board: siemens: iot2050: Split the build for PG1 and PG2

Due to different signature keys, the PG1 and the PG2 boards can no
longer use the same FSBL (tiboot3). This makes it impossible anyway to
maintaine a single flash.bin for both variants, so we can also split the
build.

A new target is added to indicates the build is for PG1 vs. PG2 boards.
Hence now the variants have separated defconfig files.

The runtime board_is_sr1() check does make no sense anymore, so remove
it and replace with build time check.

Documentation is updated accordingly. New binary artifacts are already
available via meta-iot2050.

Signed-off-by: Su Baocheng <[email protected]>
[Jan: refactor config option into targets, tweak some wordings]
Signed-off-by: Jan Kiszka <[email protected]>

6 files changed, 212 insertions, 74 deletions

diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
index 27058370ccc..3135ad04715 100644
--- a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
+++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) Siemens AG, 2020-2021
+ * Copyright (c) Siemens AG, 2020-2022
  *
  * Authors:
  *   Jan Kiszka <[email protected]>
@@ -17,7 +17,11 @@
 
 		blob-ext@0x000000 {
 			offset = <0x000000>;
-			filename = "tiboot3.bin";
+#ifdef CONFIG_TARGET_IOT2050_A53_PG1
+			filename = "seboot_pg1.bin";
+#else
+			filename = "seboot_pg2.bin";
+#endif
 			missing-msg = "iot2050-seboot";
 		};
 
@@ -43,42 +47,30 @@
 				};
 
 				fdt-iot2050-basic {
-					description = "k3-am6528-iot2050-basic.dtb";
+					description = "k3-am6528-iot2050-basic*.dtb";
 					type = "flat_dt";
 					arch = "arm64";
 					compression = "none";
 					blob {
+#ifdef CONFIG_TARGET_IOT2050_A53_PG1
 						filename = "arch/arm/dts/k3-am6528-iot2050-basic.dtb";
-					};
-				};
-
-				fdt-iot2050-basic-pg2 {
-					description = "k3-am6528-iot2050-basic-pg2.dtb";
-					type = "flat_dt";
-					arch = "arm64";
-					compression = "none";
-					blob {
+#else
 						filename = "arch/arm/dts/k3-am6528-iot2050-basic-pg2.dtb";
+#endif
 					};
 				};
 
 				fdt-iot2050-advanced {
-					description = "k3-am6548-iot2050-advanced.dtb";
+					description = "k3-am6548-iot2050-advanced*.dtb";
 					type = "flat_dt";
 					arch = "arm64";
 					compression = "none";
 					blob {
+#ifdef CONFIG_TARGET_IOT2050_A53_PG1
 						filename = "arch/arm/dts/k3-am6548-iot2050-advanced.dtb";
-					};
-				};
-
-				fdt-iot2050-advanced-pg2 {
-					description = "k3-am6548-iot2050-advanced-pg2.dtb";
-					type = "flat_dt";
-					arch = "arm64";
-					compression = "none";
-					blob {
+#else
 						filename = "arch/arm/dts/k3-am6548-iot2050-advanced-pg2.dtb";
+#endif
 					};
 				};
 
@@ -108,15 +100,6 @@
 #endif
 				};
 
-				conf-iot2050-basic-pg2 {
-					description = "iot2050-basic-pg2";
-					firmware = "u-boot";
-					fdt = "fdt-iot2050-basic-pg2";
-#ifdef CONFIG_WDT_K3_RTI_FW_FILE
-					loadables = "k3-rti-wdt-firmware";
-#endif
-				};
-
 				conf-iot2050-advanced {
 					description = "iot2050-advanced";
 					firmware = "u-boot";
@@ -125,15 +108,6 @@
 					loadables = "k3-rti-wdt-firmware";
 #endif
 				};
-
-				conf-iot2050-advanced-pg2 {
-					description = "iot2050-advanced-pg2";
-					firmware = "u-boot";
-					fdt = "fdt-iot2050-advanced-pg2";
-#ifdef CONFIG_WDT_K3_RTI_FW_FILE
-					loadables = "k3-rti-wdt-firmware";
-#endif
-				};
 			};
 		};
 
