54 static int airoha_trng_irq_mask(struct airoha_trng *trng)  in airoha_trng_irq_mask()  argument
58 	val = readl(trng->base + TRNG_INTR_EN);  in airoha_trng_irq_mask()
60 	writel(val, trng->base + TRNG_INTR_EN);  in airoha_trng_irq_mask()
65 static int airoha_trng_irq_unmask(struct airoha_trng *trng)  in airoha_trng_irq_unmask()  argument
69 	val = readl(trng->base + TRNG_INTR_EN);  in airoha_trng_irq_unmask()
71 	writel(val, trng->base + TRNG_INTR_EN);  in airoha_trng_irq_unmask()
78 	struct airoha_trng *trng = container_of(rng, struct airoha_trng, rng);  in airoha_trng_init()  local
82 	val = readl(trng->base + TRNG_NS_SEK_AND_DAT_EN);  in airoha_trng_init()
84 	writel(val, trng->base + TRNG_NS_SEK_AND_DAT_EN);  in airoha_trng_init()
87 	airoha_trng_irq_unmask(trng);  in airoha_trng_init()
88 	writel(0, trng->base + TRNG_HEALTH_TEST_SW_RST);  in airoha_trng_init()
90 	ret = wait_for_completion_timeout(&trng->rng_op_done, BUSY_LOOP_TIMEOUT);  in airoha_trng_init()
92 		dev_err(trng->dev, "Timeout waiting for Health Check\n");  in airoha_trng_init()
93 		airoha_trng_irq_mask(trng);  in airoha_trng_init()
98 	val = readl(trng->base + TRNG_HEALTH_TEST_STATUS);  in airoha_trng_init()
100 		dev_err(trng->dev, "Health Check fail: %s test fail\n",  in airoha_trng_init()
106 	ret = readl_poll_timeout(trng->base + TRNG_IP_RDY, val,  in airoha_trng_init()
109 		dev_err(trng->dev, "Timeout waiting for IP ready");  in airoha_trng_init()
114 	ret = readl_poll_timeout(trng->base + TRNG_IP_RDY, val,  in airoha_trng_init()
118 		dev_err(trng->dev, "Timeout waiting for IP ready");  in airoha_trng_init()
127 	struct airoha_trng *trng = container_of(rng, struct airoha_trng, rng);  in airoha_trng_cleanup()  local
130 	val = readl(trng->base + TRNG_NS_SEK_AND_DAT_EN);  in airoha_trng_cleanup()
132 	writel(val, trng->base + TRNG_NS_SEK_AND_DAT_EN);  in airoha_trng_cleanup()
135 	writel(SW_RST, trng->base + TRNG_HEALTH_TEST_SW_RST);  in airoha_trng_cleanup()
140 	struct airoha_trng *trng = container_of(rng, struct airoha_trng, rng);  in airoha_trng_read()  local
145 	ret = readl_poll_timeout(trng->base + TRNG_HEALTH_TEST_STATUS, status,  in airoha_trng_read()
148 		dev_err(trng->dev, "Timeout waiting for TRNG RAW Data valid\n");  in airoha_trng_read()
152 	*data = readl(trng->base + TRNG_RAW_DATA_OUT);  in airoha_trng_read()
159 	struct airoha_trng *trng = (struct airoha_trng *)priv;  in airoha_trng_irq()  local
161 	airoha_trng_irq_mask(trng);  in airoha_trng_irq()
163 	complete(&trng->rng_op_done);  in airoha_trng_irq()
171 	struct airoha_trng *trng;  in airoha_trng_probe()  local
175 	trng = devm_kzalloc(dev, sizeof(*trng), GFP_KERNEL);  in airoha_trng_probe()
176 	if (!trng)  in airoha_trng_probe()
179 	trng->base = devm_platform_ioremap_resource(pdev, 0);  in airoha_trng_probe()
180 	if (IS_ERR(trng->base))  in airoha_trng_probe()
181 		return PTR_ERR(trng->base);  in airoha_trng_probe()
187 	airoha_trng_irq_mask(trng);  in airoha_trng_probe()
189 			       pdev->name, (void *)trng);  in airoha_trng_probe()
195 	init_completion(&trng->rng_op_done);  in airoha_trng_probe()
198 	val = readl(trng->base + TRNG_INTR_EN);  in airoha_trng_probe()
200 	writel(val, trng->base + TRNG_INTR_EN);  in airoha_trng_probe()
203 	val = readl(trng->base + TRNG_NS_SEK_AND_DAT_EN);  in airoha_trng_probe()
205 	writel(val, trng->base + TRNG_NS_SEK_AND_DAT_EN);  in airoha_trng_probe()
208 	writel(SW_RST, trng->base + TRNG_HEALTH_TEST_SW_RST);  in airoha_trng_probe()
210 	trng->dev = dev;  in airoha_trng_probe()
211 	trng->rng.name = pdev->name;  in airoha_trng_probe()
212 	trng->rng.init = airoha_trng_init;  in airoha_trng_probe()
213 	trng->rng.cleanup = airoha_trng_cleanup;  in airoha_trng_probe()
214 	trng->rng.read = airoha_trng_read;  in airoha_trng_probe()
216 	ret = devm_hwrng_register(dev, &trng->rng);  in airoha_trng_probe()
226 	{ .compatible = "airoha,en7581-trng", },
233 		.name = "airoha-trng",