ARM: 5621/1: at91/dmaengine: integration of at_hdmac driver in at91sam9g45 series

[pandora-kernel.git] / arch / arm / mach-at91 / at91sam9g45_devices.c

diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index d746e86..45720c8 100644 (file)
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -24,10 +24,58 @@
 #include <mach/at91sam9g45.h>
 #include <mach/at91sam9g45_matrix.h>
 #include <mach/at91sam9_smc.h>
+#include <mach/at_hdmac.h>
 
 #include "generic.h"
 
 
+/* --------------------------------------------------------------------
+ *  HDMAC - AHB DMA Controller
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
+static u64 hdmac_dmamask = DMA_BIT_MASK(32);
+
+static struct at_dma_platform_data atdma_pdata = {
+       .nr_channels    = 8,
+};
+
+static struct resource hdmac_resources[] = {
+       [0] = {
+               .start  = AT91_BASE_SYS + AT91_DMA,
+               .end    = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       [2] = {
+               .start  = AT91SAM9G45_ID_DMA,
+               .end    = AT91SAM9G45_ID_DMA,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device at_hdmac_device = {
+       .name           = "at_hdmac",
+       .id             = -1,
+       .dev            = {
+                               .dma_mask               = &hdmac_dmamask,
+                               .coherent_dma_mask      = DMA_BIT_MASK(32),
+                               .platform_data          = &atdma_pdata,
+       },
+       .resource       = hdmac_resources,
+       .num_resources  = ARRAY_SIZE(hdmac_resources),
+};
+
+void __init at91_add_device_hdmac(void)
+{
+       dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
+       dma_cap_set(DMA_SLAVE, atdma_pdata.cap_mask);
+       platform_device_register(&at_hdmac_device);
+}
+#else
+void __init at91_add_device_hdmac(void) {}
+#endif
+
+
 /* --------------------------------------------------------------------
  *  USB Host (OHCI)
  * -------------------------------------------------------------------- */
@@ -1220,6 +1268,7 @@ void __init at91_add_device_serial(void) {}
  */
 static int __init at91_add_standard_devices(void)
 {
+       at91_add_device_hdmac();
        at91_add_device_rtc();
        at91_add_device_rtt();
        at91_add_device_watchdog();