void pci_target_init(struct pci_controller * hose )
{
/*-------------------------------------------------------------------+
* Disable everything
*-------------------------------------------------------------------*/
out32r( PCIX0_PIM0SA, 0 ); /* disable */
out32r( PCIX0_PIM1SA, 0 ); /* disable */
out32r( PCIX0_PIM2SA, 0 ); /* disable */
out32r( PCIX0_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( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
out32r( PCIX0_PIM0LAH, 0 );
out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
out32r( PCIX0_BAR0, 0 );
/*-------------------------------------------------------------------+
* Program the board's subsystem id/vendor id
*-------------------------------------------------------------------*/
out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
}
void pcippc2_wdt_init (void)
{
out16r (FPGA (WDT, PROG), 0xffff);
out8 (FPGA (WDT, CTRL), 0x1);
pcippc2_wdt_init_done = 1;
}
int pci_440_init (struct pci_controller *hose)
{
int reg_num = 0;
#ifndef CONFIG_DISABLE_PISE_TEST
/*--------------------------------------------------------------------------+
* The PCI initialization sequence enable bit must be set ... if not abort
* pci setup since updating the bit requires chip reset.
*--------------------------------------------------------------------------*/
#if defined(CONFIG_440GX) || defined(CONFIG_440SP) || defined(CONFIG_440SPE)
unsigned long strap;
mfsdr(sdr_sdstp1,strap);
if ((strap & SDR0_SDSTP1_PISE_MASK) == 0) {
printf("PCI: SDR0_STRP1[PISE] not set.\n");
printf("PCI: Configuration aborted.\n");
return -1;
}
#elif defined(CONFIG_440GP)
unsigned long strap;
strap = mfdcr(cpc0_strp1);
if ((strap & CPC0_STRP1_PISE_MASK) == 0) {
printf("PCI: CPC0_STRP1[PISE] not set.\n");
printf("PCI: Configuration aborted.\n");
return -1;
}
#endif
#endif /* CONFIG_DISABLE_PISE_TEST */
/*--------------------------------------------------------------------------+
* PCI controller init
*--------------------------------------------------------------------------*/
hose->first_busno = 0;
hose->last_busno = 0;
/* PCI I/O space */
pci_set_region(hose->regions + reg_num++,
0x00000000,
PCIX0_IOBASE,
0x10000,
PCI_REGION_IO);
/* PCI memory space */
pci_set_region(hose->regions + reg_num++,
CONFIG_SYS_PCI_TARGBASE,
CONFIG_SYS_PCI_MEMBASE,
#ifdef CONFIG_SYS_PCI_MEMSIZE
CONFIG_SYS_PCI_MEMSIZE,
#else
0x10000000,
#endif
PCI_REGION_MEM );
#if defined(CONFIG_PCI_SYS_MEM_BUS) && defined(CONFIG_PCI_SYS_MEM_PHYS) && \
defined(CONFIG_PCI_SYS_MEM_SIZE)
/* System memory space */
pci_set_region(hose->regions + reg_num++,
CONFIG_PCI_SYS_MEM_BUS,
CONFIG_PCI_SYS_MEM_PHYS,
CONFIG_PCI_SYS_MEM_SIZE,
PCI_REGION_MEM | PCI_REGION_SYS_MEMORY );
#endif
hose->region_count = reg_num;
pci_setup_indirect(hose, PCIX0_CFGADR, PCIX0_CFGDATA);
/* Let board change/modify hose & do initial checks */
if (pci_pre_init (hose) == 0) {
printf("PCI: Board-specific initialization failed.\n");
printf("PCI: Configuration aborted.\n");
return -1;
}
pci_register_hose( hose );
/*--------------------------------------------------------------------------+
* PCI target init
*--------------------------------------------------------------------------*/
#if defined(CONFIG_SYS_PCI_TARGET_INIT)
pci_target_init(hose); /* Let board setup pci target */
#else
out16r( PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID );
out16r( PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_ID );
out16r( PCIX0_CLS, 0x00060000 ); /* Bridge, host bridge */
#endif
#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT)
out32r( PCIX0_BRDGOPT1, 0x04000060 ); /* PLB Rq pri highest */
out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 0x83 ); /* Enable host config, clear Timeout, ensure int src1 */
#elif defined(PCIX0_BRDGOPT1)
out32r( PCIX0_BRDGOPT1, 0x10000060 ); /* PLB Rq pri highest */
out32r( PCIX0_BRDGOPT2, in32(PCIX0_BRDGOPT2) | 1 ); /* Enable host config */
#endif
/*--------------------------------------------------------------------------+
* PCI master init: default is one 256MB region for PCI memory:
* 0x3_00000000 - 0x3_0FFFFFFF ==> CONFIG_SYS_PCI_MEMBASE
*--------------------------------------------------------------------------*/
#if defined(CONFIG_SYS_PCI_MASTER_INIT)
pci_master_init(hose); /* Let board setup pci master */
#else
out32r( PCIX0_POM0SA, 0 ); /* disable */
out32r( PCIX0_POM1SA, 0 ); /* disable */
out32r( PCIX0_POM2SA, 0 ); /* disable */
#if defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT)
out32r( PCIX0_POM0LAL, 0x10000000 );
out32r( PCIX0_POM0LAH, 0x0000000c );
#else
out32r( PCIX0_POM0LAL, 0x00000000 );
out32r( PCIX0_POM0LAH, 0x00000003 );
#endif
out32r( PCIX0_POM0PCIAL, CONFIG_SYS_PCI_MEMBASE );
out32r( PCIX0_POM0PCIAH, 0x00000000 );
out32r( PCIX0_POM0SA, 0xf0000001 ); /* 256MB, enabled */
out32r( PCIX0_STS, in32r( PCIX0_STS ) & ~0x0000fff8 );
#endif
/*--------------------------------------------------------------------------+
* PCI host configuration -- we don't make any assumptions here ... the
* _board_must_indicate_ what to do -- there's just too many runtime
* scenarios in environments like cPCI, PPMC, etc. to make a determination
* based on hard-coded values or state of arbiter enable.
*--------------------------------------------------------------------------*/
if (is_pci_host(hose)) {
#ifdef CONFIG_PCI_SCAN_SHOW
printf("PCI: Bus Dev VenId DevId Class Int\n");
#endif
#if !defined(CONFIG_440EP) && !defined(CONFIG_440GR) && \
!defined(CONFIG_440EPX) && !defined(CONFIG_440GRX)
out16r( PCIX0_CMD, in16r( PCIX0_CMD ) | PCI_COMMAND_MASTER);
#endif
hose->last_busno = pci_hose_scan(hose);
}
return hose->last_busno;
}
