board: stmp32mp1: split board and SOC STM32MP15 configuration

Add a configuration file "stm32mp15_st_common.h" to handle the
STMicroelectronics boards configuration and rename stm32mp1.h to
"stm32mp15_common.h" to handle the generic STM32MP15x series configuration.

The configuration file "dh_stm32mp1.h" is also renamed to
"stm32mp15_dh_dhcom" for the configuration of board based on the
dhelectronics STM32MP15x SOM.

In the STMicroelectronics board configuration the default bootcmd
"bootcmd_stm32mp" is updated to only select the extlinux file found on
SD-Card on STM32MP15x EV1 for boot from NOR device.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

board/dhelectronics/dh_stm32mp1/Kconfig

@@ -7,7 +7,7 @@ config SYS_VENDOR
 	default "dhelectronics"
 
 config SYS_CONFIG_NAME
-	default "dh_stm32mp1"
+	default "stm32mp15_dh_dhsom"
 
 config ENV_SECT_SIZE
 	default 0x10000 if ENV_IS_IN_SPI_FLASH

board/dhelectronics/dh_stm32mp1/MAINTAINERS

@@ -6,4 +6,4 @@ F:	arch/arm/dts/stm32mp15xx-dhcom*
 F:	board/dhelectronics/dh_stm32mp1/
 F:	configs/stm32mp15_dhcom_basic_defconfig
 F:	configs/stm32mp15_dhcor_basic_defconfig
-F:	include/configs/stm32mp1.h
+F:	include/configs/stm32mp15_dh_dhsom.h

board/engicam/stm32mp1/Kconfig

@@ -7,6 +7,6 @@ config SYS_VENDOR
 	default "engicam"
 
 config SYS_CONFIG_NAME
-	default "stm32mp1"
+	default "stm32mp15_common"
 
 endif

board/st/stm32mp1/Kconfig

@@ -7,7 +7,7 @@ config SYS_VENDOR
 	default "st"
 
 config SYS_CONFIG_NAME
-	default "stm32mp1"
+	default "stm32mp15_st_common"
 
 source "board/st/common/Kconfig"
 endif

board/st/stm32mp1/MAINTAINERS

@@ -8,4 +8,5 @@ F:	board/st/stm32mp1/
 F:	configs/stm32mp15_defconfig
 F:	configs/stm32mp15_basic_defconfig
 F:	configs/stm32mp15_trusted_defconfig
-F:	include/configs/stm32mp1.h
+F:	include/configs/stm32mp15_common.h
+F:	include/configs/stm32mp15_st_common.h

include/configs/stm32mp15_common.h

@@ -5,8 +5,8 @@
  * Configuration settings for the STM32MP15x CPU
  */
 
-#ifndef __CONFIG_H
+#ifndef __CONFIG_STM32MP15_COMMMON_H
-#define __CONFIG_H
+#define __CONFIG_STM32MP15_COMMMON_H
 #include <linux/sizes.h>
 #include <asm/arch/stm32.h>
 
@@ -104,11 +104,11 @@
 	BOOT_TARGET_PXE(func)
 
 /*
- * bootcmd for stm32mp1:
+ * default bootcmd for stm32mp1:
  * for serial/usb: execute the stm32prog command
- * for mmc boot (eMMC, SD card), boot only on the same device
+ * for mmc boot (eMMC, SD card), distro boot on the same mmc device
- * for nand or spi-nand boot, boot with on ubifs partition on UBI partition
+ * for nand or spi-nand boot, distro boot with ubifs on UBI partition
- * for nor boot, use the default order
+ * for nor boot, use the default distro order in ${boot_targets}
  */
 #define STM32MP_BOOTCMD "bootcmd_stm32mp=" \
 	"echo \"Boot over ${boot_device}${boot_instance}!\";" \
@@ -126,7 +126,7 @@
 
 #ifdef CONFIG_FASTBOOT_CMD_OEM_FORMAT
 /* eMMC default partitions for fastboot command: oem format */
-#define PARTS_DEFAULT \
+#define STM32MP_PARTS_DEFAULT \
 	"partitions=" \
 	"name=ssbl,size=2M;" \
 	"name=bootfs,size=64MB,bootable;" \
@@ -134,9 +134,14 @@
 	"name=rootfs,size=746M;" \
 	"name=userfs,size=-\0"
 #else
-#define PARTS_DEFAULT
+#define STM32MP_PARTS_DEFAULT
 #endif
 
+#define STM32MP_EXTRA \
+	"altbootcmd=run bootcmd\0" \
+	"env_check=if env info -p -d -q; then env save; fi\0" \
+	"boot_net_usb_start=true\0"
+
 #include <config_distro_bootcmd.h>
 
