b5c0984eb1
The value read from unwritten areas of Renesas RAxxx SoCs data flash is undefined. To prevent reading unwritten areas a blank check command is performed first. If the area is blank, we return dummy data so it behaves the same as other flash devices. Signed-off-by: Jeremy Dick <jdick@pivotint.com>
124 lines
4.6 KiB
C
124 lines
4.6 KiB
C
/*
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* Copyright (c) 2024-2025 Renesas Electronics Corporation
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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_SOC_FLASH_RENESAS_RA_HP_H_
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#define ZEPHYR_DRIVERS_FLASH_SOC_FLASH_RENESAS_RA_HP_H_
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#include <zephyr/drivers/flash.h>
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#include <zephyr/sys/atomic.h>
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#include <instances/r_flash_hp.h>
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#include <api/r_flash_api.h>
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#include <zephyr/drivers/flash/ra_flash_api_extensions.h>
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#define FLASH_HP_CF_START_ADDRESS DT_REG_ADDR(DT_NODELABEL(flash0))
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#define FLASH_HP_DF_START_ADDRESS DT_REG_ADDR(DT_NODELABEL(flash1))
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#define FLASH_HP_CF_SIZE DT_REG_SIZE(DT_NODELABEL(flash0))
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#define FLASH_HP_DF_SIZE DT_REG_SIZE(DT_NODELABEL(flash1))
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#define FLASH_HP_VERSION DT_PROP(DT_PARENT(DT_NODELABEL(flash0)), flash_hardware_version)
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#if (FLASH_HP_VERSION == 40)
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#define FLASH_HP_CF_REGION0_BLOCKS_COUNT \
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DT_PHA_BY_IDX(DT_NODELABEL(flash0), erase_blocks, 0, pages_count)
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#define FLASH_HP_CF_REGION0_BLOCK_SIZE \
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DT_PHA_BY_IDX(DT_NODELABEL(flash0), erase_blocks, 0, pages_size)
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#define FLASH_HP_CF_REGION0_SIZE (FLASH_HP_CF_REGION0_BLOCKS_COUNT * FLASH_HP_CF_REGION0_BLOCK_SIZE)
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BUILD_ASSERT(FLASH_HP_CF_REGION0_BLOCK_SIZE == BSP_FEATURE_FLASH_HP_CF_REGION0_BLOCK_SIZE,
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"erase-block-size expected to be equal with block size");
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#define FLASH_HP_CF_REGION1_BLOCKS_COUNT \
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DT_PHA_BY_IDX(DT_NODELABEL(flash0), erase_blocks, 1, pages_count)
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#define FLASH_HP_CF_REGION1_BLOCK_SIZE \
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DT_PHA_BY_IDX(DT_NODELABEL(flash0), erase_blocks, 1, pages_size)
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BUILD_ASSERT(FLASH_HP_CF_REGION1_BLOCK_SIZE == BSP_FEATURE_FLASH_HP_CF_REGION1_BLOCK_SIZE,
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"erase-block-size expected to be equal with block size");
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#define FLASH_HP_CF_LAYOUT_SIZE (2UL)
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#define FLASH_HP_CF_END_BLOCK (FLASH_HP_CF_REGION0_BLOCKS_COUNT + FLASH_HP_CF_REGION1_BLOCKS_COUNT)
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#elif (FLASH_HP_VERSION == 4)
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#define FLASH_HP_CF_REGION0_BLOCKS_COUNT \
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DT_PHA_BY_IDX(DT_NODELABEL(flash0), erase_blocks, 0, pages_count)
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#define FLASH_HP_CF_REGION0_BLOCK_SIZE \
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DT_PHA_BY_IDX(DT_NODELABEL(flash0), erase_blocks, 0, pages_size)
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#define FLASH_HP_CF_REGION0_SIZE (FLASH_HP_CF_REGION0_BLOCKS_COUNT * FLASH_HP_CF_REGION0_BLOCK_SIZE)
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BUILD_ASSERT(FLASH_HP_CF_REGION0_BLOCK_SIZE == BSP_FEATURE_FLASH_HP_CF_REGION0_BLOCK_SIZE,
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"erase-block-size expected to be equal with block size");
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#define FLASH_HP_CF_LAYOUT_SIZE (1UL)
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#define FLASH_HP_CF_END_BLOCK FLASH_HP_CF_REGION0_BLOCKS_COUNT
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#endif
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#define FLASH_HP_DF_LAYOUT_SIZE (1UL)
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#define FLASH_HP_DF_BLOCK_SIZE DT_PROP(DT_NODELABEL(flash1), erase_block_size)
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#define FLASH_HP_DF_BLOCKS_COUNT (FLASH_HP_DF_SIZE / FLASH_HP_DF_BLOCK_SIZE)
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#define FLASH_HP_DF_END_BLOCK FLASH_HP_DF_BLOCKS_COUNT
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BUILD_ASSERT(FLASH_HP_DF_BLOCK_SIZE == BSP_FEATURE_FLASH_HP_DF_BLOCK_SIZE,
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"erase-block-size expected to be equal with block size");
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#if defined(CONFIG_FLASH_EX_OP_ENABLED)
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#define FLASH_HP_FCU_CONFIG_SET_BPS (0x1300A1C0U)
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#define FLASH_HP_FCU_CONFIG_SET_BPS_SEC (0x0300A240U)
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#define FLASH_HP_FCU_CONFIG_SET_BPS_SEL (0x0300A2C0U)
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#define FLASH_HP_FCU_CONFIG_SET_PBPS (0x1300A1E0U)
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#define FLASH_HP_FCU_CONFIG_SET_PBPS_SEC (0x0300A260U)
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#endif /* CONFIG_FLASH_EX_OP_ENABLED */
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/* Zero based offset into g_configuration_area_data[] for BPS */
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#define FLASH_HP_FCU_CONFIG_SET_BPS_OFFSET (0U)
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enum flash_region {
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CODE_FLASH,
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DATA_FLASH,
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};
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#if defined(CONFIG_FLASH_RENESAS_RA_HP_BGO)
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#define FLASH_FLAG_ERASE_COMPLETE BIT(0)
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#define FLASH_FLAG_WRITE_COMPLETE BIT(1)
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#define FLASH_FLAG_GET_ERROR BIT(2)
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#if defined(CONFIG_FLASH_RENESAS_RA_HP_CHECK_BEFORE_READING)
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#define FLASH_FLAG_BLANK BIT(3)
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#define FLASH_FLAG_NOT_BLANK BIT(4)
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#endif /* CONFIG_FLASH_RENESAS_RA_HP_CHECK_BEFORE_READING */
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#endif /* CONFIG_FLASH_RENESAS_RA_HP_BGO */
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struct flash_hp_ra_controller {
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struct st_flash_hp_instance_ctrl flash_ctrl;
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struct k_sem ctrl_sem;
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struct st_flash_cfg fsp_config;
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atomic_t flags;
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};
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struct flash_hp_ra_data {
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struct flash_hp_ra_controller *controller;
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enum flash_region FlashRegion;
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uint32_t area_address;
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uint32_t area_size;
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};
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struct flash_hp_ra_config {
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struct flash_parameters flash_ra_parameters;
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};
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#if defined(CONFIG_FLASH_RENESAS_RA_HP_WRITE_PROTECT)
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int flash_ra_ex_op_write_protect(const struct device *dev, const uintptr_t in, void *out);
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#endif /* CONFIG_FLASH_RENESAS_RA_HP_WRITE_PROTECT */
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#endif /* ZEPHYR_DRIVERS_FLASH_SOC_FLASH_RENESAS_RA_HP_H_ */
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