On 16/12/2021 08:08, fred wrote:
> From: Fred Ai <fred.ai@xxxxxxxxxxxxxx>
>
> Remove SDR104 card, SD clock's base clock
> frequency is not right when insert SD2.0/SDR50 card
>
> Signed-off-by: Fred Ai <fred.ai@xxxxxxxxxxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> Change in V3:
> 1.Set SD clock's base clock frequency to 208MHz when card mode is SDR104/HS200.
> 2.Set SD clock's base clock frequency to 200MHz when card mode is SD2.0/SDR50.
> ---
> drivers/mmc/host/sdhci-pci-o2micro.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
> index f55602609f8c..4ca1e8c5b631 100644
> --- a/drivers/mmc/host/sdhci-pci-o2micro.c
> +++ b/drivers/mmc/host/sdhci-pci-o2micro.c
> @@ -577,6 +577,11 @@ static void sdhci_pci_o2_set_clock(struct sdhci_host *host, unsigned int clock)
>
> if ((scratch_32 & 0xFFFF0000) != 0x2c280000)
> o2_pci_set_baseclk(chip, 0x2c280000);
> + } else {
> + pci_read_config_dword(chip->pdev, O2_SD_PLL_SETTING, &scratch_32);
> +
> + if ((scratch_32 & 0xFFFF0000) != 0x25100000)
> + o2_pci_set_baseclk(chip, 0x25100000);
> }
>
> pci_read_config_dword(chip->pdev, O2_SD_OUTPUT_CLK_SOURCE_SWITCH, &scratch_32);
>
