mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-25 19:16:16 +02:00
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
--- linux-mips-cvs/arch/mips/mm/c-r4k.c 2004-11-03 17:43:07.000000000 +0100
|
|
+++ linux-cache/arch/mips/mm/c-r4k.c 2005-03-06 23:39:53.000000000 +0100
|
|
@@ -1031,9 +1031,34 @@
|
|
c->options |= MIPS_CPU_SUBSET_CACHES;
|
|
}
|
|
|
|
+#if defined(CONFIG_BCM4310)
|
|
+static void __init _change_cachability(u32 cm)
|
|
+{
|
|
+ struct cpuinfo_mips *c = ¤t_cpu_data;
|
|
+
|
|
+ change_c0_config(CONF_CM_CMASK, cm);
|
|
+ if ((c->processor_id & (PRID_COMP_MASK | PRID_IMP_MASK)) ==
|
|
+ (PRID_COMP_BROADCOM | PRID_IMP_BCM3302)) {
|
|
+ cm = read_c0_diag();
|
|
+ /* Enable icache */
|
|
+ cm |= (1 << 31);
|
|
+ /* Enable dcache */
|
|
+ cm |= (1 << 30);
|
|
+ write_c0_diag(cm);
|
|
+ }
|
|
+}
|
|
+
|
|
+static void (*change_cachability)(u32);
|
|
+#endif
|
|
+
|
|
static inline void coherency_setup(void)
|
|
{
|
|
+#if defined(CONFIG_BCM4310)
|
|
+ change_cachability = (void (*)(u32)) KSEG1ADDR((unsigned long)(_change_cachability));
|
|
+ change_cachability(CONF_CM_DEFAULT);
|
|
+#else
|
|
change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT);
|
|
+#endif
|
|
|
|
/*
|
|
* c0_status.cu=0 specifies that updates by the sc instruction use
|