| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * driver/dma/coh901318.c |
| * |
| * Copyright (C) 2007-2009 ST-Ericsson |
| * DMA driver for COH 901 318 |
| * Author: Per Friden <per.friden@stericsson.com> |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> /* printk() */ |
| #include <linux/fs.h> /* everything... */ |
| #include <linux/scatterlist.h> |
| #include <linux/slab.h> /* kmalloc() */ |
| #include <linux/dmaengine.h> |
| #include <linux/platform_device.h> |
| #include <linux/device.h> |
| #include <linux/irqreturn.h> |
| #include <linux/interrupt.h> |
| #include <linux/io.h> |
| #include <linux/uaccess.h> |
| #include <linux/debugfs.h> |
| #include <linux/platform_data/dma-coh901318.h> |
| #include <linux/of_dma.h> |
| |
| #include "coh901318.h" |
| #include "dmaengine.h" |
| |
| #define COH901318_MOD32_MASK (0x1F) |
| #define COH901318_WORD_MASK (0xFFFFFFFF) |
| /* INT_STATUS - Interrupt Status Registers 32bit (R/-) */ |
| #define COH901318_INT_STATUS1 (0x0000) |
| #define COH901318_INT_STATUS2 (0x0004) |
| /* TC_INT_STATUS - Terminal Count Interrupt Status Registers 32bit (R/-) */ |
| #define COH901318_TC_INT_STATUS1 (0x0008) |
| #define COH901318_TC_INT_STATUS2 (0x000C) |
| /* TC_INT_CLEAR - Terminal Count Interrupt Clear Registers 32bit (-/W) */ |
| #define COH901318_TC_INT_CLEAR1 (0x0010) |
| #define COH901318_TC_INT_CLEAR2 (0x0014) |
| /* RAW_TC_INT_STATUS - Raw Term Count Interrupt Status Registers 32bit (R/-) */ |
| #define COH901318_RAW_TC_INT_STATUS1 (0x0018) |
| #define COH901318_RAW_TC_INT_STATUS2 (0x001C) |
| /* BE_INT_STATUS - Bus Error Interrupt Status Registers 32bit (R/-) */ |
| #define COH901318_BE_INT_STATUS1 (0x0020) |
| #define COH901318_BE_INT_STATUS2 (0x0024) |
| /* BE_INT_CLEAR - Bus Error Interrupt Clear Registers 32bit (-/W) */ |
| #define COH901318_BE_INT_CLEAR1 (0x0028) |
| #define COH901318_BE_INT_CLEAR2 (0x002C) |
| /* RAW_BE_INT_STATUS - Raw Term Count Interrupt Status Registers 32bit (R/-) */ |
| #define COH901318_RAW_BE_INT_STATUS1 (0x0030) |
| #define COH901318_RAW_BE_INT_STATUS2 (0x0034) |
| |
| /* |
| * CX_CFG - Channel Configuration Registers 32bit (R/W) |
| */ |
| #define COH901318_CX_CFG (0x0100) |
| #define COH901318_CX_CFG_SPACING (0x04) |
| /* Channel enable activates tha dma job */ |
| #define COH901318_CX_CFG_CH_ENABLE (0x00000001) |
| #define COH901318_CX_CFG_CH_DISABLE (0x00000000) |
| /* Request Mode */ |
| #define COH901318_CX_CFG_RM_MASK (0x00000006) |
| #define COH901318_CX_CFG_RM_MEMORY_TO_MEMORY (0x0 << 1) |
| #define COH901318_CX_CFG_RM_PRIMARY_TO_MEMORY (0x1 << 1) |
| #define COH901318_CX_CFG_RM_MEMORY_TO_PRIMARY (0x1 << 1) |
| #define COH901318_CX_CFG_RM_PRIMARY_TO_SECONDARY (0x3 << 1) |
| #define COH901318_CX_CFG_RM_SECONDARY_TO_PRIMARY (0x3 << 1) |
| /* Linked channel request field. RM must == 11 */ |
| #define COH901318_CX_CFG_LCRF_SHIFT 3 |
| #define COH901318_CX_CFG_LCRF_MASK (0x000001F8) |
| #define COH901318_CX_CFG_LCR_DISABLE (0x00000000) |
| /* Terminal Counter Interrupt Request Mask */ |
| #define COH901318_CX_CFG_TC_IRQ_ENABLE (0x00000200) |
| #define COH901318_CX_CFG_TC_IRQ_DISABLE (0x00000000) |
| /* Bus Error interrupt Mask */ |
| #define COH901318_CX_CFG_BE_IRQ_ENABLE (0x00000400) |
| #define COH901318_CX_CFG_BE_IRQ_DISABLE (0x00000000) |
| |
| /* |
| * CX_STAT - Channel Status Registers 32bit (R/-) |
| */ |
| #define COH901318_CX_STAT (0x0200) |
| #define COH901318_CX_STAT_SPACING (0x04) |
| #define COH901318_CX_STAT_RBE_IRQ_IND (0x00000008) |
| #define COH901318_CX_STAT_RTC_IRQ_IND (0x00000004) |
| #define COH901318_CX_STAT_ACTIVE (0x00000002) |
| #define COH901318_CX_STAT_ENABLED (0x00000001) |
| |
| /* |
| * CX_CTRL - Channel Control Registers 32bit (R/W) |
| */ |
| #define COH901318_CX_CTRL (0x0400) |
| #define COH901318_CX_CTRL_SPACING (0x10) |
| /* Transfer Count Enable */ |
| #define COH901318_CX_CTRL_TC_ENABLE (0x00001000) |
| #define COH901318_CX_CTRL_TC_DISABLE (0x00000000) |
| /* Transfer Count Value 0 - 4095 */ |
| #define COH901318_CX_CTRL_TC_VALUE_MASK (0x00000FFF) |
| /* Burst count */ |
| #define COH901318_CX_CTRL_BURST_COUNT_MASK (0x0000E000) |
| #define COH901318_CX_CTRL_BURST_COUNT_64_BYTES (0x7 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_48_BYTES (0x6 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_32_BYTES (0x5 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_16_BYTES (0x4 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_8_BYTES (0x3 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_4_BYTES (0x2 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_2_BYTES (0x1 << 13) |
| #define COH901318_CX_CTRL_BURST_COUNT_1_BYTE (0x0 << 13) |
| /* Source bus size */ |
| #define COH901318_CX_CTRL_SRC_BUS_SIZE_MASK (0x00030000) |
| #define COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS (0x2 << 16) |
| #define COH901318_CX_CTRL_SRC_BUS_SIZE_16_BITS (0x1 << 16) |
| #define COH901318_CX_CTRL_SRC_BUS_SIZE_8_BITS (0x0 << 16) |
| /* Source address increment */ |
| #define COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE (0x00040000) |
| #define COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE (0x00000000) |
| /* Destination Bus Size */ |
| #define COH901318_CX_CTRL_DST_BUS_SIZE_MASK (0x00180000) |
| #define COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS (0x2 << 19) |
| #define COH901318_CX_CTRL_DST_BUS_SIZE_16_BITS (0x1 << 19) |
| #define COH901318_CX_CTRL_DST_BUS_SIZE_8_BITS (0x0 << 19) |
| /* Destination address increment */ |
| #define COH901318_CX_CTRL_DST_ADDR_INC_ENABLE (0x00200000) |
| #define COH901318_CX_CTRL_DST_ADDR_INC_DISABLE (0x00000000) |
| /* Master Mode (Master2 is only connected to MSL) */ |
| #define COH901318_CX_CTRL_MASTER_MODE_MASK (0x00C00000) |
| #define COH901318_CX_CTRL_MASTER_MODE_M2R_M1W (0x3 << 22) |
| #define COH901318_CX_CTRL_MASTER_MODE_M1R_M2W (0x2 << 22) |
| #define COH901318_CX_CTRL_MASTER_MODE_M2RW (0x1 << 22) |
| #define COH901318_CX_CTRL_MASTER_MODE_M1RW (0x0 << 22) |
| /* Terminal Count flag to PER enable */ |
| #define COH901318_CX_CTRL_TCP_ENABLE (0x01000000) |
| #define COH901318_CX_CTRL_TCP_DISABLE (0x00000000) |
| /* Terminal Count flags to CPU enable */ |
| #define COH901318_CX_CTRL_TC_IRQ_ENABLE (0x02000000) |
| #define COH901318_CX_CTRL_TC_IRQ_DISABLE (0x00000000) |
| /* Hand shake to peripheral */ |
| #define COH901318_CX_CTRL_HSP_ENABLE (0x04000000) |
| #define COH901318_CX_CTRL_HSP_DISABLE (0x00000000) |
| #define COH901318_CX_CTRL_HSS_ENABLE (0x08000000) |
| #define COH901318_CX_CTRL_HSS_DISABLE (0x00000000) |
| /* DMA mode */ |
| #define COH901318_CX_CTRL_DDMA_MASK (0x30000000) |
| #define COH901318_CX_CTRL_DDMA_LEGACY (0x0 << 28) |
| #define COH901318_CX_CTRL_DDMA_DEMAND_DMA1 (0x1 << 28) |
| #define COH901318_CX_CTRL_DDMA_DEMAND_DMA2 (0x2 << 28) |
| /* Primary Request Data Destination */ |
| #define COH901318_CX_CTRL_PRDD_MASK (0x40000000) |
| #define COH901318_CX_CTRL_PRDD_DEST (0x1 << 30) |
| #define COH901318_CX_CTRL_PRDD_SOURCE (0x0 << 30) |
| |
| /* |
| * CX_SRC_ADDR - Channel Source Address Registers 32bit (R/W) |
| */ |
| #define COH901318_CX_SRC_ADDR (0x0404) |
| #define COH901318_CX_SRC_ADDR_SPACING (0x10) |
| |
| /* |
| * CX_DST_ADDR - Channel Destination Address Registers 32bit R/W |
| */ |
| #define COH901318_CX_DST_ADDR (0x0408) |
| #define COH901318_CX_DST_ADDR_SPACING (0x10) |
| |
| /* |
| * CX_LNK_ADDR - Channel Link Address Registers 32bit (R/W) |
| */ |
