Hi Lee Jones
On Wednesday 30 November 2016 02:39 AM, Dmitry Torokhov wrote:
> On Tue, Nov 29, 2016 at 11:11:35AM +0530, Mugunthan V N wrote:
>> On Friday 25 November 2016 03:29 PM, Lee Jones wrote:
>>> On Fri, 25 Nov 2016, Mugunthan V N wrote:
>>>
>>>> Hi Dm
On Friday 25 November 2016 03:29 PM, Lee Jones wrote:
> On Fri, 25 Nov 2016, Mugunthan V N wrote:
>
>> Hi Dmitry Torokhov,
>>
>> On Thursday 10 November 2016 10:05 PM, Mugunthan V N wrote:
>>> This patch series enables ADC to be clocked at 24MHz as the
>>>
Hi Dmitry Torokhov,
On Thursday 10 November 2016 10:05 PM, Mugunthan V N wrote:
> This patch series enables ADC to be clocked at 24MHz as the
> TI AM335x ADC driver has already adopted to use DMA to transfer
> ADC samples. Now ADC can generated upto 800K Samples per second
> with the
assumed that
it is for 3MHz TSCADC clock and will be calculated as per current
clock speed.
Signed-off-by: Mugunthan V N
---
drivers/input/touchscreen/ti_am335x_tsc.c | 31 +++
1 file changed, 23 insertions(+), 8 deletions(-)
diff --git a/drivers/input/touchscreen
Increase ADC reference clock from 3MHz to 24MHz so that the
sampling rates goes up from 100K samples per second to 800K
samples per second on AM335x and AM437x SoC.
Signed-off-by: Mugunthan V N
---
include/linux/mfd/ti_am335x_tscadc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
clock. Representing the
charge delay of touchscreen in terms of ADC clocks is incorrect.
So change this representation to ti,charge-delay-ns, which driver
can convert it to number clock cycles based on ref clock
frequency.
Signed-off-by: Mugunthan V N
---
.../bindings/input/touchscreen/ti-tsc
http://pastebin.ubuntu.com/23456616/
Mugunthan V N (3):
dt/binding: ti-tsc-adc: deprecate ti,charge-delay and add binding doc
for ti,charge-delay-ns
Input: ti_am335x_tsc: Add support for ti,charge-delay-ns
drivers: mfd: ti_am335x_tscadc: increase ADC ref clock to 24MHz
.../bindings/
On Monday 24 October 2016 11:32 AM, Mugunthan V N wrote:
> Increase ADC reference clock from 3MHz to 24MHz so that the
> sampling rates goes up from 100K samples per second to 800K
> samples per second on AM335x and AM437x SoC.
>
> Also increase opendelay for touchscreen c
On Tuesday 25 October 2016 02:28 AM, John Syne wrote:
>> > On Oct 23, 2016, at 11:02 PM, Mugunthan V N wrote:
>> >
>> > Increase ADC reference clock from 3MHz to 24MHz so that the
>> > sampling rates goes up from 100K samples per second to 800K
>> >
the same amount touch events reported via
evtest on AM335x GP EVM.
Signed-off-by: Mugunthan V N
---
This patch depends on ADC DMA patch series [1]
Without DMA support, when ADC ref clock is set at 24MHz, I am
seeing fifo overflow as CPU is not able to pull the ADC samples.
This answers that DMA
On Sunday 09 October 2016 02:00 PM, Jonathan Cameron wrote:
> On 05/10/16 10:04, Mugunthan V N wrote:
>> This patch adds the required pieces to ti_am335x_adc driver for
>> DMA support
>>
>> Signed-off-by: Mugunthan V N
> Hi,
>
> Just the one question inline
ial console.
>
> Fixes: 761ed4a94582ab29 ("tty: serial_core: convert uart_close to use
> tty_port_close")
> Reported-by: Niklas Söderlund
> Signed-off-by: Geert Uytterhoeven
> Acked-by: Rob Herring
Fixes some junk characters seen on boot console on TI platforms.
