1 files changed, 163 insertions, 0 deletions
diff --git a/arch/arm/mach-iop32x/adma.c b/arch/arm/mach-iop32x/adma.c
new file mode 100644
index 000000000..764bcbff9
--- /dev/null
+++ b/arch/arm/mach-iop32x/adma.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * platform device definitions for the iop3xx dma/xor engines
+ * Copyright © 2006, Intel Corporation.
+ */
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_data/dma-iop32x.h>
+
+#include "iop3xx.h"
+#include "irqs.h"
+
+#define IRQ_DMA0_EOT IRQ_IOP32X_DMA0_EOT
+#define IRQ_DMA0_EOC IRQ_IOP32X_DMA0_EOC
+#define IRQ_DMA0_ERR IRQ_IOP32X_DMA0_ERR
+
+#define IRQ_DMA1_EOT IRQ_IOP32X_DMA1_EOT
+#define IRQ_DMA1_EOC IRQ_IOP32X_DMA1_EOC
+#define IRQ_DMA1_ERR IRQ_IOP32X_DMA1_ERR
+
+#define IRQ_AA_EOT IRQ_IOP32X_AA_EOT
+#define IRQ_AA_EOC IRQ_IOP32X_AA_EOC
+#define IRQ_AA_ERR IRQ_IOP32X_AA_ERR
+
+/* AAU and DMA Channels */
+static struct resource iop3xx_dma_0_resources[] = {
+	[0] = {
+		.start = IOP3XX_DMA_PHYS_BASE(0),
+		.end = IOP3XX_DMA_UPPER_PA(0),
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_DMA0_EOT,
+		.end = IRQ_DMA0_EOT,
+		.flags = IORESOURCE_IRQ
+	},
+	[2] = {
+		.start = IRQ_DMA0_EOC,
+		.end = IRQ_DMA0_EOC,
+		.flags = IORESOURCE_IRQ
+	},
+	[3] = {
+		.start = IRQ_DMA0_ERR,
+		.end = IRQ_DMA0_ERR,
+		.flags = IORESOURCE_IRQ
+	}
+};
+
+static struct resource iop3xx_dma_1_resources[] = {
+	[0] = {
+		.start = IOP3XX_DMA_PHYS_BASE(1),
+		.end = IOP3XX_DMA_UPPER_PA(1),
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_DMA1_EOT,
+		.end = IRQ_DMA1_EOT,
+		.flags = IORESOURCE_IRQ
+	},
+	[2] = {
+		.start = IRQ_DMA1_EOC,
+		.end = IRQ_DMA1_EOC,
+		.flags = IORESOURCE_IRQ
+	},
+	[3] = {
+		.start = IRQ_DMA1_ERR,
+		.end = IRQ_DMA1_ERR,
+		.flags = IORESOURCE_IRQ
+	}
+};
+
+
+static struct resource iop3xx_aau_resources[] = {
+	[0] = {
+		.start = IOP3XX_AAU_PHYS_BASE,
+		.end = IOP3XX_AAU_UPPER_PA,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_AA_EOT,
+		.end = IRQ_AA_EOT,
+		.flags = IORESOURCE_IRQ
+	},
+	[2] = {
+		.start = IRQ_AA_EOC,
+		.end = IRQ_AA_EOC,
+		.flags = IORESOURCE_IRQ
+	},
+	[3] = {
+		.start = IRQ_AA_ERR,
+		.end = IRQ_AA_ERR,
+		.flags = IORESOURCE_IRQ
+	}
+};
+
+static u64 iop3xx_adma_dmamask = DMA_BIT_MASK(32);
+
+static struct iop_adma_platform_data iop3xx_dma_0_data = {
+	.hw_id = DMA0_ID,
+	.pool_size = PAGE_SIZE,
+};
+
+static struct iop_adma_platform_data iop3xx_dma_1_data = {
+	.hw_id = DMA1_ID,
+	.pool_size = PAGE_SIZE,
+};
+
+static struct iop_adma_platform_data iop3xx_aau_data = {
+	.hw_id = AAU_ID,
+	.pool_size = 3 * PAGE_SIZE,
+};
+
+struct platform_device iop3xx_dma_0_channel = {
+	.name = "iop-adma",
+	.id = 0,
+	.num_resources = 4,
+	.resource = iop3xx_dma_0_resources,
+	.dev = {
+		.dma_mask = &iop3xx_adma_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data = (void *) &iop3xx_dma_0_data,
+	},
+};
+
+struct platform_device iop3xx_dma_1_channel = {
+	.name = "iop-adma",
+	.id = 1,
+	.num_resources = 4,
+	.resource = iop3xx_dma_1_resources,
+	.dev = {
+		.dma_mask = &iop3xx_adma_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data = (void *) &iop3xx_dma_1_data,
+	},
+};
+
+struct platform_device iop3xx_aau_channel = {
+	.name = "iop-adma",
+	.id = 2,
+	.num_resources = 4,
+	.resource = iop3xx_aau_resources,
+	.dev = {
+		.dma_mask = &iop3xx_adma_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data = (void *) &iop3xx_aau_data,
+	},
+};
+
+static int __init iop3xx_adma_cap_init(void)
+{
+	dma_cap_set(DMA_MEMCPY, iop3xx_dma_0_data.cap_mask);
+	dma_cap_set(DMA_INTERRUPT, iop3xx_dma_0_data.cap_mask);
+
+	dma_cap_set(DMA_MEMCPY, iop3xx_dma_1_data.cap_mask);
+	dma_cap_set(DMA_INTERRUPT, iop3xx_dma_1_data.cap_mask);
+
+	dma_cap_set(DMA_XOR, iop3xx_aau_data.cap_mask);
+	dma_cap_set(DMA_INTERRUPT, iop3xx_aau_data.cap_mask);
+
+	return 0;
+}
+
+arch_initcall(iop3xx_adma_cap_init);