1 files changed, 0 insertions, 374 deletions

diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
deleted file mode 100644
index 5f91628209eb..000000000000
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
- *
- * Authors: 	Shlomi Gridish <gridish@freescale.com>
- * 		Li Yang <leoli@freescale.com>
- *
- * Description:
- * QE UCC Slow API Set - UCC Slow specific routines implementations.
- *
- * 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 <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/stddef.h>
-#include <linux/interrupt.h>
-#include <linux/err.h>
-#include <linux/export.h>
-
-#include <asm/io.h>
-#include <asm/immap_qe.h>
-#include <asm/qe.h>
-
-#include <asm/ucc.h>
-#include <asm/ucc_slow.h>
-
-u32 ucc_slow_get_qe_cr_subblock(int uccs_num)
-{
-	switch (uccs_num) {
-	case 0: return QE_CR_SUBBLOCK_UCCSLOW1;
-	case 1: return QE_CR_SUBBLOCK_UCCSLOW2;
-	case 2: return QE_CR_SUBBLOCK_UCCSLOW3;
-	case 3: return QE_CR_SUBBLOCK_UCCSLOW4;
-	case 4: return QE_CR_SUBBLOCK_UCCSLOW5;
-	case 5: return QE_CR_SUBBLOCK_UCCSLOW6;
-	case 6: return QE_CR_SUBBLOCK_UCCSLOW7;
-	case 7: return QE_CR_SUBBLOCK_UCCSLOW8;
-	default: return QE_CR_SUBBLOCK_INVALID;
-	}
-}
-EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock);
-
-void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs)
-{
-	struct ucc_slow_info *us_info = uccs->us_info;
-	u32 id;
-
-	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
-	qe_issue_cmd(QE_GRACEFUL_STOP_TX, id,
-			 QE_CR_PROTOCOL_UNSPECIFIED, 0);
-}
-EXPORT_SYMBOL(ucc_slow_graceful_stop_tx);
-
-void ucc_slow_stop_tx(struct ucc_slow_private * uccs)
-{
-	struct ucc_slow_info *us_info = uccs->us_info;
-	u32 id;
-
-	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
-	qe_issue_cmd(QE_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
-}
-EXPORT_SYMBOL(ucc_slow_stop_tx);
-
-void ucc_slow_restart_tx(struct ucc_slow_private * uccs)
-{
-	struct ucc_slow_info *us_info = uccs->us_info;
-	u32 id;
-
-	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
-	qe_issue_cmd(QE_RESTART_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
-}
-EXPORT_SYMBOL(ucc_slow_restart_tx);
-
-void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode)
-{
-	struct ucc_slow *us_regs;
-	u32 gumr_l;
-
-	us_regs = uccs->us_regs;
-
-	/* Enable reception and/or transmission on this UCC. */
-	gumr_l = in_be32(&us_regs->gumr_l);
-	if (mode & COMM_DIR_TX) {
-		gumr_l |= UCC_SLOW_GUMR_L_ENT;
-		uccs->enabled_tx = 1;
-	}
-	if (mode & COMM_DIR_RX) {
-		gumr_l |= UCC_SLOW_GUMR_L_ENR;
-		uccs->enabled_rx = 1;
-	}
-	out_be32(&us_regs->gumr_l, gumr_l);
-}
-EXPORT_SYMBOL(ucc_slow_enable);
-
-void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
-{
-	struct ucc_slow *us_regs;
-	u32 gumr_l;
-
-	us_regs = uccs->us_regs;
-
-	/* Disable reception and/or transmission on this UCC. */
-	gumr_l = in_be32(&us_regs->gumr_l);
-	if (mode & COMM_DIR_TX) {
-		gumr_l &= ~UCC_SLOW_GUMR_L_ENT;
-		uccs->enabled_tx = 0;
-	}
-	if (mode & COMM_DIR_RX) {
-		gumr_l &= ~UCC_SLOW_GUMR_L_ENR;
-		uccs->enabled_rx = 0;
-	}
-	out_be32(&us_regs->gumr_l, gumr_l);
-}
-EXPORT_SYMBOL(ucc_slow_disable);
-
-/* Initialize the UCC for Slow operations
- *
- * The caller should initialize the following us_info
- */
-int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** uccs_ret)
-{
-	struct ucc_slow_private *uccs;
-	u32 i;
-	struct ucc_slow __iomem *us_regs;
-	u32 gumr;
-	struct qe_bd *bd;
-	u32 id;
-	u32 command;
-	int ret = 0;
-
-	if (!us_info)
-		return -EINVAL;
-
-	/* check if the UCC port number is in range. */
-	if ((us_info->ucc_num < 0) || (us_info->ucc_num > UCC_MAX_NUM - 1)) {
-		printk(KERN_ERR "%s: illegal UCC number\n", __func__);
-		return -EINVAL;
-	}
-
-	/*
-	 * Set mrblr
-	 * Check that 'max_rx_buf_length' is properly aligned (4), unless
-	 * rfw is 1, meaning that QE accepts one byte at a time, unlike normal
-	 * case when QE accepts 32 bits at a time.
