Пример #1
0
static int __init s3c64xx_dma_init(void)
{
	int ret;

	printk(KERN_INFO "%s: Registering DMA channels\n", __func__);

	dma_pool = dma_pool_create("DMA-LLI", NULL, 32, 16, 0);
	if (!dma_pool) {
		printk(KERN_ERR "%s: failed to create pool\n", __func__);
		return -ENOMEM;
	}

	ret = sysdev_class_register(&dma_sysclass);
	if (ret) {
		printk(KERN_ERR "%s: failed to create sysclass\n", __func__);
		return -ENOMEM;
	}

	/* Set all DMA configuration to be DMA, not SDMA */
	writel(0xffffff, S3C_SYSREG(0x110));

	/* Register standard DMA controlers */
	s3c64xx_dma_init1(0, DMACH_UART0, IRQ_DMA0, 0x75000000);
	s3c64xx_dma_init1(8, DMACH_PCM1_TX, IRQ_DMA1, 0x75100000);

	return 0;
}
Пример #2
0
static int __init s3c64xx_dma_init(void)
{
	int ret;

	printk(KERN_INFO "%s: Registering DMA channels\n", __func__);

	dma_pool = dma_pool_create("DMA-LLI", NULL, sizeof(struct pl080s_lli), 16, 0);
	if (!dma_pool) {
		printk(KERN_ERR "%s: failed to create pool\n", __func__);
		return -ENOMEM;
	}

	ret = sysdev_class_register(&dma_sysclass);
	if (ret) {
		printk(KERN_ERR "%s: failed to create sysclass\n", __func__);
		return -ENOMEM;
	}

	
	writel(0xffffff, S3C_SYSREG(0x110));

	
	s3c64xx_dma_init1(0, DMACH_UART0, IRQ_DMA0, 0x75000000);
	s3c64xx_dma_init1(8, DMACH_PCM1_TX, IRQ_DMA1, 0x75100000);

	return 0;
}