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6e3e0f87b1
This patch adds Cros Board Info APIs. It reads board info from EEPROM. This patch sets CONFIG_CBI for Fizz to make it use CBI. BUG=b:70294260 BRANCH=none TEST=Read data from EEPROM. Change-Id: I7eb4323188817d46b0450f1d65ac34d1b7e4e220 Reviewed-on: https://chromium-review.googlesource.com/707741 Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org> Tested-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Cros Board Info
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*/
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#ifndef __CROS_EC_CROS_BOARD_INFO_H
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#define __CROS_EC_CROS_BOARD_INFO_H
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#include "common.h"
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#define CBI_VERSION_MAJOR 0
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#define CBI_VERSION_MINOR 0
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static const uint8_t cbi_magic[] = { 0x43, 0x42, 0x49 }; /* 'C' 'B' 'I' */
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struct cbi_header {
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uint8_t magic[3];
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/* CRC of 'struct board_info' excluding magic and crc */
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uint8_t crc;
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/* Data format version. Parsers are expected to process data as long
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* as major version is equal or younger. */
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union {
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struct {
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uint8_t minor_version;
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uint8_t major_version;
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};
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uint16_t version;
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};
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/* Total size of data. It can be larger than sizeof(struct board_info)
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* if future versions add additional fields. */
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uint16_t total_size;
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} __attribute__((packed));
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struct board_info {
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struct cbi_header head;
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/* Board version */
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union {
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struct {
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uint8_t minor_version;
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uint8_t major_version;
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};
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uint16_t version;
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};
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/* OEM ID */
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uint8_t oem_id;
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/* SKU ID */
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uint8_t sku_id;
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} __attribute__((packed));
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/**
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* Board info accessors
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*
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* @param version/sku_id/oem_id [OUT] Data read from EEPROM
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* @return EC_SUCCESS on success or EC_ERROR_* otherwise.
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*/
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int cbi_get_board_version(uint32_t *version);
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int cbi_get_sku_id(uint32_t *sku_id);
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int cbi_get_oem_id(uint32_t *oem_id);
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#endif /* __CROS_EC_CROS_BOARD_INFO_H */
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