From: Sudhakar Rajashekhara <sudhakar....@ti.com>
Pass reserved EDMA channel/slots as platform data for dm646x.
Signed-off-by: Sudhakar Rajashekhara <sudhakar....@ti.com>
Signed-off-by: Kevin Hilman <khil...@deeprootsystems.com>
---
arch/arm/mach-davinci/dm646x.c | 28 ++++++++++++++++++++++++++++
1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index de306ca..99224ec 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -511,6 +511,32 @@ static u8 dm646x_default_priorities[DAVINCI_N_AINTC_IRQ] =
{
/*----------------------------------------------------------------------*/
+/*
+ * The following EDMA channels/slots are not being used by drivers (for
+ * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
+ * reserved for codecs on the DSP side.
+ */
+static const s16 dm646x_dma_rsv_chans[][2] = {
+ /* (offset, number) */
+ { 0, 4},
+ {13, 3},
+ {24, 4},
+ {30, 2},
+ {54, 3},
+ {-1, -1}
+};
+
+static const s16 dm646x_dma_rsv_slots[][2] = {
+ /* (offset, number) */
+ { 0, 4},
+ {13, 3},
+ {24, 4},
+ {30, 2},
+ {54, 3},
+ {128, 384},
+ {-1, -1}
+};
+
/* Four Transfer Controllers on DM646x */
static const s8
dm646x_queue_tc_mapping[][2] = {
@@ -539,6 +565,8 @@ static struct edma_soc_info dm646x_edma_info[] = {
.n_slot = 512,
.n_tc = 4,
.n_cc = 1,
+ .rsv_chans = dm646x_dma_rsv_chans,
+ .rsv_slots = dm646x_dma_rsv_slots,
.queue_tc_mapping = dm646x_queue_tc_mapping,
.queue_priority_mapping = dm646x_queue_priority_mapping,
},
--
1.6.6.rc2.1.g42108
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