| Message ID | 20250331122657.3390355-1-thierry.bultel.yh@bp.renesas.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add initial support for Renesas RZ/T2H SoC | expand |
On Mon, 31 Mar 2025 14:26:41 +0200, Thierry Bultel wrote: > This patchset brings basic support for Renesas RZ/T2H SoC and > its evaluation board. The 4 CPUs are enabled, only the serial > console is available and the board must boot on a ramdisk. > earlycon is supported, though. > > The RZ/T2H serial controller (SCI) is quite different from the > other RZ SoCs, one of the big differences (but not the only) being > the 32 bits registers. In order to not modify the existing sh-sci > driver too much, a new set of 'ops' function pointer is introduced, > allowing to code the specifics of RZ/T2H in a separate file. > Termios setting is not supported yet, the default 115200 baudrate > being kept by default. > > Clock support for RZ/T2H is added to the existing renesas-cpg-mssr > driver, with some little modifications so that more parameters are > passed to the device-specific registration callback. > At this stage, the assumption is made that most of the initialization > is done earlier by the bootloader. Module clock enable/disable is > not supported, because quite hard to test when the only available > peripheral is the serial console, and will come in a future patchset. > > This patch series applies to linux-next > > > * [PATCH 1/13] > - Rebased on top of next-20250331 > * [PATCH 2/13] > - Set clock minItem constraint > - Moved additionalProperties after 'allOf' section > * [PATCH 10/13] > - Rename SERIAL_RZ_SCI_T2 to CONFIG_SERIAL_RSCI > - Rename rz-sci-t2.{c,h} to rsci.{c,h} > - Rename port type to PORT_RSCI > - Rename sci_r9a09g077_data to of_sci_r9a09g077_data for consistency > * [PATCH 12/13] > - Rebased on top of next-20250331 > * [PATCH 13/13] > - Renamed CONFIG_SERIAL_RZ_SCI_T2 to CONFIG_SERIAL_RSCI > > Changes v4->v5 > * [PATCH 2/13]: > - Set reg minItems and maxItems defaults at top level > * [PATCH 8/13]: > - sci_shutdown is no longer static (systemd needs it) > * [PATCH 10/13]: > - Rename SERIAL_RZ_SCI to SERIAL_RZ_SCI_T2 > - Rename rzsci.{c,h} to rz-sci-t2.{c,h} > - Rename port type to PORT_RZ_SCI_T2 > - Set sci_shutdown ops pointer (needed by systemd for having a console) > * [PATCH 13/13]: > - Renamed CONFIG_SERIAL_RZ_SCI to CONFIG_SERIAL_RZ_SCI_T2 > > Changes v3->v4 > * Remove all unwanted 'Reviewed by:' tags coming from internal patchwork. > * [PATCH 2/13]: > - Handle maxItems and clocks names properly in schema. > * [PATCH 3/13]: > - Add more details in commit description about why renesas,sci > does not apply. > - Remove uart-has-rtscts for !rzsci. > * [PATCH 4/13] & [PATCH 13/13] > - Sets ARCH_R9A09G077 to Y by default. > * [PATCH 6/13] > - Add missing #include <bitfield.h> (reported by bot) > - Add missing __iomem address space in cpg_rzt2h_addr_from_offset and > return type (reported by bot) > - fixed clocks: inverted 'mult' and 'div' parameters when using > the DEF_FIXED macro > * [PATCH 8/13] > - Add missing #include <bitfield.h> > - Remove sci_poll_get_char sci_poll_put_char from sh-sci-common.h (both > function are not used by rzsci yet). > - Add missing #ifdef around .poll_put_char pointer initialization. > * [PATCH 9/13] > - Fix the bot compilation error on superh in sci_probe_earlyprink() > * [PATCH 10/13] > - Add missing #include <bitfield.h> > - Fix christmas tree code