cmd: rk_secure_storage: dump data which is written in OTP or efuse

Change-Id: I644add22f3aaed546d727de7727d3230ae1a6c01
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>

cmd/Kconfig

@@ -930,6 +930,11 @@ config CMD_RKSFC
 	help
 	  Rockchip SFC device support
 
+config CMD_RK_SECURE_STORAGE
+	bool "dump rockchip efuse/otp content"
+	help
+	  Dump the data which is written in OTP or efuse.
+
 config CMD_SATA
 	bool "sata - Access SATA subsystem"
 	select SATA

cmd/Makefile

@@ -122,6 +122,7 @@ obj-$(CONFIG_CMD_NVME) += nvme.o
 obj-$(CONFIG_CMD_ROCKUSB) += rockusb.o
 obj-$(CONFIG_CMD_RKNAND) += rknand.o
 obj-$(CONFIG_CMD_RKSFC) += rksfc.o
+obj-$(CONFIG_CMD_RK_SECURE_STORAGE) += rk_secure_storage.o
 obj-$(CONFIG_CMD_SF) += sf.o
 obj-$(CONFIG_CMD_SCSI) += scsi.o disk.o
 obj-$(CONFIG_CMD_SHA1SUM) += sha1sum.o

cmd/rk_secure_storage.c

@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <misc.h>
+
+#ifdef CONFIG_ROCKCHIP_OTP
+static int dump_otps(cmd_tbl_t *cmdtp, int flag,
+		     int argc, char * const argv[])
+{
+	struct udevice *dev;
+	u8 otps[64] = {0};
+	int ret;
+
+	/* retrieve the device */
+	ret = uclass_get_device_by_driver(UCLASS_MISC,
+					  DM_GET_DRIVER(rockchip_otp), &dev);
+	if (ret) {
+		printf("%s: no misc-device found\n", __func__);
+		return 0;
+	}
+
+	ret = misc_read(dev, 0, &otps, sizeof(otps));
+	if (ret) {
+		printf("%s: misc_read failed\n", __func__);
+		return 0;
+	}
+
+	printf("otp-contents:\n");
+	print_buffer(0, otps, 1, 64, 16);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	rockchip_dump_otps, 1, 1, dump_otps,
+	"Dump the content of the otps",
+	""
+);
+#endif
+
+#ifdef CONFIG_ROCKCHIP_EFUSE
+static int dump_efuses(cmd_tbl_t *cmdtp, int flag,
+		       int argc, char * const argv[])
+{
+	/*
+	 * N.B.: This function is tailored towards the RK3399 and assumes that
+	 *       there's always 32 fuses x 32 bits (i.e. 128 bytes of data) to
+	 *       be read.
+	 */
+
+	struct udevice *dev;
+	u8 fuses[128] = {0};
+	int ret;
+
+	/* retrieve the device */
+	ret = uclass_get_device_by_driver(UCLASS_MISC,
+					  DM_GET_DRIVER(rockchip_efuse), &dev);
+	if (ret) {
+		printf("%s: no misc-device found\n", __func__);
+		return 0;
+	}
+
+	ret = misc_read(dev, 0, &fuses, sizeof(fuses));
+	if (ret) {
+		printf("%s: misc_read failed\n", __func__);
+		return 0;
+	}
+
+	printf("efuse-contents:\n");
+	print_buffer(0, fuses, 1, 128, 16);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	rockchip_dump_efuses, 1, 1, dump_efuses,
+	"Dump the content of the efuses",
+	""
+);
+#endif