QCA8994 booting failed

[K.Mani]

I'm using Annapurna board(Alpine soc V1) on kernel-linux-3.10.20 openWRT.
The board has two QCA9984 wlan boards(2.4 & 5 Ghz). I downloaded the
firmware files from net.
Used, insmod ath10k_core.ko skip_otp=1 also tried without skip_otp param

The wlan 5.0Ghz board bootsup & connects to ssid, pings perfectly.
But the 2.4Ghz board fails to bootup, stating "failed to fetch board file".

[  209.550433] ath10k_pci 0001:01:00.0: bmi lz stream start address 0x0
[  209.550669] ath10k_pci 0001:01:00.0: bmi execute address 0x1234 param 0x10
[  210.942841] ath10k_pci 0001:01:00.0: bmi execute result 0x1000
[  210.942848] ath10k_pci 0001:01:00.0: boot get otp board id result
0x00001000 board_id 4 chip_id 0
[  210.942856] ath10k_pci 0001:01:00.0: boot using board name
'bus=pci,bmi-chip-id=0,bmi-board-id=4'
[  210.942930] ath10k_pci 0001:01:00.0: board name
[  210.942938] ath10k_pci 0001:01:00.0: 00000000: 62 75 73 3d 70 63 69
2c 62 6d 69 2d 63 68 69 70  bus=pci,bmi-chip
[  210.942944] ath10k_pci 0001:01:00.0: 00000010: 2d 69 64 3d 30 2c 62
6d 69 2d 62 6f 61 72 64 2d  -id=0,bmi-board-
[  210.942950] ath10k_pci 0001:01:00.0: 00000020: 69 64 3d 31
                            id=1
[  210.942957] ath10k_pci 0001:01:00.0: failed to fetch board data for
bus=pci,bmi-chip-id=0,bmi-board-id=4 from
ath10k/QCA9984/hw1.0/board-2.n
[  271.089644] ath10k_pci 0001:01:00.0: failed to fetch board data
[  271.095555] ath10k_pci 0001:01:00.0: failed to fetch board file: -2

One difference I found from the bootlogs
For 5.0Ghz log shows, bmi execute result 0x400
But 2.4Ghz log shows, bmi execute result 0x1000
Could this be the issue, if so how to fix it?

Help needed.

Thanks
Mani