Te
onvert uart_close to use tty_port_close"
a5a2b13074fd "serial: core: fix potential NULL pointer dereference"
[1] - http://pastebin.ubuntu.com/23343431/
[2] - http://pastebin.ubuntu.com/23343435/
Regards
Mugunthan V N
Add support for programmable MAC impedance configuration
Signed-off-by: Mugunthan V N
---
drivers/net/phy/dp83867.c | 28
1 file changed, 28 insertions(+)
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 91177a4..1b63924 100644
--- a/drivers
The default impedance settings of the phy is not the optimal
value, due to this the second ethernet is not working. Fix it
with correct values which makes the second ethernet port to work.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 2 ++
1 file changed, 2 insertions
The current delay settings of the phy are not the optimal value,
fix it with correct values.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/dra72-evm-revc.dts
b/arch/arm/boot
nrent implementation.
* Corrected the phy delay timings to the optimal value.
[1] - http://www.ti.com/lit/ds/symlink/dp83867ir.pdf
[2] - http://pastebin.ubuntu.com/23343139/
[3] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git dp83867-v4
Mugunthan V N (4):
net: phy: dp83867: Add document
Add documention of ti,min-output-impedance and ti,max-output-impedance
which can be used to correct MAC impedance mismatch using phy extended
registers.
Signed-off-by: Mugunthan V N
---
Documentation/devicetree/bindings/net/ti,dp83867.txt | 12
1 file changed, 12 insertions
On Monday 10 October 2016 06:48 PM, Rob Herring wrote:
> On Thu, Oct 06, 2016 at 10:43:52AM +0530, Mugunthan V N wrote:
>> Add documention of ti,impedance-control which can be used to
>
> Needs updating.
Oops, will update this in next version.
>
>> correct MAC impe
Add support for programmable MAC impedance configuration
Signed-off-by: Mugunthan V N
---
drivers/net/phy/dp83867.c | 28
1 file changed, 28 insertions(+)
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 91177a4..1b63924 100644
--- a/drivers
Add documention of ti,impedance-control which can be used to
correct MAC impedance mismatch using phy extended registers.
Signed-off-by: Mugunthan V N
---
Documentation/devicetree/bindings/net/ti,dp83867.txt | 12
1 file changed, 12 insertions(+)
diff --git a/Documentation
The default impedance settings of the phy is not the optimal
value, due to this the second ethernet is not working. Fix it
with correct values which makes the second ethernet port to work.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 2 ++
1 file changed, 2 insertions
timal value.
[1] - http://www.ti.com/lit/ds/symlink/dp83867ir.pdf
[2] - http://pastebin.ubuntu.com/23283056/
[3] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git dp83867-v3
Mugunthan V N (4):
net: phy: dp83867: Add documentation for optional impedance control
net: phy: dp83867
The current delay settings of the phy are not the optimal value,
fix it with correct values.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/dra72-evm-revc.dts
b/arch/arm/boot
This patch adds the required pieces to ti_am335x_adc driver for
DMA support
Signed-off-by: Mugunthan V N
---
drivers/iio/adc/ti_am335x_adc.c | 148 ++-
include/linux/mfd/ti_am335x_tscadc.h | 7 ++
2 files changed, 152 insertions(+), 3 deletions(-)
diff
Add DMA properties for tscadc
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am4372.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 0fadae5..6094d17 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot
Add DMA properties for tscadc
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am33xx.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 98748c6..6d607b8 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot
://pastebin.ubuntu.com/23278405/
[2] - http://pastebin.ubuntu.com/23211494/
[3] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git iio-dma-v2
Mugunthan V N (4):
mfd: ti_am335x_tscadc: store physical address
drivers: iio: ti_am335x_adc: add dma support
ARM: dts: am33xx: add DMA
store the physical address of the device in its priv to use it
for DMA addressing in the client drivers.
