diff mbox series

[U-Boot,v3,5/9] rockchip: rk3308: Add sdram driver

Message ID 20191114032218.6613-1-andy.yan@rock-chips.com
State Accepted
Delegated to: Kever Yang
Headers show
Series Add support for RK3308 SOC | expand

Commit Message

Andy Yan Nov. 14, 2019, 3:22 a.m. UTC 
A dm based dram driver for rk3308 u-boot
to get capacity.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang<kever.yang@rock-chips.com>
---

Changes in v3: None

 drivers/ram/rockchip/Makefile       |  1 +
 drivers/ram/rockchip/sdram_rk3308.c | 55 +++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 drivers/ram/rockchip/sdram_rk3308.c
diff mbox series

Patch

diff --git a/drivers/ram/rockchip/Makefile b/drivers/ram/rockchip/Makefile
index feb1f82d00..1adca32dcb 100644
--- a/drivers/ram/rockchip/Makefile
+++ b/drivers/ram/rockchip/Makefile
@@ -9,5 +9,6 @@  obj-$(CONFIG_ROCKCHIP_RK3128) = sdram_rk3128.o
 obj-$(CONFIG_ROCKCHIP_RK3188) = sdram_rk3188.o
 obj-$(CONFIG_ROCKCHIP_RK322X) = sdram_rk322x.o
 obj-$(CONFIG_ROCKCHIP_RK3288) = sdram_rk3288.o
+obj-$(CONFIG_ROCKCHIP_RK3308) = sdram_rk3308.o
 obj-$(CONFIG_ROCKCHIP_RK3328) = sdram_rk3328.o
 obj-$(CONFIG_RAM_RK3399) += sdram_rk3399.o
diff --git a/drivers/ram/rockchip/sdram_rk3308.c b/drivers/ram/rockchip/sdram_rk3308.c
new file mode 100644
index 0000000000..43d44cce62
--- /dev/null
+++ b/drivers/ram/rockchip/sdram_rk3308.c
@@ -0,0 +1,55 @@ 
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * (C) Copyright 2019 Rockchip Electronics Co., Ltd.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <ram.h>
+#include <syscon.h>
+#include <asm/arch/grf_rk3308.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/sdram_common.h>
+
+struct dram_info {
+	struct ram_info info;
+	struct rk3308_grf *grf;
+};
+
+static int rk3308_dmc_probe(struct udevice *dev)
+{
+	struct dram_info *priv = dev_get_priv(dev);
+
+	priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+	priv->info.base = CONFIG_SYS_SDRAM_BASE;
+	priv->info.size = rockchip_sdram_size((phys_addr_t)&priv->grf->os_reg2);
+
+	return 0;
+}
+
+static int rk3308_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 rk3308_dmc_ops = {
+	.get_info = rk3308_dmc_get_info,
+};
+
+static const struct udevice_id rk3308_dmc_ids[] = {
+	{ .compatible = "rockchip,rk3308-dmc" },
+	{ }
+};
+
+U_BOOT_DRIVER(dmc_rk3308) = {
+	.name = "rockchip_rk3308_dmc",
+	.id = UCLASS_RAM,
+	.of_match = rk3308_dmc_ids,
+	.ops = &rk3308_dmc_ops,
+	.probe = rk3308_dmc_probe,
+	.priv_auto_alloc_size = sizeof(struct dram_info),
+};