[Qemu-devel] PCI with Xilinx virtex-ml507 board

[Qemu-devel] PCI with Xilinx virtex-ml507 board

[Lê Đức Tài]

[-- Attachment #1: Type: text/plain, Size: 376 bytes --]

Hi,
It seems that virtex board doesn't have a PCI bus emulation.
I have tried to create one using ppc4xx_pci_init() function but it doesn't work.
Could you help me some ideas to create PCI bus for virtex board?
Or if you have already implemented PCI for virtex (I think that PCI is necessary 
to init Ethernet), could you send me the patch?

Thank you very much,
Tai

[-- Attachment #2: Type: text/html, Size: 743 bytes --]

Re: [Qemu-devel] PCI with Xilinx virtex-ml507 board

[Edgar E. Iglesias]

[-- Attachment #1: Type: text/plain, Size: 994 bytes --]

Hi,

The emulated board and fpga config doesnt have pci. It does have a xilinx
ll-temac ethernet mac though. I have patches for that, its on my todo list
to post them. Right now im on the road with little access to my stuff. It'll
have to wait, sorry.

If you dont need a particular mac, you could try to change the dtb and qemu
to instantiate a xilinx ethlite mac which qemu upstream does emulate. I
suggest looking at the microblaze boards as reference.

Good luck,
Edgar

---
Sent from my android device
On Jul 11, 2011 5:31 AM, "Lê Đức Tài" <letai_dhqg@yahoo.com.vn> wrote:
> Hi,
> It seems that virtex board doesn't have a PCI bus emulation.
> I have tried to create one using ppc4xx_pci_init() function but it doesn't
work.
> Could you help me some ideas to create PCI bus for virtex board?
> Or if you have already implemented PCI for virtex (I think that PCI is
necessary
> to init Ethernet), could you send me the patch?
>
> Thank you very much,
> Tai

[-- Attachment #2: Type: text/html, Size: 1202 bytes --]

[Qemu-devel] Về: PCI with Xilinx virtex-ml507 board

[Lê Đức Tài]

[-- Attachment #1: Type: text/plain, Size: 1150 bytes --]

On Jul 11, 2011 15:31, "Edgar E. Iglesias" <edgar.iglesias@gmail.com> wrote:



>  On Jul 11, 2011 5:31 AM, "Lê Đức Tài" <letai_dhqg@yahoo.com.vn> wrote:
>

>  > Hi,
>  > It seems that virtex board doesn't have a PCI bus emulation.
>  > I have tried to create one using ppc4xx_pci_init() function but it doesn't 
>work.
>  > Could you help me some ideas to create PCI bus for virtex board?
>  > Or if you have already implemented PCI for virtex (I think that PCI is 
>necessary 
>
>  > to init Ethernet), could you send me the patch?
> >
>  > Thank you very much,
>  > Tai
>

>  Hi,
>  The emulated board and fpga config doesnt have pci. It does have a  xilinx 
>ll-temac ethernet mac though. I have patches for that, its on my  todo list to 
>post them. Right now im on the road with little access to  my stuff. It'll have 
>to wait, sorry.
>  If you dont need a particular mac, you could try to change the dtb  and qemu 
>to instantiate a xilinx ethlite mac which qemu upstream does  emulate. I suggest 
>looking at the microblaze boards as reference.
>  Good luck,
>  Edgar
Thank you for your suggestion,
Tai

[-- Attachment #2: Type: text/html, Size: 2023 bytes --]

Re: [Qemu-devel] PCI with Xilinx virtex-ml507 board

[Lê Đức Tài]

[-- Attachment #1: Type: text/plain, Size: 851 bytes --]

On Jul 11, 2011 15:31, "Edgar E. Iglesias" <edgar.iglesias@gmail.com> wrote:


>  Hi, 
>  The emulated board and fpga config doesnt have pci. It does have a  xilinx 
>ll-temac ethernet mac though. I have patches for that, its on my  todo list to 
>post them. Right now im on the road with little access to  my stuff. It'll have 
>to wait, sorry.
>  If you dont need a particular mac, you could try to change the dtb  and qemu 
>to instantiate a xilinx ethlite mac which qemu upstream does  emulate. I suggest 
>looking at the microblaze boards as reference.
>  Good luck,
>  Edgar
Hi Edgar,
I'm trying to create Xilinx Ethernet Lite MAC. 
So, I have two question :d.
What is the kernel driver that use for xilinx-ethlite nic?
And what should I change the dts file? (Does remove Hard Ethernet Mac?)

