+static int mv_cesa_get_sram(struct platform_device *pdev,
+ struct crypto_priv *cp)
+{
+ struct resource *res;
+ u32 sram_size = MV_CESA_DEFAULT_SRAM_SIZE;
+
+ of_property_read_u32(pdev->dev.of_node, "marvell,crypto-sram-size",
+ &sram_size);
+
+ cp->sram_size = sram_size;
+ cp->sram_pool = of_gen_pool_get(pdev->dev.of_node,
+ "marvell,crypto-srams", 0);
+ if (cp->sram_pool) {
+ cp->sram = gen_pool_dma_alloc(cp->sram_pool, sram_size,
+ &cp->sram_dma);
+ if (cp->sram)
+ return 0;
+
+ return -ENOMEM;
+ }
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "sram");
+ if (!res || resource_size(res) < cp->sram_size)
+ return -EINVAL;
+
+ cp->sram = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(cp->sram))
+ return PTR_ERR(cp->sram);
+
+ return 0;
+}
+