board: phytec: imx93: Add eeprom-based hardware introspection
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>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
Reviewed-by: Yannic Moog <y.moog@phytec.de>
Tested-by: Primoz Fiser <primoz.fiser@norik.com>
diff --git a/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi b/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi
index 6897c91..702d86f 100644
--- a/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi
+++ b/arch/arm/dts/imx93-phyboard-segin-u-boot.dtsi
@@ -139,6 +139,13 @@
&usdhc1 {
bootph-pre-ram;
bootph-some-ram;
+ /*
+ * Remove pinctrl assignments once they are added to imx93-phycore-som.dtsi
+ */
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
};
&usdhc2 {
@@ -215,6 +222,48 @@
MX93_PAD_ENET2_RD3__GPIO4_IO27 0x31e
>;
};
+
+ /*
+ * Remove pinctrl_usdhc1_100mhz and pinctrl_usdhc1_200mhz once they
+ * are added to imx93-phycore-som.dtsi
+ */
+ /* need to config the SION for data and cmd pad, refer to ERR052021 */
+ pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+ bootph-pre-ram;
+ bootph-some-ram;
+ fsl,pins = <
+ MX93_PAD_SD1_CLK__USDHC1_CLK 0x17be
+ MX93_PAD_SD1_CMD__USDHC1_CMD 0x4000139e
+ MX93_PAD_SD1_DATA0__USDHC1_DATA0 0x4000138e
+ MX93_PAD_SD1_DATA1__USDHC1_DATA1 0x4000139e
+ MX93_PAD_SD1_DATA2__USDHC1_DATA2 0x400013be
+ MX93_PAD_SD1_DATA3__USDHC1_DATA3 0x4000139e
+ MX93_PAD_SD1_DATA4__USDHC1_DATA4 0x4000139e
+ MX93_PAD_SD1_DATA5__USDHC1_DATA5 0x4000139e
+ MX93_PAD_SD1_DATA6__USDHC1_DATA6 0x4000139e
+ MX93_PAD_SD1_DATA7__USDHC1_DATA7 0x4000139e
+ MX93_PAD_SD1_STROBE__USDHC1_STROBE 0x179e
+ >;
+ };
+
+ /* need to config the SION for data and cmd pad, refer to ERR052021 */
+ pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+ bootph-pre-ram;
+ bootph-some-ram;
+ fsl,pins = <
+ MX93_PAD_SD1_CLK__USDHC1_CLK 0x17be
+ MX93_PAD_SD1_CMD__USDHC1_CMD 0x4000139e
+ MX93_PAD_SD1_DATA0__USDHC1_DATA0 0x4000139e
+ MX93_PAD_SD1_DATA1__USDHC1_DATA1 0x400013be
+ MX93_PAD_SD1_DATA2__USDHC1_DATA2 0x400013be
+ MX93_PAD_SD1_DATA3__USDHC1_DATA3 0x400013be
+ MX93_PAD_SD1_DATA4__USDHC1_DATA4 0x400013be
+ MX93_PAD_SD1_DATA5__USDHC1_DATA5 0x400013be
+ MX93_PAD_SD1_DATA6__USDHC1_DATA6 0x400013be
+ MX93_PAD_SD1_DATA7__USDHC1_DATA7 0x400013be
+ MX93_PAD_SD1_STROBE__USDHC1_STROBE 0x179e
+ >;
+ };
};
&lpi2c3 {
@@ -305,4 +354,13 @@
};
};
};
+
+ eeprom@50 {
+ bootph-pre-ram;
+ bootph-some-ram;
+ compatible = "atmel,24c32";
+ reg = <0x50>;
+ pagesize = <32>;
+ vcc-supply = <&buck4>;
+ };
};
diff --git a/arch/arm/mach-imx/imx9/Kconfig b/arch/arm/mach-imx/imx9/Kconfig
index 5c10541..2465e31 100644
--- a/arch/arm/mach-imx/imx9/Kconfig
+++ b/arch/arm/mach-imx/imx9/Kconfig
@@ -45,6 +45,8 @@
bool "phycore_imx93"
select IMX93
select IMX9_LPDDR4X
+ select OF_BOARD_FIXUP
+ select OF_BOARD_SETUP
endchoice
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index 21e0e7d..6837ac8 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -634,7 +634,7 @@
return 0;
}
-#ifdef CONFIG_OF_BOARD_FIXUP
+#if defined(CONFIG_OF_BOARD_FIXUP) && !defined(CONFIG_TARGET_PHYCORE_IMX93)
#ifndef CONFIG_XPL_BUILD
int board_fix_fdt(void *fdt)
{