[Letux-kernel] MIPS: CI20: DTS: Add IW8103 Wifi + bluetooth

[H. Nikolaus Schaller]

Hi Alexandre,
I have seen your patch in v5.5-rc1 and now I am
trying to make it work.

I have added

CONFIG_BT_HCIUART_SERDEV=y
CONFIG_BT_HCIUART_BCM=y
CONFIG_SERIAL_DEV_BUS=m

to my defconfig and the driver for serdev and bluetooth
seems to be loaded:

root at letux:~# lsmod
Module                  Size  Used by
hci_uart               32259  3
btbcm                   8796  1 hci_uart
serdev                 10315  1 hci_uart
bluetooth             366991  11 hci_uart,btbcm
ecdh_generic            3419  1 bluetooth
ecc                    20886  1 ecdh_generic
g_ether                 5373  0
usb_f_rndis            17648  1 g_ether
u_ether                14794  2 g_ether,usb_f_rndis
libcomposite           48158  2 g_ether,usb_f_rndis
configfs               33740  3 usb_f_rndis,libcomposite
drm_kms_helper        190773  0
cfbfillrect             3316  1 drm_kms_helper
syscopyarea             2754  1 drm_kms_helper
cfbimgblt               2140  1 drm_kms_helper
sysfillrect             3338  1 drm_kms_helper
sysimgblt               2140  1 drm_kms_helper
fb_sys_fops             1803  1 drm_kms_helper
cfbcopyarea             2786  1 drm_kms_helper
drm                   481117  1 drm_kms_helper
drm_panel_orientation_quirks      942  1 drm
gpio_ir_recv            2798  0
dm9000                 19193  0
mii                     7162  1 dm9000
ipv6                  399467  16
autofs4                28427  9
root at letux:~#

But there is no activity (not even a warning
that firmware download fails) from Bluetooth.

brcmfmac for WiFi is not automatically loaded.
Maybe because the SDIO device is not found.

What should I do to make both working?

BR and thanks,
Nikolaus


PS: I have a strange error during boot which
may also be the reason of failure (no interrupt = no
working interface):

[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 222
[    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x0 to VIRQ8 mapping (rc=-19)
[    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x1 to VIRQ9 mapping (rc=-19)
[    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x2 to VIRQ10 mapping (rc=-19)
[    0.000000] irq: :interrupt-controller at 10001000 didn't like hwirq-0x3 to VIRQ11 mapping (rc=-19)
...