This is an updated version of something I wrote about 7 years ago.
Minimum support for R2D-plus and LANDISK.
I think R2D-1 will work if you add AX88796 to dts.
And board-specific functions and SCI's SPI functions are not supported.
You can get it working with qemu found here.
https://gitlab.com/yoshinori.sato/qemu/-/tree/landisk
v6 changes.
- pci-sh7751: merge register define.
- pci-sh7751: use 'dma-ranges' property.
- pci-sh7751: rename general PCI properties.
- sm501 and sm501fb: Re-design Device Tree properties.
- sh/kernel/setup: cleanup command line setup.
- irq-sh7751.c: some cleanup.
v5 changes.
- pci-sh7751: revert header changes. and some fix in previuous driver.
- sh/kernel/iomap.c: Use SH io functions.
- sm501 and sm501fb: re-write DT support.
v4 changes.
- cpg-sh7750: use clk-divider and clk-gate.
- pci-sh7751: unified header files to old PCI driver.
- irq-renesas-sh7751: IPR registers direct mapping.
- irq-renesas-sh7751irl: useful register bit mapping.
- sm501 and sm501fb: re-write dt parser.
- j2_minus: fix build error.
- dt-binding schema: fix some errors.
- *.dts: cleanup.
v3 changes.
- Rewrite clk drivers.
- Added sh_tmu to OF support.
- Cleanup PCI stuff.
- Update sm501 and sm501fb OF support.
- Update devicetree and documents.
v2 changes.
- Rebasing v6,6-rc1
- re-write irqchip driver.
- Add binding documents.
- Cleanup review comment.
Yoshinori Sato (37):
sh: passing FDT address to kernel startup.
sh: Kconfig unified OF supported targets.
sh: Enable OF support for build and configuration.
dt-bindings: interrupt-controller: Add header for Renesas SH3/4 INTC.
sh: GENERIC_IRQ_CHIP support for CONFIG_OF=y
sh: kernel/setup Update DT support.
sh: Fix COMMON_CLK support in CONFIG_OF=y.
clocksource: sh_tmu: CLOCKSOURCE support.
dt-bindings: timer: renesas,tmu: add renesas,tmu-sh7750
sh: Common PCI Framework driver support.
pci: pci-sh7751: Add SH7751 PCI driver
dt-bindings: pci: pci-sh7751: Add SH7751 PCI
dt-bindings: clock: sh7750-cpg: Add renesas,sh7750-cpg header.
clk: Compatible with narrow registers
clk: renesas: Add SH7750/7751 CPG Driver
irqchip: Add SH7751 INTC driver
dt-bindings: interrupt-controller: renesas,sh7751-intc: Add
json-schema
irqchip: SH7751 external interrupt encoder with enable gate.
dt-bindings: interrupt-controller: renesas,sh7751-irl-ext: Add
json-schema
serial: sh-sci: fix SH4 OF support.
dt-bindings: serial: renesas,scif: Add scif-sh7751.
dt-bindings: display: smi,sm501: SMI SM501 binding json-schema
mfd: sm501: Convert platform_data to OF property
dt-binding: sh: cpus: Add SH CPUs json-schema
dt-bindings: vendor-prefixes: Add iodata
dt-bindings: vendor-prefixes: Add smi
dt-bindings: ata: ata-generic: Add new targets
dt-bindings: soc: renesas: sh: Add SH7751 based target
sh: SH7751R SoC Internal peripheral definition dtsi.
sh: add RTS7751R2D Plus DTS
sh: Add IO DATA LANDISK dts
sh: Add IO DATA USL-5P dts
sh: j2_mimas_v2.dts update
sh: Add dtbs target support.
sh: RTS7751R2D Plus OF defconfig
sh: LANDISK OF defconfig
sh: j2_defconfig: update
.../devicetree/bindings/ata/ata-generic.yaml | 2 +
.../bindings/clock/renesas,sh7750-cpg.yaml | 103 ++++
.../bindings/display/smi,sm501.yaml | 417 +++++++++++++++
.../renesas,sh7751-intc.yaml | 105 ++++
.../renesas,sh7751-irl-ext.yaml | 72 +++
.../bindings/pci/renesas,sh7751-pci.yaml | 150 ++++++
.../bindings/serial/renesas,scif.yaml | 1 +
.../devicetree/bindings/sh/cpus.yaml | 74 +++
.../devicetree/bindings/soc/renesas/sh.yaml | 32 ++
.../bindings/timer/renesas,tmu.yaml | 67 ++-
.../devicetree/bindings/vendor-prefixes.yaml | 4 +
arch/sh/Kconfig | 12 +-
arch/sh/boards/Kconfig | 24 +-
arch/sh/boards/of-generic.c | 28 +-
arch/sh/boot/compressed/head_32.S | 5 +-
arch/sh/boot/dts/Makefile | 5 +
arch/sh/boot/dts/j2_mimas_v2.dts | 2 +-
arch/sh/boot/dts/landisk.dts | 75 +++
arch/sh/boot/dts/rts7751r2dplus.dts | 180 +++++++
arch/sh/boot/dts/sh7751r.dtsi | 152 ++++++
arch/sh/boot/dts/usl-5p.dts | 83 +++
arch/sh/configs/j2_defconfig | 11 +-
arch/sh/configs/landisk-of_defconfig | 104 ++++
arch/sh/configs/rts7751r2dplus-of_defconfig | 80 +++
arch/sh/drivers/Makefile | 2 +
arch/sh/include/asm/io.h | 8 +
arch/sh/include/asm/irq.h | 10 +-
arch/sh/include/asm/pci.h | 4 +
arch/sh/kernel/cpu/Makefile | 6 +-
arch/sh/kernel/cpu/irq/imask.c | 17 +
