Hi, > On 01-12 09:44, Ivan T. Ivanov wrote: > On 01-11 23:07, Stefan Wahren wrote: > > > > Hi Ivan, > > > > Am 10.01.24 um 13:29 schrieb Ivan T. Ivanov: > > > Borrow SD quirks from vendor Linux driver. > > > > > > "BCM2712 unfortunately carries with it a perennial bug with the SD > > > controller register interface present on previous chips (2711/2709/2708). > > > Accesses must be dword-sized and a read-modify-write cycle to the 32-bit > > > registers containing the COMMAND, TRANSFER_MODE, BLOCK_SIZE and > > > BLOCK_COUNT registers tramples the upper/lower 16 bits of data written. > > > BCM2712 does not seem to need the extreme delay between each write as on > > > previous chips, just the serialisation of writes to these registers in a > > > single 32-bit operation." > > > > > > Signed-off-by: Ivan T. Ivanov <iiva...@suse.de> > > did you noticed this commit/pull request? > > > > https://github.com/raspberrypi/linux/pull/5842/commits/3c9d840dc933cfb13a77fd3c03356ee4adacc30b > > Doh, no. Let me check.
And indeed, no special accessors are needed. I am preparing new version and will send it shortly. Thanks, Ivan