style in rzsci_transmit_chars. > * [PATCH 13/13] > - Change the commit title. > - Remove CONFIG_ARCH_R9A09G077=y. > > Changes v2->v3 > * Amend [PATCH v2 05/13] with Signed-off-by, added comment about > moved parameters of priv data. > * bindings: > - sci: own section for RZ/T2H sci, resets no required at this stage > - sci: 'uart-has-rtscts' is conditional to RZ/T2H. > - renesas: 'renesas,r9a09g077' is the fallback. > - cpg: renamed 'r9a09g077-cpg-mssr.h to 'renesas,r9a09g077-cpg-mssr.h'. > - cpg: update renesas,cpg-mssr.yaml (added loco clock, maxItems for registers is 2), > update commit description > * rz/sci: > - rebase the patchset on v6.14-rc3. > - removed unused register bits definitions in rzsci.c > - rzsci: replace the busy loop in rzsci_poll_put_char by > readl_relaxed_poll_timeout_atomic > - change 'struct sci_suspend_regs' to opaque pointer in sci_port, > kzalloc it with size returned from the added 'suspend_regs_size()' > to specific ops. > - renamed 'sh-sci_common.h' to 'sh-sci-common.h' > - add Geert's fixes for SH crash > - do not use SCI_OF_DATA macro to avoid code duplication by compiler > - revert some global functions to static > * clk: > - fixed Kconfig for selecting CLK_RENESAS_CPG_MSSR. > - code style. > - use macros for MSTPCR block selection. > - fixed erroneous offset in mstpcr_for_rzt2h array. > - fixed the forgotten rcar-gen2-cpg.c in [PATCH v2 05/13] > * defconfig; > - added commit description and SoB > - update cover letter about SoC options > > Changes v1->v2 > * CPG based on renesas-cpg-mssr (no more new CPG driver), updated cover letter > for that. > * bindings: > - passed dt_binding_check and added missing compatible strings, > - document SoC + evaluation board in a single commit > - rzsci added to sci documentation > - fixed dependencies > - renamed the evaluation board to r9a9g077m44-rzt2h-evk > - removed clock module numbers & resets from binding header > - compatibles: renamed r9a09g077-rzt2h-evk to rzt2h-evk > * rz/sci: > - added Renesas copyright > - fixed rzsci_receive_chars following Geert's advice, and comment > that 9-bits data is not supported > - fixed the regression (ops init) on non-DT legacy boards, sci_probe_regmap > called moved in the non-DT case. > - moved struct sci_of_data introduction in the appropriate commit > * dts > - applied conventions (nodes alphabetical order & node names) > - added missing compatibles to r9a09g077m44.dtsi and r9a09g077m44-rzt2h-evk.dts > > > > Thierry Bultel (13): > dt-bindings: soc: Add Renesas RZ/T2H (R9A09G077) SoC > dt-bindings: clock: Add cpg for the Renesas RZ/T2H SoC > dt-bindings: serial: Add compatible for Renesas RZ/T2H SoC in sci > soc: renesas: Add RZ/T2H (R9A09G077) config option > clk: renesas: Pass sub struct of cpg_mssr_priv to cpg_clk_register > clk: renesas: Add support for R9A09G077 SoC > serial: sh-sci: Fix a comment about SCIFA > serial: sh-sci: Introduced function pointers > serial: sh-sci: Introduced sci_of_data > serial: sh-sci: Add support for RZ/T2H SCI > arm64: dts: renesas: Add initial support for renesas RZ/T2H SoC > arm64: dts: renesas: Add initial support for renesas RZ/T2H eval board > arm64: defconfig: Enable Renesas RZ/T2H serial SCI > > .../bindings/clock/renesas,cpg-mssr.yaml | 57 +- > .../bindings/serial/renesas,sci.yaml | 63 +- > .../bindings/soc/renesas/renesas.yaml | 10 + > arch/arm/boot/dts/renesas/Makefile | 1 + > .../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 