redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

DMAENGINE: Set burst size for phy and log chans in ste_dma40 dev_control 

Set burst for physical or logical channels respectively.
Convert the values in dma_cfg to dma reg bits
for physical or logical channels.

Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
hifive-unleashed-5.1
Per Forlin 2010-10-06 09:05:27 +00:00 committed by Dan Williams
parent 819504f486
commit a59670a40b
1 changed files with 26 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/dma/ste_dma40.c
View File

@ -2246,14 +2246,25 @@ static void d40_set_runtime_config(struct dma_chan *chan,
return;
}
if (config_maxburst >= 16)
psize = STEDMA40_PSIZE_LOG_16;
else if (config_maxburst >= 8)
psize = STEDMA40_PSIZE_LOG_8;
else if (config_maxburst >= 4)
psize = STEDMA40_PSIZE_LOG_4;
else
psize = STEDMA40_PSIZE_LOG_1;
if (d40c->log_num != D40_PHY_CHAN) {
if (config_maxburst >= 16)
psize = STEDMA40_PSIZE_LOG_16;
else if (config_maxburst >= 8)
psize = STEDMA40_PSIZE_LOG_8;
else if (config_maxburst >= 4)
psize = STEDMA40_PSIZE_LOG_4;
else
psize = STEDMA40_PSIZE_LOG_1;
} else {
if (config_maxburst >= 16)
psize = STEDMA40_PSIZE_PHY_16;
else if (config_maxburst >= 8)
psize = STEDMA40_PSIZE_PHY_8;
else if (config_maxburst >= 4)
psize = STEDMA40_PSIZE_PHY_4;
else
psize = STEDMA40_PSIZE_PHY_1;
}
/* Set up all the endpoint configs */
cfg->src_info.data_width = addr_width;
@ -2265,6 +2276,13 @@ static void d40_set_runtime_config(struct dma_chan *chan,
cfg->dst_info.endianess = STEDMA40_LITTLE_ENDIAN;
cfg->dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL;
/* Fill in register values */
if (d40c->log_num != D40_PHY_CHAN)
d40_log_cfg(cfg, &d40c->log_def.lcsp1, &d40c->log_def.lcsp3);
else
d40_phy_cfg(cfg, &d40c->src_def_cfg,
&d40c->dst_def_cfg, false);
/* These settings will take precedence later */
d40c->runtime_addr = config_addr;
d40c->runtime_direction = config->direction;