davinci: dm365: add EDMA support (15061b5d) · Commits · e / devices / android_kernel_oneplus_sm7250

arch/arm/mach-davinci/dm365.c

+87 −0

Original line number	Diff line number	Diff line
		@@ -660,6 +660,91 @@ static u8 dm365_default_priorities[DAVINCI_N_AINTC_IRQ] = {
		[IRQ_DM365_EMUINT] = 7,
		};

		/* Four Transfer Controllers on DM365 */
		static const s8
		dm365_queue_tc_mapping[][2] = {
		/* {event queue no, TC no} */
		{0, 0},
		{1, 1},
		{2, 2},
		{3, 3},
		{-1, -1},
		};

		static const s8
		dm365_queue_priority_mapping[][2] = {
		/* {event queue no, Priority} */
		{0, 7},
		{1, 7},
		{2, 7},
		{3, 0},
		{-1, -1},
		};

		static struct edma_soc_info dm365_edma_info[] = {
		{
		.n_channel = 64,
		.n_region = 4,
		.n_slot = 256,
		.n_tc = 4,
		.n_cc = 1,
		.queue_tc_mapping = dm365_queue_tc_mapping,
		.queue_priority_mapping = dm365_queue_priority_mapping,
		},
		};

		static struct resource edma_resources[] = {
		{
		.name = "edma_cc0",
		.start = 0x01c00000,
		.end = 0x01c00000 + SZ_64K - 1,
		.flags = IORESOURCE_MEM,
		},
		{
		.name = "edma_tc0",
		.start = 0x01c10000,
		.end = 0x01c10000 + SZ_1K - 1,
		.flags = IORESOURCE_MEM,
		},
		{
		.name = "edma_tc1",
		.start = 0x01c10400,
		.end = 0x01c10400 + SZ_1K - 1,
		.flags = IORESOURCE_MEM,
		},
		{
		.name = "edma_tc2",
		.start = 0x01c10800,
		.end = 0x01c10800 + SZ_1K - 1,
		.flags = IORESOURCE_MEM,
		},
		{
		.name = "edma_tc3",
		.start = 0x01c10c00,
		.end = 0x01c10c00 + SZ_1K - 1,
		.flags = IORESOURCE_MEM,
		},
		{
		.name = "edma0",
		.start = IRQ_CCINT0,
		.flags = IORESOURCE_IRQ,
		},
		{
		.name = "edma0_err",
		.start = IRQ_CCERRINT,
		.flags = IORESOURCE_IRQ,
		},
		/* not using TC_ERR /
		};

		static struct platform_device dm365_edma_device = {
		.name = "edma",
		.id = 0,
		.dev.platform_data = dm365_edma_info,
		.num_resources = ARRAY_SIZE(edma_resources),
		.resource = edma_resources,
		};

		static struct map_desc dm365_io_desc[] = {
		{
		.virtual = IO_VIRT,
		@@ -763,6 +848,8 @@ static int __init dm365_init_devices(void)
		if (!cpu_is_davinci_dm365())
		return 0;

		davinci_cfg_reg(DM365_INT_EDMA_CC);
		platform_device_register(&dm365_edma_device);
		platform_device_register(&dm365_emac_device);

		return 0;