Distinguish between 3A series CPU and 2K1000 CPU UART0.
Signed-off-by: Jiaxun Yang <jiaxun.y...@flygoat.com>
Signed-off-by: Qing Zhang <zhangq...@loongson.cn>
---
v2-v3: No change
arch/mips/loongson64/init.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
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;
--
2.20.1
