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Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1069-gta01-dehang-printk.patch.patch')
-rw-r--r--target/linux/s3c24xx/patches-2.6.24/1069-gta01-dehang-printk.patch.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1069-gta01-dehang-printk.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1069-gta01-dehang-printk.patch.patch
new file mode 100644
index 0000000000..35051bfa33
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.24/1069-gta01-dehang-printk.patch.patch
@@ -0,0 +1,44 @@
+From f76a7a9e4e1cf2224e028e78a6869d3e8375dbe3 Mon Sep 17 00:00:00 2001
+From: mokopatches <mokopatches@openmoko.org>
+Date: Sun, 13 Apr 2008 07:23:58 +0100
+Subject: [PATCH] gta01-dehang-printk.patch
+ This is a temporary work-around Mike Westerhof for this bug:
+ http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=788
+
+See also
+http://lists.openmoko.org/pipermail/openmoko-kernel/2008-February/000804.html
+
+(It's the 2nd option.)
+
+We may settle on a different solution in the future, depending on
+feedback from upstream.
+---
+ drivers/serial/s3c2410.c | 9 +++++++++
+ 1 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
+index 6c93a1b..b566f42 100644
+--- a/drivers/serial/s3c2410.c
++++ b/drivers/serial/s3c2410.c
+@@ -1717,9 +1717,18 @@ static void
+ s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
+ {
+ unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
++ unsigned int umcon = rd_regl(cons_uart, S3C2410_UMCON);
++
++ /* If auto HW flow control enabled, temporarily turn it off */
++ if (umcon & S3C2410_UMCOM_AFC)
++ wr_regl(port, S3C2410_UMCON, (umcon & !S3C2410_UMCOM_AFC));
++
+ while (!s3c24xx_serial_console_txrdy(port, ufcon))
+ barrier();
+ wr_regb(cons_uart, S3C2410_UTXH, ch);
++
++ if (umcon & S3C2410_UMCOM_AFC)
++ wr_regl(port, S3C2410_UMCON, umcon);
+ }
+
+ static void
+--
+1.5.6.5
+