Signed-off-by: Mugunthan V N
---
drivers/mfd/ti_am335x_tscadc.c | 1 +
include/linux/mfd/ti_am335x_tscadc.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/mfd
On Wednesday 05 October 2016 02:16 PM, Peter Ujfalusi wrote:
> On 10/05/16 11:17, Mugunthan V N wrote:
>> On Wednesday 05 October 2016 12:01 PM, Peter Ujfalusi wrote:
>>> On 10/05/16 09:21, Mugunthan V N wrote:
>>>> On Tuesday 04 October 2016 02:02 PM, Peter Ujfalusi
On Wednesday 05 October 2016 12:01 PM, Peter Ujfalusi wrote:
> On 10/05/16 09:21, Mugunthan V N wrote:
>> On Tuesday 04 October 2016 02:02 PM, Peter Ujfalusi wrote:
>>> On 10/03/16 16:03, Mugunthan V N wrote:
>>>> +static int tiadc_request_dm
On Tuesday 04 October 2016 02:02 PM, Peter Ujfalusi wrote:
> On 10/03/16 16:03, Mugunthan V N wrote:
>> +static int tiadc_request_dma(struct platform_device *pdev,
>> + struct tiadc_device *adc_dev)
>> +{
>> +struct tiadc_dma
On Tuesday 04 October 2016 06:41 PM, Lokesh Vutla wrote:
>
> On Tuesday 04 October 2016 06:26 PM, Mugunthan V N wrote:
>> > The default impedance settings of the phy is not the optimal
>> > value, due to this the second ethernet is not working. Fix it
>> > wi
min-output-imepdance"))
>
> Did you really test this? Or did you make the same typos in your device
> tree file?
>
I have tested this and attached the log in cover letter. Since there is
a typo error on both dts and driver it worked as expected. Will send a
v3 ASAP.
Regards
Mugunthan V N
Add documention of ti,impedance-control which can be used to
correct MAC impedance mismatch using phy extended registers.
Signed-off-by: Mugunthan V N
---
Documentation/devicetree/bindings/net/ti,dp83867.txt | 12
1 file changed, 12 insertions(+)
diff --git a/Documentation
Add support for programmable MAC impedance configuration
Signed-off-by: Mugunthan V N
---
drivers/net/phy/dp83867.c | 28
1 file changed, 28 insertions(+)
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 91177a4..795ae17 100644
--- a/drivers
The default impedance settings of the phy is not the optimal
value, due to this the second ethernet is not working. Fix it
with correct values which makes the second ethernet port to work.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 2 ++
1 file changed, 2 insertions
mlink/dp83867ir.pdf
[2] - http://pastebin.ubuntu.com/23274616/
[3] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git dp83867-v2
Mugunthan V N (4):
net: phy: dp83867: Add documentation for optional impedance control
net: phy: dp83867: add support for MAC impedance configuration
ARM: dts:
The current delay settings of the phy are not the optimal value,
fix it with correct values.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/dra72-evm-revc.dts
b/arch/arm/boot
Add DMA properties for tscadc
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am4372.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 0fadae5..6094d17 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot
This patch adds the required pieces to ti_am335x_adc driver for
DMA support
Signed-off-by: Mugunthan V N
---
drivers/iio/adc/ti_am335x_adc.c | 145 ++-
include/linux/mfd/ti_am335x_tscadc.h | 7 ++
2 files changed, 149 insertions(+), 3 deletions(-)
diff
://pastebin.ubuntu.com/23211494/
[4] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git iio-dma-v2
Mugunthan V N (4):
mfd: ti_am335x_tscadc: store physical address
drivers: iio: ti_am335x_adc: add dma support
ARM: dts: am33xx: add DMA properties for tscadc
ARM: dts: am4372: add DMA
Add DMA properties for tscadc
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am33xx.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 98748c6..6d607b8 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot
store the physical address of the device in its priv to use it
for DMA addressing in the client drivers.
Signed-off-by: Mugunthan V N
---
drivers/mfd/ti_am335x_tscadc.c | 1 +
include/linux/mfd/ti_am335x_tscadc.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/mfd
On Wednesday 28 September 2016 01:10 AM, Lee Jones wrote:
> On Wed, 21 Sep 2016, Mugunthan V N wrote:
>
>> store the physical address of the device in its priv to use it
>> for DMA addressing in the client drivers.
>>
>> Signed-off-by: Mugunthan V N
>> --
On Sunday 25 September 2016 03:11 PM, Jonathan Cameron wrote:
> On 21/09/16 17:11, Mugunthan V N wrote:
>> > The ADC has a 64 work depth fifo length which holds the ADC data
>> > till the CPU reads. So when a user program needs a large ADC data
>> > to operate on, th
On Thursday 22 September 2016 11:48 AM, Vignesh R wrote:
>
>
> On Wednesday 21 September 2016 09:41 PM, Mugunthan V N wrote:
>> This patch adds the required pieces to ti_am335x_adc driver for
>> DMA support
>>
>> Signed-off-by: Mugunthan V N
>> ---
>>
On Thursday 22 September 2016 12:50 PM, Peter Ujfalusi wrote:
> On 09/21/16 19:11, Mugunthan V N wrote:
>> This patch adds the required pieces to ti_am335x_adc driver for
>> DMA support
>>
>> Signed-off-by: Mugunthan V N
>> ---
>> dri
store the physical address of the device in its priv to use it
for DMA addressing in the client drivers.
