#16900: lantiq: vgv7519 - pci don't work
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Reporter: dpeddi | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Barrier Breaker (trunk)
Component: packages | Version: Trunk
Keywords: |
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From disassembly this router seems to have a ralink pci wifi card.
- pci is disabled for xrx200
I've enabled it
root@OpenWrt:/# dmesg | grep PCI
[ 0.084000] PCI host bridge /fpi@10000000/pci@E105400 ranges:
[ 0.124000] PCI host bridge to bus 0000:00
[ 0.196000] PCI: CLS 0 bytes, default 32
no pci devices is probed:
0x0=ltq_r32(0xb7000800)
0x0=ltq_r32(0xb7001000)
0x0=ltq_r32(0xb7001800)
0x0=ltq_r32(0xb7002000)
0x0=ltq_r32(0xb7002800)
0x0=ltq_r32(0xb7003000)
0x0=ltq_r32(0xb7003800)
0x0=ltq_r32(0xb7005000)
0x0=ltq_r32(0xb7005800)
0x0=ltq_r32(0xb7006000)
0x0=ltq_r32(0xb7007000)
0x0=ltq_r32(0xb7007800)
So I'm going to look at differences between openwrt and original binary
blob:
CGU:
From disassembly it seems is writtend to 0xBF103038 the value 0xc0200000
while openwrt write ltq_w32(0xc0000000,0xbf103038)
0x200000 seems to be CONFIG_IFX_PCI_CLOCK_DELAY_TENTH_NANO_SECOND
actually dts specify 0 for lantiq,delay-hi/lantiq,delay-lo but it seems
these devicetree bindings are not implemented.
then pci-lantiq.c seems to be missing following
ltq_pci_w32(ltq_pci_r32(0x0050) | 0x80000000,0x0050);
ltq_pci_w32(ltq_pci_r32(0x0054) | 0x80000000,0x0054);
ltq_pci_w32(ltq_pci_r32(0x0058) | 0x80000000,0x0058);
Why IFX_PCI_BAR14MASK IFX_PCI_BAR15MASK IFX_PCI_BAR16MASK are not defined
in pci-lantiq.c?
then it seems that irq for pci is 49. Do you think it might be possible or
I misinterpreted the disassembled code?
--
Ticket URL: <https://dev.openwrt.org/ticket/16900>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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