lib: ramdetect: Add Kconfig PROBE_RAM
Previously ramdetect.c was compiled only for VENDOR_EMULATION.
Hence add Kconfig option PROBE_RAM which allows board outside
the scope of VENDOR_EMULATION to select and utilize probe_ram
function to runtime detect usable RAM in emulation environment.
PROBE_RAM is default selected if VENDOR_EMULATION is set so
that existing boards under VENDOR_EMULATION scope are not
affected.
Other boards can explicitly select PROBE_RAM to use probe_ram.
TEST=Build mb/arm/rdn2 with PROBE_RAM selected & make sure
there is no any error.
Also checked qemu-aarch64 build to make sure build is success.
Change-Id: Id909ddaee6958cfa8a6c263a11f9a90d94710aa7
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79450
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/lib/Kconfig b/src/lib/Kconfig
index 2364794..80efe75 100644
--- a/src/lib/Kconfig
+++ b/src/lib/Kconfig
@@ -143,3 +143,9 @@
default y
help
Compile the decompressing function in -Ofast instead of standard -Os
+
+config PROBE_RAM
+ def_bool y if VENDOR_EMULATION
+ help
+ When enabled it will be possible to detect usable RAM using probe_ram
+ function.
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index 0f46008..fd3f464 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -83,7 +83,7 @@
verstage-$(CONFIG_GENERIC_UDELAY) += timer.c
verstage-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
-romstage-$(CONFIG_VENDOR_EMULATION) += ramdetect.c
+romstage-$(CONFIG_PROBE_RAM) += ramdetect.c
romstage-y += prog_loaders.c
romstage-y += prog_ops.c
romstage-y += memchr.c
@@ -129,7 +129,7 @@
romstage-$(CONFIG_GENERIC_UDELAY) += timer.c
-ramstage-$(CONFIG_VENDOR_EMULATION) += ramdetect.c
+ramstage-$(CONFIG_PROBE_RAM) += ramdetect.c
ramstage-y += prog_loaders.c
ramstage-y += prog_ops.c
ramstage-y += hardwaremain.c
@@ -183,7 +183,7 @@
ramstage-y += imd_cbmem.c
ramstage-y += imd.c
-postcar-$(CONFIG_VENDOR_EMULATION) += ramdetect.c
+postcar-$(CONFIG_PROBE_RAM) += ramdetect.c
postcar-y += cbmem_common.c
postcar-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
postcar-y += imd_cbmem.c