Commit Graph

12 Commits

Author SHA1 Message Date
Arnd Bergmann 0d2c9f0517 IXP4xx: use __iomem for MMIO
The ixp4xx queue manager uses "const struct qmgr_regs __iomem *" as the
type for a pointer that is passed to __raw_writel, which is not
allowed because of the const-ness.

Dropping the 'const' keyword fixes the problem. While we're here,
let's also drop the useless type cast.

Without this patch, building ixp4xx_defconfig results in:

In file included from arch/arm/mach-ixp4xx/ixp4xx_qmgr.c:15:0:
arch/arm/mach-ixp4xx/include/mach/qmgr.h: In function 'qmgr_put_entry':
arch/arm/mach-ixp4xx/include/mach/qmgr.h:96:2: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *'
In file included from drivers/net/ethernet/xscale/ixp4xx_eth.c:41:0:
arch/arm/mach-ixp4xx/include/mach/qmgr.h: In function 'qmgr_put_entry':
arch/arm/mach-ixp4xx/include/mach/qmgr.h:96:2: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *'
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c: In function 'qmgr_set_irq':
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c:41:9: warning: passing argument 2 of '__raw_writel' discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/include/asm/io.h:88:91: note: expected 'volatile void *' but argument is of type 'const u32 *'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2012-11-22 03:36:45 +00:00
Krzysztof Hałasa f0cdb15329 IXP4xx: Always ioremap() Queue Manager MMIO region at boot.
It doesn't make much sense to map QMgr dynamically - we almost always need it
and the static mapping will be needed for little-endian data-coherent operation
(to make QMgr region value-coherent).

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2012-11-22 03:36:30 +00:00
Krzysztof Hałasa 3c3a3b4c12 IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries.
Queues should be empty when released, if not, there is a safety valve.
Make sure the queue is usable after it triggers.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2011-02-06 16:49:48 +01:00
Krzysztof Hałasa 0771c69394 IXP42x: Use __fls() in QMgr interrupt handlers.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-05-23 23:37:04 +02:00
Krzysztof Hałasa d4c9e9fc97 IXP42x: Add QMgr support for IXP425 rev. A0 processors.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-05-23 23:36:03 +02:00
Krzysztof Hałasa a6a9fb857b IXP4xx: Add support for the second half of the 64 hardware queues.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-05-20 15:27:07 +02:00
Krzysztof Hałasa e6da96ace8 IXP4xx: move common debugging from network drivers to QMGR module.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-12-22 00:48:00 +01:00
Krzysztof Hałasa ae2754a975 IXP4xx: clear IRQ stat in qmgr_disable_irq().
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-12-22 00:41:50 +01:00
Krzysztof Hałasa 3edcfb2937 IXP4xx: check for queue being empty in qmgr_release_queue().
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-12-22 00:41:49 +01:00
Russell King a09e64fbc0 [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:55:48 +01:00
Krzysztof Halasa dac2f83fce Driver for IXP4xx built-in Ethernet ports
Adds a driver for built-in IXP4xx Ethernet ports.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-29 01:56:50 -04:00
Krzysztof Halasa 82a96f5790 [ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE features
This patch adds drivers for IXP4xx hardware Queue Manager and for
Network Processor Engines. Requires patch #4712 (reading/writing
CPU feature (aka fuse) bits).

Posted to linux-arm-kernel on 2 Dec 2007 and revised.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:15:25 +00:00