diff options
| author | Qing Zhang <zhangqing@loongson.cn> | 2021-03-15 15:50:01 +0800 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-03-25 10:44:01 +0100 |
| commit | 44151ea08978cea536fa9e7b95efca336994048d (patch) | |
| tree | cce29d8ab2f7b1bab948cae66e1dcc115ab5f7fe /arch/mips/loongson64/init.c | |
| parent | 95b56e884a50c8e935b4e9f8b289251cc913795e (diff) | |
MIPS: Loongson64: Add Loongson-2K1000 early_printk_port
Distinguish between Loongson-3A series CPU and Loongson-2K1000 CPU UART0.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Tested-by: Ming Wang <wangming01@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/loongson64/init.c')
| -rw-r--r-- | arch/mips/loongson64/init.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index ed280b73bf89..d5a1eddb8202 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -120,7 +120,10 @@ void __init prom_init(void) #endif /* Hardcode to CPU UART 0 */ - setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE), 0, 1024); + else + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); register_smp_ops(&loongson3_smp_ops); board_nmi_handler_setup = mips_nmi_setup; |