8.2.1 SD Express Board

Before performing the boot-up operation, ensure that the ATWILC1000 SD Express Board is connected in the SD slot (J24) of the SAMA5D4 Xplained Board (see the following figure).

Figure 8-1. SAMA5D4 SD Connection
The Secure Digital Input/Output (SDIO) Express card is recognized during boot-up with the following lines:
mmc0: new high speed SDIO card at address 0001

Use the following commands to load the ATWILC1000 module SDIO driver:

Welcome to Buildroot
buildroot login: root
# modprobe wilc-sdio
Registering wifi device
Max scan ids= 10,Max scan IE len= 1000,Signal Type= 1,Interface Modes= 844
Initializing Locks ...
wilc_sdio mmc0:0001:1: Driver Initializing success
# wilc_sdio mmc0:0001:1 wlan0: ERR [wilc_send_config_pkt:1750] Set Timed out
wilc_sdio mmc0:0001:1 wlan0: Failed to set driver handler
wilc_sdio mmc0:0001:1 wlan0: INFO [wilc_netdev_cleanup]Unregistering netdev 54a149ae
De-Initializing Locks
Freeing wiphy
Module_exit Done.
at_pwr_dev: deinit
at_pwr_dev: unregistered
mmc0: card 0001 removed
mmc0: new high speed SDIO card at address 0001
Registering wifi device
Max scan ids= 10,Max scan IE len= 1000,Signal Type= 1,Interface Modes= 844
Initializing Locks ...
wilc_sdio mmc0:0001:1: Driver Initializing success