Thanks Peter for your kind response. I'm not clear what you're trying to do here; could you try rephrasing your question? Are you just trying to use the existing working QEMU emulation of a Cortex-A15 board and ethernet controller, or to do something else?
To be very specific I am trying to emulate Ethernet controller of KeyStone 2 device from TI http://processors.wiki.ti.com/index.php/MCSDK_User_Guide_for_KeyStone_II It is based on CortexA-15 Processor series. So I thought I can use vexpress_defconfig and can call my Emulated Ethernet controller instead of LAN9118 from vexpress.c. After that I will place my Emulated Ethernet controller code(which haven't started) inside hw/net . Is the right way to go forward? Thanks Rajan On Thu, Jan 23, 2014 at 11:42 AM, Peter Maydell <peter.mayd...@linaro.org>wrote: > On 23 January 2014 19:28, rajan pathak <rajanpath...@gmail.com> wrote: > > I have compiled the kernel using versatile_defconfig where I can see > > CONFIG_SMC91X,So I guess it uses SMSC 91C111 as its Ethernet controller. > > > I can see call to this smc91c111_init(nd, 0x10010000, sic[25]); > function is > > made inside hw/arm/versatilepb.c which triggers the initialization of > > emulated SMSC Ethernet controller in hw/net/smc91c111.c. > > versatilepb is not a Cortex-A15 board, so neither > the QEMU code for it nor the kernel configuration > for it are relevant here. > > > I am looking to emulate Ethernet controller based on > > Cortex-A15 platform,so for > > Do I need to use vexpress_defconfig instead of versatile_defconfig? > > > > If I have to use vexpress what would initializtion point of my emulated > > Ethernet controller based Cortex-A15 platform? > > I'm not clear what you're trying to do here; could > you try rephrasing your question? Are you just trying > to use the existing working QEMU emulation of a > Cortex-A15 board and ethernet controller, or to do > something else? > > > Would be inside vexpress_common_init() of vexpress.c > > > > /* 0x4e000000 LAN9118 Ethernet */ > > if (nd_table[0].used) { > > lan9118_init(&nd_table[0], map[VE_ETHERNET], pic[15]); > > } > > > > Could anyone please confirm this above understanding of mine? > > You need to build a kernel configured for the board > model you want to use. In QEMU at the moment the > board models which support the Cortex-A15 are > 'vexpress-a15' and the virtual-machine-only 'virt'. > The former uses a LAN9118 and the latter can > support a virtio-net networking device plugging > into the virtio-mmio transport. > > thanks > -- PMM >