@@ -150,28 +124,24 @@
 			fill-byte = [00];
 		};
 
-		/* PG1 sysfw, basic variant */
+		/* sysfw, basic variant */
 		blob-ext@0x6c0000 {
 			offset = <0x6c0000>;
-			filename = "sysfw.itb";
+#ifdef CONFIG_TARGET_IOT2050_A53_PG1
+			filename = "sysfw_sr1.itb";
+#else
+			filename = "sysfw_sr2.itb";
+#endif
 			missing-msg = "iot2050-sysfw";
 		};
-		/* PG1 sysfw, advanced variant */
+		/* sysfw, advanced variant */
 		blob-ext@0x740000 {
 			offset = <0x740000>;
-			filename = "sysfw.itb_HS";
-			missing-msg = "iot2050-sysfw";
-		};
-		/* PG2 sysfw, basic variant */
-		blob-ext@0x7c0000 {
-			offset = <0x7c0000>;
-			filename = "sysfw_sr2.itb";
-			missing-msg = "iot2050-sysfw";
-		};
-		/* PG2 sysfw, advanced variant */
-		blob-ext@0x840000 {
-			offset = <0x840000>;
+#ifdef CONFIG_TARGET_IOT2050_A53_PG1
+			filename = "sysfw_sr1.itb_HS";
+#else
 			filename = "sysfw_sr2.itb_HS";
+#endif
 			missing-msg = "iot2050-sysfw";
 		};
 	};
diff --git a/board/siemens/iot2050/Kconfig b/board/siemens/iot2050/Kconfig
index 063142a43bf..a2b40881d11 100644
--- a/board/siemens/iot2050/Kconfig
+++ b/board/siemens/iot2050/Kconfig
@@ -1,20 +1,40 @@
 # SPDX-License-Identifier: GPL-2.0+
 #
-# Copyright (c) Siemens AG, 2018-2021
+# Copyright (c) Siemens AG, 2018-2022
 #
 # Authors:
 #   Le Jin <[email protected]>
 #   Jan Kiszka <[email protected]>
 
-config TARGET_IOT2050_A53
-	bool "IOT2050 running on A53"
+choice
+        prompt "Siemens SIMATIC IOT2050 boards"
+        optional
+
+config TARGET_IOT2050_A53_PG1
+	bool "IOT2050 PG1 running on A53"
+	select IOT2050_A53_COMMON
+	help
+	  This builds U-Boot for the Product Generation 1 (PG1) of the IOT2050
+	  devices.
+
+config TARGET_IOT2050_A53_PG2
+	bool "IOT2050 PG2 running on A53"
+	select IOT2050_A53_COMMON
+	help
+	  This builds U-Boot for the Product Generation 2 (PG2) of the IOT2050
+	  devices.
+
+endchoice
+
+config IOT2050_A53_COMMON
+	bool
 	select ARM64
 	select SOC_K3_AM654
 	select BOARD_LATE_INIT
 	select SYS_DISABLE_DCACHE_OPS
 	select BINMAN
 
-if TARGET_IOT2050_A53
+if IOT2050_A53_COMMON
 
 config SYS_BOARD
 	default "iot2050"
diff --git a/board/siemens/iot2050/board.c b/board/siemens/iot2050/board.c
index 8f4b0eae495..dbf893000a7 100644
--- a/board/siemens/iot2050/board.c
+++ b/board/siemens/iot2050/board.c
@@ -55,14 +55,6 @@ static bool board_is_advanced(void)
 		strstr((char *)info->name, "IOT2050-ADVANCED") != NULL;
 }
 
