dm: ram: bmips: add BCM6318 support

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

drivers/ram/bmips_ram.c

@@ -23,6 +23,8 @@
 #define SDRAM_CFG_32B_MASK	(1 << SDRAM_CFG_32B_SHIFT)
 #define SDRAM_CFG_BANK_SHIFT	13
 #define SDRAM_CFG_BANK_MASK	(1 << SDRAM_CFG_BANK_SHIFT)
+#define SDRAM_6318_SPACE_SHIFT	4
+#define SDRAM_6318_SPACE_MASK	(0xf << SDRAM_6318_SPACE_SHIFT)
 
 #define MEMC_CFG_REG		0x4
 #define MEMC_CFG_32B_SHIFT	1
@@ -45,6 +47,16 @@ struct bmips_ram_priv {
 	const struct bmips_ram_hw *hw;
 };
 
+static ulong bcm6318_get_ram_size(struct bmips_ram_priv *priv)
+{
+	u32 val;
+
+	val = readl_be(priv->regs + SDRAM_CFG_REG);
+	val = (val & SDRAM_6318_SPACE_MASK) >> SDRAM_6318_SPACE_SHIFT;
+
+	return (1 << (val + 20));
+}
+
 static ulong bcm6328_get_ram_size(struct bmips_ram_priv *priv)
 {
 	return readl_be(priv->regs + DDR_CSEND_REG) << 24;
@@ -102,6 +114,10 @@ static const struct ram_ops bmips_ram_ops = {
 	.get_info = bmips_ram_get_info,
 };
 
+static const struct bmips_ram_hw bmips_ram_bcm6318 = {
+	.get_ram_size = bcm6318_get_ram_size,
+};
+
 static const struct bmips_ram_hw bmips_ram_bcm6328 = {
 	.get_ram_size = bcm6328_get_ram_size,
 };
@@ -116,6 +132,9 @@ static const struct bmips_ram_hw bmips_ram_bcm6358 = {
 
 static const struct udevice_id bmips_ram_ids[] = {
 	{
+		.compatible = "brcm,bcm6318-mc",
+		.data = (ulong)&bmips_ram_bcm6318,
+	}, {
 		.compatible = "brcm,bcm6328-mc",
 		.data = (ulong)&bmips_ram_bcm6328,
 	}, {