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Diffstat (limited to 'arch/powerpc/sysdev/bestcomm/fec.c')
-rw-r--r--arch/powerpc/sysdev/bestcomm/fec.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/arch/powerpc/sysdev/bestcomm/fec.c b/arch/powerpc/sysdev/bestcomm/fec.c
deleted file mode 100644
index 957a988d23e..00000000000
--- a/arch/powerpc/sysdev/bestcomm/fec.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * Bestcomm FEC tasks driver
- *
- *
- * Copyright (C) 2006-2007 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003-2004 MontaVista, Software, Inc.
- * ( by Dale Farnsworth <dfarnsworth@mvista.com> )
- *
- * 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 "fec.h"
-
-
-/* ======================================================================== */
-/* Task image/var/inc */
-/* ======================================================================== */
-
-/* fec tasks images */
-extern u32 bcom_fec_rx_task[];
-extern u32 bcom_fec_tx_task[];
-
-/* rx task vars that need to be set before enabling the task */
-struct bcom_fec_rx_var {
- u32 enable; /* (u16*) address of task's control register */
- u32 fifo; /* (u32*) address of fec's fifo */
- 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 */
-};
-
-/* rx task incs that need to be set before enabling the task */
-struct bcom_fec_rx_inc {
- u16 pad0;
- s16 incr_bytes;
- u16 pad1;
- s16 incr_dst;
- u16 pad2;
- s16 incr_dst_ma;
-};
-
-/* tx task vars that need to be set before enabling the task */
-struct bcom_fec_tx_var {
- u32 DRD; /* (u32*) address of self-modified DRD */
- u32 fifo; /* (u32*) address of fec's fifo */
- 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; /* set by uCode for each packet */
-};
-
-/* tx task incs that need to be set before enabling the task */
-struct bcom_fec_tx_inc {
- u16 pad0;
- s16 incr_bytes;
- u16 pad1;
- s16 incr_src;
- u16 pad2;
- s16 incr_src_ma;
-};
-
-/* private structure in the task */
-struct bcom_fec_priv {
- phys_addr_t fifo;
- int maxbufsize;
-};
-
-
-/* ======================================================================== */
-/* Task support code */
-/* ======================================================================== */
-
-struct bcom_task *
-bcom_fec_rx_init(int queue_len, phys_addr_t fifo, int maxbufsize)
-{
- struct bcom_task *tsk;
- struct bcom_fec_priv *priv;
-
- tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd),
- sizeof(struct bcom_fec_priv));
- if (!tsk)
- return NULL;
-
- tsk->flags = BCOM_FLAGS_NONE;
-
- priv = tsk->priv;
- priv->fifo = fifo;
- priv->maxbufsize = maxbufsize;
-
- if (bcom_fec_rx_reset(tsk)) {
- bcom_task_free(tsk);
- return NULL;
- }
-
- return tsk;
-}
-EXPORT_SYMBOL_GPL(bcom_fec_rx_init);
-
-int
-bcom_fec_rx_reset(struct bcom_task *tsk)
-{
- struct bcom_fec_priv *priv = tsk->priv;
- struct bcom_fec_rx_var *var;
- struct bcom_fec_rx_inc *inc;
-
- /* Shutdown the task */
- bcom_disable_task(tsk->tasknum);
-
- /* Reset the microcode */
- var = (struct bcom_fec_rx_var *) bcom_task_var(tsk->tasknum);
- inc = (struct bcom_fec_rx_inc *) bcom_task_inc(tsk->tasknum);
-
- if (bcom_load_image(tsk->tasknum, bcom_fec_rx_task))
- return -1;
-
- var->enable = bcom_eng->regs_base +
- offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
- var->fifo = (u32) priv->fifo;
- 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 = priv->maxbufsize;
-
- inc->incr_bytes = -(s16)sizeof(u32); /* These should be in the */
- inc->incr_dst = sizeof(u32); /* task image, but we stick */
- inc->incr_dst_ma= sizeof(u8); /* to the official ones */
-
- /* Reset the BDs */
- tsk->index = 0;
- tsk->outdex = 0;
-
- memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
-
- /* Configure some stuff */
- bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_RX_BD_PRAGMA);
- bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
-
- out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_FEC_RX], BCOM_IPR_FEC_RX);
-
- out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(bcom_fec_rx_reset);
-
-void
-bcom_fec_rx_release(struct bcom_task *tsk)
-{
- /* Nothing special for the FEC tasks */
- bcom_task_free(tsk);
-}
-EXPORT_SYMBOL_GPL(bcom_fec_rx_release);
-
-
-
- /* Return 2nd to last DRD */
- /* This is an ugly hack, but at least it's only done
- once at initialization */
-static u32 *self_modified_drd(int tasknum)
-{
- u32 *desc;
- int num_descs;
- int drd_count;
- int i;
-
- num_descs = bcom_task_num_descs(tasknum);
- desc = bcom_task_desc(tasknum) + num_descs - 1;
- drd_count = 0;
- for (i=0; i<num_descs; i++, desc--)
- if (bcom_desc_is_drd(*desc) && ++drd_count == 3)
- break;
- return desc;
-}
-
-struct bcom_task *
-bcom_fec_tx_init(int queue_len, phys_addr_t fifo)
-{
- struct bcom_task *tsk;
- struct bcom_fec_priv *priv;
-
- tsk = bcom_task_alloc(queue_len, sizeof(struct bcom_fec_bd),
- sizeof(struct bcom_fec_priv));
- if (!tsk)
- return NULL;
-
- tsk->flags = BCOM_FLAGS_ENABLE_TASK;
-
- priv = tsk->priv;
- priv->fifo = fifo;
-
- if (bcom_fec_tx_reset(tsk)) {
- bcom_task_free(tsk);
- return NULL;
- }
-
- return tsk;
-}
-EXPORT_SYMBOL_GPL(bcom_fec_tx_init);
-
-int
-bcom_fec_tx_reset(struct bcom_task *tsk)
-{
- struct bcom_fec_priv *priv = tsk->priv;
- struct bcom_fec_tx_var *var;
- struct bcom_fec_tx_inc *inc;
-
- /* Shutdown the task */
- bcom_disable_task(tsk->tasknum);
-
- /* Reset the microcode */
- var = (struct bcom_fec_tx_var *) bcom_task_var(tsk->tasknum);
- inc = (struct bcom_fec_tx_inc *) bcom_task_inc(tsk->tasknum);
-
- if (bcom_load_image(tsk->tasknum, bcom_fec_tx_task))
- return -1;
-
- var->enable = bcom_eng->regs_base +
- offsetof(struct mpc52xx_sdma, tcr[tsk->tasknum]);
- var->fifo = (u32) priv->fifo;
- var->DRD = bcom_sram_va2pa(self_modified_drd(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;
-
- inc->incr_bytes = -(s16)sizeof(u32); /* These should be in the */
- inc->incr_src = sizeof(u32); /* task image, but we stick */
- inc->incr_src_ma= sizeof(u8); /* to the official ones */
-
- /* Reset the BDs */
- tsk->index = 0;
- tsk->outdex = 0;
-
- memset(tsk->bd, 0x00, tsk->num_bd * tsk->bd_size);
-
- /* Configure some stuff */
- bcom_set_task_pragma(tsk->tasknum, BCOM_FEC_TX_BD_PRAGMA);
- bcom_set_task_auto_start(tsk->tasknum, tsk->tasknum);
-
- out_8(&bcom_eng->regs->ipr[BCOM_INITIATOR_FEC_TX], BCOM_IPR_FEC_TX);
-
- out_be32(&bcom_eng->regs->IntPend, 1<<tsk->tasknum); /* Clear ints */
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(bcom_fec_tx_reset);
-
-void
-bcom_fec_tx_release(struct bcom_task *tsk)
-{
- /* Nothing special for the FEC tasks */
- bcom_task_free(tsk);
-}
-EXPORT_SYMBOL_GPL(bcom_fec_tx_release);
-
-
-MODULE_DESCRIPTION("BestComm FEC tasks driver");
-MODULE_AUTHOR("Dale Farnsworth <dfarnsworth@mvista.com>");
-MODULE_LICENSE("GPL v2");
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 15:21:36 +0000