I am trying to modify the nRF52840dk_nrf52840 spi_flash sample, ncs/zephyr/samples/drivers/spi_flash, to use dual QSPI.
Following is my device tree configuration:
&spi1 {
compatible = "nordic,nrf-spi";
status = "okay";
sck-pin = <31>;
mosi-pin = <30>;
miso-pin = <45>;
};
&qspi {
status = "okay";
sck-pin = <31>;
io-pins = <30 45>;
csn-pins = <29>;
mx25r64: mx25r6435f@0 {
compatible = "nordic,qspi-nor";
reg = <0>;
quad-enable-requirements = "NONE";
/* MX24R64 supports only pp and pp4io */
writeoc = "pp";
/* MX24R64 supports all readoc options */
readoc = "fastread";
sck-frequency = <8000000>;
label = "MX25R64";
jedec-id = [c2 28 17];
sfdp-bfp = [
e5 20 f1 ff ff ff ff 03 44 eb 08 6b 08 3b 04 bb
ee ff ff ff ff ff 00 ff ff ff 00 ff 0c 20 0f 52
10 d8 00 ff 23 72 f5 00 82 ed 04 cc 44 83 68 44
30 b0 30 b0 f7 c4 d5 5c 00 be 29 ff f0 d0 ff ff
];
size = <67108864>;
has-dpd;
t-enter-dpd = <10000>;
t-exit-dpd = <35000>;
};
};
I am using the main.c from the ncs/zephyr/samples/drivers/spi_flash example code.
JEDEC QSPI-NOR SPI flash testing
==========================
SPI flash driver MX25R64 was not found!
If I debug it and step into "device_get_binding()" and go down to '*z_impl_device_get_binding()" it will find the device with the following details.
dev->name = "MX25R64"
dev->config = 0x15884 <flash_id>
dev->api = 0x158d4 <qspi_nor_api>
dev->data = 0x200000e4 <qspi_nor_memory_data>
However, "sys_bitfield_test_bit()", in "z_device_ready()", indicates that the device failed initialization.
I am running this code on a custom board that is known good. I have existing code using the nRF_SDK v15.3.0 that successfully uses the MX25R64 with SPI.
What am I missing to get the MX25R64 to work with dual QSPI in Zephyr?
