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path: root/drivers/net/ibm_emac/ibm_emac_tah.c
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Diffstat (limited to 'drivers/net/ibm_emac/ibm_emac_tah.c')
-rw-r--r--drivers/net/ibm_emac/ibm_emac_tah.c110
1 files changed, 0 insertions, 110 deletions
diff --git a/drivers/net/ibm_emac/ibm_emac_tah.c b/drivers/net/ibm_emac/ibm_emac_tah.c
deleted file mode 100644
index 3c2d5ba522a..00000000000
--- a/drivers/net/ibm_emac/ibm_emac_tah.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * drivers/net/ibm_emac/ibm_emac_tah.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
- *
- * Copyright 2004 MontaVista Software, Inc.
- * Matt Porter <mporter@kernel.crashing.org>
- *
- * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net>
- *
- * 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.
- */
-#include <asm/io.h>
-
-#include "ibm_emac_core.h"
-
-static int __init tah_init(struct ocp_device *ocpdev)
-{
- struct tah_regs *p;
-
- if (ocp_get_drvdata(ocpdev)) {
- printk(KERN_ERR "tah%d: already in use!\n", ocpdev->def->index);
- return -EBUSY;
- }
-
- /* Initialize TAH and enable IPv4 checksum verification, no TSO yet */
- p = (struct tah_regs *)ioremap(ocpdev->def->paddr, sizeof(*p));
- if (!p) {
- printk(KERN_ERR "tah%d: could not ioremap device registers!\n",
- ocpdev->def->index);
- return -ENOMEM;
- }
- ocp_set_drvdata(ocpdev, p);
- __tah_reset(ocpdev);
-
- return 0;
-}
-
-int __init tah_attach(void *emac)
-{
- struct ocp_enet_private *dev = emac;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- /* Check if we need to attach to a TAH */
- if (emacdata->tah_idx >= 0) {
- dev->tah_dev = ocp_find_device(OCP_ANY_ID, OCP_FUNC_TAH,
- emacdata->tah_idx);
- if (!dev->tah_dev) {
- printk(KERN_ERR "emac%d: unknown tah%d!\n",
- dev->def->index, emacdata->tah_idx);
- return -ENODEV;
- }
- if (tah_init(dev->tah_dev)) {
- printk(KERN_ERR
- "emac%d: tah%d initialization failed!\n",
- dev->def->index, emacdata->tah_idx);
- return -ENODEV;
- }
- }
- return 0;
-}
-
-void __tah_fini(struct ocp_device *ocpdev)
-{
- struct tah_regs *p = ocp_get_drvdata(ocpdev);
- BUG_ON(!p);
- ocp_set_drvdata(ocpdev, NULL);
- iounmap((void *)p);
-}
-
-void __tah_reset(struct ocp_device *ocpdev)
-{
- struct tah_regs *p = ocp_get_drvdata(ocpdev);
- int n;
-
- /* Reset TAH */
- out_be32(&p->mr, TAH_MR_SR);
- n = 100;
- while ((in_be32(&p->mr) & TAH_MR_SR) && n)
- --n;
-
- if (unlikely(!n))
- printk(KERN_ERR "tah%d: reset timeout\n", ocpdev->def->index);
-
- /* 10KB TAH TX FIFO accomodates the max MTU of 9000 */
- out_be32(&p->mr,
- TAH_MR_CVR | TAH_MR_ST_768 | TAH_MR_TFS_10KB | TAH_MR_DTFP |
- TAH_MR_DIG);
-}
-
-int __tah_get_regs_len(struct ocp_device *ocpdev)
-{
- return sizeof(struct emac_ethtool_regs_subhdr) +
- sizeof(struct tah_regs);
-}
-
-void *tah_dump_regs(struct ocp_device *ocpdev, void *buf)
-{
- struct tah_regs *dev = ocp_get_drvdata(ocpdev);
- struct emac_ethtool_regs_subhdr *hdr = buf;
- struct tah_regs *regs = (struct tah_regs *)(hdr + 1);
-
- hdr->version = 0;
- hdr->index = ocpdev->def->index;
- memcpy_fromio(regs, dev, sizeof(struct tah_regs));
- return regs + 1;
-}