diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme5500/vme/VMEConfig.h')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme5500/vme/VMEConfig.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/vme/VMEConfig.h b/c/src/lib/libbsp/powerpc/mvme5500/vme/VMEConfig.h index 1a901b7c3e..19a70210c7 100644 --- a/c/src/lib/libbsp/powerpc/mvme5500/vme/VMEConfig.h +++ b/c/src/lib/libbsp/powerpc/mvme5500/vme/VMEConfig.h @@ -1,6 +1,21 @@ #ifndef RTEMS_BSP_VME_CONFIG_H #define RTEMS_BSP_VME_CONFIG_H -/* VMEConfig.h, S. Kate Feng modified it for MVME5500 3/04 */ +/* VMEConfig.h, S. Kate Feng modified it for MVME5500 3/04 + * + * May 2011 : Use the VME shared IRQ handlers. + * + * It seems that the implementation of VMEUNIVERSE_IRQ_MGR_FLAG_PW_WORKAROUND + * is not fully developed. The UNIV_REGOFF_VCSR_BS is defined for VME64 + * specification, which does not apply to a VME32 crate. In order to avoid + * spurious VME interrupts, a better and more universal solution is + * to flush the vmeUniverse FIFO by reading a register back within the + * users' Interrupt Service Routine (ISR) before returning. + * + * Some devices might require the ISR to issue an interrupt status READ + * after its IRQ is cleared, but before its corresponding interrupt + * is enabled again. + * + */ /* BSP specific address space configuration parameters */ /* @@ -11,6 +26,10 @@ * layout: */ #define _VME_A32_WIN0_ON_PCI 0x90000000 +/* If _VME_CSR_ON_PCI is defined then the A32 window is reduced to accommodate + * CSR for space. + */ +#define _VME_CSR_ON_PCI 0x9e000000 #define _VME_A24_ON_PCI 0x9f000000 #define _VME_A16_ON_PCI 0x9fff0000 @@ -30,7 +49,12 @@ #define BSP_VME_UNIVERSE_INSTALL_IRQ_MGR(err) \ do { \ - err = vmeUniverseInstallIrqMgr(0,64+12,1,64+13); \ + err = vmeUniverseInstallIrqMgrAlt(VMEUNIVERSE_IRQ_MGR_FLAG_SHARED,\ + 0, BSP_GPP_VME_VLINT0, \ + 1, BSP_GPP_VME_VLINT1, \ + 2, BSP_GPP_VME_VLINT2, \ + 3, BSP_GPP_VME_VLINT3, \ + -1 /* terminate list */); \ } while (0) #endif |