1 /*
2 * Copyright 2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/errno.h>
19 #include <linux/clk.h>
20 #include <linux/clkdev.h>
21
22 struct clk {
23 unsigned long rate;
24 };
25
clk_enable(struct clk * clk)26 int clk_enable(struct clk *clk)
27 {
28 return 0;
29 }
30
clk_disable(struct clk * clk)31 void clk_disable(struct clk *clk)
32 {}
33
clk_get_rate(struct clk * clk)34 unsigned long clk_get_rate(struct clk *clk)
35 {
36 return clk->rate;
37 }
38
clk_round_rate(struct clk * clk,unsigned long rate)39 long clk_round_rate(struct clk *clk, unsigned long rate)
40 {
41 return clk->rate;
42 }
43
clk_set_rate(struct clk * clk,unsigned long rate)44 int clk_set_rate(struct clk *clk, unsigned long rate)
45 {
46 return 0;
47 }
48
49 static struct clk eclk = { .rate = 200000000 };
50 static struct clk pclk = { .rate = 150000000 };
51
52 static struct clk_lookup lookups[] = {
53 { .clk = &pclk, .con_id = "apb_pclk", },
54 { .clk = &pclk, .dev_id = "sp804", },
55 { .clk = &eclk, .dev_id = "ffe0e000.sdhci", },
56 { .clk = &pclk, .dev_id = "fff36000.serial", },
57 };
58
highbank_clocks_init(void)59 void __init highbank_clocks_init(void)
60 {
61 clkdev_add_table(lookups, ARRAY_SIZE(lookups));
62 }
63