MIPS: generic/yamon-dt: Pull YAMON DT shim code out of SEAD-3 board

In preparation for supporting other YAMON-using boards (Malta) & sharing
code to translate information from YAMON into device tree properties,
pull the code doing so for the kernel command line, system memory &
serial configuration out of the SEAD-3 board code.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16181/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton
2017-06-02 12:29:51 -07:00
committed by Ralf Baechle
parent efe4a1acdc
commit 571b7e69f7
5 changed files with 251 additions and 174 deletions

View File

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/*
* Copyright (C) 2016 Imagination Technologies
* Author: Paul Burton <paul.burton@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MIPS_ASM_YAMON_DT_H__
#define __MIPS_ASM_YAMON_DT_H__
/**
* yamon_dt_append_cmdline() - Append YAMON-provided command line to /chosen
* @fdt: the FDT blob
*
* Write the YAMON-provided command line to the bootargs property of the
* /chosen node in @fdt.
*
* Return: 0 on success, else -errno
*/
extern __init int yamon_dt_append_cmdline(void *fdt);
/**
* yamon_dt_append_memory() - Append YAMON-provided memory info to /memory
* @fdt: the FDT blob
*
* Generate a /memory node in @fdt based upon memory size information provided
* by YAMON in its environment.
*
* Return: 0 on success, else -errno
*/
extern __init int yamon_dt_append_memory(void *fdt);
/**
* yamon_dt_serial_config() - Append YAMON-provided serial config to /chosen
* @fdt: the FDT blob
*
* Generate a stdout-path property in the /chosen node of @fdt, based upon
* information provided in the YAMON environment about the UART configuration
* of the system.
*
* Return: 0 on success, else -errno
*/
extern __init int yamon_dt_serial_config(void *fdt);
#endif /* __MIPS_ASM_YAMON_DT_H__ */