rockchip: Support OP-TEE for ARM in FIT images created by binman

CONFIG_SPL_OPTEE_IMAGE option is used during DRAM size detection for
Rockchip ARM platform to indicate that an OP-TEE binary was already loaded
and a Trusted Execution Environment (TEE) is available in order to
block/reserve a memory-region for it.

This adds a bunch of new `#if's` to u-boot-rockchip.dtsi to include the
OP-TEE binary in the FIT image for ARM SOCs if CONFIG_SPL_OPTEE_IMAGE is
selected.
That makes it a little harder to read, but I opted for that, because all
the duplicates in an extra ARM-OP-TEE-specfic .dtsi would be the greater
evil, IMHO. Besides it's more likley being "forgotten" to sync when changes
in u-boot-rockchip.dtsi are made.

The no longer required rockchip-optee.dtsi and it's inclusions are dropped.

The hardcoded load address is common across all OP-TEE implemenations for
Rockchip (vendor and upstream).

The OP-TEE-binary is non-optional if CONFIG_SPL_OPTEE_IMAGE is selected and
there will be an error if the file does not exist and/or `TEE=` build
option is missing.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/arch/arm/dts/rk3288-u-boot.dtsi b/arch/arm/dts/rk3288-u-boot.dtsi
index 1920698..c4c5a2d 100644 (file)
--- a/arch/arm/dts/rk3288-u-boot.dtsi
+++ b/arch/arm/dts/rk3288-u-boot.dtsi
@@ -4,7 +4,6 @@
  */
 
 #include "rockchip-u-boot.dtsi"
-#include "rockchip-optee.dtsi"
 
 / {
        aliases {

diff --git a/arch/arm/dts/rockchip-optee.dtsi b/arch/arm/dts/rockchip-optee.dtsi
deleted file mode 100644 (file)
index d84c10c..0000000
--- a/arch/arm/dts/rockchip-optee.dtsi
+++ /dev/null
@@ -1,64 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2020 Google LLC
- */
-
-#include <config.h>
-
-#if defined(CONFIG_HAS_ROM) && defined(CONFIG_FIT)
-&binman {
-       itb {
-               filename = "u-boot.itb";
-               fit {
-                       fit,external-offset = <CONFIG_FIT_EXTERNAL_OFFSET>;
-                       description = "FIT image with OP-TEE support";
-                       #address-cells = <1>;
-
-                       images {
-                               uboot {
-                                       description = "U-Boot";
-                                       type = "standalone";
-                                       os = "U-Boot";
-                                       arch = "arm";
-                                       compression = "none";
-                                       load = <CONFIG_TEXT_BASE>;
-
-                                       u-boot-nodtb {
-                                       };
-                               };
-                               optee {
-                                       description = "OP-TEE";
-                                       type = "firmware";
-                                       arch = "arm";
-                                       os = "tee";
-                                       compression = "none";
-                                       load = <(CFG_SYS_SDRAM_BASE + 0x8400000)>;
-                                       entry = <(CFG_SYS_SDRAM_BASE + 0x8400000)>;
-
-                                       blob-ext {
-                                               filename = "tee.bin";
-                                       };
-                               };
-                               fdt {
-                                       description = CONFIG_SYS_BOARD;
-                                       type = "flat_dt";
-                                       compression = "none";
-
-                                       u-boot-dtb {
-                                       };
-                               };
-                       };
-
-                       configurations {
-                               default = "conf";
-                               conf {
-                                       description = CONFIG_SYS_BOARD;
-                                       firmware = "optee";
-                                       loadables = "uboot";
-                                       fdt = "fdt";
-                               };
-                       };
-               };
-       };
-};
-#endif

diff --git a/arch/arm/dts/rockchip-u-boot.dtsi b/arch/arm/dts/rockchip-u-boot.dtsi
index 2878b80..be2658e 100644 (file)
--- a/arch/arm/dts/rockchip-u-boot.dtsi
+++ b/arch/arm/dts/rockchip-u-boot.dtsi
@@ -33,9 +33,13 @@
                        };
                };
 
-#if defined(CONFIG_SPL_FIT) && defined(CONFIG_ARM64)
+#if defined(CONFIG_SPL_FIT) && (defined(CONFIG_ARM64) || defined(CONFIG_SPL_OPTEE_IMAGE))
                fit: fit {
+#ifdef CONFIG_ARM64
                        description = "FIT image for U-Boot with bl31 (TF-A)";
+#else
+                       description = "FIT image with OP-TEE";
+#endif
                        #address-cells = <1>;
                        fit,fdt-list = "of-list";
                        filename = "u-boot.itb";
@@ -44,10 +48,14 @@
                        offset = <CONFIG_SPL_PAD_TO>;
                        images {
                                u-boot {
-                                       description = "U-Boot (64-bit)";
+                                       description = "U-Boot";
                                        type = "standalone";
                                        os = "U-Boot";
+#ifdef CONFIG_ARM64
                                        arch = "arm64";
+#else
+                                       arch = "arm";
+#endif
                                        compression = "none";
                                        load = <CONFIG_TEXT_BASE>;
                                        entry = <CONFIG_TEXT_BASE>;
@@ -60,6 +68,7 @@
 #endif
                                };
 
+#ifdef CONFIG_ARM64
                                @atf-SEQ {
                                        fit,operation = "split-elf";
                                        description = "ARM Trusted Firmware";
@@ -99,6 +108,25 @@
                                        };
 #endif
                                };
+#else
+                               op-tee {
+                                       description = "OP-TEE";
+                                       type = "tee";
+                                       arch = "arm";
+                                       os = "tee";
+                                       compression = "none";
+                                       load = <(CFG_SYS_SDRAM_BASE + 0x8400000)>;
+                                       entry = <(CFG_SYS_SDRAM_BASE + 0x8400000)>;
+
+                                       tee-os {
+                                       };
+#ifdef CONFIG_SPL_FIT_SIGNATURE
+                                       hash {
+                                               algo = "sha256";
+                                       };
+#endif
+                               };
+#endif
 
                                @fdt-SEQ {
                                        description = "fdt-NAME";
@@ -117,7 +145,11 @@
                                @config-SEQ {
                                        description = "NAME.dtb";
                                        fdt = "fdt-SEQ";
+#ifdef CONFIG_ARM64
                                        fit,firmware = "atf-1", "u-boot";
+#else
+                                       fit,firmware = "op-tee", "u-boot";
+#endif
                                        fit,loadables;
                                };
                        };
@@ -150,7 +182,7 @@
                        };
                };
 
-#ifdef CONFIG_ARM64
+#if defined(CONFIG_ARM64) || defined(CONFIG_SPL_OPTEE_IMAGE)
                fit {
                        type = "blob";
                        filename = "u-boot.itb";