35 + > arch/arm64/boot/dts/renesas/r9a09g077.dtsi | 129 ++++ > arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi | 13 + > arch/arm64/configs/defconfig | 1 + > drivers/clk/renesas/Kconfig | 5 + > drivers/clk/renesas/Makefile | 1 + > drivers/clk/renesas/r7s9210-cpg-mssr.c | 7 +- > drivers/clk/renesas/r8a77970-cpg-mssr.c | 11 +- > drivers/clk/renesas/r9a09g077-cpg-mssr.c | 238 +++++++ > drivers/clk/renesas/rcar-gen2-cpg.c | 5 +- > drivers/clk/renesas/rcar-gen2-cpg.h | 3 +- > drivers/clk/renesas/rcar-gen3-cpg.c | 6 +- > drivers/clk/renesas/rcar-gen3-cpg.h | 6 +- > drivers/clk/renesas/rcar-gen4-cpg.c | 8 +- > drivers/clk/renesas/rcar-gen4-cpg.h | 3 +- > drivers/clk/renesas/renesas-cpg-mssr.c | 153 ++-- > drivers/clk/renesas/renesas-cpg-mssr.h | 43 +- > drivers/soc/renesas/Kconfig | 6 + > drivers/tty/serial/Kconfig | 7 + > drivers/tty/serial/Makefile | 1 + > drivers/tty/serial/rsci.c | 467 +++++++++++++ > drivers/tty/serial/rsci.h | 12 + > drivers/tty/serial/sh-sci-common.h | 167 +++++ > drivers/tty/serial/sh-sci.c | 651 ++++++++++-------- > drivers/tty/serial/sh-sci.h | 2 - > .../clock/renesas,r9a09g077-cpg-mssr.h | 49 ++ > include/linux/serial_sci.h | 3 +- > include/uapi/linux/serial_core.h | 3 + > 32 files changed, 1775 insertions(+), 391 deletions(-) > create mode 100644 arch/arm/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts > create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077.dtsi > create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi > create mode 100644 drivers/clk/renesas/r9a09g077-cpg-mssr.c > create mode 100644 drivers/tty/serial/rsci.c > create mode 100644 drivers/tty/serial/rsci.h > create mode 100644 drivers/tty/serial/sh-sci-common.h > create mode 100644 include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h > > -- > 2.43.0 > > > My bot found new DTB warnings on the .dts files added or changed in this series. Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings are fixed by another series. Ultimately, it is up to the platform maintainer whether these warnings are acceptable or not. No need to reply unless the platform maintainer has comments. If you already ran DT checks and didn't see these error(s), then make sure dt-schema is up to date: pip3 install dtschema --upgrade This patch series was applied (using b4) to base: Base: attempting to guess base-commit... Base: tags/next-20250328 (exact match) If this is not the correct base, please add 'base-commit' tag (or use b4 which does this automatically) New warnings running 'make CHECK_DTBS=y for arch/arm/boot/dts/renesas/' for 20250331122657.3390355-1-thierry.bultel.yh@bp.renesas.com: arch/arm/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts:10:10: fatal error: r9a09g077m44.dtsi: No such file or directory 10 | #include "r9a09g077m44.dtsi" | ^~~~~~~~~~~~~~~~~~~ compilation terminated. make[3]: *** [scripts/Makefile.dtbs:131: arch/arm/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dtb] Error 1 make[2]: *** [scripts/Makefile.build:461: arch/arm/boot/dts/renesas] Error 2 make[2]: Target 'arch/arm/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dtb' not remade because of errors. make[1]: *** [/home/rob/proj/linux-dt-testing/Makefile:1475: renesas/r9a09g077m44-rzt2h-evk.dtb] Error 2 make: *** [Makefile:248: __sub-make] Error 2 make: Target 'renesas/r7s72100-genmai.dtb' not remade because of errors. make: Target 