-static bool board_is_sr1(void)
-{
-	struct iot2050_info *info = IOT2050_INFO_DATA;
-
-	return info->magic == IOT2050_INFO_MAGIC &&
-		!strstr((char *)info->name, "-PG2");
-}
-
 static void remove_mmc1_target(void)
 {
 	char *boot_targets = strdup(env_get("boot_targets"));
@@ -109,12 +101,12 @@ void set_board_info_env(void)
 	}
 
 	if (board_is_advanced()) {
-		if (board_is_sr1())
+		if (IS_ENABLED(CONFIG_TARGET_IOT2050_A53_PG1))
 			fdtfile = "ti/k3-am6548-iot2050-advanced.dtb";
 		else
 			fdtfile = "ti/k3-am6548-iot2050-advanced-pg2.dtb";
 	} else {
-		if (board_is_sr1())
+		if (IS_ENABLED(CONFIG_TARGET_IOT2050_A53_PG1))
 			fdtfile = "ti/k3-am6528-iot2050-basic.dtb";
 		else
 			fdtfile = "ti/k3-am6528-iot2050-basic-pg2.dtb";
diff --git a/configs/iot2050_defconfig b/configs/iot2050_pg1_defconfig
index 57387edcb41..0440cf1c008 100644
--- a/configs/iot2050_defconfig
+++ b/configs/iot2050_pg1_defconfig
@@ -8,7 +8,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_SOC_K3_AM654=y
-CONFIG_TARGET_IOT2050_A53=y
+CONFIG_TARGET_IOT2050_A53_PG1=y
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80100000
 CONFIG_ENV_SIZE=0x20000
diff --git a/configs/iot2050_pg2_defconfig b/configs/iot2050_pg2_defconfig
new file mode 100644
index 00000000000..58aefac8301
--- /dev/null
+++ b/configs/iot2050_pg2_defconfig
@@ -0,0 +1,149 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_ARCH_K3=y
+CONFIG_SYS_MALLOC_LEN=0x2000000
+CONFIG_SYS_MALLOC_F_LEN=0x8000
+CONFIG_SPL_GPIO=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_SOC_K3_AM654=y
+CONFIG_TARGET_IOT2050_A53_PG2=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80100000
+CONFIG_ENV_SIZE=0x20000
+CONFIG_ENV_OFFSET=0x680000
+CONFIG_ENV_SECT_SIZE=0x20000
+CONFIG_DM_GPIO=y
+CONFIG_SPL_DM_SPI=y
+CONFIG_DEFAULT_DEVICE_TREE="k3-am6528-iot2050-basic-pg2"
+CONFIG_SPL_TEXT_BASE=0x80080000
+CONFIG_SYS_PROMPT="IOT2050> "
+CONFIG_SPL_SERIAL=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
+CONFIG_ENV_OFFSET_REDUND=0x6a0000
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80100000
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL_LOAD_FIT=y
+# CONFIG_USE_SPL_FIT_GENERATOR is not set
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_BOOTSTAGE=y
+CONFIG_SHOW_BOOT_PROGRESS=y
+CONFIG_SPL_SHOW_BOOT_PROGRESS=y
+CONFIG_CONSOLE_MUX=y
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_SPL_MAX_SIZE=0x58000
+CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
+CONFIG_SPL_BSS_START_ADDR=0x80a00000
+CONFIG_SPL_BSS_MAX_SIZE=0x80000
+CONFIG_SPL_BOARD_INIT=y
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SYS_SPL_MALLOC=y
+CONFIG_SYS_SPL_MALLOC_SIZE=0x800000
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x1400
+CONFIG_SPL_DM_MAILBOX=y
+CONFIG_SPL_DM_SPI_FLASH=y
+CONFIG_SPL_DM_RESET=y
+CONFIG_SPL_POWER_DOMAIN=y
+# CONFIG_SPL_SPI_FLASH_TINY is not set
+CONFIG_SPL_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x280000
