From cf752fe9666919e5c403a9dac09a70cbaf64fa1f Mon Sep 17 00:00:00 2001 From: Martin Roth Date: Wed, 2 Dec 2015 16:20:53 -0700 Subject: [PATCH] fsp_baytrail: Change A, A, A, A IRQ routing to A, A, A, B Devices that have their interrupt routing set to A, A, A, A don't get any interrupt values assigned because that series evaluates to 0. The code that sets the interrupt values checks to make sure a value is set by verifying that it's not 0. On Bay Trail, these are all single-function graphics devices, so by changing one of the unused interrupt lines from A to any other value, it assigns the values correctly. This issue did not affect ACPI interrupt routing. This is just a workaround, and the root issue still needs to be fixed. Change-Id: I78866e3e0079435037e457a4fb04979254b56ee2 Signed-off-by: Martin Roth Reviewed-on: https://review.coreboot.org/12629 Tested-by: build bot (Jenkins) Reviewed-by: Ben Gardner Reviewed-by: Stefan Reinauer --- src/mainboard/intel/bayleybay_fsp/irqroute.h | 3 ++- src/mainboard/intel/minnowmax/irqroute.h | 3 ++- src/mainboard/siemens/mc_tcu3/irqroute.h | 3 ++- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/src/mainboard/intel/bayleybay_fsp/irqroute.h b/src/mainboard/intel/bayleybay_fsp/irqroute.h index e3523e9d26..8b6a46ed54 100644 --- a/src/mainboard/intel/bayleybay_fsp/irqroute.h +++ b/src/mainboard/intel/bayleybay_fsp/irqroute.h @@ -44,8 +44,9 @@ #define PCIE_BRIDGE_IRQ_ROUTES \ PCIE_BRIDGE_DEV(RP, BRIDGE1_DEV, E, F, G, H) +/* Devices set as A, A, A, A evaluate as 0, and don't get set */ #define PCI_DEV_PIRQ_ROUTES \ - PCI_DEV_PIRQ_ROUTE(GFX_DEV, A, A, A, A), \ + PCI_DEV_PIRQ_ROUTE(GFX_DEV, A, A, A, B), \ PCI_DEV_PIRQ_ROUTE(EMMC_DEV, D, E, F, G), \ PCI_DEV_PIRQ_ROUTE(SDIO_DEV, B, A, A, A), \ PCI_DEV_PIRQ_ROUTE(SD_DEV, C, A, A, A), \ diff --git a/src/mainboard/intel/minnowmax/irqroute.h b/src/mainboard/intel/minnowmax/irqroute.h index f8660693e5..0b577bcc40 100644 --- a/src/mainboard/intel/minnowmax/irqroute.h +++ b/src/mainboard/intel/minnowmax/irqroute.h @@ -45,8 +45,9 @@ #define PCIE_BRIDGE_IRQ_ROUTES \ PCIE_BRIDGE_DEV(RP, BRIDGE1_DEV, E, F, G, H) +/* Devices set as A, A, A, A evaluate as 0, and don't get set */ #define PCI_DEV_PIRQ_ROUTES \ - PCI_DEV_PIRQ_ROUTE(GFX_DEV, A, A, A, A), \ + PCI_DEV_PIRQ_ROUTE(GFX_DEV, A, A, A, B), \ PCI_DEV_PIRQ_ROUTE(EMMC_DEV, D, E, F, G), \ PCI_DEV_PIRQ_ROUTE(SDIO_DEV, B, A, A, A), \ PCI_DEV_PIRQ_ROUTE(SD_DEV, C, A, A, A), \ diff --git a/src/mainboard/siemens/mc_tcu3/irqroute.h b/src/mainboard/siemens/mc_tcu3/irqroute.h index e3523e9d26..8b6a46ed54 100644 --- a/src/mainboard/siemens/mc_tcu3/irqroute.h +++ b/src/mainboard/siemens/mc_tcu3/irqroute.h @@ -44,8 +44,9 @@ #define PCIE_BRIDGE_IRQ_ROUTES \ PCIE_BRIDGE_DEV(RP, BRIDGE1_DEV, E, F, G, H) +/* Devices set as A, A, A, A evaluate as 0, and don't get set */ #define PCI_DEV_PIRQ_ROUTES \ - PCI_DEV_PIRQ_ROUTE(GFX_DEV, A, A, A, A), \ + PCI_DEV_PIRQ_ROUTE(GFX_DEV, A, A, A, B), \ PCI_DEV_PIRQ_ROUTE(EMMC_DEV, D, E, F, G), \ PCI_DEV_PIRQ_ROUTE(SDIO_DEV, B, A, A, A), \ PCI_DEV_PIRQ_ROUTE(SD_DEV, C, A, A, A), \