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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/ide/arm/rapide.c
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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.c125
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 00000000000..3058217767d
--- /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);