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Add Support renesas ra sci i2c #86627

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merged 4 commits into from
Mar 24, 2025
Merged

Add Support renesas ra sci i2c #86627

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90c67b2
drivers: i2c: initial support for i2c sci-b driver on Renesas RA family
Feb 18, 2025
3fc8731
dts: arm: add i2c device node to sci device for Renesas RA family
Feb 18, 2025
9e2078e
boards: renesas: add support for i2c sci-b driver on Renesas RA boards
Feb 27, 2025
26a9294
tests: i2c: add support for i2c sci-b on Renesas RA boards
Feb 27, 2025
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9 changes: 9 additions & 0 deletions boards/renesas/ek_ra8d1/ek_ra8d1-pinctrl.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,15 @@
};
};

sci4_default: sci4_default {
group1 {
/* sda scl */
psels = <RA_PSEL(RA_PSEL_SCI_4, 4, 15)>,<RA_PSEL(RA_PSEL_SCI_4, 4, 14)>;
drive-strength = "medium";
drive-open-drain;
};
};

spi1_default: spi1_default {
group1 {
/* MISO MOSI RSPCK SSL */
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11 changes: 11 additions & 0 deletions boards/renesas/ek_ra8d1/ek_ra8d1.dts
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Expand Up @@ -172,6 +172,17 @@
};
};

&sci4 {
pinctrl-0 = <&sci4_default>;
pinctrl-names = "default";

i2c4: i2c {
sda-output-delay = <300>;
noise-filter-clock-select = <1>;
bit-rate-modulation;
};
};

&trng {
status = "okay";
};
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9 changes: 9 additions & 0 deletions boards/renesas/ek_ra8m1/ek_ra8m1-pinctrl.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,15 @@
};
};

sci1_default: sci1_default {
group1 {
/* sda scl */
psels = <RA_PSEL(RA_PSEL_SCI_1, 7, 7)>,<RA_PSEL(RA_PSEL_SCI_1, 7, 6)>;
drive-strength = "medium";
drive-open-drain;
};
};

sci2_default: sci2_default {
group1 {
/* tx */
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11 changes: 11 additions & 0 deletions boards/renesas/ek_ra8m1/ek_ra8m1.dts
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Expand Up @@ -220,6 +220,17 @@
};
};

&sci1 {
pinctrl-0 = <&sci1_default>;
pinctrl-names = "default";

i2c1: i2c {
sda-output-delay = <300>;
noise-filter-clock-select = <1>;
bit-rate-modulation;
};
};

&sci2 {
pinctrl-0 = <&sci2_default>;
pinctrl-names = "default";
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9 changes: 9 additions & 0 deletions boards/renesas/mck_ra8t1/mck_ra8t1-pinctrl.dtsi
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Expand Up @@ -16,6 +16,15 @@
};
};

sci9_default: sci9_default {
group1 {
/* sda scl*/
psels = <RA_PSEL(RA_PSEL_SCI_9, 10, 14)>,<RA_PSEL(RA_PSEL_SCI_9, 10, 15)>;
drive-strength = "medium";
drive-open-drain;
};
};

spi0_default: spi0_default {
group1 {
/* MISO MOSI RSPCK SSL*/
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11 changes: 11 additions & 0 deletions boards/renesas/mck_ra8t1/mck_ra8t1.dts
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Expand Up @@ -119,6 +119,17 @@
};
};

&sci9 {
pinctrl-0 = <&sci9_default>;
pinctrl-names = "default";

i2c9: i2c {
sda-output-delay = <300>;
noise-filter-clock-select = <1>;
bit-rate-modulation;
};
};

&trng {
status = "okay";
};
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1 change: 1 addition & 0 deletions drivers/i2c/CMakeLists.txt
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Expand Up @@ -53,6 +53,7 @@ zephyr_library_sources_ifdef(CONFIG_I2C_NXP_II2C i2c_nxp_ii2c.c)
zephyr_library_sources_ifdef(CONFIG_I2C_OMAP i2c_omap.c)
zephyr_library_sources_ifdef(CONFIG_I2C_RCAR i2c_rcar.c)
zephyr_library_sources_ifdef(CONFIG_I2C_RENESAS_RA_IIC i2c_renesas_ra_iic.c)
zephyr_library_sources_ifdef(CONFIG_I2C_RENESAS_RA_SCI_B i2c_renesas_ra_sci_b.c)
zephyr_library_sources_ifdef(CONFIG_I2C_RENESAS_RZ_RIIC i2c_renesas_rz_riic.c)
zephyr_library_sources_ifdef(CONFIG_I2C_RV32M1_LPI2C i2c_rv32m1_lpi2c.c)
zephyr_library_sources_ifdef(CONFIG_I2C_SAM0 i2c_sam0.c)
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22 changes: 21 additions & 1 deletion drivers/i2c/Kconfig.renesas_ra
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
# Renesas RA Family

# Copyright (c) 2024 Renesas Electronics Corporation
# Copyright (c) 2024-2025 Renesas Electronics Corporation
# SPDX-License-Identifier: Apache-2.0

config I2C_RENESAS_RA_IIC
Expand All @@ -11,3 +11,23 @@ config I2C_RENESAS_RA_IIC
select PINCTRL
help
Enable Renesas RA I2C IIC Driver.

config I2C_RENESAS_RA_SCI_B
bool "Renesas RA SCI-B I2C"
default y
depends on DT_HAS_RENESAS_RA_I2C_SCI_B_ENABLED
select USE_RA_FSP_SCI_B_I2C
select PINCTRL
help
Enable Renesas RA SCI-B I2C Driver.

if I2C_RENESAS_RA_SCI_B

config I2C_RENESAS_RA_SCI_B_DTC
bool "DTC on Transmission and Reception"
default y
select USE_RA_FSP_DTC
help
Enable DTC on transmission and reception

endif
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