MIPS: Malta: Probe CPC when supported

When CPC support is compiled into the kernel (ie. CONFIG_MIPS_CPC=y),
probe the CPC on boot for Malta in order to allow any users of the CPC
to detect its presence & function correctly.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6363/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/mips-boards/malta.h

@@ -63,6 +63,11 @@ static inline unsigned long get_msc_port_base(unsigned long reg)
 #define GIC_BASE_ADDR			0x1bdc0000
 #define GIC_ADDRSPACE_SZ		(128 * 1024)
 
+/*
+ * CPC Specific definitions
+ */
+#define CPC_BASE_ADDR			0x1bde0000
+
 /*
  * MSC01 BIU Specific definitions
  * FIXME : These should be elsewhere ?

arch/mips/mti-malta/malta-init.c

@@ -21,6 +21,7 @@
 #include <asm/traps.h>
 #include <asm/fw/fw.h>
 #include <asm/mips-cm.h>
+#include <asm/mips-cpc.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/malta.h>
 
@@ -110,6 +111,11 @@ static void __init mips_ejtag_setup(void)
 	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
 }
 
+phys_t mips_cpc_default_phys_base(void)
+{
+	return CPC_BASE_ADDR;
+}
+
 extern struct plat_smp_ops msmtc_smp_ops;
 
 void __init prom_init(void)
@@ -277,6 +283,7 @@ mips_pci_controller:
 #endif
 	/* Early detection of CMP support */
 	mips_cm_probe();
+	mips_cpc_probe();
 
 	if (!register_cmp_smp_ops())
 		return;