Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-09-21 07:01:57 +00:00
Code Issues Projects Releases Packages Wiki Activity

arm: dts: iot2050: Add support for M.2 variant

Browse source 
Add support for the M.2 board based on the iot2050 advanced board.
The board has two m.2 connectors, one is B-keyed, the other E-keyed.
The B-key slot can connect 5G/SSD devices, and E-key can be used for
WIFI/BT devices.

This variant is covered by PG2 firmware image.

Signed-off-by: chao zeng <chao.zeng@siemens.com>
[Jan: align DT to kernel, polish wording]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
chao zeng 2023-02-28 19:19:22 +01:00 committed by Tom Rini
parent 00e3ae729b
commit ed57c40783
4 changed files with 128 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/arm/dts/Makefile
View file

@ -1259,7 +1259,8 @@ dtb-$(CONFIG_SOC_K3_AM654) += \
k3-am6528-iot2050-basic.dtb \
k3-am6528-iot2050-basic-pg2.dtb \
k3-am6548-iot2050-advanced.dtb \
k3-am6548-iot2050-advanced-pg2.dtb
k3-am6548-iot2050-advanced-pg2.dtb \
k3-am6548-iot2050-advanced-m2.dtb
dtb-$(CONFIG_SOC_K3_J721E) += k3-j721e-common-proc-board.dtb \
k3-j721e-r5-common-proc-board.dtb \
k3-j7200-common-proc-board.dtb \

121
arch/arm/dts/k3-am6548-iot2050-advanced-m2.dts Normal file
View file

@ -0,0 +1,121 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) Siemens AG, 2018-2023
*
* Authors:
* Chao Zeng <chao.zeng@siemens.com>
* Jan Kiszka <jan.kiszka@siemens.com>
*
* AM6548-based (quad-core) IOT2050 M.2 variant (based on Advanced Product
* Generation 2), 2 GB RAM, 16 GB eMMC, USB-serial converter on connector X30
*
* Product homepage:
* https://new.siemens.com/global/en/products/automation/pc-based/iot-gateways/simatic-iot2050.html
*/
#include "k3-am6548-iot2050-advanced-common.dtsi"
#include "k3-am65-iot2050-common-pg2.dtsi"
/ {
compatible = "siemens,iot2050-advanced-m2", "ti,am654";
model = "SIMATIC IOT2050 Advanced M2";
};
&mcu_r5fss0 {
/* lock-step mode not supported on this board */
ti,cluster-mode = <0>;
};
&main_pmx0 {
main_m2_enable_pins_default: main-m2-enable-pins-default {
pinctrl-single,pins = <
AM65X_IOPAD(0x01c4, PIN_INPUT_PULLUP, 7) /* (AH13) GPIO1_17 */
>;
};
main_bkey_pcie_reset: main-bkey-pcie-reset {
pinctrl-single,pins = <
AM65X_IOPAD(0x01bc, PIN_OUTPUT_PULLUP, 7) /* (AG13) GPIO1_15 */
>;
};
main_pmx0_m2_config_pins_default: main-pmx0-m2-config-pins-default {
pinctrl-single,pins = <
AM65X_IOPAD(0x01c8, PIN_INPUT_PULLUP, 7) /* (AE13) GPIO1_18 */
AM65X_IOPAD(0x01cc, PIN_INPUT_PULLUP, 7) /* (AD13) GPIO1_19 */
>;
};
main_m2_pcie_mux_control: main-m2-pcie-mux-control {
pinctrl-single,pins = <
AM65X_IOPAD(0x0148, PIN_INPUT_PULLUP, 7) /* (AG22) GPIO0_82 */
AM65X_IOPAD(0x0160, PIN_INPUT_PULLUP, 7) /* (AE20) GPIO0_88 */
AM65X_IOPAD(0x0164, PIN_INPUT_PULLUP, 7) /* (AF19) GPIO0_89 */
>;
};
};
&main_pmx1 {
main_pmx1_m2_config_pins_default: main-pmx1-m2-config-pins-default {
pinctrl-single,pins = <
AM65X_IOPAD(0x0018, PIN_INPUT_PULLUP, 7) /* (B22) GPIO1_88 */
AM65X_IOPAD(0x001c, PIN_INPUT_PULLUP, 7) /* (C23) GPIO1_89 */
>;
};
};
&main_gpio0 {
pinctrl-names = "default";
pinctrl-0 = <
&main_m2_pcie_mux_control
&arduino_io_d4_to_d9_pins_default
>;
};
&main_gpio1 {
pinctrl-names = "default";
pinctrl-0 = <
&main_m2_enable_pins_default
&main_pmx0_m2_config_pins_default
&main_pmx1_m2_config_pins_default
&cp2102n_reset_pin_default
>;
};
/*
* Base configuration for B-key slot with PCIe x2, E-key with USB 2.0 only.
* Firmware switches to other modes via device tree overlays.
*/
&serdes0 {
assigned-clocks = <&k3_clks 153 4>, <&serdes0 AM654_SERDES_CMU_REFCLK>;
assigned-clock-parents = <&k3_clks 153 8>, <&k3_clks 153 4>;
};
&pcie0_rc {
pinctrl-names = "default";
pinctrl-0 = <&main_bkey_pcie_reset>;
num-lanes = <2>;
phys = <&serdes0 PHY_TYPE_PCIE 1>, <&serdes1 PHY_TYPE_PCIE 1>;
phy-names = "pcie-phy0","pcie-phy1";
reset-gpios = <&main_gpio1 15 GPIO_ACTIVE_HIGH>;
status = "okay";
};
&pcie1_rc {
status = "disabled";
};
&dwc3_0 {
assigned-clock-parents = <&k3_clks 151 4>, /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */
<&k3_clks 151 9>; /* set PIPE3_TXB_CLK to CLK_12M_RC/256 (for HS only) */
/delete-property/ phys;
/delete-property/ phy-names;
};
&usb0 {
maximum-speed = "high-speed";
/delete-property/ snps,dis-u1-entry-quirk;
/delete-property/ snps,dis-u2-entry-quirk;
};

2
configs/iot2050_pg2_defconfig
View file

@ -69,7 +69,7 @@ CONFIG_CMD_TIME=y
# CONFIG_ISO_PARTITION is not set
CONFIG_OF_CONTROL=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_OF_LIST="k3-am6528-iot2050-basic-pg2 k3-am6548-iot2050-advanced-pg2"
CONFIG_OF_LIST="k3-am6528-iot2050-basic-pg2 k3-am6548-iot2050-advanced-pg2 k3-am6548-iot2050-advanced-m2"
CONFIG_SPL_MULTI_DTB_FIT=y
CONFIG_SPL_OF_LIST="k3-am65-iot2050-spl"
CONFIG_SPL_MULTI_DTB_FIT_NO_COMPRESSION=y

6
doc/board/siemens/iot2050.rst
View file

@ -6,7 +6,9 @@ SIMATIC IOT2050 BASIC and ADVANCED
The SIMATIC IOT2050 is an open industrial IoT gateway that is using the TI
AM6528 GP (Basic variant) or the AM6548 HS (Advanced variant). The Advanced
variant is prepared for secure boot.
variant is prepared for secure boot. M.2 Variant also uses the AM6548 HS.
Instead of a MiniPCI connector, it comes with two M.2 connectors and can
support 5G/WIFI/BT applications or connect an SSD.
The IOT2050 starts only from OSPI. It loads a Siemens-provided bootloader
called SE-Boot for the MCU domain (R5F cores), then hands over to ATF and
@ -70,7 +72,7 @@ U-Boot:
# configure for PG1
$ make iot2050_pg1_defconfig
# or configure for PG2
# or configure for PG2 or the M.2 variant
$ make iot2050_pg2_defconfig
$ make