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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2014-05-16 15:17:10 +0300
committerSekhar Nori <nsekhar@ti.com>2014-05-22 10:47:46 +0530
commitc3dd3389dbed93d5675205cc25ff7be67a738573 (patch)
tree06a69e9b16cfd505b5c68256cf052fbef6d4dafe /arch/arm/common
parentcf4afc3d2b6e11e507692c422eaf2b2e691e00d7 (diff)
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>
Diffstat (limited to 'arch/arm/common')
-rw-r--r--arch/arm/common/edma.c28
1 files changed, 1 insertions, 27 deletions
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index fde56e2ba203..4df5d443b0b3 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
@@ -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,