Herve Codina <herve.cod...@bootlin.com> writes:
> The CPM1 command mask is defined for use with the standard
> CPM1 command register as described in the user's manual:
>   0  |1        3|4    7|8   11|12      14| 15|
>   RST|    -     |OPCODE|CH_NUM|     -    |FLG|
>
> In the QMC extension the CPM1 command register is redefined
> (QMC supplement user's manuel) with the following mapping:
>   0  |1        3|4    7|8           13|14| 15|
>   RST|QMC OPCODE|  1110|CHANNEL_NUMBER| -|FLG|
>
> Extend the check command mask in order to support both the
> standard CH_NUM field and the QMC extension CHANNEL_NUMBER
> field.
>
> Signed-off-by: Herve Codina <herve.cod...@bootlin.com>
> Acked-by: Christophe Leroy <christophe.le...@csgroup.eu>
> ---
>  arch/powerpc/platforms/8xx/cpm1.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: Michael Ellerman <m...@ellerman.id.au> (powerpc)

cheers

> diff --git a/arch/powerpc/platforms/8xx/cpm1.c 
> b/arch/powerpc/platforms/8xx/cpm1.c
> index 8ef1f4392086..6b828b9f90d9 100644
> --- a/arch/powerpc/platforms/8xx/cpm1.c
> +++ b/arch/powerpc/platforms/8xx/cpm1.c
> @@ -100,7 +100,7 @@ int cpm_command(u32 command, u8 opcode)
>       int i, ret;
>       unsigned long flags;
>  
> -     if (command & 0xffffff0f)
> +     if (command & 0xffffff03)
>               return -EINVAL;
>  
>       spin_lock_irqsave(&cmd_lock, flags);
> -- 
> 2.39.0

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