Hello,
I am using the factory kernel and .dtb on the ls1021a-iot board and I am unable to access the ST 64KB eeprom from i2c interface.
I see DTS entries on i2c0 but the ST device and address 51H are not listed.
based on what i read in the driver documentation I added
a child to the i2c0 node for the eeprom and regenerated the DTB.
eeprom@51{
compatability="st,24512";
reg=<0x51>;
pagesize=128;
};
But this did not help. I get an error returned when when I try and read the device.
but i2cdetect seems to see it,
eval1:/home/wanderson# i2cdetect -r 0
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0 using read byte commands.
I will probe address range 0x03-0x77.
Continue? [Y/n] y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- 1c -- -- --
20: -- -- -- -- -- -- -- -- -- -- UU -- -- -- -- --
30: -- -- -- -- -- 35 -- -- -- 39 -- -- -- 3d -- --
40: -- -- -- -- UU UU -- -- 48 -- -- -- UU -- -- --
50: -- 51 -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: 60 -- -- -- -- -- -- -- -- 69 -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
Any suggestions
