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authorArthur Heymans <arthur@aheymans.xyz>2019-10-12 18:06:46 +0200
committerPatrick Georgi <pgeorgi@google.com>2019-10-28 11:59:03 +0000
commit942ad6a137027d6a7d8d082dee20bb64c81dc813 (patch)
treeed6be2c5c998a308eee157c7b740cd5563d29c24 /src/cpu/intel/car/p4-netburst
parent947916eb2d2648c1cf605a6c660b705876835ea5 (diff)
downloadcoreboot-942ad6a137027d6a7d8d082dee20bb64c81dc813.tar.xz
cpu/intel/car: Correctly cache the bootblock with C_ENVIRONMENT_BOOTBLOCK
With CONFIG_C_ENVIRONMENT_BOOTBLOCK it makes more sense to rely on the size of the bootblock over CONFIG_XIP_ROM_SIZE. To make this work, only powers of 2 are allowed as bootblock size. Change-Id: Ic8104ca9c51e4d2eccdb277e4c2111d2da662f3e Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35990 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/cpu/intel/car/p4-netburst')
-rw-r--r--src/cpu/intel/car/p4-netburst/cache_as_ram.S13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/cpu/intel/car/p4-netburst/cache_as_ram.S b/src/cpu/intel/car/p4-netburst/cache_as_ram.S
index b7eb37b6a6..2cd0c5e922 100644
--- a/src/cpu/intel/car/p4-netburst/cache_as_ram.S
+++ b/src/cpu/intel/car/p4-netburst/cache_as_ram.S
@@ -26,6 +26,15 @@
#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE
#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE
+#if CONFIG(C_ENVIRONMENT_BOOTBLOCK)
+#if ((CONFIG_C_ENV_BOOTBLOCK_SIZE & (CONFIG_C_ENV_BOOTBLOCK_SIZE - 1)) != 0)
+#error "CONFIG_C_ENV_BOOTBLOCK_SIZE must be a power of 2!"
+#endif
+#define XIP_ROM_SIZE CONFIG_C_ENV_BOOTBLOCK_SIZE
+#else
+#define XIP_ROM_SIZE CONFIG_XIP_ROM_SIZE
+#endif
+
.global bootblock_pre_c_entry
.code32
@@ -354,13 +363,13 @@ cache_rom:
* https://mail.coreboot.org/pipermail/coreboot/2010-October/060922.html
*/
movl $_program, %eax
- andl $(~(CONFIG_XIP_ROM_SIZE - 1)), %eax
+ andl $(~(XIP_ROM_SIZE - 1)), %eax
orl $MTRR_TYPE_WRPROT, %eax
wrmsr
movl $MTRR_PHYS_MASK(1), %ecx
rdmsr
- movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax
+ movl $(~(XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax
wrmsr
fill_cache: