45 lines
1.3 KiB
Diff
45 lines
1.3 KiB
Diff
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From 2e7d18a213b94e4aeded7f35b7cd0d02b9b661cd Mon Sep 17 00:00:00 2001
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From: mokopatches <mokopatches@openmoko.org>
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Date: Fri, 25 Jul 2008 23:04:37 +0100
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Subject: [PATCH] gta01-dehang-printk.patch
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This is a temporary work-around Mike Westerhof for this bug:
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http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=788
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See also
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http://lists.openmoko.org/pipermail/openmoko-kernel/2008-February/000804.html
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(It's the 2nd option.)
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We may settle on a different solution in the future, depending on
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feedback from upstream.
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---
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drivers/serial/s3c2410.c | 9 +++++++++
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1 files changed, 9 insertions(+), 0 deletions(-)
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diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
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index 7117110..bd87c79 100644
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--- a/drivers/serial/s3c2410.c
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+++ b/drivers/serial/s3c2410.c
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@@ -1720,9 +1720,18 @@ static void
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s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
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{
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unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
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+ unsigned int umcon = rd_regl(cons_uart, S3C2410_UMCON);
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+
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+ /* If auto HW flow control enabled, temporarily turn it off */
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+ if (umcon & S3C2410_UMCOM_AFC)
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+ wr_regl(port, S3C2410_UMCON, (umcon & !S3C2410_UMCOM_AFC));
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+
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while (!s3c24xx_serial_console_txrdy(port, ufcon))
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barrier();
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wr_regb(cons_uart, S3C2410_UTXH, ch);
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+
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+ if (umcon & S3C2410_UMCOM_AFC)
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+ wr_regl(port, S3C2410_UMCON, umcon);
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}
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static void
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--
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1.5.6.3
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