nds32: split common cache access from cpu into lib

This commit does the following updates.
1. Split the common cache access from cpu.c into lib folder.
2. Rename the following cache api to adapt common.h
 - dcache_flush_rang -> flush_dcache_rang
 - icache_inval_range -> invalidate_icache_range
3. Add invalidate_dcache_range

Signed-off-by: Macpaul Lin <macpaul@gmail.com>

1 files changed, 0 insertions, 112 deletions

diff --git a/arch/nds32/cpu/n1213/ag102/cpu.c b/arch/nds32/cpu/n1213/ag102/cpu.c
index ed88b52..252b69d 100644
--- a/arch/nds32/cpu/n1213/ag102/cpu.c
+++ b/arch/nds32/cpu/n1213/ag102/cpu.c
@@ -81,115 +81,3 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 	/*NOTREACHED*/
 }
-
-static inline unsigned long CACHE_LINE_SIZE(enum cache_t cache)
-{
-	if (cache == ICACHE)
-		return 8 << (((GET_ICM_CFG() & ICM_CFG_MSK_ISZ) \
-					>> ICM_CFG_OFF_ISZ) - 1);
-	else
-		return 8 << (((GET_DCM_CFG() & DCM_CFG_MSK_DSZ) \
-					>> DCM_CFG_OFF_DSZ) - 1);
-}
-
-void dcache_flush_range(unsigned long start, unsigned long end)
-{
-	unsigned long line_size;
-
-	line_size = CACHE_LINE_SIZE(DCACHE);
-
-	while (end > start) {
-		__asm__ volatile ("\n\tcctl %0, L1D_VA_WB" : : "r"(start));
-		__asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL" : : "r"(start));
-		start += line_size;
-	}
-}
-
-void icache_inval_range(unsigned long start, unsigned long end)
-{
-	unsigned long line_size;
-
-	line_size = CACHE_LINE_SIZE(ICACHE);
-	while (end > start) {
-		__asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL" : : "r"(start));
-		start += line_size;
-	}
-}
-
-void flush_cache(unsigned long addr, unsigned long size)
-{
-	dcache_flush_range(addr, addr + size);
-	icache_inval_range(addr, addr + size);
-}
-
-void icache_enable(void)
-{
-	__asm__ __volatile__ (
-		"mfsr	$p0, $mr8\n\t"
-		"ori	$p0, $p0, 0x01\n\t"
-		"mtsr	$p0, $mr8\n\t"
-		"isb\n\t"
-	);
-}
-
-void icache_disable(void)
-{
-	__asm__ __volatile__ (
-		"mfsr	$p0, $mr8\n\t"
-		"li	$p1, ~0x01\n\t"
-		"and	$p0, $p0, $p1\n\t"
-		"mtsr	$p0, $mr8\n\t"
-		"isb\n\t"
-	);
-}
-
-int icache_status(void)
-{
-	int ret;
-
-	 __asm__ __volatile__ (
-		"mfsr	$p0, $mr8\n\t"
-		"andi	%0,  $p0, 0x01\n\t"
-		: "=r" (ret)
-		:
-		: "memory"
-	);
-
-	 return ret;
-}
-
-void dcache_enable(void)
-{
-	 __asm__ __volatile__ (
-		"mfsr	$p0, $mr8\n\t"
-		"ori	$p0, $p0, 0x02\n\t"
-		"mtsr	$p0, $mr8\n\t"
-		"isb\n\t"
-	);
-}
-
-void dcache_disable(void)
-{
-	 __asm__ __volatile__ (
-		"mfsr	$p0, $mr8\n\t"
-		"li	$p1, ~0x02\n\t"
-		"and	$p0, $p0, $p1\n\t"
-		"mtsr	$p0, $mr8\n\t"
-		"isb\n\t"
-	);
-}
-
-int dcache_status(void)
-{
-	int ret;
-
-	__asm__ __volatile__ (
-		"mfsr	$p0, $mr8\n\t"
-		"andi	%0, $p0, 0x02\n\t"
-		: "=r" (ret)
-		:
-		: "memory"
-	 );
-
-	 return ret;
-}