[PATCH v4 0/5] Add SIMATIC IOT2050 board support
This is the baseline support for the SIMATIC IOT2050 devices.
Changes in v4: - rebased - make rtd-wdt firmware a "loadable" inside U-Boot proper fit image, avoiding controversial embedding as object - improved mmc1 removal from boot_targets - fixed various build issues
Changes in v3: - rebased - addressed several checkpatch warnings - a few #ifdef -> IS_ENABLED conversions - comment marker for SPDK identifier in .S file - trailing whitespaces - factored out rti_wdt_load_fw (less #ifdef)
Changes in v2: - rebased - sync with upstream-accepted DT - add boot switch - include watchdog support
Allows to boot mainline 5.10 kernels, but not the original BSP-derived kernel we currently ship as reference. This is due to the TI sysfw ABI breakages between 2.x and 3.x. We will soon provide a transitional kernel that allows booting both firmware ABIs - as long as full upstream kernel support is work in progress.
Note that this baseline support lacks Ethernet drivers. We are working closely with TI to ensure that the to-be-upstreamed icssg-prueth driver will work both with new SR2.0 AM65x silicon as well as with SR1.0 which is used in the currently shipped IOT2050 devices.
A staging tree for complete IOT2050 support can be found at [1]. Full image integration is available via [2].
Jan
[1] https://github.com/siemens/u-boot/commits/jan/iot2050 [2] https://github.com/siemens/meta-iot2050
Jan Kiszka (5): arm: dts: Add IOT2050 device tree files board: siemens: Add support for SIMATIC IOT2050 devices arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry watchdog: rti_wdt: Add support for loading firmware iot2050: Enable watchdog support, but do not auto-start it
arch/arm/dts/Makefile | 7 +- arch/arm/dts/k3-am65-iot2050-boot-image.dtsi | 121 ++++ .../dts/k3-am65-iot2050-common-u-boot.dtsi | 103 +++ arch/arm/dts/k3-am65-iot2050-common.dtsi | 655 ++++++++++++++++++ arch/arm/dts/k3-am65-iot2050-spl.dts | 16 + arch/arm/dts/k3-am65-mcu.dtsi | 9 + arch/arm/dts/k3-am6528-iot2050-basic.dts | 67 ++ arch/arm/dts/k3-am6548-iot2050-advanced.dts | 66 ++ arch/arm/mach-k3/Kconfig | 1 + board/siemens/iot2050/Kconfig | 32 + board/siemens/iot2050/MAINTAINERS | 8 + board/siemens/iot2050/Makefile | 10 + board/siemens/iot2050/README | 65 ++ board/siemens/iot2050/board.c | 284 ++++++++ board/siemens/iot2050/config.mk | 8 + configs/iot2050_defconfig | 138 ++++ drivers/watchdog/Kconfig | 20 + drivers/watchdog/rti_wdt.c | 88 +++ include/configs/iot2050.h | 67 ++ 19 files changed, 1764 insertions(+), 1 deletion(-) create mode 100644 arch/arm/dts/k3-am65-iot2050-boot-image.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-common.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-spl.dts create mode 100644 arch/arm/dts/k3-am6528-iot2050-basic.dts create mode 100644 arch/arm/dts/k3-am6548-iot2050-advanced.dts create mode 100644 board/siemens/iot2050/Kconfig create mode 100644 board/siemens/iot2050/MAINTAINERS create mode 100644 board/siemens/iot2050/Makefile create mode 100644 board/siemens/iot2050/README create mode 100644 board/siemens/iot2050/board.c create mode 100644 board/siemens/iot2050/config.mk create mode 100644 configs/iot2050_defconfig create mode 100644 include/configs/iot2050.h
From: Jan Kiszka jan.kiszka@siemens.com
Prepares for the addition of the IOT2050 board which is based on the TI AM65x. The board comes in two variants, Basic and Advanced, so there are separate dts files. Furthermore, the SPL has its own device tree.
Based on original board support by Le Jin, Gao Nian and Chao Zeng.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- arch/arm/dts/Makefile | 7 +- arch/arm/dts/k3-am65-iot2050-boot-image.dtsi | 105 +++ .../dts/k3-am65-iot2050-common-u-boot.dtsi | 103 +++ arch/arm/dts/k3-am65-iot2050-common.dtsi | 655 ++++++++++++++++++ arch/arm/dts/k3-am65-iot2050-spl.dts | 16 + arch/arm/dts/k3-am6528-iot2050-basic.dts | 67 ++ arch/arm/dts/k3-am6548-iot2050-advanced.dts | 66 ++ 7 files changed, 1018 insertions(+), 1 deletion(-) create mode 100644 arch/arm/dts/k3-am65-iot2050-boot-image.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-common.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-spl.dts create mode 100644 arch/arm/dts/k3-am6528-iot2050-basic.dts create mode 100644 arch/arm/dts/k3-am6548-iot2050-advanced.dts
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 537c96bf5b..08aa3c09f8 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -1084,7 +1084,12 @@ dtb-$(CONFIG_STM32MP15x) += \ stm32mp15xx-dhcom-picoitx.dtb \ stm32mp15xx-dhcor-avenger96.dtb