Please help me. Thank you.
Tai

[-- Attachment #2: Type: text/html, Size: 1784 bytes --]

Re: [Qemu-devel] PCI with Xilinx virtex-ml507 board

[Edgar E. Iglesias]

[-- Attachment #1: Type: text/plain, Size: 1519 bytes --]

Hi,

Hi the ethlite driver is this one:
http://lxr.linux.no/linux+v2.6.39/drivers/net/xilinx_emaclite.c

The easy way is probably to look at the petalogix s3adsp board dtb
distributed with qemu. Iirc, the command to make readable is dtc -I dtb -O
dts -o tree.dts tree.dtb.

It should be possible to replace the hard lltemac in your tree.dtb with the
an entry describing a soft emaclite. Then youll have to edit qemu and
instantiate the mac at the appropriate address and  connect to the
appropriate interrupt line.

Cheers
---
Sent from my android device
On Jul 13, 2011 5:19 AM, "Lê Đức Tài" <letai_dhqg@yahoo.com.vn> wrote:
> On Jul 11, 2011 15:31, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
wrote:
>
>
>> Hi,
>> The emulated board and fpga config doesnt have pci. It does have a xilinx

>>ll-temac ethernet mac though. I have patches for that, its on my todo list
to
>>post them. Right now im on the road with little access to my stuff. It'll
have
>>to wait, sorry.
>> If you dont need a particular mac, you could try to change the dtb and
qemu
>>to instantiate a xilinx ethlite mac which qemu upstream does emulate. I
suggest
>>looking at the microblaze boards as reference.
>> Good luck,
>> Edgar
> Hi Edgar,
> I'm trying to create Xilinx Ethernet Lite MAC.
> So, I have two question :d.
> What is the kernel driver that use for xilinx-ethlite nic?
> And what should I change the dts file? (Does remove Hard Ethernet Mac?)
>
> Please help me. Thank you.
> Tai

[-- Attachment #2: Type: text/html, Size: 1975 bytes --]

Re: [Qemu-devel] PCI with Xilinx virtex-ml507 board

[Lê Đức Tài]

[-- Attachment #1: Type: text/plain, Size: 771 bytes --]

On Jul 13, 2011 14:09, "Edgar E. Iglesias" <edgar.iglesias@gmail.com> wrote:


>  Hi, 
>  Hi the ethlite driver is this one:
>  http://lxr.linux.no/linux+v2.6.39/drivers/net/xilinx_emaclite.c
>  The easy way is probably to look at the petalogix s3adsp board dtb  
>distributed with qemu. Iirc, the command to make readable is dtc -I dtb  -O dts 
>-o tree.dts tree.dtb.
>  It should be possible to replace the hard lltemac in your tree.dtb  with the 
>an entry describing a soft emaclite. Then you'll have to edit  qemu and 
>instantiate the mac at the appropriate address and  connect to  the appropriate 
>interrupt line.
>  Cheers

I have created the xilinx-ethlite according your help :d.
Now I'm testing for this ethernet.
Thank you very much,
Tai

[-- Attachment #2: Type: text/html, Size: 1435 bytes --]

[Qemu-devel] ethlite mac on virtex board

[Lê Đức Tài]

[-- Attachment #1: Type: text/plain, Size: 11372 bytes --]

Hi Edgar,
I have a problem with Ethernet Lite on Virtex board as following.
Could you help me?
Thank you!

[Modify device tree - linux-2.6.37]

diff --git a/arch/powerpc/boot/dts/virtex440-ml507.dts 
b/arch/powerpc/boot/dts/virtex440-ml507.dts
index 9cf6081..acc8406 100644
--- a/arch/powerpc/boot/dts/virtex440-ml507.dts
+++ b/arch/powerpc/boot/dts/virtex440-ml507.dts
@@ -155,6 +155,18 @@
                #size-cells = <1>;
                compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
                ranges ;
+               ethernet@81000000 {
+                       compatible = "xlnx,xps-ethernetlite-1.00.a";
+                       device_type = "network";
+                       interrupt-parent = <&xps_intc_0>;
+                       interrupts = < 5 2 >;
+                       local-mac-address = [02 00 00 00 00 00];
+                       reg = <0x81000000 0x10000>;
+                       xlnx,duplex = <0x1>;
+                       xlnx,family = "spartan3adsp";
+                       xlnx,rx-ping-pong = <0x0>;
+                       xlnx,tx-ping-pong = <0x0>;
+               };
                DIP_Switches_8Bit: gpio@81460000 {
                        compatible = "xlnx,xps-gpio-1.00.a";
                        interrupt-parent = <&xps_intc_0>;


