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test: spi_loopback: nxp: Add Flexio spi test support

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Add overlay file for RT1170 EVK and simply existing flexio spi overlay
file for RT1060 EVKC and RT1064 EVK. One flexio-spi interface for both slow
and fast tests. Fast baud rate set to 16Mbps now.

Signed-off-by: Raymond Lei <raymond.lei@nxp.com>
This commit is contained in:
Raymond Lei 2025-04-21 17:56:19 -05:00 committed by Dan Kalowsky
parent 581e7ff2aa
commit dd90248a3a
4 changed files with 82 additions and 39 deletions
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10
drivers/spi/spi_mcux_flexio.c
View File

@ -199,13 +199,13 @@ static void spi_flexio_master_init(FLEXIO_SPI_Type *base, flexio_spi_master_conf
timerConfig.timerEnable = kFLEXIO_TimerEnableOnTriggerHigh;
timerConfig.timerStop = kFLEXIO_TimerStopBitEnableOnTimerDisable;
timerConfig.timerStart = kFLEXIO_TimerStartBitEnabled;
/* Low 8-bits are used to configure baudrate. */
/* Low 8-bits are used to configure baud rate. */
timerDiv = (uint16_t)(srcClock_Hz / masterConfig->baudRate_Bps);
/* Add protection if the required band rate overflows.
* FLEXIO input freq can't meet required band rate. Max band rate can
/* Add protection if the required baud rate overflows.
* FLEXIO input freq can't meet required baud rate. Max baud rate can
* not exceed 1/4 of input freq. You can raise input freq or lower
* bandrate required to remove this warning.
* baud rate required to remove this warning.
*/
if (timerDiv < 4) {
timerDiv = 4;
@ -214,7 +214,7 @@ static void spi_flexio_master_init(FLEXIO_SPI_Type *base, flexio_spi_master_conf
timerDiv += timerDiv & 1UL;
if (masterConfig->baudRate_Bps != (srcClock_Hz / timerDiv)) {
LOG_WRN("Bandrate req:%uKbps, got:%uKbps",
LOG_WRN("baud rate req:%uKbps, got:%uKbps",
(uint32_t)(masterConfig->baudRate_Bps / 1000),
(uint32_t)(srcClock_Hz / (timerDiv*1000)));
}

55
tests/drivers/spi/spi_loopback/boards/mimxrt1170_evk_mimxrt1176_cm7_flexio_spi.overlay Normal file
View File

@ -0,0 +1,55 @@
/*
* Copyright 2025 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
&lpspi1 {
dmas = <&edma0 0 36>, <&edma0 1 37>;
dma-names = "rx", "tx";
status = "disabled";
};
&pinctrl {
pinmux_flexio2spi1: pinmux_flexio2spi1 {
group0 {
pinmux = <&iomuxc_gpio_ad_29_gpio9_io28>, /* cs */
<&iomuxc_gpio_ad_28_flexio2_flexio28>, /* sck */
<&iomuxc_gpio_ad_30_flexio2_flexio30>, /* sdo */
<&iomuxc_gpio_ad_31_flexio2_flexio31>; /* sdi */
drive-strength = "high";
slew-rate = "slow";
};
};
};
&flexio2 {
status = "okay";
flexio2spi1: flexio2spi1 {
compatible = "nxp,flexio-spi";
cs-gpios = <&gpio9 28 GPIO_ACTIVE_LOW>;
#address-cells = <1>;
#size-cells = <0>;
sdo-pin = <30>;
sdi-pin = <31>;
sck-pin = <28>;
pinctrl-0 = <&pinmux_flexio2spi1>;
pinctrl-names = "default";
status = "okay";
slow@0 {
compatible = "test-spi-loopback-slow";
reg = <0>;
spi-max-frequency = <500000>;
};
fast@0 {
compatible = "test-spi-loopback-fast";
reg = <0>;
spi-max-frequency = <16000000>;
};
};
};

