diff options
author | 2015-08-04 12:17:53 -0700 | |
---|---|---|
committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/ide/ide-legacy.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/drivers/ide/ide-legacy.c')
-rw-r--r-- | kernel/drivers/ide/ide-legacy.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/kernel/drivers/ide/ide-legacy.c b/kernel/drivers/ide/ide-legacy.c new file mode 100644 index 000000000..30fe36307 --- /dev/null +++ b/kernel/drivers/ide/ide-legacy.c @@ -0,0 +1,58 @@ +#include <linux/kernel.h> +#include <linux/export.h> +#include <linux/ide.h> + +static void ide_legacy_init_one(struct ide_hw **hws, struct ide_hw *hw, + u8 port_no, const struct ide_port_info *d, + unsigned long config) +{ + unsigned long base, ctl; + int irq; + + if (port_no == 0) { + base = 0x1f0; + ctl = 0x3f6; + irq = 14; + } else { + base = 0x170; + ctl = 0x376; + irq = 15; + } + + if (!request_region(base, 8, d->name)) { + printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", + d->name, base, base + 7); + return; + } + + if (!request_region(ctl, 1, d->name)) { + printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", + d->name, ctl); + release_region(base, 8); + return; + } + + ide_std_init_ports(hw, base, ctl); + hw->irq = irq; + hw->config = config; + + hws[port_no] = hw; +} + +int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) +{ + struct ide_hw hw[2], *hws[] = { NULL, NULL }; + + memset(&hw, 0, sizeof(hw)); + + if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) + ide_legacy_init_one(hws, &hw[0], 0, d, config); + ide_legacy_init_one(hws, &hw[1], 1, d, config); + + if (hws[0] == NULL && hws[1] == NULL && + (d->host_flags & IDE_HFLAG_SINGLE)) + return -ENOENT; + + return ide_host_add(d, hws, 2, NULL); +} +EXPORT_SYMBOL_GPL(ide_legacy_device_add); |