| Message ID | 20190117014936.48117-6-yangbo.lu@nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | External trigger stamp fifo support for ptp_qoriq | expand |
On Thu, Jan 17, 2019 at 09:49:36AM +0800, Yangbo Lu wrote: > This patch is to add Kconfig options to support fiper > pulse loopback mode. This is very useful for validating > hardware and driver without external hardware. To me this feature makes more sense as a debugf-fs option. Thanks, Richard
Hi, > -----Original Message----- > From: Richard Cochran <richardcochran@gmail.com> > Sent: Friday, January 18, 2019 9:44 AM > To: Y.b. Lu <yangbo.lu@nxp.com> > Cc: netdev@vger.kernel.org; devicetree@vger.kernel.org; > linux-arm-kernel@lists.infradead.org; David S . Miller <davem@davemloft.net>; > Rob Herring <robh+dt@kernel.org>; Shawn Guo <shawnguo@kernel.org> > Subject: Re: [v2, 5/5] ptp_qoriq: add fiper pulse loopback support > > On Thu, Jan 17, 2019 at 09:49:36AM +0800, Yangbo Lu wrote: > > This patch is to add Kconfig options to support fiper pulse loopback > > mode. This is very useful for validating hardware and driver without > > external hardware. > > To me this feature makes more sense as a debugf-fs option. [Y.b. Lu] Let me try debug-fs and update the patch-set. Thanks for your suggestion. > > Thanks, > Richard
diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index d137c48..561d797 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -55,6 +55,24 @@ config PTP_1588_CLOCK_QORIQ To compile this driver as a module, choose M here: the module will be called ptp_qoriq. +config PTP_1588_CLOCK_QORIQ_FIPER1_LOOPBACK + bool "Fiper1 pulse loopback" + depends on PTP_1588_CLOCK_QORIQ + default n + help + Enable fiper1 pulse loopback mode. If choose y, fiper1 pulse is + looped back into trigger1 input. In default, trigger1 input is + based upon normal external trigger input. + +config PTP_1588_CLOCK_QORIQ_FIPER2_LOOPBACK + bool "Fiper2 pulse loopback" + depends on PTP_1588_CLOCK_QORIQ + default n + help + Enable fiper2 pulse loopback mode. If choose y, fiper2 pulse is + looped back into trigger2 input. In default, trigger2 input is + based upon normal external trigger input. + config PTP_1588_CLOCK_IXP46X tristate "Intel IXP46x as PTP clock" depends on IXP4XX_ETH diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c index a2e7702..5294475 100644 --- a/drivers/ptp/ptp_qoriq.c +++ b/drivers/ptp/ptp_qoriq.c @@ -551,7 +551,12 @@ static int qoriq_ptp_probe(struct platform_device *dev) tmr_ctrl = (qoriq_ptp->tclk_period & TCLK_PERIOD_MASK) << TCLK_PERIOD_SHIFT | (qoriq_ptp->cksel & CKSEL_MASK) << CKSEL_SHIFT; - +#ifdef CONFIG_PTP_1588_CLOCK_QORIQ_FIPER1_LOOPBACK + tmr_ctrl |= PP1L; +#endif +#ifdef CONFIG_PTP_1588_CLOCK_QORIQ_FIPER2_LOOPBACK + tmr_ctrl |= PP2L; +#endif spin_lock_irqsave(&qoriq_ptp->lock, flags); regs = &qoriq_ptp->regs;
This patch is to add Kconfig options to support fiper pulse loopback mode. This is very useful for validating hardware and driver without external hardware. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> --- Changes for v2: - None. --- drivers/ptp/Kconfig | 18 ++++++++++++++++++ drivers/ptp/ptp_qoriq.c | 7 ++++++- 2 files changed, 24 insertions(+), 1 deletions(-)