-dtb-$(CONFIG_SOC_K3_AM6) += k3-am654-base-board.dtb k3-am654-r5-base-board.dtb +dtb-$(CONFIG_SOC_K3_AM6) += \ + k3-am654-base-board.dtb \ + k3-am654-r5-base-board.dtb \ + k3-am65-iot2050-spl.dtb \ + k3-am6528-iot2050-basic.dtb \ + k3-am6548-iot2050-advanced.dtb dtb-$(CONFIG_SOC_K3_J721E) += k3-j721e-common-proc-board.dtb \ k3-j721e-r5-common-proc-board.dtb \ k3-j7200-common-proc-board.dtb \ diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi new file mode 100644 index 0000000000..61745c6c23 --- /dev/null +++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) Siemens AG, 2020-2021 + * + * Authors: + * Jan Kiszka jan.kiszk@siemens.com + */ + +#include <config.h> + +/ { + binman { + filename = "flash.bin"; + pad-byte = <0xff>; + size = <0x800000>; + + blob-ext@0x000000 { + offset = <0x000000>; + filename = "tiboot3.bin"; + }; + + blob@0x080000 { + offset = <0x080000>; + filename = "tispl.bin"; + }; + + fit@0x280000 { + description = "U-Boot for IOT2050"; + offset = <0x280000>; + images { + u-boot { + description = "U-Boot"; + type = "standalone"; + arch = "arm64"; + os = "u-boot"; + compression = "none"; + load = <0x80800000>; + entry = <0x80800000>; + u-boot-nodtb { + }; + }; + + fdt-iot2050-basic { + description = "k3-am6528-iot2050-basic.dtb"; + type = "flat_dt"; + arch = "arm64"; + compression = "none"; + blob { + filename = "arch/arm/dts/k3-am6528-iot2050-basic.dtb"; + }; + }; + + fdt-iot2050-advanced { + description = "k3-am6548-iot2050-advanced.dtb"; + type = "flat_dt"; + arch = "arm64"; + compression = "none"; + blob { + filename = "arch/arm/dts/k3-am6548-iot2050-advanced.dtb"; + }; + }; + }; + + configurations { + default = "conf-iot2050-basic"; + + conf-iot2050-basic { + description = "iot2050-basic"; + firmware = "u-boot"; + fdt = "fdt-iot2050-basic"; + }; + + conf-iot2050-advanced { + description = "iot2050-advanced"; + firmware = "u-boot"; + fdt = "fdt-iot2050-advanced"; + }; + }; + }; + + /* primary env */ + fill@0x680000 { + offset = <0x680000>; + size = <0x020000>; + fill-byte = [00]; + }; + /* secondary env */ + fill@0x6a0000 { + offset = <0x6a0000>; + size = <0x020000>; + fill-byte = [00]; + }; + + /* Sysfw Basic */ + blob-ext@0x6c0000 { + offset = <0x6c0000>; + filename = "sysfw.itb"; + }; + /* Sysfw Advanced */ + blob-ext@0x740000 { + offset = <0x740000>; + filename = "sysfw.itb_HS"; + }; + }; +}; diff --git a/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi b/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi new file mode 100644 index 0000000000..cb5d8532a0 --- /dev/null +++ b/arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi @@ -0,0 +1,103 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Le Jin le.jin@siemens.com + * Jan Kiszka jan.kiszk@siemens.com + * + * Common U-Boot bits of the IOT2050 Basic and Advanced variants + */ + +/dts-v1/; + +#include "k3-am65-iot2050-common.dtsi" + +/ { + aliases { + spi0 = &ospi0; + }; + + leds { + u-boot,dm-spl; + status-led-red { + u-boot,dm-spl; + }; + status-led-green { + u-boot,dm-spl; + }; + }; +}; + +&cbass_mcu { + u-boot,dm-spl; +}; + +&cbass_wakeup { + u-boot,dm-spl; +}; + +&cbass_main { + u-boot,dm-spl; + main-navss { + u-boot,dm-spl; + }; +}; + +&wkup_pmx0 { + u-boot,dm-spl; + mcu-fss0-ospi0-pins-default { + u-boot,dm-spl; + }; +}; + +&main_pmx0 { + u-boot,dm-spl; + main-uart1-pins-default { + u-boot,dm-spl; + }; +}; + +&main_uart1 { + u-boot,dm-spl; + current-speed = <115200>; +}; + +&wkup_gpio0 { + u-boot,dm-spl; +}; + +&ospi0 { + u-boot,dm-spl; + flash@0 { + u-boot,dm-spl; + }; +}; + +&secure_proxy_main { + u-boot,dm-spl; +}; + +&dmsc { + u-boot,dm-spl; + k3_sysreset: sysreset-controller { + compatible = "ti,sci-sysreset"; + u-boot,dm-spl; + }; +}; + +&k3_pds { + u-boot,dm-spl; +}; + +&k3_clks { + u-boot,dm-spl; +}; + +&k3_reset { + u-boot,dm-spl; +}; + +&fss { + u-boot,dm-spl; +}; diff --git a/arch/arm/dts/k3-am65-iot2050-common.dtsi b/arch/arm/dts/k3-am65-iot2050-common.dtsi new file mode 100644 index 0000000000..de763ca925 --- /dev/null +++ b/arch/arm/dts/k3-am65-iot2050-common.dtsi @@ -0,0 +1,655 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Le Jin le.jin@siemens.com + * Jan Kiszka jan.kiszk@siemens.com + * + * Common bits of the IOT2050 Basic and Advanced variants + */ + +/dts-v1/; + +#include "k3-am654.dtsi" +#include <dt-bindings/phy/phy.h> + +/ { + aliases { + spi0 = &mcu_spi0; + }; + + chosen { + stdout-path = "serial3:115200n8"; + bootargs = "earlycon=ns16550a,mmio32,0x02810000"; + }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + secure_ddr: secure-ddr@9e800000 { + reg = <0 0x9e800000 0 0x01800000>; /* for OP-TEE */ + alignment = <0x1000>; + no-map; + }; + + mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 { + compatible = "shared-dma-pool"; + reg = <0 0xa0000000 0 0x100000>; + no-map; + }; + + mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 { + compatible = "shared-dma-pool"; + reg = <0 0xa0100000 0 0xf00000>; + no-map; + }; + + mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 { + compatible = "shared-dma-pool"; + reg = <0 0xa1000000 0 0x100000>; + no-map; + }; + + mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 { + compatible = "shared-dma-pool"; + reg = <0 0xa1100000 0 0xf00000>; + no-map; + }; + + rtos_ipc_memory_region: ipc-memories@a2000000 { + reg = <0x00 0xa2000000 0x00 0x00200000>; + alignment = <0x1000>; + no-map; + }; + }; + + leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&leds_pins_default>; + + status-led-red { + gpios = <&wkup_gpio0 32 GPIO_ACTIVE_HIGH>; + panic-indicator; + }; + + status-led-green { + gpios = <&wkup_gpio0 24 GPIO_ACTIVE_HIGH>; + }; + + user-led1-red { + gpios = <&pcal9535_3 14 GPIO_ACTIVE_HIGH>; + }; + + user-led1-green { + gpios = <&pcal9535_2 15 GPIO_ACTIVE_HIGH>; + }; + + user-led2-red { + gpios = <&wkup_gpio0 17 GPIO_ACTIVE_HIGH>; + }; + + user-led2-green { + gpios = <&wkup_gpio0 22 GPIO_ACTIVE_HIGH>; + }; + }; + + dp_refclk: clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <19200000>; + }; +}; + +&wkup_pmx0 { + wkup_i2c0_pins_default: wkup-i2c0-pins-default { + pinctrl-single,pins = < + /* (AC7) WKUP_I2C0_SCL */ + AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) + /* (AD6) WKUP_I2C0_SDA */ + AM65X_WKUP_IOPAD(0x00e4, PIN_INPUT, 0) + >; + }; + + mcu_i2c0_pins_default: mcu-i2c0-pins-default { + pinctrl-single,pins = < + /* (AD8) MCU_I2C0_SCL */ + AM65X_WKUP_IOPAD(0x00e8, PIN_INPUT, 0) + /* (AD7) MCU_I2C0_SDA */ + AM65X_WKUP_IOPAD(0x00ec, PIN_INPUT, 0) + >; + }; + + arduino_i2c_aio_switch_pins_default: arduino-i2c-aio-switch-pins-default { + pinctrl-single,pins = < + /* (R2) WKUP_GPIO0_21 */ + AM65X_WKUP_IOPAD(0x0024, PIN_OUTPUT, 7) + >; + }; + + push_button_pins_default: push-button-pins-default { + pinctrl-single,pins = < + /* (T1) MCU_OSPI1_CLK.WKUP_GPIO0_25 */ + AM65X_WKUP_IOPAD(0x0034, PIN_INPUT, 7) + >; + }; + + arduino_uart_pins_default: arduino-uart-pins-default { + pinctrl-single,pins = < + /* (P4) MCU_UART0_RXD */ + AM65X_WKUP_IOPAD(0x0044, PIN_INPUT, 4) + /* (P5) MCU_UART0_TXD */ + AM65X_WKUP_IOPAD(0x0048, PIN_OUTPUT, 4) + >; + }; + + arduino_io_d2_to_d3_pins_default: arduino-io-d2-to-d3-pins-default { + pinctrl-single,pins = < + /* (P1) WKUP_GPIO0_31 */ + AM65X_WKUP_IOPAD(0x004C, PIN_OUTPUT, 7) + /* (N3) WKUP_GPIO0_33 */ + AM65X_WKUP_IOPAD(0x0054, PIN_OUTPUT, 7) + >; + }; + + arduino_io_oe_pins_default: arduino-io-oe-pins-default { + pinctrl-single,pins = < + /* (N4) WKUP_GPIO0_34 */ + AM65X_WKUP_IOPAD(0x0058, PIN_OUTPUT, 7) + /* (M2) WKUP_GPIO0_36 */ + AM65X_WKUP_IOPAD(0x0060, PIN_OUTPUT, 7) + /* (M3) WKUP_GPIO0_37 */ + AM65X_WKUP_IOPAD(0x0064, PIN_OUTPUT, 7) + /* (M4) WKUP_GPIO0_38 */ + AM65X_WKUP_IOPAD(0x0068, PIN_OUTPUT, 7) + /* (M1) WKUP_GPIO0_41 */ + AM65X_WKUP_IOPAD(0x0074, PIN_OUTPUT, 7) + >; + }; + + mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-pins-default { + pinctrl-single,pins = < + /* (V1) MCU_OSPI0_CLK */ + AM65X_WKUP_IOPAD(0x0000, PIN_OUTPUT, 0) + /* (U2) MCU_OSPI0_DQS */ + AM65X_WKUP_IOPAD(0x0008, PIN_INPUT, 0) + /* (U4) MCU_OSPI0_D0 */ + AM65X_WKUP_IOPAD(0x000c, PIN_INPUT, 0) + /* (U5) MCU_OSPI0_D1 */ + AM65X_WKUP_IOPAD(0x0010, PIN_INPUT, 0) + /* (R4) MCU_OSPI0_CSn0 */ + AM65X_WKUP_IOPAD(0x002c, PIN_OUTPUT, 0) + >; + }; + + db9_com_mode_pins_default: db9-com-mode-pins-default { + pinctrl-single,pins = < + /* (AD3) WKUP_GPIO0_5, used as uart0 mode 0 */ + AM65X_WKUP_IOPAD(0x00c4, PIN_OUTPUT, 7) + /* (AC3) WKUP_GPIO0_4, used as uart0 mode 1 */ + AM65X_WKUP_IOPAD(0x00c0, PIN_OUTPUT, 7) + /* (AC1) WKUP_GPIO0_7, used as uart0 term */ + AM65X_WKUP_IOPAD(0x00cc, PIN_OUTPUT, 7) + /* (AC2) WKUP_GPIO0_6, used as uart0 en */ + AM65X_WKUP_IOPAD(0x00c8, PIN_OUTPUT, 7) + >; + }; + + leds_pins_default: leds-pins-default { + pinctrl-single,pins = < + /* (T2) WKUP_GPIO0_17, used as user led1 red */ + AM65X_WKUP_IOPAD(0x0014, PIN_OUTPUT, 7) + /* (R3) WKUP_GPIO0_22, used as user led1 green */ + AM65X_WKUP_IOPAD(0x0028, PIN_OUTPUT, 7) + /* (R5) WKUP_GPIO0_24, used as status led red */ + AM65X_WKUP_IOPAD(0x0030, PIN_OUTPUT, 7) + /* (N2) WKUP_GPIO0_32, used as status led green */ + AM65X_WKUP_IOPAD(0x0050, PIN_OUTPUT, 7) + >; + }; + + mcu_spi0_pins_default: mcu-spi0-pins-default { + pinctrl-single,pins = < + /* (Y1) MCU_SPI0_CLK */ + AM65X_WKUP_IOPAD(0x0090, PIN_INPUT, 0) + /* (Y3) MCU_SPI0_D0 */ + AM65X_WKUP_IOPAD(0x0094, PIN_INPUT, 0) + /* (Y2) MCU_SPI0_D1 */ + AM65X_WKUP_IOPAD(0x0098, PIN_INPUT, 0) + /* (Y4) MCU_SPI0_CS0 */ + AM65X_WKUP_IOPAD(0x009c, PIN_OUTPUT, 0) + >; + }; + + minipcie_pins_default: minipcie-pins-default { + pinctrl-single,pins = < + /* (P2) MCU_OSPI1_DQS.WKUP_GPIO0_27 */ + AM65X_WKUP_IOPAD(0x003C, PIN_OUTPUT, 7) + >; + }; +}; + +&main_pmx0 { + main_uart1_pins_default: main-uart1-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0174, PIN_INPUT, 6) /* (AE23) UART1_RXD */ + AM65X_IOPAD(0x014c, PIN_OUTPUT, 6) /* (AD23) UART1_TXD */ + AM65X_IOPAD(0x0178, PIN_INPUT, 6) /* (AD22) UART1_CTSn */ + AM65X_IOPAD(0x017c, PIN_OUTPUT, 6) /* (AC21) UART1_RTSn */ + >; + }; + + main_i2c3_pins_default: main-i2c3-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x01c0, PIN_INPUT, 2) /* (AF13) I2C3_SCL */ + AM65X_IOPAD(0x01d4, PIN_INPUT, 2) /* (AG12) I2C3_SDA */ + >; + }; + + main_mmc1_pins_default: main-mmc1-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x02d4, PIN_INPUT_PULLDOWN, 0) /* (C27) MMC1_CLK */ + AM65X_IOPAD(0x02d8, PIN_INPUT_PULLUP, 0) /* (C28) MMC1_CMD */ + AM65X_IOPAD(0x02d0, PIN_INPUT_PULLUP, 0) /* (D28) MMC1_DAT0 */ + AM65X_IOPAD(0x02cc, PIN_INPUT_PULLUP, 0) /* (E27) MMC1_DAT1 */ + AM65X_IOPAD(0x02c8, PIN_INPUT_PULLUP, 0) /* (D26) MMC1_DAT2 */ + AM65X_IOPAD(0x02c4, PIN_INPUT_PULLUP, 0) /* (D27) MMC1_DAT3 */ + AM65X_IOPAD(0x02dc, PIN_INPUT_PULLUP, 0) /* (B24) MMC1_SDCD */ + AM65X_IOPAD(0x02e0, PIN_INPUT_PULLUP, 0) /* (C24) MMC1_SDWP */ + >; + }; + + usb0_pins_default: usb0-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x02bc, PIN_OUTPUT, 0) /* (AD9) USB0_DRVVBUS */ + >; + }; + + usb1_pins_default: usb1-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x02c0, PIN_OUTPUT, 0) /* (AC8) USB1_DRVVBUS */ + >; + }; + + arduino_io_d4_to_d9_pins_default: arduino-io-d4-to-d9-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0084, PIN_OUTPUT, 7) /* (AG18) GPIO0_33 */ + AM65X_IOPAD(0x008C, PIN_OUTPUT, 7) /* (AF17) GPIO0_35 */ + AM65X_IOPAD(0x0098, PIN_OUTPUT, 7) /* (AH16) GPIO0_38 */ + AM65X_IOPAD(0x00AC, PIN_OUTPUT, 7) /* (AH15) GPIO0_43 */ + AM65X_IOPAD(0x00C0, PIN_OUTPUT, 7) /* (AG15) GPIO0_48 */ + AM65X_IOPAD(0x00CC, PIN_OUTPUT, 7) /* (AD15) GPIO0_51 */ + >; + }; + + dss_vout1_pins_default: dss-vout1-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0000, PIN_OUTPUT, 1) /* VOUT1_DATA0 */ + AM65X_IOPAD(0x0004, PIN_OUTPUT, 1) /* VOUT1_DATA1 */ + AM65X_IOPAD(0x0008, PIN_OUTPUT, 1) /* VOUT1_DATA2 */ + AM65X_IOPAD(0x000c, PIN_OUTPUT, 1) /* VOUT1_DATA3 */ + AM65X_IOPAD(0x0010, PIN_OUTPUT, 1) /* VOUT1_DATA4 */ + AM65X_IOPAD(0x0014, PIN_OUTPUT, 1) /* VOUT1_DATA5 */ + AM65X_IOPAD(0x0018, PIN_OUTPUT, 1) /* VOUT1_DATA6 */ + AM65X_IOPAD(0x001c, PIN_OUTPUT, 1) /* VOUT1_DATA7 */ + AM65X_IOPAD(0x0020, PIN_OUTPUT, 1) /* VOUT1_DATA8 */ + AM65X_IOPAD(0x0024, PIN_OUTPUT, 1) /* VOUT1_DATA9 */ + AM65X_IOPAD(0x0028, PIN_OUTPUT, 1) /* VOUT1_DATA10 */ + AM65X_IOPAD(0x002c, PIN_OUTPUT, 1) /* VOUT1_DATA11 */ + AM65X_IOPAD(0x0030, PIN_OUTPUT, 1) /* VOUT1_DATA12 */ + AM65X_IOPAD(0x0034, PIN_OUTPUT, 1) /* VOUT1_DATA13 */ + AM65X_IOPAD(0x0038, PIN_OUTPUT, 1) /* VOUT1_DATA14 */ + AM65X_IOPAD(0x003c, PIN_OUTPUT, 1) /* VOUT1_DATA15 */ + AM65X_IOPAD(0x0040, PIN_OUTPUT, 1) /* VOUT1_DATA16 */ + AM65X_IOPAD(0x0044, PIN_OUTPUT, 1) /* VOUT1_DATA17 */ + AM65X_IOPAD(0x0048, PIN_OUTPUT, 1) /* VOUT1_DATA18 */ + AM65X_IOPAD(0x004c, PIN_OUTPUT, 1) /* VOUT1_DATA19 */ + AM65X_IOPAD(0x0050, PIN_OUTPUT, 1) /* VOUT1_DATA20 */ + AM65X_IOPAD(0x0054, PIN_OUTPUT, 1) /* VOUT1_DATA21 */ + AM65X_IOPAD(0x0058, PIN_OUTPUT, 1) /* VOUT1_DATA22 */ + AM65X_IOPAD(0x005c, PIN_OUTPUT, 1) /* VOUT1_DATA23 */ + AM65X_IOPAD(0x0060, PIN_OUTPUT, 1) /* VOUT1_VSYNC */ + AM65X_IOPAD(0x0064, PIN_OUTPUT, 1) /* VOUT1_HSYNC */ + AM65X_IOPAD(0x0068, PIN_OUTPUT, 1) /* VOUT1_PCLK */ + AM65X_IOPAD(0x006c, PIN_OUTPUT, 1) /* VOUT1_DE */ + >; + }; + + dp_pins_default: dp-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0078, PIN_OUTPUT, 7) /* (AF18) DP rst_n */ + >; + }; + + main_i2c2_pins_default: main-i2c2-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0074, PIN_INPUT, 5) /* (T27) I2C2_SCL */ + AM65X_IOPAD(0x0070, PIN_INPUT, 5) /* (R25) I2C2_SDA */ + >; + }; +}; + +&main_pmx1 { + main_i2c0_pins_default: main-i2c0-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0000, PIN_INPUT, 0) /* (D20) I2C0_SCL */ + AM65X_IOPAD(0x0004, PIN_INPUT, 0) /* (C21) I2C0_SDA */ + >; + }; + + main_i2c1_pins_default: main-i2c1-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0008, PIN_INPUT, 0) /* (B21) I2C1_SCL */ + AM65X_IOPAD(0x000c, PIN_INPUT, 0) /* (E21) I2C1_SDA */ + >; + }; + + ecap0_pins_default: ecap0-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x0010, PIN_INPUT, 0) /* (D21) ECAP0_IN_APWM_OUT */ + >; + }; +}; + +&wkup_uart0 { + /* Wakeup UART is used by System firmware */ + status = "reserved"; +}; + +&main_uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_uart1_pins_default>; +}; + +&main_uart2 { + status = "disabled"; +}; + +&mcu_uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&arduino_uart_pins_default>; +}; + +&main_gpio0 { + pinctrl-names = "default"; + pinctrl-0 = <&arduino_io_d4_to_d9_pins_default>; + gpio-line-names = + "main_gpio0-base", "", "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", "", "", + "", "", "", "IO4", "", "IO5", "", "", "IO6", "", + "", "", "", "IO7", "", "", "", "", "IO8", "", + "", "IO9"; +}; + +&wkup_gpio0 { + pinctrl-names = "default"; + pinctrl-0 = < + &arduino_io_d2_to_d3_pins_default + &arduino_i2c_aio_switch_pins_default + &arduino_io_oe_pins_default + &push_button_pins_default + &db9_com_mode_pins_default + >; + gpio-line-names = + /* 0..9 */ + "wkup_gpio0-base", "", "", "", "UART0-mode1", "UART0-mode0", + "UART0-enable", "UART0-terminate", "", "WIFI-disable", + /* 10..19 */ + "", "", "", "", "", "", "", "", "", "", + /* 20..29 */ + "", "A4A5-I2C-mux", "", "", "", "USER-button", "", "", "","IO0", + /* 30..39 */ + "IO1", "IO2", "", "IO3", "IO17-direction", "A5", + "IO16-direction", "IO15-direction", "IO14-direction", "A3", + /* 40..49 */ + "", "IO18-direction", "A4", "A2", "A1", "A0", "", "", "IO13", + "IO11", + /* 50..51 */ + "IO12", "IO10"; +}; + +&wkup_i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&wkup_i2c0_pins_default>; + clock-frequency = <400000>; +}; + +&mcu_i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&mcu_i2c0_pins_default>; + clock-frequency = <400000>; + + psu: regulator@60 { + compatible = "ti,tps62363"; + reg = <0x60>; + regulator-name = "tps62363-vout"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1500000>; + regulator-boot-on; + ti,vsel0-state-high; + ti,vsel1-state-high; + ti,enable-vout-discharge; + }; + + /* D4200 */ + pcal9535_1: gpio@20 { + compatible = "nxp,pcal9535"; + reg = <0x20>; + #gpio-cells = <2>; + gpio-controller; + gpio-line-names = + "A0-pull", "A1-pull", "A2-pull", "A3-pull", "A4-pull", + "A5-pull", "", "", + "IO14-enable", "IO15-enable", "IO16-enable", + "IO17-enable", "IO18-enable", "IO19-enable"; + }; + + /* D4201 */ + pcal9535_2: gpio@21 { + compatible = "nxp,pcal9535"; + reg = <0x21>; + #gpio-cells = <2>; + gpio-controller; + gpio-line-names = + "IO0-direction", "IO1-direction", "IO2-direction", + "IO3-direction", "IO4-direction", "IO5-direction", + "IO6-direction", "IO7-direction", + "IO8-direction", "IO9-direction", "IO10-direction", + "IO11-direction", "IO12-direction", "IO13-direction", + "IO19-direction"; + }; + + /* D4202 */ + pcal9535_3: gpio@25 { + compatible = "nxp,pcal9535"; + reg = <0x25>; + #gpio-cells = <2>; + gpio-controller; + gpio-line-names = + "IO0-pull", "IO1-pull", "IO2-pull", "IO3-pull", + "IO4-pull", "IO5-pull", "IO6-pull", "IO7-pull", + "IO8-pull", "IO9-pull", "IO10-pull", "IO11-pull", + "IO12-pull", "IO13-pull"; + }; +}; + +&main_i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c0_pins_default>; + clock-frequency = <400000>; + + rtc: rtc8564@51 { + compatible = "nxp,pcf8563"; + reg = <0x51>; + }; + + eeprom: eeprom@54 { + compatible = "atmel,24c08"; + reg = <0x54>; + pagesize = <16>; + }; +}; + +&main_i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c1_pins_default>; + clock-frequency = <400000>; +}; + +&main_i2c2 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c2_pins_default>; + clock-frequency = <400000>; +}; + +&main_i2c3 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c3_pins_default>; + clock-frequency = <400000>; + + #address-cells = <1>; + #size-cells = <0>; + + edp-bridge@f { + compatible = "toshiba,tc358767"; + reg = <0x0f>; + pinctrl-names = "default"; + pinctrl-0 = <&dp_pins_default>; + reset-gpios = <&main_gpio0 30 GPIO_ACTIVE_HIGH>; + + clock-names = "ref"; + clocks = <&dp_refclk>; + + toshiba,hpd-pin = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@1 { + reg = <1>; + + bridge_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + }; + }; +}; + +&mcu_cpsw { + status = "disabled"; +}; + +&ecap0 { + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins_default>; +}; + +&sdhci1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_mmc1_pins_default>; + ti,driver-strength-ohm = <50>; + disable-wp; +}; + +&usb0 { + pinctrl-names = "default"; + pinctrl-0 = <&usb0_pins_default>; + dr_mode = "host"; +}; + +&usb1 { + pinctrl-names = "default"; + pinctrl-0 = <&usb1_pins_default>; + dr_mode = "host"; +}; + +&mcu_spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&mcu_spi0_pins_default>; + + #address-cells = <1>; + #size-cells= <0>; + ti,pindir-d0-out-d1-in = <1>; +}; + +&tscadc0 { + status = "disabled"; +}; + +&tscadc1 { + adc { + ti,adc-channels = <0 1 2 3 4 5>; + }; +}; + +&ospi0 { + pinctrl-names = "default"; + pinctrl-0 = <&mcu_fss0_ospi0_pins_default>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0x0>; + spi-tx-bus-width = <1>; + spi-rx-bus-width = <1>; + spi-max-frequency = <50000000>; + cdns,tshsl-ns = <60>; + cdns,tsd2d-ns = <60>; + cdns,tchsh-ns = <60>; + cdns,tslch-ns = <60>; + cdns,read-delay = <2>; + #address-cells = <1>; + #size-cells = <1>; + }; +}; + +&dss { + pinctrl-names = "default"; + pinctrl-0 = <&dss_vout1_pins_default>; + + assigned-clocks = <&k3_clks 67 2>; + assigned-clock-parents = <&k3_clks 67 5>; +}; + +&dss_ports { + #address-cells = <1>; + #size-cells = <0>; + port@1 { + reg = <1>; + + dpi_out: endpoint { + remote-endpoint = <&bridge_in>; + }; + }; +}; + +&serdes0 { + status = "disabled"; +}; + +&pcie0_rc { + status = "disabled"; +}; + +&pcie0_ep { + status = "disabled"; +}; + +&pcie1_rc { + pinctrl-names = "default"; + pinctrl-0 = <&minipcie_pins_default>; + + num-lanes = <1>; + phys = <&serdes1 PHY_TYPE_PCIE 0>; + phy-names = "pcie-phy0"; + reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>; +}; + +&pcie1_ep { + status = "disabled"; +}; diff --git a/arch/arm/dts/k3-am65-iot2050-spl.dts b/arch/arm/dts/k3-am65-iot2050-spl.dts new file mode 100644 index 0000000000..b6bd148fd3 --- /dev/null +++ b/arch/arm/dts/k3-am65-iot2050-spl.dts @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Jan Kiszka jan.kiszk@siemens.com + */ + +/dts-v1/; + +#include "k3-am65-iot2050-common-u-boot.dtsi" + +/ { + compatible = "siemens,iot2050", "ti,am654"; + model = "Siemens IOT2050"; +}; diff --git a/arch/arm/dts/k3-am6528-iot2050-basic.dts b/arch/arm/dts/k3-am6528-iot2050-basic.dts new file mode 100644 index 0000000000..4d1dd69719 --- /dev/null +++ b/arch/arm/dts/k3-am6528-iot2050-basic.dts @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Le Jin le.jin@siemens.com + * Jan Kiszka jan.kiszk@siemens.com + * + * AM6528-based (dual-core) IOT2050 Basic variant + * 1 GB RAM, no eMMC, main_uart0 on connector X30 + */ + +/dts-v1/; + +#include "k3-am65-iot2050-common-u-boot.dtsi" +#include "k3-am65-iot2050-boot-image.dtsi" + +/ { + compatible = "siemens,iot2050-basic", "ti,am654"; + model = "SIMATIC IOT2050 Basic"; + + memory@80000000 { + device_type = "memory"; + /* 1G RAM */ + reg = <0x00000000 0x80000000 0x00000000 0x40000000>; + }; + + cpus { + cpu-map { + /delete-node/ cluster1; + }; + /delete-node/ cpu@100; + /delete-node/ cpu@101; + }; + + /delete-node/ l2-cache1; +}; + +/* eMMC */ +&sdhci0 { + status = "disabled"; +}; + +&main_pmx0 { + main_uart0_pins_default: main-uart0-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x01e4, PIN_INPUT, 0) /* (AF11) UART0_RXD */ + AM65X_IOPAD(0x01e8, PIN_OUTPUT, 0) /* (AE11) UART0_TXD */ + AM65X_IOPAD(0x01ec, PIN_INPUT, 0) /* (AG11) UART0_CTSn */ + AM65X_IOPAD(0x01f0, PIN_OUTPUT, 0) /* (AD11) UART0_RTSn */ + AM65X_IOPAD(0x0188, PIN_INPUT, 1) /* (D25) UART0_DCDn */ + AM65X_IOPAD(0x018c, PIN_INPUT, 1) /* (B26) UART0_DSRn */ + AM65X_IOPAD(0x0190, PIN_OUTPUT, 1) /* (A24) UART0_DTRn */ + AM65X_IOPAD(0x0194, PIN_INPUT, 1) /* (E24) UART0_RIN */ + >; + }; +}; + +&main_uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_uart0_pins_default>; +}; + +&mcu_r5fss0 { + /* lock-step mode not supported on this board */ + ti,cluster-mode = <0>; +}; diff --git a/arch/arm/dts/k3-am6548-iot2050-advanced.dts b/arch/arm/dts/k3-am6548-iot2050-advanced.dts new file mode 100644 index 