Am 13.11.24 um 17:00 schrieb Christoph Stoidner:
The phyCORE-i.MX 93 is available in various variants. Relevant variant options for the spl/u-boot are: - with or without HS400 support for the eMMC - with 1GB ram chip, or 2GB ram chip The phyCORE's eeprom contains all information about the existing variant options. Add evaluation of the eeprom data to the spl/u-boot to enable/disable HS400 and to select the appropriate ram configuration at startup. Signed-off-by: Christoph Stoidner <[email protected]> --- Cc: Mathieu Othacehe <[email protected]> Cc: Christoph Stoidner <[email protected]> Cc: Stefano Babic <[email protected]> Cc: Fabio Estevam <[email protected]> Cc: "NXP i.MX U-Boot Team" <[email protected]> Cc: Tom Rini <[email protected]> Cc: Yannic Moog <[email protected]> Cc: Primoz Fiser <[email protected]> Cc: Andrej Picej <[email protected]> Cc: Wadim Egorov <[email protected]> --- Changes in v2: - encapsulate handling of feature flag VOLTAGE into own function - move definition of enum phytec_imx93_ddr_eeprom_code into header file arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi | 19 +++ arch/arm/mach-imx/imx9/Kconfig | 2 + arch/arm/mach-imx/imx9/soc.c | 2 +- board/phytec/common/Kconfig | 8 ++ board/phytec/common/Makefile | 1 + board/phytec/common/imx93_som_detection.c | 111 ++++++++++++++++++ board/phytec/common/imx93_som_detection.h | 51 ++++++++ board/phytec/phycore_imx93/Kconfig | 28 +++++ board/phytec/phycore_imx93/MAINTAINERS | 5 +- board/phytec/phycore_imx93/phycore-imx93.c | 51 ++++++++ board/phytec/phycore_imx93/spl.c | 48 ++++++++ 11 files changed, 324 insertions(+), 2 deletions(-) create mode 100644 board/phytec/common/imx93_som_detection.c create mode 100644 board/phytec/common/imx93_som_detection.h diff --git a/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi b/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi index 6897c91f4d..25c778bb07 100644 --- a/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi +++ b/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi @@ -305,4 +305,23 @@ }; }; }; + + eeprom@50 { + bootph-pre-ram; + bootph-some-ram; + compatible = "atmel,24c32"; + reg = <0x50>; + pagesize = <32>; + vcc-supply = <&buck4>; + }; + + eepromid@58 {
Please use a generic node name, https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
With that fixed, Reviewed-by: Wadim Egorov <[email protected]>
