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* cns3xxx: ethernet - clean up tx descs only when neededFelix Fietkau2014-02-271-4/+8
| | | | | | | | | | | We already clean up tx descriptors in the napi eth_poll() function so it would likely be rare to run out of available descriptors in eth_xmit. Thus we can clean them up only when needed and return busy only when we still don't have enough. Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 39762
* cns3xxx: ethernet - resolve SMP issueFelix Fietkau2014-02-271-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The combination of r35942 and r35952 causes an issue where eth_schedule_poll() can be called from a different CPU between the call to napi_complete() and the setting of cur_index which can break the rx ring accounting and cause ethernet latency and/or ethernet stalls. The issue can be easilly created by adding a couple of artificial delays such as: @@ -715,6 +715,7 @@ static int eth_poll(struct napi_struct *napi, int budget) if (!received) { napi_complete(napi); +udelay(1000); enable_irq(IRQ_CNS3XXX_SW_R0RXC); } @@ -727,6 +728,7 @@ static int eth_poll(struct napi_struct *napi, int budget) rx_ring->cur_index = i; wmb(); +udelay(1000); enable_rx_dma(sw); return received; This patch moves the setting of cur_index back up where it needs to be and addresses the original corner case that r35942 was trying to catch in an improved fashion by checking to see if the rx descriptor ring has become full before interrupts were re-enabled so that a poll can be scheduled again and avoid an rx stall caused by rx interrupts ceasing to fire again. Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 39761
* add uImage image buildImre Kaloz2013-11-101-26/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - add building of a standard uImage along with the combined kernel+rootfs - remove 'old' image build - that was for a very old and obsolete bootloader To update the bootloader for GW2387,GW2388,GW2391 (NOR Flash) from uboot: put latest NOR bootloader on tftp server: http://svn.gateworks.com/laguna/trunk/images/u-boot_nor.bin Laguna> setenv ipaddr <localip> Laguna> setenv ipaddr <serverip> Laguna> tftpboot 0x800000 laguna/u-boot-nor.bin Laguna> erase 0x10000000 +$(filesize) Laguna> cp.b 0x800000 0x10000000 $(filesize) Laguna> reset To update the bootloader for GW2380,GW2382,GW2383 (SPI Flash) from uboot: put latest SPI bootloader on tftp server: http://svn.gateworks.com/laguna/trunk/images/u-boot_spi.bin Laguna> setenv ipaddr <localip> Laguna> setenv ipaddr <serverip> Laguna> tftpboot 0x800000 laguna/u-boot-spi.bin Laguna> erase 0x60000000 +$(filesize) Laguna> cp.b 0x800000 0x60000000 $(filesize) Laguna> reset Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 38703
* add pushbutton GPIO for GW2380/82/83Imre Kaloz2013-11-101-0/+3
| | | | | | Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 38702
* build: unify arm target cflagsFelix Fietkau2013-09-261-1/+2
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 38211
* build: unify target independent optimization optionsFelix Fietkau2013-07-291-1/+1
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37600
* targets: prepare for supporting normal and initramfs imagesFlorian Fainelli2013-06-272-2/+2
| | | | | | | | | | | | In order to support both normal images and initramfs, ensure that each target sets KERNELNAME properly so that the generic kernel building code can copy the corresponding files over $(KDIR) with the appropriate extension. Update the various paths to the kernel and wrapper images from $(LINUX_DIR)/arch/$(ARCH)/boot/$(foo) to $(KDIR)/$(foo). Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 37049
* kernel: update linux 3.8 to 3.8.13Gabor Juhos2013-05-261-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36724
* kernel: update linux 3.8 to 3.8.12Gabor Juhos2013-05-081-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36576
* kernel: update linux 3.8 to 3.8.11Gabor Juhos2013-05-011-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36507
* kernel: update linux 3.8 to 3.8.10Gabor Juhos2013-04-301-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36493
* kernel: update linux 3.8 to 3.8.9Gabor Juhos2013-04-261-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36453
* kernel: update linux 3.8 to 3.8.8Gabor Juhos2013-04-191-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36363
* kernel: update linux 3.8 to 3.8.7Gabor Juhos2013-04-141-1/+1
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36332
* cns3xxx: fix USB ehci/ohci platform driverFelix Fietkau2013-04-102-4/+52
| | | | | | | | | | | Update ehci/ohci driver registration to conform to the new platform drivers. This fixes missing USB host support in 3.8.x Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 36309
* cns3xxx: remove the watchdog IRQ from the resources, it breaks the driver ↵Felix Fietkau2013-04-072-6/+1
| | | | | | | | init and is useful only for testing Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 36241
* kernel: update linux 3.8 to 3.8.6Gabor Juhos2013-04-063-39/+11
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36215
* kernel: update linux 3.8 to 3.8.3Gabor Juhos2013-03-152-2/+2
| | | | | | | | Also refresh the related generic/platform patches. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 36039
* cns3xxx: ethernet - clean the tx ring before refilling the rx ring to reduce ↵Felix Fietkau2013-03-111-4/+4
| | | | | | memory pressure SVN-Revision: 35953
* cns3xxx: ethernet - clean the tx ring only in the poll function, not in the ↵Felix Fietkau2013-03-111-6/+11
| | | | | | xmit handler SVN-Revision: 35952