Signed-off-by: Mugunthan V N
---
drivers/mfd/ti_am335x_tscadc.c | 1 +
include/linux/mfd/ti_am335x_tscadc.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/mfd
]
[1] - http://pastebin.ubuntu.com/23211490/
[2] - http://pastebin.ubuntu.com/23211492/
[3] - http://pastebin.ubuntu.com/23211494/
[4] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git iio-dma
Mugunthan V N (4):
mfd: ti_am335x_tscadc: store physical address
drivers: iio: ti_am335x_adc
Add DMA properties for tscadc
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am33xx.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 98748c6..6d607b8 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot
This patch adds the required pieces to ti_am335x_adc driver for
DMA support
Signed-off-by: Mugunthan V N
---
drivers/iio/adc/ti_am335x_adc.c | 160 ++-
include/linux/mfd/ti_am335x_tscadc.h | 7 ++
2 files changed, 164 insertions(+), 3 deletions(-)
diff
Add DMA properties for tscadc
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am4372.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 0fadae5..6094d17 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot
Jonathan
On Monday 22 August 2016 12:35 AM, Jonathan Cameron wrote:
> On 11/08/16 07:01, Mugunthan V N wrote:
>> > Current make doesn't have support to pass kernel built directory
>> > to find events.h kernel header file, so adding support for
>> >
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
's with single-queue default mode.
>
> The statistic for every channel can be read with:
> $ ethtool -S ethX
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
another, let every channel to have its
> own piece of pool.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
roses only for internal use.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Tuesday 16 August 2016 04:55 AM, Ivan Khoronzhuk wrote:
> These ops allow to control number of channels driver is allowed to
> work with at cpdma level. The maximum number of channels is 8 for
> rx and 8 for tx. In dual_emac mode the h/w channels are shared
> between two interfaces and changing
is stopping while not all packets were handled
> with NAPIs.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
ctory
#include
^
compilation terminated.
: recipe for target 'iio_event_monitor.o' failed
make: *** [iio_event_monitor.o] Error 1
make: Leaving directory '/home/a0131834/workspace/git/mainline/linux/tools/iio'
Signed-off-by: Mugunthan V N
---
With this fix I am
On Wednesday 10 August 2016 04:52 AM, Ivan Khoronzhuk wrote:
> This patch simply create holder for common data and as a start moves
> pdev var to it.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Wednesday 10 August 2016 04:52 AM, Ivan Khoronzhuk wrote:
> These data are common for net devs in dual_emac mode. No need to hold
> it for every priv instance, so move them under cpsw_common.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
k
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Wednesday 10 August 2016 04:52 AM, Ivan Khoronzhuk wrote:
> No need to hold pdev link when only dev is needed.
> This allows to simplify a bunch of cpsw->pdev->dev now and farther.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Wednesday 10 August 2016 04:52 AM, Ivan Khoronzhuk wrote:
> The pointers on h/w registers are common for every cpsw_private
> instance, so no need to hold them for every ndev.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Wednesday 10 August 2016 04:52 AM, Ivan Khoronzhuk wrote:
> The napi structs are common for both net devices in dual_emac
> mode, In order to not hold duplicate links to them, move to
> cpsw_common.
>
> Signed-off-by: Ivan Khoronzhuk
> ---
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
mber of irqs to 2, as anyway, driver is using only 2,
> at least for now.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
by: Mugunthan V N
Regards
Mugunthan V N
ich belongs to DEV MMIO space. Kmemleak does not scan IO
> memory and so reports memory leaks.
>
> Hence, mark allocated sk buffers as false positive explicitly.
>
> Cc: Catalin Marinas
> Signed-off-by: Grygorii Strashko
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
DMA has been
> switched to use genalloc, and may get wrong values on SMP.
