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authorRaul E Rangel <rrangel@chromium.org>2020-01-31 12:53:45 -0700
committerFelix Held <felix-coreboot@felixheld.de>2020-05-26 14:37:22 +0000
commit93b62e61709be4cd69232dd05a8097af5a7dd297 (patch)
treed5b94e7acc977942a6c4222d5f718e4a5b411dba /src/soc/amd
parenta0bf2d6cf5135214a3d96cc980b7255b0eb2c9c4 (diff)
downloadcoreboot-93b62e61709be4cd69232dd05a8097af5a7dd297.tar.xz
soc/amd/picasso: Give the mainboard the ability to modify the MADT table
By default legacy ISA IRQs use edge triggering. Depending on what devices are used the IRQ types might need to be changed. We add a setting to the device tree to allow the mainboard to configure the IRS IRQs. BUG=b:145102877 TEST=Booted trembyle and was able to use the keyboard. Change-Id: Ie95e8cc7ca835fb60bee8f10d5f28def6c2801dc Signed-off-by: Raul E Rangel <rrangel@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2033493 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41577 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/amd')
-rw-r--r--src/soc/amd/picasso/acpi.c23
-rw-r--r--src/soc/amd/picasso/chip.h12
2 files changed, 33 insertions, 2 deletions
diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
index ac23d0f1e9..2eea6f9aeb 100644
--- a/src/soc/amd/picasso/acpi.c
+++ b/src/soc/amd/picasso/acpi.c
@@ -10,6 +10,7 @@
#include <acpi/acpigen.h>
#include <device/pci_ops.h>
#include <arch/ioapic.h>
+#include <arch/smp/mpspec.h>
#include <cpu/x86/smm.h>
#include <cbmem.h>
#include <device/device.h>
@@ -23,6 +24,7 @@
#include <soc/nvs.h>
#include <soc/gpio.h>
#include <version.h>
+#include "chip.h"
unsigned long acpi_fill_mcfg(unsigned long current)
{
@@ -38,6 +40,11 @@ unsigned long acpi_fill_mcfg(unsigned long current)
unsigned long acpi_fill_madt(unsigned long current)
{
+ const struct soc_amd_picasso_config *cfg = config_of_soc();
+ unsigned int i;
+ uint8_t irq;
+ uint8_t flags;
+
/* create all subtables for processors */
current = acpi_create_madt_lapics(current);
@@ -51,8 +58,20 @@ unsigned long acpi_fill_madt(unsigned long current)
/* 5 mean: 0101 --> Edge-triggered, Active high */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 0, 2, 0);
- current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
- current, 0, 9, 9, 0xf);
+ current += acpi_create_madt_irqoverride(
+ (acpi_madt_irqoverride_t *)current, 0, 9, 9,
+ MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
+
+ for (i = 0; i < ARRAY_SIZE(cfg->irq_override); ++i) {
+ irq = cfg->irq_override[i].irq;
+ flags = cfg->irq_override[i].flags;
+
+ if (!flags)
+ continue;
+
+ current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 0,
+ irq, irq, flags);
+ }
/* create all subtables for processors */
current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current,
diff --git a/src/soc/amd/picasso/chip.h b/src/soc/amd/picasso/chip.h
index 80cb1ceab2..e52751a2eb 100644
--- a/src/soc/amd/picasso/chip.h
+++ b/src/soc/amd/picasso/chip.h
@@ -12,6 +12,7 @@
#include <soc/iomap.h>
#include <soc/southbridge.h>
#include <acpi/acpi_device.h>
+#include <arch/smp/mpspec.h>
struct soc_amd_picasso_config {
struct soc_amd_common_config common_config;
@@ -34,6 +35,17 @@ struct soc_amd_picasso_config {
I2S_PINS_UNCONF = 7, /* All pads will be input mode */
} acp_pin_cfg;
+ /**
+ * IRQ 0 - 15 have a default trigger of edge and default polarity of high.
+ * If you have a device that requires a different configuration you can override the
+ * settings here.
+ */
+ struct {
+ uint8_t irq;
+ /* See MP_IRQ_* from mpspec.h */
+ uint8_t flags;
+ } irq_override[16];
+
/* Options for these are in src/arch/x86/include/acpi/acpi.h */
uint8_t fadt_pm_profile;
uint16_t fadt_boot_arch;