Change in coreboot[master]: tianocore: Add option to use HPET timer

[Lijian Zhao (Code Review)]

Lijian Zhao has uploaded this change for review. ( https://review.coreboot.org/28542

Change subject: tianocore: Add option to use HPET timer
......................................................................

tianocore: Add option to use HPET timer

Default tianocore payload select to use 8254 timer instead of hpet
timer, for SOC like cannonlake/coffeelake, 8254 timer had been clock
gated. Add option for tianocore payload to use HPET timer.

BUG=N/A.
TEST=Build and boot up into UEFI shell on whiskeylake rvp platform.

Change-Id: I857704b0ca128fc9da193ae26a33c7cf89ad7320
Signed-off-by: Lijian Zhao 
---
M payloads/external/tianocore/Kconfig
M payloads/external/tianocore/Makefile
A payloads/external/tianocore/patches/hpet/0001-CorebootPayload-Use-HPET-Timer.patch
3 files changed, 51 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/42/28542/1

diff --git a/payloads/external/tianocore/Kconfig b/payloads/external/tianocore/Kconfig
index 596b191..4f4012b 100644
--- a/payloads/external/tianocore/Kconfig
+++ b/payloads/external/tianocore/Kconfig
@@ -88,4 +88,9 @@

endchoice

+config TIANOCORE_HPET_TIMER
+	bool "Tianocore Hpet Timer"
+	help
+	  Use HPET Timer.
+
 endif
diff --git a/payloads/external/tianocore/Makefile b/payloads/external/tianocore/Makefile
index 2f770d2..38bb999 100644
--- a/payloads/external/tianocore/Makefile
+++ b/payloads/external/tianocore/Makefile
@@ -54,6 +54,10 @@
    	fi

$(project_dir)/.version_$(TAG-y): fetch
+	ifeq ($(CONFIG_TIANOCORE_HPET_TIMER),y)
+		echo "Load HPET patches...";
+		cp $(CURDIR)/patches/hpet/*.patch $(CURDIR)/patches/;
+	endif
    if  ! [[ -e $(project_dir)/.version_$(STABLE_COMMIT_ID) ]] || \
    	[ "$(TAG-y)" = "origin/master" ] ; then \
    	rm -f .version_*; \
@@ -62,6 +66,8 @@
    		git checkout master; \
    		git branch -D coreboot 2>/dev/null; \
    		git checkout -b coreboot $(TAG-y); \
+				echo "Load HPET patches..."; \
+				cp $(CURDIR)/patches/hpet/*.patch $(CURDIR)/patches/; \
    	for patch in $(CURDIR)/patches/*.patch; do \
    		echo "Applying $$patch"; \
    		cd $(project_dir); \
diff --git a/payloads/external/tianocore/patches/hpet/0001-CorebootPayload-Use-HPET-Timer.patch b/payloads/external/tianocore/patches/hpet/0001-CorebootPayload-Use-HPET-Timer.patch
new file mode 100644
index 0000000..381a283
--- /dev/null
+++ b/payloads/external/tianocore/patches/hpet/0001-CorebootPayload-Use-HPET-Timer.patch
@@ -0,0 +1,40 @@
+From ef32c984359f5e8ecedef92904a7be520b0fca9f Mon Sep 17 00:00:00 2001
+From: Lijian Zhao 
+Date: Fri, 7 Sep 2018 17:45:09 -0700
+Subject: [PATCH] CorebootPayload: Use HPET Timer
+
+Signed-off-by: Lijian Zhao 
+---
+ CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc    | 2 +-
+ CorebootPayloadPkg/CorebootPayloadPkgIa32X64.dsc | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc b/CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc
+index b6cdb697a5b0..98a5f364a7b3 100644
+--- a/CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc
++++ b/CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc
+@@ -80,7 +80,7 @@
+   #
+   # Chipset options
+   #
+-  DEFINE USE_HPET_TIMER                   = FALSE
++  DEFINE USE_HPET_TIMER                   = TRUE
+
+   #
+   # Shell options: [BUILD_SHELL, FULL_BIN, MIN_BIN, NONE, UEFI]
+diff --git a/CorebootPayloadPkg/CorebootPayloadPkgIa32X64.dsc b/CorebootPayloadPkg/CorebootPayloadPkgIa32X64.dsc
+index c3fe099e5fec..8952aea98d7e 100644
+--- a/CorebootPayloadPkg/CorebootPayloadPkgIa32X64.dsc
++++ b/CorebootPayloadPkg/CorebootPayloadPkgIa32X64.dsc
+@@ -80,7 +80,7 @@
+   #
+   # Chipset options
+   #
+-  DEFINE USE_HPET_TIMER                   = FALSE
++  DEFINE USE_HPET_TIMER                   = TRUE
+
+   #
+   # Shell options: [BUILD_SHELL, FULL_BIN, MIN_BIN, NONE, UEFI]
+--
+2.17.1
+