mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 21:02:19 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
|
|
* arch/shmedia/boot/compressed/cache.c -- simple cache management functions
|
|
*
|
|
* Code extracted from sh-ipl+g, sh-stub.c, which has the copyright:
|
|
*
|
|
* This is originally based on an m68k software stub written by Glenn
|
|
* Engel at HP, but has changed quite a bit.
|
|
*
|
|
* Modifications for the SH by Ben Lee and Steve Chamberlain
|
|
*
|
|
****************************************************************************
|
|
|
|
THIS SOFTWARE IS NOT COPYRIGHTED
|
|
|
|
HP offers the following for use in the public domain. HP makes no
|
|
warranty with regard to the software or it's performance and the
|
|
user accepts the software "AS IS" with all faults.
|
|
|
|
HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
|
|
TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
****************************************************************************/
|
|
|
|
#define CACHE_ENABLE 0
|
|
#define CACHE_DISABLE 1
|
|
|
|
int cache_control(unsigned int command)
|
|
{
|
|
volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
|
|
int i;
|
|
|
|
for (i = 0; i < (32 * 1024); i += 32) {
|
|
(void *) *p;
|
|
p += (32 / sizeof (int));
|
|
}
|
|
|
|
return 0;
|
|
}
|