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mb/amd/mandolin: introduce mb_get_fch_irq_mapping 

Introduce mb_get_fch_irq_mapping to access the FCH IRQ routing mapping
information and use it in init_tables to get the mapping instead of
directly accessing the array's contents. This is a preparation to move
the init_tables implementation to the common AMD SoC code in a later
patch.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9c39ea9de5ebbf70d2c5a87bfdfe270796548c5c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68847
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This commit is contained in:
Felix Held 2022-10-25 18:59:14 +02:00
parent 067f703329
commit 3ad216be1d
1 changed files with 14 additions and 6 deletions
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20
src/mainboard/amd/mandolin/mainboard.c
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@ -51,18 +51,26 @@ static const struct fch_irq_routing fch_irq_map[] = {
{ PIRQ_MISC2, 0x00, 0x00 }, { PIRQ_MISC2, 0x00, 0x00 },
}; };
static const struct fch_irq_routing *mb_get_fch_irq_mapping(size_t *length)
{
*length = ARRAY_SIZE(fch_irq_map);
return fch_irq_map;
}
static void init_tables(void) static void init_tables(void)
{ {
const struct fch_irq_routing *entry; const struct fch_irq_routing *mb_irq_map;
int i; size_t mb_fch_irq_mapping_table_size;
size_t i;
mb_irq_map = mb_get_fch_irq_mapping(&mb_fch_irq_mapping_table_size);
memset(fch_pic_routing, PIRQ_NC, sizeof(fch_pic_routing)); memset(fch_pic_routing, PIRQ_NC, sizeof(fch_pic_routing));
memset(fch_apic_routing, PIRQ_NC, sizeof(fch_apic_routing)); memset(fch_apic_routing, PIRQ_NC, sizeof(fch_apic_routing));
for (i = 0; i < ARRAY_SIZE(fch_irq_map); i++) { for (i = 0; i < mb_fch_irq_mapping_table_size; i++) {
entry = fch_irq_map + i; fch_pic_routing[mb_irq_map[i].intr_index] = mb_irq_map[i].pic_irq_num;
fch_pic_routing[entry->intr_index] = entry->pic_irq_num; fch_apic_routing[mb_irq_map[i].intr_index] = mb_irq_map[i].apic_irq_num;
fch_apic_routing[entry->intr_index] = entry->apic_irq_num;
} }
} }