diff options
Diffstat (limited to 'board/amcc/luan/luan.c')
| -rw-r--r-- | board/amcc/luan/luan.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c index a04f2af..332d170 100644 --- a/board/amcc/luan/luan.c +++ b/board/amcc/luan/luan.c @@ -127,102 +127,6 @@ u32 ddr_clktr(u32 default_val) { } /************************************************************************* - * pci_pre_init - * - * This routine is called just prior to registering the hose and gives - * the board the opportunity to check things. Returning a value of zero - * indicates that things are bad & PCI initialization should be aborted. - * - * Different boards may wish to customize the pci controller structure - * (add regions, override default access routines, etc) or perform - * certain pre-initialization actions. - * - ************************************************************************/ -#if defined(CONFIG_PCI) -int pci_pre_init( struct pci_controller *hose ) -{ - unsigned long strap; - - /*--------------------------------------------------------------------------+ - * The luan board is always configured as the host & requires the - * PCI arbiter to be enabled. - *--------------------------------------------------------------------------*/ - mfsdr(SDR0_SDSTP1, strap); - if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ) { - printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap); - - return 0; - } - - return 1; -} -#endif /* defined(CONFIG_PCI) */ - - -/************************************************************************* - * pci_target_init - * - * The bootstrap configuration provides default settings for the pci - * inbound map (PIM). But the bootstrap config choices are limited and - * may not be sufficient for a given board. - * - ************************************************************************/ -#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) -void pci_target_init(struct pci_controller *hose) -{ - /*--------------------------------------------------------------------------+ - * Disable everything - *--------------------------------------------------------------------------*/ - out32r( PCIL0_PIM0SA, 0 ); /* disable */ - out32r( PCIL0_PIM1SA, 0 ); /* disable */ - out32r( PCIL0_PIM2SA, 0 ); /* disable */ - out32r( PCIL0_EROMBA, 0 ); /* disable expansion rom */ - - /*--------------------------------------------------------------------------+ - * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping - * options to not support sizes such as 128/256 MB. - *--------------------------------------------------------------------------*/ - out32r( PCIL0_PIM0LAL, CONFIG_SYS_SDRAM_BASE ); - out32r( PCIL0_PIM0LAH, 0 ); - out32r( PCIL0_PIM0SA, ~(gd->ram_size - 1) | 1 ); - - out32r( PCIL0_BAR0, 0 ); - - /*--------------------------------------------------------------------------+ - * Program the board's subsystem id/vendor id - *--------------------------------------------------------------------------*/ - out16r( PCIL0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID ); - out16r( PCIL0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID ); - - out16r( PCIL0_CMD, in16r(PCIL0_CMD) | PCI_COMMAND_MEMORY ); -} -#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */ - - -/************************************************************************* - * is_pci_host - * - * This routine is called to determine if a pci scan should be - * performed. With various hardware environments (especially cPCI and - * PPMC) it's insufficient to depend on the state of the arbiter enable - * bit in the strap register, or generic host/adapter assumptions. - * - * Rather than hard-code a bad assumption in the general 440 code, the - * 440 pci code requires the board to decide at runtime. - * - * Return 0 for adapter mode, non-zero for host (monarch) mode. - * - * - ************************************************************************/ -#if defined(CONFIG_PCI) -int is_pci_host(struct pci_controller *hose) -{ - return 1; -} -#endif /* defined(CONFIG_PCI) */ - - -/************************************************************************* * hw_watchdog_reset * * This routine is called to reset (keep alive) the watchdog timer |