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ARM: edma: Do not change TC -> Queue mapping, leave it to default. 

There is no need to change the default TC -> Queue mapping. By default the
mapping is: TC0 -> Q0, TC1 -> Q1, etc.
Changing this has no benefits at all and all the board files are just setting
the same mapping back to the HW.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
hifive-unleashed-5.1
Peter Ujfalusi 2014-05-16 15:17:10 +03:00 committed by Sekhar Nori
parent cf4afc3d2b
commit c3dd3389db
1 changed files with 1 additions and 27 deletions
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28
arch/arm/common/edma.c
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@ -290,12 +290,6 @@ static void map_dmach_queue(unsigned ctlr, unsigned ch_no,
~(0x7 << bit), queue_no << bit);
}
static void __init map_queue_tc(unsigned ctlr, int queue_no, int tc_no)
{
int bit = queue_no * 4;
edma_modify(ctlr, EDMA_QUETCMAP, ~(0x7 << bit), ((tc_no & 0x7) << bit));
}
static void __init assign_priority_to_queue(unsigned ctlr, int queue_no,
int priority)
{
@ -1488,7 +1482,7 @@ static int edma_of_parse_dt(struct device *dev,
struct property *prop;
size_t sz;
struct edma_rsv_info *rsv_info;
s8 (*queue_tc_map)[2], (*queue_priority_map)[2];
s8 (*queue_priority_map)[2];
ret = of_property_read_u32(node, "dma-channels", &value);
if (ret < 0)
@ -1513,19 +1507,6 @@ static int edma_of_parse_dt(struct device *dev,
return -ENOMEM;
pdata->rsv = rsv_info;
queue_tc_map = devm_kzalloc(dev, 8*sizeof(s8), GFP_KERNEL);
if (!queue_tc_map)
return -ENOMEM;
for (i = 0; i < 3; i++) {
queue_tc_map[i][0] = i;
queue_tc_map[i][1] = i;
}
queue_tc_map[i][0] = -1;
queue_tc_map[i][1] = -1;
pdata->queue_tc_mapping = queue_tc_map;
queue_priority_map = devm_kzalloc(dev, 8*sizeof(s8), GFP_KERNEL);
if (!queue_priority_map)
return -ENOMEM;
@ -1586,7 +1567,6 @@ static int edma_probe(struct platform_device *pdev)
struct edma_soc_info **info = pdev->dev.platform_data;
struct edma_soc_info *ninfo[EDMA_MAX_CC] = {NULL};
s8 (*queue_priority_mapping)[2];
s8 (*queue_tc_mapping)[2];
int i, j, off, ln, found = 0;
int status = -1;
const s16 (*rsv_chans)[2];
@ -1753,14 +1733,8 @@ static int edma_probe(struct platform_device *pdev)
for (i = 0; i < edma_cc[j]->num_channels; i++)
map_dmach_queue(j, i, info[j]->default_queue);
queue_tc_mapping = info[j]->queue_tc_mapping;
queue_priority_mapping = info[j]->queue_priority_mapping;
/* Event queue to TC mapping */
for (i = 0; queue_tc_mapping[i][0] != -1; i++)
map_queue_tc(j, queue_tc_mapping[i][0],
queue_tc_mapping[i][1]);
/* Event queue priority mapping */
for (i = 0; queue_priority_mapping[i][0] != -1; i++)
assign_priority_to_queue(j,