diff options
Diffstat (limited to 'target/linux/imx6/patches-3.12/0034-PCI-imx6-add-support-for-legacy-irqs.patch')
| -rw-r--r-- | target/linux/imx6/patches-3.12/0034-PCI-imx6-add-support-for-legacy-irqs.patch | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/target/linux/imx6/patches-3.12/0034-PCI-imx6-add-support-for-legacy-irqs.patch b/target/linux/imx6/patches-3.12/0034-PCI-imx6-add-support-for-legacy-irqs.patch deleted file mode 100644 index 03f29f4..0000000 --- a/target/linux/imx6/patches-3.12/0034-PCI-imx6-add-support-for-legacy-irqs.patch +++ /dev/null @@ -1,43 +0,0 @@ -From: Tim Harvey <tharvey@gateworks.com> -Subject: [PATCH] PCI: imx6: add support for legacy irqs - -The i.MX6 supports legacy IRQ's via 155,154,153,152. When devices -are behind a PCIe-to-PCIe switch (at least for the TI XIO2001) the -mapping is reversed from when they are behind a PCIe switch. - -This patch still needs some review and clarification before going -upstream. ---- - drivers/pci/host/pcie-designware.c | 21 ++++++++++++++++++++- - 1 file changed, 20 insertions(+), 1 deletion(-) - ---- a/drivers/pci/host/pcie-designware.c -+++ b/drivers/pci/host/pcie-designware.c -@@ -482,7 +482,26 @@ int dw_pcie_map_irq(const struct pci_dev - { - struct pcie_port *pp = sys_to_pcie(dev->bus->sysdata); - -- return pp->irq; -+ /* TI XIO2001 PCIe-to-PCI bridge IRQs are flipped it seems */ -+ if ( dev->bus && dev->bus->self -+ && (dev->bus->self->vendor == 0x104c) -+ && (dev->bus->self->device == 0x8240)) { -+ switch (pin) { -+ case 1: return pp->irq - 3; -+ case 2: return pp->irq - 2; -+ case 3: return pp->irq - 1; -+ case 4: return pp->irq; -+ default: return -1; -+ } -+ } else { -+ switch (pin) { -+ case 1: return pp->irq; -+ case 2: return pp->irq - 1; -+ case 3: return pp->irq - 2; -+ case 4: return pp->irq - 3; -+ default: return -1; -+ } -+ } - } - - static struct hw_pci dw_pci = { |