[Modify qemu - v0.15.0rc1]

diff --git a/hw/virtex_ml507.c b/hw/virtex_ml507.c
index 7bde8c7..4dea56a 100644
--- a/hw/virtex_ml507.c
+++ b/hw/virtex_ml507.c
@@ -232,6 +232,7 @@ static void virtex_init(ram_addr_t ram_size,
 
     /* 2 timers at irq 2 @ 62 Mhz.  */
     xilinx_timer_create(0x83c00000, irq[3], 2, 62 * 1000000);
+    xilinx_ethlite_create(&nd_table[0], 0x81000000, irq[5], 0, 0);
 
     if (kernel_filename) {
         uint64_t entry, low, high;


[Error when running guest machine]

zImage starting: loaded at 0x01200000 (sp: 0x0153cfb0)
Allocating 0x4bbe68 bytes for kernel ...
gunzipping (0x00000000 <- 0x0120e000:0x013cb92a)...done 0x39b4f0 bytes
Attached initrd image at 0x013cc000-0x0153bf20
initrd head: 0x1f8b0808

Linux/PowerPC load: console=ttyS0                    
Finalizing device tree... flat tree at 0x1549300
[    0.000000] Using Xilinx Virtex440 machine description
[    0.000000] Linux version 2.6.37+ (taild@debian-ttec) (gcc version 4.3.5 
(Debian 4.3.5-4) ) #35 PREEMPT Wed Aug 3 11:30:45 ICT 2011
[    0.000000] Found initrd at 0xc13cc000:0xc153bf20
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000000 -> 0x00010000
[    0.000000]   Normal   empty
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[1] active PFN ranges
[    0.000000]     0: 0x00000000 -> 0x00010000
[    0.000000] MMU: Allocated 1088 bytes of context maps for 255 contexts
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total 
pages: 65024
[    0.000000] Kernel command line: console=ttyS0
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Memory: 253468k/262144k available (3520k kernel code, 8676k 
reserved, 176k data, 1151k bss, 160k init)
[    0.000000] Kernel virtual memory layout:
[    0.000000]   * 0xfffdf000..0xfffff000  : fixmap
[    0.000000]   * 0xfde00000..0xfe000000  : consistent mem
[    0.000000]   * 0xfde00000..0xfde00000  : early ioremap
[    0.000000]   * 0xd1000000..0xfde00000  : vmalloc & ioremap
[    0.000000] Preemptable hierarchical RCU implementation.
[    0.000000]     RCU-based detection of stalled CPUs is disabled.
[    0.000000]     Verbose stalled-CPUs detection is disabled.
[    0.000000] NR_IRQS:512
[    0.000000] clocksource: timebase mult[a00000] shift[22] registered
[    0.000000] Console: colour dummy device 80x25
[    0.016523] pid_max: default: 32768 minimum: 301
[    0.017972] Mount-cache hash table entries: 512
[    0.086498] NET: Registered protocol family 16
[    0.104131] PCI: Probing PCI hardware
[    0.131515] bio: create slab <bio-0> at 0
[    0.136472] XGpio: /plb@0/gpio@81460000: registered
[    0.137461] XGpio: /plb@0/gpio@81400000: registered
[    0.138130] XGpio: /plb@0/gpio@81420000: registered
[    0.138710] XGpio: /plb@0/gpio@81440000: registered
[    0.141923] vgaarb: loaded
[    0.155370] Switching to clocksource timebase
[    0.203063] NET: Registered protocol family 2
[    0.207284] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.214170] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[    0.214492] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[    0.215635] TCP: Hash tables configured (established 8192 bind 8192)
[    0.215961] TCP reno registered
[    0.216157] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.216482] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.218590] NET: Registered protocol family 1
[    0.222081] RPC: Registered udp transport module.
[    0.222205] RPC: Registered tcp transport module.
[    0.222230] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.232197] Trying to unpack rootfs image as initramfs...
[    0.250903] rootfs image is not initramfs (no cpio magic); looks like an 
initrd
[    0.270685] Freeing initrd memory: 1471k freed
[    0.302829] ROMFS MTD (C) 2007 Red Hat, Inc.
[    0.304074] msgmni has been set to 499
[    0.310585] io scheduler noop registered
[    0.310694] io scheduler deadline registered
[    0.310970] io scheduler cfq registered (default)
[    0.647100] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    0.661291] 83e00000.serial: ttyS0 at MMIO 0x83e01003 (irq = 20) is a 16550
[    0.674631] console [ttyS0] enabled
[    0.698182] brd: module loaded
[    0.709066] loop: module loaded
[    0.714784] of:xsysace 83600000.sysace: xsysace: error initializing device at 
0x83600000
[    0.715185] of:xsysace 83600000.sysace: could not initialize device, err=-12
[    0.715579] of:xsysace: probe of 83600000.sysace failed with error -12
[    0.716847] Xilinx SystemACE device driver, major=254
[    0.718539] of:xilinx_emaclite 81000000.ethernet: Device Tree Probing
[    0.719785] of:xilinx_emaclite 81000000.ethernet: error registering MDIO bus
[    0.720391] of:xilinx_emaclite 81000000.ethernet: MAC address is now 
02:00:00:00:00:00
[    0.723575] of:xilinx_emaclite 81000000.ethernet: Xilinx EmacLite at 
0x81000000 mapped to 0xD10A0000, irq=16
[    0.728528] mice: PS/2 mouse device common for all mice
[    0.731065] i2c /dev entries driver
[    0.732564] Device Tree Probing 'i2c'
[    0.737730] xilinx-iic #0 at 0x81600000 mapped to 0xD10C0000, irq=18
[    0.741476] TCP cubic registered
[    0.741646] NET: Registered protocol family 17
[    0.761763] RAMDISK: gzip image found at block 0
[    1.009852] VFS: Mounted root (ext2 filesystem) readonly on device 1:0.
[    1.011201] Freeing unused kernel memory: 160k init
/etc/mtab: cannot create
root:~> ### Application running ...

