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Import of the watch repository from Pebble

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Matthieu Jeanson 2024-12-12 16:43:03 -08:00 • committed by Katharine Berry
commit 3b92768480
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platform/robert/boot/src/flash_region.h Normal file
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/*
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#define PAGE_SIZE_BYTES (0x100)
#define SECTOR_SIZE_BYTES (0x10000)
#define SECTOR_ADDR_MASK (~(SECTOR_SIZE_BYTES - 1))
#define SUBSECTOR_SIZE_BYTES (0x1000)
#define SUBSECTOR_ADDR_MASK (~(SUBSECTOR_SIZE_BYTES - 1))
// A bit of preprocessor magic to help with automatically calculating flash region addresses
//////////////////////////////////////////////////////////////////////////////
#define FLASH_REGION_DEF(MACRO, arg) \
MACRO(FIRMWARE_SCRATCH, 0x200000 /* 2048k */, arg) \
MACRO(SYSTEM_RESOURCES_BANK_0, 0x100000 /* 1024k */, arg) \
MACRO(SYSTEM_RESOURCES_BANK_1, 0x100000 /* 1024k */, arg) \
MACRO(SAFE_FIRMWARE, 0x080000 /* 512k */, arg) \
MACRO(DEBUG_DB, 0x020000 /* 128k */, arg) \
MACRO(MFG_INFO, 0x020000 /* 128k */, arg) \
MACRO(FILESYSTEM, 0xB30000 /* 11456k */, arg) \
MACRO(RSVD, 0x00F000 /* 60k */, arg) \
MACRO(SHARED_PRF_STORAGE, 0x001000 /* 4k */, arg)
#include "flash_region_def_helper.h"
// Flash region _BEGIN and _END addresses
//////////////////////////////////////////////////////////////////////////////
#define FLASH_REGION_FIRMWARE_SCRATCH_BEGIN FLASH_REGION_START_ADDR(FIRMWARE_SCRATCH)
#define FLASH_REGION_FIRMWARE_SCRATCH_END FLASH_REGION_END_ADDR(FIRMWARE_SCRATCH)
#define FLASH_REGION_SAFE_FIRMWARE_BEGIN FLASH_REGION_START_ADDR(SAFE_FIRMWARE)
#define FLASH_REGION_SAFE_FIRMWARE_END FLASH_REGION_END_ADDR(SAFE_FIRMWARE)
#define FLASH_REGION_MFG_INFO_BEGIN FLASH_REGION_START_ADDR(MFG_INFO)
#define FLASH_REGION_MFG_INFO_END FLASH_REGION_END_ADDR(MFG_INFO)
#define BOARD_NOR_FLASH_SIZE FLASH_REGION_START_ADDR(_COUNT)
// Static asserts to make sure everything worked out
//////////////////////////////////////////////////////////////////////////////
// make sure all the sizes are multiples of the subsector size (4k)
FLASH_REGION_SIZE_CHECK(SUBSECTOR_SIZE_BYTES)
// make sure the total size is what we expect (16MB for robert)
_Static_assert(BOARD_NOR_FLASH_SIZE == 0x1000000, "Flash size should be 16MB");