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/pci-emma2rh.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/pci-emma2rh.c')
-rw-r--r-- | kernel/arch/mips/pci/pci-emma2rh.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/kernel/arch/mips/pci/pci-emma2rh.c b/kernel/arch/mips/pci/pci-emma2rh.c new file mode 100644 index 000000000..773e34ff4 --- /dev/null +++ b/kernel/arch/mips/pci/pci-emma2rh.c @@ -0,0 +1,85 @@ +/* + * Copyright (C) NEC Electronics Corporation 2004-2006 + * + * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c + * + * Copyright 2001 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/pci.h> + +#include <asm/bootinfo.h> + +#include <asm/emma/emma2rh.h> + +static struct resource pci_io_resource = { + .name = "pci IO space", + .start = EMMA2RH_PCI_IO_BASE, + .end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO, +}; + +static struct resource pci_mem_resource = { + .name = "pci memory space", + .start = EMMA2RH_PCI_MEM_BASE, + .end = EMMA2RH_PCI_MEM_BASE + EMMA2RH_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +extern struct pci_ops emma2rh_pci_ops; + +static struct pci_controller emma2rh_pci_controller = { + .pci_ops = &emma2rh_pci_ops, + .mem_resource = &pci_mem_resource, + .io_resource = &pci_io_resource, + .mem_offset = -0x04000000, + .io_offset = 0, +}; + +static void __init emma2rh_pci_init(void) +{ + /* setup PCI interface */ + emma2rh_out32(EMMA2RH_PCI_ARBIT_CTR, 0x70f); + + emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x80000a18); + emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_COMMAND, + PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_CAP_LIST | + PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); + emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_0, 0x10000000); + emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_1, 0x00000000); + + emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x12000000 | 0x218); + emma2rh_out32(EMMA2RH_PCI_IWIN1_CTR, 0x18000000 | 0x600); + emma2rh_out32(EMMA2RH_PCI_INIT_ESWP, 0x00000200); + + emma2rh_out32(EMMA2RH_PCI_TWIN_CTR, 0x00009200); + emma2rh_out32(EMMA2RH_PCI_TWIN_BADR, 0x00000000); + emma2rh_out32(EMMA2RH_PCI_TWIN0_DADR, 0x00000000); + emma2rh_out32(EMMA2RH_PCI_TWIN1_DADR, 0x00000000); +} + +static int __init emma2rh_pci_setup(void) +{ + emma2rh_pci_init(); + register_pci_controller(&emma2rh_pci_controller); + return 0; +} + +arch_initcall(emma2rh_pci_setup); |