From 51eafdeae621f1b04db51c3b4a690fa993aa48a0 Mon Sep 17 00:00:00 2001 From: Peter Stuge Date: Wed, 13 Oct 2010 06:23:02 +0000 Subject: Enable or disable the power button in Kconfig Some mainboards need to disable the power button to avoid turning off right after being turned on, while other boards ship with a jumper over the power button and should allow the user to configure the behavior. This adds infrastructure in the form of four mutually exclusive options which can be selected in a mainboard Kconfig (power button forced on/off, and user-controllable with default on/off) and one result bool which source code can test. (Enable the button or not.) The options have been implemented in CS5536 code and for all mainboards which select SOUTHBRIDGE_AMD_CS5536, but should be used also by other chipsets where applicable. Note that if chipset code uses the result bool ENABLE_POWER_BUTTON, then every board using that chipset must select one out of the four control options in order to build. All touched boards should have unchanged behavior, except pcengines/alix1c, traverse/geos and lippert/hurricane-lx where the power button can now be configured by the user. Build tested for alix1c, alix2d, hurricane-lx and wyse-s50. Confirmed to work as advertised on alix1c both with button enabled and disabled. Includes additional traverse/geos changes from Nathan and lippert/hurricane-lx changes from Jens to correctly use the new feature on those boards. Signed-off-by: Peter Stuge Acked-by: Aurelien Guillaume Acked-by: Nils Jacobs git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5948 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/amd/cs5536/cs5536_early_setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/southbridge/amd') diff --git a/src/southbridge/amd/cs5536/cs5536_early_setup.c b/src/southbridge/amd/cs5536/cs5536_early_setup.c index 452e530f41..047c1a21a0 100644 --- a/src/southbridge/amd/cs5536/cs5536_early_setup.c +++ b/src/southbridge/amd/cs5536/cs5536_early_setup.c @@ -92,8 +92,9 @@ static void cs5536_setup_iobase(void) static void cs5536_setup_power_button(void) { - /* Power Button Setup */ +#if CONFIG_ENABLE_POWER_BUTTON outl(0x40020000, PMS_IO_BASE + 0x40); +#endif /* setup WORK_AUX/GPIO24, it is the external signal for 5536 * vsb_work_aux controls all voltage rails except Vstandby & Vmem. -- cgit v1.2.3