Michael Buesch wrote:
On Thursday 03 July 2008 18:30:18 Felipe Maya wrote:
Hi, I have applied this patch and i tested on a wl500gpv2 (BCM5354). The
following part disable the ethernet device. If this part of the patch is
restored the device work ok.
Well, I would say your architecture is pretty broken then.
This patch replaces an incorrect manual DMA mask setting by
a call to the official API.
Please report this to your archtitecture maintainer.
This also breaks at least b44 on my wl500gpv1.
with wireless-testing rc9-wl tree:
b44.c:v2.0
b44 ssb0:0: Required 30BIT DMA mask unsupported by the system.
b44: probe of ssb0:0 failed with error -5
b44 ssb0:1: Required 30BIT DMA mask unsupported by the system.
b44: probe of ssb0:1 failed with error -5
and reverting the patch:
b44.c:v2.0
eth0: Broadcom 44xx/47xx 10/100BaseT Ethernet 00:17:31:ba:ec:35
eth1: Broadcom 44xx/47xx 10/100BaseT Ethernet 40:10:18:00:00:2d
The problem appears to be a missing non-pci equivalent of
pci_set_consistent_dma_mask. Maybe that's why the mask was set manually.
I can not find anything that sets coherent_dma_mask for other than a pci
device. If somebody can confirm my (mis)understanding of this, I'll post
the problem to linux-mips.
Steve
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