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bsp/raspberry: Add a bsp_fdt_map_intr().

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Fixes #3903
This commit is contained in:
Christian Mauderer
2020-03-09 23:00:58 +01:00
committed by Christian Mauderer
parent 50782bc5cf
commit bb8ae78d36
2 changed files with 27 additions and 0 deletions
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3
bsps/arm/raspberrypi/include/bsp/irq.h
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@@ -35,6 +35,8 @@
#define BCM2835_INTC_TOTAL_IRQ 64 + 8
#define BCM2835_IRQ_SET1_MIN 0
#define BCM2835_IRQ_SET2_MIN 32
#define BCM2835_IRQ_ID_GPU_TIMER_M0 0
#define BCM2835_IRQ_ID_GPU_TIMER_M1 1
@@ -69,6 +71,7 @@
#define BSP_INTERRUPT_VECTOR_MIN (0)
#define BSP_INTERRUPT_VECTOR_MAX (BCM2835_INTC_TOTAL_IRQ - 1)
#define BSP_INTERRUPT_VECTOR_INVALID (UINT32_MAX)
#define BSP_IRQ_COUNT (BCM2835_INTC_TOTAL_IRQ)

24
bsps/arm/raspberrypi/start/bspstart.c
View File

@@ -23,6 +23,7 @@
#include <bsp/stackalloc.h>
#include <bsp/raspberrypi.h>
#include <bsp/vc.h>
#include <bsp/fdt.h>
#include <libfdt.h>
@@ -101,6 +102,29 @@ void *raspberrypi_get_reg_of_node(const void *fdt, int node)
return (BUS_TO_PHY((void *) fdt32_to_cpu(val[0])));
}
#ifdef BSP_FDT_IS_SUPPORTED
uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells)
{
uint32_t controller = intr[0];
uint32_t source = intr[1];
switch ( controller ) {
case 0:
return source + BCM2835_IRQ_ID_BASIC_BASE_ID;
break;
case 1:
return source + BCM2835_IRQ_SET1_MIN;
break;
case 2:
return source + BCM2835_IRQ_SET2_MIN;
break;
default:
return BSP_INTERRUPT_VECTOR_INVALID;
break;
}
}
#endif /* BSP_FDT_IS_SUPPORTED */
void bsp_start(void)
{
bcm2835_get_board_spec_entries spec = { 0 };