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ARM: OMAP: Avoid sleeping during arch_reset

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If we call clk_get() from arch_reset we get ugly messages before
reboot.

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren
2006-09-25 12:41:20 +03:00
parent 7c250413e5
commit ae78dcf79a
2 changed files with 23 additions and 7 deletions
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20
arch/arm/mach-omap2/clock.c
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@@ -36,6 +36,8 @@
static struct prcm_config *curr_prcm_set;
static u32 curr_perf_level = PRCM_FULL_SPEED;
static struct clk *vclk;
static struct clk *sclk;
/*-------------------------------------------------------------------------
* Omap2 specific clock functions
@@ -984,6 +986,20 @@ static void __init omap2_get_crystal_rate(struct clk *osc, struct clk *sys)
sys->rate = sclk;
}
/*
* Set clocks for bypass mode for reboot to work.
*/
void omap2_clk_prepare_for_reboot(void)
{
u32 rate;
if (vclk == NULL || sclk == NULL)
return;
rate = clk_get_rate(sclk);
clk_set_rate(vclk, rate);
}
#ifdef CONFIG_OMAP_RESET_CLOCKS
static void __init omap2_disable_unused_clocks(void)
{
@@ -1080,5 +1096,9 @@ int __init omap2_clk_init(void)
if (cpu_is_omap2430())
clk_enable(&sdrc_ick);
/* Avoid sleeping sleeping during omap2_clk_prepare_for_reboot() */
vclk = clk_get(NULL, "virt_prcm_set");
sclk = clk_get(NULL, "sys_ck");
return 0;
}