| #define COH901318_CX_LNK_ADDR (0x040C) |
| #define COH901318_CX_LNK_ADDR_SPACING (0x10) |
| #define COH901318_CX_LNK_LINK_IMMEDIATE (0x00000001) |
| |
| /** |
| * struct coh901318_params - parameters for DMAC configuration |
| * @config: DMA config register |
| * @ctrl_lli_last: DMA control register for the last lli in the list |
| * @ctrl_lli: DMA control register for an lli |
| * @ctrl_lli_chained: DMA control register for a chained lli |
| */ |
| struct coh901318_params { |
| u32 config; |
| u32 ctrl_lli_last; |
| u32 ctrl_lli; |
| u32 ctrl_lli_chained; |
| }; |
| |
| /** |
| * struct coh_dma_channel - dma channel base |
| * @name: ascii name of dma channel |
| * @number: channel id number |
| * @desc_nbr_max: number of preallocated descriptors |
| * @priority_high: prio of channel, 0 low otherwise high. |
| * @param: configuration parameters |
| */ |
| struct coh_dma_channel { |
| const char name[32]; |
| const int number; |
| const int desc_nbr_max; |
| const int priority_high; |
| const struct coh901318_params param; |
| }; |
| |
| /** |
| * struct powersave - DMA power save structure |
| * @lock: lock protecting data in this struct |
| * @started_channels: bit mask indicating active dma channels |
| */ |
| struct powersave { |
| spinlock_t lock; |
| u64 started_channels; |
| }; |
| |
| /* points out all dma slave channels. |
| * Syntax is [A1, B1, A2, B2, .... ,-1,-1] |
| * Select all channels from A to B, end of list is marked with -1,-1 |
| */ |
| static int dma_slave_channels[] = { |
| U300_DMA_MSL_TX_0, U300_DMA_SPI_RX, |
| U300_DMA_UART1_TX, U300_DMA_UART1_RX, -1, -1}; |
| |
| /* points out all dma memcpy channels. */ |
| static int dma_memcpy_channels[] = { |
| U300_DMA_GENERAL_PURPOSE_0, U300_DMA_GENERAL_PURPOSE_8, -1, -1}; |
| |
| #define flags_memcpy_config (COH901318_CX_CFG_CH_DISABLE | \ |
| COH901318_CX_CFG_RM_MEMORY_TO_MEMORY | \ |
| COH901318_CX_CFG_LCR_DISABLE | \ |
| COH901318_CX_CFG_TC_IRQ_ENABLE | \ |
| COH901318_CX_CFG_BE_IRQ_ENABLE) |
| #define flags_memcpy_lli_chained (COH901318_CX_CTRL_TC_ENABLE | \ |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | \ |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | \ |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | \ |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | \ |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | \ |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | \ |
| COH901318_CX_CTRL_TCP_DISABLE | \ |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | \ |
| COH901318_CX_CTRL_HSP_DISABLE | \ |
| COH901318_CX_CTRL_HSS_DISABLE | \ |
| COH901318_CX_CTRL_DDMA_LEGACY | \ |
| COH901318_CX_CTRL_PRDD_SOURCE) |
| #define flags_memcpy_lli (COH901318_CX_CTRL_TC_ENABLE | \ |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | \ |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | \ |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | \ |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | \ |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | \ |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | \ |
| COH901318_CX_CTRL_TCP_DISABLE | \ |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | \ |
| COH901318_CX_CTRL_HSP_DISABLE | \ |
| COH901318_CX_CTRL_HSS_DISABLE | \ |
| COH901318_CX_CTRL_DDMA_LEGACY | \ |
| COH901318_CX_CTRL_PRDD_SOURCE) |
| #define flags_memcpy_lli_last (COH901318_CX_CTRL_TC_ENABLE | \ |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | \ |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | \ |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | \ |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | \ |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | \ |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | \ |
| COH901318_CX_CTRL_TCP_DISABLE | \ |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | \ |
| COH901318_CX_CTRL_HSP_DISABLE | \ |
| COH901318_CX_CTRL_HSS_DISABLE | \ |
| COH901318_CX_CTRL_DDMA_LEGACY | \ |
| COH901318_CX_CTRL_PRDD_SOURCE) |
| |
| static const struct coh_dma_channel chan_config[U300_DMA_CHANNELS] = { |
| { |
| .number = U300_DMA_MSL_TX_0, |
| .name = "MSL TX 0", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_MSL_TX_1, |
| .name = "MSL TX 1", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| }, |
| { |
| .number = U300_DMA_MSL_TX_2, |
| .name = "MSL TX 2", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .desc_nbr_max = 10, |
| }, |
| { |
| .number = U300_DMA_MSL_TX_3, |
| .name = "MSL TX 3", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| }, |
| { |
| .number = U300_DMA_MSL_TX_4, |
| .name = "MSL TX 4", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1R_M2W | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| }, |
| { |
| .number = U300_DMA_MSL_TX_5, |
| .name = "MSL TX 5", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_MSL_TX_6, |
| .name = "MSL TX 6", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_0, |
| .name = "MSL RX 0", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_1, |
| .name = "MSL RX 1", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_2, |
| .name = "MSL RX 2", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_3, |
| .name = "MSL RX 3", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_4, |
| .name = "MSL RX 4", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_5, |
| .name = "MSL RX 5", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_32_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M2R_M1W | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_DEMAND_DMA1 | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_MSL_RX_6, |
| .name = "MSL RX 6", |
| .priority_high = 0, |
| }, |
| /* |
| * Don't set up device address, burst count or size of src |
| * or dst bus for this peripheral - handled by PrimeCell |
| * DMA extension. |
| */ |
| { |
| .number = U300_DMA_MMCSD_RX_TX, |
| .name = "MMCSD RX TX", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| |
| }, |
| { |
| .number = U300_DMA_MSPRO_TX, |
| .name = "MSPRO TX", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_MSPRO_RX, |
| .name = "MSPRO RX", |
| .priority_high = 0, |
| }, |
| /* |
| * Don't set up device address, burst count or size of src |
| * or dst bus for this peripheral - handled by PrimeCell |
| * DMA extension. |
| */ |
| { |
| .number = U300_DMA_UART0_TX, |
| .name = "UART0 TX", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| }, |
| { |
| .number = U300_DMA_UART0_RX, |
| .name = "UART0 RX", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| }, |
| { |
| .number = U300_DMA_APEX_TX, |
| .name = "APEX TX", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_APEX_RX, |
| .name = "APEX RX", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_PCM_I2S0_TX, |
| .name = "PCM I2S0 TX", |
| .priority_high = 1, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| }, |
| { |
| .number = U300_DMA_PCM_I2S0_RX, |
| .name = "PCM I2S0 RX", |
| .priority_high = 1, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_PCM_I2S1_TX, |
| .name = "PCM I2S1 TX", |
| .priority_high = 1, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_SOURCE, |
| }, |
| { |
| .number = U300_DMA_PCM_I2S1_RX, |
| .name = "PCM I2S1 RX", |
| .priority_high = 1, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_DEST, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_BURST_COUNT_16_BYTES | |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_SRC_ADDR_INC_DISABLE | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_ENABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY | |
| COH901318_CX_CTRL_PRDD_DEST, |
| }, |
| { |
| .number = U300_DMA_XGAM_CDI, |
| .name = "XGAM CDI", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_XGAM_PDI, |
| .name = "XGAM PDI", |
| .priority_high = 0, |
| }, |
| /* |
| * Don't set up device address, burst count or size of src |
| * or dst bus for this peripheral - handled by PrimeCell |
| * DMA extension. |
| */ |
| { |
| .number = U300_DMA_SPI_TX, |
| .name = "SPI TX", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| }, |
| { |
| .number = U300_DMA_SPI_RX, |
| .name = "SPI RX", |
| .priority_high = 0, |
| .param.config = COH901318_CX_CFG_CH_DISABLE | |
| COH901318_CX_CFG_LCR_DISABLE | |
| COH901318_CX_CFG_TC_IRQ_ENABLE | |
| COH901318_CX_CFG_BE_IRQ_ENABLE, |
| .param.ctrl_lli_chained = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_DISABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| .param.ctrl_lli_last = 0 | |
| COH901318_CX_CTRL_TC_ENABLE | |
| COH901318_CX_CTRL_MASTER_MODE_M1RW | |
| COH901318_CX_CTRL_TCP_DISABLE | |
| COH901318_CX_CTRL_TC_IRQ_ENABLE | |
| COH901318_CX_CTRL_HSP_ENABLE | |
| COH901318_CX_CTRL_HSS_DISABLE | |
| COH901318_CX_CTRL_DDMA_LEGACY, |
| |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_0, |
| .name = "GENERAL 00", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_1, |
| .name = "GENERAL 01", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_2, |
| .name = "GENERAL 02", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_3, |
| .name = "GENERAL 03", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_4, |
| .name = "GENERAL 04", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_5, |
| .name = "GENERAL 05", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_6, |
| .name = "GENERAL 06", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_7, |
| .name = "GENERAL 07", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_GENERAL_PURPOSE_8, |
| .name = "GENERAL 08", |
| .priority_high = 0, |
| |
| .param.config = flags_memcpy_config, |
| .param.ctrl_lli_chained = flags_memcpy_lli_chained, |
| .param.ctrl_lli = flags_memcpy_lli, |
| .param.ctrl_lli_last = flags_memcpy_lli_last, |
| }, |
| { |
| .number = U300_DMA_UART1_TX, |
| .name = "UART1 TX", |
| .priority_high = 0, |
| }, |
| { |
| .number = U300_DMA_UART1_RX, |
| .name = "UART1 RX", |
| .priority_high = 0, |
| } |
| }; |
| |
| #define COHC_2_DEV(cohc) (&cohc->chan.dev->device) |
| |
| #ifdef VERBOSE_DEBUG |
| #define COH_DBG(x) ({ if (1) x; 0; }) |
| #else |
| #define COH_DBG(x) ({ if (0) x; 0; }) |
| #endif |
| |
| struct coh901318_desc { |
| struct dma_async_tx_descriptor desc; |
| struct list_head node; |
| struct scatterlist *sg; |
| unsigned int sg_len; |
| struct coh901318_lli *lli; |
| enum dma_transfer_direction dir; |
| unsigned long flags; |
| u32 head_config; |
| u32 head_ctrl; |
| }; |
| |
| struct coh901318_base { |
| struct device *dev; |
| void __iomem *virtbase; |
| unsigned int irq; |
| struct coh901318_pool pool; |
| struct powersave pm; |
| struct dma_device dma_slave; |
| struct dma_device dma_memcpy; |
| struct coh901318_chan *chans; |
| }; |
| |
| struct coh901318_chan { |
| spinlock_t lock; |
| int allocated; |
| int id; |
| int stopped; |
| |
| struct work_struct free_work; |
| struct dma_chan chan; |
| |
| struct tasklet_struct tasklet; |
| |
| struct list_head active; |
| struct list_head queue; |
| struct list_head free; |
| |
| unsigned long nbr_active_done; |
| unsigned long busy; |
| |
| struct dma_slave_config config; |
| u32 addr; |
| u32 ctrl; |
| |
| struct coh901318_base *base; |
| }; |
| |
| static void coh901318_list_print(struct coh901318_chan *cohc, |
| struct coh901318_lli *lli) |
| { |
| struct coh901318_lli *l = lli; |
| int i = 0; |
| |
| while (l) { |
| dev_vdbg(COHC_2_DEV(cohc), "i %d, lli %p, ctrl 0x%x, src %pad" |
| ", dst %pad, link %pad virt_link_addr 0x%p\n", |
| i, l, l->control, &l->src_addr, &l->dst_addr, |
| &l->link_addr, l->virt_link_addr); |
| i++; |
| l = l->virt_link_addr; |
| } |
| } |
| |
| #ifdef CONFIG_DEBUG_FS |
| |
| #define COH901318_DEBUGFS_ASSIGN(x, y) (x = y) |
| |
| static struct coh901318_base *debugfs_dma_base; |
| static struct dentry *dma_dentry; |
| |
| static ssize_t coh901318_debugfs_read(struct file *file, char __user *buf, |
| size_t count, loff_t *f_pos) |
| { |
| u64 started_channels = debugfs_dma_base->pm.started_channels; |
| int pool_count = debugfs_dma_base->pool.debugfs_pool_counter; |
| char *dev_buf; |
| char *tmp; |
| int ret; |
| int i; |
| |
| dev_buf = kmalloc(4*1024, GFP_KERNEL); |
| if (dev_buf == NULL) |
| return -ENOMEM; |
| tmp = dev_buf; |
| |
| tmp += sprintf(tmp, "DMA -- enabled dma channels\n"); |
| |
| for (i = 0; i < U300_DMA_CHANNELS; i++) { |
| if (started_channels & (1ULL << i)) |
| tmp += sprintf(tmp, "channel %d\n", i); |
| } |
| |
| tmp += sprintf(tmp, "Pool alloc nbr %d\n", pool_count); |
| |
| ret = simple_read_from_buffer(buf, count, f_pos, dev_buf, |
| tmp - dev_buf); |
| kfree(dev_buf); |
| return ret; |
| } |
| |
| static const struct file_operations coh901318_debugfs_status_operations = { |
| .open = simple_open, |
| .read = coh901318_debugfs_read, |
| .llseek = default_llseek, |
| }; |
| |
| |
| static int __init init_coh901318_debugfs(void) |
| { |
| |
| dma_dentry = debugfs_create_dir("dma", NULL); |
| |
| debugfs_create_file("status", S_IFREG | S_IRUGO, dma_dentry, NULL, |
| &coh901318_debugfs_status_operations); |
| return 0; |
| } |
| |
| static void __exit exit_coh901318_debugfs(void) |
| { |
| debugfs_remove_recursive(dma_dentry); |
| } |
| |
| module_init(init_coh901318_debugfs); |
| module_exit(exit_coh901318_debugfs); |
| #else |
| |
| #define COH901318_DEBUGFS_ASSIGN(x, y) |
| |
| #endif /* CONFIG_DEBUG_FS */ |
| |
| static inline struct coh901318_chan *to_coh901318_chan(struct dma_chan *chan) |
| { |
| return container_of(chan, struct coh901318_chan, chan); |
| } |
| |
| static int coh901318_dma_set_runtimeconfig(struct dma_chan *chan, |
| struct dma_slave_config *config, |
| enum dma_transfer_direction direction); |
| |
| static inline const struct coh901318_params * |
| cohc_chan_param(struct coh901318_chan *cohc) |
| { |
| return &chan_config[cohc->id].param; |
| } |
| |
| static inline const struct coh_dma_channel * |
| cohc_chan_conf(struct coh901318_chan *cohc) |
| { |
| return &chan_config[cohc->id]; |
| } |
| |
| static void enable_powersave(struct coh901318_chan *cohc) |
| { |
| unsigned long flags; |
| struct powersave *pm = &cohc->base->pm; |
| |
| spin_lock_irqsave(&pm->lock, flags); |
| |
| pm->started_channels &= ~(1ULL << cohc->id); |
| |
| spin_unlock_irqrestore(&pm->lock, flags); |
| } |
| static void disable_powersave(struct coh901318_chan *cohc) |
| { |
| unsigned long flags; |
| struct powersave *pm = &cohc->base->pm; |
| |
| spin_lock_irqsave(&pm->lock, flags); |
| |
| pm->started_channels |= (1ULL << cohc->id); |
| |
| spin_unlock_irqrestore(&pm->lock, flags); |
| } |
| |
| static inline int coh901318_set_ctrl(struct coh901318_chan *cohc, u32 control) |
| { |
| int channel = cohc->id; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| writel(control, |
| virtbase + COH901318_CX_CTRL + |
| COH901318_CX_CTRL_SPACING * channel); |
| return 0; |
| } |
| |
| static inline int coh901318_set_conf(struct coh901318_chan *cohc, u32 conf) |
| { |
| int channel = cohc->id; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| writel(conf, |
| virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING*channel); |
| return 0; |
| } |
| |
| |
| static int coh901318_start(struct coh901318_chan *cohc) |
| { |
| u32 val; |
| int channel = cohc->id; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| disable_powersave(cohc); |
| |
| val = readl(virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING * channel); |
| |
| /* Enable channel */ |
| val |= COH901318_CX_CFG_CH_ENABLE; |
| writel(val, virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING * channel); |
| |
| return 0; |
| } |
| |
| static int coh901318_prep_linked_list(struct coh901318_chan *cohc, |
| struct coh901318_lli *lli) |
| { |
| int channel = cohc->id; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| BUG_ON(readl(virtbase + COH901318_CX_STAT + |
| COH901318_CX_STAT_SPACING*channel) & |
| COH901318_CX_STAT_ACTIVE); |
| |
| writel(lli->src_addr, |
| virtbase + COH901318_CX_SRC_ADDR + |
| COH901318_CX_SRC_ADDR_SPACING * channel); |
| |
| writel(lli->dst_addr, virtbase + |
| COH901318_CX_DST_ADDR + |
| COH901318_CX_DST_ADDR_SPACING * channel); |
| |
| writel(lli->link_addr, virtbase + COH901318_CX_LNK_ADDR + |
| COH901318_CX_LNK_ADDR_SPACING * channel); |
| |
| writel(lli->control, virtbase + COH901318_CX_CTRL + |
| COH901318_CX_CTRL_SPACING * channel); |
| |
| return 0; |
| } |
| |
| static struct coh901318_desc * |
| coh901318_desc_get(struct coh901318_chan *cohc) |
| { |
| struct coh901318_desc *desc; |
| |
| if (list_empty(&cohc->free)) { |
| /* alloc new desc because we're out of used ones |
| * TODO: alloc a pile of descs instead of just one, |
| * avoid many small allocations. |
| */ |
| desc = kzalloc(sizeof(struct coh901318_desc), GFP_NOWAIT); |
| if (desc == NULL) |
| goto out; |
| INIT_LIST_HEAD(&desc->node); |
| dma_async_tx_descriptor_init(&desc->desc, &cohc->chan); |
| } else { |
| /* Reuse an old desc. */ |
| desc = list_first_entry(&cohc->free, |
| struct coh901318_desc, |
| node); |
| list_del(&desc->node); |
| /* Initialize it a bit so it's not insane */ |
| desc->sg = NULL; |
| desc->sg_len = 0; |
| desc->desc.callback = NULL; |
| desc->desc.callback_param = NULL; |
| } |
| |
| out: |
| return desc; |
| } |
| |
| static void |
| coh901318_desc_free(struct coh901318_chan *cohc, struct coh901318_desc *cohd) |
| { |
| list_add_tail(&cohd->node, &cohc->free); |
| } |
| |
| /* call with irq lock held */ |
| static void |
| coh901318_desc_submit(struct coh901318_chan *cohc, struct coh901318_desc *desc) |
| { |
| list_add_tail(&desc->node, &cohc->active); |
| } |
| |
| static struct coh901318_desc * |
| coh901318_first_active_get(struct coh901318_chan *cohc) |
| { |
| return list_first_entry_or_null(&cohc->active, struct coh901318_desc, |
| node); |
| } |
| |
| static void |
| coh901318_desc_remove(struct coh901318_desc *cohd) |
| { |
| list_del(&cohd->node); |
| } |
| |
| static void |
| coh901318_desc_queue(struct coh901318_chan *cohc, struct coh901318_desc *desc) |
| { |
| list_add_tail(&desc->node, &cohc->queue); |
| } |
| |
| static struct coh901318_desc * |
| coh901318_first_queued(struct coh901318_chan *cohc) |
| { |
| return list_first_entry_or_null(&cohc->queue, struct coh901318_desc, |
| node); |
| } |
| |
| static inline u32 coh901318_get_bytes_in_lli(struct coh901318_lli *in_lli) |
| { |
| struct coh901318_lli *lli = in_lli; |
| u32 bytes = 0; |
| |
| while (lli) { |
| bytes += lli->control & COH901318_CX_CTRL_TC_VALUE_MASK; |
| lli = lli->virt_link_addr; |
| } |
| return bytes; |
| } |
| |
| /* |
| * Get the number of bytes left to transfer on this channel, |
| * it is unwise to call this before stopping the channel for |
| * absolute measures, but for a rough guess you can still call |
| * it. |
| */ |
| static u32 coh901318_get_bytes_left(struct dma_chan *chan) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| struct coh901318_desc *cohd; |
| struct list_head *pos; |
| unsigned long flags; |
| u32 left = 0; |
| int i = 0; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* |
| * If there are many queued jobs, we iterate and add the |
| * size of them all. We take a special look on the first |
| * job though, since it is probably active. |
| */ |
| list_for_each(pos, &cohc->active) { |
| /* |
| * The first job in the list will be working on the |
| * hardware. The job can be stopped but still active, |
| * so that the transfer counter is somewhere inside |
| * the buffer. |
| */ |
| cohd = list_entry(pos, struct coh901318_desc, node); |
| |
| if (i == 0) { |
| struct coh901318_lli *lli; |
| dma_addr_t ladd; |
| |
| /* Read current transfer count value */ |
| left = readl(cohc->base->virtbase + |
| COH901318_CX_CTRL + |
| COH901318_CX_CTRL_SPACING * cohc->id) & |
| COH901318_CX_CTRL_TC_VALUE_MASK; |
| |
| /* See if the transfer is linked... */ |
| ladd = readl(cohc->base->virtbase + |
| COH901318_CX_LNK_ADDR + |
| COH901318_CX_LNK_ADDR_SPACING * |
| cohc->id) & |
| ~COH901318_CX_LNK_LINK_IMMEDIATE; |
| /* Single transaction */ |
| if (!ladd) |
| continue; |
| |
| /* |
| * Linked transaction, follow the lli, find the |
| * currently processing lli, and proceed to the next |
| */ |
| lli = cohd->lli; |
| while (lli && lli->link_addr != ladd) |
| lli = lli->virt_link_addr; |
| |
| if (lli) |
| lli = lli->virt_link_addr; |
| |
| /* |
| * Follow remaining lli links around to count the total |
| * number of bytes left |
| */ |
| left += coh901318_get_bytes_in_lli(lli); |
| } else { |
| left += coh901318_get_bytes_in_lli(cohd->lli); |
| } |
| i++; |
| } |
| |
| /* Also count bytes in the queued jobs */ |
| list_for_each(pos, &cohc->queue) { |
| cohd = list_entry(pos, struct coh901318_desc, node); |
| left += coh901318_get_bytes_in_lli(cohd->lli); |
| } |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| return left; |
| } |
| |
| /* |
| * Pauses a transfer without losing data. Enables power save. |
| * Use this function in conjunction with coh901318_resume. |
| */ |
| static int coh901318_pause(struct dma_chan *chan) |
| { |
| u32 val; |
| unsigned long flags; |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| int channel = cohc->id; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* Disable channel in HW */ |
| val = readl(virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING * channel); |
| |
| /* Stopping infinite transfer */ |
| if ((val & COH901318_CX_CTRL_TC_ENABLE) == 0 && |
| (val & COH901318_CX_CFG_CH_ENABLE)) |
| cohc->stopped = 1; |
| |
| |
| val &= ~COH901318_CX_CFG_CH_ENABLE; |
| /* Enable twice, HW bug work around */ |
| writel(val, virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING * channel); |
| writel(val, virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING * channel); |
| |
| /* Spin-wait for it to actually go inactive */ |
| while (readl(virtbase + COH901318_CX_STAT+COH901318_CX_STAT_SPACING * |
| channel) & COH901318_CX_STAT_ACTIVE) |
| cpu_relax(); |
| |
| /* Check if we stopped an active job */ |
| if ((readl(virtbase + COH901318_CX_CTRL+COH901318_CX_CTRL_SPACING * |
| channel) & COH901318_CX_CTRL_TC_VALUE_MASK) > 0) |
| cohc->stopped = 1; |
| |
| enable_powersave(cohc); |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| return 0; |
| } |
| |
| /* Resumes a transfer that has been stopped via 300_dma_stop(..). |
| Power save is handled. |
| */ |
| static int coh901318_resume(struct dma_chan *chan) |
| { |
| u32 val; |
| unsigned long flags; |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| int channel = cohc->id; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| disable_powersave(cohc); |
| |
| if (cohc->stopped) { |
| /* Enable channel in HW */ |
| val = readl(cohc->base->virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING * channel); |
| |
| val |= COH901318_CX_CFG_CH_ENABLE; |
| |
| writel(val, cohc->base->virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING*channel); |
| |
| cohc->stopped = 0; |
| } |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| return 0; |
| } |
| |
| bool coh901318_filter_id(struct dma_chan *chan, void *chan_id) |
| { |
| unsigned long ch_nr = (unsigned long) chan_id; |
| |
| if (ch_nr == to_coh901318_chan(chan)->id) |
| return true; |
| |
| return false; |
| } |
| EXPORT_SYMBOL(coh901318_filter_id); |
| |
| struct coh901318_filter_args { |
| struct coh901318_base *base; |
| unsigned int ch_nr; |
| }; |
| |
| static bool coh901318_filter_base_and_id(struct dma_chan *chan, void *data) |
| { |
| struct coh901318_filter_args *args = data; |
| |
| if (&args->base->dma_slave == chan->device && |
| args->ch_nr == to_coh901318_chan(chan)->id) |
| return true; |
| |
| return false; |
| } |
| |
| static struct dma_chan *coh901318_xlate(struct of_phandle_args *dma_spec, |
| struct of_dma *ofdma) |
| { |
| struct coh901318_filter_args args = { |
| .base = ofdma->of_dma_data, |
| .ch_nr = dma_spec->args[0], |
| }; |
| dma_cap_mask_t cap; |
| dma_cap_zero(cap); |
| dma_cap_set(DMA_SLAVE, cap); |
| |
| return dma_request_channel(cap, coh901318_filter_base_and_id, &args); |
| } |
| /* |
| * DMA channel allocation |
| */ |
| static int coh901318_config(struct coh901318_chan *cohc, |
| struct coh901318_params *param) |
| { |
| const struct coh901318_params *p; |
| int channel = cohc->id; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| if (param) |
| p = param; |
| else |
| p = cohc_chan_param(cohc); |
| |
| /* Clear any pending BE or TC interrupt */ |
| if (channel < 32) { |
| writel(1 << channel, virtbase + COH901318_BE_INT_CLEAR1); |
| writel(1 << channel, virtbase + COH901318_TC_INT_CLEAR1); |
| } else { |
| writel(1 << (channel - 32), virtbase + |
| COH901318_BE_INT_CLEAR2); |
| writel(1 << (channel - 32), virtbase + |
| COH901318_TC_INT_CLEAR2); |
| } |
| |
| coh901318_set_conf(cohc, p->config); |
| coh901318_set_ctrl(cohc, p->ctrl_lli_last); |
| |
| return 0; |
| } |
| |
| /* must lock when calling this function |
| * start queued jobs, if any |
| * TODO: start all queued jobs in one go |
| * |
| * Returns descriptor if queued job is started otherwise NULL. |
| * If the queue is empty NULL is returned. |
| */ |
| static struct coh901318_desc *coh901318_queue_start(struct coh901318_chan *cohc) |
| { |
| struct coh901318_desc *cohd; |
| |
| /* |
| * start queued jobs, if any |
| * TODO: transmit all queued jobs in one go |
| */ |
| cohd = coh901318_first_queued(cohc); |
| |
| if (cohd != NULL) { |
| /* Remove from queue */ |
| coh901318_desc_remove(cohd); |
| /* initiate DMA job */ |
| cohc->busy = 1; |
| |
| coh901318_desc_submit(cohc, cohd); |
| |
| /* Program the transaction head */ |
| coh901318_set_conf(cohc, cohd->head_config); |
| coh901318_set_ctrl(cohc, cohd->head_ctrl); |
| coh901318_prep_linked_list(cohc, cohd->lli); |
| |
| /* start dma job on this channel */ |
| coh901318_start(cohc); |
| |
| } |
| |
| return cohd; |
| } |
| |
| /* |
| * This tasklet is called from the interrupt handler to |
| * handle each descriptor (DMA job) that is sent to a channel. |
| */ |
| static void dma_tasklet(unsigned long data) |
| { |
| struct coh901318_chan *cohc = (struct coh901318_chan *) data; |
| struct coh901318_desc *cohd_fin; |
| unsigned long flags; |
| struct dmaengine_desc_callback cb; |
| |
| dev_vdbg(COHC_2_DEV(cohc), "[%s] chan_id %d" |
| " nbr_active_done %ld\n", __func__, |
| cohc->id, cohc->nbr_active_done); |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* get first active descriptor entry from list */ |
| cohd_fin = coh901318_first_active_get(cohc); |
| |
| if (cohd_fin == NULL) |
| goto err; |
| |
| /* locate callback to client */ |
| dmaengine_desc_get_callback(&cohd_fin->desc, &cb); |
| |
| /* sign this job as completed on the channel */ |
| dma_cookie_complete(&cohd_fin->desc); |
| |
| /* release the lli allocation and remove the descriptor */ |
| coh901318_lli_free(&cohc->base->pool, &cohd_fin->lli); |
| |
| /* return desc to free-list */ |
| coh901318_desc_remove(cohd_fin); |
| coh901318_desc_free(cohc, cohd_fin); |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| /* Call the callback when we're done */ |
| dmaengine_desc_callback_invoke(&cb, NULL); |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* |
| * If another interrupt fired while the tasklet was scheduling, |
| * we don't get called twice, so we have this number of active |
| * counter that keep track of the number of IRQs expected to |
| * be handled for this channel. If there happen to be more than |
| * one IRQ to be ack:ed, we simply schedule this tasklet again. |
| */ |
| cohc->nbr_active_done--; |
| if (cohc->nbr_active_done) { |
| dev_dbg(COHC_2_DEV(cohc), "scheduling tasklet again, new IRQs " |
| "came in while we were scheduling this tasklet\n"); |
| if (cohc_chan_conf(cohc)->priority_high) |
| tasklet_hi_schedule(&cohc->tasklet); |
| else |
| tasklet_schedule(&cohc->tasklet); |
| } |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| return; |
| |
| err: |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| dev_err(COHC_2_DEV(cohc), "[%s] No active dma desc\n", __func__); |
| } |
| |
| |
| /* called from interrupt context */ |
| static void dma_tc_handle(struct coh901318_chan *cohc) |
| { |
| /* |
| * If the channel is not allocated, then we shouldn't have |
| * any TC interrupts on it. |
| */ |
| if (!cohc->allocated) { |
| dev_err(COHC_2_DEV(cohc), "spurious interrupt from " |
| "unallocated channel\n"); |
| return; |
| } |
| |
| /* |
| * When we reach this point, at least one queue item |
| * should have been moved over from cohc->queue to |
| * cohc->active and run to completion, that is why we're |
| * getting a terminal count interrupt is it not? |
| * If you get this BUG() the most probable cause is that |
| * the individual nodes in the lli chain have IRQ enabled, |
| * so check your platform config for lli chain ctrl. |
| */ |
| BUG_ON(list_empty(&cohc->active)); |
| |
| cohc->nbr_active_done++; |
| |
| /* |
| * This attempt to take a job from cohc->queue, put it |
| * into cohc->active and start it. |
| */ |
| if (coh901318_queue_start(cohc) == NULL) |
| cohc->busy = 0; |
| |
| /* |
| * This tasklet will remove items from cohc->active |
| * and thus terminates them. |
| */ |
| if (cohc_chan_conf(cohc)->priority_high) |
| tasklet_hi_schedule(&cohc->tasklet); |
| else |
| tasklet_schedule(&cohc->tasklet); |
| } |
| |
| |
| static irqreturn_t dma_irq_handler(int irq, void *dev_id) |
| { |
| u32 status1; |
| u32 status2; |
| int i; |
| int ch; |
| struct coh901318_base *base = dev_id; |
| struct coh901318_chan *cohc; |
| void __iomem *virtbase = base->virtbase; |
| |
| status1 = readl(virtbase + COH901318_INT_STATUS1); |
| status2 = readl(virtbase + COH901318_INT_STATUS2); |
| |
| if (unlikely(status1 == 0 && status2 == 0)) { |
| dev_warn(base->dev, "spurious DMA IRQ from no channel!\n"); |
| return IRQ_HANDLED; |
| } |
| |
| /* TODO: consider handle IRQ in tasklet here to |
| * minimize interrupt latency */ |
| |
| /* Check the first 32 DMA channels for IRQ */ |
| while (status1) { |
| /* Find first bit set, return as a number. */ |
| i = ffs(status1) - 1; |
| ch = i; |
| |
| cohc = &base->chans[ch]; |
| spin_lock(&cohc->lock); |
| |
| /* Mask off this bit */ |
| status1 &= ~(1 << i); |
| /* Check the individual channel bits */ |
| if (test_bit(i, virtbase + COH901318_BE_INT_STATUS1)) { |
| dev_crit(COHC_2_DEV(cohc), |
| "DMA bus error on channel %d!\n", ch); |
| BUG_ON(1); |
| /* Clear BE interrupt */ |
| __set_bit(i, virtbase + COH901318_BE_INT_CLEAR1); |
| } else { |
| /* Caused by TC, really? */ |
| if (unlikely(!test_bit(i, virtbase + |
| COH901318_TC_INT_STATUS1))) { |
| dev_warn(COHC_2_DEV(cohc), |
| "ignoring interrupt not caused by terminal count on channel %d\n", ch); |
| /* Clear TC interrupt */ |
| BUG_ON(1); |
| __set_bit(i, virtbase + COH901318_TC_INT_CLEAR1); |
| } else { |
| /* Enable powersave if transfer has finished */ |
| if (!(readl(virtbase + COH901318_CX_STAT + |
| COH901318_CX_STAT_SPACING*ch) & |
| COH901318_CX_STAT_ENABLED)) { |
| enable_powersave(cohc); |
| } |
| |
| /* Must clear TC interrupt before calling |
| * dma_tc_handle |
| * in case tc_handle initiate a new dma job |
| */ |
| __set_bit(i, virtbase + COH901318_TC_INT_CLEAR1); |
| |
| dma_tc_handle(cohc); |
| } |
| } |
| spin_unlock(&cohc->lock); |
| } |
| |
| /* Check the remaining 32 DMA channels for IRQ */ |
| while (status2) { |
| /* Find first bit set, return as a number. */ |
| i = ffs(status2) - 1; |
| ch = i + 32; |
| cohc = &base->chans[ch]; |
| spin_lock(&cohc->lock); |
| |
| /* Mask off this bit */ |
| status2 &= ~(1 << i); |
| /* Check the individual channel bits */ |
| if (test_bit(i, virtbase + COH901318_BE_INT_STATUS2)) { |
| dev_crit(COHC_2_DEV(cohc), |
| "DMA bus error on channel %d!\n", ch); |
| /* Clear BE interrupt */ |
| BUG_ON(1); |
| __set_bit(i, virtbase + COH901318_BE_INT_CLEAR2); |
| } else { |
| /* Caused by TC, really? */ |
| if (unlikely(!test_bit(i, virtbase + |
| COH901318_TC_INT_STATUS2))) { |
| dev_warn(COHC_2_DEV(cohc), |
| "ignoring interrupt not caused by terminal count on channel %d\n", ch); |
| /* Clear TC interrupt */ |
| __set_bit(i, virtbase + COH901318_TC_INT_CLEAR2); |
| BUG_ON(1); |
| } else { |
| /* Enable powersave if transfer has finished */ |
| if (!(readl(virtbase + COH901318_CX_STAT + |
| COH901318_CX_STAT_SPACING*ch) & |
| COH901318_CX_STAT_ENABLED)) { |
| enable_powersave(cohc); |
| } |
| /* Must clear TC interrupt before calling |
| * dma_tc_handle |
| * in case tc_handle initiate a new dma job |
| */ |
| __set_bit(i, virtbase + COH901318_TC_INT_CLEAR2); |
| |
| dma_tc_handle(cohc); |
| } |
| } |
| spin_unlock(&cohc->lock); |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int coh901318_terminate_all(struct dma_chan *chan) |
| { |
| unsigned long flags; |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| struct coh901318_desc *cohd; |
| void __iomem *virtbase = cohc->base->virtbase; |
| |
| /* The remainder of this function terminates the transfer */ |
| coh901318_pause(chan); |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* Clear any pending BE or TC interrupt */ |
| if (cohc->id < 32) { |
| writel(1 << cohc->id, virtbase + COH901318_BE_INT_CLEAR1); |
| writel(1 << cohc->id, virtbase + COH901318_TC_INT_CLEAR1); |
| } else { |
| writel(1 << (cohc->id - 32), virtbase + |
| COH901318_BE_INT_CLEAR2); |
| writel(1 << (cohc->id - 32), virtbase + |
| COH901318_TC_INT_CLEAR2); |
| } |
| |
| enable_powersave(cohc); |
| |
| while ((cohd = coh901318_first_active_get(cohc))) { |
| /* release the lli allocation*/ |
| coh901318_lli_free(&cohc->base->pool, &cohd->lli); |
| |
| /* return desc to free-list */ |
| coh901318_desc_remove(cohd); |
| coh901318_desc_free(cohc, cohd); |
| } |
| |
| while ((cohd = coh901318_first_queued(cohc))) { |
| /* release the lli allocation*/ |
| coh901318_lli_free(&cohc->base->pool, &cohd->lli); |
| |
| /* return desc to free-list */ |
| coh901318_desc_remove(cohd); |
| coh901318_desc_free(cohc, cohd); |
| } |
| |
| |
| cohc->nbr_active_done = 0; |
| cohc->busy = 0; |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| return 0; |
| } |
| |
| static int coh901318_alloc_chan_resources(struct dma_chan *chan) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| unsigned long flags; |
| |
| dev_vdbg(COHC_2_DEV(cohc), "[%s] DMA channel %d\n", |
| __func__, cohc->id); |
| |
| if (chan->client_count > 1) |
| return -EBUSY; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| coh901318_config(cohc, NULL); |
| |
| cohc->allocated = 1; |
| dma_cookie_init(chan); |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| return 1; |
| } |
| |
| static void |
| coh901318_free_chan_resources(struct dma_chan *chan) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| int channel = cohc->id; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* Disable HW */ |
| writel(0x00000000U, cohc->base->virtbase + COH901318_CX_CFG + |
| COH901318_CX_CFG_SPACING*channel); |
| writel(0x00000000U, cohc->base->virtbase + COH901318_CX_CTRL + |
| COH901318_CX_CTRL_SPACING*channel); |
| |
| cohc->allocated = 0; |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| coh901318_terminate_all(chan); |
| } |
| |
| |
| static dma_cookie_t |
| coh901318_tx_submit(struct dma_async_tx_descriptor *tx) |
| { |
| struct coh901318_desc *cohd = container_of(tx, struct coh901318_desc, |
| desc); |
| struct coh901318_chan *cohc = to_coh901318_chan(tx->chan); |
| unsigned long flags; |
| dma_cookie_t cookie; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| cookie = dma_cookie_assign(tx); |
| |
| coh901318_desc_queue(cohc, cohd); |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| |
| return cookie; |
| } |
| |
| static struct dma_async_tx_descriptor * |
| coh901318_prep_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, |
| size_t size, unsigned long flags) |
| { |
| struct coh901318_lli *lli; |
| struct coh901318_desc *cohd; |
| unsigned long flg; |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| int lli_len; |
| u32 ctrl_last = cohc_chan_param(cohc)->ctrl_lli_last; |
| int ret; |
| |
| spin_lock_irqsave(&cohc->lock, flg); |
| |
| dev_vdbg(COHC_2_DEV(cohc), |
| "[%s] channel %d src %pad dest %pad size %zu\n", |
| __func__, cohc->id, &src, &dest, size); |
| |
| if (flags & DMA_PREP_INTERRUPT) |
| /* Trigger interrupt after last lli */ |
| ctrl_last |= COH901318_CX_CTRL_TC_IRQ_ENABLE; |
| |
| lli_len = size >> MAX_DMA_PACKET_SIZE_SHIFT; |
| if ((lli_len << MAX_DMA_PACKET_SIZE_SHIFT) < size) |
| lli_len++; |
| |
| lli = coh901318_lli_alloc(&cohc->base->pool, lli_len); |
| |
| if (lli == NULL) |
| goto err; |
| |
| ret = coh901318_lli_fill_memcpy( |
| &cohc->base->pool, lli, src, size, dest, |
| cohc_chan_param(cohc)->ctrl_lli_chained, |
| ctrl_last); |
| if (ret) |
| goto err; |
| |
| COH_DBG(coh901318_list_print(cohc, lli)); |
| |
| /* Pick a descriptor to handle this transfer */ |
| cohd = coh901318_desc_get(cohc); |
| cohd->lli = lli; |
| cohd->flags = flags; |
| cohd->desc.tx_submit = coh901318_tx_submit; |
| |
| spin_unlock_irqrestore(&cohc->lock, flg); |
| |
| return &cohd->desc; |
| err: |
| spin_unlock_irqrestore(&cohc->lock, flg); |
| return NULL; |
| } |
| |
| static struct dma_async_tx_descriptor * |
| coh901318_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, |
| unsigned int sg_len, enum dma_transfer_direction direction, |
| unsigned long flags, void *context) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| struct coh901318_lli *lli; |
| struct coh901318_desc *cohd; |
| const struct coh901318_params *params; |
| struct scatterlist *sg; |
| int len = 0; |
| int size; |
| int i; |
| u32 ctrl_chained = cohc_chan_param(cohc)->ctrl_lli_chained; |
| u32 ctrl = cohc_chan_param(cohc)->ctrl_lli; |
| u32 ctrl_last = cohc_chan_param(cohc)->ctrl_lli_last; |
| u32 config; |
| unsigned long flg; |
| int ret; |
| |
| if (!sgl) |
| goto out; |
| if (sg_dma_len(sgl) == 0) |
| goto out; |
| |
| spin_lock_irqsave(&cohc->lock, flg); |
| |
| dev_vdbg(COHC_2_DEV(cohc), "[%s] sg_len %d dir %d\n", |
| __func__, sg_len, direction); |
| |
| if (flags & DMA_PREP_INTERRUPT) |
| /* Trigger interrupt after last lli */ |
| ctrl_last |= COH901318_CX_CTRL_TC_IRQ_ENABLE; |
| |
| params = cohc_chan_param(cohc); |
| config = params->config; |
| /* |
| * Add runtime-specific control on top, make |
| * sure the bits you set per peripheral channel are |
| * cleared in the default config from the platform. |
| */ |
| ctrl_chained |= cohc->ctrl; |
| ctrl_last |= cohc->ctrl; |
| ctrl |= cohc->ctrl; |
| |
| if (direction == DMA_MEM_TO_DEV) { |
| u32 tx_flags = COH901318_CX_CTRL_PRDD_SOURCE | |
| COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE; |
| |
| config |= COH901318_CX_CFG_RM_MEMORY_TO_PRIMARY; |
| ctrl_chained |= tx_flags; |
| ctrl_last |= tx_flags; |
| ctrl |= tx_flags; |
| } else if (direction == DMA_DEV_TO_MEM) { |
| u32 rx_flags = COH901318_CX_CTRL_PRDD_DEST | |
| COH901318_CX_CTRL_DST_ADDR_INC_ENABLE; |
| |
| config |= COH901318_CX_CFG_RM_PRIMARY_TO_MEMORY; |
| ctrl_chained |= rx_flags; |
| ctrl_last |= rx_flags; |
| ctrl |= rx_flags; |
| } else |
| goto err_direction; |
| |
| /* The dma only supports transmitting packages up to |
| * MAX_DMA_PACKET_SIZE. Calculate to total number of |
| * dma elemts required to send the entire sg list |
| */ |
| for_each_sg(sgl, sg, sg_len, i) { |
| unsigned int factor; |
| size = sg_dma_len(sg); |
| |
| if (size <= MAX_DMA_PACKET_SIZE) { |
| len++; |
| continue; |
| } |
| |
| factor = size >> MAX_DMA_PACKET_SIZE_SHIFT; |
| if ((factor << MAX_DMA_PACKET_SIZE_SHIFT) < size) |
| factor++; |
| |
| len += factor; |
| } |
| |
| pr_debug("Allocate %d lli:s for this transfer\n", len); |
| lli = coh901318_lli_alloc(&cohc->base->pool, len); |
| |
| if (lli == NULL) |
| goto err_dma_alloc; |
| |
| coh901318_dma_set_runtimeconfig(chan, &cohc->config, direction); |
| |
| /* initiate allocated lli list */ |
| ret = coh901318_lli_fill_sg(&cohc->base->pool, lli, sgl, sg_len, |
| cohc->addr, |
| ctrl_chained, |
| ctrl, |
| ctrl_last, |
| direction, COH901318_CX_CTRL_TC_IRQ_ENABLE); |
| if (ret) |
| goto err_lli_fill; |
| |
| |
| COH_DBG(coh901318_list_print(cohc, lli)); |
| |
| /* Pick a descriptor to handle this transfer */ |
| cohd = coh901318_desc_get(cohc); |
| cohd->head_config = config; |
| /* |
| * Set the default head ctrl for the channel to the one from the |
| * lli, things may have changed due to odd buffer alignment |
| * etc. |
| */ |
| cohd->head_ctrl = lli->control; |
| cohd->dir = direction; |
| cohd->flags = flags; |
| cohd->desc.tx_submit = coh901318_tx_submit; |
| cohd->lli = lli; |
| |
| spin_unlock_irqrestore(&cohc->lock, flg); |
| |
| return &cohd->desc; |
| err_lli_fill: |
| err_dma_alloc: |
| err_direction: |
| spin_unlock_irqrestore(&cohc->lock, flg); |
| out: |
| return NULL; |
| } |
| |
| static enum dma_status |
| coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie, |
| struct dma_tx_state *txstate) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| enum dma_status ret; |
| |
| ret = dma_cookie_status(chan, cookie, txstate); |
| if (ret == DMA_COMPLETE || !txstate) |
| return ret; |
| |
| dma_set_residue(txstate, coh901318_get_bytes_left(chan)); |
| |
| if (ret == DMA_IN_PROGRESS && cohc->stopped) |
| ret = DMA_PAUSED; |
| |
| return ret; |
| } |
| |
| static void |
| coh901318_issue_pending(struct dma_chan *chan) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| unsigned long flags; |
| |
| spin_lock_irqsave(&cohc->lock, flags); |
| |
| /* |
| * Busy means that pending jobs are already being processed, |
| * and then there is no point in starting the queue: the |
| * terminal count interrupt on the channel will take the next |
| * job on the queue and execute it anyway. |
| */ |
| if (!cohc->busy) |
| coh901318_queue_start(cohc); |
| |
| spin_unlock_irqrestore(&cohc->lock, flags); |
| } |
| |
| /* |
| * Here we wrap in the runtime dma control interface |
| */ |
| struct burst_table { |
| int burst_8bit; |
| int burst_16bit; |
| int burst_32bit; |
| u32 reg; |
| }; |
| |
| static const struct burst_table burst_sizes[] = { |
| { |
| .burst_8bit = 64, |
| .burst_16bit = 32, |
| .burst_32bit = 16, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_64_BYTES, |
| }, |
| { |
| .burst_8bit = 48, |
| .burst_16bit = 24, |
| .burst_32bit = 12, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_48_BYTES, |
| }, |
| { |
| .burst_8bit = 32, |
| .burst_16bit = 16, |
| .burst_32bit = 8, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_32_BYTES, |
| }, |
| { |
| .burst_8bit = 16, |
| .burst_16bit = 8, |
| .burst_32bit = 4, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_16_BYTES, |
| }, |
| { |
| .burst_8bit = 8, |
| .burst_16bit = 4, |
| .burst_32bit = 2, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_8_BYTES, |
| }, |
| { |
| .burst_8bit = 4, |
| .burst_16bit = 2, |
| .burst_32bit = 1, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_4_BYTES, |
| }, |
| { |
| .burst_8bit = 2, |
| .burst_16bit = 1, |
| .burst_32bit = 0, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_2_BYTES, |
| }, |
| { |
| .burst_8bit = 1, |
| .burst_16bit = 0, |
| .burst_32bit = 0, |
| .reg = COH901318_CX_CTRL_BURST_COUNT_1_BYTE, |
| }, |
| }; |
| |
| static int coh901318_dma_set_runtimeconfig(struct dma_chan *chan, |
| struct dma_slave_config *config, |
| enum dma_transfer_direction direction) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| dma_addr_t addr; |
| enum dma_slave_buswidth addr_width; |
| u32 maxburst; |
| u32 ctrl = 0; |
| int i = 0; |
| |
| /* We only support mem to per or per to mem transfers */ |
| if (direction == DMA_DEV_TO_MEM) { |
| addr = config->src_addr; |
| addr_width = config->src_addr_width; |
| maxburst = config->src_maxburst; |
| } else if (direction == DMA_MEM_TO_DEV) { |
| addr = config->dst_addr; |
| addr_width = config->dst_addr_width; |
| maxburst = config->dst_maxburst; |
| } else { |
| dev_err(COHC_2_DEV(cohc), "illegal channel mode\n"); |
| return -EINVAL; |
| } |
| |
| dev_dbg(COHC_2_DEV(cohc), "configure channel for %d byte transfers\n", |
| addr_width); |
| switch (addr_width) { |
| case DMA_SLAVE_BUSWIDTH_1_BYTE: |
| ctrl |= |
| COH901318_CX_CTRL_SRC_BUS_SIZE_8_BITS | |
| COH901318_CX_CTRL_DST_BUS_SIZE_8_BITS; |
| |
| while (i < ARRAY_SIZE(burst_sizes)) { |
| if (burst_sizes[i].burst_8bit <= maxburst) |
| break; |
| i++; |
| } |
| |
| break; |
| case DMA_SLAVE_BUSWIDTH_2_BYTES: |
| ctrl |= |
| COH901318_CX_CTRL_SRC_BUS_SIZE_16_BITS | |
| COH901318_CX_CTRL_DST_BUS_SIZE_16_BITS; |
| |
| while (i < ARRAY_SIZE(burst_sizes)) { |
| if (burst_sizes[i].burst_16bit <= maxburst) |
| break; |
| i++; |
| } |
| |
| break; |
| case DMA_SLAVE_BUSWIDTH_4_BYTES: |
| /* Direction doesn't matter here, it's 32/32 bits */ |
| ctrl |= |
| COH901318_CX_CTRL_SRC_BUS_SIZE_32_BITS | |
| COH901318_CX_CTRL_DST_BUS_SIZE_32_BITS; |
| |
| while (i < ARRAY_SIZE(burst_sizes)) { |
| if (burst_sizes[i].burst_32bit <= maxburst) |
| break; |
| i++; |
| } |
| |
| break; |
| default: |
| dev_err(COHC_2_DEV(cohc), |
| "bad runtimeconfig: alien address width\n"); |
| return -EINVAL; |
| } |
| |
| ctrl |= burst_sizes[i].reg; |
| dev_dbg(COHC_2_DEV(cohc), |
| "selected burst size %d bytes for address width %d bytes, maxburst %d\n", |
| burst_sizes[i].burst_8bit, addr_width, maxburst); |
| |
| cohc->addr = addr; |
| cohc->ctrl = ctrl; |
| |
| return 0; |
| } |
| |
| static int coh901318_dma_slave_config(struct dma_chan *chan, |
| struct dma_slave_config *config) |
| { |
| struct coh901318_chan *cohc = to_coh901318_chan(chan); |
| |
| memcpy(&cohc->config, config, sizeof(*config)); |
| |
| return 0; |
| } |
| |
| static void coh901318_base_init(struct dma_device *dma, const int *pick_chans, |
| struct coh901318_base *base) |
| { |
| int chans_i; |
| int i = 0; |
| struct coh901318_chan *cohc; |
| |
| INIT_LIST_HEAD(&dma->channels); |
| |
| for (chans_i = 0; pick_chans[chans_i] != -1; chans_i += 2) { |
| for (i = pick_chans[chans_i]; i <= pick_chans[chans_i+1]; i++) { |
| cohc = &base->chans[i]; |
| |
| cohc->base = base; |
| cohc->chan.device = dma; |
| cohc->id = i; |
| |
| /* TODO: do we really need this lock if only one |
| * client is connected to each channel? |
| */ |
| |
| spin_lock_init(&cohc->lock); |
| |
| cohc->nbr_active_done = 0; |
| cohc->busy = 0; |
| INIT_LIST_HEAD(&cohc->free); |
| INIT_LIST_HEAD(&cohc->active); |
| INIT_LIST_HEAD(&cohc->queue); |
| |
| tasklet_init(&cohc->tasklet, dma_tasklet, |
| (unsigned long) cohc); |
| |
| list_add_tail(&cohc->chan.device_node, |
| &dma->channels); |
| } |
| } |
| } |
| |
| static int __init coh901318_probe(struct platform_device *pdev) |
| { |
| int err = 0; |
| struct coh901318_base *base; |
| int irq; |
| struct resource *io; |
| |
| io = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| if (!io) |
| return -ENODEV; |
| |
| /* Map DMA controller registers to virtual memory */ |
| if (devm_request_mem_region(&pdev->dev, |
| io->start, |
| resource_size(io), |
| pdev->dev.driver->name) == NULL) |
| return -ENOMEM; |
| |
| base = devm_kzalloc(&pdev->dev, |
| ALIGN(sizeof(struct coh901318_base), 4) + |
| U300_DMA_CHANNELS * |
| sizeof(struct coh901318_chan), |
| GFP_KERNEL); |
| if (!base) |
| return -ENOMEM; |
| |
| base->chans = ((void *)base) + ALIGN(sizeof(struct coh901318_base), 4); |
| |
| base->virtbase = devm_ioremap(&pdev->dev, io->start, resource_size(io)); |
| if (!base->virtbase) |
| return -ENOMEM; |
| |
| base->dev = &pdev->dev; |
| spin_lock_init(&base->pm.lock); |
| base->pm.started_channels = 0; |
| |
| COH901318_DEBUGFS_ASSIGN(debugfs_dma_base, base); |
| |
| irq = platform_get_irq(pdev, 0); |
| if (irq < 0) |
| return irq; |
| |
| err = devm_request_irq(&pdev->dev, irq, dma_irq_handler, 0, |
| "coh901318", base); |
| if (err) |
| return err; |
| |
| base->irq = irq; |
| |
| err = coh901318_pool_create(&base->pool, &pdev->dev, |
| sizeof(struct coh901318_lli), |
| 32); |
| if (err) |
| return err; |
| |
| /* init channels for device transfers */ |
| coh901318_base_init(&base->dma_slave, dma_slave_channels, |
| base); |
| |
| dma_cap_zero(base->dma_slave.cap_mask); |
| dma_cap_set(DMA_SLAVE, base->dma_slave.cap_mask); |
| |
| base->dma_slave.device_alloc_chan_resources = coh901318_alloc_chan_resources; |
| base->dma_slave.device_free_chan_resources = coh901318_free_chan_resources; |
| base->dma_slave.device_prep_slave_sg = coh901318_prep_slave_sg; |
| base->dma_slave.device_tx_status = coh901318_tx_status; |
| base->dma_slave.device_issue_pending = coh901318_issue_pending; |
| base->dma_slave.device_config = coh901318_dma_slave_config; |
| base->dma_slave.device_pause = coh901318_pause; |
| base->dma_slave.device_resume = coh901318_resume; |
| base->dma_slave.device_terminate_all = coh901318_terminate_all; |
| base->dma_slave.dev = &pdev->dev; |
| |
| err = dma_async_device_register(&base->dma_slave); |
| |
| if (err) |
| goto err_register_slave; |
| |
| /* init channels for memcpy */ |
| coh901318_base_init(&base->dma_memcpy, dma_memcpy_channels, |
| base); |
| |
| dma_cap_zero(base->dma_memcpy.cap_mask); |
| dma_cap_set(DMA_MEMCPY, base->dma_memcpy.cap_mask); |
| |
| base->dma_memcpy.device_alloc_chan_resources = coh901318_alloc_chan_resources; |
| base->dma_memcpy.device_free_chan_resources = coh901318_free_chan_resources; |
| base->dma_memcpy.device_prep_dma_memcpy = coh901318_prep_memcpy; |
| base->dma_memcpy.device_tx_status = coh901318_tx_status; |
| base->dma_memcpy.device_issue_pending = coh901318_issue_pending; |
| base->dma_memcpy.device_config = coh901318_dma_slave_config; |
| base->dma_memcpy.device_pause = coh901318_pause; |
| base->dma_memcpy.device_resume = coh901318_resume; |
| base->dma_memcpy.device_terminate_all = coh901318_terminate_all; |
| base->dma_memcpy.dev = &pdev->dev; |
| /* |
| * This controller can only access address at even 32bit boundaries, |
| * i.e. 2^2 |
| */ |
| base->dma_memcpy.copy_align = DMAENGINE_ALIGN_4_BYTES; |
| err = dma_async_device_register(&base->dma_memcpy); |
| |
| if (err) |
| goto err_register_memcpy; |
| |
| err = of_dma_controller_register(pdev->dev.of_node, coh901318_xlate, |
| base); |
| if (err) |
| goto err_register_of_dma; |
| |
| platform_set_drvdata(pdev, base); |
| dev_info(&pdev->dev, "Initialized COH901318 DMA on virtual base 0x%p\n", |
| base->virtbase); |
| |
| return err; |
| |
| err_register_of_dma: |
| dma_async_device_unregister(&base->dma_memcpy); |
| err_register_memcpy: |
| dma_async_device_unregister(&base->dma_slave); |
| err_register_slave: |
| coh901318_pool_destroy(&base->pool); |
| return err; |
| } |
| static void coh901318_base_remove(struct coh901318_base *base, const int *pick_chans) |
| { |
| int chans_i; |
| int i = 0; |
| struct coh901318_chan *cohc; |
| |
| for (chans_i = 0; pick_chans[chans_i] != -1; chans_i += 2) { |
| for (i = pick_chans[chans_i]; i <= pick_chans[chans_i+1]; i++) { |
| cohc = &base->chans[i]; |
| |
| tasklet_kill(&cohc->tasklet); |
| } |
| } |
| |
| } |
| |
| static int coh901318_remove(struct platform_device *pdev) |
| { |
| struct coh901318_base *base = platform_get_drvdata(pdev); |
| |
| devm_free_irq(&pdev->dev, base->irq, base); |
| |
| coh901318_base_remove(base, dma_slave_channels); |
| coh901318_base_remove(base, dma_memcpy_channels); |
| |
| of_dma_controller_free(pdev->dev.of_node); |
| dma_async_device_unregister(&base->dma_memcpy); |
| dma_async_device_unregister(&base->dma_slave); |
| coh901318_pool_destroy(&base->pool); |
| return 0; |
| } |
| |
| static const struct of_device_id coh901318_dt_match[] = { |
| { .compatible = "stericsson,coh901318" }, |
| {}, |
| }; |
| |
| static struct platform_driver coh901318_driver = { |
| .remove = coh901318_remove, |
| .driver = { |
| .name = "coh901318", |
| .of_match_table = coh901318_dt_match, |
| }, |
| }; |
| |
| static int __init coh901318_init(void) |
| { |
| return platform_driver_probe(&coh901318_driver, coh901318_probe); |
| } |
| subsys_initcall(coh901318_init); |
| |
| static void __exit coh901318_exit(void) |
| { |
| platform_driver_unregister(&coh901318_driver); |
| } |
| module_exit(coh901318_exit); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("Per Friden"); |
