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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
This commit is contained in:
Wolfgang Denk 2005-12-16 15:14:18 +01:00
parent e43232dee8
commit a9e642e2f8
2 changed files with 9 additions and 1 deletions
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4
CHANGELOG
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@ -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

6
cpu/mpc5xxx/pci_mpc5200.c
View File

@ -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;