summaryrefslogtreecommitdiff
path: root/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
AgeCommit message (Collapse)AuthorFilesLines
2019-04-23ARM: ixp4xx: Move NPE and QMGR to drivers/socLinus Walleij1-379/+0
The Network Processing Engine and Queue Manager are versatile firmware components used by several IXP4xx drivers. Drivers are relying on getting access to these components using <mach/*> headers which does not work with multiplatform. We need to find a better place for the drivers to live. Let's first move them to drivers/soc and the start to refactor a bit by passing resources and moving headers. This patch introduce static IRQ assignments but that will be fixed by later patches in this series. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-23ARM: ixp4xx: Add device tree boot supportLinus Walleij1-0/+5
This adds a minimal support for booting IXP4xx systems from device tree. We have to add hacks to the QMGR, NPE and notably also ethernet and watchdog drivers so that they don't crash the platform: these drivers are unconditionally starting to grab regions of statically remapped IO space with no concern of the device model or other platforms. We will go in and properly fix these drivers as we go along but for now this hack gets us to a place where we can start working on proper device tree support for these platforms. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-19ARM: ixp4xx: Convert to SPARSE_IRQLinus Walleij1-0/+2
This localizes the <mach/irqs.h> header to the mach-ixp4xx directory, removes NR_IRQS and switches IXP4xx over to using SPARSE_IRQ. This is a prerequisite for DT support. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-22IXP4xx: use __iomem for MMIOArnd Bergmann1-2/+2
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>
2012-11-22IXP4xx: Always ioremap() Queue Manager MMIO region at boot.Krzysztof Hałasa1-12/+2
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>
2011-02-06IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries.Krzysztof Hałasa1-4/+5
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>
2009-05-24IXP42x: Use __fls() in QMgr interrupt handlers.Krzysztof Hałasa1-15/+20
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-05-24IXP42x: Add QMgr support for IXP425 rev. A0 processors.Krzysztof Hałasa1-8/+59
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-05-20IXP4xx: Add support for the second half of the 64 hardware queues.Krzysztof Hałasa1-22/+49
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-12-22IXP4xx: move common debugging from network drivers to QMGR module.Krzysztof Hałasa1-12/+29
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-12-22IXP4xx: clear IRQ stat in qmgr_disable_irq().Krzysztof Hałasa1-0/+1
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-12-22IXP4xx: check for queue being empty in qmgr_release_queue().Krzysztof Hałasa1-0/+4
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King1-1/+1
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-29Driver for IXP4xx built-in Ethernet portsKrzysztof Halasa1-0/+2
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>
2008-02-04[ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE featuresKrzysztof Halasa1-0/+274
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>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-25 03:55:27 +0300