We are designing a carrier board with TX2-4GB module with baseline R32.4.3. Here we have connected AW-CM235NF WIFI/BT combo module on sdmmc3 with SDIO interface.
So i have defined the dtsi entry like this.
sdhci@3440000 { /*added AW-CM235NF wifi support on SDMMC3*/
#address-cells = <1>;
#size-cells = <0>;
uhs-mask = <0x8>;
only-1-8-v;
status = "okay";
brcmfmac: brcmfmac@0 {
reg = <0>;
compatible = "brcm,bcm4329-fmac";
};
};
and i am getting this error in the kernel logs
Is this due to hardware issue or any dtsi configuration ?
Please compare your dts configuration with official brcm4354 case.
Hi Wayne,
Actually i took reference of this thread https://community.cypress.com/thread/58531 . Can you specify more on the official case means where i can look into for this.
By default, jetson TX2 has brcm4354 enabled on sdio.
WayneWWW:
brcm4354
Hi wayne,
Is this the entry you are talking about ?
bcm4354: bcmdhd_wlan {
compatible = "android,bcmdhd_wlan";
interrupt-parent = <&tegra_aon_gpio>;
interrupts = <TEGRA_AON_GPIO(FF, 3) 0x14>;
wlan-pwr-gpio = <&tegra_main_gpio TEGRA_MAIN_GPIO(N, 0) 0>;
fw_path = "/vendor/firmware/fw_bcmdhd_4354.bin";
nv_path = "/vendor/firmware/nvram_quill_4354.txt";
sdhci-host = <&sdmmc3>;
pwr-retry-cnt = <5>;
status = "okay";
};
Hi Wayne,
there is one pin WIFI_BT_WL_REG_ON which needs to be high so i pulled it up from hardware as per our design after that i am facing below errors:
root@localhost:/home/ubuntu# dmesg | grep mmc
Please suggest to proceed further on this.
Any suggestion will be appreciated .
Please share your full dmesg and board schematic.
Hi Wayne,
attaching the full logssdmmc_wifi_4gb.txt (66.2 KB)
And your board schematic?
Hi,
Let’s try if non-tunable modes work. Add following property in the dtsi.
uhs-mask = <0xFF>;
If it works, let’s try SDR50 mode
uhs-mask = <0x18>;
I have tried with uhs-mask 0xff and now the init errors are not coming and now facing CRC errors as below
[ 5.508553] mmc1: Data CRC error
wifi_sdio_logs.txt (67.8 KB)
with the uhs-mask 0x18 below logs are observed
[ 6.093209] mmc1: hw tuning done …
Also attaching complete dmesg logs.wifi_sdio_uhs-mask-18.txt (66.5 KB)
Please share your feedback.
The latest dmesg seems indicate the problem is on cypress firmware. Could you check if you have any missing files?
Hi,
So now SDIO is no issue as its successfully detecting.
Right now i am using built-in cypress wifi/bt drivers. I will check for other files.
I also have a latest sdk cypress-backports-v5.4.18-2020_0925-module-src which needs to be integrated in tx2 SDK.
Can you please suggest how can i backport the same on tx2?
What is that sdk? What content is inside it?
I downloaded the latest cypress package from official website is “cypress-fmac-v5.4.18-2020_0925”
cypress-backports-v5.4.18-2020_0925-module-src
Looks like it includes the kernel modules, device tree, fw and userspace tool (hostap). Do you know what does that v5.4” mean?
5.4 is the kernel version support.
This package supports upto 5.4.18 kernel version.
