[U-Boot-Users] [PATCH][RFC] dcache manipulation for arm926ejs

[Hiroki Kaminaga]

This patch implements dcache manipulation for arm926ejs.

Signed-off-by: Hiroki Kaminaga <kaminaga at sm.sony.co.jp>

 cpu/arm926ejs/cpu.c |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+)

Index: u-boot-1.1.4/cpu/arm926ejs/cpu.c
===================================================================
--- u-boot-1.1.4.orig/cpu/arm926ejs/cpu.c	2005-12-17 01:39:27.000000000 +0900
+++ u-boot-1.1.4/cpu/arm926ejs/cpu.c	2006-02-10 18:28:27.000000000 +0900
@@ -154,3 +154,26 @@ int icache_status (void)
 {
 	return (read_p15_c1 () & C1_IC) != 0;
 }
+
+void dcache_enable (void)
+{
+	ulong reg;
+
+	reg = read_p15_c1 ();		/* get control reg. */
+	cp_delay ();
+	write_p15_c1 (reg | C1_DC);
+}
+
+void dcache_disable (void)
+{
+	ulong reg;
+
+	reg = read_p15_c1 ();
+	cp_delay ();
+	write_p15_c1 (reg & ~C1_DC);
+}
+
+int dcache_status (void)
+{
+	return (read_p15_c1 () & C1_DC) != 0;
+}