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https://github.com/AsahiLinux/u-boot
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12d7827349
This function can be used by other modules. Also add comments. Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/20230110105650.54580-2-avromanov@sberdevices.ru Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2016 - Beniamino Galvani <b.galvani@gmail.com>
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*/
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#ifndef __MESON_SM_H__
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#define __MESON_SM_H__
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/**
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* meson_sm_read_efuse - read efuse memory into buffer
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*
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* @offset: offset from the start efuse memory
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* @buffer: pointer to buffer
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* @size: number of bytes to read
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* @return: number of bytes read
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*/
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ssize_t meson_sm_read_efuse(uintptr_t offset, void *buffer, size_t size);
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/**
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* meson_sm_write_efuse - write into efuse memory from buffer
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*
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* @offset: offset from the start efuse memory
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* @buffer: pointer to buffer
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* @size: number of bytes to write
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* @return: number of bytes written
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*/
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ssize_t meson_sm_write_efuse(uintptr_t offset, void *buffer, size_t size);
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#define SM_SERIAL_SIZE 12
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/**
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* meson_sm_get_serial - read chip unique id into buffer
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*
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* @buffer: pointer to buffer
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* @size: buffer size.
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* @return: zero on success or -errno on failure
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*/
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int meson_sm_get_serial(void *buffer, size_t size);
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enum {
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REBOOT_REASON_COLD = 0,
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REBOOT_REASON_NORMAL = 1,
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REBOOT_REASON_RECOVERY = 2,
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REBOOT_REASON_UPDATE = 3,
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REBOOT_REASON_FASTBOOT = 4,
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REBOOT_REASON_SUSPEND_OFF = 5,
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REBOOT_REASON_HIBERNATE = 6,
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REBOOT_REASON_BOOTLOADER = 7,
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REBOOT_REASON_SHUTDOWN_REBOOT = 8,
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REBOOT_REASON_RPMBP = 9,
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REBOOT_REASON_CRASH_DUMP = 11,
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REBOOT_REASON_KERNEL_PANIC = 12,
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REBOOT_REASON_WATCHDOG_REBOOT = 13,
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};
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/**
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* meson_sm_get_reboot_reason - get reboot reason
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*/
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int meson_sm_get_reboot_reason(void);
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#endif /* __MESON_SM_H__ */
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