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MIPS: Loongson64: Add Loongson-2K1000 early_printk_port

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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>
This commit is contained in:
Qing Zhang 2021-03-15 15:50:01 +08:00 committed by Thomas Bogendoerfer
parent 95b56e884a
commit 44151ea089
1 changed files with 4 additions and 1 deletions
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5
arch/mips/loongson64/init.c
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@ -120,7 +120,10 @@ void __init prom_init(void)
#endif #endif
/* Hardcode to CPU UART 0 */ /* 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); register_smp_ops(&loongson3_smp_ops);
board_nmi_handler_setup = mips_nmi_setup; board_nmi_handler_setup = mips_nmi_setup;