[PATCH] cyber2010 framebuffer on ARM Netwinder fix
The Netwinder machines with Cyber2010 crash badly when starting Xserver. The workaround is to disable pci burst option for this revision of video chip. [akpm@osdl.org: cleanup] Signed-off-by: Woody Suwalski <woodys@xandros.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: James Simmons <jsimmons@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1539,16 +1539,21 @@ static int cyberpro_pci_enable_mmio(struct cfb_info *cfb)
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/*
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* Allow the CyberPro to accept PCI burst accesses
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*/
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val = cyber2000_grphr(EXT_BUS_CTL, cfb);
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if (!(val & EXT_BUS_CTL_PCIBURST_WRITE)) {
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printk(KERN_INFO "%s: enabling PCI bursts\n", cfb->fb.fix.id);
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if (cfb->id == ID_CYBERPRO_2010) {
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printk(KERN_INFO "%s: NOT enabling PCI bursts\n", cfb->fb.fix.id);
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} else {
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val = cyber2000_grphr(EXT_BUS_CTL, cfb);
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if (!(val & EXT_BUS_CTL_PCIBURST_WRITE)) {
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printk(KERN_INFO "%s: enabling PCI bursts\n",
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cfb->fb.fix.id);
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val |= EXT_BUS_CTL_PCIBURST_WRITE;
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val |= EXT_BUS_CTL_PCIBURST_WRITE;
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if (cfb->id == ID_CYBERPRO_5000)
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val |= EXT_BUS_CTL_PCIBURST_READ;
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if (cfb->id == ID_CYBERPRO_5000)
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val |= EXT_BUS_CTL_PCIBURST_READ;
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cyber2000_grphw(EXT_BUS_CTL, val, cfb);
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cyber2000_grphw(EXT_BUS_CTL, val, cfb);
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}
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}
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return 0;
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