diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 4469a177751a..0bdd5fe31d66 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -640,6 +640,16 @@ config SPI_ROCKCHIP
 	  The main usecase of this controller is to use spi flash as boot
 	  device.
 
+config SPI_ROCKCHIP_MISCDEV
+	bool "Rockchip SPI controller misc devices"
+	depends on SPI_ROCKCHIP
+	help
+	  This selects a misc driver for Rockchip SPI controller.
+
+	  If you say yes to this option, It will register rkspi-devN misc device
+	  for each spi controller and support to get the controller register
+	  resource by calling mmap.
+
 config SPI_ROCKCHIP_SFC
 	tristate "Rockchip Serial Flash Controller (SFC)"
 	imply ROCKCHIP_MTD_VENDOR_STORAGE
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index be61a77901e4..c8302e38f4c2 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -8,6 +8,7 @@
 #include <linux/clk.h>
 #include <linux/dmaengine.h>
 #include <linux/interrupt.h>
+#include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
@@ -169,6 +170,8 @@
 #define ROCKCHIP_SPI_VER2_TYPE1			0x05EC0002
 #define ROCKCHIP_SPI_VER2_TYPE2			0x00110002
 
+#define ROCKCHIP_SPI_REGISTER_SIZE		0x1000
+
 struct rockchip_spi_quirks {
 	u32 max_baud_div_in_cpha;
 };
@@ -209,6 +212,8 @@ struct rockchip_spi {
 	bool cs_high_supported; /* native CS supports active-high polarity */
 
 	struct spi_transfer *xfer; /* Store xfer temporarily */
+	phys_addr_t base_addr_phy;
+	struct miscdevice miscdev;
 
 	/* quirks */
 	u32 max_baud_div_in_cpha;
@@ -785,6 +790,60 @@ static int rockchip_spi_setup(struct spi_device *spi)
 	return 0;
 }
 
+static int rockchip_spi_misc_open(struct inode *inode, struct file *filp)
+{
+	struct miscdevice *misc = filp->private_data;
+	struct spi_controller *ctlr = dev_get_drvdata(misc->parent);
+	struct rockchip_spi *rs = spi_controller_get_devdata(ctlr);
+
+	pm_runtime_get_sync(rs->dev);
+
+	return 0;
+}
+
+static int rockchip_spi_misc_release(struct inode *inode, struct file *filp)
+{
+	struct miscdevice *misc = filp->private_data;
+	struct spi_controller *ctlr = dev_get_drvdata(misc->parent);
+	struct rockchip_spi *rs = spi_controller_get_devdata(ctlr);
+
+	pm_runtime_put(rs->dev);
+
+	return 0;
+}
+
+static int rockchip_spi_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct miscdevice *misc = filp->private_data;
+	struct spi_controller *ctlr = dev_get_drvdata(misc->parent);
+	struct rockchip_spi *rs = spi_controller_get_devdata(ctlr);
+	size_t size = vma->vm_end - vma->vm_start;
+	int err;
+
+	if (size > ROCKCHIP_SPI_REGISTER_SIZE) {
+		dev_warn(misc->parent, "mmap size is out of limitation\n");
+		return -EINVAL;
+	}
+
+	vma->vm_flags |= VM_IO;
+	vma->vm_flags |= (VM_DONTEXPAND | VM_DONTDUMP);
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+	err = remap_pfn_range(vma, vma->vm_start,
+			      __phys_to_pfn(rs->base_addr_phy),
+			      size, vma->vm_page_prot);
+	if (err)
+		return -EAGAIN;
+
+	return 0;
+}
+
+static const struct file_operations rockchip_spi_misc_fops = {
+	.open		= rockchip_spi_misc_open,
+	.release	= rockchip_spi_misc_release,
+	.mmap		= rockchip_spi_mmap,
+};
+
 static int rockchip_spi_probe(struct platform_device *pdev)
 {
 	int ret;
@@ -821,6 +880,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 		ret =  PTR_ERR(rs->regs);
 		goto err_put_ctlr;
 	}
+	rs->base_addr_phy = mem->start;
 
 	if (!has_acpi_companion(&pdev->dev))
 		rs->apb_pclk = devm_clk_get(&pdev->dev, "apb_pclk");
@@ -999,6 +1059,22 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 		goto err_free_dma_rx;
 	}
 
+	if (IS_ENABLED(CONFIG_SPI_ROCKCHIP_MISCDEV)) {
+		char misc_name[20];
+
+		snprintf(misc_name, sizeof(misc_name), "rkspi-dev%d", ctlr->bus_num);
+		rs->miscdev.minor = MISC_DYNAMIC_MINOR;
+		rs->miscdev.name = misc_name;
+		rs->miscdev.fops = &rockchip_spi_misc_fops;
+		rs->miscdev.parent = &pdev->dev;
+
+		ret = misc_register(&rs->miscdev);
+		if (ret)
+			dev_err(&pdev->dev, "failed to register misc device %s\n", misc_name);
+		else
+			dev_info(&pdev->dev, "register misc device %s\n", misc_name);
+	}
+
 	return 0;
 
 err_free_dma_rx:
@@ -1026,6 +1102,9 @@ static int rockchip_spi_remove(struct platform_device *pdev)
 	struct spi_controller *ctlr = spi_controller_get(platform_get_drvdata(pdev));
 	struct rockchip_spi *rs = spi_controller_get_devdata(ctlr);
 
+	if (IS_ENABLED(CONFIG_SPI_ROCKCHIP_MISCDEV))
+		misc_deregister(&rs->miscdev);
+
 	pm_runtime_get_sync(&pdev->dev);
 
 	clk_disable_unprepare(rs->sclk_in);