arm: imx: Check header before calling spl_load_imx_container

Make sure we have an IMX header before calling spl_load_imx_container,
since if we don't it will fail with -ENOENT. This allows us to fall back to
legacy/raw images if they are also enabled.

This is a functional change, one which likely should have been in place
from the start, but a functional change nonetheless. Previously, all
non-IMX8 images (except FITs without FIT_FULL) would be optimized out if
the only image load method enabled supported IMX8 images. With this change,
support for other image types now has an effect.

There are seven boards with SPL_LOAD_IMX_CONTAINER enabled: three with
SPL_BOOTROM_SUPPORT:

    imx93_11x11_evk_ld imx93_11x11_evk imx8ulp_evk

and four with SPL_MMC:

    deneb imx8qxp_mek giedi imx8qm_mek

All of these boards also have SPL_RAW_IMAGE_SUPPORT and
SPL_LEGACY_IMAGE_FORMAT enabled as well. However, none have FIT support
enabled. Of the six load methods affected by this patch, only SPL_MMC and
SPL_BOOTROM_SUPPORT are enabled with SPL_LOAD_IMX_CONTAINER.
spl_romapi_load_image_seekable does not support legacy or raw images, so
there is no growth. However, mmc_load_image_raw_sector does support loading
legacy/raw images. Since these images could not have been booted before, I
have disabled support for legacy/raw images on these four boards. This
reduces bloat from around 800 bytes to around 200.

There are no in-tree boards with SPL_LOAD_IMX_CONTAINER and AHAB_BOOT both
enabled, so we do not need to worry about potentially falling back to
legacy images in a secure boot scenario.

Future work could include merging imx_container.h with imx8image.h, since
they appear to define mostly the same structures.

Signed-off-by: Sean Anderson <seanga2@gmail.com>

18 files changed, 34 insertions, 14 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 16b17fdd96..67f0fe8c8c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -301,6 +301,7 @@ F:	arch/arm/include/asm/mach-imx/
 F:	board/freescale/*mx*/
 F:	board/freescale/common/
 F:	drivers/serial/serial_mxc.c
+F:	include/imx_container.h
 
 ARM HISILICON
 M:	Peter Griffin <peter.griffin@linaro.org>
diff --git a/arch/arm/include/asm/mach-imx/ahab.h b/arch/arm/include/asm/mach-imx/ahab.h
index 4222e3db27..4884f05625 100644
--- a/arch/arm/include/asm/mach-imx/ahab.h
+++ b/arch/arm/include/asm/mach-imx/ahab.h
@@ -6,7 +6,7 @@
 #ifndef __IMX_AHAB_H__
 #define __IMX_AHAB_H__
 
-#include <asm/mach-imx/image.h>
+#include <imx_container.h>
 
 int ahab_auth_cntr_hdr(struct container_hdr *container, u16 length);
 int ahab_auth_release(void);
diff --git a/arch/arm/mach-imx/cmd_dek.c b/arch/arm/mach-imx/cmd_dek.c
index 6fa5b41fcd..2f389dbe8d 100644
--- a/arch/arm/mach-imx/cmd_dek.c
+++ b/arch/arm/mach-imx/cmd_dek.c
@@ -18,12 +18,12 @@
 #include <mapmem.h>
 #include <tee.h>
 #ifdef CONFIG_IMX_SECO_DEK_ENCAP
+#include <imx_container.h>
 #include <firmware/imx/sci/sci.h>
-#include <asm/mach-imx/image.h>
 #endif
 #ifdef CONFIG_IMX_ELE_DEK_ENCAP
+#include <imx_container.h>
 #include <asm/mach-imx/ele_api.h>
-#include <asm/mach-imx/image.h>
 #endif
 
 #include <cpu_func.h>
diff --git a/arch/arm/mach-imx/ele_ahab.c b/arch/arm/mach-imx/ele_ahab.c
index 6a1ad198f8..295c055ad0 100644
--- a/arch/arm/mach-imx/ele_ahab.c
+++ b/arch/arm/mach-imx/ele_ahab.c
@@ -6,12 +6,12 @@
 #include <common.h>
 #include <command.h>
 #include <errno.h>
+#include <imx_container.h>
 #include <asm/io.h>
 #include <asm/mach-imx/ele_api.h>
 #include <asm/mach-imx/sys_proto.h>
 #include <asm/arch-imx/cpu.h>
 #include <asm/arch/sys_proto.h>
-#include <asm/mach-imx/image.h>
 #include <console.h>
 #include <cpu_func.h>
 #include <asm/global_data.h>
diff --git a/arch/arm/mach-imx/image-container.c b/arch/arm/mach-imx/image-container.c
index eff9e0c459..ebc8021d7c 100644
--- a/arch/arm/mach-imx/image-container.c
+++ b/arch/arm/mach-imx/image-container.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <errno.h>
+#include <imx_container.h>
 #include <log.h>
 #include <malloc.h>
 #include <asm/io.h>
@@ -12,7 +13,6 @@
 #include <spi_flash.h>
 #include <spl.h>
 #include <nand.h>
-#include <asm/mach-imx/image.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/mach-imx/boot_mode.h>
 
