arm: ls1021atwr: Add SD secure boot target

Add SD secure boot target for ls1021atwr.
Implement board specific spl_board_init() to setup CAAM stream ID and
corresponding stream ID in SMMU. Change the u-boot size defined by a
macro for copying the main U-Boot by SPL to also include the u-boot
Secure Boot header size as header is appended to u-boot image. So header
will also be copied from SD to DDR.

Reviewed-by: Aneesh Bansal <aneesh.bansal@nxp.com>
Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>

board/freescale/ls1021atwr/ls1021atwr.c

@@ -503,6 +503,13 @@ int board_init(void)
 	return 0;
 }
 
+#if defined(CONFIG_SPL_BUILD)
+void spl_board_init(void)
+{
+	ls102xa_smmu_stream_id_init();
+}
+#endif
+
 #ifdef CONFIG_BOARD_LATE_INIT
 int board_late_init(void)
 {

configs/ls1021atwr_sdcard_ifc_SECURE_BOOT_defconfig

@@ -0,0 +1,31 @@
+CONFIG_ARM=y
+CONFIG_TARGET_LS1021ATWR=y
+CONFIG_SPL=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,SPL_FSL_PBL,SD_BOOT,SECURE_BOOT"
+CONFIG_BOOTDELAY=0
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_GREPENV=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_FAT=y
+CONFIG_NETDEVICES=y
+CONFIG_E1000=y
+CONFIG_SYS_NS16550=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_OF_LIBFDT=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_RSA=y
+CONFIG_DM=y

include/configs/ls1021atwr.h

@@ -124,7 +124,18 @@
 #define CONFIG_SPL_SERIAL_SUPPORT
 #define CONFIG_SPL_MMC_SUPPORT
 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR		0xe8
+
+#ifdef CONFIG_SECURE_BOOT
+#define CONFIG_U_BOOT_HDR_SIZE				(16 << 10)
+/*
+ * HDR would be appended at end of image and copied to DDR along
+ * with U-Boot image.
+ */
+#define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS		(0x400 + \
+		(CONFIG_U_BOOT_HDR_SIZE / 512)
+#else
 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS		0x400
+#endif /* ifdef CONFIG_SECURE_BOOT */
 
 #define CONFIG_SPL_TEXT_BASE		0x10000000
 #define CONFIG_SPL_MAX_SIZE		0x1a000
@@ -137,7 +148,18 @@
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000
 #define CONFIG_SPL_BSS_START_ADDR	0x80100000
 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000
+
+#ifdef CONFIG_U_BOOT_HDR_SIZE
+/*
+ * HDR would be appended at end of image and copied to DDR along
+ * with U-Boot image. Here u-boot max. size is 512K. So if binary
+ * size increases then increase this size in case of secure boot as
+ * it uses raw u-boot image instead of fit image.
+ */
+#define CONFIG_SYS_MONITOR_LEN		(0x80000 + CONFIG_U_BOOT_HDR_SIZE)
+#else
 #define CONFIG_SYS_MONITOR_LEN		0x80000
+#endif /* ifdef CONFIG_U_BOOT_HDR_SIZE */
 #endif
 
 #ifdef CONFIG_QSPI_BOOT