Yes I have the file:
 
	root@orangepi5-plus:/boot/dtb/rockchip/overlay# ls -l rk3588-spi4-m0-cs1-spidev.dtbo 
	-rwxr-xr-x 1 root root 598 Dec  1 14:04 rk3588-spi4-m0-cs1-spidev.dtbo
 
	 
 
	After reboot, I have the device:
 
	root@orangepi5-plus:~# ls -l /dev/spidev4.1 
	crw------- 1 root root 153, 0 Dec  4 22:39 /dev/spidev4.1
 
	 
 
	So I'm using this code
 
	` ` `
 
	import spidev 
	import time
 
	spi = spidev.SpiDev(4,1) 
	spi.max_speed_hz= 120000
 
	 
	while True: 
	    print(spi.readbytes(1)) 
	    time.sleep(0.1)
 
	` ` `
 
	 
 
	And the only thing I have is 255, like nothing is read from the chip.
 
	 
 
	more info:
 
	errors in the dmesg:
 
	[    5.219022] rockchip-pinctrl pinctrl: pin gpio1-17 already requested by fecb0000.spi; cannot claim for feab0000.i2c 
	[    5.219027] rockchip-pinctrl pinctrl: pin-49 (feab0000.i2c) status -22 
	[    5.219031] rockchip-pinctrl pinctrl: could not request pin 49 (gpio1-17) from group i2c3m0-xfer  on device rockchip-pinctrl 
	[    5.219034] rk3x-i2c feab0000.i2c: Error applying setting, reverse things back
 
	[    5.466121] arm-scmi firmware:scmi: Failed. SCMI protocol 17 not active.
 
	[    5.480350] rockchip-pinctrl pinctrl: pin gpio1-18 already requested by fecb0000.spi; cannot claim for 7-0011 
	[    5.480358] rockchip-pinctrl pinctrl: pin-50 (7-0011) status -22 
	[    5.480365] rockchip-pinctrl pinctrl: could not request pin 50 (gpio1-18) from group i2s0-mclk  on device rockchip-pinctrl 
	[    5.480371] ES8323 7-0011: Error applying setting, reverse things back
 
	[    5.535846] rockchip-pinctrl pinctrl: pin gpio1-17 already requested by fecb0000.spi; cannot claim for feab0000.i2c 
	[    5.535856] rockchip-pinctrl pinctrl: pin-49 (feab0000.i2c) status -22 
	[    5.535866] rockchip-pinctrl pinctrl: could not request pin 49 (gpio1-17) from group i2c3m0-xfer  on device rockchip-pinctrl 
	[    5.535873] rk3x-i2c feab0000.i2c: Error applying setting, reverse things back
 
	 
 
	I don't know if it's important but I'm booting from the MTD device.
 
	 
 
	I tried with the wiringOP librairy, I have the same result (it's reading value of 255).
 
	The gpio readall command returns an error too:
 
	wiringPiSetup: mmap (PWM) failed: Operation not permitted
 
	 
 
	root@orangepi5-plus:~/wiringOP/examples# ./spidev_test -v -D /dev/spidev4.1 
	spi mode: 0x0 
	bits per word: 8 
	max speed: 500000 Hz (500 KHz) 
	TX | FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F0 0D  |......@.........................| 
	RX | FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  |................................|