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authorFinn Thain <fthain@telegraphics.com.au>2016-12-31 19:56:26 -0500
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-07 16:56:24 +1100
commitd23eee88b56921a0bccd3b2355fc6feb4b5d343b (patch)
treef8da8de064bfde1952ad0520405be1d73ce9c131 /drivers/macintosh/Kconfig
parent97ced1aac07e7b5348a560512b287af69f863917 (diff)
via-cuda: Add support for Egret system controller
The Egret system controller was the predecessor to the Cuda and the differences are minor. On Cuda, byte acknowledgement requires one transition of the TACK signal; on Egret two are needed. On Cuda, TIP is active low; on Egret it is active high. And Cuda raises certain interrupts that Egret omits. Accomodating these differences complicates the Cuda driver slightly but avoids a lot of duplication (see next patch). Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/macintosh/Kconfig')
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