[MIPS] Add bcm1480 ZBus trace support, fix wait related bugs

Make ZBus tracing generic - moving it to a common direcotry under
arch/mips/sibyte, add bcm1480 support and fix some wait related
bugs (thanks to Ralf for assistance on that).
Signed-off-by: Mark Mason <mason@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Makefile

@@ -530,25 +530,29 @@ cflags-$(CONFIG_SGI_IP32)	+= -Iinclude/asm-mips/mach-ip32
 load-$(CONFIG_SGI_IP32)		+= 0xffffffff80004000
 
 #
-# Sibyte SB1250 SOC
+# Sibyte SB1250/BCM1480 SOC
 #
 # This is a LIB so that it links at the end, and initcalls are later
 # the sequence; but it is built as an object so that modules don't get
 # removed (as happens, even if they have __initcall/module_init)
 #
 core-$(CONFIG_SIBYTE_BCM112X)	+= arch/mips/sibyte/sb1250/
+core-$(CONFIG_SIBYTE_BCM112X)	+= arch/mips/sibyte/common/
 cflags-$(CONFIG_SIBYTE_BCM112X)	+= -Iinclude/asm-mips/mach-sibyte \
 			-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1250_112x_ALL
 
 core-$(CONFIG_SIBYTE_SB1250)	+= arch/mips/sibyte/sb1250/
+core-$(CONFIG_SIBYTE_SB1250)	+= arch/mips/sibyte/common/
 cflags-$(CONFIG_SIBYTE_SB1250)	+= -Iinclude/asm-mips/mach-sibyte \
 			-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1250_112x_ALL
 
 core-$(CONFIG_SIBYTE_BCM1x55)	+= arch/mips/sibyte/bcm1480/
+core-$(CONFIG_SIBYTE_BCM1x55)	+= arch/mips/sibyte/common/
 cflags-$(CONFIG_SIBYTE_BCM1x55)	+= -Iinclude/asm-mips/mach-sibyte \
 			-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1480_ALL
 
 core-$(CONFIG_SIBYTE_BCM1x80)	+= arch/mips/sibyte/bcm1480/
+core-$(CONFIG_SIBYTE_BCM1x80)	+= arch/mips/sibyte/common/
 cflags-$(CONFIG_SIBYTE_BCM1x80)	+= -Iinclude/asm-mips/mach-sibyte \
 			-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1480_ALL
 

arch/mips/sibyte/Kconfig

@@ -2,6 +2,7 @@ config SIBYTE_SB1250
 	bool
 	select HW_HAS_PCI
 	select SIBYTE_ENABLE_LDT_IF_PCI
+	select SIBYTE_HAS_ZBUS_PROFILING
 	select SIBYTE_SB1xxx_SOC
 	select SYS_SUPPORTS_SMP
 
@@ -34,6 +35,7 @@ config SIBYTE_BCM112X
 config SIBYTE_BCM1x80
 	bool
 	select HW_HAS_PCI
+	select SIBYTE_HAS_ZBUS_PROFILING
 	select SIBYTE_SB1xxx_SOC
 	select SYS_SUPPORTS_SMP
 

arch/mips/sibyte/common/Makefile

+obj-y :=
+
+obj-$(CONFIG_SIBYTE_TBPROF)		+= sb_tbprof.o
+
+EXTRA_AFLAGS := $(CFLAGS)

arch/mips/sibyte/sb1250/Makefile

 obj-y := setup.o irq.o time.o
 
 obj-$(CONFIG_SMP)			+= smp.o
-obj-$(CONFIG_SIBYTE_TBPROF)		+= bcm1250_tbprof.o
 obj-$(CONFIG_SIBYTE_STANDALONE)		+= prom.o
 obj-$(CONFIG_SIBYTE_BUS_WATCHER)	+= bus_watcher.o