11 #include "jh7110-cryp.h"
39 	struct starfive_cryp_dev *cryp = NULL, *tmp;  in starfive_cryp_find_dev()  local
42 	if (!ctx->cryp) {  in starfive_cryp_find_dev()
44 			cryp = tmp;  in starfive_cryp_find_dev()
47 		ctx->cryp = cryp;  in starfive_cryp_find_dev()
49 		cryp = ctx->cryp;  in starfive_cryp_find_dev()
54 	return cryp;  in starfive_cryp_find_dev()
64 static int starfive_dma_init(struct starfive_cryp_dev *cryp)  in starfive_dma_init()  argument
71 	cryp->tx = dma_request_chan(cryp->dev, "tx");  in starfive_dma_init()
72 	if (IS_ERR(cryp->tx))  in starfive_dma_init()
73 		return dev_err_probe(cryp->dev, PTR_ERR(cryp->tx),  in starfive_dma_init()
76 	cryp->rx = dma_request_chan(cryp->dev, "rx");  in starfive_dma_init()
77 	if (IS_ERR(cryp->rx)) {  in starfive_dma_init()
78 		dma_release_channel(cryp->tx);  in starfive_dma_init()
79 		return dev_err_probe(cryp->dev, PTR_ERR(cryp->rx),  in starfive_dma_init()
86 static void starfive_dma_cleanup(struct starfive_cryp_dev *cryp)  in starfive_dma_cleanup()  argument
88 	dma_release_channel(cryp->tx);  in starfive_dma_cleanup()
89 	dma_release_channel(cryp->rx);  in starfive_dma_cleanup()
96 	struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)priv;  in starfive_cryp_irq()  local
98 	mask = readl(cryp->base + STARFIVE_IE_MASK_OFFSET);  in starfive_cryp_irq()
99 	status = readl(cryp->base + STARFIVE_IE_FLAG_OFFSET);  in starfive_cryp_irq()
102 		writel(mask, cryp->base + STARFIVE_IE_MASK_OFFSET);  in starfive_cryp_irq()
103 		tasklet_schedule(&cryp->aes_done);  in starfive_cryp_irq()
108 		writel(mask, cryp->base + STARFIVE_IE_MASK_OFFSET);  in starfive_cryp_irq()
109 		tasklet_schedule(&cryp->hash_done);  in starfive_cryp_irq()
117 	struct starfive_cryp_dev *cryp;  in starfive_cryp_probe()  local
122 	cryp = devm_kzalloc(&pdev->dev, sizeof(*cryp), GFP_KERNEL);  in starfive_cryp_probe()
123 	if (!cryp)  in starfive_cryp_probe()
126 	platform_set_drvdata(pdev, cryp);  in starfive_cryp_probe()
127 	cryp->dev = &pdev->dev;  in starfive_cryp_probe()
129 	cryp->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);  in starfive_cryp_probe()
130 	if (IS_ERR(cryp->base))  in starfive_cryp_probe()
131 		return dev_err_probe(&pdev->dev, PTR_ERR(cryp->base),  in starfive_cryp_probe()
134 	tasklet_init(&cryp->aes_done, starfive_aes_done_task, (unsigned long)cryp);  in starfive_cryp_probe()
135 	tasklet_init(&cryp->hash_done, starfive_hash_done_task, (unsigned long)cryp);  in starfive_cryp_probe()
137 	cryp->phys_base = res->start;  in starfive_cryp_probe()
138 	cryp->dma_maxburst = 32;  in starfive_cryp_probe()
139 	cryp->side_chan = side_chan;  in starfive_cryp_probe()
141 	cryp->hclk = devm_clk_get(&pdev->dev, "hclk");  in starfive_cryp_probe()
142 	if (IS_ERR(cryp->hclk))  in starfive_cryp_probe()
143 		return dev_err_probe(&pdev->dev, PTR_ERR(cryp->hclk),  in starfive_cryp_probe()
146 	cryp->ahb = devm_clk_get(&pdev->dev, "ahb");  in starfive_cryp_probe()
147 	if (IS_ERR(cryp->ahb))  in starfive_cryp_probe()
148 		return dev_err_probe(&pdev->dev, PTR_ERR(cryp->ahb),  in starfive_cryp_probe()
151 	cryp->rst = devm_reset_control_get_shared(cryp->dev, NULL);  in starfive_cryp_probe()
152 	if (IS_ERR(cryp->rst))  in starfive_cryp_probe()
153 		return dev_err_probe(&pdev->dev, PTR_ERR(cryp->rst),  in starfive_cryp_probe()
161 			       (void *)cryp);  in starfive_cryp_probe()
166 	clk_prepare_enable(cryp->hclk);  in starfive_cryp_probe()
167 	clk_prepare_enable(cryp->ahb);  in starfive_cryp_probe()
168 	reset_control_deassert(cryp->rst);  in starfive_cryp_probe()
171 	list_add(&cryp->list, &dev_list.dev_list);  in starfive_cryp_probe()
174 	ret = starfive_dma_init(cryp);  in starfive_cryp_probe()
179 	cryp->engine = crypto_engine_alloc_init(&pdev->dev, 1);  in starfive_cryp_probe()
180 	if (!cryp->engine) {  in starfive_cryp_probe()
185 	ret = crypto_engine_start(cryp->engine);  in starfive_cryp_probe()
208 	crypto_engine_stop(cryp->engine);  in starfive_cryp_probe()
210 	crypto_engine_exit(cryp->engine);  in starfive_cryp_probe()
212 	starfive_dma_cleanup(cryp);  in starfive_cryp_probe()
215 	list_del(&cryp->list);  in starfive_cryp_probe()
218 	clk_disable_unprepare(cryp->hclk);  in starfive_cryp_probe()
219 	clk_disable_unprepare(cryp->ahb);  in starfive_cryp_probe()
220 	reset_control_assert(cryp->rst);  in starfive_cryp_probe()
222 	tasklet_kill(&cryp->aes_done);  in starfive_cryp_probe()
223 	tasklet_kill(&cryp->hash_done);  in starfive_cryp_probe()
230 	struct starfive_cryp_dev *cryp = platform_get_drvdata(pdev);  in starfive_cryp_remove()  local
236 	tasklet_kill(&cryp->aes_done);  in starfive_cryp_remove()
237 	tasklet_kill(&cryp->hash_done);  in starfive_cryp_remove()
239 	crypto_engine_stop(cryp->engine);  in starfive_cryp_remove()
240 	crypto_engine_exit(cryp->engine);  in starfive_cryp_remove()
242 	starfive_dma_cleanup(cryp);  in starfive_cryp_remove()
245 	list_del(&cryp->list);  in starfive_cryp_remove()
248 	clk_disable_unprepare(cryp->hclk);  in starfive_cryp_remove()
249 	clk_disable_unprepare(cryp->ahb);  in starfive_cryp_remove()
250 	reset_control_assert(cryp->rst);  in starfive_cryp_remove()