>
> Hence, remove used_desc from struct cpdma_desc_pool.
>
> Signed-off-by: Grygorii Strashko
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Saturday 06 August 2016 04:18 PM, Ivan Khoronzhuk wrote:
> No need to check const slave num in runtime for every packet,
> and ndev for slaves w/o ndev is anyway NULL. So remove redundant
> check.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Saturday 06 August 2016 04:18 PM, Ivan Khoronzhuk wrote:
> There is no need to hold link to clk, it's used only once
> while probe.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Saturday 06 August 2016 04:18 PM, Ivan Khoronzhuk wrote:
> There is no need in priv here.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
On Saturday 06 August 2016 04:18 PM, Ivan Khoronzhuk wrote:
> No need to check number of handled packets, when in most cases (> 99%)
> it's not 0. It can be 0 only in rare cases, even in this case
> it's not bad to print just 0.
>
> Signed-off-by: Ivan Khoronzhuk
On Saturday 06 August 2016 04:18 PM, Ivan Khoronzhuk wrote:
> As second net dev is created only in case of dual_emac mode, port
> number can be figured out in simpler way. Also no need to pass
> redundant ndev struct.
>
> Signed-off-by: Ivan Khoronzhuk
Reviewed-by: Muguntha
ure that all steps done in
> of_platform_populate() are reverted, including cleaning up of
> OF_POPULATED flag.
>
> Signed-off-by: Grygorii Strashko
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
ces are down.
>
> Hence, ensure that CPSW powered up by PM runtime before performing any
> deinitialization actions which require CPSW registers access. In case
> of PM runtime error just leave cpsw_remove() as we can't do anything
> anymore.
>
> Signed-off-by: Grygorii
rnet: ti: cpsw: use destroy ctlr to destroy channels") was merged.
>
> Signed-off-by: Grygorii Strashko
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
Rob,
On Friday 22 July 2016 02:44 AM, Rob Herring wrote:
> On Thu, Jul 21, 2016 at 11:52:36AM +0530, Sekhar Nori wrote:
>> Nishanth,
>>
>> On Wednesday 20 July 2016 09:03 PM, Nishanth Menon wrote:
>>> On 07/20/2016 09:56 AM, Mugunthan V N wrote:
>>>> Add
Add support for configurable impedance control for TI dp83867
phy via devicetree. More documentation in [1]
CPSW second ethernet is not working, fix it by enabling
impedance configuration on the phy.
Public Datasheet - http://www.ti.com/lit/ds/symlink/dp83867ir.pdf
Mugunthan V N (3):
net: phy
Add documention of ti,impedance-control which can be used to
correct MAC impedance mismatch using phy extended registers.
Signed-off-by: Mugunthan V N
---
Documentation/devicetree/bindings/net/ti,dp83867.txt | 7 +++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree
Add support for programmable MAC impedance configuration
Signed-off-by: Mugunthan V N
---
drivers/net/phy/dp83867.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 91177a4..ace3558 100644
--- a/drivers/net
Second ethernet of cpsw is not working, make it work by adding
impedance configuration.
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm-revc.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/dra72-evm-revc.dts
b/arch/arm/boot/dts/dra72-evm-revc.dts
index
ed
> - davinci_mdio DT updated with proper description of allowed compatible
> strings
> combinations
>
> Link on v1:
> https://lkml.org/lkml/2016/6/15/362
For the series.
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
>
> Grygorii Strashko (15):
> drivers: ne
loc_coherent()). Hence, switch to using genalloc and add
> desc_num property for each channel for limitation of max number of
> allowed descriptors for each CPDMA channel. This patch do not affect
> on net throuput.
>
> Tested-by: Ivan Khoronzhuk
> Signed-off-by: Grygorii Strashko
Ack
\
>> } while (0)
>>
>> +static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool)
>> +{
>> +if (!pool)
>> +return;
>> +
>> +WARN_ON(pool->used_desc);
>> +if (pool->cpumap) {
>> +dma_free_coherent(
loc_coherent()). Hence, switch to using genalloc and add
> desc_num property for each channel for limitation of max number of
> allowed descriptors for each CPDMA channel. This patch do not affect
> on net throuput.
>
> Cc: Ivan Khoronzhuk
> Signed-off-by: Grygorii Strashko
Ack
.
