diff options
Diffstat (limited to 'target/linux/cns3xxx/patches-4.9/110-pci_isolated_interrupts.patch')
| -rw-r--r-- | target/linux/cns3xxx/patches-4.9/110-pci_isolated_interrupts.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/patches-4.9/110-pci_isolated_interrupts.patch b/target/linux/cns3xxx/patches-4.9/110-pci_isolated_interrupts.patch new file mode 100644 index 0000000000..800be813b8 --- /dev/null +++ b/target/linux/cns3xxx/patches-4.9/110-pci_isolated_interrupts.patch @@ -0,0 +1,95 @@ +--- a/arch/arm/mach-cns3xxx/pcie.c ++++ b/arch/arm/mach-cns3xxx/pcie.c +@@ -18,6 +18,7 @@ + #include <linux/io.h> + #include <linux/ioport.h> + #include <linux/interrupt.h> ++#include <linux/irq.h> + #include <linux/ptrace.h> + #include <asm/mach/map.h> + #include "cns3xxx.h" +@@ -27,7 +28,7 @@ struct cns3xxx_pcie { + void __iomem *host_regs; /* PCI config registers for host bridge */ + void __iomem *cfg0_regs; /* PCI Type 0 config registers */ + void __iomem *cfg1_regs; /* PCI Type 1 config registers */ +- unsigned int irqs[2]; ++ unsigned int irqs[5]; + struct resource res_io; + struct resource res_mem; + int port; +@@ -95,7 +96,7 @@ static inline int check_master_abort(str + void __iomem *host_base; + u32 sreg, ereg; + +- host_base = (void __iomem *) cnspci->cfg_bases[CNS3XXX_HOST_TYPE].virtual; ++ host_base = (void __iomem *) cnspci->host_regs; + sreg = __raw_readw(host_base + 0x6) & 0xF900; + ereg = __raw_readl(host_base + 0x104); // Uncorrectable Error Status Reg + +@@ -209,7 +210,7 @@ static struct pci_ops cns3xxx_pcie_ops = + static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) + { + struct cns3xxx_pcie *cnspci = pdev_to_cnspci(dev); +- int irq = cnspci->irqs[!!dev->bus->number]; ++ int irq = cnspci->irqs[!!dev->bus->number + pin - 1]; + + pr_info("PCIe map irq: %04d:%02x:%02x.%02x slot %d, pin %d, irq: %d\n", + pci_domain_nr(dev->bus), dev->bus->number, PCI_SLOT(dev->devfn), +@@ -235,7 +236,13 @@ static struct cns3xxx_pcie cns3xxx_pcie[ + .end = CNS3XXX_PCIE0_HOST_BASE - 1, /* 176 MiB */ + .flags = IORESOURCE_MEM, + }, +- .irqs = { IRQ_CNS3XXX_PCIE0_RC, IRQ_CNS3XXX_PCIE0_DEVICE, }, ++ .irqs = { ++ IRQ_CNS3XXX_PCIE0_RC, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ IRQ_CNS3XXX_PCIE0_DEVICE, ++ }, + .port = 0, + }, + [1] = { +@@ -254,7 +261,13 @@ static struct cns3xxx_pcie cns3xxx_pcie[ + .end = CNS3XXX_PCIE1_HOST_BASE - 1, /* 176 MiB */ + .flags = IORESOURCE_MEM, + }, +- .irqs = { IRQ_CNS3XXX_PCIE1_RC, IRQ_CNS3XXX_PCIE1_DEVICE, }, ++ .irqs = { ++ IRQ_CNS3XXX_PCIE1_RC, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ IRQ_CNS3XXX_PCIE1_DEVICE, ++ }, + .port = 1, + }, + }; +@@ -346,6 +359,14 @@ static int cns3xxx_pcie_abort_handler(un + return 0; + } + ++void __init cns3xxx_pcie_set_irqs(int bus, int *irqs) ++{ ++ int i; ++ ++ for (i = 0; i < 4; i++) ++ cns3xxx_pcie[bus].irqs[i + 1] = irqs[i]; ++} ++ + void __init cns3xxx_pcie_init_late(void) + { + int i; +--- a/arch/arm/mach-cns3xxx/core.h ++++ b/arch/arm/mach-cns3xxx/core.h +@@ -18,8 +18,10 @@ extern void cns3xxx_timer_init(void); + + #ifdef CONFIG_PCI + extern void __init cns3xxx_pcie_init_late(void); ++extern void __init cns3xxx_pcie_set_irqs(int bus, int *irqs); + #else + static inline void __init cns3xxx_pcie_init_late(void) {} ++static inline void cns3xxx_pcie_set_irqs(int bus, int *irqs) {} + #endif + + void __init cns3xxx_map_io(void); |