[U-Boot] [PATCH v2] socfpga: Adding Freeze Controller driver

2013-09-19 Thread Chin Liang See
Adding Freeze Controller driver. All HPS IOs need to be in freeze state during pin mux or IO buffer configuration. It is to avoid any glitch which might happen during the configuration from propagating to external devices. Signed-off-by: Chin Liang See cl...@altera.com Cc: Wolfgang Denk

Re: [U-Boot] [PATCH v2] socfpga: Adding Freeze Controller driver

2013-09-19 Thread Pavel Machek
Hi! Adding Freeze Controller driver. All HPS IOs need to be in freeze state during pin mux or IO buffer configuration. It is to avoid any glitch which might happen during the configuration from propagating to external devices. So... code that is currently in u-boot appears to work, but may

Re: [U-Boot] [PATCH v2] socfpga: Adding Freeze Controller driver

2013-09-19 Thread Chin Liang See
Hi Pavel, On Fri, 2013-09-20 at 00:55 +0200, ZY - pavel wrote: Hi! Adding Freeze Controller driver. All HPS IOs need to be in freeze state during pin mux or IO buffer configuration. It is to avoid any glitch which might happen during the configuration from propagating to external