From 859aeb1b0dd1b9c6ff3d78f6cb913a73af9da247 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Fri, 2 Jun 2017 12:39:04 -0700 Subject: MIPS: Probe the I6500 CPU Introduce the I6500 PRID & probe it just the same way as I6400. The MIPS I6500 is the latest in Imagination Technologies' I-Class range of CPUs, with a focus on scalability & heterogeneity. It introduces the notion of multiple clusters to the MIPS Coherent Processing System, allowing for a far higher total number of cores & threads in a system when compared with its predecessors. Clusters don't need to be identical, and may contain differing numbers of cores & IOCUs, or cores with differing properties. This patch alone adds the basic support for booting Linux on an I6500 CPU without support for any of its new functionality, for which support will be introduced in further patches. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16190/ Signed-off-by: Ralf Baechle --- arch/mips/kernel/cpu-probe.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/mips/kernel/cpu-probe.c') diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 1aba27786bd5..353ade2c130a 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -564,6 +564,7 @@ static int set_ftlb_enable(struct cpuinfo_mips *c, enum ftlb_flags flags) back_to_back_c0_hazard(); break; case CPU_I6400: + case CPU_I6500: /* There's no way to disable the FTLB */ if (!(flags & FTLB_EN)) return 1; @@ -1635,6 +1636,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_I6400; __cpu_name[cpu] = "MIPS I6400"; break; + case PRID_IMP_I6500: + c->cputype = CPU_I6500; + __cpu_name[cpu] = "MIPS I6500"; + break; case PRID_IMP_M5150: c->cputype = CPU_M5150; __cpu_name[cpu] = "MIPS M5150"; -- cgit v1.2.1