 /*
@@ -144,21 +149,29 @@
  * 1M fdt, 1M script, 1M pxe and 1M for overlay
  * and the ramdisk at the end.
  */
+#define __KERNEL_ADDR_R     __stringify(0xc2000000)
+#define __FDT_ADDR_R        __stringify(0xc4000000)
+#define __SCRIPT_ADDR_R     __stringify(0xc4100000)
+#define __PXEFILE_ADDR_R    __stringify(0xc4200000)
+#define __FDTOVERLAY_ADDR_R __stringify(0xc4300000)
+#define __RAMDISK_ADDR_R    __stringify(0xc4400000)
+
+#define STM32MP_MEM_LAYOUT \
+	"kernel_addr_r=" __KERNEL_ADDR_R "\0" \
+	"fdt_addr_r=" __FDT_ADDR_R "\0" \
+	"scriptaddr=" __SCRIPT_ADDR_R "\0" \
+	"pxefile_addr_r=" __PXEFILE_ADDR_R "\0" \
+	"fdtoverlay_addr_r=" __FDTOVERLAY_ADDR_R "\0" \
+	"ramdisk_addr_r=" __RAMDISK_ADDR_R "\0"
+
 #define CONFIG_EXTRA_ENV_SETTINGS \
-	"kernel_addr_r=0xc2000000\0" \
+	STM32MP_MEM_LAYOUT \
-	"fdt_addr_r=0xc4000000\0" \
-	"scriptaddr=0xc4100000\0" \
-	"pxefile_addr_r=0xc4200000\0" \
-	"fdtoverlay_addr_r=0xc4300000\0" \
-	"ramdisk_addr_r=0xc4400000\0" \
-	"altbootcmd=run bootcmd\0" \
-	"env_check=if env info -p -d -q; then env save; fi\0" \
 	STM32MP_BOOTCMD \
-	PARTS_DEFAULT \
+	STM32MP_PARTS_DEFAULT \
 	BOOTENV \
-	"boot_net_usb_start=true\0"
+	STM32MP_EXTRA
 
 #endif /* ifndef CONFIG_SPL_BUILD */
 #endif /* ifdef CONFIG_DISTRO_DEFAULTS*/
 
-#endif /* __CONFIG_H */
+#endif /* __CONFIG_STM32MP15_COMMMON_H */

include/configs/stm32mp15_dh_dhsom.h

@@ -5,10 +5,10 @@
  * Configuration settings for the DH STM32MP15x SoMs
  */
 
-#ifndef __CONFIG_DH_STM32MP1_H__
+#ifndef __CONFIG_STM32MP15_DH_DHSOM_H__
-#define __CONFIG_DH_STM32MP1_H__
+#define __CONFIG_STM32MP15_DH_DHSOM_H__
 
-#include <configs/stm32mp1.h>
+#include <configs/stm32mp15_common.h>
 
 #define CONFIG_SPL_TARGET		"u-boot.itb"
 

include/configs/stm32mp15_st_common.h

@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
+/*
+ * Copyright (C) 2021, STMicroelectronics - All Rights Reserved
+ *
+ * Configuration settings for the STMicroelectonics STM32MP15x boards
+ */
+
+#ifndef __CONFIG_STM32MP15_ST_COMMON_H__
+#define __CONFIG_STM32MP15_ST_COMMON_H__
+
+#include <configs/stm32mp15_common.h>
+
+#ifdef CONFIG_EXTRA_ENV_SETTINGS
+/*
+ * default bootcmd for stm32mp1 STMicroelectronics boards:
+ * for serial/usb: execute the stm32prog command
+ * for mmc boot (eMMC, SD card), distro boot on the same mmc device
+ * for nand or spi-nand boot, distro boot with ubifs on UBI partition
+ * for nor boot, distro boot on SD card = mmc0 ONLY !
+ */
+#define ST_STM32MP1_BOOTCMD "bootcmd_stm32mp=" \
+	"echo \"Boot over ${boot_device}${boot_instance}!\";" \
+	"if test ${boot_device} = serial || test ${boot_device} = usb;" \
+	"then stm32prog ${boot_device} ${boot_instance}; " \
+	"else " \
+		"run env_check;" \
+		"if test ${boot_device} = mmc;" \
+		"then env set boot_targets \"mmc${boot_instance}\"; fi;" \
+		"if test ${boot_device} = nand ||" \
+		  " test ${boot_device} = spi-nand ;" \
+		"then env set boot_targets ubifs0; fi;" \
+		"if test ${boot_device} = nor;" \
+		"then env set boot_targets mmc0; fi;" \
+		"run distro_bootcmd;" \
+	"fi;\0"
+
+#undef CONFIG_EXTRA_ENV_SETTINGS
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	STM32MP_MEM_LAYOUT \
+	ST_STM32MP1_BOOTCMD \
+	STM32MP_PARTS_DEFAULT \
+	BOOTENV \
+	STM32MP_EXTRA
+
+#endif
+#endif