43
tests/drivers/spi/spi_loopback/overlay-mcux-flexio-spi.overlay
View File

@ -1,34 +1,28 @@
/*
* Copyright (c) 2024, STRIM, ALC
* Copyright (c) 2025, NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
/* On RT1060 EVKC, SPI loopback test, short J17-9 and J17-10
* On RT1064 EVK, SPI loopback test, short J24-9 and J24-10
*/
&pinctrl {
pinmux_flexio3spi0: pinmux_flexio3spi0 {
group0 {
pinmux =
<&iomuxc_gpio_ad_b0_03_gpio1_io03>, /* cs */
<&iomuxc_gpio_ad_b1_10_flexio3_flexio10>, /* sck */
<&iomuxc_gpio_ad_b1_01_flexio3_flexio01>, /* sdo */
<&iomuxc_gpio_ad_b1_04_flexio3_flexio04>; /* sdi */
drive-strength = "r0-6";
slew-rate = "slow";
nxp,speed = "150-mhz";
};
};
pinmux_flexio3spi1: pinmux_flexio3spi1 {
group0 {
pinmux =
<&iomuxc_gpio_ad_b0_02_gpio1_io02>, /* cs */
<&iomuxc_gpio_ad_b1_11_flexio3_flexio11>, /* sck */
<&iomuxc_gpio_ad_b1_00_flexio3_flexio00>, /* sdo */
<&iomuxc_gpio_ad_b1_05_flexio3_flexio05>; /* sdi */
<&iomuxc_gpio_ad_b1_01_flexio3_flexio01>; /* sdi */
drive-strength = "r0-6";
slew-rate = "slow";
nxp,speed = "150-mhz";
};
};
};
&flexio3 {
@ -39,8 +33,8 @@
#address-cells = <1>;
#size-cells = <0>;
cs-gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
sdo-pin = <1>;
sdi-pin = <4>;
sdo-pin = <0>;
sdi-pin = <1>;
sck-pin = <10>;
pinctrl-0 = <&pinmux_flexio3spi0>;
pinctrl-names = "default";
@ -50,28 +44,13 @@
reg = <0>;
spi-max-frequency = <500000>;
};
};
flexio3_spi1: flexio3_spi1 {
compatible = "nxp,flexio-spi";
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
cs-gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
sdo-pin = <0>;
sdi-pin = <5>;
sck-pin = <11>;
pinctrl-0 = <&pinmux_flexio3spi1>;
pinctrl-names = "default";
fast@0 {
status = "okay";
compatible = "test-spi-loopback-fast";
reg = <0>;
spi-max-frequency = <4000000>;
spi-max-frequency = <16000000>;
};
};
};
/* pinmux_lpspi3 overlaps pinmux_flexio3spi1 */
&lpspi3 {
status = "disabled";
};

13
tests/drivers/spi/spi_loopback/testcase.yaml
View File

@ -196,12 +196,21 @@ tests:
extra_args: DTC_OVERLAY_FILE="overlay-mcux-flexio-spi.overlay"
filter: CONFIG_DT_HAS_NXP_FLEXIO_ENABLED and
CONFIG_DT_HAS_NXP_FLEXIO_SPI_ENABLED
platform_allow: mimxrt1064_evk
platform_allow:
- mimxrt1064_evk
- mimxrt1060_evk/mimxrt1062/qspi
drivers.spi.mimxrt1170_evk_mimxrt1176_cm7_flexio_spi.loopback:
extra_args: DTC_OVERLAY_FILE="boards/mimxrt1170_evk_mimxrt1176_cm7_flexio_spi.overlay"
filter: CONFIG_DT_HAS_NXP_FLEXIO_ENABLED and
CONFIG_DT_HAS_NXP_FLEXIO_SPI_ENABLED
platform_allow:
- mimxrt1170_evk/mimxrt1176/cm7
drivers.spi.mimxrt1040evk_flexio_spi.loopback:
extra_args: DTC_OVERLAY_FILE="boards/mimxrt1040_evk_flexio_spi.overlay"
filter: CONFIG_DT_HAS_NXP_FLEXIO_ENABLED and
CONFIG_DT_HAS_NXP_FLEXIO_SPI_ENABLED
platform_allow: mimxrt1040_evk
platform_allow:
- mimxrt1040_evk
drivers.spi.nrf54h_fast_2mhz:
extra_args:
- DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay"