I am creating a custom board with an W25Q128JVPIQTR external flash drive using SPI with a nrf5340. The pins are:
- P0.08 - SD_CLK
- P0.09 - SD_MOSI
- P0.10 - SD_MISO
- P0.13 - SD_CS
- P0.14 - SD_WP
- P0.15 - SD_RST
What do I put in the pinctrl.dtsi file and what do I put in the dts file?
I see this for the mx25r64 on the nRF5340 DK in the pinctrl.dtsi file:
qspi_default: qspi_default {
group1 {
psels = <NRF_PSEL(QSPI_SCK, 0, 17)>,
<NRF_PSEL(QSPI_IO0, 0, 13)>,
<NRF_PSEL(QSPI_IO1, 0, 14)>,
<NRF_PSEL(QSPI_IO2, 0, 15)>,
<NRF_PSEL(QSPI_IO3, 0, 16)>,
<NRF_PSEL(QSPI_CSN, 0, 18)>;
nordic,drive-mode = <NRF_DRIVE_H0H1>;
};
};
qspi_sleep: qspi_sleep {
group1 {
psels = <NRF_PSEL(QSPI_SCK, 0, 17)>,
<NRF_PSEL(QSPI_IO0, 0, 13)>,
<NRF_PSEL(QSPI_IO1, 0, 14)>,
<NRF_PSEL(QSPI_IO2, 0, 15)>,
<NRF_PSEL(QSPI_IO3, 0, 16)>;
low-power-enable;
};
group2 {
psels = <NRF_PSEL(QSPI_CSN, 0, 18)>;
low-power-enable;
bias-pull-up;
};
};
And this in the common.dtsi:
&qspi {
status = "okay";
pinctrl-0 = <&qspi_default>;
pinctrl-1 = <&qspi_sleep>;
pinctrl-names = "default", "sleep";
mx25r64: mx25r6435f@0 {
compatible = "nordic,qspi-nor";
reg = <0>;
/* MX25R64 supports only pp and pp4io */
writeoc = "pp4io";
/* MX25R64 supports all readoc options */
readoc = "read4io";
sck-frequency = <8000000>;
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>;
};
};
How do I change them for the W25Q128JVPIQTR?
