powerpc, dma: move bestcomm driver from arch/powerpc/sysdev to drivers/dma

The bestcomm dma hardware, and some of its users like the FEC ethernet
component, is used in different FreeScale parts, including non-powerpc
parts like the ColdFire MCF547x & MCF548x families.  Don't keep the
driver hidden in arch/powerpc where it is inaccessible for other arches.
.c files are moved to drivers/dma/bestcomm, while .h files are moved to
include/linux/fsl/bestcomm.  Makefiles, Kconfigs and #include directives
are updated for the new file locations.

Tested by recompiling for MPC5200 with all bestcomm users enabled.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Anatolij Gustschin <agust@denx.de>

1 files changed, 0 insertions, 157 deletions

diff --git a/arch/powerpc/sysdev/bestcomm/ata.c b/arch/powerpc/sysdev/bestcomm/ata.c
deleted file mode 100644
index 901c9f91e5dd..000000000000
--- a/arch/powerpc/sysdev/bestcomm/ata.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Bestcomm ATA task driver
- *
- *
- * Patterned after bestcomm/fec.c by Dale Farnsworth <dfarnsworth@mvista.com>
- *                                   2003-2004 (c) MontaVista, Software, Inc.
- *
- * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2006      Freescale - John Rigby
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <asm/io.h>
-
-#include "bestcomm.h"
-#include "bestcomm_priv.h"
-#include "ata.h"
-
-
-/* ======================================================================== */
-/* Task image/var/inc                                                       */
-/* ======================================================================== */
-
-/* ata task image */
-extern u32 bcom_ata_task[];
-
-/* ata task vars that need to be set before enabling the task */
-struct bcom_ata_var {
-	u32 enable;		/* (u16*) address of task's control register */
-	u32 bd_base;		/* (struct bcom_bd*) beginning of ring buffer */
-	u32 bd_last;		/* (struct bcom_bd*) end of ring buffer */
-	u32 bd_start;		/* (struct bcom_bd*) current bd */
-	u32 buffer_size;	/* size of receive buffer */
-};
-
-/* ata task incs that need to be set before enabling the task */
-struct bcom_ata_inc {
-	u16 pad0;
-	s16 incr_bytes;
-	u16 pad1;
-	s16 incr_dst;
-	u16 pad2;
-	s16 incr_src;
-};
-
-
-/* ======================================================================== */
-/* Task support code                                                        */
-/* ======================================================================== */
-
-struct bcom_task *
-bcom_ata_init(int queue_len, int maxbufsize)
-{
-	struct bcom_task *tsk;
-	struct bcom_ata_var *var;
-	struct bcom_ata_inc *inc;
-
-	/* Prefetch breaks ATA DMA.  Turn it off for ATA DMA */
-	bcom_disable_prefetch();
-
-	tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_ata_bd), 0);
-	if (!tsk)
-		return NULL;
-
-	tsk->flags = BCOM_FLAGS_NONE;
-
-	bcom_ata_reset_bd(tsk);
-
-	var = (struct bcom_ata_var *) bcom_task_var(tsk->tasknum);
-	inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum);
-
-	if (bcom_load_image(tsk->tasknum, bcom_ata_task)) {
-		bcom_task_free(tsk);
-		return NULL;
-	}
-
-	var->enable	= bcom_eng->regs_base +
-				offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
-	var->bd_base	= tsk->bd_pa;
-	var->bd_last	= tsk->bd_pa + ((tsk->num_bd-1) * tsk->bd_size);
-	var->bd_start	= tsk->bd_pa;
-	var->buffer_size = maxbufsize;
-
-	/* Configure some stuff */
-	bcom_set_task_pragma(tsk->tasknum, BCOM_ATA_PRAGMA);
-	bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
-
-	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ATA_RX], BCOM_IPR_ATA_RX);
-	out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_ATA_TX], BCOM_IPR_ATA_TX);
-
-	out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */
-
-	return tsk;
-}
-EXPORT_SYMBOL_GPL(bcom_ata_init);
-
-void bcom_ata_rx_prepare(struct bcom_task *tsk)
-{
-	struct bcom_ata_inc *inc;
-
-	inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum);
-
-	inc->incr_bytes	= -(s16)sizeof(u32);
-	inc->incr_src	= 0;
-	inc->incr_dst	= sizeof(u32);
-
-	bcom_set_initiator(tsk->tasknum, BCOM_INITIATOR_ATA_RX);
-}
-EXPORT_SYMBOL_GPL(bcom_ata_rx_prepare);
-
-void bcom_ata_tx_prepare(struct bcom_task *tsk)
-{
-	struct bcom_ata_inc *inc;
-
-	inc = (struct bcom_ata_inc *) bcom_task_inc(tsk->tasknum);
-
-	inc->incr_bytes	= -(s16)sizeof(u32);
-	inc->incr_src	= sizeof(u32);
-	inc->incr_dst	= 0;
-
-	bcom_set_initiator(tsk->tasknum, BCOM_INITIATOR_ATA_TX);
-}
-EXPORT_SYMBOL_GPL(bcom_ata_tx_prepare);
-
-void bcom_ata_reset_bd(struct bcom_task *tsk)
-{
-	struct bcom_ata_var *var;
-
-	/* Reset all BD */
-	memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
-
-	tsk->index = 0;
-	tsk->outdex = 0;
-
-	var = (struct bcom_ata_var *) bcom_task_var(tsk->tasknum);
-	var->bd_start = var->bd_base;
-}
-EXPORT_SYMBOL_GPL(bcom_ata_reset_bd);
-
-void bcom_ata_release(struct bcom_task *tsk)
-{
-	/* Nothing special for the ATA tasks */
-	bcom_task_free(tsk);
-}
-EXPORT_SYMBOL_GPL(bcom_ata_release);
-
-
-MODULE_DESCRIPTION("BestComm ATA task driver");
-MODULE_AUTHOR("John Rigby");
-MODULE_LICENSE("GPL v2");
-