diff --git a/arch/arm/mach-imx/imx8/ahab.c b/arch/arm/mach-imx/imx8/ahab.c
index 44ea63584a..994becccef 100644
--- a/arch/arm/mach-imx/imx8/ahab.c
+++ b/arch/arm/mach-imx/imx8/ahab.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <command.h>
 #include <errno.h>
+#include <imx_container.h>
 #include <log.h>
 #include <asm/global_data.h>
 #include <asm/io.h>
@@ -13,7 +14,6 @@
 #include <asm/mach-imx/sys_proto.h>
 #include <asm/arch-imx/cpu.h>
 #include <asm/arch/sys_proto.h>
-#include <asm/mach-imx/image.h>
 #include <console.h>
 #include <cpu_func.h>
 #include "u-boot/sha256.h"
diff --git a/arch/arm/mach-imx/parse-container.c b/arch/arm/mach-imx/parse-container.c
index d57f25df6d..c29cb15f55 100644
--- a/arch/arm/mach-imx/parse-container.c
+++ b/arch/arm/mach-imx/parse-container.c
@@ -7,9 +7,9 @@
 #include <common.h>
 #include <stdlib.h>
 #include <errno.h>
+#include <imx_container.h>
 #include <log.h>
 #include <spl.h>
-#include <asm/mach-imx/image.h>
 #ifdef CONFIG_AHAB_BOOT
 #include <asm/mach-imx/ahab.h>
 #endif
diff --git a/arch/arm/mach-imx/spl_imx_romapi.c b/arch/arm/mach-imx/spl_imx_romapi.c
index 80909aec3e..93d48e56ac 100644
--- a/arch/arm/mach-imx/spl_imx_romapi.c
+++ b/arch/arm/mach-imx/spl_imx_romapi.c
@@ -6,11 +6,11 @@
 #include <common.h>
 #include <errno.h>
 #include <image.h>
+#include <imx_container.h>
 #include <log.h>
 #include <asm/global_data.h>
 #include <linux/libfdt.h>
 #include <spl.h>
-#include <asm/mach-imx/image.h>
 #include <asm/arch/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -111,7 +111,8 @@ static int spl_romapi_load_image_seekable(struct spl_image_info *spl_image,
 		load.read = spl_romapi_read_seekable;
 		load.priv = &pagesize;
 		return spl_load_simple_fit(spl_image, &load, offset / pagesize, header);
-	} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+	} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
+		   valid_container_hdr((void *)header)) {
 		struct spl_load_info load;
 
 		memset(&load, 0, sizeof(load));
diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
index 02ad32a23e..67c7ae34a5 100644
--- a/common/spl/spl_mmc.c
+++ b/common/spl/spl_mmc.c
@@ -16,6 +16,7 @@
 #include <errno.h>
 #include <mmc.h>
 #include <image.h>
+#include <imx_container.h>
 
 static int mmc_load_legacy(struct spl_image_info *spl_image,
 			   struct spl_boot_device *bootdev,
@@ -108,7 +109,8 @@ int mmc_load_image_raw_sector(struct spl_image_info *spl_image,
 		load.bl_len = mmc->read_bl_len;
 		load.read = h_spl_load_read;
 		ret = spl_load_simple_fit(spl_image, &load, sector, header);
-	} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+	} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
+		   valid_container_hdr((void *)header)) {
 		struct spl_load_info load;
 
 		load.dev = mmc;
diff --git a/common/spl/spl_nand.c b/common/spl/spl_nand.c
index 6cc34004f4..07916bedbb 100644
--- a/common/spl/spl_nand.c
+++ b/common/spl/spl_nand.c
@@ -7,6 +7,7 @@
 #include <config.h>
 #include <fdt_support.h>
 #include <image.h>
+#include <imx_container.h>
 #include <log.h>
 #include <spl.h>
 #include <asm/io.h>
@@ -99,7 +100,8 @@ static int spl_nand_load_element(struct spl_image_info *spl_image,
 		load.bl_len = bl_len;
 		load.read = spl_nand_fit_read;
 		return spl_load_simple_fit(spl_image, &load, offset / bl_len, header);
-	} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+	} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
+		   valid_container_hdr((void *)header)) {
 		struct spl_load_info load;
 
 		load.dev = NULL;
diff --git a/common/spl/spl_nor.c b/common/spl/spl_nor.c
index c141a9ae62..dd44798207 100644
--- a/common/spl/spl_nor.c
+++ b/common/spl/spl_nor.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <image.h>
+#include <imx_container.h>
 #include <log.h>
 #include <spl.h>
 
