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/* vmeconfig.c,v 1.1.2.2 2003/03/25 16:46:01 joel Exp */
/* Standard VME bridge configuration for PPC boards */
/* Copyright Author: Till Straumann <strauman@slac.stanford.edu>, 3/2002 */
/* Copyright 2004, Brookhaven National Lab. and S. Kate Feng <feng1@bnl.gov>
* Modified to support the MVME5500, 3/2004
*/
#include <bsp.h>
#include <bsp/VME.h>
#include <bsp/VMEConfig.h>
#include <bsp/vmeUniverse.h>
#include <bsp/irq.h>
#include <libcpu/bat.h>
/* Use a weak alias for the VME configuration.
* This permits individual applications to override
* this routine.
* They may even create an 'empty'
*
* void BSP_vme_config(void) {}
*
* which will avoid linking in the Universe driver
* at all :-).
*/
void BSP_vme_config(void) __attribute__ (( weak, alias("__BSP_default_vme_config") ));
/* translate through host bridge and vme master window of vme bridge */
int
BSP_vme2local_adrs(unsigned long am, unsigned long vmeaddr, unsigned long *plocaladdr)
{
int rval=vmeUniverseXlateAddr(1,0,am,vmeaddr,plocaladdr);
*plocaladdr+=PCI_MEM_BASE;
return rval;
}
/* how a CPU address is mapped to the VME bus (if at all) */
int
BSP_local2vme_adrs(unsigned long am, unsigned long localaddr, unsigned long *pvmeaddr)
{
return vmeUniverseXlateAddr(0, 0, am,localaddr+PCI_DRAM_OFFSET,pvmeaddr);
}
int BSP_installVME_isr(unsigned long vector, BSP_VME_ISR_t handler, void *arg)
{
return(vmeUniverseInstallISR(vector, handler, arg));
}
int
BSP_removeVME_isr(unsigned long vector, BSP_VME_ISR_t handler, void *arg)
{
return(vmeUniverseRemoveISR(vector, handler, arg));
}
/* retrieve the currently installed ISR for a given vector */
BSP_VME_ISR_t BSP_getVME_isr(unsigned long vector, void **parg)
{
return(vmeUniverseISRGet(vector, parg));
}
int BSP_enableVME_int_lvl(unsigned int level)
{
return(vmeUniverseIntEnable(level));
}
int BSP_disableVME_int_lvl(unsigned int level)
{
return(vmeUniverseIntDisable(level));
}
void
__BSP_default_vme_config(void)
{
vmeUniverseInit();
vmeUniverseReset();
/* setup a PCI0 area to map the VME bus */
setdbat(0,_VME_A32_WIN0_ON_PCI, _VME_A32_WIN0_ON_PCI, 0x10000000, IO_PAGE);
/* map VME address ranges */
vmeUniverseMasterPortCfg(
0,
VME_AM_EXT_SUP_DATA,
_VME_A32_WIN0_ON_VME,
_VME_A32_WIN0_ON_PCI,
0x0F000000);
vmeUniverseMasterPortCfg(
1,
VME_AM_STD_SUP_DATA,
0x00000000,
_VME_A24_ON_PCI,
0x00ff0000);
vmeUniverseMasterPortCfg(
2,
VME_AM_SUP_SHORT_IO,
0x00000000,
_VME_A16_ON_PCI,
0x00010000);
#ifdef _VME_DRAM_OFFSET
/* map our memory to VME */
vmeUniverseSlavePortCfg(
0,
VME_AM_EXT_SUP_DATA| VME_AM_IS_MEMORY,
_VME_DRAM_OFFSET,
PCI_DRAM_OFFSET,
BSP_mem_size);
/* make sure the host bridge PCI master is enabled */
vmeUniverseWriteReg(
vmeUniverseReadReg(UNIV_REGOFF_PCI_CSR) | UNIV_PCI_CSR_BM,
UNIV_REGOFF_PCI_CSR);
#endif
/* stdio is not yet initialized; the driver will revert to printk */
vmeUniverseMasterPortsShow(0);
vmeUniverseSlavePortsShow(0);
/* install the VME insterrupt manager */
vmeUniverseInstallIrqMgrAlt(1,
0, BSP_GPP_IRQ_LOWEST_OFFSET + 12,
1, BSP_GPP_IRQ_LOWEST_OFFSET + 13,
2, BSP_GPP_IRQ_LOWEST_OFFSET + 14,
3, BSP_GPP_IRQ_LOWEST_OFFSET + 15,
-1);
}
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