diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/score603e/vme/vmeconfig.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/score603e/vme/vmeconfig.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/score603e/vme/vmeconfig.c b/c/src/lib/libbsp/powerpc/score603e/vme/vmeconfig.c new file mode 100644 index 0000000000..1b4193ab54 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/score603e/vme/vmeconfig.c @@ -0,0 +1,133 @@ +/* vmeconfig.c,v 1.1.2.2 2003/03/25 16:46:01 joel Exp */ + +/* Standard VME bridge configuration for VGM type boards */ + +/* Author: Till Straumann <strauman@slac.stanford.edu>, 3/2002 */ + +#include <bsp.h> +#include <bsp/VME.h> +#include <bsp/irq.h> +#include <libcpu/bat.h> +#include <libcpu/spr.h> +#include <bsp/motorola.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") )); + +SPR_RO(DBAT0U) + +extern unsigned32 VME_Slot1; + +void +__BSP_default_vme_config(void) +{ +union { + struct _BATU bat; + unsigned long batbits; +} dbat0u; + + vmeUniverseInit(); + vmeUniverseReset(); + + /* setup a PCI area to map the VME bus */ + + dbat0u.batbits = _read_DBAT0U(); + + /* 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 +#if 0 + if (VME_Slot1){ + /* map our memory to VME */ +printk("vmeUniverseSlavePortCfg length of 0x%x\n", BSP_mem_size); + vmeUniverseSlavePortCfg( + 0, + VME_AM_EXT_SUP_DATA, + _VME_DRAM_32_OFFSET1, + PCI_DRAM_OFFSET, + BSP_mem_size); +printk("vmeUniverseSlavePortCfg length of 0x%x\n", _VME_A24_SIZE); + vmeUniverseSlavePortCfg( + 1, + VME_AM_STD_SUP_DATA, + _VME_DRAM_24_OFFSET1, + PCI_DRAM_OFFSET, + _VME_A24_SIZE); +printk("vmeUniverseSlavePortCfg length of 0x%x\n", _VME_A16_SIZE); + vmeUniverseSlavePortCfg( + 2, + VME_AM_SUP_SHORT_IO, + _VME_DRAM_16_OFFSET1, + PCI_DRAM_OFFSET, + _VME_A16_SIZE); + } + else { +printk("vmeUniverseSlavePortCfg length of 0x%x\n", BSP_mem_size); + vmeUniverseSlavePortCfg( + 0, + VME_AM_EXT_SUP_DATA, + _VME_DRAM_32_OFFSET2, + PCI_DRAM_OFFSET, + BSP_mem_size); +printk("vmeUniverseSlavePortCfg length of 0x%x\n", _VME_A24_SIZE); + vmeUniverseSlavePortCfg( + 1, + VME_AM_STD_SUP_DATA, + _VME_DRAM_24_OFFSET2, + PCI_DRAM_OFFSET, + _VME_A24_SIZE); +printk("vmeUniverseSlavePortCfg length of 0x%x\n", _VME_A16_SIZE); + vmeUniverseSlavePortCfg( + 2, + VME_AM_SUP_SHORT_IO, + _VME_DRAM_16_OFFSET2, + PCI_DRAM_OFFSET, + _VME_A16_SIZE); + } +#endif + + /* 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 */ + vmeUniverseInstallIrqMgr(0,5,1,6); + if (vmeUniverse0PciIrqLine<0) + BSP_panic("Unable to get interrupt line info from PCI config"); + _BSP_vme_bridge_irq=BSP_PCI_IRQ_LOWEST_OFFSET+vmeUniverse0PciIrqLine; +} |