On Mon, Aug 26, 2019 at 01:46:36PM +0300, Ivan Mikhaylov wrote: > The option for the ast2400/2500 to get access to CS0 at runtime. > > Signed-off-by: Ivan Mikhaylov <[email protected]> > --- > Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt > b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt > index c5077a1f5cb3..023a9b578df6 100644 > --- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt > +++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt > @@ -34,6 +34,13 @@ Optional properties: > engine is responsible for this. > > - aspeed,alt-boot: If property is present then boot from alternate block. > + At alternate side 'access_cs0' sysfs file provides:
What's sysfs? Don't put Linux stuff in bindings. > + ast2400: a way to get access to the primary SPI flash > + chip at CS0 after booting from the alternate > + chip at CS1. > + ast2500: a way to restore the normal address mapping > from > + (CS0->CS1, CS1->CS0) to (CS0->CS0, CS1->CS1). > + > - aspeed,external-signal: If property is present then signal is sent to > external reset counter (only WDT1 and WDT2). If not > specified no external signal is sent. > -- > 2.20.1 >
