Remove Sibyte specific code from locore.S that sets the k0seg coherency.

Move it to platform_start() instead.

Approved by: imp (mentor)

1 files changed, 17 insertions, 0 deletions

diff --git a/sys/mips/sibyte/sb_machdep.c b/sys/mips/sibyte/sb_machdep.c
index 8bb265c..4e4d81a 100644
--- a/sys/mips/sibyte/sb_machdep.c
+++ b/sys/mips/sibyte/sb_machdep.c
@@ -230,12 +230,29 @@ platform_trap_exit(void)
 
 }
 
+static void
+kseg0_map_coherent(void)
+{
+	uint32_t config;
+	const int CFG_K0_COHERENT = 5;
+
+	config = mips_rd_config();
+	config &= ~CFG_K0_MASK;
+	config |= CFG_K0_COHERENT;
+	mips_wr_config(config);
+}
+
 void
 platform_start(__register_t a0, __register_t a1, __register_t a2,
 	       __register_t a3)
 {
 	vm_offset_t kernend;
 
+	/*
+	 * Make sure that kseg0 is mapped cacheable-coherent
+	 */
+	kseg0_map_coherent();
+
 	/* clear the BSS and SBSS segments */
 	memset(&edata, 0, (vm_offset_t)&end - (vm_offset_t)&edata);
 	kernend = round_page((vm_offset_t)&end);