summaryrefslogtreecommitdiffstats
path: root/drivers/serial/serial_omap.c
blob: e8d544f0da4f5aff81cd083f6b31ad0118fc5ed6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
/*
 * Copyright (c) 2014 Google, Inc
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <ns16550.h>
#include <serial.h>

DECLARE_GLOBAL_DATA_PTR;

#if CONFIG_IS_ENABLED(OF_CONTROL)
static const struct udevice_id omap_serial_ids[] = {
	{ .compatible = "ti,omap3-uart" },
	{ .compatible = "ti,omap4-uart" },
	{ }
};

static int omap_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 = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
				     "clock-frequency", -1);
	plat->reg_shift = 2;

	return 0;
}
#endif

U_BOOT_DRIVER(serial_omap_ns16550) = {
	.name	= "serial_omap",
	.id	= UCLASS_SERIAL,
	.of_match = of_match_ptr(omap_serial_ids),
	.ofdata_to_platdata = of_match_ptr(omap_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,
	.flags	= DM_FLAG_PRE_RELOC,
};
OpenPOWER on IntegriCloud