Felix Radensky <mailto:[EMAIL PROTECTED]> said on Tuesday, November
04, 2008 10:46 AM:
>
> If you're using Denx kernel, you should add your at24 device
> to i2c_devices[] in drivers/i2c/busses/i2c-ibm_of.c This will
> pass your device tree data to at24 driver.
I am using the Denx kernel and I see the at24 printing out in dmesg.
Here is
my latest device tree. Further, I changed the aforementioned file by
adding
the following lines as shown. The at24 driver is in i2c/chips/at24.c
But I still do not see anything obvious show up that I can open to read
and
write the eeprom ... what am I missing. I would have thought there must
be
a working example somewhere?
static struct i2c_driver_device i2c_devices[] __initdata = {
{"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
{"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
{"ricoh,rv5c386", "rtc-rs5c372", "rv5c386",},
{"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
{"dallas,ds1307", "rtc-ds1307", "ds1307",},
{"dallas,ds1337", "rtc-ds1307", "ds1337",},
{"dallas,ds1338", "rtc-ds1307", "ds1338",},
{"dallas,ds1339", "rtc-ds1307", "ds1339",},
{"dallas,ds1340", "rtc-ds1307", "ds1340",},
{"stm,m41t00", "rtc-ds1307", "m41t00"},
{"dallas,ds1374", "rtc-ds1374", "rtc-ds1374",},
{"stm,m41t80", "rtc-m41t80", "m41t80",},
{"atmel,at24c128", "at24", "at24c128",},
{"spd,at24c02", "at24", "at24c02",},
};
IIC0: [EMAIL PROTECTED] {
compatible = "ibm,iic-460ex", "ibm,iic";
reg = <0xef600700 0x00000014>;
interrupt-parent = <&UIC0>;
interrupts = <0x2 0x4>;
#address-cells = <1>;
#size-cells = <0>;
[EMAIL PROTECTED] {
compatible = "atmel,at24c128";
reg = <0x50>;
};
[EMAIL PROTECTED] {
compatible = "spd,at24c02";
reg = <0x51>;
};
[EMAIL PROTECTED] {
compatible = "atmel,at24c128";
reg = <0x52>;
};
[EMAIL PROTECTED] {
compatible = "atmel,at24c128";
reg = <0x53>;
};
_______________________________________________
Linuxppc-embedded mailing list
Linuxppc-embedded@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-embedded