arch/sh/kernel/cpu/sh4/Makefile | 3 +
arch/sh/kernel/iomap.c | 18 +
arch/sh/kernel/setup.c | 33 +-
arch/sh/kernel/time.c | 12 +
drivers/clk/clk-divider.c | 56 +-
drivers/clk/clk-gate.c | 56 +-
drivers/clk/renesas/Kconfig | 16 +-
drivers/clk/renesas/Makefile | 1 +
drivers/clk/renesas/clk-sh7750.c | 498 ++++++++++++++++++
drivers/clocksource/sh_tmu.c | 161 ++++--
drivers/irqchip/Kconfig | 15 +
drivers/irqchip/Makefile | 3 +
drivers/irqchip/irq-renesas-sh7751.c | 313 +++++++++++
drivers/irqchip/irq-renesas-sh7751irl.c | 228 ++++++++
drivers/mfd/sm501.c | 436 +++++++++++++++
drivers/pci/controller/Kconfig | 9 +
drivers/pci/controller/Makefile | 1 +
drivers/pci/controller/pci-sh7751.c | 392 ++++++++++++++
drivers/tty/serial/Kconfig | 2 +-
drivers/tty/serial/sh-sci.c | 6 +-
drivers/video/fbdev/sm501fb.c | 106 ++++
include/dt-bindings/clock/sh7750-cpg.h | 26 +
.../renesas,sh7751-intc.h | 19 +
include/linux/clk-provider.h | 22 +-
include/linux/sh_intc.h | 7 +-
55 files changed, 4096 insertions(+), 178 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/renesas,sh7750-cpg.yaml
create mode 100644 Documentation/devicetree/bindings/display/smi,sm501.yaml
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,sh7751-intc.yaml
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,sh7751-irl-ext.yaml
create mode 100644 Documentation/devicetree/bindings/pci/renesas,sh7751-pci.yaml
create mode 100644 Documentation/devicetree/bindings/sh/cpus.yaml
create mode 100644 Documentation/devicetree/bindings/soc/renesas/sh.yaml
create mode 100644 arch/sh/boot/dts/landisk.dts
create mode 100644 arch/sh/boot/dts/rts7751r2dplus.dts
create mode 100644 arch/sh/boot/dts/sh7751r.dtsi
create mode 100644 arch/sh/boot/dts/usl-5p.dts
create mode 100644 arch/sh/configs/landisk-of_defconfig
create mode 100644 arch/sh/configs/rts7751r2dplus-of_defconfig
create mode 100644 drivers/clk/renesas/clk-sh7750.c
create mode 100644 drivers/irqchip/irq-renesas-sh7751.c
create mode 100644 drivers/irqchip/irq-renesas-sh7751irl.c
create mode 100644 drivers/pci/controller/pci-sh7751.c
create mode 100644 include/dt-bindings/clock/sh7750-cpg.h
create mode 100644 include/dt-bindings/interrupt-controller/renesas,sh7751-intc.h
--
2.39.2
Signed-off-by: Yoshinori Sato <[email protected]>
---
.../devicetree/bindings/soc/renesas/sh.yaml | 32 +++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/renesas/sh.yaml
diff --git a/Documentation/devicetree/bindings/soc/renesas/sh.yaml b/Documentation/devicetree/bindings/soc/renesas/sh.yaml
new file mode 100644
index 000000000000..3fbff2532ad3
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/renesas/sh.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/renesas/sh.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas SuperH Platform
+
+maintainers:
+ - Yoshinori Sato <[email protected]>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: RTS7751R2D Plus
+ items:
+ - enum:
+ - renesas,rts7751r2d # Renesas SH4 2D graphics board
+ - const: renesas,sh7751r
+
+ - description: Julian board
+ items:
+ - enum:
+ - iodata,landisk # LANDISK HDL-U
+ - iodata,usl-5p # USL-5P
+ - const: renesas,sh7751r
+
+additionalProperties: true
+
+...
--
2.39.2
Hi Sato-san,
On Tue, Jan 9, 2024 at 9:24 AM Yoshinori Sato
<[email protected]> wrote:
> Signed-off-by: Yoshinori Sato <[email protected]>
Thanks for your patch!
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/renesas/sh.yaml
> @@ -0,0 +1,32 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/renesas/sh.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas SuperH Platform
> +
> +maintainers:
> + - Yoshinori Sato <[email protected]>
> +
> +properties:
> + $nodename:
> + const: '/'
> + compatible:
> + oneOf:
> + - description: RTS7751R2D Plus
> + items:
> + - enum:
> + - renesas,rts7751r2d # Renesas SH4 2D graphics board
> + - const: renesas,sh7751r
> +
> + - description: Julian board
> + items:
> + - enum:
> + - iodata,landisk # LANDISK HDL-U
> + - iodata,usl-5p # USL-5P
> + - const: renesas,sh7751r
As both use the same fallback compatible value, I would just merge
them into a single section for SH7751R.
> +
> +additionalProperties: true
> +
> +...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68korg
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds