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Message-ID: <528AF70A.7080603@st.com> Date: Tue, 19 Nov 2013 06:28:42 +0100 From: Giuseppe CAVALLARO <peppe.cavallaro@...com> To: <srinivas.kandagatla@...com> Cc: <linux-arm-kernel@...ts.infradead.org>, <netdev@...r.kernel.org>, Rob Herring <rob.herring@...xeda.com>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Stephen Warren <swarren@...dotorg.org>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Rob Landley <rob@...dley.net>, Russell King <linux@....linux.org.uk>, Stuart Menefy <stuart.menefy@...com>, Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Len Brown <len.brown@...el.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Grant Likely <grant.likely@...aro.org>, <devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>, <stephen.gallimore@...com>, <linux-kernel@...r.kernel.org>, <kernel@...inux.com>, <linux-pm@...r.kernel.org> Subject: Re: [PATCH RFC 00/10] ARM: STi: Add dwmac glue and reset controller On 11/12/2013 2:51 PM, srinivas.kandagatla@...com wrote: > From: Srinivas Kandagatla <srinivas.kandagatla@...com> > > Hi All, > > This patch series adds Ethernet support to STi series SOCs STiH415 and STiH416. > STi SOC series integrates dwmac IP from synopsis, however there is a hardware > glue on top of this standard IP, this glue needs to configured before the > actual dwmac can be used. > To add this a new driver dwmac-sti is introduced whose responsibility is to > configure dwmac glue and before dwmac driver, this is achieved by making dwmac > device node as child to ethernet glue node. Inspired by usb/dwc3. > Also the glue needs to come out of softreset which is why we have added a > softreset controller to driver which looked perfectly neat, rather then > driving the softreset bit from the glue driver. > > Also as part of power management in glue driver, I found that there was no > function to determine if the child device is a wakeup source or not. > I have added a new api device_child_may_wakeup API which could be useful for > drivers like this. "PM / wakeup : Introduce device_child_may_wakeup" patch has > that new API and "net: stmmac:sti: Add STi SOC glue driver." glue driver uses > this new API. > > The reason for combining all these patches in a same series is because of > dependencies. > > This patch series is tested on B2000 and B2020 boards with STiH415, STiH416 > SOC on ethernet 100/1000 Links. > > Comments? Hello Srini ll these patches are ok for me and, as you know, I have already started using them while porting other SoC. Glue logic is mandatory now! Thanks peppe > > Thanks, > srini > > Srinivas Kandagatla (6): > drivers: reset: stih415: add softreset controller > drivers: reset: stih416: add softreset controller > PM / wakeup : Introduce device_child_may_wakeup > net: stmmac:sti: Add STi SOC glue driver. > ARM: STi: Add STiH415 ethernet support. > ARM: STi: Add STiH416 ethernet support. > > Stephen Gallimore (4): > drivers: reset: STi SoC system configuration reset controller support > drivers: reset: Reset controller driver for STiH415 > drivers: reset: Reset controller driver for STiH416 > ARM: STi: Add reset controller support to mach-sti Kconfig > > .../devicetree/bindings/net/sti-dwmac.txt | 45 +++ > .../devicetree/bindings/reset/st,sti-powerdown.txt | 46 +++ > .../devicetree/bindings/reset/st,sti-softreset.txt | 45 +++ > arch/arm/boot/dts/stih415-clock.dtsi | 14 + > arch/arm/boot/dts/stih415-pinctrl.dtsi | 82 ++++++ > arch/arm/boot/dts/stih415.dtsi | 67 +++++ > arch/arm/boot/dts/stih416-clock.dtsi | 14 + > arch/arm/boot/dts/stih416-pinctrl.dtsi | 106 +++++++ > arch/arm/boot/dts/stih416.dtsi | 69 +++++ > arch/arm/boot/dts/stih41x-b2000.dtsi | 32 +++ > arch/arm/boot/dts/stih41x-b2020.dtsi | 33 +++ > arch/arm/mach-sti/Kconfig | 3 + > drivers/base/power/wakeup.c | 23 ++ > drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + > drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 294 ++++++++++++++++++++ > drivers/reset/Kconfig | 2 + > drivers/reset/Makefile | 3 + > drivers/reset/sti/Kconfig | 15 + > drivers/reset/sti/Makefile | 4 + > drivers/reset/sti/reset-stih415.c | 99 +++++++ > drivers/reset/sti/reset-stih416.c | 101 +++++++ > drivers/reset/sti/reset-syscfg.c | 186 ++++++++++++ > drivers/reset/sti/reset-syscfg.h | 69 +++++ > .../dt-bindings/reset-controller/stih415-resets.h | 23 ++ > .../dt-bindings/reset-controller/stih416-resets.h | 25 ++ > include/linux/pm_wakeup.h | 1 + > 26 files changed, 1402 insertions(+), 0 deletions(-) > create mode 100644 Documentation/devicetree/bindings/net/sti-dwmac.txt > create mode 100644 Documentation/devicetree/bindings/reset/st,sti-powerdown.txt > create mode 100644 Documentation/devicetree/bindings/reset/st,sti-softreset.txt > create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c > create mode 100644 drivers/reset/sti/Kconfig > create mode 100644 drivers/reset/sti/Makefile > create mode 100644 drivers/reset/sti/reset-stih415.c > create mode 100644 drivers/reset/sti/reset-stih416.c > create mode 100644 drivers/reset/sti/reset-syscfg.c > create mode 100644 drivers/reset/sti/reset-syscfg.h > create mode 100644 include/dt-bindings/reset-controller/stih415-resets.h > create mode 100644 include/dt-bindings/reset-controller/stih416-resets.h > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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