On Thu, Dec 31, 2020 at 5:04 PM Bin Meng <bmeng...@gmail.com> wrote:
>
> From: Bin Meng <bin.m...@windriver.com>
>
> Per the "Physical Layer Specification Version 8.00" chapter 7.5.1,
> "Command/Response", there is a minimum 8 clock cycles (Ncr) before
> the card response shows up on the data out line. However current
> implementation jumps directly to the sending response state after
> all 6 bytes command is received, which is a spec violation.
>
> Add a new state PREP_RESP in the ssi-sd state machine to handle it.
>
> Fixes: 775616c3ae8c ("Partial SD card SPI mode support")
> Signed-off-by: Bin Meng <bin.m...@windriver.com>
> ---
>
> hw/sd/ssi-sd.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
Reviewed-by: Pragnesh Patel <pragnesh.pa...@sifive.com>
Tested-by: Pragnesh Patel <pragnesh.pa...@sifive.com>