-	 */
-	if ((!us_info->rfw) &&
-		(us_info->max_rx_buf_length & (UCC_SLOW_MRBLR_ALIGNMENT - 1))) {
-		printk(KERN_ERR "max_rx_buf_length not aligned.\n");
-		return -EINVAL;
-	}
-
-	uccs = kzalloc(sizeof(struct ucc_slow_private), GFP_KERNEL);
-	if (!uccs) {
-		printk(KERN_ERR "%s: Cannot allocate private data\n",
-			__func__);
-		return -ENOMEM;
-	}
-
-	/* Fill slow UCC structure */
-	uccs->us_info = us_info;
-	/* Set the PHY base address */
-	uccs->us_regs = ioremap(us_info->regs, sizeof(struct ucc_slow));
-	if (uccs->us_regs == NULL) {
-		printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__);
-		kfree(uccs);
-		return -ENOMEM;
-	}
-
-	uccs->saved_uccm = 0;
-	uccs->p_rx_frame = 0;
-	us_regs = uccs->us_regs;
-	uccs->p_ucce = (u16 *) & (us_regs->ucce);
-	uccs->p_uccm = (u16 *) & (us_regs->uccm);
-#ifdef STATISTICS
-	uccs->rx_frames = 0;
-	uccs->tx_frames = 0;
-	uccs->rx_discarded = 0;
-#endif				/* STATISTICS */
-
-	/* Get PRAM base */
-	uccs->us_pram_offset =
-		qe_muram_alloc(UCC_SLOW_PRAM_SIZE, ALIGNMENT_OF_UCC_SLOW_PRAM);
-	if (IS_ERR_VALUE(uccs->us_pram_offset)) {
-		printk(KERN_ERR "%s: cannot allocate MURAM for PRAM", __func__);
-		ucc_slow_free(uccs);
-		return -ENOMEM;
-	}
-	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
-	qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, us_info->protocol,
-		     uccs->us_pram_offset);
-
-	uccs->us_pram = qe_muram_addr(uccs->us_pram_offset);
-
-	/* Set UCC to slow type */
-	ret = ucc_set_type(us_info->ucc_num, UCC_SPEED_TYPE_SLOW);
-	if (ret) {
-		printk(KERN_ERR "%s: cannot set UCC type", __func__);
-		ucc_slow_free(uccs);
-		return ret;
-	}
-
-	out_be16(&uccs->us_pram->mrblr, us_info->max_rx_buf_length);
-
-	INIT_LIST_HEAD(&uccs->confQ);
-
-	/* Allocate BDs. */
-	uccs->rx_base_offset =
-		qe_muram_alloc(us_info->rx_bd_ring_len * sizeof(struct qe_bd),
-				QE_ALIGNMENT_OF_BD);
-	if (IS_ERR_VALUE(uccs->rx_base_offset)) {
-		printk(KERN_ERR "%s: cannot allocate %u RX BDs\n", __func__,
-			us_info->rx_bd_ring_len);
-		uccs->rx_base_offset = 0;
-		ucc_slow_free(uccs);
-		return -ENOMEM;
-	}
-
-	uccs->tx_base_offset =
-		qe_muram_alloc(us_info->tx_bd_ring_len * sizeof(struct qe_bd),
-			QE_ALIGNMENT_OF_BD);
-	if (IS_ERR_VALUE(uccs->tx_base_offset)) {
-		printk(KERN_ERR "%s: cannot allocate TX BDs", __func__);
-		uccs->tx_base_offset = 0;
-		ucc_slow_free(uccs);
-		return -ENOMEM;
-	}
-
-	/* Init Tx bds */
-	bd = uccs->confBd = uccs->tx_bd = qe_muram_addr(uccs->tx_base_offset);
-	for (i = 0; i < us_info->tx_bd_ring_len - 1; i++) {
-		/* clear bd buffer */
-		out_be32(&bd->buf, 0);
-		/* set bd status and length */
-		out_be32((u32 *) bd, 0);
-		bd++;
-	}
-	/* for last BD set Wrap bit */
-	out_be32(&bd->buf, 0);
-	out_be32((u32 *) bd, cpu_to_be32(T_W));
-
-	/* Init Rx bds */
-	bd = uccs->rx_bd = qe_muram_addr(uccs->rx_base_offset);
-	for (i = 0; i < us_info->rx_bd_ring_len - 1; i++) {
-		/* set bd status and length */
-		out_be32((u32*)bd, 0);
-		/* clear bd buffer */
-		out_be32(&bd->buf, 0);
-		bd++;
-	}
-	/* for last BD set Wrap bit */
-	out_be32((u32*)bd, cpu_to_be32(R_W));
-	out_be32(&bd->buf, 0);
-
-	/* Set GUMR (For more details see the hardware spec.). */
