Lines Matching +full:burst +full:- +full:clk +full:- +full:enable

1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <linux/dma-mapping.h>
13 #include <linux/clk.h>
38 #define DMA_PDEN		BIT(6)		/* enable packet drop */
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);  in ltq_dma_enable_irq()
67 	ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN);  in ltq_dma_enable_irq()
78 	ltq_dma_w32(ch->nr, LTQ_DMA_CS);  in ltq_dma_disable_irq()
79 	ltq_dma_w32_mask(1 << ch->nr, 0, LTQ_DMA_IRNEN);  in ltq_dma_disable_irq()
90 	ltq_dma_w32(ch->nr, LTQ_DMA_CS);  in ltq_dma_ack_irq()
102 	ltq_dma_w32(ch->nr, LTQ_DMA_CS);  in ltq_dma_open()
114 	ltq_dma_w32(ch->nr, LTQ_DMA_CS);  in ltq_dma_close()
116 	ltq_dma_w32_mask(1 << ch->nr, 0, LTQ_DMA_IRNEN);  in ltq_dma_close()
126 	ch->desc = 0;  in ltq_dma_alloc()
127 	ch->desc_base = dma_alloc_coherent(ch->dev,  in ltq_dma_alloc()
129 					   &ch->phys, GFP_ATOMIC);  in ltq_dma_alloc()
132 	ltq_dma_w32(ch->nr, LTQ_DMA_CS);  in ltq_dma_alloc()
133 	ltq_dma_w32(ch->phys, LTQ_DMA_CDBA);  in ltq_dma_alloc()
152 	ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN);  in ltq_dma_alloc_tx()
167 	ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN);  in ltq_dma_alloc_rx()
176 	if (!ch->desc_base)  in ltq_dma_free()
179 	dma_free_coherent(ch->dev, LTQ_DESC_NUM * LTQ_DESC_SIZE,  in ltq_dma_free()
180 		ch->desc_base, ch->phys);  in ltq_dma_free()
241 	struct clk *clk;  in ltq_dma_init()  local
250 	clk = clk_get(&pdev->dev, NULL);  in ltq_dma_init()
251 	if (IS_ERR(clk))  in ltq_dma_init()
254 	clk_enable(clk);  in ltq_dma_init()
272 	dev_info(&pdev->dev,  in ltq_dma_init()
273 		"Init done - hw rev: %X, ports: %d, channels: %d\n",  in ltq_dma_init()
280 	{ .compatible = "lantiq,dma-xway" },
287 		.name = "dma-xway",