Commit 04668873 authored by David Howells's avatar David Howells Committed by Linus Torvalds

FRV: Enable the MB86943 PCI arbiter correctly

Enable the MB93090 motherboard's MB86943 PCI arbiter correctly by assigning to
the register rather than comparing against it.  This is required to support
bus mastering.
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b5625481
...@@ -400,7 +400,8 @@ int __init pcibios_init(void) ...@@ -400,7 +400,8 @@ int __init pcibios_init(void)
__reg_MB86943_pci_sl_mem_base = __region_CS2 + 0x08000000; __reg_MB86943_pci_sl_mem_base = __region_CS2 + 0x08000000;
mb(); mb();
*(volatile unsigned long *)(__region_CS2+0x01300014) == 1; /* enable PCI arbitration */
__reg_MB86943_pci_arbiter = MB86943_PCIARB_EN;
ioport_resource.start = (__reg_MB86943_sl_pci_io_base << 9) & 0xfffffc00; ioport_resource.start = (__reg_MB86943_sl_pci_io_base << 9) & 0xfffffc00;
ioport_resource.end = (__reg_MB86943_sl_pci_io_range << 9) | 0x3ff; ioport_resource.end = (__reg_MB86943_sl_pci_io_range << 9) | 0x3ff;
......
...@@ -36,4 +36,7 @@ ...@@ -36,4 +36,7 @@
#define __reg_MB86943_pci_sl_io_base *(volatile uint32_t *) (__region_CS1 + 0x70) #define __reg_MB86943_pci_sl_io_base *(volatile uint32_t *) (__region_CS1 + 0x70)
#define __reg_MB86943_pci_sl_mem_base *(volatile uint32_t *) (__region_CS1 + 0x78) #define __reg_MB86943_pci_sl_mem_base *(volatile uint32_t *) (__region_CS1 + 0x78)
#define __reg_MB86943_pci_arbiter *(volatile uint32_t *) (__region_CS2 + 0x01300014)
#define MB86943_PCIARB_EN 0x00000001
#endif /* _ASM_MB86943A_H */ #endif /* _ASM_MB86943A_H */
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