From 4697abea62a3b02c9c346b94d7eae2e4a1c6cfd0 Mon Sep 17 00:00:00 2001 From: "maxims@google.com" Date: Wed, 18 Jan 2017 13:44:55 -0800 Subject: aspeed: Add drivers common to all Aspeed SoCs Add support for Watchdog Timer, which is compatible with AST2400 and AST2500 watchdogs. There is no uclass for Watchdog yet, so the driver does not follow the driver model. It also uses fixed clock, so no clock driver is needed. Add support for timer for Aspeed ast2400/ast2500 devices. The driver actually controls several devices, but because all devices share the same Control Register, it is somewhat difficult to completely decouple them. Since only one timer is needed at the moment, this should be OK. The timer uses fixed clock, so does not rely on a clock driver. Add sysreset driver, which uses watchdog timer to do resets and particular watchdog device to use is hardcoded (0) Reviewed-by: Simon Glass --- drivers/timer/Kconfig | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/timer/Kconfig') diff --git a/drivers/timer/Kconfig b/drivers/timer/Kconfig index cb18f12fc99..cd38a6d4bd9 100644 --- a/drivers/timer/Kconfig +++ b/drivers/timer/Kconfig @@ -46,4 +46,16 @@ config OMAP_TIMER help Select this to enable an timer for Omap devices. +config AST_TIMER + bool "Aspeed ast2400/ast2500 timer support" + depends on TIMER + default y if ARCH_ASPEED + help + Select this to enable timer for Aspeed ast2400/ast2500 devices. + This is a simple sys timer driver, it is compatible with lib/time.c, + but does not support any interrupts. Even though SoC has 8 hardware + counters, they are all treated as a single device by this driver. + This is mostly because they all share several registers which + makes it difficult to completely separate them. + endmenu -- cgit v1.2.3