59675bf682
Add an emulator that supports reading and writing to the it8xxx2 bbram. Signed-off-by: Yuval Peress <peress@google.com>
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/*
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* Copyright (c) 2024 Google Inc
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef INCLUDE_ZEPHYR_DRIVERS_BBRAM_IT8XXX2_H_
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#define INCLUDE_ZEPHYR_DRIVERS_BBRAM_IT8XXX2_H_
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#include <stdint.h>
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#include <zephyr/devicetree.h>
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/** Device config */
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struct bbram_it8xxx2_config {
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/** BBRAM base address */
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uintptr_t base_addr;
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/** BBRAM size (Unit:bytes) */
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int size;
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};
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#ifdef CONFIG_BBRAM_IT8XXX2_EMUL
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#define BBRAM_IT8XXX2_DECL_CONFIG(inst) \
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static uint8_t bbram_it8xxx2_emul_buffer_##inst[DT_INST_REG_SIZE(inst)]; \
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static const struct bbram_it8xxx2_config bbram_cfg_##inst = { \
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.base_addr = (uintptr_t)bbram_it8xxx2_emul_buffer_##inst, \
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.size = DT_INST_REG_SIZE(inst), \
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}
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#else
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#define BBRAM_IT8XXX2_DECL_CONFIG(inst) \
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static const struct bbram_it8xxx2_config bbram_cfg_##inst = { \
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.base_addr = DT_INST_REG_ADDR(inst), \
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.size = DT_INST_REG_SIZE(inst), \
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}
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#endif
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#endif /* INCLUDE_ZEPHYR_DRIVERS_BBRAM_IT8XXX2_H_ */
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