soc/intel/common: Add function to lpc_lib to return PIRQ routing
In order to fill out static entries for a _PRT table for
soc/intel/common, the PIRQ<->IRQ mapping is required. This patch adds
a function lpc_get_pch_pirq_routing() which returns this mapping.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ib215fba54573c50a88aa4584442bd8d27ae017be
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50858
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c
index 73a47279..4950940 100644
--- a/src/soc/intel/common/block/lpc/lpc_lib.c
+++ b/src/soc/intel/common/block/lpc/lpc_lib.c
@@ -15,6 +15,7 @@
#include <soc/irq.h>
#include <soc/pci_devs.h>
#include <soc/pcr_ids.h>
+#include <southbridge/intel/common/acpi_pirq_gen.h>
uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables)
{
@@ -297,6 +298,23 @@
io_apic_write((void *)IO_APIC_ADDR, 0x03, 0x01);
}
+static const uint8_t pch_interrupt_routing[PIRQ_COUNT] = {
+ [PIRQ_A] = PCH_IRQ11,
+ [PIRQ_B] = PCH_IRQ10,
+ [PIRQ_C] = PCH_IRQ11,
+ [PIRQ_D] = PCH_IRQ11,
+ [PIRQ_E] = PCH_IRQ11,
+ [PIRQ_F] = PCH_IRQ11,
+ [PIRQ_G] = PCH_IRQ11,
+ [PIRQ_H] = PCH_IRQ11,
+};
+
+const uint8_t *lpc_get_pic_pirq_routing(size_t *num)
+{
+ *num = ARRAY_SIZE(pch_interrupt_routing);
+ return pch_interrupt_routing;
+}
+
/*
* PIRQ[n]_ROUT[3:0] - PIRQ Routing Control
* 0x00 - 0000 = Reserved
@@ -321,17 +339,6 @@
void pch_pirq_init(void)
{
const struct device *irq_dev;
- uint8_t pch_interrupt_routing[MAX_PXRC_CONFIG];
-
- pch_interrupt_routing[0] = PCH_IRQ11;
- pch_interrupt_routing[1] = PCH_IRQ10;
- pch_interrupt_routing[2] = PCH_IRQ11;
- pch_interrupt_routing[3] = PCH_IRQ11;
- pch_interrupt_routing[4] = PCH_IRQ11;
- pch_interrupt_routing[5] = PCH_IRQ11;
- pch_interrupt_routing[6] = PCH_IRQ11;
- pch_interrupt_routing[7] = PCH_IRQ11;
-
itss_irq_init(pch_interrupt_routing);
for (irq_dev = all_devices; irq_dev; irq_dev = irq_dev->next) {