mirror of
https://github.com/linuxboot/heads.git
synced 2024-12-29 17:28:54 +00:00
51 lines
1.6 KiB
Diff
51 lines
1.6 KiB
Diff
|
From 92023c6cfc3db86f9236a01897754a1579afdf64 Mon Sep 17 00:00:00 2001
|
||
|
From: Arthur Heymans <arthur@aheymans.xyz>
|
||
|
Date: Sun, 17 Nov 2019 12:20:30 +0100
|
||
|
Subject: [PATCH] lib/fmap.c: Properly handle cache for
|
||
|
!C_ENVIRONMENT_BOOTBLOCK
|
||
|
|
||
|
On platforms without C_ENVIRONMENT_BOOTBLOCK the first stage
|
||
|
accessing FMAP is romstage.
|
||
|
|
||
|
Change-Id: I7d70585b0c076707e73e20c2ed3f11e4c9ffdf37
|
||
|
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
|
||
|
---
|
||
|
src/lib/fmap.c | 14 ++++++++++----
|
||
|
1 file changed, 10 insertions(+), 4 deletions(-)
|
||
|
|
||
|
diff --git a/src/lib/fmap.c b/src/lib/fmap.c
|
||
|
index 48aab8f3d5..06e9e202b6 100644
|
||
|
--- a/src/lib/fmap.c
|
||
|
+++ b/src/lib/fmap.c
|
||
|
@@ -58,6 +58,12 @@ static void report(const struct fmap *fmap)
|
||
|
car_set_var(fmap_print_once, 1);
|
||
|
}
|
||
|
|
||
|
+#if CONFIG(C_ENVIRONMENT_BOOTBLOCK)
|
||
|
+#define FIRST_C_STAGE ENV_BOOTBLOCK
|
||
|
+#else
|
||
|
+#define FIRST_C_STAGE ENV_ROMSTAGE
|
||
|
+#endif
|
||
|
+
|
||
|
static void setup_preram_cache(struct mem_region_device *cache_mrdev)
|
||
|
{
|
||
|
if (CONFIG(NO_FMAP_CACHE))
|
||
|
@@ -81,10 +87,10 @@ static void setup_preram_cache(struct mem_region_device *cache_mrdev)
|
||
|
}
|
||
|
|
||
|
struct fmap *fmap = (struct fmap *)_fmap_cache;
|
||
|
- if (!ENV_BOOTBLOCK) {
|
||
|
- /* NOTE: This assumes that for all platforms running this code,
|
||
|
- the bootblock is the first stage and the bootblock will make
|
||
|
- at least one FMAP access (usually from finding CBFS). */
|
||
|
+ /* NOTE: This assumes that for all platforms running this code,
|
||
|
+ the first stage running in a C (!romcc) environment does
|
||
|
+ at least one FMAP access (usually from finding CBFS). */
|
||
|
+ if (!FIRST_C_STAGE) {
|
||
|
if (!check_signature(fmap))
|
||
|
goto register_cache;
|
||
|
|
||
|
--
|
||
|
2.20.1
|
||
|
|