drivers: soc: sunxi: add support for A64 and its SRAM C

Allwinner A64's display engine claims the SRAM C section to work.

Add support for the A64 SRAM controller and the SRAM C section of it.

Signed-off-by: Icenowy Zheng <[e-mail]>
Signed-off-by: Chen-Yu Tsai <[e-mail]>

drivers/soc/sunxi/sunxi_sram.c

···
 				  SUNXI_SRAM_MAP(1, 1, "usb-otg")),
 };
 
+static struct sunxi_sram_desc sun50i_a64_sram_c = {
+	.data	= SUNXI_SRAM_DATA("C", 0x4, 24, 1,
+				  SUNXI_SRAM_MAP(0, 1, "cpu"),
+				  SUNXI_SRAM_MAP(1, 0, "de2")),
+};
+
 static const struct of_device_id sunxi_sram_dt_ids[] = {
 	{
 		.compatible	= "allwinner,sun4i-a10-sram-a3-a4",
···
 	{
 		.compatible	= "allwinner,sun4i-a10-sram-d",
 		.data		= &sun4i_a10_sram_d.data,
+	},
+	{
+		.compatible	= "allwinner,sun50i-a64-sram-c",
+		.data		= &sun50i_a64_sram_c.data,
 	},
 	{}
 };
···
 
 static const struct of_device_id sunxi_sram_dt_match[] = {
 	{ .compatible = "allwinner,sun4i-a10-sram-controller" },
+	{ .compatible = "allwinner,sun50i-a64-sram-controller" },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sunxi_sram_dt_match);