[SCSI] aic79xx: fix MMIO for PPC 44x platforms
The driver stores the PCI resource address into 'u_long' variable before calling ioremap_nocache() on it. This warrants 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 helps create an illusion that 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: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
Showing
想要评论请 注册 或 登录