd..428a57e 100644 --- a/arch/arm/imx-common/Makefile +++ b/arch/arm/imx-common/Makefile @@ -32,6 +32,7 @@ COBJS-y = iomux-v3.o timer.o cpu.o speed.o COBJS-$(CONFIG_I2C_MXC) += i2c-mxv7.o endif COBJS-$(CONFIG_CMD_BMODE) += cmd_bmode.o +COBJS-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o COBJS := $(sort $(COBJS-y)) SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/arch/arm/imx-common/cmd_hdmidet.c b/arch/arm/imx-common/cmd_hdmidet.c new file mode 100644 index 0000000..794bf50 --- /dev/null +++ b/arch/arm/imx-common/cmd_hdmidet.c @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2012 Boundary Devices Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/mxc_hdmi.h> +#include <asm/io.h> + +static int do_hdmidet(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR; + u8 reg = readb(&hdmi->phy_stat0) & HDMI_PHY_HPD; + return (reg&HDMI_PHY_HPD) ? 0 : 1; +} + +U_BOOT_CMD(hdmidet, 1, 1, do_hdmidet, + "detect HDMI monitor", + "" +); |