When SeaBIOS is being used, U-Boot reserves a memory area to be
used for configuration tables like ACPI. But it should not be
cleared otherwise ACPI table will be missing.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
Changes in v2:
- new patch "Do not clear high table area for S3"
- drop patch "x86: fsp: Mark the first 64K low memory as reserved"
as it causes boot failure on GRUB
arch/x86/lib/coreboot_table.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/x86/lib/coreboot_table.c b/arch/x86/lib/coreboot_table.c
index ceab3cf..b1b4cd9 100644
--- a/arch/x86/lib/coreboot_table.c
+++ b/arch/x86/lib/coreboot_table.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <vbe.h>
+#include <asm/acpi_s3.h>
#include <asm/coreboot_tables.h>
#include <asm/e820.h>
@@ -19,7 +20,11 @@ int high_table_reserve(void)
gd->arch.high_table_ptr = gd->start_addr_sp;
/* clear the memory */
- memset((void *)gd->arch.high_table_ptr, 0, CONFIG_HIGH_TABLE_SIZE);
+#ifdef CONFIG_HAVE_ACPI_RESUME
+ if (gd->arch.prev_sleep_state != ACPI_S3)
+#endif
+ memset((void *)gd->arch.high_table_ptr, 0,
+ CONFIG_HIGH_TABLE_SIZE);
gd->start_addr_sp &= ~0xf;
--
2.9.2
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
