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-rw-r--r--arch/arm/mach-mx37/dma.c666
1 files changed, 666 insertions, 0 deletions
diff --git a/arch/arm/mach-mx37/dma.c b/arch/arm/mach-mx37/dma.c
new file mode 100644
index 000000000000..5732c5803888
--- /dev/null
+++ b/arch/arm/mach-mx37/dma.c
@@ -0,0 +1,666 @@
+/*
+ * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <linux/init.h>
+#include <linux/device.h>
+#include <asm/dma.h>
+#include <mach/hardware.h>
+
+#include "serial.h"
+
+#define MXC_MMC_BUFFER_ACCESS 0x20
+#define MXC_SDHC_MMC_WML 512
+#define MXC_SDHC_SD_WML 512
+#define MXC_SSI_TX0_REG 0x0
+#define MXC_SSI_TX1_REG 0x4
+#define MXC_SSI_RX0_REG 0x8
+#define MXC_SSI_RX1_REG 0xC
+#define MXC_SSI_TXFIFO_WML 0x4
+#define MXC_SSI_RXFIFO_WML 0x6
+#define MXC_SPDIF_TXFIFO_WML 0x0
+#define MXC_SPDIF_TX_REG 0x2C
+
+typedef struct mxc_sdma_info_entry_s {
+ mxc_dma_device_t device;
+ mxc_sdma_channel_params_t *chnl_info;
+} mxc_sdma_info_entry_t;
+
+static mxc_sdma_channel_params_t mxc_sdma_uart1_rx_params = {
+ .chnl_params = {
+ .watermark_level = UART1_UFCR_RXTL,
+ .per_address = UART1_BASE_ADDR,
+ .peripheral_type = UART,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_UART1_RX,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_UART1_RX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_uart1_tx_params = {
+ .chnl_params = {
+ .watermark_level = UART1_UFCR_TXTL,
+ .per_address = UART1_BASE_ADDR + MXC_UARTUTXD,
+ .peripheral_type = UART,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_UART1_TX,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_UART1_TX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_uart2_rx_params = {
+ .chnl_params = {
+ .watermark_level = UART2_UFCR_RXTL,
+ .per_address = UART2_BASE_ADDR,
+ .peripheral_type = UART,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_UART2_RX,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_UART2_RX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_uart2_tx_params = {
+ .chnl_params = {
+ .watermark_level = UART2_UFCR_TXTL,
+ .per_address = UART2_BASE_ADDR + MXC_UARTUTXD,
+ .peripheral_type = UART,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_UART2_TX,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_UART2_TX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_uart3_rx_params = {
+ .chnl_params = {
+ .watermark_level = UART3_UFCR_RXTL,
+ .per_address = UART3_BASE_ADDR,
+ .peripheral_type = UART_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_UART3_RX,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_UART3_RX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_uart3_tx_params = {
+ .chnl_params = {
+ .watermark_level = UART3_UFCR_TXTL,
+ .per_address = UART3_BASE_ADDR + MXC_UARTUTXD,
+ .peripheral_type = UART_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_UART3_TX,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_UART3_TX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_mmc1_width1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SDHC_MMC_WML,
+ .per_address =
+ MMC_SDHC1_BASE_ADDR + MXC_MMC_BUFFER_ACCESS,
+ .peripheral_type = MMC,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SDHC1,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_MMC1,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_mmc1_width4_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SDHC_SD_WML,
+ .per_address =
+ MMC_SDHC1_BASE_ADDR + MXC_MMC_BUFFER_ACCESS,
+ .peripheral_type = MMC,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SDHC1,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_MMC1,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_mmc2_width1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SDHC_MMC_WML / 32,
+ .per_address =
+ MMC_SDHC2_BASE_ADDR + MXC_MMC_BUFFER_ACCESS,
+ .peripheral_type = MMC,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SDHC2,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_MMC2,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_mmc2_width4_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SDHC_SD_WML / 8,
+ .per_address =
+ MMC_SDHC2_BASE_ADDR + MXC_MMC_BUFFER_ACCESS,
+ .peripheral_type = MMC,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SDHC2,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_MMC2,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_8bit_rx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_RX0_REG,
+ .peripheral_type = SSI,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI1_RX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_8bit_tx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_TX0_REG,
+ .peripheral_type = SSI,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI1_TX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_16bit_rx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_RX0_REG,
