diff options
Diffstat (limited to 'arch/mips/pci/ops-au1000.c')
| -rw-r--r-- | arch/mips/pci/ops-au1000.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/arch/mips/pci/ops-au1000.c b/arch/mips/pci/ops-au1000.c index c1c91ca0f9c2..be1420126c42 100644 --- a/arch/mips/pci/ops-au1000.c +++ b/arch/mips/pci/ops-au1000.c @@ -50,11 +50,6 @@ int (*board_pci_idsel)(unsigned int devsel, int assert); -/* CP0 hazard avoidance. */ -#define BARRIER __asm__ __volatile__(".set noreorder\n\t" \ - "nop; nop; nop; nop;\t" \ - ".set reorder\n\t") - void mod_wired_entry(int entry, unsigned long entrylo0, unsigned long entrylo1, unsigned long entryhi, unsigned long pagemask) @@ -66,16 +61,12 @@ void mod_wired_entry(int entry, unsigned long entrylo0, old_ctx = read_c0_entryhi() & 0xff; old_pagemask = read_c0_pagemask(); write_c0_index(entry); - BARRIER; write_c0_pagemask(pagemask); write_c0_entryhi(entryhi); write_c0_entrylo0(entrylo0); write_c0_entrylo1(entrylo1); - BARRIER; tlb_write_indexed(); - BARRIER; write_c0_entryhi(old_ctx); - BARRIER; write_c0_pagemask(old_pagemask); } @@ -128,9 +119,8 @@ static int config_access(unsigned char access_type, struct pci_bus *bus, last_entryLo0 = last_entryLo1 = 0xffffffff; } - /* Since the Au1xxx doesn't do the idsel timing exactly to spec, - * many board vendors implement their own off-chip idsel, so call - * it now. If it doesn't succeed, may as well bail out at this point. + /* Allow board vendors to implement their own off-chip idsel. + * If it doesn't succeed, may as well bail out at this point. */ if (board_pci_idsel) { if (board_pci_idsel(device, 1) == 0) { |