14  * DESCRIPTION: The Broadcom iProc RNG200 Driver
110 		status = ioread32(priv->base + RNG_INT_STATUS_OFFSET);  in iproc_rng200_read()
115 				return max - num_remaining;  in iproc_rng200_read()
117 			iproc_rng200_restart(priv->base);  in iproc_rng200_read()
122 		if ((ioread32(priv->base + RNG_FIFO_COUNT_OFFSET) &  in iproc_rng200_read()
127 				*(uint32_t *)buf = ioread32(priv->base +  in iproc_rng200_read()
130 				num_remaining -= sizeof(uint32_t);  in iproc_rng200_read()
133 				uint32_t rnd_number = ioread32(priv->base +  in iproc_rng200_read()
145 				return max - num_remaining;  in iproc_rng200_read()
152 	return max - num_remaining;  in iproc_rng200_read()
161 	val = ioread32(priv->base + RNG_CTRL_OFFSET);  in iproc_rng200_init()
164 	iowrite32(val, priv->base + RNG_CTRL_OFFSET);  in iproc_rng200_init()
175 	val = ioread32(priv->base + RNG_CTRL_OFFSET);  in iproc_rng200_cleanup()
178 	iowrite32(val, priv->base + RNG_CTRL_OFFSET);  in iproc_rng200_cleanup()
184 	struct device *dev = &pdev->dev;  in iproc_rng200_probe()
189 		return -ENOMEM;  in iproc_rng200_probe()
192 	priv->base = devm_platform_ioremap_resource(pdev, 0);  in iproc_rng200_probe()
193 	if (IS_ERR(priv->base)) {  in iproc_rng200_probe()
195 		return PTR_ERR(priv->base);  in iproc_rng200_probe()
200 	priv->rng.name = "iproc-rng200";  in iproc_rng200_probe()
201 	priv->rng.read = iproc_rng200_read;  in iproc_rng200_probe()
202 	priv->rng.init = iproc_rng200_init;  in iproc_rng200_probe()
203 	priv->rng.cleanup = iproc_rng200_cleanup;  in iproc_rng200_probe()
206 	ret = devm_hwrng_register(dev, &priv->rng);  in iproc_rng200_probe()
221 	iproc_rng200_cleanup(&priv->rng);  in iproc_rng200_suspend()
230 	iproc_rng200_init(&priv->rng);  in iproc_rng200_resume()
240 	{ .compatible = "brcm,bcm2711-rng200", },
241 	{ .compatible = "brcm,bcm7211-rng200", },
242 	{ .compatible = "brcm,bcm7278-rng200", },
243 	{ .compatible = "brcm,iproc-rng200", },
250 		.name		= "iproc-rng200",
259 MODULE_DESCRIPTION("iProc RNG200 Random Number Generator driver");