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| author |   Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> | 2025-01-20 15:09:36 +0200 |
|---|---|---|
| committer |   Geert Uytterhoeven <geert+renesas@glider.be> | 2025-02-21 16:23:01 +0100 |
| commit | cc018b98a9bf47c06bc985632a7ed9291decb965 (patch) | |
| tree | 30ff6239b9264e8de5a1c6bd6bc6c2de24c7acc6 | |
| parent | arm64: dts: renesas: rzg3s-smarc: Enable SCIF3 (diff) | |
| download | wireguard-linux-cc018b98a9bf47c06bc985632a7ed9291decb965.tar.xz wireguard-linux-cc018b98a9bf47c06bc985632a7ed9291decb965.zip | |
arm64: dts: renesas: r9a08g045s33-smarc-pmod: Add overlay for SCIF1
Add a DT overlay for SCIF1 (of the Renesas RZ/G3S SoC) routed through
the PMOD1_3A interface available on the Renesas RZ SMARC Carrier II
board.
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250120130936.1080069-5-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
4 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile index 698f790bd425..c81d0f7f528a 100644 --- a/arch/arm64/boot/dts/renesas/Makefile +++ b/arch/arm64/boot/dts/renesas/Makefile @@ -143,6 +143,9 @@ r9a07g054l2-smarc-cru-csi-ov5645-dtbs := r9a07g054l2-smarc.dtb r9a07g054l2-smarc dtb-$(CONFIG_ARCH_R9A07G054) += r9a07g054l2-smarc-cru-csi-ov5645.dtb dtb-$(CONFIG_ARCH_R9A08G045) += r9a08g045s33-smarc.dtb +dtb-$(CONFIG_ARCH_R9A08G045) += r9a08g045s33-smarc-pmod1-type-3a.dtbo +r9a08g045s33-smarc-pmod1-type-3a-dtbs := r9a08g045s33-smarc.dtb r9a08g045s33-smarc-pmod1-type-3a.dtbo +dtb-$(CONFIG_ARCH_R9A08G045) += r9a08g045s33-smarc-pmod1-type-3a.dtb dtb-$(CONFIG_ARCH_R9A09G011) += r9a09g011-v2mevk2.dtb diff --git a/arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod1-type-3a.dtso b/arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod1-type-3a.dtso new file mode 100644 index 000000000000..4a81e3a3c8bd --- /dev/null +++ b/arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod1-type-3a.dtso @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Device Tree Source for the RZ/G3S SMARC Carrier II EVK PMOD parts + * + * Copyright (C) 2024 Renesas Electronics Corp. + * + * + * [Connection] + * + * SMARC Carrier II EVK + * +--------------------------------------------+ + * |PMOD1_3A (PMOD1 PIN HEADER) | + * | SCIF1_CTS# (pin1) (pin7) PMOD1_GPIO10 | + * | SCIF1_TXD (pin2) (pin8) PMOD1_GPIO11 | + * | SCIF1_RXD (pin3) (pin9) PMOD1_GPIO12 | + * | SCIF1_RTS# (pin4) (pin10) PMOD1_GPIO13 | + * | GND (pin5) (pin11) GND | + * | PWR_PMOD1 (pin6) (pin12) GND | + * +--------------------------------------------+ + * + * The following switches should be set as follows for SCIF1: + * - SW_CONFIG2: ON + * - SW_OPT_MUX4: ON + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/pinctrl/rzg2l-pinctrl.h> +#include "rzg3s-smarc-switches.h" + +&pinctrl { + scif1_pins: scif1-pins { + pinmux = <RZG2L_PORT_PINMUX(14, 0, 1)>, /* TXD */ + <RZG2L_PORT_PINMUX(14, 1, 1)>, /* RXD */ + <RZG2L_PORT_PINMUX(16, 0, 1)>, /* CTS# */ + <RZG2L_PORT_PINMUX(16, 1, 1)>; /* RTS# */ + }; +}; + +#if SW_CONFIG3 == SW_ON && SW_OPT_MUX4 == SW_ON +&scif1 { + pinctrl-names = "default"; + pinctrl-0 = <&scif1_pins>; + uart-has-rtscts; + status = "okay"; +}; +#endif diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h b/arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h index 5c27c043afef..bbf908a5322c 100644 --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h @@ -29,4 +29,12 @@ #define SW_CONFIG2 SW_OFF #define SW_CONFIG3 SW_ON +/* + * SW_OPT_MUX[x] switches' states: + * @SW_OPT_MUX4: + * SW_OFF - The SMARC SER0 signals are routed to M.2 Key E UART + * SW_ON - The SMARC SER0 signals are routed to PMOD1 + */ +#define SW_OPT_MUX4 SW_ON + #endif /* __RZG3S_SMARC_SWITCHES_H__ */ diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi index 0851e0b7ed40..5e044a4d0234 100644 --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi @@ -12,6 +12,7 @@ / { aliases { i2c0 = &i2c0; + serial0 = &scif1; serial1 = &scif3; serial3 = &scif0; mmc1 = &sdhi1; |