78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-08-25 GuEe-GUI first version
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*/
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#ifndef __OFW_FDT_H__
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#define __OFW_FDT_H__
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#include <mm_page.h>
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#include <drivers/ofw.h>
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struct rt_fdt_earlycon
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{
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union { rt_ubase_t mmio, port; };
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union { rt_ubase_t size, width; };
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void *fdt;
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char options[32];
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long nodeoffset;
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void *data;
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void (*console_putc)(void *data, char c);
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#define FDT_EARLYCON_KICK_UPDATE 0
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#define FDT_EARLYCON_KICK_COMPLETED 1
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void (*console_kick)(struct rt_fdt_earlycon *earlycon, int why);
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long msg_idx;
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char msg[RT_FDT_EARLYCON_MSG_SIZE * 1024];
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};
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struct rt_fdt_earlycon_id
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{
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char *name;
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char *type;
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char *compatible;
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rt_err_t (*setup)(struct rt_fdt_earlycon *earlycon, const char *options);
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};
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#define RT_FDT_EARLYCON_EXPORT(_name, _type, _compatible, _setup) \
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static const struct rt_fdt_earlycon_id __rt_fdt_##_name##_earlycon \
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rt_used RT_OFW_SYMBOL(earlycon, _) = \
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{ \
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.name = #_name, \
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.type = _type, \
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.compatible = _compatible, \
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.setup = _setup, \
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}
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const char *rt_fdt_node_name(const char *full_name);
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rt_uint64_t rt_fdt_read_number(const fdt32_t *cell, int size);
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rt_uint64_t rt_fdt_next_cell(const fdt32_t **cellptr, int size);
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rt_uint64_t rt_fdt_translate_address(void *fdt, int nodeoffset, rt_uint64_t address);
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rt_bool_t rt_fdt_device_is_available(void *fdt, int nodeoffset);
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rt_err_t rt_fdt_commit_memregion_early(rt_region_t *region, rt_bool_t is_reserved);
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rt_err_t rt_fdt_commit_memregion_request(rt_region_t **out_region, rt_size_t *out_nr, rt_bool_t is_reserved);
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rt_err_t rt_fdt_prefetch(void *fdt);
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rt_err_t rt_fdt_scan_root(void);
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rt_err_t rt_fdt_scan_memory(void);
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rt_err_t rt_fdt_scan_initrd(rt_uint64_t *ranges);
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rt_err_t rt_fdt_model_dump(void);
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rt_err_t rt_fdt_boot_dump(void);
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void rt_fdt_earlycon_output(const char *str);
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void rt_fdt_earlycon_kick(int why);
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rt_err_t rt_fdt_scan_chosen_stdout(void);
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rt_err_t rt_fdt_unflatten(void);
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struct rt_ofw_node *rt_fdt_unflatten_single(void *fdt);
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#endif /* __OFW_FDT_H__ */
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