diff options
Diffstat (limited to 'include/asm-parisc/pci.h')
| -rw-r--r-- | include/asm-parisc/pci.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h index f277254159b7..4c5e15ea3a02 100644 --- a/include/asm-parisc/pci.h +++ b/include/asm-parisc/pci.h | |||
| @@ -18,6 +18,18 @@ | |||
| 18 | */ | 18 | */ |
| 19 | #define PCI_MAX_BUSSES 256 | 19 | #define PCI_MAX_BUSSES 256 |
| 20 | 20 | ||
| 21 | |||
| 22 | /* To be used as: mdelay(pci_post_reset_delay); | ||
| 23 | * | ||
| 24 | * post_reset is the time the kernel should stall to prevent anyone from | ||
| 25 | * accessing the PCI bus once #RESET is de-asserted. | ||
| 26 | * PCI spec somewhere says 1 second but with multi-PCI bus systems, | ||
| 27 | * this makes the boot time much longer than necessary. | ||
| 28 | * 20ms seems to work for all the HP PCI implementations to date. | ||
| 29 | */ | ||
| 30 | #define pci_post_reset_delay 50 | ||
| 31 | |||
| 32 | |||
| 21 | /* | 33 | /* |
| 22 | ** pci_hba_data (aka H2P_OBJECT in HP/UX) | 34 | ** pci_hba_data (aka H2P_OBJECT in HP/UX) |
| 23 | ** | 35 | ** |
| @@ -83,7 +95,7 @@ static __inline__ int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a) | |||
| 83 | 95 | ||
| 84 | /* | 96 | /* |
| 85 | ** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses. | 97 | ** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses. |
| 86 | ** See pcibios.c for more conversions used by Generic PCI code. | 98 | ** See pci.c for more conversions used by Generic PCI code. |
| 87 | ** | 99 | ** |
| 88 | ** Platform characteristics/firmware guarantee that | 100 | ** Platform characteristics/firmware guarantee that |
| 89 | ** (1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO | 101 | ** (1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO |
| @@ -191,7 +203,6 @@ struct pci_bios_ops { | |||
| 191 | */ | 203 | */ |
| 192 | extern struct pci_port_ops *pci_port; | 204 | extern struct pci_port_ops *pci_port; |
| 193 | extern struct pci_bios_ops *pci_bios; | 205 | extern struct pci_bios_ops *pci_bios; |
| 194 | extern int pci_post_reset_delay; /* delay after de-asserting #RESET */ | ||
| 195 | extern int pci_hba_count; | 206 | extern int pci_hba_count; |
| 196 | extern struct pci_hba_data *parisc_pci_hba[]; | 207 | extern struct pci_hba_data *parisc_pci_hba[]; |
| 197 | 208 | ||
