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-rw-r--r--arch/blackfin/mach-bf548/dma.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf548/dma.c b/arch/blackfin/mach-bf548/dma.c
new file mode 100644
index 000000000000..a8184113be48
--- /dev/null
+++ b/arch/blackfin/mach-bf548/dma.c
@@ -0,0 +1,156 @@
+/*
+ * File: arch/blackfin/mach-bf561/dma.c
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description: This file contains the simple DMA Implementation for Blackfin
+ *
+ * Modified:
+ * Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <asm/blackfin.h>
+#include <asm/dma.h>
+
+ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+ (struct dma_register *) DMA0_NEXT_DESC_PTR,
+ (struct dma_register *) DMA1_NEXT_DESC_PTR,
+ (struct dma_register *) DMA2_NEXT_DESC_PTR,
+ (struct dma_register *) DMA3_NEXT_DESC_PTR,
+ (struct dma_register *) DMA4_NEXT_DESC_PTR,
+ (struct dma_register *) DMA5_NEXT_DESC_PTR,
+ (struct dma_register *) DMA6_NEXT_DESC_PTR,
+ (struct dma_register *) DMA7_NEXT_DESC_PTR,
+ (struct dma_register *) DMA8_NEXT_DESC_PTR,
+ (struct dma_register *) DMA9_NEXT_DESC_PTR,
+ (struct dma_register *) DMA10_NEXT_DESC_PTR,
+ (struct dma_register *) DMA11_NEXT_DESC_PTR,
+ (struct dma_register *) DMA12_NEXT_DESC_PTR,
+ (struct dma_register *) DMA13_NEXT_DESC_PTR,
+ (struct dma_register *) DMA14_NEXT_DESC_PTR,
+ (struct dma_register *) DMA15_NEXT_DESC_PTR,
+ (struct dma_register *) DMA16_NEXT_DESC_PTR,
+ (struct dma_register *) DMA17_NEXT_DESC_PTR,
+ (struct dma_register *) DMA18_NEXT_DESC_PTR,
+ (struct dma_register *) DMA19_NEXT_DESC_PTR,
+ (struct dma_register *) DMA20_NEXT_DESC_PTR,
+ (struct dma_register *) DMA21_NEXT_DESC_PTR,
+ (struct dma_register *) DMA22_NEXT_DESC_PTR,
+ (struct dma_register *) DMA23_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D0_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S0_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D2_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S2_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D3_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S3_NEXT_DESC_PTR,
+};
+
+int channel2irq(unsigned int channel)
+{
+ int ret_irq = -1;
+
+ switch (channel) {
+ case CH_SPORT0_RX:
+ ret_irq = IRQ_SPORT0_RX;
+ break;
+ case CH_SPORT0_TX:
+ ret_irq = IRQ_SPORT0_TX;
+ break;
+ case CH_SPORT1_RX:
+ ret_irq = IRQ_SPORT1_RX;
+ break;
+ case CH_SPORT1_TX:
+ ret_irq = IRQ_SPORT1_TX;
+ case CH_SPI0:
+ ret_irq = IRQ_SPI0;
+ break;
+ case CH_SPI1:
+ ret_irq = IRQ_SPI1;
+ break;
+ case CH_UART0_RX:
+ ret_irq = IRQ_UART_RX;
+ break;
+ case CH_UART0_TX:
+ ret_irq = IRQ_UART_TX;
+ break;
+ case CH_UART1_RX:
+ ret_irq = IRQ_UART_RX;
+ break;
+ case CH_UART1_TX:
+ ret_irq = IRQ_UART_TX;
+ break;
+ case CH_EPPI0:
+ ret_irq = IRQ_EPPI0;
+ break;
+ case CH_EPPI1:
+ ret_irq = IRQ_EPPI1;
+ break;
+ case CH_EPPI2:
+ ret_irq = IRQ_EPPI2;
+ break;
+ case CH_PIXC_IMAGE:
+ ret_irq = IRQ_PIXC_IN0;
+ break;
+ case CH_PIXC_OVERLAY:
+ ret_irq = IRQ_PIXC_IN1;
+ break;
+ case CH_PIXC_OUTPUT:
+ ret_irq = IRQ_PIXC_OUT;
+ break;
+ case CH_SPORT2_RX:
+ ret_irq = IRQ_SPORT2_RX;
+ break;
+ case CH_SPORT2_TX:
+ ret_irq = IRQ_SPORT2_TX;
+ break;
+ case CH_SPORT3_RX:
+ ret_irq = IRQ_SPORT3_RX;
+ break;
+ case CH_SPORT3_TX:
+ ret_irq = IRQ_SPORT3_TX;
+ break;
+ case CH_SDH:
+ ret_irq = IRQ_SDH;
+ break;
+ case CH_SPI2:
+ ret_irq = IRQ_SPI2;
+ break;
+ case CH_MEM_STREAM0_SRC:
+ case CH_MEM_STREAM0_DEST:
+ ret_irq = IRQ_MDMAS0;
+ break;
+ case CH_MEM_STREAM1_SRC:
+ case CH_MEM_STREAM1_DEST:
+ ret_irq = IRQ_MDMAS1;
+ break;
+ case CH_MEM_STREAM2_SRC:
+ case CH_MEM_STREAM2_DEST:
+ ret_irq = IRQ_MDMAS2;
+ break;
+ case CH_MEM_STREAM3_SRC:
+ case CH_MEM_STREAM3_DEST:
+ ret_irq = IRQ_MDMAS3;
+ break;
+ }
+ return ret_irq;
+}