diff options
author | Tom Rini <trini@ti.com> | 2013-04-15 07:46:11 -0400 |
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committer | Tom Rini <trini@ti.com> | 2013-04-15 07:46:11 -0400 |
commit | 17059f972fa6768ebf15a575c00083b3a431b79a (patch) | |
tree | 30df6b88fa1dc57dada54f9a16ab1619cc4f3c52 /arch/arm/imx-common/cmd_hdmidet.c | |
parent | 277f037074fbb73be10a7bff27079b6eb0a3bfbb (diff) | |
parent | 8960af8ba9488fc54e2e4733cbada26d3cece225 (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'arch/arm/imx-common/cmd_hdmidet.c')
-rw-r--r-- | arch/arm/imx-common/cmd_hdmidet.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/imx-common/cmd_hdmidet.c b/arch/arm/imx-common/cmd_hdmidet.c new file mode 100644 index 00000000000..794bf50cb67 --- /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", + "" +); |