dm: x86: Convert coreboot serial to use driver model

This makes use of the existing device tree node to use driver model
for the serial console.

Signed-off-by: Simon Glass <sjg@chromium.org>

2 files changed, 39 insertions, 0 deletions

diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index cd87d18cf7..2c19ebc288 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_ARC_SERIAL) += serial_arc.o
 obj-$(CONFIG_TEGRA_SERIAL) += serial_tegra.o
 obj-$(CONFIG_UNIPHIER_SERIAL) += serial_uniphier.o
 obj-$(CONFIG_OMAP_SERIAL) += serial_omap.o
+obj-$(CONFIG_COREBOOT_SERIAL) += serial_coreboot.o
 
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_USB_TTY) += usbtty.o
diff --git a/drivers/serial/serial_coreboot.c b/drivers/serial/serial_coreboot.c
new file mode 100644
index 0000000000..5c6a76c59c
--- /dev/null
+++ b/drivers/serial/serial_coreboot.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <ns16550.h>
+#include <serial.h>
+
+static const struct udevice_id coreboot_serial_ids[] = {
+	{ .compatible = "coreboot-uart" },
+	{ }
+};
+
+static int coreboot_serial_ofdata_to_platdata(struct udevice *dev)
+{
+	struct ns16550_platdata *plat = dev_get_platdata(dev);
+	int ret;
+
+	ret = ns16550_serial_ofdata_to_platdata(dev);
+	if (ret)
+		return ret;
+	plat->clock = 1843200;
+
+	return 0;
+}
+U_BOOT_DRIVER(serial_ns16550) = {
+	.name	= "serial_coreboot",
+	.id	= UCLASS_SERIAL,
+	.of_match = coreboot_serial_ids,
+	.ofdata_to_platdata = coreboot_serial_ofdata_to_platdata,
+	.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
+	.priv_auto_alloc_size = sizeof(struct NS16550),
+	.probe = ns16550_serial_probe,
+	.ops	= &ns16550_serial_ops,
+};