MIPS: BMIPS: Fill in current_cpu_data.core

Read the core ID in bmips_smp_finish() for BMIPS5000 CPUs to get appropriate
processor parenting in set_cpu_sibling_map().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: john@phrozen.org
Cc: cernekee@gmail.com
Cc: jon.fraser@broadcom.com
Cc: jaedon.shin@gmail.com
Cc: dragan.stancevic@gmail.com
Cc: jogo@openwrt.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12380/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/smp-bmips.c

@@ -243,6 +243,7 @@ static void bmips_init_secondary(void)
 		break;
 	case CPU_BMIPS5000:
 		write_c0_brcm_action(ACTION_CLR_IPI(smp_processor_id(), 0));
+		current_cpu_data.core = (read_c0_brcm_config() >> 25) & 3;
 		break;
 	}
 }