To comply with Spec v1.10 (and 2.00, 3.01): . TRAN_SPEED
for current SD Memory Cards that field must be always 0_0110_010b (032h) which is equal to 25MHz - the mandatory maximum operating frequency of SD Memory Card. Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> Reviewed-by: Alistair Francis <alistair.fran...@xilinx.com> --- hw/sd/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index c1ba098d86..14c1cb1332 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -358,7 +358,7 @@ static void sd_set_csd(SDState *sd, uint64_t size) sd->csd[0] = 0x00; /* CSD structure */ sd->csd[1] = 0x26; /* Data read access-time-1 */ sd->csd[2] = 0x00; /* Data read access-time-2 */ - sd->csd[3] = 0x5a; /* Max. data transfer rate */ + sd->csd[3] = 0x32; /* Max. data transfer rate: 25 MHz */ sd->csd[4] = 0x5f; /* Card Command Classes */ sd->csd[5] = 0x50 | /* Max. read data block length */ HWBLOCK_SHIFT; -- 2.16.1