Hi All,
I am working on DaVinci DM388 processor , ipnc_rdk 3.80.00 and configuring it as I2C slave device.
How linux informs that it is now being accessed.as I2C salve ?
Should it have to generate interrupt ?
For interrupt method i have to enable software interrupts for I2C ( I2CINT2 with no 30 ) .I have a memory dump utility that gives register configuration.
I have to take dump of Interrupt controller registers but some of it's registers gives error and some are properly accessed. I named those register in logs .
Can any one help me on resolving that ? Why it gives error for that registers. ?
Interrupt controller base address is 0x4820_0000 and by memory dump utility ,it gives error for some registers as follows:
error for Revision Identification Register. 0x48200000
root@DM385_IPNC: /md 0x48200000
48200000: 000000Unhandled fault: external abort on non-linefetch (0x1018) at 0x4000504c
50 00000000 00000000 00000000 P...............
48200010: 00000001 00000001 00000000 00000000 ................
48200020: 00000000 00000000 00000000 00000000 ................
48200030: 00000000 00000000 00000000 00000000 ................
Bus error
root@DM385_IPNC:~# /md 0x48200040
Unhandled fault: external abort on non-linefetch (0x1018) at 0x4009104c
Bus error
40h INTCPS_SIR_IRQ Spurious IRQ Flag Register
44h INTCPS_SIR_FIQ Spurious FIQ Flag Register
48h INTCPS_CONTROL Control Register
4Ch INTCPS_PROTECTION Protection Mode Register
root@DM385_IPNC:~# /md 0x48200050
48200050: 00000000 00000000 00000000 00000000 ................
48200060: 00000000 ffffffc0 000000ff 00000000 ................
48200070: 00000000 00000000 00000000 00000000 ................
48200080: 00000502 efe9afef 00000000 00000000 ................
48200090: 00000000 00000000 00000000 00000000 ................
482000a0: 00000000 bffff0be 00000000 00000000 ................
482000b0: 00000000 00000000 00000000 00000000 ................
482000c0: 00000000 ffffc0b6 00000000 00000000 ................
Best regards,
Hardik Patel.
