Hello, This mini-series adds initial support for the Realtek RTD1295 SoC and the Zidoo X9S TV box. With these patches CPU0 can be booted with earlycon. PSCI doesn't work despite present in the vendor device tree; as enable-method it instead used a custom "rtk-spin-table" that I sadly have no source code of. The UARTs use a custom interrupt controller that I again lack source code of; with interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH> it can boot into an initrd. The boot process is slightly twisted: The files need to be loaded from a 32-bit U-Boot, then boot into 64-bit U-Boot where the kernel can be booted. Similar to my previous Amlogic S905 work, the TEXT_OFFSET poses a problem, so a uImage needs to be used (or the kernel patched) for load address 0x00280000. I haven't succeeded loading an initrd via bootm/booti; but as quick workaround initrd=$rootfs_loadaddr,0x$filesize can manually be specified in $bootargs. Cf. https://en.opensuse.org/HCL:Zidoo_X9S KVM appears to initialize okay, but was not yet tested with QEMU. [ 0.256947] kvm [1]: 8-bit VMID [ 0.256986] kvm [1]: IDMAP page: 73b000 [ 0.257025] kvm [1]: HYP VA range: 800000000000:ffffffffffff [ 0.257458] kvm [1]: Hyp mode initialized successfully [ 0.257529] kvm [1]: virtual timer IRQ3 More experimental patches at: https://github.com/afaerber/linux/commits/rtd1295-next Have a lot of fun! Cheers, Andreas Cc: service@xxxxxxxx Cc: devicetree@xxxxxxxxxxxxxxx Andreas Färber (4): Documentation: devicetree: Add vendor prefix for Zidoo Documentation: devicetree: arm: Add Realtek RTD1295 bindings ARM64: Prepare Realtek RTD1295 ARM64: dts: Prepare Realtek RTD1295 and Zidoo X9S Documentation/devicetree/bindings/arm/realtek.txt | 15 ++ .../devicetree/bindings/vendor-prefixes.txt | 1 + arch/arm64/Kconfig.platforms | 6 + arch/arm64/boot/dts/Makefile | 1 + arch/arm64/boot/dts/realtek/Makefile | 5 + arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts | 79 ++++++++++ arch/arm64/boot/dts/realtek/rtd1295.dtsi | 162 +++++++++++++++++++++ 7 files changed, 269 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/realtek.txt create mode 100644 arch/arm64/boot/dts/realtek/Makefile create mode 100644 arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts create mode 100644 arch/arm64/boot/dts/realtek/rtd1295.dtsi -- 2.10.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