>
> Based on
> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
> master
>
> Since v2:
> - add declaration of buf_num in correct order
>
> Since v1:
> - separate device tree and driver patches
> - return number of rx buffers from cpdma driver
&g
On Tuesday 14 June 2016 06:08 PM, Ivan Khoronzhuk wrote:
>
>
> On 13.06.16 18:19, Andrew F. Davis wrote:
>> On 06/13/2016 03:22 AM, Mugunthan V N wrote:
>>> On Saturday 11 June 2016 04:34 AM, Schuyler Patton wrote:
>>>>
>>>>
&g
umber of rx descs
>> and throughput
>> split between channels
>
> With gigabit networks 64 or 128 rx descriptors is not going to enough to
> fix the
> DMA overrun problem. Usually we set this number to an arbitrarily large
> 2000
> descriptors in external DDR to demonstrate it is possible to not drop
> packets. All
> this does is move the problem higher up so that the drops occur in network
> stack if the ARM is overloaded. With the high speed networks I would like
> to propose that the descriptor pool or pools are moved to DDR by
> default. It would
> be nice to have some reconfigurability or set a pool size that reduces
> or eliminates
> the DMA issue that is seen in these types of applications.
>
> This test gets used a lot, which is to send very short UDP packets. If I
> have the math
> right, a 52 byte (64 byte with the inter-frame gap) UDP packet the
> default 64
> descriptors gets consumed in roughly 33uS. There are the switch fifos
> which will also
> allow some headroom, but a user was dropping packets at the switch when
> they
> were bursting 360 packets at the processor on a gigabit link
>
I too agree that rx-descs can be derived from the pool size and
descriptor size in driver itself. The current driver uses bd_ram_size to
set the pool size when the descriptors are placed in DDR which is wrong.
Here I propose an idea to solve Schuyler's concern to keep the
descriptors in DDR when a system need more rx descriptors for lossless
UDB performance.
The DT property rx-descs can be removed and add a new DT property
*pool_size* to add support for descriptors memory size in DDR and define
a pool size which the system needs for a network to have lossless UDP
transfers.
So based on no_bd_ram DT entry, the driver can decide whether it can use
internal BD-ram or DDR to initialize the cpdma driver.
Regards
Mugunthan V N
deprecated, as phy-handle should be
> used instead.
>
> Signed-off-by: David Rivshin
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
uot;net: davinci_emac: Add support for fixed-link PHY")
> Signed-off-by: Neil Armstrong
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
llowing [1]:
> - emac0 with phy_id and emac1 with fixed phy
> - emac0 with phy-handle and emac1 with fixed phy
> - emac0 with fixed phy and emac1 with fixed phy
>
>
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
as the reviewer.
>
> Cc: "David S. Miller"
> Cc: Tony Lindgren
> Cc: Mugunthan V N
> Cc: Richard Cochran
> Signed-off-by: Grygorii Strashko
Acked-by: Mugunthan V N
Regards
Mugunthan V N
changed, 21 insertions(+), 31 deletions(-)
>
Reviewed-by: Mugunthan V N
Regards
Mugunthan V N
From: Sourav Poddar
Add clock node for qspi controller driver on am437x.
Cc: Keerthy
Cc: Tero Kristo
Signed-off-by: Sourav Poddar
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/am4372.dtsi| 2 ++
arch/arm/boot/dts/am43xx-clocks.dtsi | 8
2 files changed, 10 insertions
From: Vignesh R
On DRA72 EVM, cpsw slave1 is muxed with VIN2A, hence switch to cpsw
slave0 for ethernet. Add gpio hog entry to pcf_gpio_21 in order to
select cpsw slave0.
Signed-off-by: Vignesh R
Signed-off-by: Mugunthan V N
---
arch/arm/boot/dts/dra72-evm.dts | 10 --
1 file changed
arm/boot/dts/am4372.dtsi| 7 +--
> arch/arm/boot/dts/am43xx-clocks.dtsi | 9 +
> drivers/clk/ti/clk-43xx.c| 1 +
> 3 files changed, 15 insertions(+), 2 deletions(-)
>
Tested-by: Mugunthan V N
Regards
Mugunthan V N
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-off-by: Murali Karicheri
> ---
Acked-by: Mugunthan V N
Regards
Mugunthan V N
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