forked from Mirrors/opensbi
0a0093b0bc
We add fdt_parse_uart8250_node() function which will allow us to parse a particular DT node as UART 8250 node. This will be useful in parsing the node pointed by stdout-path. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
39 lines
940 B
C
39 lines
940 B
C
// SPDX-License-Identifier: BSD-2-Clause
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/*
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* fdt_helper.h - Flat Device Tree parsing helper routines
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* Implement helper routines to parse FDT nodes on top of
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* libfdt for OpenSBI usage
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*
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* Copyright (C) 2020 Bin Meng <bmeng.cn@gmail.com>
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*/
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#ifndef __FDT_HELPER_H__
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#define __FDT_HELPER_H__
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struct platform_uart_data {
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unsigned long addr;
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unsigned long freq;
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unsigned long baud;
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unsigned long reg_shift;
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unsigned long reg_io_width;
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};
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struct platform_plic_data {
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unsigned long addr;
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unsigned long num_src;
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};
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int fdt_parse_uart8250_node(void *fdt, int nodeoffset,
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struct platform_uart_data *uart);
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int fdt_parse_uart8250(void *fdt, struct platform_uart_data *uart,
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const char *compatible);
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int fdt_parse_plic(void *fdt, struct platform_plic_data *plic,
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const char *compatible);
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int fdt_parse_clint(void *fdt, unsigned long *clint_addr,
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const char *compatible);
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#endif /* __FDT_HELPER_H__ */
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