hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[PATCH] sh: Make peripheral clock frequency setting mandatory 

Pretty much every subtype does this now anyways, and as we depend on it in a
few places being set to something sensible quite early on, it's better for a
new subtype to simply set a sensible default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Mundt 2006-02-01 03:06:01 -08:00 committed by Linus Torvalds
parent 740172947b
commit 134ed1420e
2 changed files with 1 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/sh/Kconfig
View File

@ -396,14 +396,8 @@ source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
config SH_PCLK_FREQ_BOOL
bool "Set default pclk frequency"
default y if !SH_RTC
default n
config SH_PCLK_FREQ
int "Peripheral clock frequency (in Hz)"
depends on SH_PCLK_FREQ_BOOL
default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
default "60000000" if CPU_SUBTYPE_SH7751
default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7760

13
arch/sh/kernel/cpu/clock.c
View File

@ -38,9 +38,7 @@ static DECLARE_MUTEX(clock_list_sem);
static struct clk master_clk = {
.name = "master_clk",
.flags = CLK_ALWAYS_ENABLED | CLK_RATE_PROPAGATES,
#ifdef CONFIG_SH_PCLK_FREQ_BOOL
.rate = CONFIG_SH_PCLK_FREQ,
#endif
};
static struct clk module_clk = {
@ -227,16 +225,7 @@ int __init clk_init(void)
{
int i, ret = 0;
if (unlikely(!master_clk.rate))
/*
* NOTE: This will break if the default divisor has been
* changed.
*
* No one should be changing the default on us however,
* expect that a sane value for CONFIG_SH_PCLK_FREQ will
* be defined in the event of a different divisor.
*/
master_clk.rate = get_timer_frequency() * 4;
BUG_ON(unlikely(!master_clk.rate));
for (i = 0; i < ARRAY_SIZE(onchip_clocks); i++) {
struct clk *clk = onchip_clocks[i];