1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2019 Google LLC
4  * Written by Simon Glass <sjg@chromium.org>
5  */
6 
7 #include <dm.h>
8 #include <clk-uclass.h>
9 #include <dt-bindings/clock/intel-clock.h>
10 
intel_clk_get_rate(struct clk * clk)11 static ulong intel_clk_get_rate(struct clk *clk)
12 {
13 	switch (clk->id) {
14 	case CLK_I2C:
15 		/* Hard-coded to 133MHz on current platforms */
16 		return 133333333;
17 	default:
18 		return -ENODEV;
19 	}
20 }
21 
22 static struct clk_ops intel_clk_ops = {
23 	.get_rate	= intel_clk_get_rate,
24 };
25 
26 static const struct udevice_id intel_clk_ids[] = {
27 	{ .compatible = "intel,apl-clk" },
28 	{ }
29 };
30 
31 U_BOOT_DRIVER(intel_apl_clk) = {
32 	.name		= "intel_apl_clk",
33 	.id		= UCLASS_CLK,
34 	.of_match	= intel_clk_ids,
35 	.ops		= &intel_clk_ops,
36 };
37