'renesas/r8a7742-iwg21d-q7-dbcm-ca.dtb' not remade because of errors. make: Target 'renesas/r8a7742-iwg21d-q7.dtb' not remade because of errors. make: Target 'renesas/r9a09g077m44-rzt2h-evk.dtb' not remade because of errors. make: Target 'renesas/r7s9210-rza2mevb.dtb' not remade because of errors. make: Target 'renesas/r8a7745-iwg22d-sodimm.dtb' not remade because of errors. make: Target 'renesas/r8a7745-sk-rzg1e.dtb' not remade because of errors. make: Target 'renesas/r8a7794-silk.dtb' not remade because of errors. make: Target 'renesas/r8a7744-iwg20d-q7-dbcm-ca.dtb' not remade because of errors. make: Target 'renesas/r8a7790-lager.dtb' not remade because of errors. make: Target 'renesas/r8a7743-iwg20d-q7.dtb' not remade because of errors. make: Target 'renesas/r8a7791-koelsch.dtb' not remade because of errors. make: Target 'renesas/sh73a0-kzm9g.dtb' not remade because of errors. make: Target 'renesas/r8a7744-iwg20d-q7.dtb' not remade because of errors. make: Target 'renesas/r8a73a4-ape6evm.dtb' not remade because of errors. make: Target 'renesas/emev2-kzm9d.dtb' not remade because of errors. make: Target 'renesas/r9a06g032-rzn1d400-db.dtb' not remade because of errors. make: Target 'renesas/r8a7743-sk-rzg1m.dtb' not remade because of errors. make: Target 'renesas/r8a7791-porter.dtb' not remade because of errors. make: Target 'renesas/r7s72100-gr-peach.dtb' not remade because of errors. make: Target 'renesas/r8a7794-alt.dtb' not remade because of errors. make: Target 'renesas/r8a7778-bockw.dtb' not remade because of errors. make: Target 'renesas/r8a7740-armadillo800eva.dtb' not remade because of errors. make: Target 'renesas/r8a77470-iwg23s-sbc.dtb' not remade because of errors. make: Target 'renesas/r8a7745-iwg22d-sodimm-dbhd-ca.dtb' not remade because of errors. make: Target 'renesas/r7s72100-rskrza1.dtb' not remade because of errors. make: Target 'renesas/r8a7779-marzen.dtb' not remade because of errors. make: Target 'renesas/r8a7743-iwg20d-q7-dbcm-ca.dtb' not remade because of errors. make: Target 'renesas/r8a7792-blanche.dtb' not remade because of errors. make: Target 'renesas/r8a7792-wheat.dtb' not remade because of errors. make: Target 'renesas/r8a7790-stout.dtb' not remade because of errors. make: Target 'renesas/r8a7793-gose.dtb' not remade because of errors.
This patchset brings basic support for Renesas RZ/T2H SoC and its evaluation board. The 4 CPUs are enabled, only the serial console is available and the board must boot on a ramdisk. earlycon is supported, though. The RZ/T2H serial controller (SCI) is quite different from the other RZ SoCs, one of the big differences (but not the only) being the 32 bits registers. In order to not modify the existing sh-sci driver too much, a new set of 'ops' function pointer is introduced, allowing to code the specifics of RZ/T2H in a separate file. Termios setting is not supported yet, the default 115200 baudrate being kept by default. Clock support for RZ/T2H is added to the existing renesas-cpg-mssr driver, with some little modifications so that more parameters are passed to the device-specific registration callback. At this stage, the assumption is made that most of the initialization is done earlier by the bootloader. Module clock enable/disable is not supported, because quite hard to test when the only available peripheral is the serial console, and will come in a future patchset. This patch series applies to linux-next * [PATCH 1/13] - Rebased on top of next-20250331 * [PATCH 2/13] - Set clock minItem constraint - Moved additionalProperties after 'allOf' section * [PATCH 10/13] - Rename SERIAL_RZ_SCI_T2 to CONFIG_SERIAL_RSCI - Rename rz-sci-t2.