X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fsvn-archive%2Farchive.git;a=blobdiff_plain;f=package%2Fuboot-ifxmips%2Ffiles%2Fcpu%2Fmips%2Fdanube%2Fifx_cache.S;fp=package%2Fuboot-ifxmips%2Ffiles%2Fcpu%2Fmips%2Fdanube%2Fifx_cache.S;h=fc482dcd61bd23519a19d52209ccaf76c952a3c4;hp=0000000000000000000000000000000000000000;hb=2291f4f90d42ee6d5a63609742293ea1a92f656b;hpb=981da6f3b9286ece98e78d265bc813ae44acdd96

diff --git a/package/uboot-ifxmips/files/cpu/mips/danube/ifx_cache.S b/package/uboot-ifxmips/files/cpu/mips/danube/ifx_cache.S
new file mode 100644
index 0000000000..fc482dcd61
--- /dev/null
+++ b/package/uboot-ifxmips/files/cpu/mips/danube/ifx_cache.S
@@ -0,0 +1,60 @@
+
+#define IFX_CACHE_EXTRA_INVALID_TAG						\
+	mtc0	zero, CP0_TAGLO, 1;						\
+	mtc0	zero, CP0_TAGLO, 2;						\
+	mtc0	zero, CP0_TAGLO, 3;						\
+	mtc0	zero, CP0_TAGLO, 4;
+
+#define IFX_CACHE_EXTRA_OPERATION						\
+	/* set WST bit */							\
+	mfc0	a0, CP0_ECC;							\
+	li	a1, ECCF_WST;							\
+	or	a0, a1;								\
+	mtc0	a0, CP0_ECC;							\
+										\
+	li	a0, K0BASE;							\
+	move	a2, t2;		/* icacheSize */				\
+	move	a3, t4;		/* icacheLineSize */				\
+	move	a1, a2;								\
+	icacheop(a0,a1,a2,a3,(Index_Store_Tag_I));				\
+										\
+	/* clear WST bit */							\
+	mfc0	a0, CP0_ECC;							\
+	li	a1, ~ECCF_WST;							\
+	and	a0, a1;								\
+	mtc0	a0, CP0_ECC;							\
+										\
+	/* 1: initialise dcache tags. */					\
+										\
+	/* cache line size */							\
+	li	a2, CFG_CACHELINE_SIZE;						\
+	/* kseg0 mem address */							\
+	li	a1, 0;								\
+	li	a3, CFG_CACHE_SETS * CFG_CACHE_WAYS;				\
+1:										\
+	/* store tag (invalid, not locked) */					\
+	cache 0x8, 0(a1);							\
+	cache 0x9, 0(a1);							\
+										\
+	add	a3, -1;								\
+	bne	a3, zero, 1b;							\
+	add	a1, a2;								\
+										\
+	/* set WST bit */							\
+	mfc0	a0, CP0_ECC;							\
+	li	a1, ECCF_WST;							\
+	or	a0, a1;								\
+	mtc0	a0, CP0_ECC;							\
+										\
+	li	a0, K0BASE;							\
+	move	a2, t3;		/* dcacheSize */				\
+	move	a3, t5;		/* dcacheLineSize */				\
+	move	a1, a2;								\
+	icacheop(a0,a1,a2,a3,(Index_Store_Tag_D));				\
+										\
+	/* clear WST bit */							\
+	mfc0	a0, CP0_ECC;							\
+	li	a1, ~ECCF_WST;							\
+	and	a0, a1;								\
+	mtc0	a0, CP0_ECC;
+