diff options
Diffstat (limited to 'drivers/net/ibm_emac/ibm_emac_tah.c')
-rw-r--r-- | drivers/net/ibm_emac/ibm_emac_tah.c | 110 |
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 3c2d5ba522a1..000000000000 --- 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; -} |