x86: Move coreboot sysinfo parsing into generic x86 code

It is useful to be able to parse coreboot tables on any x86 build which is
booted from coreboot. Add a new Kconfig option to enable this feature and
move the code so it can be used on any board, if enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5b089af69940b1f1ef72bf6213fb2268d1657c2b..970bdff37fbe532d84ad4e92fe541a8f584f3d41 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1047,4 +1047,25 @@ config INTEL_GMA_SWSMISCI
 
 endif # INTEL_SOC
 
+config COREBOOT_SYSINFO
+       bool "Support reading coreboot sysinfo"
+       default y if SYS_COREBOOT
+       help
+         Select this option to read the coreboot sysinfo table on start-up,
+         if present. This is written by coreboot before it exits and provides
+         various pieces of information about the running system, including
+         display, memory and build information. It is stored in
+         struct sysinfo_t after parsing by get_coreboot_info().
+
+config SPL_COREBOOT_SYSINFO
+       bool "Support reading coreboot sysinfo"
+       depends on SPL
+       default y if COREBOOT_SYSINFO
+       help
+         Select this option to read the coreboot sysinfo table in SPL,
+         if present. This is written by coreboot before it exits and provides
+         various pieces of information about the running system, including
+         display, memory and build information. It is stored in
+         struct sysinfo_t after parsing by get_coreboot_info().
+
 endmenu

diff --git a/arch/x86/cpu/coreboot/Makefile b/arch/x86/cpu/coreboot/Makefile
index 605f90304e37e55826f836ab8b4c31ee3a5677e7..a6cdb9a1485acc111392ae3e3d6dd3fb517a4b55 100644 (file)
--- a/arch/x86/cpu/coreboot/Makefile
+++ b/arch/x86/cpu/coreboot/Makefile
@@ -20,5 +20,4 @@ else
 obj-y += sdram.o
 endif
 obj-y += coreboot.o
-obj-y += tables.o
 obj-y += timestamp.o

diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 1bcbb49a61f2281ee5e95b1174f82f2e0593d65b..65d9b3bd6a3c53a788e86ccdadb7dbeff44c0b02 100644 (file)
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -15,6 +15,7 @@ ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
 endif
 obj-y  += cmd_boot.o
+obj-$(CONFIG_$(SPL_)COREBOOT_SYSINFO)  += coreboot/
 obj-$(CONFIG_SEABIOS) += coreboot_table.o
 obj-y  += early_cmos.o
 obj-y  += e820.o

diff --git a/arch/x86/lib/coreboot/Makefile b/arch/x86/lib/coreboot/Makefile
new file mode 100644 (file)
index 0000000..b5250d9
--- /dev/null
+++ b/arch/x86/lib/coreboot/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier:     GPL-2.0+
+#
+# Copyright 2021 Google LLC
+#
+
+obj-y += cb_sysinfo.o

diff --git a/arch/x86/cpu/coreboot/tables.c b/arch/x86/lib/coreboot/cb_sysinfo.c
similarity index 100%
rename from arch/x86/cpu/coreboot/tables.c
rename to arch/x86/lib/coreboot/cb_sysinfo.c