board: phytec: imx93: Add phyCORE-i.MX 93 support for all SOM variants

The phyCORE-i.MX 93 is available in various variants (e.g. different ram
sizes, eMMC HS400 yes/no). Enable hardware introspection for the
imx93-phyboard-segin_defconfig, so that during startup the SOM module
variant can be detected, and the hardware can be configured accordingly.
The resulting SPL and u-boot binary shall able to boot each
phyCORE-i.MX 93 module variant on each carrier board. Finally rename
imx93-phyboard-segin_defconfig to imx93-phycore_defconfig, to highlight
its SOM scope.

Signed-off-by: Christoph Stoidner <c.stoidner@phytec.de>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
Reviewed-by: Yannic Moog <y.moog@phytec.de>

arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi

@@ -2,15 +2,22 @@
 /*
  * Copyright (C) 2023 PHYTEC Messtechnik GmbH
  * Christoph Stoidner <c.stoidner@phytec.de>
+ * Copyright (C) 2024 PHYTEC Messtechnik GmbH
  *
  * Product homepage:
- * phyBOARD-Segin carrier board is reused for the i.MX93 design.
+   https://www.phytec.de/produkte/system-on-modules/phycore-imx-91-93/
- * https://www.phytec.eu/en/produkte/single-board-computer/phyboard-segin-imx6ul/
  */
 
 #include "imx93-u-boot.dtsi"
 
 / {
+	/*
+	 * The phyCORE-i.MX93 u-boot uses the imx93-phyboard-segin.dts as
+	 * reference, but does only make use of its SoM (phyCORE) contained
+	 * periphery.
+	 */
+	model = "PHYTEC phyCORE-i.MX93";
+
 	wdt-reboot {
 		compatible = "wdt-reboot";
 		wdt = <&wdog3>;

board/phytec/phycore_imx93/MAINTAINERS

@@ -9,5 +9,5 @@ F:      arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi
 F:      board/phytec/phycore_imx93/
 F:      board/phytec/common/imx93_som_detection.c
 F:      board/phytec/common/imx93_som_detection.h
-F:      configs/imx93-phyboard-segin_defconfig
+F:      configs/imx93-phycore_defconfig
 F:      include/configs/phycore_imx93.h

configs/imx93-phycore_defconfig

@@ -6,6 +6,7 @@ CONFIG_SYS_MALLOC_F_LEN=0x20000
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=2
+CONFIG_PHYTEC_SOM_DETECTION=y
 CONFIG_ENV_SOURCE_FILE="phycore_imx93"
 CONFIG_ENV_SIZE=0x10000
 CONFIG_ENV_OFFSET=0x700000
@@ -31,6 +32,7 @@ CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x88000000
 CONFIG_SYS_MEMTEST_START=0x80000000
 CONFIG_SYS_MEMTEST_END=0x90000000
 CONFIG_REMAKE_ELF=y
+# CONFIG_ANDROID_BOOT_IMAGE is not set
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_BOOTCOMMAND="mmc dev ${mmcdev}; if mmc rescan; then if run loadimage; then run mmcboot; else run netboot; fi; fi;"

doc/board/phytec/imx93-phycore.rst

@@ -1,9 +1,9 @@
 .. SPDX-License-Identifier: GPL-2.0+
 
-phyBOARD-Segin-i.MX93
+phyCORE-i.MX 93
-=====================
+===============
 
-U-Boot for the phyBOARD-Segin-i.MX93.
+U-Boot for the phyCORE-i.MX 93.
 
 Quick Start
 -----------
@@ -51,7 +51,7 @@ Build U-Boot
 
 .. code-block:: bash
 
-   $ make imx93-phyboard-segin_defconfig
+   $ make imx93-phycore_defconfig
    $ make
 
 Burn the flash.bin to MicroSD card offset 32KB:

doc/board/phytec/index.rst

@@ -7,7 +7,7 @@ PHYTEC
    :maxdepth: 2
 
    imx8mm-phygate-tauri-l
-   imx93-phyboard-segin
+   imx93-phycore
    phycore-am62x
    phycore-am64x
    phycore-imx8mm