sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

net: fec: convert to streaming DMA ops 

Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Lucas Stach 2015-03-05 22:50:12 +01:00 committed by Sascha Hauer
parent 5213d76f47
commit aaca81b9f5
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/fec_imx.c
View File

@ -31,8 +31,6 @@
#include <of_gpio.h>
#include <gpio.h>
#include <asm/mmu.h>
#include "fec_imx.h"
struct fec_frame {
@ -479,8 +477,9 @@ static int fec_send(struct eth_device *dev, void *eth_data, int data_length)
writew(data_length, &fec->tbd_base[fec->tbd_index].data_length);
writel((uint32_t)(eth_data), &fec->tbd_base[fec->tbd_index].data_pointer);
dma_flush_range((unsigned long)eth_data,
(unsigned long)(eth_data + data_length));
dma_sync_single_for_device((unsigned long)eth_data, data_length,
DMA_TO_DEVICE);
/*
* update BD's status now
* This block:
@ -503,6 +502,8 @@ static int fec_send(struct eth_device *dev, void *eth_data, int data_length)
break;
}
}
dma_sync_single_for_cpu((unsigned long)eth_data, data_length,
DMA_TO_DEVICE);
/* for next transmission use the other buffer */
if (fec->tbd_index)
@ -576,7 +577,11 @@ static int fec_recv(struct eth_device *dev)
*/
frame = phys_to_virt(readl(&rbd->data_pointer));
frame_length = readw(&rbd->data_length) - 4;
dma_sync_single_for_cpu((unsigned long)frame->data,
frame_length, DMA_FROM_DEVICE);
net_receive(dev, frame->data, frame_length);
dma_sync_single_for_device((unsigned long)frame->data,
frame_length, DMA_FROM_DEVICE);
len = frame_length;
} else {
if (bd_status & FEC_RBD_ERR) {