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path: root/cpu/ppc4xx/405gp_pci.c
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Diffstat (limited to 'cpu/ppc4xx/405gp_pci.c')
-rw-r--r--cpu/ppc4xx/405gp_pci.c33
1 files changed, 23 insertions, 10 deletions
diff --git a/cpu/ppc4xx/405gp_pci.c b/cpu/ppc4xx/405gp_pci.c
index d3f6b23..c9e2e9c 100644
--- a/cpu/ppc4xx/405gp_pci.c
+++ b/cpu/ppc4xx/405gp_pci.c
@@ -411,15 +411,23 @@ void pci_440_init (struct pci_controller *hose)
/*--------------------------------------------------------------------------+
* The PCI initialization sequence enable bit must be set ... if not abort
- * pci setup since updating the bit requires chip reset.
+ * pci setup since updating the bit requires chip reset.
*--------------------------------------------------------------------------*/
- strap = mfdcr(cpc0_strp1);
- if( (strap & 0x00040000) == 0 ){
- printf("PCI: CPC0_STRP1[PISE] not set.\n");
- printf("PCI: Configuration aborted.\n");
- return;
- }
-
+#if defined (CONFIG_440_GX)
+ mfsdr(sdr_sdstp1,strap);
+ if ( (strap & 0x00010000) == 0 ){
+ printf("PCI: SDR0_STRP1[PISE] not set.\n");
+ printf("PCI: Configuration aborted.\n");
+ return;
+ }
+#else
+ strap = mfdcr(cpc0_strp1);
+ if( (strap & 0x00040000) == 0 ){
+ printf("PCI: CPC0_STRP1[PISE] not set.\n");
+ printf("PCI: Configuration aborted.\n");
+ return;
+ }
+#endif
/*--------------------------------------------------------------------------+
* PCI controller init
*--------------------------------------------------------------------------*/
@@ -463,8 +471,13 @@ void pci_440_init (struct pci_controller *hose)
out16r( PCIX0_CLS, 0x00060000 ); /* Bridge, host bridge */
#endif
- out32r( PCIX0_BRDGOPT1, 0x10000060 ); /* PLB Rq pri highest */
- out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 1 ); /* Enable host config */
+#if defined(CONFIG_440_GX)
+ out32r( PCIX0_BRDGOPT1, 0x04000060 ); /* PLB Rq pri highest */
+ out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 0x83 ); /* Enable host config, clear Timeout, ensure int src1 */
+#else
+ out32r( PCIX0_BRDGOPT1, 0x10000060 ); /* PLB Rq pri highest */
+ out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 1 ); /* Enable host config */
+#endif
/*--------------------------------------------------------------------------+
* PCI master init: default is one 256MB region for PCI memory: