MIPS: Netlogic: nlm_core_id for xlp9xx

XLP9XX has 5 bits that specify the core in the EBASE register. XLP5XX
case added as well for completeness.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8890/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/netlogic/mips-extns.h

@@ -157,6 +157,12 @@ static inline int nlm_nodeid(void)
 
 static inline unsigned int nlm_core_id(void)
 {
+	uint32_t prid = read_c0_prid() & PRID_IMP_MASK;
+
+	if ((prid == PRID_IMP_NETLOGIC_XLP9XX) ||
+			(prid == PRID_IMP_NETLOGIC_XLP5XX))
+		return (read_c0_ebase() & 0x7c) >> 2;
+	else
 		return (read_c0_ebase() & 0x1c) >> 2;
 }