KumiSystems/openwrtv3
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

fix CBUS UART registration

Browse source 
Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 34191
This commit is contained in:
Florian Fainelli 2012-11-13 17:20:14 +00:00
parent 62c8ff19ad
commit 390b8eb864
2 changed files with 67 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
target/linux/malta/patches-3.6/001-MIPS-fix-CBUS-UART-irq.patch Normal file
View file

@ -0,0 +1,39 @@
From 132a7253fe87b1f4d71aab5abee3108a793234db Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 13 Nov 2012 10:41:50 +0100
Subject: [PATCH] MIPS: Malta: Fix interupt number of CBUS UART.
The CBUS UART's interrupt number was wrong conflicting with the interrupt
being tied to the Intel PIIX4. Since the PIIX4's interrupt is registered
before the CBUS UART which is not being used on most systems this would
not be noticed.
Attempts to open the ttyS2 CBUS UART would result in:
genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade)
serial_link_irq_chain: request failed: -16 for irq: 18
Qemu was written to match the kernel so will need to be fixed also.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit fe2ccd4dcebd3c5e264af1705bb9b659972418cc)
---
arch/mips/mti-malta/malta-platform.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c
index a8beca8..a906153 100644
--- a/arch/mips/mti-malta/malta-platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
@@ -47,7 +47,7 @@ static struct plat_serial8250_port uart8250_data[] = {
SMC_PORT(0x2F8, 3),
{
.mapbase = 0x1f000900, /* The CBUS UART */
- .irq = MIPS_CPU_IRQ_BASE + 2,
+ .irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB2,
.uartclk = 3686400, /* Twice the usual clk! */
.iotype = UPIO_MEM32,
.flags = CBUS_UART_FLAGS,
--
1.7.11.7

28
target/linux/malta/patches-3.6/index.html?p=ralf%2Flinux.git;a=patch;h=4ade440f81a3 Normal file
View file

@ -0,0 +1,28 @@
From 4ade440f81a3c248068d8b89eea7754cc8705b58 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 13 Nov 2012 14:33:30 +0100
Subject: [PATCH] MIPS: Malta: Fix build error
Caused by fe2ccd4dcebd3c5e264af1705bb9b659972418cc [MIPS: Malta: Fix
interupt number of CBUS UART.]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/mti-malta/malta-platform.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c
index c154181..7473217 100644
--- a/arch/mips/mti-malta/malta-platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
@@ -29,6 +29,7 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
+#include <asm/mips-boards/maltaint.h>
#include <mtd/mtd-abi.h>
#define SMC_PORT(base, int) \
--
1.7.11.7