51363ae7c2
This supports three types GD32 FMC flash memory. GD32 FMC v1, GD32 FMC v2 and GD32 FMC v3. GD32 FMC v1 for small flash memory, flash size can be up to 512KB. GD32 FMC v2 for large flash memory, flash size can be up to 3072KB. GD32 FMC v3 not use page but sector as minimum block, flash size can be up to 3072KB. Signed-off-by: HaiLong Yang <hailong.yang@brainco.cn>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/*
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* Copyright (c) 2022 BrainCo Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_FLASH_FLASH_GD32_H_
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#define ZEPHYR_DRIVERS_FLASH_FLASH_GD32_H_
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#include <stdint.h>
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#include <zephyr/devicetree.h>
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#include <zephyr/drivers/flash.h>
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#define SOC_NV_FLASH_NODE DT_INST(0, soc_nv_flash)
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#define SOC_NV_FLASH_SIZE DT_REG_SIZE(SOC_NV_FLASH_NODE)
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#define SOC_NV_FLASH_ADDR DT_REG_ADDR(SOC_NV_FLASH_NODE)
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#define SOC_NV_FLASH_PRG_SIZE DT_PROP(SOC_NV_FLASH_NODE, write_block_size)
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#if (4 == SOC_NV_FLASH_PRG_SIZE)
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typedef uint32_t flash_prg_t;
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#elif (2 == SOC_NV_FLASH_PRG_SIZE)
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typedef uint16_t flash_prg_t;
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#elif (1 == SOC_NV_FLASH_PRG_SIZE)
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typedef uint8_t flash_prg_t;
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#else
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#error "Invalid write-block-size value in FMC DTS"
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#endif
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/* Helper for conditional compilation directives, KB cannot be used because it has type casting. */
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#define PRE_KB(x) ((x) << 10)
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bool flash_gd32_valid_range(off_t offset, uint32_t len, bool write);
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int flash_gd32_write_range(off_t offset, const void *data, size_t len);
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int flash_gd32_erase_block(off_t offset, size_t size);
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#ifdef CONFIG_FLASH_PAGE_LAYOUT
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void flash_gd32_pages_layout(const struct device *dev,
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const struct flash_pages_layout **layout,
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size_t *layout_size);
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#endif
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#endif /* ZEPHYR_DRIVERS_FLASH_FLASH_GD32_H_ */
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