0000000000..cd3e93fce1 --- /dev/null +++ b/arch/arm/dts/k3-am6548-iot2050-advanced.dts @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Le Jin le.jin@siemens.com + * Jan Kiszka jan.kiszk@siemens.com + * + * AM6548-based (quad-core) IOT2050 Advanced variant + * 2 GB RAM, 16 GB eMMC, USB-serial converter on connector X30 + */ + +/dts-v1/; + +#include "k3-am65-iot2050-common-u-boot.dtsi" +#include "k3-am65-iot2050-boot-image.dtsi" + +/ { + compatible = "siemens,iot2050-advanced", "ti,am654"; + model = "SIMATIC IOT2050 Advanced"; + + aliases { + mmc0 = &sdhci1; + mmc1 = &sdhci0; + }; + + memory@80000000 { + device_type = "memory"; + /* 2G RAM */ + reg = <0x00000000 0x80000000 0x00000000 0x80000000>; + }; +}; + +&main_pmx0 { + main_mmc0_pins_default: main-mmc0-pins-default { + pinctrl-single,pins = < + AM65X_IOPAD(0x01a8, PIN_INPUT_PULLDOWN, 0) /* (B25) MMC0_CLK */ + AM65X_IOPAD(0x01ac, PIN_INPUT_PULLUP, 0) /* (B27) MMC0_CMD */ + AM65X_IOPAD(0x01a4, PIN_INPUT_PULLUP, 0) /* (A26) MMC0_DAT0 */ + AM65X_IOPAD(0x01a0, PIN_INPUT_PULLUP, 0) /* (E25) MMC0_DAT1 */ + AM65X_IOPAD(0x019c, PIN_INPUT_PULLUP, 0) /* (C26) MMC0_DAT2 */ + AM65X_IOPAD(0x0198, PIN_INPUT_PULLUP, 0) /* (A25) MMC0_DAT3 */ + AM65X_IOPAD(0x0194, PIN_INPUT_PULLUP, 0) /* (E24) MMC0_DAT4 */ + AM65X_IOPAD(0x0190, PIN_INPUT_PULLUP, 0) /* (A24) MMC0_DAT5 */ + AM65X_IOPAD(0x018c, PIN_INPUT_PULLUP, 0) /* (B26) MMC0_DAT6 */ + AM65X_IOPAD(0x0188, PIN_INPUT_PULLUP, 0) /* (D25) MMC0_DAT7 */ + AM65X_IOPAD(0x01b8, PIN_OUTPUT_PULLUP, 7) /* (B23) MMC0_SDWP */ + AM65X_IOPAD(0x01b4, PIN_INPUT_PULLUP, 0) /* (A23) MMC0_SDCD */ + AM65X_IOPAD(0x01b0, PIN_INPUT, 0) /* (C25) MMC0_DS */ + >; + }; +}; + +/* eMMC */ +&sdhci0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_mmc0_pins_default>; + bus-width = <8>; + non-removable; + ti,driver-strength-ohm = <50>; + disable-wp; +}; + +&main_uart0 { + status = "disabled"; +};
From: Jan Kiszka jan.kiszka@siemens.com
This adds support for the IOT2050 Basic and Advanced devices. The Basic used the dual-core AM6528 GP processor, the Advanced one the AM6548 HS quad-core version.
Both variants are booted via a Siemens-provided FSBL that runs on the R5 cores. Consequently, U-Boot support is targeting the A53 cores. U-Boot SPL, ATF and TEE have to reside in SPI flash.
Full integration into a bootable image can be found on https://github.com/siemens/meta-iot2050
Based on original board support by Le Jin, Gao Nian and Chao Zeng.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- arch/arm/mach-k3/Kconfig | 1 + board/siemens/iot2050/Kconfig | 32 ++++ board/siemens/iot2050/MAINTAINERS | 8 + board/siemens/iot2050/Makefile | 10 ++ board/siemens/iot2050/README | 65 +++++++ board/siemens/iot2050/board.c | 284 ++++++++++++++++++++++++++++++ board/siemens/iot2050/config.mk | 8 + configs/iot2050_defconfig | 132 ++++++++++++++ include/configs/iot2050.h | 67 +++++++ 9 files changed, 607 insertions(+) create mode 100644 board/siemens/iot2050/Kconfig create mode 100644 board/siemens/iot2050/MAINTAINERS create mode 100644 board/siemens/iot2050/Makefile create mode 100644 board/siemens/iot2050/README create mode 100644 board/siemens/iot2050/board.c create mode 100644 board/siemens/iot2050/config.mk create mode 100644 configs/iot2050_defconfig create mode 100644 include/configs/iot2050.h
diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig index fa8d134b42..526f5f8b76 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -168,4 +168,5 @@ config K3_DM_FW source "board/ti/am65x/Kconfig" source "board/ti/am64x/Kconfig" source "board/ti/j721e/Kconfig" +source "board/siemens/iot2050/Kconfig" endif diff --git a/board/siemens/iot2050/Kconfig b/board/siemens/iot2050/Kconfig new file mode 100644 index 0000000000..8f634c172c --- /dev/null +++ b/board/siemens/iot2050/Kconfig @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (c) Siemens AG, 2018-2021 +# +# Authors: +# Le Jin le.jin@siemens.com +# Jan Kiszka jan.kiszka@siemens.com + +config TARGET_IOT2050_A53 + bool "IOT2050 running on A53" + select ARM64 + select SOC_K3_AM6 + select BOARD_LATE_INIT + select SYS_DISABLE_DCACHE_OPS + select BINMAN + +if TARGET_IOT2050_A53 + +config SYS_BOARD + default "iot2050" + +config SYS_VENDOR + default "siemens" + +config SYS_CONFIG_NAME + default "iot2050" + +config IOT2050_BOOT_SWITCH + bool "Disable eMMC boot via USER button (Advanced version only)" + default y + +endif diff --git a/board/siemens/iot2050/MAINTAINERS b/board/siemens/iot2050/MAINTAINERS new file mode 100644 index 0000000000..028fd22960 --- /dev/null +++ b/board/siemens/iot2050/MAINTAINERS @@ -0,0 +1,8 @@ +IOT2050 BOARD +M: Le Jin le.jin@siemens.com +M: Jan Kiszka jan.kiszka@siemens.com +S: Maintained +F: board/siemens/iot2050/ +F: include/configs/iot2050.h +F: configs/iot2050_defconfig +F: arch/arm/dts/iot2050-* diff --git a/board/siemens/iot2050/Makefile b/board/siemens/iot2050/Makefile new file mode 100644 index 0000000000..619594ab8e --- /dev/null +++ b/board/siemens/iot2050/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Makefile for Siemens IOT2050 board +# Copyright (c) Siemens AG, 2018-2021 +# +# Authors: +# Le Jin le.jin@siemens.com +# + +obj-y += board.o diff --git a/board/siemens/iot2050/README b/board/siemens/iot2050/README new file mode 100644 index 0000000000..b63f05b5cf --- /dev/null +++ b/board/siemens/iot2050/README @@ -0,0 +1,65 @@ +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. + +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 +OP-TEE, before booting U-Boot on the A53 cores. This describes how to build all +open artifacts into a flashable image for the OSPI flash. The flash image will +work on both variants. + + +Dependencies +------------ + +ATF: Upstream release 2.4 or newer +OP-TEE: Upstream release 3.10.0 or newer + +Binary dependencies can be found in +https://github.com/siemens/meta-iot2050/tree/master/recipes-bsp/u-boot/files.... +The following binaries from that source need to be present in the build folder: + + - tiboot3.bin + - sysfw.itb + - sysfw.itb_HS + + +Building +-------- + +Make sure that CROSS_COMPILE is set appropriately: + + export CROSS_COMPILE=aarch64-linux-gnu- + +ATF: + + make PLAT=k3 SPD=opteed K3_USART=1 + +OP-TEE: + + make PLATFORM=k3-am65x CFG_ARM64_core=y \ + CFG_TEE_CORE_LOG_LEVEL=2 CFG_CONSOLE_UART=1 + +U-Boot: + + export ATF=/path/to/bl31.bin + export TEE=/path/to/tee-pager_v2.bin + make iot2050_defconfig + make + + +Flashing +-------- + +Via U-Boot: + + sf probe + load mmc 0:1 $loadaddr /path/to/flash.bin + sf update $loadaddr 0x0 $filesize + +Via external programmer Dediprog SF100 or SF600: + + dpcmd --vcc 2 -v -u flash.bin diff --git a/board/siemens/iot2050/board.c b/board/siemens/iot2050/board.c new file mode 100644 index 0000000000..cc84081296 --- /dev/null +++ b/board/siemens/iot2050/board.c @@ -0,0 +1,284 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board specific initialization for IOT2050 + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Le Jin le.jin@siemens.com + * Jan Kiszka jan.kiszka@siemens.com + */ + +#include <common.h> +#include <bootstage.h> +#include <dm.h> +#include <i2c.h> +#include <led.h> +#include <malloc.h> +#include <net.h> +#include <phy.h> +#include <spl.h> +#include <version.h> +#include <linux/delay.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/hardware.h> +#include <asm/gpio.h> +#include <asm/io.h> + +#define IOT2050_INFO_MAGIC 0x20502050 + +struct iot2050_info { + u32 magic; + u16 size; + char name[20 + 1]; + char serial[16 + 1]; + char mlfb[18 + 1]; + char uuid[32 + 1]; + char a5e[18 + 1]; + u8 mac_addr_cnt; + u8 mac_addr[8][ARP_HLEN]; + char seboot_version[40 + 1]; +} __packed; + +/* + * Scratch SRAM (available before DDR RAM) contains extracted EEPROM data. + */ +#define IOT2050_INFO_DATA ((struct iot2050_info *) \ + TI_SRAM_SCRATCH_BOARD_EEPROM_START) + +DECLARE_GLOBAL_DATA_PTR; + +static bool board_is_advanced(void) +{ + struct iot2050_info *info = IOT2050_INFO_DATA; + + return info->magic == IOT2050_INFO_MAGIC && + !strcmp((char *)info->name, "IOT2050-ADVANCED"); +} + +static void remove_mmc1_target(void) +{ + char *boot_targets = strdup(env_get("boot_targets")); + char *mmc1 = strstr(boot_targets, "mmc1"); + + if (mmc1) { + memmove(mmc1, mmc1 + 4, strlen(mmc1 + 4) + 1); + env_set("boot_targets", boot_targets); + } + + free(boot_targets); +} + +void set_board_info_env(void) +{ + struct iot2050_info *info = IOT2050_INFO_DATA; + u8 __maybe_unused mac_cnt; + + if (info->magic != IOT2050_INFO_MAGIC) { + pr_err("IOT2050: Board info parsing error!\n"); + return; + } + + if (env_get("board_uuid")) + return; + + env_set("board_name", info->name); + env_set("board_serial", info->serial); + env_set("mlfb", info->mlfb); + env_set("board_uuid", info->uuid); + env_set("board_a5e", info->a5e); + env_set("fw_version", PLAIN_VERSION); + env_set("seboot_version", info->seboot_version); + + if (IS_ENABLED(CONFIG_NET)) { + /* MAC address */ + for (mac_cnt = 0; mac_cnt < info->mac_addr_cnt; mac_cnt++) { + if (is_valid_ethaddr(info->mac_addr[mac_cnt])) + eth_env_set_enetaddr_by_index("eth", + mac_cnt + 1, + info->mac_addr[mac_cnt]); + } + + /* + * Set the MAC address environment variable that ICSSG0-PRU eth0 will + * use in u-boot + */ + env_set("ethaddr", env_get("eth1addr")); + } + + if (board_is_advanced()) { + env_set("fdtfile", "ti/k3-am6548-iot2050-advanced.dtb"); + } else { + env_set("fdtfile", "ti/k3-am6528-iot2050-basic.dtb"); + /* remove the unavailable eMMC (mmc1) from the list */ + remove_mmc1_target(); + } + + env_save(); +} + +int board_init(void) +{ + return 0; +} + +int dram_init(void) +{ + if (board_is_advanced()) + gd->ram_size = SZ_2G; + else + gd->ram_size = SZ_1G; + + return 0; +} + +int dram_init_banksize(void) +{ + dram_init(); + + /* Bank 0 declares the memory available in the DDR low region */ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = gd->ram_size; + + /* Bank 1 declares the memory available in the DDR high region */ + gd->bd->bi_dram[1].start = 0; + gd->bd->bi_dram[1].size = 0; + + return 0; +} + +#ifdef CONFIG_SPL_LOAD_FIT +int board_fit_config_name_match(const char *name) +{ + struct iot2050_info *info = IOT2050_INFO_DATA; + char upper_name[32]; + + if (info->magic != IOT2050_INFO_MAGIC || + strlen(name) >= sizeof(upper_name)) + return -1; + + str_to_upper(name, upper_name, sizeof(upper_name)); + if (!strcmp(upper_name, (char *)info->name)) + return 0; + + return -1; +} +#endif + +int do_board_detect(void) +{ + return 0; +} + +#ifdef CONFIG_IOT2050_BOOT_SWITCH +static bool user_button_pressed(void) +{ + struct udevice *red_led = NULL; + unsigned long count = 0; + struct gpio_desc gpio; + + memset(&gpio, 0, sizeof(gpio)); + + if (dm_gpio_lookup_name("25", &gpio) < 0 || + dm_gpio_request(&gpio, "USER