1 /*
2  * Copyright (c) 2015 Google, Inc
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <dm.h>
9 #include <ns16550.h>
10 #include <serial.h>
11 #include <asm/arch/clock.h>
12 
13 static const struct udevice_id rockchip_serial_ids[] = {
14 	{ .compatible = "rockchip,rk3288-uart" },
15 	{ }
16 };
17 
18 static int rockchip_serial_ofdata_to_platdata(struct udevice *dev)
19 {
20 	struct ns16550_platdata *plat = dev_get_platdata(dev);
21 	int ret;
22 
23 	ret = ns16550_serial_ofdata_to_platdata(dev);
24 	if (ret)
25 		return ret;
26 
27 	/* Do all Rockchip parts use 24MHz? */
28 	plat->clock = 24 * 1000000;
29 
30 	return 0;
31 }
32 
33 U_BOOT_DRIVER(serial_ns16550) = {
34 	.name	= "serial_rockchip",
35 	.id	= UCLASS_SERIAL,
36 	.of_match = rockchip_serial_ids,
37 	.ofdata_to_platdata = rockchip_serial_ofdata_to_platdata,
38 	.platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
39 	.priv_auto_alloc_size = sizeof(struct NS16550),
40 	.probe = ns16550_serial_probe,
41 	.ops	= &ns16550_serial_ops,
42 	.flags	= DM_FLAG_PRE_RELOC,
43 };
44