linux-kernel - [PATCH v2] MIPS: Fix console output for Fulong2e system

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Message-Id: <1440994798-14032-1-git-send-email-linux@roeck-us.net>
Date:	Sun, 30 Aug 2015 21:19:58 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	Huacai Chen <chenhc@...ote.com>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v2] MIPS: Fix console output for Fulong2e system

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")
Acked-by: Huacai Chen <chenhc@...ote.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
v2: Changed subject to 'MIPS'
    Added Acked-by:
    Rebased to v4.2 and re-tested with qemu

 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;
-- 
2.1.4

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