From 40262b2b6efac507005a2c981175266bf81152a7 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 24 Jul 2009 11:43:01 +0100 Subject: [PATCH] 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 Acked-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/at91sam9g45_devices.c | 49 ++++++++++++++++++++++++ 1 file changed, 49 insertions(+) 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 @@ -24,10 +24,58 @@ #include #include #include +#include #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(); -- 2.39.2