AGESA: Move config parameters for non-volatile S3 data

These parameters are not specific to the southbridge device, but
the implementation of S3 storage defined by CPU code.

Change-Id: Ic341cc2b7669cf8e3e920c48473826ec03fc7d8d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6081
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

src/cpu/amd/agesa/Kconfig

@@ -66,6 +66,15 @@ config DCACHE_RAM_BASE
 config DCACHE_RAM_SIZE
 	hex
 	default 0x10000
+
+config S3_DATA_POS
+	hex
+	default 0xFFFF0000
+
+config S3_DATA_SIZE
+	int
+	default 32768
+
 endif # CPU_AMD_AGESA
 
 source src/cpu/amd/agesa/family10/Kconfig

src/cpu/amd/agesa/Makefile.inc

@@ -29,3 +29,18 @@ cpu_incs += $(src)/cpu/amd/agesa/cache_as_ram.inc
 
 romstage-y += heapmanager.c
 ramstage-y += heapmanager.c
+
+ifeq ($(CONFIG_HAVE_ACPI_RESUME), y)
+
+$(obj)/coreboot_s3nv.rom: $(obj)/config.h
+	echo "    S3 NVRAM   $(CONFIG_S3_DATA_POS) (S3 storage area)"
+	# force C locale, so cygwin awk doesn't try to interpret the 0xff below as UTF-8 (or worse)
+	printf %d $(CONFIG_S3_DATA_SIZE) | LC_ALL=C awk '{for (i=0; i<$$1; i++) {printf "%c", 255}}' > $@.tmp
+	mv $@.tmp $@
+
+cbfs-files-y += s3nv
+s3nv-file := $(obj)/coreboot_s3nv.rom
+s3nv-position := $(CONFIG_S3_DATA_POS)
+s3nv-type := raw
+
+endif # CONFIG_HAVE_ACPI_RESUME == y