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drivers: spi: Add basic support rpi-pico SPI (PrimeCell SSP PL022) #45131

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merged 5 commits into from
Aug 18, 2022
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drivers: spi: Add basic support rpi-pico SPI (PrimeCell SSP PL022) #45131

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a67f833
drivers: spi: Add basic support for PL022
soburi Apr 24, 2022
5886ab8
dts: arm: rpi_pico: Adding spi configurations to rp2040
soburi Apr 30, 2022
201aba8
boards: arm: rpi_pico: Adding spi configuration to rpi_pico
soburi Apr 30, 2022
95365da
tests: drivers: spi: loopback: add rpi_pico configuration
soburi May 13, 2022
55fd6d8
drivers: spi: pl022: Support interrupt based transfer
soburi Jun 4, 2022
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3 changes: 3 additions & 0 deletions boards/arm/rpi_pico/doc/index.rst
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Expand Up @@ -61,6 +61,9 @@ hardware features:
* - I2C
- :kconfig:option:`CONFIG_I2C`
- :dtcompatible:`snps,designware-i2c`
* - SPI
- :kconfig:option:`CONFIG_SPI`
- :dtcompatible:`raspberrypi,pico-spi`
* - USB Device
- :kconfig:option:`CONFIG_USB_DEVICE_STACK`
- :dtcompatible:`raspberrypi,pico-usbd`
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10 changes: 10 additions & 0 deletions boards/arm/rpi_pico/rpi_pico-pinctrl.dtsi
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Expand Up @@ -32,6 +32,16 @@
};
};

spi0_default: spi0_default {
group1 {
pinmux = <SPI0_CSN_P17>, <SPI0_SCK_P18>, <SPI0_TX_P19>;
};
group2 {
pinmux = <SPI0_RX_P16>;
input-enable;
};
};

pwm_ch4b_default: pwm_ch4b_default {
group1 {
pinmux = <PWM_4B_P25>;
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9 changes: 9 additions & 0 deletions boards/arm/rpi_pico/rpi_pico.dts
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Expand Up @@ -6,6 +6,8 @@

/dts-v1/;

#include <freq.h>

#include <rpi_pico/rp2040.dtsi>
#include "rpi_pico-pinctrl.dtsi"
#include <zephyr/dt-bindings/pwm/pwm.h>
Expand Down Expand Up @@ -103,6 +105,13 @@
pinctrl-names = "default";
};

&spi0 {
clock-frequency = <DT_FREQ_M(8)>;
status = "okay";
pinctrl-0 = <&spi0_default>;
pinctrl-names = "default";
};

&wdt0 {
status = "okay";
};
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1 change: 1 addition & 0 deletions boards/arm/rpi_pico/rpi_pico.yaml
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Expand Up @@ -12,6 +12,7 @@ supported:
- uart
- gpio
- i2c
- spi
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- hwinfo
- watchdog
- pwm
1 change: 1 addition & 0 deletions drivers/spi/CMakeLists.txt
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Expand Up @@ -30,5 +30,6 @@ zephyr_library_sources_ifdef(CONFIG_SPI_BITBANG spi_bitbang.c)
zephyr_library_sources_ifdef(CONFIG_SPI_XEC_QMSPI_LDMA spi_xec_qmspi_ldma.c)
zephyr_library_sources_ifdef(CONFIG_SPI_GD32 spi_gd32.c)
zephyr_library_sources_ifdef(CONFIG_SPI_MCHP_QSPI spi_mchp_mss_qspi.c)
zephyr_library_sources_ifdef(CONFIG_SPI_PL022 spi_pl022.c)

zephyr_library_sources_ifdef(CONFIG_USERSPACE spi_handlers.c)
2 changes: 2 additions & 0 deletions drivers/spi/Kconfig
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Expand Up @@ -103,4 +103,6 @@ source "drivers/spi/Kconfig.gd32"

source "drivers/spi/Kconfig.mchp_mss_qspi"

source "drivers/spi/Kconfig.pl022"

endif # SPI
16 changes: 16 additions & 0 deletions drivers/spi/Kconfig.pl022
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@@ -0,0 +1,16 @@
# Copyright (c) 2022 TOKITA Hiroshi <tokita.hiroshi@fujitsu.com>
# SPDX-License-Identifier: Apache-2.0

config SPI_PL022
default y
depends on DT_HAS_ARM_PL022_ENABLED
bool "ARM PL022 SPI driver"

if SPI_PL022

config SPI_PL022_INTERRUPT
bool "PL022 interrupt mode"
help
Enables interrupt support for PL022 SPI driver.

endif
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