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google/chromeec: Add temporary storage interface

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Add support functions for the Chrome EC temporary storage interface.

BUG=chrome-os-partner:46049
BRANCH=none
TEST=tested on glados with modified coreboot

Change-Id: Id2bc46df9cb2d82b15e3309e78d07407a622b6f0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: a7e6f693666b162e11eb0611715f10a8f465ad88
Original-Change-Id: Ieefabfc5bcb9d8a5064f0da967c46d0f377ca320
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/315217
Original-Commit-Ready: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13572
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Duncan Laurie
2015-12-01 19:14:09 -08:00
committed by Martin Roth
parent eb31685bbb
commit e2cea4f458
4 changed files with 141 additions and 4 deletions
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8
src/ec/google/chromeec/ec.h
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@@ -19,6 +19,7 @@
#define _EC_GOOGLE_CHROMEEC_EC_H
#include <stddef.h>
#include <stdint.h>
#include "ec_commands.h"
#ifndef __PRE_RAM__
int google_chromeec_i2c_xfer(uint8_t chip, uint8_t addr, int alen,
@@ -41,6 +42,7 @@ void google_chromeec_check_ec_image(int expected_type);
void google_chromeec_check_pd_image(int expected_type);
#endif
int google_chromeec_check_feature(int feature);
uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size);
u16 google_chromeec_get_board_version(void);
u32 google_chromeec_get_events_b(void);
@@ -51,6 +53,12 @@ void google_chromeec_log_events(u32 mask);
int google_chromeec_vbnv_context(int is_read, uint8_t *data, int len);
uint8_t google_chromeec_get_switches(void);
/* Temporary secure storage commands */
int google_chromeec_vstore_supported(void);
int google_chromeec_vstore_info(uint32_t *locked);
int google_chromeec_vstore_read(int slot, uint8_t *data);
int google_chromeec_vstore_write(int slot, uint8_t *data, size_t size);
/* For MEC, access ranges 0x800 thru 0x9ff using EMI interface instead of LPC */
#define MEC_EMI_RANGE_START EC_HOST_CMD_REGION0
#define MEC_EMI_RANGE_END (EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SIZE)