davinci: dm646x EVM: Specify reserved EDMA channel/slots

Not all the channels and slots available on the DM646x EVM
are used by the devices on the EVM. These resources can be
used by the DSP to speed up codec operations.

This patch reserves these channels for the DSP.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index bfc887e9f118..e4a3df1872ac 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -879,6 +879,13 @@ void dm646x_setup_vpif(struct vpif_display_config *display_config,
         platform_device_register(&vpif_capture_dev);
 }
 
+int __init dm646x_init_edma(struct edma_rsv_info *rsv)
+{
+        edma_cc0_info.rsv = rsv;
+
+        return platform_device_register(&dm646x_edma_device);
+}
+
 void __init dm646x_init(void)
 {
         dm646x_board_setup_refclk(&ref_clk);
@@ -890,7 +897,6 @@ static int __init dm646x_init_devices(void)
         if (!cpu_is_davinci_dm646x())
                 return 0;
 
-        platform_device_register(&dm646x_edma_device);
         platform_device_register(&dm646x_emac_device);
         return 0;
 }