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MdeModulePkg/SdMmcPciHcDxe: Allow additional SDHCI versions 

Clock control is similar in SDHCI versions greater then version 2. Add
support for more recent versions of the controller specification.

SD card support for 1.8V is also present in controller versions 3 and
greater.

https://bugzilla.tianocore.org/show_bug.cgi?id=1233

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Jeff Brasen 2018-10-10 01:50:37 +08:00 committed by Hao Wu
parent bdf038ccff
commit bbce001515
2 changed files with 4 additions and 2 deletions
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3
MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdDevice.c
View File

@ -978,7 +978,8 @@ SdCardIdentification (
return Status;
}
if ((ControllerVer & 0xFF) == SD_MMC_HC_CTRL_VER_300) {
if (((ControllerVer & 0xFF) >= SD_MMC_HC_CTRL_VER_300) &&
((ControllerVer & 0xFF) <= SD_MMC_HC_CTRL_VER_420)) {
S18r = TRUE;
} else if (((ControllerVer & 0xFF) == SD_MMC_HC_CTRL_VER_100) || ((ControllerVer & 0xFF) == SD_MMC_HC_CTRL_VER_200)) {
S18r = FALSE;

3
MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
View File

@ -782,7 +782,8 @@ SdMmcHcClockSupply (
//
// Set SDCLK Frequency Select and Internal Clock Enable fields in Clock Control register.
//
if ((ControllerVer & 0xFF) == SD_MMC_HC_CTRL_VER_300) {
if (((ControllerVer & 0xFF) >= SD_MMC_HC_CTRL_VER_300) &&
((ControllerVer & 0xFF) <= SD_MMC_HC_CTRL_VER_420)) {
ASSERT (Divisor <= 0x3FF);
ClockCtrl = ((Divisor & 0xFF) << 8) | ((Divisor & 0x300) >> 2);
} else if (((ControllerVer & 0xFF) == 0) || ((ControllerVer & 0xFF) == 1)) {