So, after a few rounds of internal review, I think we can go "public" and finally post this driver to the watchdog mailing-list, too. Of course, the dts and defconfig changes should go via Simon's tree once the driver is accepted. To use this driver, you need a recent firmware/uboot which initializes the WDTRSTCR register which can only be changed in secure mode. 'md 0xe6160054 4' should give you 0x8002 or something else with bit 15 set and bit 0 cleared. Also, you need the clock enablement patches which just have been posted in their newest version to the renesas-soc mailing list and are also in close-to-be-applied state. A complete branch to test can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/v8-wdt Please review, test, comment... Thanks, Wolfram Wolfram Sang (4): watchdog: renesas-wdt: add driver arm64: dts: r8a7795: Add RWDT node arm64: dts: salvator-x: Enable watchdog timer arm64: defconfig: enable Renesas Watchdog Timer .../devicetree/bindings/watchdog/renesas-wdt.txt | 25 +++ arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 5 + arch/arm64/boot/dts/renesas/r8a7795.dtsi | 8 + arch/arm64/configs/defconfig | 2 + drivers/watchdog/Kconfig | 8 + drivers/watchdog/Makefile | 1 + drivers/watchdog/renesas_wdt.c | 212 +++++++++++++++++++++ 7 files changed, 261 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/renesas-wdt.txt create mode 100644 drivers/watchdog/renesas_wdt.c -- 2.7.0
