forked from Minki/linux
2e60161337
Currently, all OF-related code in the bootloader is contained in of.c. of.c also provides the platform specific things necessary to boot on an OF platform. However, there are platforms (such as PReP) which can include an OF implementation, but are not bootable as pure OF systems. For use by such platforms, this patch splits out the low-level parts of the OF code (call_prom() and various wrappers thereof) into a new oflib.c file. In addition, the code related to bootwrapper console output via OF are moved to a new ofconsole.c file. Both these files are included in the wrapper.a library where they can be used by both full-OF and partial OF platforms. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
46 lines
962 B
C
46 lines
962 B
C
/*
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* OF console routines
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*
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* Copyright (C) Paul Mackerras 1997.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <stddef.h>
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#include "types.h"
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#include "elf.h"
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#include "string.h"
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#include "stdio.h"
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#include "page.h"
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#include "ops.h"
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#include "of.h"
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static void *of_stdout_handle;
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static int of_console_open(void)
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{
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void *devp;
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if (((devp = finddevice("/chosen")) != NULL)
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&& (getprop(devp, "stdout", &of_stdout_handle,
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sizeof(of_stdout_handle))
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== sizeof(of_stdout_handle)))
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return 0;
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return -1;
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}
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static void of_console_write(char *buf, int len)
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{
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of_call_prom("write", 3, 1, of_stdout_handle, buf, len);
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}
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void of_console_init(void)
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{
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console_ops.open = of_console_open;
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console_ops.write = of_console_write;
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}
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