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Fixes for system controllers for Atlas/Malta core cards.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Maciej W. Rozycki
2005-02-01 20:18:59 +00:00
committed by Ralf Baechle
parent bec0204dfb
commit aa0980b809
6 changed files with 297 additions and 218 deletions
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31
arch/mips/pci/ops-msc.c
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@@ -21,7 +21,6 @@
* MIPS boards specific PCI support.
*
*/
#include <linux/config.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/kernel.h>
@@ -49,34 +48,17 @@ static int msc_pcibios_config_access(unsigned char access_type,
struct pci_bus *bus, unsigned int devfn, int where, u32 * data)
{
unsigned char busnum = bus->number;
unsigned char type;
u32 intr;
#ifdef CONFIG_MIPS_BOARDS_GEN
if ((busnum == 0) && (PCI_SLOT(devfn) == 17)) {
/* MIPS Core boards have SOCit connected as device 17 */
return -1;
}
#endif
/* Clear status register bits. */
MSC_WRITE(MSC01_PCI_INTSTAT,
(MSC01_PCI_INTCFG_MA_BIT | MSC01_PCI_INTCFG_TA_BIT));
/* Setup address */
if (busnum == 0)
type = 0; /* Type 0 */
else
type = 1; /* Type 1 */
MSC_WRITE(MSC01_PCI_CFGADDR,
((busnum << MSC01_PCI_CFGADDR_BNUM_SHF) |
(PCI_SLOT(devfn) << MSC01_PCI_CFGADDR_DNUM_SHF)
| (PCI_FUNC(devfn) <<
MSC01_PCI_CFGADDR_FNUM_SHF) | ((where /
4) <<
MSC01_PCI_CFGADDR_RNUM_SHF)
| (type)));
(PCI_SLOT(devfn) << MSC01_PCI_CFGADDR_DNUM_SHF) |
(PCI_FUNC(devfn) << MSC01_PCI_CFGADDR_FNUM_SHF) |
((where / 4) << MSC01_PCI_CFGADDR_RNUM_SHF)));
/* Perform access */
if (access_type == PCI_ACCESS_WRITE)
@@ -86,15 +68,12 @@ static int msc_pcibios_config_access(unsigned char access_type,
/* Detect Master/Target abort */
MSC_READ(MSC01_PCI_INTSTAT, intr);
if (intr & (MSC01_PCI_INTCFG_MA_BIT |
MSC01_PCI_INTCFG_TA_BIT)) {
if (intr & (MSC01_PCI_INTCFG_MA_BIT | MSC01_PCI_INTCFG_TA_BIT)) {
/* Error occurred */
/* Clear bits */
MSC_READ(MSC01_PCI_INTSTAT, intr);
MSC_WRITE(MSC01_PCI_INTSTAT,
(MSC01_PCI_INTCFG_MA_BIT |
MSC01_PCI_INTCFG_TA_BIT));
(MSC01_PCI_INTCFG_MA_BIT | MSC01_PCI_INTCFG_TA_BIT));
return -1;
}