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/arm/mach-ixp4xx/gtwx5715-pci.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/arm/mach-ixp4xx/gtwx5715-pci.c')
-rw-r--r-- | kernel/arch/arm/mach-ixp4xx/gtwx5715-pci.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/kernel/arch/arm/mach-ixp4xx/gtwx5715-pci.c new file mode 100644 index 000000000..551d114c9 --- /dev/null +++ b/kernel/arch/arm/mach-ixp4xx/gtwx5715-pci.c @@ -0,0 +1,84 @@ +/* + * arch/arm/mach-ixp4xx/gtwx5715-pci.c + * + * Gemtek GTWX5715 (Linksys WRV54G) board setup + * + * Copyright (C) 2004 George T. Joseph + * Derived from Coyote + * + * 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/pci.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <asm/mach-types.h> +#include <mach/hardware.h> +#include <asm/mach/pci.h> + +#define SLOT0_DEVID 0 +#define SLOT1_DEVID 1 +#define INTA 10 /* slot 1 has INTA and INTB crossed */ +#define INTB 11 + +/* + * Slot 0 isn't actually populated with a card connector but + * we initialize it anyway in case a future version has the + * slot populated or someone with good soldering skills has + * some free time. + */ +void __init gtwx5715_pci_preinit(void) +{ + irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW); + irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW); + ixp4xx_pci_preinit(); +} + + +static int __init gtwx5715_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + int rc = -1; + + if ((slot == SLOT0_DEVID && pin == 1) || + (slot == SLOT1_DEVID && pin == 2)) + rc = IXP4XX_GPIO_IRQ(INTA); + else if ((slot == SLOT0_DEVID && pin == 2) || + (slot == SLOT1_DEVID && pin == 1)) + rc = IXP4XX_GPIO_IRQ(INTB); + + printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n", + __func__, slot, pin, rc); + return rc; +} + +struct hw_pci gtwx5715_pci __initdata = { + .nr_controllers = 1, + .ops = &ixp4xx_ops, + .preinit = gtwx5715_pci_preinit, + .setup = ixp4xx_setup, + .map_irq = gtwx5715_map_irq, +}; + +int __init gtwx5715_pci_init(void) +{ + if (machine_is_gtwx5715()) + pci_common_init(>wx5715_pci); + + return 0; +} + +subsys_initcall(gtwx5715_pci_init); |