-	/* gumr_h */
-	gumr = us_info->tcrc;
-	if (us_info->cdp)
-		gumr |= UCC_SLOW_GUMR_H_CDP;
-	if (us_info->ctsp)
-		gumr |= UCC_SLOW_GUMR_H_CTSP;
-	if (us_info->cds)
-		gumr |= UCC_SLOW_GUMR_H_CDS;
-	if (us_info->ctss)
-		gumr |= UCC_SLOW_GUMR_H_CTSS;
-	if (us_info->tfl)
-		gumr |= UCC_SLOW_GUMR_H_TFL;
-	if (us_info->rfw)
-		gumr |= UCC_SLOW_GUMR_H_RFW;
-	if (us_info->txsy)
-		gumr |= UCC_SLOW_GUMR_H_TXSY;
-	if (us_info->rtsm)
-		gumr |= UCC_SLOW_GUMR_H_RTSM;
-	out_be32(&us_regs->gumr_h, gumr);
-
-	/* gumr_l */
-	gumr = us_info->tdcr | us_info->rdcr | us_info->tenc | us_info->renc |
-		us_info->diag | us_info->mode;
-	if (us_info->tci)
-		gumr |= UCC_SLOW_GUMR_L_TCI;
-	if (us_info->rinv)
-		gumr |= UCC_SLOW_GUMR_L_RINV;
-	if (us_info->tinv)
-		gumr |= UCC_SLOW_GUMR_L_TINV;
-	if (us_info->tend)
-		gumr |= UCC_SLOW_GUMR_L_TEND;
-	out_be32(&us_regs->gumr_l, gumr);
-
-	/* Function code registers */
-
-	/* if the data is in cachable memory, the 'global' */
-	/* in the function code should be set. */
-	uccs->us_pram->tbmr = UCC_BMR_BO_BE;
-	uccs->us_pram->rbmr = UCC_BMR_BO_BE;
-
-	/* rbase, tbase are offsets from MURAM base */
-	out_be16(&uccs->us_pram->rbase, uccs->rx_base_offset);
-	out_be16(&uccs->us_pram->tbase, uccs->tx_base_offset);
-
-	/* Mux clocking */
-	/* Grant Support */
-	ucc_set_qe_mux_grant(us_info->ucc_num, us_info->grant_support);
-	/* Breakpoint Support */
-	ucc_set_qe_mux_bkpt(us_info->ucc_num, us_info->brkpt_support);
-	/* Set Tsa or NMSI mode. */
-	ucc_set_qe_mux_tsa(us_info->ucc_num, us_info->tsa);
-	/* If NMSI (not Tsa), set Tx and Rx clock. */
-	if (!us_info->tsa) {
-		/* Rx clock routing */
-		if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->rx_clock,
-					COMM_DIR_RX)) {
-			printk(KERN_ERR "%s: illegal value for RX clock\n",
-			       __func__);
-			ucc_slow_free(uccs);
-			return -EINVAL;
-		}
-		/* Tx clock routing */
-		if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->tx_clock,
-					COMM_DIR_TX)) {
-			printk(KERN_ERR "%s: illegal value for TX clock\n",
-			       __func__);
-			ucc_slow_free(uccs);
-			return -EINVAL;
-		}
-	}
-
-	/* Set interrupt mask register at UCC level. */
-	out_be16(&us_regs->uccm, us_info->uccm_mask);
-
-	/* First, clear anything pending at UCC level,
-	 * otherwise, old garbage may come through
-	 * as soon as the dam is opened. */
-
-	/* Writing '1' clears */
-	out_be16(&us_regs->ucce, 0xffff);
-
-	/* Issue QE Init command */
-	if (us_info->init_tx && us_info->init_rx)
-		command = QE_INIT_TX_RX;
-	else if (us_info->init_tx)
-		command = QE_INIT_TX;
-	else
-		command = QE_INIT_RX;	/* We know at least one is TRUE */
-
-	qe_issue_cmd(command, id, us_info->protocol, 0);
-
-	*uccs_ret = uccs;
-	return 0;
-}
-EXPORT_SYMBOL(ucc_slow_init);
-
-void ucc_slow_free(struct ucc_slow_private * uccs)
-{
-	if (!uccs)
-		return;
-
-	if (uccs->rx_base_offset)
-		qe_muram_free(uccs->rx_base_offset);
-
-	if (uccs->tx_base_offset)
-		qe_muram_free(uccs->tx_base_offset);
-
-	if (uccs->us_pram)
-		qe_muram_free(uccs->us_pram_offset);
-
-	if (uccs->us_regs)
-		iounmap(uccs->us_regs);
-
-	kfree(uccs);
-}
-EXPORT_SYMBOL(ucc_slow_free);
-