During our SDHI hackathon, we found that Lager was the only Gen2 board having issues with a stubborn SD card. The issue went away when setting TDSEL to the expected value mentioned in the H2 documentation which is sadly not the default value. M2-W, M2-N, and V2H have an expected value of 0 for TDSEL, so this is why they likely work out of the box (V2H has non-zero drive strength bit, though). I can't verify those SoCs here, no boards. E2 has a non-zero expected value as well, so we fix it in this patch series as well (although on my board the bootloader prepares TDSEL correctly, but let's not rely on that). Based on an RFC patch for H2 sent two years ago. Wolfram Sang (2): pinctrl: sh-pfc: r8a7790: initialize TDSEL register pinctrl: sh-pfc: r8a7794: initialize TDSEL register drivers/pinctrl/sh-pfc/pfc-r8a7790.c | 10 ++++++++++ drivers/pinctrl/sh-pfc/pfc-r8a7794.c | 9 +++++++++ 2 files changed, 19 insertions(+) -- 2.19.0
