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charset="utf-8" Add clock and reset entries for the Renesas RZ/G3E RSPI IPs. Signed-off-by: Tommaso Merciai Reviewed-by: Geert Uytterhoeven --- drivers/clk/renesas/r9a09g047-cpg.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a0= 9g047-cpg.c index 1e9896742a06..45e2d9f93b92 100644 --- a/drivers/clk/renesas/r9a09g047-cpg.c +++ b/drivers/clk/renesas/r9a09g047-cpg.c @@ -224,6 +224,24 @@ static const struct rzv2h_mod_clk r9a09g047_mod_clks[]= __initconst =3D { BUS_MSTOP(5, BIT(13))), DEF_MOD("wdt_3_clk_loco", CLK_QEXTAL, 5, 2, 2, 18, BUS_MSTOP(5, BIT(13))), + DEF_MOD("rspi_0_pclk", CLK_PLLCLN_DIV8, 5, 4, 2, 20, + BUS_MSTOP(11, BIT(0))), + DEF_MOD("rspi_0_pclk_sfr", CLK_PLLCLN_DIV8, 5, 5, 2, 21, + BUS_MSTOP(11, BIT(0))), + DEF_MOD("rspi_0_tclk", CLK_PLLCLN_DIV8, 5, 6, 2, 22, + BUS_MSTOP(11, BIT(0))), + DEF_MOD("rspi_1_pclk", CLK_PLLCLN_DIV8, 5, 7, 2, 23, + BUS_MSTOP(11, BIT(1))), + DEF_MOD("rspi_1_pclk_sfr", CLK_PLLCLN_DIV8, 5, 8, 2, 24, + BUS_MSTOP(11, BIT(1))), + DEF_MOD("rspi_1_tclk", CLK_PLLCLN_DIV8, 5, 9, 2, 25, + BUS_MSTOP(11, BIT(1))), + DEF_MOD("rspi_2_pclk", CLK_PLLCLN_DIV8, 5, 10, 2, 26, + BUS_MSTOP(11, BIT(2))), + DEF_MOD("rspi_2_pclk_sfr", CLK_PLLCLN_DIV8, 5, 11, 2, 27, + BUS_MSTOP(11, BIT(2))), + DEF_MOD("rspi_2_tclk", CLK_PLLCLN_DIV8, 5, 12, 2, 28, + BUS_MSTOP(11, BIT(2))), DEF_MOD("rsci0_pclk", CLK_PLLCLN_DIV16, 5, 13, 2, 29, BUS_MSTOP(11, BIT(3))), DEF_MOD("rsci0_tclk", CLK_PLLCLN_DIV16, 5, 14, 2, 30, @@ -457,6 +475,12 @@ static const struct rzv2h_reset r9a09g047_resets[] __i= nitconst =3D { DEF_RST(7, 6, 3, 7), /* WDT_1_RESET */ DEF_RST(7, 7, 3, 8), /* WDT_2_RESET */ DEF_RST(7, 8, 3, 9), /* WDT_3_RESET */ + DEF_RST(7, 11, 3, 12), /* RSPI_0_PRESETN */ + DEF_RST(7, 12, 3, 13), /* RSPI_0_TRESETN */ + DEF_RST(7, 13, 3, 14), /* RSPI_1_PRESETN */ + DEF_RST(7, 14, 3, 15), /* RSPI_1_TRESETN */ + DEF_RST(7, 15, 3, 16), /* RSPI_2_PRESETN */ + DEF_RST(8, 0, 3, 17), /* RSPI_2_TRESETN */ DEF_RST(8, 1, 3, 18), /* RSCI0_PRESETN */ DEF_RST(8, 2, 3, 19), /* RSCI0_TRESETN */ DEF_RST(8, 3, 3, 20), /* RSCI1_PRESETN */ --=20 2.43.0 From nobody Fri Apr 3 04:52:59 2026 Received: from TY3P286CU002.outbound.protection.outlook.com (mail-japaneastazon11010031.outbound.protection.outlook.com [52.101.229.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F10E836EA99; 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charset="utf-8" Document the dmas property to state it must be specified as TX/RX DMA specifier pairs. This clarifies the expected ordering and improves binding readability without changing behavior. Signed-off-by: Tommaso Merciai Reviewed-by: Geert Uytterhoeven --- - This patch depend up on [0] - [0] https://lore.kernel.org/all/20260128215132.1353381-2-cosmin-gabriel.