diff mbox

[04/26] davinci: EDMA: Move queue related mappings to dm<soc>.c

Message ID 1246914900-9034-5-git-send-email-khilman@deeprootsystems.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Kevin Hilman July 6, 2009, 9:14 p.m. UTC 
From: Sudhakar Rajashekhara <sudhakar.raj@ti.com>

EDMA in DM355 and DM644x has two transfer controllers while DM646x has four
transfer controllers. Moving the queue to tc mapping and queue priority
mapping to dm<soc>.c will be helpful to probe these mappings from platform
device so that the machine_is_* testing will be avoided.

Signed-off-by: Naresh Medisetty <naresh@ti.com>
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
---
 arch/arm/mach-davinci/dm355.c             |   30 ++++++++++++++++++----
 arch/arm/mach-davinci/dm644x.c            |   30 ++++++++++++++++++----
 arch/arm/mach-davinci/dm646x.c            |   38 +++++++++++++++++++++++-----
 arch/arm/mach-davinci/dma.c               |   22 ++++-------------
 arch/arm/mach-davinci/include/mach/edma.h |    2 +
 5 files changed, 86 insertions(+), 36 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index beda643..9baeed3 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -558,13 +558,31 @@  static const s8 dma_chan_dm355_no_event[] = {
 	-1
 };
 
+static const s8
+queue_tc_mapping[][2] = {
+	/* {event queue no, TC no} */
+	{0, 0},
+	{1, 1},
+	{-1, -1},
+};
+
+static const s8
+queue_priority_mapping[][2] = {
+	/* {event queue no, Priority} */
+	{0, 3},
+	{1, 7},
+	{-1, -1},
+};
+
 static struct edma_soc_info dm355_edma_info = {
-	.n_channel	= 64,
-	.n_region	= 4,
-	.n_slot		= 128,
-	.n_tc		= 2,
-	.n_cc		= 1,
-	.noevent	= dma_chan_dm355_no_event,
+	.n_channel		= 64,
+	.n_region		= 4,
+	.n_slot			= 128,
+	.n_tc			= 2,
+	.n_cc			= 1,
+	.noevent		= dma_chan_dm355_no_event,
+	.queue_tc_mapping	= queue_tc_mapping,
+	.queue_priority_mapping	= queue_priority_mapping,
 };
 
 static struct resource edma_resources[] = {
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index ddc1d4f..a2f83af 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -484,13 +484,31 @@  static const s8 dma_chan_dm644x_no_event[] = {
 	-1
 };
 
+static const s8
+queue_tc_mapping[][2] = {
+	/* {event queue no, TC no} */
+	{0, 0},
+	{1, 1},
+	{-1, -1},
+};
+
+static const s8
+queue_priority_mapping[][2] = {
+	/* {event queue no, Priority} */
+	{0, 3},
+	{1, 7},
+	{-1, -1},
+};
+
 static struct edma_soc_info dm644x_edma_info = {
-	.n_channel	= 64,
-	.n_region	= 4,
-	.n_slot		= 128,
-	.n_tc		= 2,
-	.n_cc		= 1,
-	.noevent	= dma_chan_dm644x_no_event,
+	.n_channel		= 64,
+	.n_region		= 4,
+	.n_slot			= 128,
+	.n_tc			= 2,
+	.n_cc			= 1,
+	.noevent		= dma_chan_dm644x_no_event,
+	.queue_tc_mapping	= queue_tc_mapping,
+	.queue_priority_mapping	= queue_priority_mapping,
 };
 
 static struct resource edma_resources[] = {
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 334f071..d32d2b8 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -451,17 +451,41 @@  static const s8 dma_chan_dm646x_no_event[] = {
 	-1
 };
 
