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mmc: sdhci-pci-o2micro: Restore the SD clock's base clock frequency 

Drop the SD clock's base clock for an SDR104 card, as frequency is wrong when
inserting and SD2.0/SDR50 card.

Signed-off-by: Fred Ai <fred.ai@bayhubtech.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20211216060824.357-2-fred.ai@bayhubtech.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Fred Ai 2021-12-15 22:08:24 -08:00 committed by Ulf Hansson
parent 4be33cf187
commit a7c18e5cbb
1 changed files with 5 additions and 0 deletions
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5
drivers/mmc/host/sdhci-pci-o2micro.c
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@ -578,6 +578,11 @@ 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);