> > - if ((div / 2) <= (SUN4I_CLK_CTL_CDR2_MASK + 1)) {
> > + if (div != 1 && ((div / 2) <= (SUN4I_CLK_CTL_CDR2_MASK + 1))) {
> > div /= 2;
>
> This is still not fully correct, is it? If I ask for 10 MHz, the
> algorithm should select 8 MHz (24/3) or actually 6 MHz (24/4), but it
>
On Fri, 12 Jul 2024 19:14:57 +0200
Michael Walle wrote:
Hi,
> If the maximum frequency is requested, we still fall into the CDR2
> handling. But there the minimal divider is 2. For the sun6i and sun8i we
> can do better with the CDR1 setting where the minimal divider is 1:
> SPI_CLK = MOD_CLK
If the maximum frequency is requested, we still fall into the CDR2
handling. But there the minimal divider is 2. For the sun6i and sun8i we
can do better with the CDR1 setting where the minimal divider is 1:
SPI_CLK = MOD_CLK / 2 ^ cdr with cdr = 0
Thus, handle the div = 1 case specially.
While
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