nios2: convert cache flush to use dm cpu data

Convert cache flush to use dm cpu data.

The original cache flush functions are written in assembly
and use CONFIG_SYS_{I,D}CACHE_SIZE... macros. It is difficult
to convert to use cache configuration in dm cpu data which is
extracted from device tree.

The cacheflush.c of Linux nios2 arch uses cpuinfo structure,
which is very close to our dm cpu data. So we copy and modify
it to arch/nios2/lib/cache.c to replace the old cache.S.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>

1 files changed, 0 insertions, 15 deletions

diff --git a/arch/nios2/cpu/cpu.c b/arch/nios2/cpu/cpu.c
index 0e71b43..e4217c8 100644
--- a/arch/nios2/cpu/cpu.c
+++ b/arch/nios2/cpu/cpu.c
@@ -29,21 +29,6 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 0;
 }
 
-int dcache_status(void)
-{
-	return 1;
-}
-
-void dcache_enable(void)
-{
-	flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
-}
-
-void dcache_disable(void)
-{
-	flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
-}
-
 int arch_cpu_init_dm(void)
 {
 	struct udevice *dev;