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Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
-rw-r--r--arch/mips/kernel/cpu-probe.c129
1 files changed, 119 insertions, 10 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 3e004161ebd5..c8c47a2d1972 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -159,6 +159,7 @@ static inline void check_wait(void)
159 case CPU_5KC: 159 case CPU_5KC:
160 case CPU_25KF: 160 case CPU_25KF:
161 case CPU_PR4450: 161 case CPU_PR4450:
162 case CPU_BCM3302:
162 cpu_wait = r4k_wait; 163 cpu_wait = r4k_wait;
163 break; 164 break;
164 165
@@ -745,14 +746,6 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
745{ 746{
746 decode_configs(c); 747 decode_configs(c);
747 748
748 /*
749 * For historical reasons the SB1 comes with it's own variant of
750 * cache code which eventually will be folded into c-r4k.c. Until
751 * then we pretend it's got it's own cache architecture.
752 */
753 c->options &= ~MIPS_CPU_4K_CACHE;
754 c->options |= MIPS_CPU_SB1_CACHE;
755
756 switch (c->processor_id & 0xff00) { 749 switch (c->processor_id & 0xff00) {
757 case PRID_IMP_SB1: 750 case PRID_IMP_SB1:
758 c->cputype = CPU_SB1; 751 c->cputype = CPU_SB1;
@@ -793,9 +786,111 @@ static inline void cpu_probe_philips(struct cpuinfo_mips *c)
793} 786}
794 787
795 788
789static inline void cpu_probe_broadcom(struct cpuinfo_mips *c)
790{
791 decode_configs(c);
792 switch (c->processor_id & 0xff00) {
793 case PRID_IMP_BCM3302:
794 c->cputype = CPU_BCM3302;
795 break;
796 case PRID_IMP_BCM4710:
797 c->cputype = CPU_BCM4710;
798 break;
799 default:
800 c->cputype = CPU_UNKNOWN;
801 break;
802 }
803}
804
805const char *__cpu_name[NR_CPUS];
806
807/*
808 * Name a CPU
809 */
810static __init const char *cpu_to_name(struct cpuinfo_mips *c)
811{
812 const char *name = NULL;
813
814 switch (c->cputype) {
815 case CPU_UNKNOWN: name = "unknown"; break;
816 case CPU_R2000: name = "R2000"; break;
817 case CPU_R3000: name = "R3000"; break;
818 case CPU_R3000A: name = "R3000A"; break;
819 case CPU_R3041: name = "R3041"; break;
820 case CPU_R3051: name = "R3051"; break;
821 case CPU_R3052: name = "R3052"; break;
822 case CPU_R3081: name = "R3081"; break;
823 case CPU_R3081E: name = "R3081E"; break;
824 case CPU_R4000PC: name = "R4000PC"; break;
825 case CPU_R4000SC: name = "R4000SC"; break;
826 case CPU_R4000MC: name = "R4000MC"; break;
827 case CPU_R4200: name = "R4200"; break;
828 case CPU_R4400PC: name = "R4400PC"; break;
829 case CPU_R4400SC: name = "R4400SC"; break;
830 case CPU_R4400MC: name = "R4400MC"; break;
831 case CPU_R4600: name = "R4600"; break;
832 case CPU_R6000: name = "R6000"; break;
833 case CPU_R6000A: name = "R6000A"; break;
834 case CPU_R8000: name = "R8000"; break;
835 case CPU_R10000: name = "R10000"; break;
836 case CPU_R12000: name = "R12000"; break;
837 case CPU_R14000: name = "R14000"; break;
838 case CPU_R4300: name = "R4300"; break;
839 case CPU_R4650: name = "R4650"; break;
840 case CPU_R4700: name = "R4700"; break;
841 case CPU_R5000: name = "R5000"; break;
842 case CPU_R5000A: name = "R5000A"; break;
843 case CPU_R4640: name = "R4640"; break;
844 case CPU_NEVADA: name = "Nevada"; break;
845 case CPU_RM7000: name = "RM7000"; break;
846 case CPU_RM9000: name = "RM9000"; break;
847 case CPU_R5432: name = "R5432"; break;
848 case CPU_4KC: name = "MIPS 4Kc"; break;
849 case CPU_5KC: name = "MIPS 5Kc"; break;
850 case CPU_R4310: name = "R4310"; break;
851 case CPU_SB1: name = "SiByte SB1"; break;
852 case CPU_SB1A: name = "SiByte SB1A"; break;
