From: Alexey Galakhov <agalakhov@gmail.com>
To: linux-samsung-soc@vger.kernel.org
Cc: Alexey Galakhov <agalakhov@gmail.com>,
Kukjin Kim <kgene.kim@samsung.com>,
Russell King <linux@arm.linux.org.uk>
Subject: [PATCH] ARM: S5PV210: Fix early uart output in fifo mode
Date: Fri, 8 Feb 2013 19:00:54 +0600 [thread overview]
Message-ID: <1360328454-20321-1-git-send-email-agalakhov@gmail.com> (raw)
Enabling UART FIFO in bootloader caused the kernel infinite
loop on S5PV210 due to uninitialized fifo_max and fifo_mask global
variables. This patch adds the correct initialization.
Signed-off-by: Alexey Galakhov <agalakhov@gmail.com>
---
arch/arm/mach-s5pv210/include/mach/uncompress.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-s5pv210/include/mach/uncompress.h b/arch/arm/mach-s5pv210/include/mach/uncompress.h
index 08ff2fd..ef977ea 100644
--- a/arch/arm/mach-s5pv210/include/mach/uncompress.h
+++ b/arch/arm/mach-s5pv210/include/mach/uncompress.h
@@ -19,6 +19,8 @@
static void arch_detect_cpu(void)
{
/* we do not need to do any cpu detection here at the moment. */
+ fifo_mask = S5PV210_UFSTAT_TXMASK;
+ fifo_max = 63 << S5PV210_UFSTAT_TXSHIFT;
}
#endif /* __ASM_ARCH_UNCOMPRESS_H */
--
1.7.10.4
next reply other threads:[~2013-02-08 13:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-08 13:00 Alexey Galakhov [this message]
2013-02-08 22:48 ` [PATCH] ARM: S5PV210: Fix early uart output in fifo mode Kukjin Kim
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