On Wed, Nov 14, 2018 at 2:39 PM Simon Goldschmidt simon.k.r.goldschmidt@gmail.com wrote:
On Wed, Nov 14, 2018 at 9:59 AM Jagan Teki jagan@amarulasolutions.com wrote:
On Sat, Nov 10, 2018 at 1:14 AM Simon Goldschmidt simon.k.r.goldschmidt@gmail.com wrote:
On 06.11.2018 10:24, Neil Armstrong wrote:
There is no reason not to use the Linux "jedec,spi-nor" binding in u-boot. This patch adds this compatible into sf_probe and will avoid changing the device tree files to add a u-boot specific compatible to probe a spi flash.
This change is needed to enable SPI NOR Flash support using the non-modified device tree file for Amlogic Meson GX SoC based boards.
Signed-off-by: Neil Armstrong narmstrong@baylibre.com
This is definitively a move in the right direction! I was only days away from sending this myself ;-)
Reviewed-by: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com
I would still need more changes to U-Boot to boot the Linux socfpga devicetrees without patches (they have compatible = "n25q256a" etc.), but then again, maybe it's easier to change the Linux ones to include "jedec,spi-nor" than trying the effort of changing U-Boot here...
It's better to revert/remove "spi-flash" from Linux sync dts(s) files along with this compatible change, u-boot specific stuff like sandbox still use the legacy.
Is this a reply to me to change the scofpga dts files or to Neil to remove "spi-flash" from U-Boot with his patch?
Not to remove as of now.
Because, sure, once U-Boot supports "jedec-spi-nor", I'll make sure the Linux devicetrees get that, too (in addition to the "n25q..." compatibles) so that they just work in U-Boot and can be synced again.
I think it's better to go with all respective changes in one patch? do you think it's risky? because many of Linux sync dts on respective driver will work straightaway. I have no objection to add this "jedec-spi-nor" below of "spi-flash". Once all moved we can drop the "spi-flash"