aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/dma
diff options
context:
space:
mode:
authorRabin Vincent <rabin.vincent@stericsson.com>2010-10-12 13:00:52 +0000
committerDan Williams <dan.j.williams@intel.com>2010-10-19 15:17:07 -0700
commit20a5b6d043a9a12d01cec76993ba3658a6d36ba7 (patch)
tree6a2d943828027a758f6c26c97dc10a6975084b02 /drivers/dma
parent38bdbf020ad7ae1bca564a7db238cdf8b2f462a8 (diff)
downloadmrst-s0i3-test-20a5b6d043a9a12d01cec76993ba3658a6d36ba7.tar.gz
mrst-s0i3-test-20a5b6d043a9a12d01cec76993ba3658a6d36ba7.tar.xz
mrst-s0i3-test-20a5b6d043a9a12d01cec76993ba3658a6d36ba7.zip
ste_dma40: move mode_opt to separate config
Defaults are "basic mode" for physical channels, and "logical source logical destination" for logical channels. Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ste_dma40.c28
-rw-r--r--drivers/dma/ste_dma40_ll.h7
2 files changed, 33 insertions, 2 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index ddaeb51797b..31f7e97c29b 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -693,6 +693,31 @@ static u32 d40_chan_has_events(struct d40_chan *d40c)
return val;
}
+static u32 d40_get_prmo(struct d40_chan *d40c)
+{
+ static const unsigned int phy_map[] = {
+ [STEDMA40_PCHAN_BASIC_MODE]
+ = D40_DREG_PRMO_PCHAN_BASIC,
+ [STEDMA40_PCHAN_MODULO_MODE]
+ = D40_DREG_PRMO_PCHAN_MODULO,
+ [STEDMA40_PCHAN_DOUBLE_DST_MODE]
+ = D40_DREG_PRMO_PCHAN_DOUBLE_DST,
+ };
+ static const unsigned int log_map[] = {
+ [STEDMA40_LCHAN_SRC_PHY_DST_LOG]
+ = D40_DREG_PRMO_LCHAN_SRC_PHY_DST_LOG,
+ [STEDMA40_LCHAN_SRC_LOG_DST_PHY]
+ = D40_DREG_PRMO_LCHAN_SRC_LOG_DST_PHY,
+ [STEDMA40_LCHAN_SRC_LOG_DST_LOG]
+ = D40_DREG_PRMO_LCHAN_SRC_LOG_DST_LOG,
+ };
+
+ if (d40c->log_num == D40_PHY_CHAN)
+ return phy_map[d40c->dma_cfg.mode_opt];
+ else
+ return log_map[d40c->dma_cfg.mode_opt];
+}
+
static void d40_config_write(struct d40_chan *d40c)
{
u32 addr_base;
@@ -706,8 +731,7 @@ static void d40_config_write(struct d40_chan *d40c)
writel(var, d40c->base->virtbase + D40_DREG_PRMSE + addr_base);
/* Setup operational mode option register */
- var = ((d40c->dma_cfg.channel_type >> STEDMA40_INFO_CH_MODE_OPT_POS) &
- 0x3) << D40_CHAN_POS(d40c->phy_chan->num);
+ var = d40_get_prmo(d40c) << D40_CHAN_POS(d40c->phy_chan->num);
writel(var, d40c->base->virtbase + D40_DREG_PRMOE + addr_base);
diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h
index 37f81e84cd1..9e419b90754 100644
--- a/drivers/dma/ste_dma40_ll.h
+++ b/drivers/dma/ste_dma40_ll.h
@@ -130,6 +130,13 @@
#define D40_DREG_PRMSO 0x014
#define D40_DREG_PRMOE 0x018
#define D40_DREG_PRMOO 0x01C
+#define D40_DREG_PRMO_PCHAN_BASIC 0x1
+#define D40_DREG_PRMO_PCHAN_MODULO 0x2
+#define D40_DREG_PRMO_PCHAN_DOUBLE_DST 0x3
+#define D40_DREG_PRMO_LCHAN_SRC_PHY_DST_LOG 0x1
+#define D40_DREG_PRMO_LCHAN_SRC_LOG_DST_PHY 0x2
+#define D40_DREG_PRMO_LCHAN_SRC_LOG_DST_LOG 0x3
+
#define D40_DREG_LCPA 0x020
#define D40_DREG_LCLA 0x024
#define D40_DREG_ACTIVE 0x050