Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / arch / arm / imx-common / cmd_hdmidet.c

diff --git a/arch/arm/imx-common/cmd_hdmidet.c b/arch/arm/imx-common/cmd_hdmidet.c
new file mode 100644 (file)
index 0000000..d6ec7c4
--- /dev/null
+++ b/arch/arm/imx-common/cmd_hdmidet.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 Boundary Devices Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+#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",
+       ""
+);