Hi Albert,
Thanks for your reply.
-----Original Message----- From: Albert ARIBAUD [mailto:albert.u.boot@aribaud.net] Sent: Monday, July 29, 2013 10:27 PM To: Sharma Bhupesh-B45370 Cc: 'u-boot@lists.denx.de' Subject: Re: [U-Boot] Query: Ethernet switch support
Hi Sharma,
On Mon, 29 Jul 2013 15:33:39 +0000, Sharma Bhupesh-B45370 B45370@freescale.com wrote:
Hi List,
I am trying to add support of a Vitesse L2 switch in u-boot (in
unmanaged configuration).
I was analyzing whether advanced features like flow control, link-aggregation etc are required to be supported for a L2 switch
working in a u-boot bootloader level.
My point-of-view is that the L2 switch, should support only bare-minimum tftp of images, ping to other ethernet entities, bootp .. type of commands on u-boot and as such the L2 switch u-boot driver doesn't need to address flow-control and other such advanced features (probably of interest for a Linux device driver).
But, I am not sure about the design approaches used to support previous switch modules in u-boot.
Also I had a query whether there is a common switch framework in-place/under-consideration in u-boot, similar to what is already
present in OpenWrt code:
https://dev.openwrt.org/browser/trunk/package/boot/uboot-lantiq/patche s/0019-net-switchlib-add-framework-for-ethernet-switch-driv.patch?rev= 35292
Would porting this to u-boot make sense to have a common framework for ethernet switch in-place?
Can you please let me know your views on the same and point me to any reference switch drivers that support these features.
There is some support for switches in U-Boot (e.g. mv88e61xx) but no framework that I know of; and I suspect what is expected from the switch in U-Boot is that it does not hamper Ethernet operations, nothing more. for mv88e61xx, this is done through a fixed configuration.
In my use-case also the L2 switch is supposed to be configured via a fixed configuration (setting up the switch in an unmanaged configuration).
I will try to have a look the mv88e61xx example and then formulate something on similar lines.
Regards, Bhupesh