{c,h} to rsci.{c,h} - Rename port type to PORT_RSCI - Rename sci_r9a09g077_data to of_sci_r9a09g077_data for consistency * [PATCH 12/13] - Rebased on top of next-20250331 * [PATCH 13/13] - Renamed CONFIG_SERIAL_RZ_SCI_T2 to CONFIG_SERIAL_RSCI Changes v4->v5 * [PATCH 2/13]: - Set reg minItems and maxItems defaults at top level * [PATCH 8/13]: - sci_shutdown is no longer static (systemd needs it) * [PATCH 10/13]: - Rename SERIAL_RZ_SCI to SERIAL_RZ_SCI_T2 - Rename rzsci.{c,h} to rz-sci-t2.{c,h} - Rename port type to PORT_RZ_SCI_T2 - Set sci_shutdown ops pointer (needed by systemd for having a console) * [PATCH 13/13]: - Renamed CONFIG_SERIAL_RZ_SCI to CONFIG_SERIAL_RZ_SCI_T2 Changes v3->v4 * Remove all unwanted 'Reviewed by:' tags coming from internal patchwork. * [PATCH 2/13]: - Handle maxItems and clocks names properly in schema. * [PATCH 3/13]: - Add more details in commit description about why renesas,sci does not apply. - Remove uart-has-rtscts for !rzsci. * [PATCH 4/13] & [PATCH 13/13] - Sets ARCH_R9A09G077 to Y by default. * [PATCH 6/13] - Add missing #include <bitfield.h> (reported by bot) - Add missing __iomem address space in cpg_rzt2h_addr_from_offset and return type (reported by bot) - fixed clocks: inverted 'mult' and 'div' parameters when using the DEF_FIXED macro * [PATCH 8/13] - Add missing #include <bitfield.h> - Remove sci_poll_get_char sci_poll_put_char from sh-sci-common.h (both function are not used by rzsci yet). - Add missing #ifdef around .poll_put_char pointer initialization. * [PATCH 9/13] - Fix the bot compilation error on superh in sci_probe_earlyprink() * [PATCH 10/13] - Add missing #include <bitfield.h> - Fix christmas tree code style in rzsci_transmit_chars. * [PATCH 13/13] - Change the commit title. - Remove CONFIG_ARCH_R9A09G077=y. Changes v2->v3 * Amend [PATCH v2 05/13] with Signed-off-by, added comment about moved parameters of priv data. * bindings: - sci: own section for RZ/T2H sci, resets no required at this stage - sci: 'uart-has-rtscts' is conditional to RZ/T2H. - renesas: 'renesas,r9a09g077' is the fallback. - cpg: renamed 'r9a09g077-cpg-mssr.h to 'renesas,r9a09g077-cpg-mssr.h'. - cpg: update renesas,cpg-mssr.yaml (added loco clock, maxItems for registers is 2), update commit description * rz/sci: - rebase the patchset on v6.14-rc3. - removed unused register bits definitions in rzsci.c - rzsci: replace the busy loop in rzsci_poll_put_char by readl_relaxed_poll_timeout_atomic - change 'struct sci_suspend_regs' to opaque pointer in sci_port, kzalloc it with size returned from the added 'suspend_regs_size()' to specific ops. - renamed 'sh-sci_common.h' to 'sh-sci-common.h' - add Geert's fixes for SH crash - do not use SCI_OF_DATA macro to avoid code duplication by compiler - revert some global functions to static * clk: - fixed Kconfig for selecting CLK_RENESAS_CPG_MSSR. - code style. - use macros for MSTPCR block selection. - fixed erroneous offset in mstpcr_for_rzt2h array. - fixed the forgotten rcar-gen2-cpg.c in [PATCH v2 05/13] * defconfig; - added commit description and SoB - update cover letter about SoC options Changes v1->v2 * CPG based on renesas-cpg-mssr (no more new CPG driver), updated cover letter