]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
natsemi: fix MMIO for PPC 44x platforms
authorSergei Shtylyov <sshtylyov@ru.mvista.com>
Sat, 12 Apr 2008 16:58:30 +0000 (20:58 +0400)
committerJeff Garzik <jgarzik@redhat.com>
Thu, 17 Apr 2008 19:31:31 +0000 (15:31 -0400)
commit703bb99ca73aa38d3f200d4c7e9bb460dce35fda
treee840c454c4b8cfa9a539d5017b426d20408beabb
parent406874a7ccee927049b1c182df69457718b938da
natsemi: fix MMIO for PPC 44x platforms

The driver stores the PCI resource address into 'unsigned long' variable before
calling ioremap()  on it. This warrants a kernel oops when the registers are
accessed on PPC 44x platforms which (being 32-bit) have PCI memory space mapped
beyond 4 GB.

The arch/ppc/ kernel has a fixup in ioremap() that creates an illusion of the
PCI memory resources are mapped below 4 GB, but arch/powerpc/ code got rid of
this trick, having instead CONFIG_RESOURCES_64BIT enabled.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/net/natsemi.c