From 0d0b3c5467192a101faaaebcace4ca390c2a5646 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Mon, 10 Feb 2014 11:34:27 -0800 Subject: [PATCH] lynxpoint: Finalize chipset before playload if not CONFIG_CHROMEOS The Chrome OS environment sends an SMI to finalize the chipset/board at the end of the "depthcharge" payload, but there is no facility to send this command if not using the full ChromeOS firmware stack. This commit adds a callback before booting the payload that will issue this SMI which will lock down the chipset and route USB devices to the XHCI controller. Change-Id: I2db9c44d61ebf8fa28a8a2b260a63d4aa4d75842 Signed-off-by: Duncan Laurie Reviewed-on: http://review.coreboot.org/5181 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Ronald G. Minnich --- src/southbridge/intel/lynxpoint/smi.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/src/southbridge/intel/lynxpoint/smi.c b/src/southbridge/intel/lynxpoint/smi.c index 75c3e66743..af40eaf020 100644 --- a/src/southbridge/intel/lynxpoint/smi.c +++ b/src/southbridge/intel/lynxpoint/smi.c @@ -19,7 +19,7 @@ * MA 02110-1301 USA */ - +#include #include #include #include @@ -124,3 +124,20 @@ void smm_setup_structures(void *gnvs, void *tcg, void *smi1) "d" (APM_CNT) ); } + +/* + * Finalize system before payload boot if not in ChromeOS environment. + */ +#if !CONFIG_CHROMEOS + +static void finalize_boot(void *unused) +{ + outb(0xcb, 0xb2); +} + +BOOT_STATE_INIT_ENTRIES(finalize) = { + BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, + finalize_boot, NULL), +}; + +#endif