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rpmc: add rpmc commands feature

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Added optional support for all the commands specified in JESD260.
Added a new optional dependency to openssls libcrypto.
Added parsing for the rpmc parameter sfdp table.
Added necessary rpmc parameter information to flashchips struct and the
flash hardening feature to enable rpmc commands.

Enables future use of these commands in the cli_client and also
libflashrom.

Change-Id: I6ab3d0446e9fd674b20550fdbfaf499b8d4a9b38
Signed-off-by: Matti Finder <matti.finder@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/84934
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matti Finder
2024-10-30 16:55:10 +01:00
committed by Anastasia Klimchuk
parent 40d1c25c00
commit 52f062f67a
7 changed files with 819 additions and 10 deletions
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31
include/flash.h
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@ -172,6 +172,11 @@ enum write_granularity {
/* Whether chip has configuration register (RDCR/WRSR_EXT2 commands) */
#define FEATURE_CFGR (1 << 25)
/*
* Whether the chip supports serial flash hardening specified in JESD260
*/
#define FEATURE_FLASH_HARDENING (1 << 26)
#define ERASED_VALUE(flash) (((flash)->chip->feature_bits & FEATURE_ERASED_ZERO) ? 0x00 : 0xff)
#define UNERASED_VALUE(flash) (((flash)->chip->feature_bits & FEATURE_ERASED_ZERO) ? 0xff : 0x00)
@ -543,6 +548,32 @@ struct flashchip {
* and determines what protection range they select.
*/
enum decode_range_func decode_range;
struct rpmc_config {
uint8_t op1_opcode;
uint8_t op2_opcode;
unsigned int num_counters;
/*
* Busy Polling Method :
* ‘0’: Poll for OP1 busy using OP2 Extended Status[0].
* No OP1 Suspended State Support.
* ‘1’: Poll for OP1 busy using Read Status (05H).
* Suspended State is supported.
*/
enum busy_polling_methods {
POLL_OP2_EXTENDED_STATUS = 0,
POLL_READ_STATUS = 1
} busy_polling_method;
unsigned int update_rate;
/* All times in microsecond (us) */
unsigned int polling_delay_read_counter_us;
unsigned int polling_short_delay_write_counter_us;
unsigned int polling_long_delay_write_counter_us;
} rpmc_ctx;
};
typedef int (*chip_restore_fn_cb_t)(struct flashctx *flash, void *data);