From: Leigh Brown <leigh@solinno.co.uk>
Date: Sat, 16 Apr 2005 22:24:26 +0000 (-0700)
Subject: [PATCH] ppc32: Make the Powerstack II Pro4000 boot again
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b625a2b85221821b6831a387ee23ff7d93ffb7d1;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] ppc32: Make the Powerstack II Pro4000 boot again

This patch restores the original behaviour of prep_pcibios_fixup() to only
call prep_pib_init() on machines with an openpic.  This allows the
Powerstack II Pro4000 to boot again.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/ppc/platforms/prep_pci.c b/arch/ppc/platforms/prep_pci.c
index 8cd80eb447bd..4760cb64251d 100644
--- a/arch/ppc/platforms/prep_pci.c
+++ b/arch/ppc/platforms/prep_pci.c
@@ -1245,8 +1245,13 @@ prep_pcibios_fixup(void)
 		pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
 	}
 
-	/* Setup the Winbond or Via PIB */
-	prep_pib_init();
+	/* Setup the Winbond or Via PIB - prep_pib_init() is coded for
+	 * the non-openpic case, but it breaks (at least) the Utah
+	 * (Powerstack II Pro4000), so only call it if we have an
+	 * openpic.
+	 */
+	if (have_openpic)
+		prep_pib_init();
 }
 
 static void __init