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From: "Jayachandran C" <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org, ralf@linux-mips.org
Cc: "Florian Fainelli" <florian@openwrt.org>,
	"Jayachandran C" <jayachandranc@netlogicmicro.com>
Subject: [PATCH UPDATED 06/12] MIPS: Netlogic: early console fix
Date: Mon, 16 Jul 2012 15:33:37 +0530	[thread overview]
Message-ID: <1342433017-24485-1-git-send-email-jayachandranc@netlogicmicro.com> (raw)
In-Reply-To: <2602396.OWAlsVeLic@flexo>

In prom_putchar(), wait for just the TX empty bit to clear in the
UART LSR.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
---
[Updated to use UART_LSR_THRE instead of 0x20, as suggested by 
 Florian Fainelli <florian@openwrt.org>]

 arch/mips/netlogic/common/earlycons.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/netlogic/common/earlycons.c b/arch/mips/netlogic/common/earlycons.c
index f193f7b..53b200a5 100644
--- a/arch/mips/netlogic/common/earlycons.c
+++ b/arch/mips/netlogic/common/earlycons.c
@@ -54,7 +54,7 @@ void prom_putchar(char c)
 #elif defined(CONFIG_CPU_XLR)
 	uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
 #endif
-	while (nlm_read_reg(uartbase, UART_LSR) == 0)
+	while ((nlm_read_reg(uartbase, UART_LSR) & UART_LSR_THRE) == 0)
 		;
 	nlm_write_reg(uartbase, UART_TX, c);
 }
-- 
1.7.9.5

  reply	other threads:[~2012-07-16 10:03 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-13 16:23 [PATCH 00/12] Netlogic XLR/XLP updates Jayachandran C
2012-07-13 16:23 ` [PATCH 01/12] MIPS: Netlogic: Fix indentation of smpboot.S Jayachandran C
2012-07-13 16:23 ` [PATCH 02/12] MIPS: Netlogic: Fix low-level flush on core wakeup Jayachandran C
2012-07-24 14:59   ` Ralf Baechle
2012-07-13 16:23 ` [PATCH 03/12] MIPS: Netlogic: merge of.c into setup.c Jayachandran C
2012-07-13 16:23 ` [PATCH 04/12] MIPS: Netlogic: remove cpu_has_dc_aliases define for XLP Jayachandran C
2012-07-13 16:23 ` [PATCH 05/12] MIPS: PCI: Fix for byte swap for Netlogic XLP Jayachandran C
2012-07-24 14:58   ` Ralf Baechle
2012-07-13 16:23 ` [PATCH 06/12] MIPS: Netlogic: early console fix Jayachandran C
2012-07-13 16:27   ` Florian Fainelli
2012-07-16 10:03     ` Jayachandran C [this message]
2012-07-13 16:23 ` [PATCH 07/12] MIPS: Netlogic: DTS file for XLP boards Jayachandran C
2012-07-13 16:23 ` [PATCH 08/12] MIPS: Netlogic: Move serial ports to device tree Jayachandran C
2012-07-13 16:23 ` [PATCH 09/12] MIPS: Netlogic: Add support for built in DTB Jayachandran C
2012-07-13 16:23 ` [PATCH 10/12] MIPS: oprofile: Support for XLR/XLS processors Jayachandran C
2012-07-13 16:23 ` [PATCH 11/12] MIPS: perf: Add XLP support for hardware perf Jayachandran C
2012-07-13 16:23 ` [PATCH 12/12] MIPS: Netlogic: XLP defconfig update Jayachandran C
2012-08-21 12:52   ` Ralf Baechle
2012-08-22 12:57     ` Jayachandran C.

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