1 files changed, 104 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/memconf.c b/arch/arm/mach-uniphier/memconf.c
new file mode 100644
index 0000000000..bf3c177ed9
--- /dev/null
+++ b/arch/arm/mach-uniphier/memconf.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2011-2015 Panasonic Corporation
+ *   Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/sizes.h>
+#include <asm/io.h>
+#include <mach/sg-regs.h>
+
+static inline u32 sg_memconf_val_ch0(unsigned long size, int num)
+{
+	int size_mb = size / num;
+	u32 ret;
+
+	switch (size_mb) {
+	case SZ_64M:
+		ret = SG_MEMCONF_CH0_SZ_64M;
+		break;
+	case SZ_128M:
+		ret = SG_MEMCONF_CH0_SZ_128M;
+		break;
+	case SZ_256M:
+		ret = SG_MEMCONF_CH0_SZ_256M;
+		break;
+	case SZ_512M:
+		ret = SG_MEMCONF_CH0_SZ_512M;
+		break;
+	case SZ_1G:
+		ret = SG_MEMCONF_CH0_SZ_1G;
+		break;
+	default:
+		BUG();
+		break;
+	}
+
+	switch (num) {
+	case 1:
+		ret |= SG_MEMCONF_CH0_NUM_1;
+		break;
+	case 2:
+		ret |= SG_MEMCONF_CH0_NUM_2;
+		break;
+	default:
+		BUG();
+		break;
+	}
+	return ret;
+}
+
+static inline u32 sg_memconf_val_ch1(unsigned long size, int num)
+{
+	int size_mb = size / num;
+	u32 ret;
+
+	switch (size_mb) {
+	case SZ_64M:
+		ret = SG_MEMCONF_CH1_SZ_64M;
+		break;
+	case SZ_128M:
+		ret = SG_MEMCONF_CH1_SZ_128M;
+		break;
+	case SZ_256M:
+		ret = SG_MEMCONF_CH1_SZ_256M;
+		break;
+	case SZ_512M:
+		ret = SG_MEMCONF_CH1_SZ_512M;
+		break;
+	case SZ_1G:
+		ret = SG_MEMCONF_CH1_SZ_1G;
+		break;
+	default:
+		BUG();
+		break;
+	}
+
+	switch (num) {
+	case 1:
+		ret |= SG_MEMCONF_CH1_NUM_1;
+		break;
+	case 2:
+		ret |= SG_MEMCONF_CH1_NUM_2;
+		break;
+	default:
+		BUG();
+		break;
+	}
+	return ret;
+}
+
+void memconf_init(void)
+{
+	u32 tmp;
+
+	/* Set DDR size */
+	tmp = sg_memconf_val_ch0(CONFIG_SDRAM0_SIZE, CONFIG_DDR_NUM_CH0);
+	tmp |= sg_memconf_val_ch1(CONFIG_SDRAM1_SIZE, CONFIG_DDR_NUM_CH1);
+#if CONFIG_SDRAM0_BASE + CONFIG_SDRAM0_SIZE < CONFIG_SDRAM1_BASE
+	tmp |= SG_MEMCONF_SPARSEMEM;
+#endif
+	writel(tmp, SG_MEMCONF);
+}