From: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Date: Fri, 4 Nov 2011 12:38:08 +0000 (+0200)
Subject: nios2: add flush_dcache_range function
X-Git-Tag: v2012.04-rc2~10^2~2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=8875833a86e567c0ca4258353116294089d24625;p=u-boot

nios2: add flush_dcache_range function

exposes functionality to flush dcache according to
the common.h API

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
---

diff --git a/arch/nios2/lib/cache.S b/arch/nios2/lib/cache.S
index ee3b4b79bf..b952d0c901 100644
--- a/arch/nios2/lib/cache.S
+++ b/arch/nios2/lib/cache.S
@@ -48,6 +48,16 @@ flush_icache:
 	bltu	r4, r5, 1b
 	ret
 
+	.global flush_dcache_range
+
+flush_dcache_range:
+	movhi	r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
+	ori	r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
+0:	flushd	0(r4)
+	add	r4, r4, r8
+	bltu	r4, r5, 0b
+	ret
+
 	.global flush_cache
 
 flush_cache: