Re: [PATCH 2/2] wifi: rtw89: pci: enable 36-bit DMA on spacemit K3

Aurelien Jarno <[email protected]> Thu, 16 Jul 2026 23:34:11 +0200

Newsgroups	dev.linux.lists.spacemit,org.infradead.lists.linux-riscv,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci,org.kernel.vger.linux-wireless
Message-ID	<[email protected]>

On 2026-07-15 22:21, Anirudh Srinivasan wrote:
> The Spacemit K3 Pico ITX Board has a RTL8852BE pcie card behind a PCIe
> root port, but the SoC doesn't have any 32 DMA addreseses which the
> rtw89 seems to use by default. Enable 36 bit DMA ability that the driver
> has when this particular root port is detected so that the driver can
> probe on this SoC.
> 
> Signed-off-by: Anirudh Srinivasan <[email protected]>
> ---
>  drivers/net/wireless/realtek/rtw89/pci.c | 4 ++++
>  1 file changed, 4 insertions(+)

Tested-by: Aurelien Jarno <[email protected]>

Note that you probably want the following patch to get the controller to 
connect to a WiFi network:
https://lore.kernel.org/spacemit/[email protected] 

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
[email protected]                     http://aurel32.net