[U-Boot] [PATCH v2 06/10] powerpc, 8xx: Properly set CPM frequency in the device tree

Heiko Schocher hs at denx.de
Thu Jul 6 09:46:04 UTC 2017


Hello Christophe,

Am 06.07.2017 um 10:33 schrieb Christophe Leroy:
> For processors whose core runs at twice the bus frequency,
> the fallback frequency calculation in Linux provides a wrong
> result. Therefore, U-boot needs to pass the correct value.
>
> Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>
> ---
>   arch/powerpc/cpu/mpc8xx/fdt.c | 2 ++
>   1 file changed, 2 insertions(+)

Reviewed-by: Heiko Schocher <hs at denx.de>

bye,
Heiko
>
> diff --git a/arch/powerpc/cpu/mpc8xx/fdt.c b/arch/powerpc/cpu/mpc8xx/fdt.c
> index 88ee1c502c..f9b74ded5a 100644
> --- a/arch/powerpc/cpu/mpc8xx/fdt.c
> +++ b/arch/powerpc/cpu/mpc8xx/fdt.c
> @@ -20,6 +20,8 @@ void ft_cpu_setup(void *blob, bd_t *bd)
>   			     "bus-frequency", bd->bi_busfreq, 1);
>   	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
>   			     "clock-frequency", bd->bi_intfreq, 1);
> +	do_fixup_by_compat_u32(blob, "fsl,pq1-soc", "clock-frequency",
> +			       bd->bi_intfreq, 1);
>   	do_fixup_by_compat_u32(blob, "fsl,cpm-brg", "clock-frequency",
>   			       gd->arch.brg_clk, 1);
>
>

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