diff options
Diffstat (limited to 'src/soc/amd/phoenix/include/soc/psp_transfer.h')
| -rw-r--r-- | src/soc/amd/phoenix/include/soc/psp_transfer.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/soc/amd/phoenix/include/soc/psp_transfer.h b/src/soc/amd/phoenix/include/soc/psp_transfer.h new file mode 100644 index 000000000000..a197bb8f83c1 --- /dev/null +++ b/src/soc/amd/phoenix/include/soc/psp_transfer.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* TODO: Update for Phoenix */ + +#ifndef AMD_PHOENIX_PSP_TRANSFER_H +#define AMD_PHOENIX_PSP_TRANSFER_H + +# if (CONFIG_CMOS_RECOVERY_BYTE != 0) +# define CMOS_RECOVERY_BYTE CONFIG_CMOS_RECOVERY_BYTE +# elif CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK) +# error "Must set CONFIG_CMOS_RECOVERY_BYTE" +# endif + +#define CMOS_RECOVERY_MAGIC_VAL 0x96 + +#define TRANSFER_INFO_SIZE 64 +#define TIMESTAMP_BUFFER_SIZE 0x200 + +#define TRANSFER_MAGIC_VAL 0x50544953 + +/* Bit definitions for the psp_info field in the PSP transfer_info_struct */ +#define PSP_INFO_PRODUCTION_MODE 0x00000001UL +#define PSP_INFO_PRODUCTION_SILICON 0x00000002UL +#define PSP_INFO_VALID 0x80000000UL + +/* Area for things that would cause errors in a linker script */ +#if !defined(__ASSEMBLER__) +#include <stdint.h> + +struct transfer_info_struct { + uint32_t magic_val; /* Identifier */ + uint32_t struct_bytes; /* Size of this structure */ + uint32_t buffer_size; /* Size of the transfer buffer area */ + + /* Offsets from start of transfer buffer */ + uint32_t workbuf_offset; + uint32_t console_offset; + uint32_t timestamp_offset; + uint32_t fmap_offset; + + uint32_t unused1[5]; + + /* Fields reserved for the PSP */ + uint64_t timestamp; /* Offset 0x30 */ + uint32_t psp_unused; /* Offset 0x38 */ + uint32_t psp_info; /* Offset 0x3C */ +}; + +_Static_assert(sizeof(struct transfer_info_struct) == TRANSFER_INFO_SIZE, + "TRANSFER_INFO_SIZE is incorrect"); + +/* Make sure the PSP transferred information over to x86 side. */ +int transfer_buffer_valid(const struct transfer_info_struct *ptr); +/* Verify vboot work buffer is valid in transfer buffer */ +void verify_psp_transfer_buf(void); +/* Display the transfer block's PSP_info data */ +void show_psp_transfer_info(void); +/* Replays the pre-x86 cbmem console into the x86 cbmem console */ +void replay_transfer_buffer_cbmemc(void); +/* Called by bootblock_c_entry in the VBOOT_STARTS_BEFORE_BOOTBLOCK case */ +void boot_with_psp_timestamp(uint64_t base_timestamp); + +#endif +#endif /* AMD_PHOENIX_PSP_TRANSFER_H */ |