linux-dev/arch/powerpc/boot/dts, branch master

powerpc: Include e500v1_power_isa.dtsi for remaining e500v1 platforms

2022-09-28T09:22:14Z

There are still some board device tree files without Power ISA properties which have Freescale e500v1 cores, namely those which are based on Freescale mpc8540, mpc8541, mpc8555 and mpc8560 processors. So include newly introduced e500v1_power_isa.dtsi file in devices tree files with those processors. Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220902212103.22534-2-pali@kernel.org

powerpc: Fix SPE Power ISA properties for e500v1 platforms

2022-09-28T09:22:13Z

Commit 2eb28006431c ("powerpc/e500v2: Add Power ISA properties to comply with ePAPR 1.1") introduced new include file e500v2_power_isa.dtsi and should have used it for all e500v2 platforms. But apparently it was used also for e500v1 platforms mpc8540, mpc8541, mpc8555 and mpc8560. e500v1 cores compared to e500v2 do not support double precision floating point SPE instructions. Hence power-isa-sp.fd should not be set on e500v1 platforms, which is in e500v2_power_isa.dtsi include file. Fix this issue by introducing a new e500v1_power_isa.dtsi include file and use it in all e500v1 device tree files. Fixes: 2eb28006431c ("powerpc/e500v2: Add Power ISA properties to comply with ePAPR 1.1") Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220902212103.22534-1-pali@kernel.org

powerpc: dts: turris1x.dts: Fix labels in DSA cpu port nodes

2022-09-26T10:58:19Z

DSA cpu port node has to be marked with "cpu" label. So fix it for both cpu port nodes. Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers") Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220827131538.14577-1-pali@kernel.org

powerpc: dts: turris1x.dts: Fix NOR partitions labels

2022-09-26T10:58:19Z

Partition partition@20000 contains generic kernel image and it does not have to be used only for rescue purposes. Partition partition@1c0000 contains bootable rescue system and partition partition@340000 contains factory image/data for restoring to NAND. So change partition labels to better fit their purpose by removing possible misleading substring "rootfs" from these labels. Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers") Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220830225500.8856-1-pali@kernel.org

powerpc/82xx: remove spidev node from mgcoge

2022-08-26T01:02:21Z

Commit 956b200a846e ("spi: spidev: Warn loudly if instantiated from DT as "spidev"") states that there should not be spidev nodes in DTs. Remove this non-HW description. There won't be a regression because it won't bind since 2015 anyhow. Fixes: 5d1d67e361ea ("powerpc/82xx: add SPI support for mgcoge") Signed-off-by: Wolfram Sang Reviewed-by: Krzysztof Kozlowski Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220824082130.21934-3-wsa+renesas@sang-engineering.com

powerpc/85xx: P2020: Add law_trgt_if property to PCIe DT nodes

2022-07-28T06:22:14Z

DT law_trgt_if property defines Local Access Window Target Interface. Local Access Window Target Interface is used for identifying individual peripheral and mapping its memory to CPU. Interface id is defined by hardware itself. U-Boot uses law_trgt_if DT property in PCIe nodes for configuring memory mapping of individual PCIe controllers. Linux kernel fsl_pci.c driver currently does not touch Local Access Window and expects that U-Boot configures it properly. Add law_trgt_if property to PCIe DT nodes for P2020. This allows usage of kernel P2020 PCIe DT nodes in U-Boot. And therefore allows to share P2020 DTS files between Linux kernel and U-Boot. Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220504180822.29782-1-pali@kernel.org

powerpc: dts: turris1x.dts: Add CPLD reboot node

2022-07-27T11:36:03Z

CPLD firmware can reset board by writing value 0x01 at CPLD memory offset 0x0d. Define syscon-reboot node for this reset support. Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers") Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220713134429.18748-1-pali@kernel.org

powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers

2022-06-29T09:46:24Z

CZ.NIC Turris 1.0 and 1.1 are open source routers, they have dual-core PowerPC Freescale P2020 CPU and are based on Freescale P2020RDB-PC-A board. Hardware design is fully open source, all firmware and hardware design files are available at Turris project website: https://docs.turris.cz/hw/turris-1x/turris-1x/ https://project.turris.cz/en/hardware.html Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220624085550.20570-1-pali@kernel.org

powerpc/microwatt: Add mmu bits to device tree

2022-05-22T05:59:54Z

In commit 5402e239d09f ("powerpc/64s: Get LPID bit width from device tree") the kernel tried to determine the pid and lpid bits from the device tree. If they are not found, there is a fallback, but Microwatt wasn't covered as it has the unusual configuration of being both !HV and bare metal. Set the values in the device tree to avoid having to add a special case. The lpid value is the only one required, but add both for completeness. Fixes: 5402e239d09f ("powerpc/64s: Get LPID bit width from device tree") Signed-off-by: Joel Stanley Acked-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220519125706.593532-1-joel@jms.id.au

powerpc/85xx/p2020: Add fsl,mpc8548-pmc node

2022-05-22T05:58:28Z

P2020 also contains Power Management Controller and their registers at offset 0xe0070 compatible with mpc8548. So add PMC node into DTS include file fsl/p2020si-post.dtsi Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220506203621.26314-1-pali@kernel.org