On Mon, May 25, 2020 at 10:58:12PM +0530, Jagan Teki wrote:
On Mon, May 25, 2020 at 9:06 PM Simon Glass sjg@chromium.org wrote:
Hi,
On Mon, 25 May 2020 at 04:35, Marek Vasut marex@denx.de wrote:
On 5/25/20 10:44 AM, Jagan Teki wrote:
SPL has a foot-print constraint, so fully switching a particular subsystem like SPI or SPI Flash to DM would increase the size of it.
Possible areas to look at are (assume SPL_DM supported)
- platdata
- implement board or platform specific spl device driver which
bypassed the actual framework ex: spl_spi_sunxi.c
Do we have any other solutions? or any arguments on above step 2?
SPL does not need to support DM until the size problem is solved.
I don't think the problem will ever be 'solved'. It is an ongoing battle.
But as it happens I've just sent a proposal for tiny-dm that I think will help.
Jagan, which board are you trying to convert? If you are trying to convert SPI flash, I think we need to remove the legacy code first.
These are the partially dm converted drivers, so boards which are using can eventually need a dm spi switch.
drivers/spi/fsl_dspi.c drivers/spi/kirkwood_spi.c drivers/spi/mxc_spi.c drivers/spi/mxs_spi.c drivers/spi/omap3_spi.c drivers/spi/sh_qspi.cI'm looking for proper options along with removal of some legacy code, and tiny-dm.
For the number of about to be year past published deadline (which has been extended at times to get to that point even) boards, I think we need to start by dropping boards. Then we can see what makes sense moving forward.