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bcm963xx: fix uart isr 

The ISR ended up in an endless loop because the TX ISR never got used or masked.
This patch basically makes the TX ISR mask the the TX interrupt when it
encounters it, because it doesn't even use the TX interrupt.

Signed-off-by: Axel Gembe <ago@bastart.eu.org>

SVN-Revision: 11179
owl
Felix Fietkau 2008-05-18 17:31:35 +00:00
parent ca851edf10
commit 4db60563fc
1 changed files with 36 additions and 0 deletions
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36
target/linux/brcm63xx/patches-2.6.25/070-bcm963xx_fix_uart_isr.patch Normal file
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@ -0,0 +1,36 @@
From 7bc3950017d2c54883591367723b7fd84cc65d6f Mon Sep 17 00:00:00 2001
From: Axel Gembe <ago@bastart.eu.org>
Date: Sun, 18 May 2008 12:09:14 +0200
Subject: [PATCH] bcm963xx: fix uart isr
The ISR ended up in an endless loop because the TX ISR never got used or masked.
This patch basically makes the TX ISR mask the the TX interrupt when it
encounters it, because it doesn't even use the TX interrupt.
Signed-off-by: Axel Gembe <ago@bastart.eu.org>
---
drivers/serial/bcm63xx_cons.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/serial/bcm63xx_cons.c b/drivers/serial/bcm63xx_cons.c
index 2302ea6..c60b8f0 100644
--- a/drivers/serial/bcm63xx_cons.c
+++ b/drivers/serial/bcm63xx_cons.c
@@ -258,8 +258,14 @@ static void bcm_interrupt(int irq, void *dev, struct pt_regs *regs)
while (intStat) {
if (intStat & RXINT)
receive_chars(info);
+
+#if 0 /* This code is total bullshit, TXINT doesn't get masked anywhere, so this will give an endless loop */
+
else if (intStat & TXINT)
info->port->intStatus = TXINT;
+
+#endif /* 0 */
+
else /* don't know what it was, so let's mask it */
info->port->intMask &= ~intStat;
--
1.5.5.1