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authorVictor Rodriguez <vm.rod25@gmail.com>2010-12-27 16:43:09 -0600
committerKevin Hilman <khilman@ti.com>2011-02-28 14:53:28 -0800
commit5f72f380093afd378259e4a50f9fa2380457b70b (patch)
tree8e240137e3549c77c92109e883161f12bfad5c86 /arch/arm/mach-davinci
parentbb59b7fdc1aacde27a1d6254f1e647a794fa7735 (diff)
davinci: EDMA support for Omapl138-Hawkboard
This patch adds EDMA support for the Hawkboard-L138 system Signed-off-by: Victor Rodriguez <vm.rod25@gmail.com> Tested-by: Rene Gonzalez <renegs.2378@gmail.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r--arch/arm/mach-davinci/board-omapl138-hawk.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index 75b3fe23ee6..cefff9b86f7 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -60,6 +60,55 @@ static __init void omapl138_hawk_config_emac(void)
__func__, ret);
}
+/*
+ * The following EDMA channels/slots are not being used by drivers (for
+ * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
+ * hence they are being reserved for codecs on the DSP side.
+ */
+static const s16 da850_dma0_rsv_chans[][2] = {
+ /* (offset, number) */
+ { 8, 6},
+ {24, 4},
+ {30, 2},
+ {-1, -1}
+};
+
+static const s16 da850_dma0_rsv_slots[][2] = {
+ /* (offset, number) */
+ { 8, 6},
+ {24, 4},
+ {30, 50},
+ {-1, -1}
+};
+
+static const s16 da850_dma1_rsv_chans[][2] = {
+ /* (offset, number) */
+ { 0, 28},
+ {30, 2},
+ {-1, -1}
+};
+
+static const s16 da850_dma1_rsv_slots[][2] = {
+ /* (offset, number) */
+ { 0, 28},
+ {30, 90},
+ {-1, -1}
+};
+
+static struct edma_rsv_info da850_edma_cc0_rsv = {
+ .rsv_chans = da850_dma0_rsv_chans,
+ .rsv_slots = da850_dma0_rsv_slots,
+};
+
+static struct edma_rsv_info da850_edma_cc1_rsv = {
+ .rsv_chans = da850_dma1_rsv_chans,
+ .rsv_slots = da850_dma1_rsv_slots,
+};
+
+static struct edma_rsv_info *da850_edma_rsv[2] = {
+ &da850_edma_cc0_rsv,
+ &da850_edma_cc1_rsv,
+};
static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
.enabled_uarts = 0x7,
@@ -73,6 +122,11 @@ static __init void omapl138_hawk_init(void)
omapl138_hawk_config_emac();
+ ret = da850_register_edma(da850_edma_rsv);
+ if (ret)
+ pr_warning("%s: EDMA registration failed: %d\n",
+ __func__, ret);
+
ret = da8xx_register_watchdog();
if (ret)
pr_warning("omapl138_hawk_init: "