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authorNicolas Ferre <nicolas.ferre@atmel.com>2009-07-24 14:43:01 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-09-21 19:02:15 +0400
commit40262b2b6efac507005a2c981175266bf81152a7 (patch)
tree8d5ed29c6ffb02702e6d790966f97f24a5bff796 /arch
parent6ff89e9d62014b0e21fad96cf4d72d68b3aa0d8c (diff)
downloadlinux-40262b2b6efac507005a2c981175266bf81152a7.tar.xz
ARM: 5621/1: at91/dmaengine: integration of at_hdmac driver in at91sam9g45 series
This is the integration of DMA engine driver into at91sam9g45 series device file. The associated driver is at_hdmac. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-at91/at91sam9g45_devices.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index d746e8621bc2..45720c84f0bf 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -24,11 +24,59 @@
#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();