+CONFIG_SYS_MAXARGS=64
+CONFIG_SYS_PBSIZE=1050
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_DFU=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_REMOTEPROC=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_TIME=y
+# CONFIG_ISO_PARTITION is not set
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_SPL_MULTI_DTB_FIT=y
+CONFIG_SPL_OF_LIST="k3-am65-iot2050-spl"
+CONFIG_SPL_MULTI_DTB_FIT_NO_COMPRESSION=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
+CONFIG_DM=y
+CONFIG_SPL_DM=y
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_SPL_REGMAP=y
+CONFIG_SPL_OF_TRANSLATE=y
+CONFIG_CLK=y
+CONFIG_SPL_CLK=y
+CONFIG_CLK_TI_SCI=y
+CONFIG_DFU_MMC=y
+CONFIG_DFU_RAM=y
+CONFIG_DFU_SF=y
+CONFIG_DMA_CHANNELS=y
+CONFIG_TI_K3_NAVSS_UDMA=y
+CONFIG_TI_SCI_PROTOCOL=y
+CONFIG_DA8XX_GPIO=y
+CONFIG_DM_PCA953X=y
+CONFIG_DM_I2C=y
+CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
+CONFIG_SYS_I2C_OMAP24XX=y
+CONFIG_LED=y
+CONFIG_SPL_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_SPL_LED_GPIO=y
+CONFIG_DM_MAILBOX=y
+CONFIG_K3_SEC_PROXY=y
+CONFIG_MMC_HS200_SUPPORT=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_ADMA=y
+CONFIG_MMC_SDHCI_AM654=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
+CONFIG_PCI=y
+CONFIG_PCI_KEYSTONE=y
+CONFIG_PHY=y
+CONFIG_AM654_PHY=y
+CONFIG_OMAP_USB2_PHY=y
+CONFIG_PINCTRL=y
+# CONFIG_PINCTRL_GENERIC is not set
+CONFIG_SPL_PINCTRL=y
+# CONFIG_SPL_PINCTRL_GENERIC is not set
+CONFIG_PINCTRL_SINGLE=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_TI_SCI_POWER_DOMAIN=y
+CONFIG_REMOTEPROC_TI_K3_R5F=y
+CONFIG_DM_RESET=y
+CONFIG_RESET_TI_SCI=y
+CONFIG_DM_SERIAL=y
+CONFIG_SOC_DEVICE=y
+CONFIG_SOC_DEVICE_TI_K3=y
+CONFIG_SOC_TI=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_CADENCE_QSPI=y
+CONFIG_SYSRESET=y
+CONFIG_SPL_SYSRESET=y
+CONFIG_SYSRESET_TI_SCI=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_GENERIC=y
+CONFIG_USB_KEYBOARD=y
+# CONFIG_WATCHDOG is not set
+# CONFIG_WATCHDOG_AUTOSTART is not set
+CONFIG_WDT=y
+CONFIG_WDT_K3_RTI=y
+CONFIG_WDT_K3_RTI_LOAD_FW=y
+CONFIG_OF_LIBFDT_OVERLAY=y
diff --git a/doc/board/siemens/iot2050.rst b/doc/board/siemens/iot2050.rst
index 7e97f817ce4..fd3431fa3f8 100644
--- a/doc/board/siemens/iot2050.rst
+++ b/doc/board/siemens/iot2050.rst
@@ -24,9 +24,10 @@ Binary dependencies can be found in
 https://github.com/siemens/meta-iot2050/tree/master/recipes-bsp/u-boot/files/prebuild.
 The following binaries from that source need to be present in the build folder:
 
- - tiboot3.bin
- - sysfw.itb
- - sysfw.itb_HS
+ - seboot_pg1.bin
+ - sysfw_sr1.itb
+ - sysfw_sr1.itb_HS
+ - seboot_pg2.bin
  - sysfw_sr2.itb
  - sysfw_sr2.itb_HS
 
@@ -57,7 +58,13 @@ U-Boot:
 
  $ export ATF=/path/to/bl31.bin
  $ export TEE=/path/to/tee-pager_v2.bin
- $ make iot2050_defconfig
+
+ # configure for PG1
+ $ make iot2050_pg1_defconfig
+
+ # or configure for PG2
+ $ make iot2050_pg2_defconfig
+
  $ make
 
 Flashing