root:~> ifconfig eth0 10.116.17.22 netmask 255.255.255.224
root:~> ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 02:00:00:00:00:00  
          inet addr:10.116.17.22  Bcast:10.116.17.31  Mask:255.255.255.224
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:16 Memory:81000000-8100ffff 

root:~> ping -c 3 10.116.17.1
PING 10.116.17.1 (10.116.17.1): 56 data bytes

--- 10.116.17.1 ping statistics ---
3 packets transmitted, 0 packets received, 100% packet loss
root:~>     
root:~> [  144.880243] NETDEV WATCHDOG: eth0 (of:xilinx_emaclite): transmit 
queue 0 timed out
[  144.881850] Oops: Exception in kernel mode, sig: 4 [#1]
[  144.882092] PREEMPT Xilinx Virtex440
[  144.882315] last sysfs file: 
[  144.882654] Modules linked in:
[  144.883024] NIP: c0223464 LR: c0223464 CTR: c01b79b4
[  144.883397] REGS: cfff5e30 TRAP: 0700   Not tainted  (2.6.37+)
[  144.883631] MSR: 00029000 <EE,ME,CE>  CR: 44000024  XER: 20000000
[  144.884286] TASK = c0373350[0] 'swapper' THREAD: c0396000
[  144.884564] GPR00: c0223464 cfff5ee0 c0373350 0000005c 00001a6c ffffffff 
c01b84c4 00004000 

[  144.885167] GPR08: c049e7bc 00000101 00003fff cfff4000 84000024 00000000 
00000000 00000000 

[  144.885708] GPR16: c0303e54 00000001 c04a2900 c04a372c 00200200 c04a352c 
00000000 cfff4000 

[  144.886181] GPR24: 00000002 ffffffff 00000000 cfff403c cf85e000 c04b0000 
c0375eec 00000000 

[  144.887928] NIP [c0223464] dev_watchdog+0x30c/0x328
[  144.888141] LR [c0223464] dev_watchdog+0x30c/0x328
[  144.888365] Call Trace:
[  144.888701] [cfff5ee0] [c0223464] dev_watchdog+0x30c/0x328 (unreliable)
[  144.889069] [cfff5f50] [c0040510] run_timer_softirq+0x11c/0x23c
[  144.889292] [cfff5fb0] [c0039af8] __do_softirq+0xb4/0x164
[  144.889492] [cfff5ff0] [c000c174] call_do_softirq+0x14/0x24
[  144.889707] [c0397e80] [c0003fcc] do_softirq+0x80/0x8c
[  144.889901] [c0397ea0] [c0039518] irq_exit+0x54/0x6c
[  144.890092] [c0397eb0] [c0009668] timer_interrupt+0xa4/0xfc
[  144.890298] [c0397ec0] [c000cdf0] ret_from_except+0x0/0x18
[  144.890525] --- Exception: 901 at ppc44x_idle+0x10/0x20
[  144.890545]     LR = cpu_idle+0xd0/0xe0
[  144.890859] [c0397f80] [c0007490] cpu_idle+0x74/0xe0 (unreliable)
[  144.891087] [c0397fa0] [c00018c8] rest_init+0x8c/0xa4
[  144.891361] [c0397fc0] [c03487d0] start_kernel+0x260/0x2b4
[  144.891667] [c0397ff0] [c0000074] _start+0x74/0xb8
[  144.891894] Instruction dump:
[  144.892201] 3bc35eec 4bfffe90 38810008 7f83e378 38a00040 4bfe89f1 7fe6fb78 
7c651b78 

