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powerpc/shared: ISA bus bridge fails to enable the openpic irq

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- The call to enable the openpic irq for the ISA bridge fails
  because the IRQ used is offset by the ISA bus signals and
  the openpic call expects an IRQ relative to its signals.

- Add the MVME 2600/2700 to the list of boards with an ISA bridge.

Closes #4231
This commit is contained in:
Chris Johns
2021-02-06 10:03:21 -10:00
parent 96ea09ac4c
commit 450e238bc6
2 changed files with 2 additions and 2 deletions
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2
bsps/powerpc/shared/irq/irq_init.c
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@@ -310,7 +310,7 @@ void BSP_rtems_irq_mng_init(unsigned cpuId)
#endif
known_cpi_isa_bridge = 1;
}
if ( currentBoard == MVME_2300 ) {
if ( currentBoard == MVME_2300 || currentBoard == MVME_2600_2700_W_MVME761 ) {
/* nothing to do for W83C553 bridge */
known_cpi_isa_bridge = 1;
}

2
bsps/powerpc/shared/irq/openpic_i8259_irq.c
View File

@@ -214,7 +214,7 @@ int BSP_setup_the_pic(rtems_irq_global_settings* config)
/*
* Must enable PCI/ISA bridge IRQ
*/
openpic_enable_irq (BSP_PCI_ISA_BRIDGE_IRQ);
openpic_enable_irq (BSP_PCI_ISA_BRIDGE_IRQ - BSP_PCI_IRQ_LOWEST_OFFSET);
#endif
#endif