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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-08 10:00:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-08 10:00:55 -0700
commit44d51a029f95d49c5c7ccd7808f81904c20c3abd (patch)
tree41b82695b3bfb73b4146809546c2d79d6eaa4c47 /arch/arm/mach-davinci/board-dm646x-evm.c
parent2d53056973079e6c2ffc0d7ae3afbdd3d4f18ae3 (diff)
parentcce3dddb87e4b72b1787527eec6826a43a562e71 (diff)
Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci
* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: davinci: dm646x EVM: Specify reserved EDMA channel/slots davinci: da8xx/omapl EVM: Specify reserved channels/slots davinci: support for EDMA resource sharing davinci: edma: provide ability to detect insufficient CC info data davinci: da8xx: sparse cleanup: remove duplicate entries in irq priorities davinci: DM365: fixed second serial port Davinci: tnetv107x evm board initial support Davinci: tnetv107x initial gpio support Davinci: tnetv107x soc support Davinci: tnetv107x decompresser uart definitions Davinci: generalized debug macros
Diffstat (limited to 'arch/arm/mach-davinci/board-dm646x-evm.c')
-rw-r--r--arch/arm/mach-davinci/board-dm646x-evm.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 87521f2d69c..4502f346b2b 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -721,6 +721,39 @@ static struct davinci_uart_config uart_config __initdata = {
#define DM646X_EVM_PHY_MASK (0x2)
#define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
+/*
+ * 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}
+};
+
+static struct edma_rsv_info dm646x_edma_rsv[] = {
+ {
+ .rsv_chans = dm646x_dma_rsv_chans,
+ .rsv_slots = dm646x_dma_rsv_slots,
+ },
+};
+
static __init void evm_init(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
@@ -732,6 +765,8 @@ static __init void evm_init(void)
platform_device_register(&davinci_nand_device);
+ dm646x_init_edma(dm646x_edma_rsv);
+
if (HAS_ATA)
davinci_init_ide();