[RFC PATCH 0/2] hw/sd: Deprecate the SPI mode and the SPI to SD adapter
alistair23 at gmail.com
Mon Jul 6 16:41:58 UTC 2020
On Sun, Jul 5, 2020 at 3:08 PM Philippe Mathieu-Daudé <f4bug at 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!
> 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.
> 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(+)
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