On Fri, May 24, 2024 at 06:19:55PM +0200, Jerome Forissier wrote: > Prepare the introduction of the lwIP (lightweight IP) TCP/IP stack by > adding a new net-lwip/ directory and the NET_LWIP symbol. At this > point, enabling NET_LWIP simply disables NET. Subsequent commits will > introduce the lwIP code, re-work the NETDEVICE integration and port > some of the NET commands and features to lwIP. > > SPL_NET cannot be enabled when NET_LWIP=y. SPL_NET pulls some symbols > that are part of NET (such as arp_init(), arp_timeout_check(), > arp_receive(), net_arp_wait_packet_ip()). lwIP support in SPL may be > added later. > > Similarly, DFU_TFTP is not compatible with NET_LWIP because it depends > on net_loop(), tftp_timeout_ms, tftp_timeout_count_max. Let's add a > dependency on !NET_LWIP for now. > > Signed-off-by: Jerome Forissier <jerome.foriss...@linaro.org> [snip] > diff --git a/Kconfig b/Kconfig > index 82df59f176e..758256ab121 100644 > --- a/Kconfig > +++ b/Kconfig > @@ -747,6 +747,8 @@ source "env/Kconfig" > > source "net/Kconfig" > > +source "net-lwip/Kconfig" > + > source "drivers/Kconfig" > > source "fs/Kconfig"
I think we need to instead rework this to a choice statement instead so that in the end we have something like: choice "Networking stack" config NO_NET bool "No networking support" config NET bool "Legacy U-Boot networking stack" config NET_LWIP bool "Use lwIP for networking stack" if NET_LEGACY source "net/Kconfig" endif if NET_LWIP source "net-lwip/Kconfig" endif And then SPL_NET still depends on !NET_LWIP for now and we sort out the problems with different networking stacks in SPL vs full U-Boot later on. -- Tom
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