mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 05:50:17 +00:00
e569c73a8e
Drop all duplicate newlines. No functional change. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2000
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
/*
|
|
* Cache support: switch on or off, get status
|
|
*/
|
|
#include <command.h>
|
|
#include <cpu_func.h>
|
|
#include <linux/compiler.h>
|
|
|
|
static int parse_argv(const char *);
|
|
|
|
static int do_icache(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
switch (argc) {
|
|
case 2: /* on / off / flush */
|
|
switch (parse_argv(argv[1])) {
|
|
case 0:
|
|
icache_disable();
|
|
break;
|
|
case 1:
|
|
icache_enable();
|
|
break;
|
|
case 2:
|
|
invalidate_icache_all();
|
|
break;
|
|
default:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
break;
|
|
case 1: /* get status */
|
|
printf("Instruction Cache is %s\n",
|
|
icache_status() ? "ON" : "OFF");
|
|
return 0;
|
|
default:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int do_dcache(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
switch (argc) {
|
|
case 2: /* on / off / flush */
|
|
switch (parse_argv(argv[1])) {
|
|
case 0:
|
|
dcache_disable();
|
|
break;
|
|
case 1:
|
|
dcache_enable();
|
|
#ifdef CONFIG_SYS_NONCACHED_MEMORY
|
|
noncached_set_region();
|
|
#endif
|
|
break;
|
|
case 2:
|
|
flush_dcache_all();
|
|
break;
|
|
default:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
break;
|
|
case 1: /* get status */
|
|
printf("Data (writethrough) Cache is %s\n",
|
|
dcache_status() ? "ON" : "OFF");
|
|
return 0;
|
|
default:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int parse_argv(const char *s)
|
|
{
|
|
if (strcmp(s, "flush") == 0)
|
|
return 2;
|
|
else if (strcmp(s, "on") == 0)
|
|
return 1;
|
|
else if (strcmp(s, "off") == 0)
|
|
return 0;
|
|
|
|
return -1;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
icache, 2, 1, do_icache,
|
|
"enable or disable instruction cache",
|
|
"[on, off, flush]\n"
|
|
" - enable, disable, or flush instruction cache"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
dcache, 2, 1, do_dcache,
|
|
"enable or disable data cache",
|
|
"[on, off, flush]\n"
|
|
" - enable, disable, or flush data (writethrough) cache"
|
|
);
|