xref: /openbmc/u-boot/drivers/clk/at91/clk-master.c (revision cf0bcd7d) 
1 /*
2  * Copyright (C) 2016 Atmel Corporation
3  *               Wenyou.Yang <wenyou.yang@atmel.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <clk-uclass.h>
10 #include <dm.h>
11 
12 DECLARE_GLOBAL_DATA_PTR;
13 
14 static ulong at91_master_clk_get_rate(struct clk *clk)
15 {
16 	return gd->arch.mck_rate_hz;
17 }
18 
19 static struct clk_ops at91_master_clk_ops = {
20 	.get_rate = at91_master_clk_get_rate,
21 };
22 
23 static const struct udevice_id at91_master_clk_match[] = {
24 	{ .compatible = "atmel,at91rm9200-clk-master" },
25 	{ .compatible = "atmel,at91sam9x5-clk-master" },
26 	{}
27 };
28 
29 U_BOOT_DRIVER(at91_master_clk) = {
30 	.name = "at91-master-clk",
31 	.id = UCLASS_CLK,
32 	.of_match = at91_master_clk_match,
33 	.ops = &at91_master_clk_ops,
34 };
35