On Thu, 1 Apr 2010, Vishwanath BS wrote:
> DSP usage at VDD1 OPP1 and OPP2 with Smartreflex enabled and any MM
> UCs running DSP codec was earlier restricted as DSP crashed.
> The root cause is wrong DPLL1/DPLL2 Bypass clock at VDD1 OPP1 and OPP2.
> The solution is to make sure DPLL1/DPLL2 bypass clock is always less
> than maximum supported frequency for the specific OPP.
>
> Signed-off-by: Vishwanath BS <vishwanath.bs@xxxxxx>
> ---
> arch/arm/mach-omap2/clock3xxx_data.c | 12 ++++++++++++
> 1 files changed, 12 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
> index d5153b6..d8e57a6
> --- a/arch/arm/mach-omap2/clock3xxx_data.c
> +++ b/arch/arm/mach-omap2/clock3xxx_data.c
...
> @@ -3597,5 +3601,13 @@ int __init omap3xxx_clk_init(void)
> sdrc_ick_p = clk_get(NULL, "sdrc_ick");
> arm_fck_p = clk_get(NULL, "arm_fck");
>
> + /* Set the bypass clock dividers for DPLL1 and DPLL2 */
> + if (cpu_is_omap3630()) {
> + clk_set_rate(&dpll1_fck, 400000000/2);
> + clk_set_rate(&dpll2_fck, 400000000/2);
> + } else {
> + clk_set_rate(&dpll1_fck, 332000000/4);
> + clk_set_rate(&dpll2_fck, 332000000/4);
> + }
This code is highly OPP-specific. Why is this code needed here?
Shouldn't the code in resource34xx.c be sufficient?
- Paul
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