From: 黄涛 <huangtao@rock-chips.com>
Date: Mon, 30 Aug 2010 03:38:56 +0000 (+0800)
Subject: tcm: use dtcm instead of sram. dtcm is ok now.
X-Git-Tag: firefly_0821_release~11220
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2788c4aa46bedf0907dd7c4d7b15ec4b336e977d;p=firefly-linux-kernel-4.4.55.git

tcm: use dtcm instead of sram. dtcm is ok now.
---

diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c
index 2d76fff2638e..e50303868f1b 100644
--- a/arch/arm/kernel/tcm.c
+++ b/arch/arm/kernel/tcm.c
@@ -17,9 +17,6 @@
 #include <asm/cputype.h>
 #include <asm/mach/map.h>
 #include <mach/memory.h>
-#ifdef CONFIG_ARCH_RK2818
-#include <mach/rk2818_iomap.h>
-#endif
 #include "tcm.h"
 
 /* Scream and warn about misuse */
@@ -54,11 +51,7 @@ static struct resource itcm_res = {
 static struct map_desc dtcm_iomap[] __initdata = {
 	{
 		.virtual	= DTCM_OFFSET,
-#ifdef CONFIG_ARCH_RK2818
-		.pfn		= __phys_to_pfn(RK2818_SRAM_PHYS),
-#else
 		.pfn		= __phys_to_pfn(DTCM_OFFSET),
-#endif
 		.length		= (DTCM_END - DTCM_OFFSET + 1),
 		.type		= MT_UNCACHED
 	}
diff --git a/arch/arm/mach-rk2818/include/mach/memory.h b/arch/arm/mach-rk2818/include/mach/memory.h
index 878d4a7c2b50..2749a563886e 100644
--- a/arch/arm/mach-rk2818/include/mach/memory.h
+++ b/arch/arm/mach-rk2818/include/mach/memory.h
@@ -29,8 +29,7 @@
 #define ITCM_OFFSET	0xff400000
 #define ITCM_END	0xff401fff
 #define DTCM_OFFSET	0xff404000
-#define DTCM_END	0xff404fff	// use sram for dtcm,sram length = 4K.
-/* #define DTCM_END	0xff407fff */
+#define DTCM_END	0xff407fff
 
 #endif