Commit Graph

3 Commits

Author SHA1 Message Date
Koen Vandeputte
84acff2865 cns3xxx: fix mpcore watchdog
The original implementation loaded the count register with (wrong) semi-
random values due to its implemenation nature.

If the wrongly calulated value was below the kickrate,
the WD was triggered and rebooted the system.

Rework this, partly based on upstream patches, to dynamically fetch the
current clockrate and calculate the proper offset for the WD countdown
register.

Before:

[  143.800000] count val: 27219720
[  148.820000] count val: 50623201
[  153.830000] count val: 96425250
[  158.830000] count val: 89735401
[  163.840000] count val: 4756110

After:

[    0.700000] MPCore WD init. clockrate: 299984500 prescaler: 256
countrate: 1171814 timeout: 60s
[  358.530000] count val: 35154751
[  363.540000] count val: 35154750
[  368.540000] count val: 35154751
[  373.550000] count val: 35154750

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-04-12 12:13:15 +02:00
Felix Fietkau
73ea3c3f9c cns3xxx: add back watchdog support
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-02-11 15:36:35 +01:00
Koen Vandeputte
1db4135e32 cns3xxx: add preliminary 4.9 support
Adds preliminary kernel 4.9 support for this target.

- Refreshed/Updated all patches

Added 3 new patches:
- 093 --> Add virtual PCI MMIO mapping
- 230 --> Remove deprecated code
- 240 --> Rework AT24 eeprom code to use the new NVMEM API

Compiled & tested on cns3xxx (gw2388)

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-02-10 11:05:57 +01:00