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author | Luka Perkov <luka@openwrt.org> | 2013-10-30 23:31:26 +0000 |
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committer | Luka Perkov <luka@openwrt.org> | 2013-10-30 23:31:26 +0000 |
commit | 672a8cd6ba72820f24a02dd237edaec3cd8973c5 (patch) | |
tree | bc721f84fd39a89e6881ddf06389b8ac0ab87d5f /target/linux/imx6/patches-3.10/0034-PCI-imx6-add-support-for-legacy-irqs.patch | |
parent | 8effe85ada423f2b61d863befd6e9b2430851d2d (diff) | |
download | upstream-672a8cd6ba72820f24a02dd237edaec3cd8973c5.tar.gz upstream-672a8cd6ba72820f24a02dd237edaec3cd8973c5.tar.bz2 upstream-672a8cd6ba72820f24a02dd237edaec3cd8973c5.zip |
imx6: update patches
Changes include PCI fixes and various upstream pending patches.
Signed-off-by: Luka Perkov <luka@openwrt.org>
SVN-Revision: 38624
Diffstat (limited to 'target/linux/imx6/patches-3.10/0034-PCI-imx6-add-support-for-legacy-irqs.patch')
-rw-r--r-- | target/linux/imx6/patches-3.10/0034-PCI-imx6-add-support-for-legacy-irqs.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/imx6/patches-3.10/0034-PCI-imx6-add-support-for-legacy-irqs.patch b/target/linux/imx6/patches-3.10/0034-PCI-imx6-add-support-for-legacy-irqs.patch new file mode 100644 index 0000000000..1f81e4338c --- /dev/null +++ b/target/linux/imx6/patches-3.10/0034-PCI-imx6-add-support-for-legacy-irqs.patch @@ -0,0 +1,43 @@ +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 +@@ -447,7 +447,26 @@ 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 = { |