On Donnerstag, 25. Mai 2017 16:21:23 CET akolli@xxxxxxxxxxxxxxxx wrote:
> From: Anilkumar Kolli <akolli@xxxxxxxxxxxxxxxx>
>
> QCA99X0, QCA9888, QCA9984 supports calibration data in
> either OTP or DT/pre-cal file. Current ath10k supports
> Calibration data from OTP only.
>
> If caldata is loaded from DT/pre-cal file, fetching board id
> and applying calibration parameters like tx power gets failed.
>
> error log:
> [ 15.733663] ath10k_pci 0000:01:00.0: failed to fetch board file: -2
> [ 15.741474] ath10k_pci 0000:01:00.0: could not probe fw (-2)
>
> This patch adds calibration data support from DT/pre-cal
> file. Below parameters are used to get board id and
> applying calibration parameters from cal data.
>
> EEPROM[OTP] FLASH[DT/pre-cal file]
> Cal param 0x700 0x10000
> Board id 0x10 0x8000
>
> Tested on QCA9888 with pre-cal file.
>
> Signed-off-by: Anilkumar Kolli <akolli@xxxxxxxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath10k/bmi.h | 2 ++
> drivers/net/wireless/ath/ath10k/core.c | 16 +++++++++++++---
> 2 files changed, 15 insertions(+), 3 deletions(-)
Just tried this on an QCA9984 which doesn't seem to have the calibration data in the PCI EEPROM.
[ 71.728929] ath10k_pci 0000:01:00.0: qca9984/qca9994 hw1.0 target 0x01000000 chip_id 0x00000000 sub 168c:cafe
[ 71.732926] ath10k_pci 0000:01:00.0: kconfig debug 1 debugfs 1 tracing 0 dfs 1 testmode 1
[ 71.752282] ath10k_pci 0000:01:00.0: firmware ver 10.4-ct-9984-fW-009-dfa0083 api 5 features peer-flow-ctrl crc32 7198d117
[ 73.805730] ath10k_pci 0000:01:00.0: unable to read from the device
[ 73.805769] ath10k_pci 0000:01:00.0: could not execute otp for board id check: -110
It works when I use the pre-cal data as calibration data. The checksum in the
pre-cal seems to be correct. Also the pre-cal data from 0:ART for the 2.4GHz
and 5GHz QCA4019 seem to work perfectly fine.
Anything which I could have missed or what I could test? Btw. I've also tested
the non-ct firmware (aka the official one from QCA).
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