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,
alllowing 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.
The new CPG clock driver comes with the minimal things at this stage,
with the assumption that most of the initialization is done earlier
by the bootloader. Also, 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.
Thierry Bultel (14):
dt-bindings: soc: Document Renesas RZ/T2H (R9A09G077) SoC
dt-bindings: serial: Document sci bindings for the Renesas RZ/T2H
(a.k.a r9a09g077) SoC
dt-bindings: soc: Document the Renesas RZ/T2H Evaluation board for the
R9A09G077 SoC
dt-bindings: clock: Document cpg bindings for the Renesas RZ/T2H SoC
soc: renesas: Add RZ/T2H (R9A09G077) config option
clk: renesas: Add support for RZ/T2H family clock
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
defconfig: Enable RZ/T2H Soc and RZ_SCI
.../bindings/clock/renesas,rzt2h-cpg.yaml | 73 +++
.../bindings/serial/renesas,rzsci.yaml | 100 ++++
.../bindings/soc/renesas/renesas.yaml | 10 +
arch/arm64/boot/dts/renesas/Makefile | 1 +
arch/arm64/boot/dts/renesas/r9a09g077.dtsi | 129 ++++
.../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 37 ++
arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi | 8 +
arch/arm64/configs/defconfig | 2 +
drivers/clk/renesas/Kconfig | 9 +
drivers/clk/renesas/Makefile | 2 +
drivers/clk/renesas/r9a09g077-cpg.c | 100 ++++
drivers/clk/renesas/rzt2h-cpg.c | 549 ++++++++++++++++++
drivers/clk/renesas/rzt2h-cpg.h | 201 +++++++
drivers/soc/renesas/Kconfig | 5 +
drivers/tty/serial/Kconfig | 7 +
drivers/tty/serial/Makefile | 1 +
drivers/tty/serial/rzsci.c | 484 +++++++++++++++
drivers/tty/serial/rzsci.h | 12 +
drivers/tty/serial/sh-sci.c | 421 +++++++-------
drivers/tty/serial/sh-sci_common.h | 179 ++++++
include/dt-bindings/clock/r9a09g077-cpg.h | 144 +++++
include/linux/serial_sci.h | 3 +-
include/uapi/linux/serial_core.h | 3 +
23 files changed, 2284 insertions(+), 196 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/renesas,rzt2h-cpg.yaml
create mode 100644 Documentation/devicetree/bindings/serial/renesas,rzsci.yaml
create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077.dtsi
create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi
create mode 100644 drivers/clk/renesas/r9a09g077-cpg.c
create mode 100644 drivers/clk/renesas/rzt2h-cpg.c
create mode 100644 drivers/clk/renesas/rzt2h-cpg.h
create mode 100644 drivers/tty/serial/rzsci.c
create mode 100644 drivers/tty/serial/rzsci.h
create mode 100644 drivers/tty/serial/sh-sci_common.h
create mode 100644 include/dt-bindings/clock/r9a09g077-cpg.h
--
2.43.0
