Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Paul Mundt |
231 |
83.70% |
5 |
41.67% |
| Andrew Morton |
21 |
7.61% |
1 |
8.33% |
| Magnus Damm |
17 |
6.16% |
2 |
16.67% |
| Linus Torvalds (pre-git) |
5 |
1.81% |
3 |
25.00% |
| Kuninori Morimoto |
2 |
0.72% |
1 |
8.33% |
| Total |
276 |
|
12 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* arch/sh/kernel/cpu/sh3/clock-sh7710.c
*
* SH7710 support for the clock framework
*
* Copyright (C) 2005 Paul Mundt
*
* FRQCR parsing hacked out of arch/sh/kernel/time.c
*
* Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
* Copyright (C) 2002, 2003, 2004 Paul Mundt
* Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/clock.h>
#include <asm/freq.h>
#include <asm/io.h>
static int md_table[] = { 1, 2, 3, 4, 6, 8, 12 };
static void master_clk_init(struct clk *clk)
{
clk->rate *= md_table[__raw_readw(FRQCR) & 0x0007];
}
static struct sh_clk_ops sh7710_master_clk_ops = {
.init = master_clk_init,
};
static unsigned long module_clk_recalc(struct clk *clk)
{
int idx = (__raw_readw(FRQCR) & 0x0007);
return clk->parent->rate / md_table[idx];
}
static struct sh_clk_ops sh7710_module_clk_ops = {
.recalc = module_clk_recalc,
};
static unsigned long bus_clk_recalc(struct clk *clk)
{
int idx = (__raw_readw(FRQCR) & 0x0700) >> 8;
return clk->parent->rate / md_table[idx];
}
static struct sh_clk_ops sh7710_bus_clk_ops = {
.recalc = bus_clk_recalc,
};
static unsigned long cpu_clk_recalc(struct clk *clk)
{
int idx = (__raw_readw(FRQCR) & 0x0070) >> 4;
return clk->parent->rate / md_table[idx];
}
static struct sh_clk_ops sh7710_cpu_clk_ops = {
.recalc = cpu_clk_recalc,
};
static struct sh_clk_ops *sh7710_clk_ops[] = {
&sh7710_master_clk_ops,
&sh7710_module_clk_ops,
&sh7710_bus_clk_ops,
&sh7710_cpu_clk_ops,
};
void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx)
{
if (idx < ARRAY_SIZE(sh7710_clk_ops))
*ops = sh7710_clk_ops[idx];
}