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Revert "MIPS: Remove unused R4300 CPU support"

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This reverts commit f9065b54d4.

We're adding Nintendo 64 support, so the VR4300 is no longer unused.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Lauri Kasanen 2021-01-13 17:10:07 +02:00 committed by Thomas Bogendoerfer
parent a2fa4cede9
commit 65ce6197ed
9 changed files with 33 additions and 1 deletions
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12
arch/mips/Kconfig
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@ -1660,6 +1660,15 @@ config CPU_VR41XX
kernel built with this option will not run on any other type of
processor or vice versa.
config CPU_R4300
bool "R4300"
depends on SYS_HAS_CPU_R4300
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_SUPPORTS_64BIT_KERNEL
select CPU_HAS_LOAD_STORE_LR
help
MIPS Technologies R4300-series processors.
config CPU_R4X00
bool "R4x00"
depends on SYS_HAS_CPU_R4X00
@ -1994,6 +2003,9 @@ config SYS_HAS_CPU_TX39XX
config SYS_HAS_CPU_VR41XX
bool
config SYS_HAS_CPU_R4300
bool
config SYS_HAS_CPU_R4X00
bool

1
arch/mips/Makefile
View File

@ -160,6 +160,7 @@ cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
#
cflags-$(CONFIG_CPU_R3000) += -march=r3000
cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap

5
arch/mips/include/asm/cpu-type.h
View File

@ -122,6 +122,11 @@ static inline int __pure __get_cpu_type(const int cpu_type)
case CPU_VR4181A:
#endif
#ifdef CONFIG_SYS_HAS_CPU_R4300
case CPU_R4300:
case CPU_R4310:
#endif
#ifdef CONFIG_SYS_HAS_CPU_R4X00
case CPU_R4000PC:
case CPU_R4000SC:

2
arch/mips/include/asm/cpu.h
View File

@ -302,7 +302,7 @@ enum cpu_type_enum {
/*
* R4000 class processors
*/
CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200,
CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R10000,
CPU_R12000, CPU_R14000, CPU_R16000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,

2
arch/mips/include/asm/vermagic.h
View File

@ -26,6 +26,8 @@
#define MODULE_PROC_FAMILY "TX39XX "
#elif defined CONFIG_CPU_VR41XX
#define MODULE_PROC_FAMILY "VR41XX "
#elif defined CONFIG_CPU_R4300
#define MODULE_PROC_FAMILY "R4300 "
#elif defined CONFIG_CPU_R4X00
#define MODULE_PROC_FAMILY "R4X00 "
#elif defined CONFIG_CPU_TX49XX

9
arch/mips/kernel/cpu-probe.c
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@ -1154,6 +1154,15 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
break;
}
break;
case PRID_IMP_R4300:
c->cputype = CPU_R4300;
__cpu_name[cpu] = "R4300";
set_isa(c, MIPS_CPU_ISA_III);
c->fpu_msk31 |= FPU_CSR_CONDX;
c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_LLSC;
c->tlbsize = 32;
break;
case PRID_IMP_R4600:
c->cputype = CPU_R4600;
__cpu_name[cpu] = "R4600";

1
arch/mips/kernel/idle.c
View File

@ -151,6 +151,7 @@ void __init check_wait(void)
cpu_wait = r39xx_wait;
break;
case CPU_R4200:
/* case CPU_R4300: */
case CPU_R4600:
case CPU_R4640:
case CPU_R4650:

1
arch/mips/mm/c-r4k.c
View File

@ -1164,6 +1164,7 @@ static void probe_pcache(void)
case CPU_R4400PC:
case CPU_R4400SC:
case CPU_R4400MC:
case CPU_R4300:
icache_size = 1 << (12 + ((config & CONF_IC) >> 9));
c->icache.linesz = 16 << ((config & CONF_IB) >> 5);
c->icache.ways = 1;

1
arch/mips/mm/tlbex.c
View File

@ -549,6 +549,7 @@ void build_tlb_write_entry(u32 **p, struct uasm_label **l,
tlbw(p);
break;
case CPU_R4300:
case CPU_5KC:
case CPU_TX49XX:
case CPU_PR4450: