From 9df731a176aab8e03b984b681b1bea01ccff6644 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 06 Nov 2023 07:23:06 +0000
Subject: [PATCH] rk3568 rt uboot init
---
u-boot/cmd/cache.c | 28 +++++++++++++++++++++++++---
1 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/u-boot/cmd/cache.c b/u-boot/cmd/cache.c
index 37ab345..004dcc2 100644
--- a/u-boot/cmd/cache.c
+++ b/u-boot/cmd/cache.c
@@ -54,7 +54,24 @@
static int do_dcache(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
+ ulong start, size;
+
switch (argc) {
+ case 4:
+ start = simple_strtoul(argv[2], NULL, 16);
+ size = simple_strtoul(argv[3], NULL, 16);
+
+ switch (parse_argv(argv[1])) {
+ case 2:
+ printf("flush dcache: 0x%08lx - 0x%08lx\n", start, start + size);
+ flush_dcache_range(start, start + size);
+ break;
+ case 3:
+ printf("invalidate dcache: 0x%08lx - 0x%08lx\n", start, start + size);
+ invalidate_dcache_range(start, start + size);
+ break;
+ }
+ break;
case 2: /* on / off */
switch (parse_argv(argv[1])) {
case 0:
@@ -65,6 +82,9 @@
break;
case 2:
flush_dcache_all();
+ break;
+ case 3:
+ printf("error: dcache invalidate require [start] [size]\n");
break;
}
break;
@@ -80,7 +100,9 @@
static int parse_argv(const char *s)
{
- if (strcmp(s, "flush") == 0)
+ if (strcmp(s, "invalidate") == 0)
+ return 3;
+ else if (strcmp(s, "flush") == 0)
return 2;
else if (strcmp(s, "on") == 0)
return 1;
@@ -99,8 +121,8 @@
);
U_BOOT_CMD(
- dcache, 2, 1, do_dcache,
+ dcache, 4, 1, do_dcache,
"enable or disable data cache",
- "[on, off, flush]\n"
+ "[on, off, flush, invalidate] [start] [size]\n"
" - enable, disable, or flush data (writethrough) cache"
);
--
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