From patchwork Fri Aug 7 05:57:16 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: mips: Fix console output for Fulong2e system From: Guenter Roeck X-Patchwork-Id: 10896 Message-Id: <1438927036-1435-1-git-send-email-linux@roeck-us.net> To: Ralf Baechle Cc: Huacai Chen , linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Guenter Roeck Date: Thu, 6 Aug 2015 22:57:16 -0700 Commit 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface") made the number of UARTs dynamic if LEFI_FIRMWARE_INTERFACE is configured. Unfortunately, it did not initialize the number of UARTs if LEFI_FIRMWARE_INTERFACE is not configured. As a result, the Fulong2e system has no console. Fixes: 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface") Cc: Huacai Chen Signed-off-by: Guenter Roeck --- Never mind my earlier e-mail, I figured it out. Should be a candidate for stable (v3.19+, ie v4.1 in practice). arch/mips/loongson64/common/env.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/loongson64/common/env.c b/arch/mips/loongson64/common/env.c index f6c44dd332e2..d6d07ad56180 100644 --- a/arch/mips/loongson64/common/env.c +++ b/arch/mips/loongson64/common/env.c @@ -64,6 +64,9 @@ void __init prom_init_env(void) } if (memsize == 0) memsize = 256; + + loongson_sysconf.nr_uarts = 1; + pr_info("memsize=%u, highmemsize=%u\n", memsize, highmemsize); #else struct boot_params *boot_p;