From: Simon Glass <sjg@chromium.org>
Date: Mon, 20 Jun 2016 01:43:02 +0000 (-0600)
Subject: arm: Don't invalidate unaligned cache regions
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=6b424611a8dee0444459c0c205a9d72f65f61456;p=u-boot.git

arm: Don't invalidate unaligned cache regions

At present armv7 will unhappily invalidate a cache region and print an
error message. Make it skip the operation instead, as it does with other
cache operations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
---

diff --git a/arch/arm/cpu/armv7/cache_v7.c b/arch/arm/cpu/armv7/cache_v7.c
index 2b6312099d..52f18565db 100644
--- a/arch/arm/cpu/armv7/cache_v7.c
+++ b/arch/arm/cpu/armv7/cache_v7.c
@@ -44,27 +44,8 @@ static void v7_dcache_inval_range(u32 start, u32 stop, u32 line_len)
 {
 	u32 mva;
 
-	/*
-	 * If start address is not aligned to cache-line do not
-	 * invalidate the first cache-line
-	 */
-	if (start & (line_len - 1)) {
-		printf("ERROR: %s - start address is not aligned - 0x%08x\n",
-			__func__, start);
-		/* move to next cache line */
-		start = (start + line_len - 1) & ~(line_len - 1);
-	}
-
-	/*
-	 * If stop address is not aligned to cache-line do not
-	 * invalidate the last cache-line
-	 */
-	if (stop & (line_len - 1)) {
-		printf("ERROR: %s - stop address is not aligned - 0x%08x\n",
-			__func__, stop);
-		/* align to the beginning of this cache line */
-		stop &= ~(line_len - 1);
-	}
+	if (!check_cache_range(start, stop))
+		return;
 
 	for (mva = start; mva < stop; mva = mva + line_len) {
 		/* DCIMVAC - Invalidate data cache by MVA to PoC */