+ .peripheral_type = SSI,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI1_RX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_16bit_tx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_TX0_REG,
+ .peripheral_type = SSI,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI1_TX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_24bit_rx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_RX0_REG,
+ .peripheral_type = SSI,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI1_RX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_24bit_tx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_TX0_REG,
+ .peripheral_type = SSI,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI1_TX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_8bit_rx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_RX1_REG,
+ .peripheral_type = SSI,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI1_RX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_8bit_tx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_TX1_REG,
+ .peripheral_type = SSI,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI1_TX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_16bit_rx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_RX1_REG,
+ .peripheral_type = SSI,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI1_RX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_16bit_tx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_TX1_REG,
+ .peripheral_type = SSI,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI1_TX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_24bit_rx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_RX1_REG,
+ .peripheral_type = SSI,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI1_RX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi1_24bit_tx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI1_BASE_ADDR + MXC_SSI_TX1_REG,
+ .peripheral_type = SSI,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI1_TX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI1_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_8bit_rx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_RX0_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI2_RX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_8bit_tx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_TX0_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI2_TX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_16bit_rx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_RX0_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI2_RX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_16bit_tx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_TX0_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI2_TX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_24bit_rx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_RX0_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI2_RX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_24bit_tx0_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_TX0_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI2_TX1,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_8bit_rx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_RX1_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI2_RX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_8bit_tx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_TX1_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI2_TX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_8BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_16bit_rx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_RX1_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI2_RX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_16bit_tx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_TX1_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI2_TX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_24bit_rx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_RXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_RX1_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_SSI2_RX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_RX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ssi2_24bit_tx1_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SSI_TXFIFO_WML,
+ .per_address = SSI2_BASE_ADDR + MXC_SSI_TX1_REG,
+ .peripheral_type = SSI_SP,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SSI2_TX2,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SSI2_TX,
+ .chnl_priority = 2,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_memory_params = {
+ .chnl_params = {
+ .peripheral_type = MEMORY,
+ .transfer_type = emi_2_emi,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_MEMORY,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ata_rx_params = {
+ .chnl_params = {
+ .watermark_level = MXC_IDE_DMA_WATERMARK,
+ .per_address = ATA_DMA_BASE_ADDR,