+/* Four Transfer Controllers on DM646x */
+static const s8
+dm646x_queue_tc_mapping[][2] = {
+	/* {event queue no, TC no} */
+	{0, 0},
+	{1, 1},
+	{2, 2},
+	{3, 3},
+	{-1, -1},
+};
+
+static const s8
+dm646x_queue_priority_mapping[][2] = {
+	/* {event queue no, Priority} */
+	{0, 4},
+	{1, 0},
+	{2, 5},
+	{3, 1},
+	{-1, -1},
+};
+
 static struct edma_soc_info dm646x_edma_info = {
-	.n_channel	= 64,
-	.n_region	= 6,	/* 0-1, 4-7 */
-	.n_slot		= 512,
-	.n_tc		= 4,
-	.noevent	= dma_chan_dm646x_no_event,
+	.n_channel		= 64,
+	.n_region		= 6,	/* 0-1, 4-7 */
+	.n_slot			= 512,
+	.n_tc			= 4,
+	.n_cc			= 1,
+	.noevent		= dma_chan_dm646x_no_event,
+	.queue_tc_mapping	= dm646x_queue_tc_mapping,
+	.queue_priority_mapping	= dm646x_queue_priority_mapping,
 };
 
 static struct resource edma_resources[] = {
 	{
-		.name	= "edma_cc",
+		.name	= "edma_cc0",
 		.start	= 0x01c00000,
 		.end	= 0x01c00000 + SZ_64K - 1,
 		.flags	= IORESOURCE_MEM,
@@ -503,7 +527,7 @@  static struct resource edma_resources[] = {
 
 static struct platform_device dm646x_edma_device = {
 	.name			= "edma",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &dm646x_edma_info,
 	.num_resources		= ARRAY_SIZE(edma_resources),
 	.resource		= edma_resources,
diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index 0a021ff..50ac74f 100644
--- a/arch/arm/mach-davinci/dma.c
+++ b/arch/arm/mach-davinci/dma.c
@@ -106,7 +106,6 @@ 
 
 #define EDMA_MAX_DMACH           64
 #define EDMA_MAX_PARAMENTRY     512
-#define EDMA_MAX_EVQUE            2	/* FIXME too small */
 #define EDMA_MAX_CC               2
 
 
@@ -258,22 +257,6 @@  static const struct edmacc_param dummy_paramset = {
 	.ccnt = 1,
 };
 
-static const int __initconst
-queue_tc_mapping[EDMA_MAX_EVQUE + 1][2] = {
-/* {event queue no, TC no} */
-	{0, 0},
-	{1, 1},
-	{-1, -1}
-};
-
-static const int __initconst
-queue_priority_mapping[EDMA_MAX_EVQUE + 1][2] = {
-	/* {event queue no, Priority} */
-	{0, 3},
-	{1, 7},
-	{-1, -1}
-};
-
 /*****************************************************************************/
 
 static void map_dmach_queue(unsigned ctlr, unsigned ch_no,
@@ -1191,6 +1174,8 @@  EXPORT_SYMBOL(edma_clear_event);
 static int __init edma_probe(struct platform_device *pdev)
 {
 	struct edma_soc_info	*info = pdev->dev.platform_data;
+	const s8		(*queue_priority_mapping)[2];
+	const s8		(*queue_tc_mapping)[2];
 	int			i;
 	int			status;
 	const s8		*noevent;
@@ -1289,6 +1274,9 @@  static int __init edma_probe(struct platform_device *pdev)
 	for (i = 0; i < edma_info[pdev->id]->num_channels; i++)
 		map_dmach_queue(pdev->id, i, EVENTQ_1);
 
+	queue_tc_mapping = info->queue_tc_mapping;
+	queue_priority_mapping = info->queue_priority_mapping;
+
 	/* Event queue to TC mapping */
 	for (i = 0; queue_tc_mapping[i][0] != -1; i++)
 		map_queue_tc(pdev->id, queue_tc_mapping[i][0],
diff --git a/arch/arm/mach-davinci/include/mach/edma.h b/arch/arm/mach-davinci/include/mach/edma.h
index e2f7deb..ba2ebdd 100644
--- a/arch/arm/mach-davinci/include/mach/edma.h
+++ b/arch/arm/mach-davinci/include/mach/edma.h
@@ -224,6 +224,8 @@  struct edma_soc_info {
 
 	/* list of channels with no even trigger; terminated by "-1" */
 	const s8	*noevent;
+	const s8	(*queue_tc_mapping)[2];
+	const s8	(*queue_priority_mapping)[2];
 };
 
 #endif