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path: root/drivers/ram/rockchip
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-rw-r--r--drivers/ram/rockchip/Makefile1
-rw-r--r--drivers/ram/rockchip/sdram_rk3328.c60
2 files changed, 61 insertions, 0 deletions
diff --git a/drivers/ram/rockchip/Makefile b/drivers/ram/rockchip/Makefile
index 95aae4846b..6c78eff7fa 100644
--- a/drivers/ram/rockchip/Makefile
+++ b/drivers/ram/rockchip/Makefile
@@ -7,4 +7,5 @@
obj-$(CONFIG_ROCKCHIP_RK3368) = dmc-rk3368.o
obj-$(CONFIG_ROCKCHIP_RK3188) = sdram_rk3188.o
obj-$(CONFIG_ROCKCHIP_RK3288) = sdram_rk3288.o
+obj-$(CONFIG_ROCKCHIP_RK3328) = sdram_rk3328.o
obj-$(CONFIG_ROCKCHIP_RK3399) = sdram_rk3399.o
diff --git a/drivers/ram/rockchip/sdram_rk3328.c b/drivers/ram/rockchip/sdram_rk3328.c
new file mode 100644
index 0000000000..9637a35e23
--- /dev/null
+++ b/drivers/ram/rockchip/sdram_rk3328.c
@@ -0,0 +1,60 @@
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <ram.h>
+#include <syscon.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/grf_rk3328.h>
+#include <asm/arch/sdram_common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+struct dram_info {
+ struct ram_info info;
+ struct rk3328_grf_regs *grf;
+};
+
+static int rk3328_dmc_probe(struct udevice *dev)
+{
+ struct dram_info *priv = dev_get_priv(dev);
+
+ priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+ debug("%s: grf=%p\n", __func__, priv->grf);
+ priv->info.base = CONFIG_SYS_SDRAM_BASE;
+ priv->info.size = rockchip_sdram_size(
+ (phys_addr_t)&priv->grf->os_reg[2]);
+
+ return 0;
+}
+
+static int rk3328_dmc_get_info(struct udevice *dev, struct ram_info *info)
+{
+ struct dram_info *priv = dev_get_priv(dev);
+
+ *info = priv->info;
+
+ return 0;
+}
+
+static struct ram_ops rk3328_dmc_ops = {
+ .get_info = rk3328_dmc_get_info,
+};
+
+
+static const struct udevice_id rk3328_dmc_ids[] = {
+ { .compatible = "rockchip,rk3328-dmc" },
+ { }
+};
+
+U_BOOT_DRIVER(dmc_rk3328) = {
+ .name = "rockchip_rk3328_dmc",
+ .id = UCLASS_RAM,
+ .of_match = rk3328_dmc_ids,
+ .ops = &rk3328_dmc_ops,
+ .probe = rk3328_dmc_probe,
+ .priv_auto_alloc_size = sizeof(struct dram_info),
+};