853 case CPU_TX3912: name = "TX3912"; break;
854 case CPU_TX3922: name = "TX3922"; break;
855 case CPU_TX3927: name = "TX3927"; break;
856 case CPU_AU1000: name = "Au1000"; break;
857 case CPU_AU1500: name = "Au1500"; break;
858 case CPU_AU1100: name = "Au1100"; break;
859 case CPU_AU1550: name = "Au1550"; break;
860 case CPU_AU1200: name = "Au1200"; break;
861 case CPU_4KEC: name = "MIPS 4KEc"; break;
862 case CPU_4KSC: name = "MIPS 4KSc"; break;
863 case CPU_VR41XX: name = "NEC Vr41xx"; break;
864 case CPU_R5500: name = "R5500"; break;
865 case CPU_TX49XX: name = "TX49xx"; break;
866 case CPU_20KC: name = "MIPS 20Kc"; break;
867 case CPU_24K: name = "MIPS 24K"; break;
868 case CPU_25KF: name = "MIPS 25Kf"; break;
869 case CPU_34K: name = "MIPS 34K"; break;
870 case CPU_74K: name = "MIPS 74K"; break;
871 case CPU_VR4111: name = "NEC VR4111"; break;
872 case CPU_VR4121: name = "NEC VR4121"; break;
873 case CPU_VR4122: name = "NEC VR4122"; break;
874 case CPU_VR4131: name = "NEC VR4131"; break;
875 case CPU_VR4133: name = "NEC VR4133"; break;
876 case CPU_VR4181: name = "NEC VR4181"; break;
877 case CPU_VR4181A: name = "NEC VR4181A"; break;
878 case CPU_SR71000: name = "Sandcraft SR71000"; break;
879 case CPU_BCM3302: name = "Broadcom BCM3302"; break;
880 case CPU_BCM4710: name = "Broadcom BCM4710"; break;
881 case CPU_PR4450: name = "Philips PR4450"; break;
882 case CPU_LOONGSON2: name = "ICT Loongson-2"; break;
883 default:
884 BUG();
885 }
886
887 return name;
888}
889
796__init void cpu_probe(void) 890__init void cpu_probe(void)
797{ 891{
798 struct cpuinfo_mips *c = &current_cpu_data; 892 struct cpuinfo_mips *c = &current_cpu_data;
893 unsigned int cpu = smp_processor_id();
799 894
800 c->processor_id = PRID_IMP_UNKNOWN; 895 c->processor_id = PRID_IMP_UNKNOWN;
801 c->fpu_id = FPIR_IMP_NONE; 896 c->fpu_id = FPIR_IMP_NONE;
@@ -815,6 +910,9 @@ __init void cpu_probe(void)
815 case PRID_COMP_SIBYTE: 910 case PRID_COMP_SIBYTE:
816 cpu_probe_sibyte(c); 911 cpu_probe_sibyte(c);
817 break; 912 break;
913 case PRID_COMP_BROADCOM:
914 cpu_probe_broadcom(c);
915 break;
818 case PRID_COMP_SANDCRAFT: 916 case PRID_COMP_SANDCRAFT:
819 cpu_probe_sandcraft(c); 917 cpu_probe_sandcraft(c);
820 break; 918 break;
@@ -824,6 +922,14 @@ __init void cpu_probe(void)
824 default: 922 default:
825 c->cputype = CPU_UNKNOWN; 923 c->cputype = CPU_UNKNOWN;
826 } 924 }
925
926 /*
927 * Platform code can force the cpu type to optimize code
928 * generation. In that case be sure the cpu type is correctly
929 * manually setup otherwise it could trigger some nasty bugs.
930 */
931 BUG_ON(current_cpu_type() != c->cputype);
932
827 if (c->options & MIPS_CPU_FPU) { 933 if (c->options & MIPS_CPU_FPU) {
828 c->fpu_id = cpu_get_fpu_id(); 934 c->fpu_id = cpu_get_fpu_id();
829 935
@@ -835,13 +941,16 @@ __init void cpu_probe(void)
835 c->ases |= MIPS_ASE_MIPS3D; 941 c->ases |= MIPS_ASE_MIPS3D;
836 } 942 }
837 } 943 }
944
945 __cpu_name[cpu] = cpu_to_name(c);
838} 946}
839 947
840__init void cpu_report(void) 948__init void cpu_report(void)
841{ 949{
842 struct cpuinfo_mips *c = &current_cpu_data; 950 struct cpuinfo_mips *c = &current_cpu_data;
843 951
844 printk("CPU revision is: %08x\n", c->processor_id); 952 printk(KERN_INFO "CPU revision is: %08x (%s)\n",
953 c->processor_id, cpu_name_string());
845 if (c->options & MIPS_CPU_FPU) 954 if (c->options & MIPS_CPU_FPU)
846 printk("FPU revision is: %08x\n", c->fpu_id); 955 printk(KERN_INFO "FPU revision is: %08x\n", c->fpu_id);
847} 956}
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-10 20:43:49 -0400