+ .peripheral_type = ATA,
+ .transfer_type = per_2_emi,
+ .event_id = DMA_REQ_ATA_TX_END,
+ .event_id2 = DMA_REQ_ATA_RX,
+ .bd_number = MXC_IDE_DMA_BD_NR,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_ATA_RX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_ata_tx_params = {
+ .chnl_params = {
+ .watermark_level = MXC_IDE_DMA_WATERMARK,
+ .per_address = ATA_DMA_BASE_ADDR + 0x18,
+ .peripheral_type = ATA,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_ATA_TX_END,
+ .event_id2 = DMA_REQ_ATA_TX,
+ .bd_number = MXC_IDE_DMA_BD_NR,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_ATA_TX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_spdif_16bit_tx_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SPDIF_TXFIFO_WML,
+ .per_address = SPDIF_BASE_ADDR + MXC_SPDIF_TX_REG,
+ .peripheral_type = SPDIF,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SPDIF_TX,
+ .bd_number = 32,
+ .word_size = TRANSFER_16BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SPDIF_TX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_channel_params_t mxc_sdma_spdif_32bit_tx_params = {
+ .chnl_params = {
+ .watermark_level = MXC_SPDIF_TXFIFO_WML,
+ .per_address = SPDIF_BASE_ADDR + MXC_SPDIF_TX_REG,
+ .peripheral_type = SPDIF,
+ .transfer_type = emi_2_per,
+ .event_id = DMA_REQ_SPDIF_TX,
+ .bd_number = 32,
+ .word_size = TRANSFER_32BIT,
+ },
+ .channel_num = MXC_DMA_CHANNEL_SPDIF_TX,
+ .chnl_priority = MXC_SDMA_DEFAULT_PRIORITY,
+};
+
+static mxc_sdma_info_entry_t mxc_sdma_active_dma_info[] = {
+ {MXC_DMA_UART1_RX, &mxc_sdma_uart1_rx_params},
+ {MXC_DMA_UART1_TX, &mxc_sdma_uart1_tx_params},
+ {MXC_DMA_UART2_RX, &mxc_sdma_uart2_rx_params},
+ {MXC_DMA_UART2_TX, &mxc_sdma_uart2_tx_params},
+ {MXC_DMA_UART3_RX, &mxc_sdma_uart3_rx_params},
+ {MXC_DMA_UART3_TX, &mxc_sdma_uart3_tx_params},
+ {MXC_DMA_MMC1_WIDTH_1, &mxc_sdma_mmc1_width1_params},
+ {MXC_DMA_MMC1_WIDTH_4, &mxc_sdma_mmc1_width4_params},
+ {MXC_DMA_MMC2_WIDTH_1, &mxc_sdma_mmc2_width1_params},
+ {MXC_DMA_MMC2_WIDTH_4, &mxc_sdma_mmc2_width4_params},
+ {MXC_DMA_SSI1_8BIT_RX0, &mxc_sdma_ssi1_8bit_rx0_params},
+ {MXC_DMA_SSI1_8BIT_TX0, &mxc_sdma_ssi1_8bit_tx0_params},
+ {MXC_DMA_SSI1_16BIT_RX0, &mxc_sdma_ssi1_16bit_rx0_params},
+ {MXC_DMA_SSI1_16BIT_TX0, &mxc_sdma_ssi1_16bit_tx0_params},
+ {MXC_DMA_SSI1_24BIT_RX0, &mxc_sdma_ssi1_24bit_rx0_params},
+ {MXC_DMA_SSI1_24BIT_TX0, &mxc_sdma_ssi1_24bit_tx0_params},
+ {MXC_DMA_SSI1_8BIT_RX1, &mxc_sdma_ssi1_8bit_rx1_params},
+ {MXC_DMA_SSI1_8BIT_TX1, &mxc_sdma_ssi1_8bit_tx1_params},
+ {MXC_DMA_SSI1_16BIT_RX1, &mxc_sdma_ssi1_16bit_rx1_params},
+ {MXC_DMA_SSI1_16BIT_TX1, &mxc_sdma_ssi1_16bit_tx1_params},
+ {MXC_DMA_SSI1_24BIT_RX1, &mxc_sdma_ssi1_24bit_rx1_params},
+ {MXC_DMA_SSI1_24BIT_TX1, &mxc_sdma_ssi1_24bit_tx1_params},
+ {MXC_DMA_SSI2_8BIT_RX0, &mxc_sdma_ssi2_8bit_rx0_params},
+ {MXC_DMA_SSI2_8BIT_TX0, &mxc_sdma_ssi2_8bit_tx0_params},
+ {MXC_DMA_SSI2_16BIT_RX0, &mxc_sdma_ssi2_16bit_rx0_params},
+ {MXC_DMA_SSI2_16BIT_TX0, &mxc_sdma_ssi2_16bit_tx0_params},
+ {MXC_DMA_SSI2_24BIT_RX0, &mxc_sdma_ssi2_24bit_rx0_params},
+ {MXC_DMA_SSI2_24BIT_TX0, &mxc_sdma_ssi2_24bit_tx0_params},
+ {MXC_DMA_SSI2_8BIT_RX1, &mxc_sdma_ssi2_8bit_rx1_params},
+ {MXC_DMA_SSI2_8BIT_TX1, &mxc_sdma_ssi2_8bit_tx1_params},
+ {MXC_DMA_SSI2_16BIT_RX1, &mxc_sdma_ssi2_16bit_rx1_params},
+ {MXC_DMA_SSI2_16BIT_TX1, &mxc_sdma_ssi2_16bit_tx1_params},
+ {MXC_DMA_SSI2_24BIT_RX1, &mxc_sdma_ssi2_24bit_rx1_params},
+ {MXC_DMA_SSI2_24BIT_TX1, &mxc_sdma_ssi2_24bit_tx1_params},
+ {MXC_DMA_MEMORY, &mxc_sdma_memory_params},
+ {MXC_DMA_ATA_RX, &mxc_sdma_ata_rx_params},
+ {MXC_DMA_ATA_TX, &mxc_sdma_ata_tx_params},
+ {MXC_DMA_SPDIF_16BIT_TX, &mxc_sdma_spdif_16bit_tx_params},
+ {MXC_DMA_SPDIF_32BIT_TX, &mxc_sdma_spdif_32bit_tx_params},
+};
+
+static int mxc_sdma_info_entrys =
+ sizeof(mxc_sdma_active_dma_info) / sizeof(mxc_sdma_active_dma_info[0]);
+
+/*!
+ * This functions Returns the SDMA paramaters associated for a module
+ *
+ * @param channel_id the ID of the module requesting DMA
+ * @return returns the sdma parameters structure for the device
+ */
+mxc_sdma_channel_params_t *mxc_sdma_get_channel_params(mxc_dma_device_t
+ channel_id)
+{
+ mxc_sdma_info_entry_t *p = mxc_sdma_active_dma_info;
+ int i;
+
+ for (i = 0; i < mxc_sdma_info_entrys; i++, p++) {
+ if (p->device == channel_id) {
+ return p->chnl_info;
+ }
+ }
+ return NULL;
+}
+
+/*!
+ * This functions marks the SDMA channels that are statically allocated
+ *
+ * @param chnl the channel array used to store channel information
+ */
+void mxc_get_static_channels(mxc_dma_channel_t * chnl)
+{
+#ifdef CONFIG_SDMA_IRAM
+ int i;
+ for (i = MXC_DMA_CHANNEL_IRAM; i < MAX_DMA_CHANNELS; i++)
+ chnl[i].dynamic = 0;
+#endif
+}
+
+EXPORT_SYMBOL(mxc_sdma_get_channel_params);
+EXPORT_SYMBOL(mxc_get_static_channels);
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-23 04:12:34 +0000