diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2020-12-09 13:29:26 +0100 |
|---|---|---|
| committer | Lean Sheng Tan <sheng.tan@9elements.com> | 2024-04-04 12:32:59 +0000 |
| commit | 9099a6bb4d1e1fc717cb090e3cd39b32f0045289 (patch) | |
| tree | 7cae51cf0cc9f723b1cc596204733c9924f948a9 /src/soc/intel | |
| parent | e79d97bc3bd88f6723db00e0ac540fd2e0d0a592 (diff) | |
drivers/intel/fsp2_0: Support FSP-T in long mode
Call into FSP-T using the protected mode wrapper
and enter long mode in FSP-T support assembly code.
TEST: Booted on ibm/sbp1 in long mode.
Change-Id: Id6b9780b06b4bfbb952e32091ffbf3d0014f2090
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S b/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S index 238a57e99f..c6d2a9c6da 100644 --- a/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S +++ b/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S @@ -1,8 +1,9 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ -#include <device/pci_def.h> +#include <cpu/x86/64bit/entry64.inc> #include <cpu/x86/cr.h> #include <cpu/x86/post_code.h> +#include <device/pci_def.h> #include <intelblocks/post_codes.h> #define CBFS_FILE_MAGIC 0 @@ -15,6 +16,8 @@ .extern temp_ram_init_params +.code32 + .global bootblock_pre_c_entry bootblock_pre_c_entry: @@ -88,10 +91,19 @@ CAR_init_done: pop %ecx movl %ecx, temp_memory_start +#if ENV_X86_64 + setup_longmode $PM4LE + movl %ebp, %edi + shlq $32, %rdi + movd %mm1, %rsi + or %rsi, %rdi + andl $0xfffffff0, %esp +#else /* Restore the timestamp from bootblock_crt0.S (ebp:mm1) */ push %ebp movd %mm1, %eax push %eax +#endif /* Copy .data section content to Cache-As-Ram */ #include <cpu/x86/copy_data_section.inc> |