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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-27 16:18:30 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-27 16:18:30 -0800 |
commit | 8d37a371b6869920e6c40c495c68eabba1ef3909 (patch) | |
tree | dad784512b13832f4f5494cfe0791965c6a2b0f6 /drivers/pcmcia/o2micro.h | |
parent | ef1a8de8ea004a689b2aa9f5cefcba2b1a0262f2 (diff) | |
parent | 7b4884ca8853a638df0eb5d251d80d67777b8b1a (diff) | |
download | op-kernel-dev-8d37a371b6869920e6c40c495c68eabba1ef3909.zip op-kernel-dev-8d37a371b6869920e6c40c495c68eabba1ef3909.tar.gz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits)
pcmcia: validate late-added resources
pcmcia: allow for extension of resource interval
pcmcia: remove useless msleep in ds.c
pcmcia: use read_cis_mem return value
pcmcia: handle error in serial_cs config calls
pcmcia: add locking to pcmcia_{read,write}_cis_mem
pcmcia: avoid prod_id memleak
pcmcia: avoid sysfs-related lockup for cardbus
pcmcia: use state machine for extended requery
pcmcia: delay re-scanning and re-querying of PCMCIA bus
pcmcia: use pccardd to handle eject, insert, suspend and resume requests
pcmcia: use ops_mutex for rsrc_{mgr,nonstatic} locking
pcmcia: use mutex for dynid lock
pcmcia: assert locking to struct pcmcia_device
pcmcia: add locking documentation
pcmcia: simplify locking
pcmcia: add locking to struct pcmcia_socket->pcmcia_state()
pcmcia: protect s->device_count
pcmcia: properly lock skt->irq, skt->irq_mask
pcmcia: lock ops->set_socket
...
Diffstat (limited to 'drivers/pcmcia/o2micro.h')
-rw-r--r-- | drivers/pcmcia/o2micro.h | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/drivers/pcmcia/o2micro.h b/drivers/pcmcia/o2micro.h index 624442f..e74beba 100644 --- a/drivers/pcmcia/o2micro.h +++ b/drivers/pcmcia/o2micro.h @@ -116,13 +116,12 @@ static int o2micro_override(struct yenta_socket *socket) * from Eric Still, 02Micro. */ u8 a, b; + bool use_speedup; if (PCI_FUNC(socket->dev->devfn) == 0) { a = config_readb(socket, O2_RESERVED1); b = config_readb(socket, O2_RESERVED2); - - dev_printk(KERN_INFO, &socket->dev->dev, - "O2: res at 0x94/0xD4: %02x/%02x\n", a, b); + dev_dbg(&socket->dev->dev, "O2: 0x94/0xD4: %02x/%02x\n", a, b); switch (socket->dev->device) { /* @@ -135,23 +134,37 @@ static int o2micro_override(struct yenta_socket *socket) case PCI_DEVICE_ID_O2_6812: case PCI_DEVICE_ID_O2_6832: case PCI_DEVICE_ID_O2_6836: - case PCI_DEVICE_ID_O2_6933: - dev_printk(KERN_INFO, &socket->dev->dev, - "Yenta O2: old bridge, disabling read " - "prefetch/write burst\n"); - config_writeb(socket, O2_RESERVED1, - a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); - config_writeb(socket, O2_RESERVED2, - b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); + case PCI_DEVICE_ID_O2_6933: + use_speedup = false; break; - default: - dev_printk(KERN_INFO , &socket->dev->dev, - "O2: enabling read prefetch/write burst\n"); + use_speedup = true; + break; + } + + /* the user may override our decision */ + if (strcasecmp(o2_speedup, "on") == 0) + use_speedup = true; + else if (strcasecmp(o2_speedup, "off") == 0) + use_speedup = false; + else if (strcasecmp(o2_speedup, "default") != 0) + dev_warn(&socket->dev->dev, + "O2: Unknown parameter, using 'default'"); + + if (use_speedup) { + dev_info(&socket->dev->dev, + "O2: enabling read prefetch/write burst\n"); + config_writeb(socket, O2_RESERVED1, + a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + config_writeb(socket, O2_RESERVED2, + b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + } else { + dev_info(&socket->dev->dev, + "O2: disabling read prefetch/write burst\n"); config_writeb(socket, O2_RESERVED1, - a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); config_writeb(socket, O2_RESERVED2, - b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); } } |