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-rw-r--r--src/arch/x86/Kconfig17
-rw-r--r--src/lib/cbfs.c8
2 files changed, 25 insertions, 0 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig
index b0e479b1c4..90ece988c0 100644
--- a/src/arch/x86/Kconfig
+++ b/src/arch/x86/Kconfig
@@ -160,6 +160,23 @@ config PRERAM_CBFS_CACHE_SIZE
Define the size of the Pre-RAM stages CBFS cache. A size of
zero disables the CBFS cache feature in pre-memory stages.
+config POSTRAM_CBFS_CACHE_IN_BSS
+ bool
+ default y if !SOC_AMD_COMMON_BLOCK_NONCAR
+ help
+ Allocate the post-memory CBFS cache scratchpad in the .bss
+ section. CBFS cache will rely on a simple static C buffer
+ while traditionally CBFS cache memory region is reserved in
+ the device memory layout.
+
+config RAMSTAGE_CBFS_CACHE_SIZE
+ hex
+ default 0x4000
+ depends on POSTRAM_CBFS_CACHE_IN_BSS
+ help
+ Define the size of the ramstage CBFS cache. A size of zero
+ disables the CBFS cache feature in ramstage.
+
config PC80_SYSTEM
bool
default y if ARCH_X86
diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c
index 8c3db4bd91..1663517921 100644
--- a/src/lib/cbfs.c
+++ b/src/lib/cbfs.c
@@ -20,8 +20,16 @@
#include <thread.h>
#include <timestamp.h>
+#if ENV_X86 && (ENV_POSTCAR || ENV_SMM)
+struct mem_pool cbfs_cache = MEM_POOL_INIT(NULL, 0, 0);
+#elif CONFIG(POSTRAM_CBFS_CACHE_IN_BSS) && ENV_RAMSTAGE
+static u8 cache_buffer[CONFIG_RAMSTAGE_CBFS_CACHE_SIZE];
+struct mem_pool cbfs_cache =
+ MEM_POOL_INIT(cache_buffer, sizeof(cache_buffer), CONFIG_CBFS_CACHE_ALIGN);
+#else
struct mem_pool cbfs_cache =
MEM_POOL_INIT(_cbfs_cache, REGION_SIZE(cbfs_cache), CONFIG_CBFS_CACHE_ALIGN);
+#endif
static void switch_to_postram_cache(int unused)
{