From: Wolfgang Denk <wd@pollux.(none)>
Date: Fri, 16 Dec 2005 14:14:18 +0000 (+0100)
Subject: MPC5200:  Set PCI retry counter to 0 = infinite retry;
X-Git-Tag: LABEL_2006_03_12_0025~53
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a9e642e2f8c944b9c0ffb5564fda262f6d3da0a3;p=oweals%2Fu-boot.git

MPC5200:  Set PCI retry counter to 0 = infinite retry;
The default of 255 is too short for slow devices.
Patch by Martin Nykodym, 12 Dec 2005
---

diff --git a/CHANGELOG b/CHANGELOG
index ac3be077d1..16b7c550af 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,10 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* MPC5200:  Set PCI retry counter to 0 = infinite retry;
+  The default of 255 is too short for slow devices.
+  Patch by Martin Nykodym, 12 Dec 2005
+
 * Change port configuration for O2DNT (CODEC1 on PSC1).
 
 * Fix register for PCI async mode on PPC440EP
diff --git a/cpu/mpc5xxx/pci_mpc5200.c b/cpu/mpc5xxx/pci_mpc5200.c
index 2cfa11ce27..1d903459e0 100644
--- a/cpu/mpc5xxx/pci_mpc5200.c
+++ b/cpu/mpc5xxx/pci_mpc5200.c
@@ -145,7 +145,11 @@ void pci_mpc5xxx_init (struct pci_controller *hose)
 
 	/* Disable interrupts from PCI controller */
 	*(vu_long *)MPC5XXX_PCI_GSCR &= ~(7 << 12);
-	*(vu_long *)MPC5XXX_PCI_ICR &= ~(7 << 24);
+	*(vu_long *)MPC5XXX_PCI_ICR  &= ~(7 << 24);
+
+	/* Set PCI retry counter to 0 = infinite retry. */
+	/* The default of 255 is too short for slow devices. */
+	*(vu_long *)MPC5XXX_PCI_ICR &= 0xFFFFFF00;
 
 	/* Disable initiator windows */
 	*(vu_long *)MPC5XXX_PCI_IWCR = 0;