40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
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/* flashchip.h
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*
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* sdk_flashchip_t structure used by the SDK and some bootrom routines
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*
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* This is in a separate include file because it's referenced by several other
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* headers which are otherwise independent of each other.
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*
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* Part of esp-open-rtos
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* Copyright (C) 2015 Alex Stewart and Angus Gratton
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* BSD Licensed as described in the file LICENSE
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*/
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#ifndef _FLASHCHIP_H
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#define _FLASHCHIP_H
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/* SDK/bootrom uses this structure internally to account for flash size.
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chip_size field is initialised during startup from the flash size
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saved in the image header (on the first 8 bytes of SPI flash).
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Other field are initialised to hardcoded values by the SDK.
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** NOTE: This structure is passed to some bootrom routines and is therefore
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fixed. Be very careful if you want to change it that you do not break
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things. **
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Based on RE work by @foogod at
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http://esp8266-re.foogod.com/wiki/Flashchip_%28IoT_RTOS_SDK_0.9.9%29
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*/
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typedef struct {
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uint32_t device_id;
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uint32_t chip_size; /* in bytes */
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uint32_t block_size; /* in bytes */
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uint32_t sector_size; /* in bytes */
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uint32_t page_size; /* in bytes */
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uint32_t status_mask;
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} sdk_flashchip_t;
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#endif /* _FLASHCHIP_H */
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