[coreboot-gerrit] Patch set updated for coreboot: southbridge/intel/i82801gx: Add option to skip MADT irq override
Damien Zammit (damien@zamaudio.com)
gerrit at coreboot.org
Sun Dec 27 14:38:39 CET 2015
Damien Zammit (damien at zamaudio.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12795
-gerrit
commit 0e7867505b568a2ed61c4caa5eda56a4a6976b26
Author: Damien Zammit <damien at zamaudio.com>
Date: Wed Dec 23 16:54:29 2015 +1100
southbridge/intel/i82801gx: Add option to skip MADT irq override
Provides Kconfig option IRQ9_MADT_OVERRIDE to skip
overriding IRQ9 in MADT. Required on GA-G41M-ES2L mainboard.
Without skipping this irq override, the above board reports:
"irq9: nobody cared" in Linux kernel log and irq 9 gets disabled.
Change-Id: I865ad79c7c89f6eaf91653fbda5762542702274c
Signed-off-by: Damien Zammit <damien at zamaudio.com>
---
src/southbridge/intel/i82801gx/Kconfig | 6 ++++++
src/southbridge/intel/i82801gx/lpc.c | 8 ++++++--
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/src/southbridge/intel/i82801gx/Kconfig b/src/southbridge/intel/i82801gx/Kconfig
index c435b99..4d747fc 100644
--- a/src/southbridge/intel/i82801gx/Kconfig
+++ b/src/southbridge/intel/i82801gx/Kconfig
@@ -25,6 +25,12 @@ config SOUTHBRIDGE_INTEL_I82801GX
if SOUTHBRIDGE_INTEL_I82801GX
+config IRQ9_MADT_OVERRIDE
+ bool
+ default y
+ help
+ When unset, prevents ACPI from overriding IRQ9 in MADT
+
config EHCI_BAR
hex
default 0xfef00000
diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c
index 4e9711c..407d336 100644
--- a/src/southbridge/intel/i82801gx/lpc.c
+++ b/src/southbridge/intel/i82801gx/lpc.c
@@ -474,9 +474,13 @@ unsigned long acpi_fill_madt(unsigned long current)
/* INT_SRC_OVR */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 0, 2, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE);
- current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
- current, 0, 9, 9, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_LEVEL);
+ if (IS_ENABLED(CONFIG_IRQ9_MADT_OVERRIDE)) {
+ current += acpi_create_madt_irqoverride(
+ (acpi_madt_irqoverride_t *) current,
+ 0, 9, 9, MP_IRQ_POLARITY_HIGH
+ | MP_IRQ_TRIGGER_LEVEL);
+ }
return current;
}
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