1 files changed, 83 insertions, 0 deletions

diff --git a/extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch b/extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch
new file mode 100644
index 00000000..a7415ff0
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap/usrp/0002-Add-functions-to-dma.c-to-set-address-and-length-for.patch
@@ -0,0 +1,83 @@
+From fa589f1ad83e8795ba0509e7899dd1a6926c5fbd Mon Sep 17 00:00:00 2001
+From: Philip Balister <philip@opensdr.com>
+Date: Thu, 22 Apr 2010 19:41:58 -0700
+Subject: [PATCH 2/3] Add functions to dma.c to set address and length for src and dest.
+
+---
+ arch/arm/plat-omap/dma.c              |   30 ++++++++++++++++++++++++++++++
+ arch/arm/plat-omap/include/plat/dma.h |    4 ++++
+ 2 files changed, 34 insertions(+), 0 deletions(-)
+
+diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
+index c4b2b47..f28f756 100644
+--- a/arch/arm/plat-omap/dma.c
++++ b/arch/arm/plat-omap/dma.c
+@@ -471,6 +471,21 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
+ }
+ EXPORT_SYMBOL(omap_set_dma_src_burst_mode);
+ 
++void omap_set_dma_src_addr_size(int lch, unsigned int addr, int elem_count)
++{
++
++       if (cpu_class_is_omap1()) {
++               p->dma_write(addr >> 16, CSSA, lch);
++               //p->dma_write((u16)addr, CSSA_L, lch);
++       }
++
++       if (cpu_class_is_omap2())
++               p->dma_write(addr, CSSA, lch);
++
++       p->dma_write(elem_count, CEN, lch);
++}
++EXPORT_SYMBOL_GPL(omap_set_dma_src_addr_size);
++
+ /* Note that dest_port is only for OMAP1 */
+ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
+                              unsigned long dest_start,
+@@ -561,6 +576,21 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
+ }
+ EXPORT_SYMBOL(omap_set_dma_dest_burst_mode);
+ 
++void omap_set_dma_dest_addr_size(int lch, unsigned int addr, int elem_count)
++{
++
++       if (cpu_class_is_omap1()) {
++               p->dma_write(addr >> 16, CDSA, lch);
++               //p->dma_write((u16)addr, CDSA_L, lch);
++       }
++
++       if (cpu_class_is_omap2())
++               p->dma_write(addr, CDSA, lch);
++
++       p->dma_write(elem_count, CEN, lch);
++}
++EXPORT_SYMBOL_GPL(omap_set_dma_dest_addr_size);
++
+ static inline void omap_enable_channel_irq(int lch)
+ {
+        u32 status;
+diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h
+index d1c916f..1e7243e 100644
+--- a/arch/arm/plat-omap/include/plat/dma.h
++++ b/arch/arm/plat-omap/include/plat/dma.h
+@@ -462,6 +462,8 @@ extern void omap_set_dma_src_index(int lch, int eidx, int fidx);
+ extern void omap_set_dma_src_data_pack(int lch, int enable);
+ extern void omap_set_dma_src_burst_mode(int lch,
+                                        enum omap_dma_burst_mode burst_mode);
++extern void omap_set_dma_src_addr_size(int lch, unsigned int addr,
++                               int elem_count);
+ 
+ extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
+                                     unsigned long dest_start,
+@@ -470,6 +472,8 @@ extern void omap_set_dma_dest_index(int lch, int eidx, int fidx);
+ extern void omap_set_dma_dest_data_pack(int lch, int enable);
+ extern void omap_set_dma_dest_burst_mode(int lch,
+                                         enum omap_dma_burst_mode burst_mode);
++extern void omap_set_dma_dest_addr_size(int lch, unsigned int addr,
++                                       int elem_count);
+ 
+ extern void omap_set_dma_params(int lch,
+                                struct omap_dma_channel_params *params);
+-- 
+1.6.6.1
+