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MIPS: Loongson64: env: Hook up Loongsson-2K

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commit 77543269ff upstream.

Somehow those enablement bits were left over when we were
adding initial Loongson-2K support.

Set up basic information and select proper builtin DTB for
Loongson-2K.

Cc: stable@vger.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiaxun Yang 2024-06-14 16:40:18 +01:00 committed by Greg Kroah-Hartman
parent 27479037e8
commit f7097b5fda
2 changed files with 10 additions and 0 deletions
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2
arch/mips/include/asm/mach-loongson64/boot_param.h
View File

@ -42,12 +42,14 @@ enum loongson_cpu_type {
Legacy_1B = 0x5, Legacy_1B = 0x5,
Legacy_2G = 0x6, Legacy_2G = 0x6,
Legacy_2H = 0x7, Legacy_2H = 0x7,
Legacy_2K = 0x8,
Loongson_1A = 0x100, Loongson_1A = 0x100,
Loongson_1B = 0x101, Loongson_1B = 0x101,
Loongson_2E = 0x200, Loongson_2E = 0x200,
Loongson_2F = 0x201, Loongson_2F = 0x201,
Loongson_2G = 0x202, Loongson_2G = 0x202,
Loongson_2H = 0x203, Loongson_2H = 0x203,
Loongson_2K = 0x204,
Loongson_3A = 0x300, Loongson_3A = 0x300,
Loongson_3B = 0x301 Loongson_3B = 0x301
}; };

8
arch/mips/loongson64/env.c
View File

@ -88,6 +88,12 @@ void __init prom_lefi_init_env(void)
cpu_clock_freq = ecpu->cpu_clock_freq; cpu_clock_freq = ecpu->cpu_clock_freq;
loongson_sysconf.cputype = ecpu->cputype; loongson_sysconf.cputype = ecpu->cputype;
switch (ecpu->cputype) { switch (ecpu->cputype) {
case Legacy_2K:
case Loongson_2K:
smp_group[0] = 0x900000001fe11000;
loongson_sysconf.cores_per_node = 2;
loongson_sysconf.cores_per_package = 2;
break;
case Legacy_3A: case Legacy_3A:
case Loongson_3A: case Loongson_3A:
loongson_sysconf.cores_per_node = 4; loongson_sysconf.cores_per_node = 4;
@ -221,6 +227,8 @@ void __init prom_lefi_init_env(void)
default: default:
break; break;
} }
} else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) {
loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin;
} else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64G) { } else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64G) {
if (loongson_sysconf.bridgetype == LS7A) if (loongson_sysconf.bridgetype == LS7A)
loongson_fdt_blob = __dtb_loongson64g_4core_ls7a_begin; loongson_fdt_blob = __dtb_loongson64g_4core_ls7a_begin;