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 c.stoidner@phytec.de
Cc: Mathieu Othacehe m.othacehe@gmail.com Cc: Christoph Stoidner c.stoidner@phytec.de Cc: Stefano Babic sbabic@denx.de Cc: Fabio Estevam festevam@gmail.com Cc: "NXP i.MX U-Boot Team" uboot-imx@nxp.com Cc: Tom Rini trini@konsulko.com Cc: Yannic Moog y.moog@phytec.de Cc: Primoz Fiser primoz.fiser@norik.com Cc: Andrej Picej andrej.picej@norik.com Cc: Wadim Egorov w.egorov@phytec.de
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-devicetre...
With that fixed,
Reviewed-by: Wadim Egorov w.egorov@phytec.de