Commit graph

54 commits

Author SHA1 Message Date
Tim Harvey
79366b8194 cns3xxx: fix GPIO controller interrupt enable
The cns3xxx interrupt controller uses a single register and as such
the 'mask' reg/functions must be used as opposed to the 'enable'/'disable'
reg/functions.

This fixes an issue that occurs if more than one GPIO on a specific controller
(there is GPIOA and GPIOB each having 32 GPIO's) uses interrupts. When one
would get enabled all others would be disabled prior to this patch.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-09-11 17:03:21 +02:00
Felix Fietkau
e9f76f0f46 cns3xxx: clean up patches
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-02-11 21:18:42 +01:00
Koen Vandeputte
597ea08038 cns3xxx: use proper macro's for ID handling
Compiled & tested on cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-02-07 11:39:08 +01:00
Koen Vandeputte
347884b345 cns3xxx: fix UART resource overlap
Port 1 registers the same IO resources as port 2 in the kernel resource
tree, which is wrong.
Fix this by using it's own resources as indicated in the overview
(cns3xxx.h).

Compiled & Tested on several GW2388-4 laguna boards which utilizes all 3
ports.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2016-11-05 10:18:27 +01:00
Felix Fietkau
0b3a64f862 cns3xxx: eliminate hardcoded kernel/rootfs partition split
This changes the sysupgrade format. To support upgrades from the old
firmware to the new one, legacy images are provided. Because of the old
partition split, these have to be specific to the NOR or SPI device.

The new sysupgrade images are suitable for begin put on flash directly,
and they are independent of NOR vs SPI flash variant.

Flashing back to old firmware is supported via using the old full-flash
images instead of the old sysupgrade images.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-09-19 14:27:26 +02:00
Felix Fietkau
58fbe07560 cns3xxx: move laguna.c changes out of patches, update it in files/
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-09-19 14:27:26 +02:00
Tim Harvey
1974ad5a96 cns3xxx: add GW2386 support
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2016-09-08 13:40:02 +02:00
Tim Harvey
1419087a35 cns3xxx: add GW2394 Support
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2016-09-08 13:40:02 +02:00
Koen Vandeputte
f532191c1c cns3xxx: fix RX softIRQ loop
Already reschedule when 1 or more frames came in.

Checking for a full queue could produce a re-schedule loop as
the checked RX ring location could contain undefined values
depending on activity in previous loops.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2016-06-17 04:13:07 +02:00
Felix Fietkau
9ab08d665f cns3xxx: improve ethernet performance by using the page fragment allocation API
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48580
2016-01-31 12:35:20 +00:00
Felix Fietkau
3d4444f257 cns3xxx: fix ethernet DMA ring allocation issues
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48579
2016-01-31 12:35:07 +00:00
Felix Fietkau
87e4f9f009 cns3xxx: update to linux 4.4
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48334
2016-01-18 22:38:23 +00:00
Felix Fietkau
91278df70e cns3xxx: fix a ethernet driver napi poll handling bug
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48333
2016-01-18 22:38:14 +00:00
Felix Fietkau
136747c564 cns3xxx: clean up SMP related code
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48332
2016-01-18 22:38:09 +00:00
Felix Fietkau
f366dc25d3 cns3xxx: remove obsolete file
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48330
2016-01-18 22:37:57 +00:00
Felix Fietkau
2ac8b1c1fe cns3xxx: remove unused define and use of a deprecated function
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48329
2016-01-18 22:37:51 +00:00
John Crispin
f0b708acdf cns3xxx: add GW2393 Support
Based off of the GW2391-C, but with the following changes:
 * 4x4in to 4x5in pcb
 * flat panel connector for LED signals

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>

SVN-Revision: 47920
2015-12-17 09:28:42 +00:00
John Crispin
c6d95f0752 cns3xxx: Fix comment
Original comment was wrong about which pads are being set.

Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>

SVN-Revision: 47919
2015-12-17 09:28:35 +00:00
Felix Fietkau
d0e4f71b9a cns3xxx: add missing dma mask for ethernet device
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43399
2014-11-26 18:48:05 +00:00
Felix Fietkau
ebf6331c10 cns3xxx: switch to using the upstream dwc2 driver instead of dwc_otg
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43398
2014-11-26 18:01:38 +00:00
Felix Fietkau
211669da3b cns3xxx: update to linux 3.14
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43397
2014-11-26 18:01:29 +00:00
Felix Fietkau
8c136e6b56 cns3xxx: set base device for ethernet port netdevs
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43395
2014-11-26 18:01:07 +00:00
Felix Fietkau
365cf9d10c cns3xxx: fix passing the device to dma mapping ops
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43394
2014-11-26 18:00:52 +00:00
Felix Fietkau
fa5237d936 cns3xxx: Adopt irq_domain support for cns3xxx gpio driver
Have gpio driver adopt irqdomain support so that there are
non-overlapping allocations of irq numbers mapped to gpio's.

Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>

SVN-Revision: 42844
2014-10-08 10:28:10 +00:00
Felix Fietkau
0563e0225e cns3xxx: fix register for enabling MMC/SD pins
also fixes a GPIO related regression from the upgrade to 3.10

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 42829
2014-10-07 10:37:09 +00:00
Felix Fietkau
3c7cd63b72 cns3xxx: update to linux 3.10
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 41917
2014-07-31 23:40:49 +00:00
Felix Fietkau
2603c9045d cns3xxx: ethernet - revert: clean up tx descs only when needed
This reverts commit 0772ab938c0aedd7f4cc7127059d6ce8cf929dfa.

Trying to optimize calls to eth_complete_tx in this fasion causes a regression
where when sending only the tx queue can get disabled until a packet is
received. This original call to eth_schedule_poll() is scheduled so it
should not cause a performance issue.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 40592
2014-04-29 15:52:12 +00:00
Imre Kaloz
8411a5703f Add GW2385 support
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 39894
2014-03-12 13:40:13 +00:00
Imre Kaloz
68022cac64 various dwc (OTG) driver fixups
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 39892
2014-03-12 13:37:40 +00:00
Felix Fietkau
8665c57923 cns3xxx: ethernet - clean up tx descs only when needed
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
2014-02-27 23:02:43 +00:00
Felix Fietkau
96eb3d883d cns3xxx: ethernet - resolve SMP issue
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
2014-02-27 23:02:37 +00:00
Imre Kaloz
b0fe7d1ec6 add pushbutton GPIO for GW2380/82/83
Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 38702
2013-11-10 09:55:17 +00:00
Felix Fietkau
6436b3f736 cns3xxx: fix USB ehci/ohci platform driver
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
2013-04-10 16:20:50 +00:00
Felix Fietkau
fde143b66f cns3xxx: remove the watchdog IRQ from the resources, it breaks the driver init and is useful only for testing
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36241
2013-04-07 11:24:30 +00:00
Felix Fietkau
bd6c9d6252 cns3xxx: ethernet - clean the tx ring before refilling the rx ring to reduce memory pressure
SVN-Revision: 35953
2013-03-11 02:29:53 +00:00
Felix Fietkau
d7a529709a cns3xxx: ethernet - clean the tx ring only in the poll function, not in the xmit handler
SVN-Revision: 35952
2013-03-11 02:29:47 +00:00
Felix Fietkau
0d13baff1e cns3xxx: increase number of ethernet driver rx buffers
SVN-Revision: 35951
2013-03-10 21:59:32 +00:00
Felix Fietkau
ee2b511e1f cns3xxx: prevent the ethernet driver from accessing uninitialized dma descriptor entries
SVN-Revision: 35950
2013-03-10 21:59:28 +00:00
Felix Fietkau
d22ac8d8fb cns3xxx: minor ethernet driver cleanup
SVN-Revision: 35949
2013-03-10 21:59:21 +00:00
Felix Fietkau
9facda9570 cns3xxx: use kmalloc instead of kzalloc for ethernet rx buffers
SVN-Revision: 35943
2013-03-10 18:25:20 +00:00
Felix Fietkau
c44506fcbd cns3xxx: fix an rx irq handling corner case
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
2013-03-10 18:25:16 +00:00
Felix Fietkau
c1adc79328 cns3xxx: fix ethernet driver memory barrier usage
SVN-Revision: 35941
2013-03-10 18:25:11 +00:00
Felix Fietkau
446409f43e cns3xxx: reduce buffer allocation size to 2048 bytes, improves ethernet performance
SVN-Revision: 35917
2013-03-10 01:27:04 +00:00
Felix Fietkau
95f14d052a cns3xxx: add linux 3.8 support and use it by default
SVN-Revision: 35908
2013-03-09 18:51:46 +00:00
Imre Kaloz
b63b970866 clean up PCI bus topology
This makes the PCI bus topology more standard for devices behind a bridge

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 35078
2013-01-10 13:23:33 +00:00
Imre Kaloz
2c05915b24 add nol2x0 cmdline to disable l2x0 cache
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
2012-12-23 18:53:38 +00:00
Florian Fainelli
822ee5053e cns3xxx: fix dwc_otg driver compat with udc-core
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
2012-12-04 16:19:18 +00:00
Imre Kaloz
77504ac06f split spi patch, follow mainline file naming
SVN-Revision: 34168
2012-11-12 08:22:14 +00:00
Imre Kaloz
9a780e0328 split the i2c patch, merge the retry fixup
SVN-Revision: 34167
2012-11-12 08:21:38 +00:00
Luka Perkov
16275bdd15 cns3xxx: convert dwc_otg patches to files
SVN-Revision: 34162
2012-11-11 20:03:58 +00:00