@@ -102,7 +103,8 @@ static int spl_nor_load_image(struct spl_image_info *spl_image,
 					   (void *)header);
 	}
 #endif
-	if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+	if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
+	    valid_container_hdr((void *)header)) {
 		load.bl_len = 1;
 		load.read = spl_nor_load_read;
 		return spl_load_imx_container(spl_image, &load,
diff --git a/common/spl/spl_spi.c b/common/spl/spl_spi.c
index d69069a75b..1427c9478c 100644
--- a/common/spl/spl_spi.c
+++ b/common/spl/spl_spi.c
@@ -10,6 +10,7 @@
 
 #include <common.h>
 #include <image.h>
+#include <imx_container.h>
 #include <log.h>
 #include <spi.h>
 #include <spi_flash.h>
@@ -153,7 +154,8 @@ static int spl_spi_load_image(struct spl_image_info *spl_image,
 			err = spl_load_simple_fit(spl_image, &load,
 						  payload_offs,
 						  header);
-		} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+		} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
+			   valid_container_hdr((void *)header)) {
 			struct spl_load_info load;
 
 			load.dev = flash;
diff --git a/configs/deneb_defconfig b/configs/deneb_defconfig
index 82869e4e0f..ee2478aa0b 100644
--- a/configs/deneb_defconfig
+++ b/configs/deneb_defconfig
@@ -44,6 +44,8 @@ CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
 CONFIG_SPL_BSS_START_ADDR=0x128000
 CONFIG_SPL_BSS_MAX_SIZE=0x1000
 CONFIG_SPL_BOARD_INIT=y
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+# CONFIG_SPL_LEGACY_IMAGE_FORMAT is not set
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
 CONFIG_SPL_SYS_MALLOC=y
diff --git a/configs/giedi_defconfig b/configs/giedi_defconfig
index b56b736c43..5e403c90c8 100644
--- a/configs/giedi_defconfig
+++ b/configs/giedi_defconfig
@@ -44,6 +44,8 @@ CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
 CONFIG_SPL_BSS_START_ADDR=0x128000
 CONFIG_SPL_BSS_MAX_SIZE=0x1000
 CONFIG_SPL_BOARD_INIT=y
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+# CONFIG_SPL_LEGACY_IMAGE_FORMAT is not set
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
 CONFIG_SPL_SYS_MALLOC=y
diff --git a/configs/imx8qm_mek_defconfig b/configs/imx8qm_mek_defconfig
index b9083b0453..4c5206306e 100644
--- a/configs/imx8qm_mek_defconfig
+++ b/configs/imx8qm_mek_defconfig
@@ -38,6 +38,8 @@ CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
 CONFIG_SPL_BSS_START_ADDR=0x128000
 CONFIG_SPL_BSS_MAX_SIZE=0x1000
 CONFIG_SPL_BOARD_INIT=y
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+# CONFIG_SPL_LEGACY_IMAGE_FORMAT is not set
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
 CONFIG_SPL_SYS_MALLOC=y
diff --git a/configs/imx8qxp_mek_defconfig b/configs/imx8qxp_mek_defconfig
index f516b0b555..f312d3945f 100644
--- a/configs/imx8qxp_mek_defconfig
+++ b/configs/imx8qxp_mek_defconfig
@@ -38,6 +38,8 @@ CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
 CONFIG_SPL_BSS_START_ADDR=0x128000
 CONFIG_SPL_BSS_MAX_SIZE=0x1000
 CONFIG_SPL_BOARD_INIT=y
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+# CONFIG_SPL_LEGACY_IMAGE_FORMAT is not set
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
 CONFIG_SPL_SYS_MALLOC=y
diff --git a/drivers/usb/gadget/f_sdp.c b/drivers/usb/gadget/f_sdp.c
index 2b3a9c5fd4..ee9384fb37 100644
--- a/drivers/usb/gadget/f_sdp.c
+++ b/drivers/usb/gadget/f_sdp.c
@@ -34,6 +34,7 @@
 #include <spl.h>
 #include <image.h>
 #include <imximage.h>
+#include <imx_container.h>
 #include <watchdog.h>
 
 #define HID_REPORT_ID_MASK	0x000000ff
@@ -852,7 +853,8 @@ static int sdp_handle_in_ep(struct spl_image_info *spl_image,
 				return SDP_EXIT;
 			}
 #endif
-			if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+			if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
+			    valid_container_hdr((void *)header)) {
 				struct spl_load_info load;
 
 				load.dev = header;
diff --git a/arch/arm/include/asm/mach-imx/image.h b/include/imx_container.h
index 54cd684e35..54cd684e35 100644
--- a/arch/arm/include/asm/mach-imx/image.h
+++ b/include/imx_container.h