blob: 1b3f36aebe11e47939c784aeb1ab8b410c567a36 (
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
49
50
51
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Broadcom Corporation.
*/
#include <common.h>
#include <asm/io.h>
#include <linux/errno.h>
#include <asm/arch/sysmap.h>
#include <asm/kona-common/clk.h>
#include "clk-core.h"
/* Enable appropriate clocks for a BSC/I2C port */
int clk_bsc_enable(void *base)
{
int ret;
char *bscstr, *apbstr;
switch ((u32) base) {
case PMU_BSC_BASE_ADDR:
/* PMU clock is always enabled */
return 0;
case BSC1_BASE_ADDR:
bscstr = "bsc1_clk";
apbstr = "bsc1_apb_clk";
break;
case BSC2_BASE_ADDR:
bscstr = "bsc2_clk";
apbstr = "bsc2_apb_clk";
break;
case BSC3_BASE_ADDR:
bscstr = "bsc3_clk";
apbstr = "bsc3_apb_clk";
break;
default:
printf("%s: base 0x%p not found\n", __func__, base);
return -EINVAL;
}
/* Note that the bus clock must be enabled first */
ret = clk_get_and_enable(apbstr);
if (ret)
return ret;
ret = clk_get_and_enable(bscstr);
if (ret)
return ret;
return 0;
}
|