* cns3xxx: increase number of ethernet driver rx buffersFelix Fietkau2013-03-101-1/+1
| | | | SVN-Revision: 35951
* cns3xxx: prevent the ethernet driver from accessing uninitialized dma ↵Felix Fietkau2013-03-101-1/+2
| | | | | | descriptor entries SVN-Revision: 35950
* cns3xxx: minor ethernet driver cleanupFelix Fietkau2013-03-101-35/+19
| | | | SVN-Revision: 35949
* cns3xxx: use kmalloc instead of kzalloc for ethernet rx buffersFelix Fietkau2013-03-101-1/+1
| | | | SVN-Revision: 35943
* cns3xxx: fix an rx irq handling corner caseFelix Fietkau2013-03-101-5/+5
| | | | | | | | | | | | | | | | When an rx interrupt comes in, rx interrupts are disabled and NAPI polling is scheduled. During the NAPI poll, the driver first processes received frames in the ring, then fills the dma descriptor slots with new buffers and calls tx complete, before finally re-enabling rx interrupts and completing NAPI (if below the budget). If the hardware rx queue overflows before the napi complete is called, the hardware will not throw any further rx interrupts and rx processing stops completely. Fix this by keeping NAPI polling scheduled until it completes a poll without receiving any packets, and also handle NAPI completion before refilling rx or completing tx. SVN-Revision: 35942
* cns3xxx: fix ethernet driver memory barrier usageFelix Fietkau2013-03-101-5/+8
| | | | SVN-Revision: 35941
* cns3xxx: reduce buffer allocation size to 2048 bytes, improves ethernet ↵Felix Fietkau2013-03-101-1/+1
| | | | | | performance SVN-Revision: 35917
* cns3xxx: remove linux 3.3 supportFelix Fietkau2013-03-1023-1558/+0
| | | | SVN-Revision: 35916
* cns3xxx: disable CONFIG_PROC_STRIPPED and add an init script to set the ↵Felix Fietkau2013-03-102-0/+22
| | | | | | ethernet cpu affinity (improves lan<->wlan bridging performance) SVN-Revision: 35915
* cns3xxx: add linux 3.8 support and use it by defaultFelix Fietkau2013-03-0931-25/+1543
| | | | SVN-Revision: 35908
* Revert "[cns3xxx]: clean up PCI bus topology" (r35079)Felix Fietkau2013-03-021-27/+0
| | | | | | It breaks PCIe IRQ mapping and possibly other things SVN-Revision: 35842
* target: enable XZ BCJ decompressor code after r35097Florian Fainelli2013-01-141-0/+2
| | | | | | | | | Required to actually be able to mount squashfs xz compressed filesystems. Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 35156
* clean up PCI bus topologyImre Kaloz2013-01-101-0/+27
| | | | | | | | This makes the PCI bus topology more standard for devices behind a bridge Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 35079
* clean up PCI bus topologyImre Kaloz2013-01-101-2/+2
| | | | | | | | This makes the PCI bus topology more standard for devices behind a bridge Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 35078
* add nol2x0 cmdline to disable l2x0 cacheImre Kaloz2012-12-232-2/+47
| | | | | | | | | | | L2 cache via L2X0 cache controller available on some ARM boards can provide a performance boost in some situations but decrease performance in others. This adds a kernel cmdline to disable L2X0 for cns3xxx based boards. Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 34874
* kernel: add missing USB configuration symbols after r34501Florian Fainelli2012-12-071-0/+2
| | | | | | Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34568
* cns3xxx: fix dwc_otg driver compat with udc-coreFlorian Fainelli2012-12-042-94/+0
| | | | | | | | | | | function. This removes those from the dwc_otg driver and removes the patch that comments out the linkage of udc-core so that the dwc_otg driver can co-exist happily with other USB Device Controllers. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34475
* cns3xxx: advertise pcie usb usbgadget featuresFlorian Fainelli2012-12-041-1/+1
| | | | | | | Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34474
* remove common symbols from 3.3 configsGabor Juhos2012-11-291-2/+0
| | | | | | | | The removed symbols are present in the generic configuration. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 34403
* cns3xxx: merge gpio patchesLuka Perkov2012-11-122-206/+35
| | | | SVN-Revision: 34174
* cns3xxx: fix build failure after r34168Luka Perkov2012-11-121-0/+16
| | | | SVN-Revision: 34173
* reorder, rename and refresh patchesImre Kaloz2012-11-1222-36/+25
| | | | SVN-Revision: 34169
* split spi patch, follow mainline file namingImre Kaloz2012-11-122-469/+450
| | | | SVN-Revision: 34168
* split the i2c patch, merge the retry fixupImre Kaloz2012-11-123-462/+396
| | | | SVN-Revision: 34167
* generate single images for tftp flashing as well as sysupgrade images for ↵Imre Kaloz2012-11-111-12/+33
| | | | | | boards with old u-boot SVN-Revision: 34163
* cns3xxx: convert dwc_otg patches to filesLuka Perkov2012-11-1120-22807/+22735
| | | | SVN-Revision: 34162
* cns3xxx: convert ethernet patches to filesLuka Perkov2012-11-1110-2090/+1400
| | | | SVN-Revision: 34161
* cns3xxx: clean up pcie patchesImre Kaloz2012-11-094-118/+25
| | | | | | | | | Combine two pcie patches (2nd patch undid the 1st patch) together and refresh the other affected patches Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 34132
* cns3xxx: exit from laguna late_initcall if not running on laguna boardLuka Perkov2012-11-081-0/+3
| | | | SVN-Revision: 34120
* cns3xxx: add PPS support for lagunaImre Kaloz2012-11-082-0/+27
| | | | | | | | | | Many Laguna products have on-board GPS with Pulse-per-second (PPS) support. This patch adds kernel support (statically) and adds the platform data in laguna board support. Signed-off-by: Tim Harvey <tharvey@gateworks.com> SVN-Revision: 34115
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