diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/pci/fixup-ip32.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/pci/fixup-ip32.c')
-rw-r--r-- | kernel/arch/mips/pci/fixup-ip32.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/kernel/arch/mips/pci/fixup-ip32.c b/kernel/arch/mips/pci/fixup-ip32.c new file mode 100644 index 000000000..133685e21 --- /dev/null +++ b/kernel/arch/mips/pci/fixup-ip32.c @@ -0,0 +1,51 @@ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <asm/ip32/ip32_ints.h> +/* + * O2 has up to 5 PCI devices connected into the MACE bridge. The device + * map looks like this: + * + * 0 aic7xxx 0 + * 1 aic7xxx 1 + * 2 expansion slot + * 3 N/C + * 4 N/C + */ + +#define SCSI0 MACEPCI_SCSI0_IRQ +#define SCSI1 MACEPCI_SCSI1_IRQ +#define INTA0 MACEPCI_SLOT0_IRQ +#define INTA1 MACEPCI_SLOT1_IRQ +#define INTA2 MACEPCI_SLOT2_IRQ +#define INTB MACEPCI_SHARED0_IRQ +#define INTC MACEPCI_SHARED1_IRQ +#define INTD MACEPCI_SHARED2_IRQ +static char irq_tab_mace[][5] __initdata = { + /* Dummy INT#A INT#B INT#C INT#D */ + {0, 0, 0, 0, 0}, /* This is placeholder row - never used */ + {0, SCSI0, SCSI0, SCSI0, SCSI0}, + {0, SCSI1, SCSI1, SCSI1, SCSI1}, + {0, INTA0, INTB, INTC, INTD}, + {0, INTA1, INTC, INTD, INTB}, + {0, INTA2, INTD, INTB, INTC}, +}; + + +/* + * Given a PCI slot number (a la PCI_SLOT(...)) and the interrupt pin of + * the device (1-4 => A-D), tell what irq to use. Note that we don't + * in theory have slots 4 and 5, and we never normally use the shared + * irqs. I suppose a device without a pin A will thank us for doing it + * right if there exists such a broken piece of crap. + */ +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + return irq_tab_mace[slot][pin]; +} + +/* Do platform specific device initialization at pci_enable_device() time */ +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + return 0; +} |