for that. * bindings: - passed dt_binding_check and added missing compatible strings, - document SoC + evaluation board in a single commit - rzsci added to sci documentation - fixed dependencies - renamed the evaluation board to r9a9g077m44-rzt2h-evk - removed clock module numbers & resets from binding header - compatibles: renamed r9a09g077-rzt2h-evk to rzt2h-evk * rz/sci: - added Renesas copyright - fixed rzsci_receive_chars following Geert's advice, and comment that 9-bits data is not supported - fixed the regression (ops init) on non-DT legacy boards, sci_probe_regmap called moved in the non-DT case. - moved struct sci_of_data introduction in the appropriate commit * dts - applied conventions (nodes alphabetical order & node names) - added missing compatibles to r9a09g077m44.dtsi and r9a09g077m44-rzt2h-evk.dts Thierry Bultel (13): dt-bindings: soc: Add Renesas RZ/T2H (R9A09G077) SoC dt-bindings: clock: Add cpg for the Renesas RZ/T2H SoC dt-bindings: serial: Add compatible for Renesas RZ/T2H SoC in sci soc: renesas: Add RZ/T2H (R9A09G077) config option clk: renesas: Pass sub struct of cpg_mssr_priv to cpg_clk_register clk: renesas: Add support for R9A09G077 SoC serial: sh-sci: Fix a comment about SCIFA serial: sh-sci: Introduced function pointers serial: sh-sci: Introduced sci_of_data serial: sh-sci: Add support for RZ/T2H SCI arm64: dts: renesas: Add initial support for renesas RZ/T2H SoC arm64: dts: renesas: Add initial support for renesas RZ/T2H eval board arm64: defconfig: Enable Renesas RZ/T2H serial SCI .../bindings/clock/renesas,cpg-mssr.yaml | 57 +- .../bindings/serial/renesas,sci.yaml | 63 +- .../bindings/soc/renesas/renesas.yaml | 10 + arch/arm/boot/dts/renesas/Makefile | 1 + .../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 35 + arch/arm64/boot/dts/renesas/r9a09g077.dtsi | 129 ++++ arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi | 13 + arch/arm64/configs/defconfig | 1 + drivers/clk/renesas/Kconfig | 5 + drivers/clk/renesas/Makefile | 1 + drivers/clk/renesas/r7s9210-cpg-mssr.c | 7 +- drivers/clk/renesas/r8a77970-cpg-mssr.c | 11 +- drivers/clk/renesas/r9a09g077-cpg-mssr.c | 238 +++++++ drivers/clk/renesas/rcar-gen2-cpg.c | 5 +- drivers/clk/renesas/rcar-gen2-cpg.h | 3 +- drivers/clk/renesas/rcar-gen3-cpg.c | 6 +- drivers/clk/renesas/rcar-gen3-cpg.h | 6 +- drivers/clk/renesas/rcar-gen4-cpg.c | 8 +- drivers/clk/renesas/rcar-gen4-cpg.h | 3 +- drivers/clk/renesas/renesas-cpg-mssr.c | 153 ++-- drivers/clk/renesas/renesas-cpg-mssr.h | 43 +- drivers/soc/renesas/Kconfig | 6 + drivers/tty/serial/Kconfig | 7 + drivers/tty/serial/Makefile | 1 + drivers/tty/serial/rsci.c | 467 +++++++++++++ drivers/tty/serial/rsci.h | 12 + drivers/tty/serial/sh-sci-common.h | 167 +++++ drivers/tty/serial/sh-sci.c | 651 ++++++++++-------- drivers/tty/serial/sh-sci.h | 2 - .../clock/renesas,r9a09g077-cpg-mssr.h | 49 ++ include/linux/serial_sci.h | 3 +- include/uapi/linux/serial_core.h | 3 + 32 files changed, 1775 insertions(+), 391 deletions(-) create mode 100644 arch/arm/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077.dtsi create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi create mode 100644 drivers/clk/renesas/r9a09g077-cpg-mssr.c create mode 100644 drivers/tty/serial/rsci.c create mode 100644 drivers/tty/serial/rsci.h create mode 100644 drivers/tty/serial/sh-sci-common.h create mode 100644 include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h