= tanislav.xa@renesas.com/ Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml = b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml index cf8b733b766d..d6a5338d6521 100644 --- a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml +++ b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml @@ -60,6 +60,9 @@ properties: dmas: minItems: 2 maxItems: 10 + description: + Must contain a list of pairs of references to DMA specifiers, one for + transmission, and one for reception. =20 dma-names: minItems: 2 --=20 2.43.0 From nobody Fri Apr 3 04:52:59 2026 Received: from OS0P286CU011.outbound.protection.outlook.com (mail-japanwestazon11010026.outbound.protection.outlook.com [52.101.228.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 50E0136EA8A; 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charset="utf-8" Document the RSPI controller on the Renesas RZ/G3E SoC. The block is compatible with the RSPI implementation found on the RZ/V2H(P) family. Signed-off-by: Tommaso Merciai Reviewed-by: Geert Uytterhoeven --- - This patch depend up on [0] - [0] https://lore.kernel.org/all/20260128215132.1353381-2-cosmin-gabriel.= tanislav.xa@renesas.com/ Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml = b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml index d6a5338d6521..2c9045fd51de 100644 --- a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml +++ b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml @@ -16,7 +16,9 @@ properties: - renesas,r9a09g057-rspi # RZ/V2H(P) - renesas,r9a09g077-rspi # RZ/T2H - items: - - const: renesas,r9a09g056-rspi # RZ/V2N + - enum: + - renesas,r9a09g047-rspi # RZ/G3E + - renesas,r9a09g056-rspi # RZ/V2N - const: renesas,r9a09g057-rspi - items: - const: renesas,r9a09g087-rspi # RZ/N2H --=20 2.43.0 From nobody Fri Apr 3 04:52:59 2026 Received: from OS0P286CU011.outbound.protection.outlook.com (mail-japanwestazon11010030.outbound.protection.outlook.com [52.101.228.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 974D536EAAD; 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charset="utf-8" Add nodes for the RSPI IPs found in the Renesas RZ/G3E SoC. Signed-off-by: Tommaso Merciai Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/d= ts/renesas/r9a09g047.dtsi index cbb48ff5028f..94d23cc013f7 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi @@ -591,6 +591,90 @@ channel5 { }; }; =20 + rspi0: spi@12800000 { + compatible =3D "renesas,r9a09g047-rspi", "renesas,r9a09g057-rspi"; + reg =3D <0x0 0x12800000 0x0 0x400>; + interrupts =3D , + , + , + , + ; + interrupt-names =3D "idle", "error", "end", "rx", "tx"; + clocks =3D <&cpg CPG_MOD 0x54>, + <&cpg CPG_MOD 0x55>, + <&cpg CPG_MOD 0x56>; + clock-names =3D "pclk", "pclk_sfr", "tclk"; + resets =3D <&cpg 0x7b>, <&cpg 0x7c>; + reset-names =3D "presetn", "tresetn"; + dmas =3D <&dmac0 0x448c>, <&dmac0 0x448d>, + <&dmac1 0x448c>, <&dmac1 0x448d>, + <&dmac2 0x448c>, <&dmac2 0x448d>, + <&dmac3 0x448c>, <&dmac3 0x448d>, + <&dmac4 0x448c>, <&dmac4 0x448d>; + dma-names =3D "rx", "tx", "rx", "tx", "rx", "tx", + "rx", "tx", "rx", "tx"; + power-domains =3D <&cpg>; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "disabled"; + }; + + rspi1: spi@12800400 { + compatible =3D "renesas,r9a09g047-rspi", "renesas,r9a09g057-rspi"; + reg =3D <0x0 0x12800400 0x0 0x400>; + interrupts =3D , + , + , + , + ; + interrupt-names =3D "idle", "error", "end", "rx", "tx"; + clocks =3D <&cpg CPG_MOD 0x57>, + <&cpg CPG_MOD 0x58>, + <&cpg CPG_MOD 0x59>; + clock-names =3D "pclk", "pclk_sfr", "tclk"; + resets =3D <&cpg 0x7d>, <&cpg 0x7e>; + reset-names =3D "presetn", "tresetn"; + dmas =3D <&dmac0 0x448e>, <&dmac0 0x448f>, + <&dmac1 0x448e>, <&dmac1 0x448f>, + <&dmac2 0x448e>, <&dmac2 0x448f>, + <&dmac3 0x448e>, <&dmac3 0x448f>, + <&dmac4 0x448e>, <&dmac4 0x448f>; + dma-names =3D "rx", "tx", "rx", "tx", "rx", "tx", + "rx", "tx", "rx", "tx"; + power-domains =3D <&cpg>; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "disabled"; + }; + + rspi2: spi@12800800 { + compatible =3D "renesas,r9a09g047-rspi", "renesas,r9a09g057-rspi"; + reg =3D <0x0 0x12800800 0x0 0x400>; + interrupts =3D , + , + , + , + ; + interrupt-names =3D "idle", "error", "end", "rx", "tx"; + clocks =3D <&cpg CPG_MOD 0x5a>, + <&cpg CPG_MOD 0x5b>, + <&cpg CPG_MOD 0x5c>; + clock-names =3D "pclk", "pclk_sfr", "tclk"; + resets =3D <&cpg 0x7f>, <&cpg 0x80>; + reset-names =3D "presetn", "tresetn"; + dmas =3D <&dmac0 0x4490>, <&dmac0 0x4491>, + <&dmac1 0x4490>, <&dmac1 0x4491>, + <&dmac2 0x4490>, <&dmac2 0x4491>, + <&dmac3 0x4490>, <&dmac3 0x4491>, + <&dmac4 0x4490>, <&dmac4 0x4491>; + dma-names =3D "rx", "tx", "rx", "tx", "rx", "tx", + "rx", "tx", "rx", "tx"; + power-domains =3D <&cpg>; + #address-cells =3D <1>; + #size-cells =3D <0>; + status =3D "disabled"; + }; + rsci0: serial@12800c00 { compatible =3D "renesas,r9a09g047-rsci"; reg =3D <0 0x12800c00 0 0x400>; --=20 2.43.0 From nobody Fri Apr 3 04:52:59 2026 Received: from OS0P286CU011.outbound.protection.outlook.com (mail-japanwestazon11010057.outbound.protection.outlook.com [52.101.228.57]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E078036EA8D; 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charset="utf-8" Enable RSPI0 on RZ/G3E SMARC EVK. Signed-off-by: Tommaso Merciai Reviewed-by: Geert Uytterhoeven --- .../boot/dts/renesas/r9a09g047e57-smarc.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts b/arch/arm6= 4/boot/dts/renesas/r9a09g047e57-smarc.dts index 696903dc7a63..78dcbac8f4e8 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts @@ -167,6 +167,13 @@ rsci9_pins: rsci9 { bias-pull-up; }; =20 + rspi0_pins: rspi0 { + pinmux =3D , /* MISOA */ + , /* MOSIA */ + , /* SSLA0 */ + ; /* RSPCKA */ + }; + scif_pins: scif { pins =3D "SCIF_TXD", "SCIF_RXD"; renesas,output-impedance =3D <1>; @@ -234,6 +241,15 @@ &rsci9 { }; #endif =20 +&rspi0 { + pinctrl-0 =3D <&rspi0_pins>; + pinctrl-names =3D "default"; + #address-cells =3D <1>; + #size-cells =3D <0>; + + status =3D "okay"; +}; + &scif0 { pinctrl-0 =3D <&scif_pins>; pinctrl-names =3D "default"; --=20 2.43.0