Renesas-MMC-Enabled-Speeds

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SDHI

Status of speeds enabled on SDHI devices on R-Car Gen 2 & 3 SoCs in mainline as of v4.10.

R-Car Gen 2

SoC Board Slot Form Factor High Speed SDR50 SDR104
r8a7790 (H2) Lager SDHI0 µSD
SDHI1 Not exposed on board
SDHI2 µSD ✗ (SoC)
SDHI3 Not exposed on board
r8a7791 (M2-W) Koelsch SDHI0 SD
SDHI1 SD ✗ (SoC)
SDHI2 µSD ✗ (SoC)
Porter SDHI0 SD ✗ (Test) ✗ (Test)
SDHI1 Not exposed on board
SDHI2 µSD ✗ (Test) ✗ (SoC)
r8a7792 (V2H) Wheat SDHI0 µSD ✗ (SoC) ✗ (SoC)
r8a7793 (M2-N) Gose SDHI0 SD ✗ (Test) ✗ (Test)
SDHI1 SD ✗ (Test) ✗ (SoC)
SDHI2 µSD ✗ (Test) ✗ (SoC)
r8a7794 (E2) Alt SDHI0 SD
SDHI1 SD ✗ (SoC)
SDHI2 Not exposed on board
Silk SDHI0 Not exposed on board
SDHI1 µSD ✗ (Test) ✗ (SoC)
SDHI2 Not exposed on board

R-Car Gen 3

SoC Board Slot Form Factor High Speed SDR50 SDR104 HS200 HS400
r8a7795 (H3) salvator-x SDHI0 SD ✗ (SW) N/A (Not used for onboard eMMC)
SDHI1 N/A (Not exposed on board)
SDHI2 eMMC N/A (Used for onboard eMMC) ✗ (v4.12) ✗ (SW)
SDHI3 SD ✗ (SW) N/A (Not used for onboard eMMC)
h3ulcb SDHI0 µSD ✗ (SW) N/A (Not used for onboard eMMC)
SDHI1 N/A (Not exposed on board)
SDHI2 eMMC N/A (Used for onboard eMMC) ✗ (v4.12) ✗ (SW)
SDHI3 N/A (Not exposed on board)
r8a7796 (M3-W) salvator-x SDHI0 SD ✗ (SW) N/A (Not used for onboard eMMC)
SDHI1 N/A (Not exposed on board)
SDHI2 eMMC N/A (Used for onboard eMMC) ✗ (v4.12) ✗ (SW)
SDHI3 SD ✗ (SW) N/A (Not used for onboard eMMC)
m3ulcb SDHI0 µSD ✗ (SW) N/A (Not used for onboard eMMC)
SDHI1 N/A (Not exposed on board)
SDHI2 eMMC N/A (Used for onboard eMMC) ✗ (v4.12) ✗ (SW)
SDHI3 N/A (Not exposed on board)

Legend

Status Description
Enabled
✗ (Test) Not enabled due to lack of testing; could likely be enabled
✗ (SoC) Not enabled as it is not supported by the SoC
✗ (SW) Not enabled due to limitation in Linux kernel
✗ (v4.12) Not enabled; DT patch pending for v4.12