diff options
Diffstat (limited to 'bsps/powerpc/mvme5500/include/bsp/irq.h')
| -rw-r--r-- | bsps/powerpc/mvme5500/include/bsp/irq.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/bsps/powerpc/mvme5500/include/bsp/irq.h b/bsps/powerpc/mvme5500/include/bsp/irq.h new file mode 100644 index 0000000000..6704c2f626 --- /dev/null +++ b/bsps/powerpc/mvme5500/include/bsp/irq.h @@ -0,0 +1,137 @@ +/* irq.h + * + * This include file describe the data structure and the functions implemented + * by rtems to write interrupt handlers. + * + * CopyRight (C) 1999 valette@crf.canon.fr + * + * This code is heavilly inspired by the public specification of STREAM V2 + * that can be found at : + * + * <http://www.chorus.com/Documentation/index.html> by following + * the STREAM API Specification Document link. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + * + * Copyright 2004, 2005 Brookhaven National Laboratory and + * Shuchen Kate Feng <feng1@bnl.gov> + * + * - modified shared/irq/irq.h for Mvme5500 (no ISA devices/PIC) + * - Discovery GT64260 interrupt controller instead of 8259. + * - Added support for software IRQ priority levels. + * - modified to optimize the IRQ latency and handling + */ + +#ifndef LIBBSP_POWERPC_MVME5500_IRQ_IRQ_H +#define LIBBSP_POWERPC_MVME5500_IRQ_IRQ_H + +#define BSP_SHARED_HANDLER_SUPPORT 1 +#include <rtems/irq.h> + +#ifndef ASM + +#define OneTierIrqPrioTbl 1 + +/* + * Symbolic IRQ names and related definitions. + */ + +/* leave the ISA symbols in there, so we can reuse shared/irq.c + * Also, we start numbering PCI irqs at 16 because the OPENPIC + * driver relies on this when mapping irq number <-> vectors + * (OPENPIC_VEC_SOURCE in openpic.h) + */ + + /* See section 25.2 , Table 734 of GT64260 controller + * Main Interrupt Cause Low register + */ +#define BSP_MICL_IRQ_NUMBER (32) +#define BSP_MICL_IRQ_LOWEST_OFFSET (0) +#define BSP_MICL_IRQ_MAX_OFFSET (BSP_MICL_IRQ_LOWEST_OFFSET + BSP_MICL_IRQ_NUMBER -1) + /* + * Main Interrupt Cause High register + */ +#define BSP_MICH_IRQ_NUMBER (32) +#define BSP_MICH_IRQ_LOWEST_OFFSET (BSP_MICL_IRQ_MAX_OFFSET+1) +#define BSP_MICH_IRQ_MAX_OFFSET (BSP_MICH_IRQ_LOWEST_OFFSET + BSP_MICH_IRQ_NUMBER -1) + /* External GPP Interrupt assignements + */ +#define BSP_GPP_IRQ_NUMBER (32) +#define BSP_GPP_IRQ_LOWEST_OFFSET (BSP_MICH_IRQ_MAX_OFFSET+1) +#define BSP_GPP_IRQ_MAX_OFFSET (BSP_GPP_IRQ_LOWEST_OFFSET + BSP_GPP_IRQ_NUMBER - 1) + + /* + * PowerPc exceptions handled as interrupt where a rtems managed interrupt + * handler might be connected + */ +#define BSP_PROCESSOR_IRQ_NUMBER (1) +#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET (BSP_GPP_IRQ_MAX_OFFSET + 1) +#define BSP_PROCESSOR_IRQ_MAX_OFFSET (BSP_PROCESSOR_IRQ_LOWEST_OFFSET + BSP_PROCESSOR_IRQ_NUMBER - 1) + + /* allow a couple of vectors for VME and counter/timer irq sources etc. + * This is probably