| Message ID | 1550454997-4398-1-git-send-email-Anson.Huang@nxp.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add i.MX8QXP system controller watchdog support | expand |
On 2/17/19 6:01 PM, Anson Huang wrote: > i.MX8QXP is an ARMv8 Cortex-A35 SoC with a Cortex-M4 system controller inside, > the system controller manages overall power, clock, secure RTC and watchdog > etc., so Linux kernel running on A35 needs to communicate with system > controller for watchdog operation, this system controller watchdog will > call SMC to trap to EL3 secure world ARM-Trusted-Firmware and then it will > request system controller to do the watchdog operation via IPC. > > And you expect I'll spend the time comparing this version of the patch series against version 1 and figure out myself what exactly changed ? Guenter Below are the patch dependency: > > The dt-binding and imx8qxp.dtsi patch are based on my thermal patch series as below: > https://patchwork.kernel.org/patch/10800699/ > > Anson Huang (4): > dt-bindings: fsl: scu: add watchdog binding > watchdog: imx_sc: Add i.MX system controller watchdog support > arm64: defconfig: add support for i.MX system controller watchdog > arm64: dts: freescale: imx8qxp: add watchdog support > > .../devicetree/bindings/arm/freescale/fsl,scu.txt | 10 + > arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 4 + > arch/arm64/configs/defconfig | 1 + > drivers/watchdog/Kconfig | 13 ++ > drivers/watchdog/Makefile | 1 + > drivers/watchdog/imx_sc_wdt.c | 210 +++++++++++++++++++++ > 6 files changed, 239 insertions(+) > create mode 100644 drivers/watchdog/imx_sc_wdt.c >
Hi, Guenter Best Regards! Anson Huang > -----Original Message----- > From: Guenter Roeck [mailto:groeck7@gmail.com] On Behalf Of Guenter > Roeck > Sent: 2019年2月18日 13:16 > To: Anson Huang <anson.huang@nxp.com>; robh+dt@kernel.org; > mark.rutland@arm.com; shawnguo@kernel.org; s.hauer@pengutronix.de; > kernel@pengutronix.de; festevam@gmail.com; catalin.marinas@arm.com; > will.deacon@arm.com; wim@linux-watchdog.org; Aisheng Dong > <aisheng.dong@nxp.com>; ulf.hansson@linaro.org; Daniel Baluta > <daniel.baluta@nxp.com>; Andy Gross <andy.gross@linaro.org>; > horms+renesas@verge.net.au; heiko@sntech.de; arnd@arndb.de; > bjorn.andersson@linaro.org; jagan@amarulasolutions.com; > enric.balletbo@collabora.com; marc.w.gonzalez@free.fr; olof@lixom.net; > devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm- > kernel@lists.infradead.org; linux-watchdog@vger.kernel.org > Cc: dl-linux-imx <linux-imx@nxp.com> > Subject: Re: [PATCH V2 0/4] Add i.MX8QXP system controller watchdog > support > > On 2/17/19 6:01 PM, Anson Huang wrote: > > i.MX8QXP is an ARMv8 Cortex-A35 SoC with a Cortex-M4 system controller > > inside, the system controller manages overall power, clock, secure RTC > > and watchdog etc., so Linux kernel running on A35 needs to communicate > > with system controller for watchdog operation, this system controller > > watchdog will call SMC to trap to EL3 secure world > > ARM-Trusted-Firmware and then it will request system controller to do the > watchdog operation via IPC. > > > > > And you expect I'll spend the time comparing this version of the patch series > against version 1 and figure out myself what exactly changed ? > > Guenter Sorry, I planned to reply your review mail but forgot, I addressed all your comments in V2 patch set, I will add the change log in V2 watchdog driver patch and resend. Anson. > > Below are the patch dependency: > > > > The dt-binding and imx8qxp.dtsi patch are based on my thermal patch > series as below: > > > https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpat > > > chwork.kernel.org%2Fpatch%2F10800699%2F&data=02%7C01%7Canso > n.huang > > %40nxp.com%7C630e6c5d7ed04a912f7708d695603cb2%7C686ea1d3bc2b4 > c6fa92cd9 > > > 9c5c301635%7C0%7C0%7C636860637903984268&sdata=a25qJs%2Fb4e > 2a9Ey77U > > gTNKAGCQ8IWRcUKb4G0lK%2Bkjc%3D&reserved=0 > > > > Anson Huang (4): > > dt-bindings: fsl: scu: add watchdog binding > > watchdog: imx_sc: Add i.MX system controller watchdog support > > arm64: defconfig: add support for i.MX system controller watchdog > > arm64: dts: freescale: imx8qxp: add watchdog support > > > > .../devicetree/bindings/arm/freescale/fsl,scu.txt | 10 + > > arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 4 + > > arch/arm64/configs/defconfig | 1 + > > drivers/watchdog/Kconfig | 13 ++ > > drivers/watchdog/Makefile | 1 + > > drivers/watchdog/imx_sc_wdt.c | 210 > +++++++++++++++++++++ > > 6 files changed, 239 insertions(+) > > create mode 100644 drivers/watchdog/imx_sc_wdt.c > >