On 27 July 2016 at 14:31, Siva Durga Prasad Paladugu <siva.durga.palad...@xilinx.com> wrote: > Hi Jagan, > >> -----Original Message----- >> From: Jagan Teki [mailto:jagannadh.t...@gmail.com] >> Sent: Wednesday, July 27, 2016 1:24 PM >> To: Siva Durga Prasad Paladugu <siva...@xilinx.com> >> Cc: u-boot@lists.denx.de; Michal Simek <mich...@xilinx.com>; Siva Durga >> Prasad Paladugu <siva...@xilinx.com> >> Subject: Re: [PATCH v3 1/3] spi: spi_flash: Dont set quad enable for micron >> in all >> cases >> >> On 19 July 2016 at 14:40, Siva Durga Prasad Paladugu >> <siva.durga.palad...@xilinx.com> wrote: >> > Dont set quad enable for micron devices in all cases Setting the quad >> > enable bit in micron expects all other commands like register reads on >> > quad lines which may not be supported by some controllers. Hence, dont >> > set the quad enable if controller driver sets the no_all_quad. >> >> Sorry, I'm not fond of controller hacks, please try for any other solution >> and >> even planning to remove existing ones. > Definitely there should be a way to mention about controller capabilities to > the > Framework. As of now I can see this is only way. Do you have any other > Suggested way which is already in place. > I can see that Linux mainline has already removed Micron quad enable > functionality with this patch. Probably because of same kind of reason > https://github.com/torvalds/linux/commit/3b5394a3ccffbfa1d1d448d48742853a862822c4
The reason to remov this support from Linux is different than this, and u-boot have support for quad write ie not supported by Linux. -- Jagan. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot