Lines Matching +full:tx +full:- +full:burst +full:- +full:length
1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <linux/dma-mapping.h>
36 #define DMA_TX BIT(8) /* TX channel direction */
44 #define DMA_PCTRL_2W_BURST 0x1 /* 2 word burst length */
45 #define DMA_PCTRL_4W_BURST 0x2 /* 4 word burst length */
46 #define DMA_PCTRL_8W_BURST 0x3 /* 8 word burst length */
47 #define DMA_TX_BURST_SHIFT 4 /* tx burst shift */
48 #define DMA_RX_BURST_SHIFT 2 /* rx burst shift */
66 ltq_dma_w32(ch->nr, LTQ_DMA_CS);
67 ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN);
78 ltq_dma_w32(ch->nr, LTQ_DMA_CS);
79 ltq_dma_w32_mask(1 << ch->nr, 0, LTQ_DMA_IRNEN);
90 ltq_dma_w32(ch->nr, LTQ_DMA_CS);
102 ltq_dma_w32(ch->nr, LTQ_DMA_CS);
114 ltq_dma_w32(ch->nr, LTQ_DMA_CS);
116 ltq_dma_w32_mask(1 << ch->nr, 0, LTQ_DMA_IRNEN);
126 ch->desc = 0;
127 ch->desc_base = dma_alloc_coherent(ch->dev,
129 &ch->phys, GFP_ATOMIC);
132 ltq_dma_w32(ch->nr, LTQ_DMA_CS);
133 ltq_dma_w32(ch->phys, LTQ_DMA_CDBA);
152 ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN);
167 ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN);
176 if (!ch->desc_base)
179 dma_free_coherent(ch->dev, LTQ_DESC_NUM * LTQ_DESC_SIZE,
180 ch->desc_base, ch->phys);
250 clk = clk_get(&pdev->dev, NULL);
272 dev_info(&pdev->dev,
273 "Init done - hw rev: %X, ports: %d, channels: %d\n",
280 { .compatible = "lantiq,dma-xway" },
287 .name = "dma-xway",