[  144.892568] 3c60c032 7f84e378 3863ce4c 4808b67d <0fe00000> 38000001 981d6a04 
4bffff90 

[  144.893734] Kernel panic - not syncing: Fatal exception in interrupt
[  144.893964] Call Trace:
[  144.894070] [cfff5c80] [c00063a8] show_stack+0x48/0x168 (unreliable)
[  144.894283] [cfff5cc0] [c02ae9a4] panic+0xac/0x1e4
[  144.894445] [cfff5d10] [c0009f20] die+0x1bc/0x1d0
[  144.894604] [cfff5d30] [c000a174] _exception+0xfc/0x118
[  144.894774] [cfff5e20] [c000cda4] ret_from_except_full+0x0/0x4c
[  144.894975] --- Exception: 700 at dev_watchdog+0x30c/0x328
[  144.894988]     LR = dev_watchdog+0x30c/0x328
[  144.895266] [cfff5f50] [c0040510] run_timer_softirq+0x11c/0x23c
[  144.895456] [cfff5fb0] [c0039af8] __do_softirq+0xb4/0x164
[  144.895631] [cfff5ff0] [c000c174] call_do_softirq+0x14/0x24
[  144.895823] [c0397e80] [c0003fcc] do_softirq+0x80/0x8c
[  144.896136] [c0397ea0] [c0039518] irq_exit+0x54/0x6c
[  144.896307] [c0397eb0] [c0009668] timer_interrupt+0xa4/0xfc
[  144.896486] [c0397ec0] [c000cdf0] ret_from_except+0x0/0x18
[  144.896669] --- Exception: 901 at ppc44x_idle+0x10/0x20
[  144.896682]     LR = cpu_idle+0xd0/0xe0
[  144.896938] [c0397f80] [c0007490] cpu_idle+0x74/0xe0 (unreliable)
[  144.897137] [c0397fa0] [c00018c8] rest_init+0x8c/0xa4
[  144.897305] [c0397fc0] [c03487d0] start_kernel+0x260/0x2b4
[  144.897482] [c0397ff0] [c0000074] _start+0x74/0xb8
[  144.897929] Rebooting in 180 seconds..

[-- Attachment #2: Type: text/html, Size: 16209 bytes --]

Re: [Qemu-devel] ethlite mac on virtex board

[Lê Đức Tài]

[-- Attachment #1: Type: text/plain, Size: 444 bytes --]

On Aug 08, 2011 15:13, "Lê Đức Tài" <letai_dhqg@yahoo.com.vn> wrote:



________________________________


>  Hi Edgar,
>  I have a problem with Ethernet Lite on Virtex board as following.
>  Could you help me?
>  Thank you!


________________________________


Hi,
I have just successful configured the Ethernet Lite :).
The reason of my bug is interrupt controller of virtex different with  
microblaze board.

Tai

[-- Attachment #2: Type: text/html, Size: 1228 bytes --]

Re: [Qemu-devel] ethlite mac on virtex board

[Edgar E. Iglesias]

On Thu, Aug 04, 2011 at 05:31:37PM +0800, Lê Đức Tài wrote:
> On Aug 08, 2011 15:13, "Lê Đức Tài" <letai_dhqg@yahoo.com.vn> wrote:
> 
> 
> 
> ________________________________
> 
> 
> >  Hi Edgar,
> >  I have a problem with Ethernet Lite on Virtex board as following.
> >  Could you help me?
> >  Thank you!
> 
> 
> ________________________________
> 
> 
> Hi,
> I have just successful configured the Ethernet Lite :).
> The reason of my bug is interrupt controller of virtex different with  
> microblaze board.

Sweet. Would be nice if you could post a working example to the list as
reference. Please include patch to QEMU and patch to the dts, if
possible.

Cheers