On December 21, 2016, Geert Uytterhoeven wrote: > >> Mike/Stephen: as this is a fix for stable (v3.16+), can you please > >> take it directly? > > > > Sure, is it a fix for something that has been exposed as a problem in > > this merge window? Just trying to gauge the urgency of merging this. > > No, I don't think it has been exposed by changes in this merge window (the > only RZ/A1 changes were the enablement of SDHI and MMC). > Chris, can you please confirm?
That's correct. In reality, none of the existing RZ/A1 drivers in the kernel should have ever worked (ETH, SPI, I2C, MTU2, etc...) because on chip reset all the peripheral clocks are turned off. However...like Geert mentioned...the boot loader was turning everything on shortly after reset so even though the clock driver never worked, it made it seems so. Oops. Of course now going forward, I use a modified boot loader to turn everything back off (except the serial console) so I can confirm that clock gating is really working. Chris
