diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/ide/arm/rapide.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/ide/arm/rapide.c')
-rw-r--r-- | drivers/ide/arm/rapide.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c new file mode 100644 index 000000000000..3058217767d6 --- /dev/null +++ b/drivers/ide/arm/rapide.c @@ -0,0 +1,125 @@ +/* + * linux/drivers/ide/arm/rapide.c + * + * Copyright (c) 1996-2002 Russell King. + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/blkdev.h> +#include <linux/errno.h> +#include <linux/ide.h> +#include <linux/init.h> + +#include <asm/ecard.h> + +/* + * Something like this really should be in generic code, but isn't. + */ +static ide_hwif_t * +rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq) +{ + unsigned long port = (unsigned long)base; + ide_hwif_t *hwif; + int index, i; + + for (index = 0; index < MAX_HWIFS; ++index) { + hwif = ide_hwifs + index; + if (hwif->io_ports[IDE_DATA_OFFSET] == port) + goto found; + } + + for (index = 0; index < MAX_HWIFS; ++index) { + hwif = ide_hwifs + index; + if (hwif->io_ports[IDE_DATA_OFFSET] == 0) + goto found; + } + + return NULL; + + found: + for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { + hwif->hw.io_ports[i] = port; + hwif->io_ports[i] = port; + port += sz; + } + hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; + hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; + hwif->hw.irq = hwif->irq = irq; + hwif->mmio = 2; + default_hwif_mmiops(hwif); + + return hwif; +} + +static int __devinit +rapide_probe(struct expansion_card *ec, const struct ecard_id *id) +{ + ide_hwif_t *hwif; + void __iomem *base; + int ret; + + ret = ecard_request_resources(ec); + if (ret) + goto out; + + base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), + ecard_resource_len(ec, ECARD_RES_MEMC)); + if (!base) { + ret = -ENOMEM; + goto release; + } + + hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq); + if (hwif) { + hwif->hwif_data = base; + hwif->gendev.parent = &ec->dev; + hwif->noprobe = 0; + probe_hwif_init(hwif); + create_proc_ide_interfaces(); + ecard_set_drvdata(ec, hwif); + goto out; + } + + iounmap(base); + release: + ecard_release_resources(ec); + out: + return ret; +} + +static void __devexit rapide_remove(struct expansion_card *ec) +{ + ide_hwif_t *hwif = ecard_get_drvdata(ec); + + ecard_set_drvdata(ec, NULL); + + /* there must be a better way */ + ide_unregister(hwif - ide_hwifs); + iounmap(hwif->hwif_data); + ecard_release_resources(ec); +} + +static struct ecard_id rapide_ids[] = { + { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 }, + { 0xffff, 0xffff } +}; + +static struct ecard_driver rapide_driver = { + .probe = rapide_probe, + .remove = __devexit_p(rapide_remove), + .id_table = rapide_ids, + .drv = { + .name = "rapide", + }, +}; + +static int __init rapide_init(void) +{ + return ecard_register_driver(&rapide_driver); +} + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Yellowstone RAPIDE driver"); + +module_init(rapide_init); |