On Sun, Jul 5, 2020 at 3:08 PM Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
I tried to maintain the SPI mode because it is useful in tiny embedded devices, and thought it would be helpful for the AVR MCUs. As AVR was blocked, I thought it was wise to deprecate the SPI mode as users are interested in the faster MMC mode. Today Thomas surprised me by posting an update of it! https://www.mail-archive.com/qemu-devel@nongnu.org/msg720089.html
I'm still posting this as RFC to discuss, but I'm reconsiderating keeping this mode a bit more.
I think it's worth keeping. I'm pretty sure the HiFive Unleashed (sifive_u in QEMU) uses SD over SPI. There isn't an upstream model but I think there are out of tree patches that hopefully one day will make it upstream. Alistair
Philippe Mathieu-Daudé (2): hw/sd/ssi-sd: Deprecate the SPI to SD card 'adapter' hw/sd/sdcard: Deprecate the SPI mode
docs/system/deprecated.rst | 10 ++++++++++ 1 file changed, 10 insertions(+)
-- 2.21.3