// SPDX-License-Identifier: BSD-2-Clause /* * fdt_helper.h - Flat Device Tree parsing helper routines * Implement helper routines to parse FDT nodes on top of * libfdt for OpenSBI usage * * Copyright (C) 2020 Bin Meng */ #ifndef __FDT_HELPER_H__ #define __FDT_HELPER_H__ #include struct fdt_match { const char *compatible; void *data; }; struct platform_uart_data { unsigned long addr; unsigned long freq; unsigned long baud; unsigned long reg_shift; unsigned long reg_io_width; }; const struct fdt_match *fdt_match_node(void *fdt, int nodeoff, const struct fdt_match *match_table); int fdt_find_match(void *fdt, int startoff, const struct fdt_match *match_table, const struct fdt_match **out_match); int fdt_get_node_addr_size(void *fdt, int node, unsigned long *addr, unsigned long *size); int fdt_parse_hart_id(void *fdt, int cpu_offset, u32 *hartid); int fdt_parse_max_hart_id(void *fdt, u32 *max_hartid); int fdt_parse_shakti_uart_node(void *fdt, int nodeoffset, struct platform_uart_data *uart); int fdt_parse_sifive_uart_node(void *fdt, int nodeoffset, struct platform_uart_data *uart); int fdt_parse_uart8250_node(void *fdt, int nodeoffset, struct platform_uart_data *uart); int fdt_parse_uart8250(void *fdt, struct platform_uart_data *uart, const char *compatible); struct plic_data; int fdt_parse_plic_node(void *fdt, int nodeoffset, struct plic_data *plic); int fdt_parse_plic(void *fdt, struct plic_data *plic, const char *compat); struct clint_data; int fdt_parse_clint_node(void *fdt, int nodeoffset, bool for_timer, struct clint_data *clint); int fdt_parse_compat_addr(void *fdt, unsigned long *addr, const char *compatible); #endif /* __FDT_HELPER_H__ */