1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/video/bochs/bochs_isa.c b/drivers/video/bochs/bochs_isa.c
new file mode 100644
index 0000000000..f273ac5f74
--- /dev/null
+++ b/drivers/video/bochs/bochs_isa.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// SPDX-FileCopyrightText: Copyright (c) 2020 Ahmad Fatoum, Pengutronix
+/*
+ *  ISA driver entry point for VGA with the Bochs VBE / QEMU stdvga extensions.
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <linux/ioport.h>
+#include "bochs_hw.h"
+
+static int bochs_isa_detect(void)
+{
+	struct device_d *dev;
+	int ret;
+
+	outw(0, VBE_DISPI_IOPORT_INDEX);
+	ret = inw(VBE_DISPI_IOPORT_DATA);
+
+	if ((ret & 0xB0C0) != 0xB0C0)
+		return -ENODEV;
+
+	dev = device_alloc("bochs-dispi", 0);
+
+	ret = platform_device_register(dev);
+	if (ret)
+		return ret;
+
+	return bochs_hw_probe(dev, (void *)0xe0000000, NULL);
+}
+device_initcall(bochs_isa_detect);