not needed any more. + */ +#define BSP_MISC_IRQ_NUMBER (30) +#define BSP_MISC_IRQ_LOWEST_OFFSET (BSP_PROCESSOR_IRQ_MAX_OFFSET + 1) +#define BSP_MISC_IRQ_MAX_OFFSET (BSP_MISC_IRQ_LOWEST_OFFSET + BSP_MISC_IRQ_NUMBER - 1) + + /* + * Summary + */ +#define BSP_IRQ_NUMBER (BSP_MISC_IRQ_MAX_OFFSET + 1) +#define BSP_MAIN_IRQ_NUMBER (64) +#define BSP_PIC_IRQ_NUMBER (96) +#define BSP_LOWEST_OFFSET (BSP_MICL_IRQ_LOWEST_OFFSET) +#define BSP_MAX_OFFSET (BSP_MISC_IRQ_MAX_OFFSET) + + /* Main CPU interrupt cause (Low) */ +#define BSP_MAIN_TIMER0_1_IRQ (BSP_MICL_IRQ_LOWEST_OFFSET+8) +#define BSP_MAIN_PCI0_7_0 (BSP_MICL_IRQ_LOWEST_OFFSET+12) +#define BSP_MAIN_PCI0_15_8 (BSP_MICL_IRQ_LOWEST_OFFSET+13) +#define BSP_MAIN_PCI0_23_16 (BSP_MICL_IRQ_LOWEST_OFFSET+14) +#define BSP_MAIN_PCI0_31_24 (BSP_MICL_IRQ_LOWEST_OFFSET+15) +#define BSP_MAIN_PCI1_7_0 (BSP_MICL_IRQ_LOWEST_OFFSET+16) +#define BSP_MAIN_PCI1_15_8 (BSP_MICL_IRQ_LOWEST_OFFSET+18) +#define BSP_MAIN_PCI1_23_16 (BSP_MICL_IRQ_LOWEST_OFFSET+19) +#define BSP_MAIN_PCI1_31_24 (BSP_MICL_IRQ_LOWEST_OFFSET+20) + + + /* Main CPU interrupt cause (High) */ +#define BSP_MAIN_ETH0_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET) +#define BSP_MAIN_ETH1_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET+1) +#define BSP_MAIN_ETH2_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET+2) +#define BSP_MAIN_GPP7_0_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET+24) +#define BSP_MAIN_GPP15_8_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET+25) +#define BSP_MAIN_GPP23_16_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET+26) +#define BSP_MAIN_GPP31_24_IRQ (BSP_MICH_IRQ_LOWEST_OFFSET+27) + + /* on the MVME5500, these are the GT64260B external GPP0 interrupt */ +#define BSP_PCI_IRQ_LOWEST_OFFSET (BSP_GPP_IRQ_LOWEST_OFFSET) +#define BSP_UART_COM2_IRQ (BSP_GPP_IRQ_LOWEST_OFFSET) +#define BSP_UART_COM1_IRQ (BSP_GPP_IRQ_LOWEST_OFFSET) +#define BSP_GPP8_IRQ_OFFSET (BSP_GPP_IRQ_LOWEST_OFFSET+8) +#define BSP_GPP_PMC1_INTA (BSP_GPP8_IRQ_OFFSET) +#define BSP_GPP16_IRQ_OFFSET (BSP_GPP_IRQ_LOWEST_OFFSET+16) +#define BSP_GPP24_IRQ_OFFSET (BSP_GPP_IRQ_LOWEST_OFFSET+24) +#define BSP_GPP_VME_VLINT0 (BSP_GPP_IRQ_LOWEST_OFFSET+12) +#define BSP_GPP_VME_VLINT1 (BSP_GPP_IRQ_LOWEST_OFFSET+13) +#define BSP_GPP_VME_VLINT2 (BSP_GPP_IRQ_LOWEST_OFFSET+14) +#define BSP_GPP_VME_VLINT3 (BSP_GPP_IRQ_LOWEST_OFFSET+15) +#define BSP_GPP_PMC2_INTA (BSP_GPP_IRQ_LOWEST_OFFSET+16) +#define BSP_GPP_82544_IRQ (BSP_GPP_IRQ_LOWEST_OFFSET+20) +#define BSP_GPP_WDT_NMI_IRQ (BSP_GPP_IRQ_LOWEST_OFFSET+24) +#define BSP_GPP_WDT_EXP_IRQ (BSP_GPP_IRQ_LOWEST_OFFSET+25) + + /* + * Some Processor execption handled as rtems IRQ symbolic name definition + */ +#define BSP_DECREMENTER (BSP_PROCESSOR_IRQ_LOWEST_OFFSET) + +extern void BSP_rtems_irq_mng_init(unsigned cpuId); + +#include <bsp/irq_supp.h> + +#endif +#endif |