button") < 0 || + dm_gpio_set_dir_flags(&gpio, GPIOD_IS_IN) < 0) + return false; + + if (dm_gpio_get_value(&gpio) == 1) + return false; + + printf("USER button pressed - booting from external media only\n"); + + led_get_by_label("status-led-red", &red_led); + + if (red_led) + led_set_state(red_led, LEDST_ON); + + while (dm_gpio_get_value(&gpio) == 0 && count++ < 10000) + mdelay(1); + + if (red_led) + led_set_state(red_led, LEDST_OFF); + + return true; +} +#endif + +#define SERDES0_LANE_SELECT 0x00104080 + +int board_late_init(void) +{ + /* change CTRL_MMR register to let serdes0 not output USB3.0 signals. */ + writel(0x3, SERDES0_LANE_SELECT); + + set_board_info_env(); + + /* remove the eMMC if requested via button */ + if (IS_ENABLED(CONFIG_IOT2050_BOOT_SWITCH) && board_is_advanced() && + user_button_pressed()) + remove_mmc1_target(); + + return 0; +} + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +int ft_board_setup(void *blob, struct bd_info *bd) +{ + int ret; + + ret = fdt_fixup_msmc_ram(blob, "/bus@100000", "sram@70000000"); + if (ret < 0) + ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000", + "sram@70000000"); + if (ret) + pr_err("%s: fixing up msmc ram failed %d\n", __func__, ret); + + return ret; +} +#endif + +void spl_board_init(void) +{ +} + +/* RJ45 LED configuration */ +#define DP83867_DEVADDR 0x1f + +#define DP83867_LEDCR_1 0x0018 + +#define DP83867_LED_1000_BT_LINK 0x5 +#define DP83867_LED_100_BTX_LINK 0x6 +#define DP83867_LED_LINK_BLINK_ACTIVE 0xb +#define DP83867_LED_SET(n, v) ((v) << ((n) * 4)) + +#define DP83867_LED_SETTINGS \ + (DP83867_LED_SET(0, DP83867_LED_LINK_BLINK_ACTIVE) | \ + DP83867_LED_SET(1, DP83867_LED_1000_BT_LINK) | \ + DP83867_LED_SET(2, DP83867_LED_100_BTX_LINK) | \ + DP83867_LED_SET(3, DP83867_LED_100_BTX_LINK)) + +int board_phy_config(struct phy_device *phydev) +{ + return phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_LEDCR_1, + DP83867_LED_SETTINGS); +} + +#if CONFIG_IS_ENABLED(LED) && CONFIG_IS_ENABLED(BOOTSTAGE) +/* + * Indicate any error or (accidental?) entering of CLI via the red status LED. + */ +void show_boot_progress(int progress) +{ + struct udevice *dev; + int ret; + + if (progress < 0 || progress == BOOTSTAGE_ID_ENTER_CLI_LOOP) { + ret = led_get_by_label("status-led-green", &dev); + if (ret == 0) + led_set_state(dev, LEDST_OFF); + + ret = led_get_by_label("status-led-red", &dev); + if (ret == 0) + led_set_state(dev, LEDST_ON); + } +} +#endif diff --git a/board/siemens/iot2050/config.mk b/board/siemens/iot2050/config.mk new file mode 100644 index 0000000000..267ec76c4e --- /dev/null +++ b/board/siemens/iot2050/config.mk @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (c) Siemens AG, 2020-2021 +# +# Authors: +# Jan Kiszka jan.kiszka@siemens.com + +flash.bin: all diff --git a/configs/iot2050_defconfig b/configs/iot2050_defconfig new file mode 100644 index 0000000000..6af8971aa5 --- /dev/null +++ b/configs/iot2050_defconfig @@ -0,0 +1,132 @@ +CONFIG_ARM=y +CONFIG_ARCH_K3=y +CONFIG_SPL_GPIO=y +CONFIG_SPL_LIBCOMMON_SUPPORT=y +CONFIG_SPL_LIBGENERIC_SUPPORT=y +CONFIG_SYS_MALLOC_F_LEN=0x8000 +CONFIG_NR_DRAM_BANKS=2 +CONFIG_SOC_K3_AM6=y +CONFIG_TARGET_IOT2050_A53=y +CONFIG_ENV_SIZE=0x20000 +CONFIG_ENV_OFFSET=0x680000 +CONFIG_ENV_SECT_SIZE=0x20000 +CONFIG_SYS_SPI_U_BOOT_OFFS=0x280000 +CONFIG_DM_GPIO=y +CONFIG_SPL_DM_SPI=y +CONFIG_DEFAULT_DEVICE_TREE="k3-am6528-iot2050-basic" +CONFIG_SPL_TEXT_BASE=0x80080000 +CONFIG_SPL_SERIAL_SUPPORT=y +CONFIG_SPL_DRIVERS_MISC_SUPPORT=y +CONFIG_SPL_STACK_R_ADDR=0x82000000 +CONFIG_ENV_OFFSET_REDUND=0x6a0000 +CONFIG_SPL_SPI_FLASH_SUPPORT=y +CONFIG_SPL_SPI_SUPPORT=y +CONFIG_DISTRO_DEFAULTS=y +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set +CONFIG_SPL_LOAD_FIT=y +# CONFIG_USE_SPL_FIT_GENERATOR is not set +CONFIG_OF_BOARD_SETUP=y +CONFIG_BOOTSTAGE=y +CONFIG_CONSOLE_MUX=y +# CONFIG_DISPLAY_CPUINFO is not set +CONFIG_SPL_BOARD_INIT=y +CONFIG_SPL_SYS_MALLOC_SIMPLE=y +CONFIG_SPL_STACK_R=y +CONFIG_SPL_SEPARATE_BSS=y +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x1400 +CONFIG_SPL_DM_MAILBOX=y +CONFIG_SPL_DM_SPI_FLASH=y +CONFIG_SPL_DM_RESET=y +CONFIG_SPL_POWER_DOMAIN=y +# CONFIG_SPL_SPI_FLASH_TINY is not set +CONFIG_SPL_SPI_FLASH_SFDP_SUPPORT=y +CONFIG_SPL_SPI_LOAD=y +CONFIG_SYS_PROMPT="IOT2050> " +CONFIG_CMD_ASKENV=y +CONFIG_CMD_DFU=y +CONFIG_CMD_GPT=y +CONFIG_CMD_I2C=y +CONFIG_CMD_MMC=y +CONFIG_CMD_PCI=y +CONFIG_CMD_REMOTEPROC=y +CONFIG_CMD_USB=y +# CONFIG_CMD_SETEXPR is not set +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 k3-am6548-iot2050-advanced" +CONFIG_SPL_MULTI_DTB_FIT=y +CONFIG_SPL_OF_LIST="k3-am65-iot2050-spl" +CONFIG_SPL_MULTI_DTB_FIT_NO_COMPRESSION=y +CONFIG_ENV_IS_IN_SPI_FLASH=y +CONFIG_SYS_REDUNDAND_ENVIRONMENT=y +# CONFIG_NET is not set +CONFIG_DM=y +CONFIG_SPL_DM=y +CONFIG_SPL_DM_SEQ_ALIAS=y +CONFIG_SPL_REGMAP=y +CONFIG_SPL_OF_TRANSLATE=y +CONFIG_CLK=y +CONFIG_SPL_CLK=y +CONFIG_CLK_TI_SCI=y +CONFIG_DFU_MMC=y +CONFIG_DFU_RAM=y +CONFIG_DFU_SF=y +CONFIG_DMA_CHANNELS=y +CONFIG_TI_K3_NAVSS_UDMA=y +CONFIG_TI_SCI_PROTOCOL=y +CONFIG_DA8XX_GPIO=y +CONFIG_DM_PCA953X=y +CONFIG_DM_I2C=y +CONFIG_I2C_SET_DEFAULT_BUS_NUM=y +CONFIG_SYS_I2C_OMAP24XX=y +CONFIG_LED=y +CONFIG_SPL_LED=y +CONFIG_LED_GPIO=y +CONFIG_SPL_LED_GPIO=y +CONFIG_DM_MAILBOX=y +CONFIG_K3_SEC_PROXY=y +CONFIG_MMC_HS200_SUPPORT=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_ADMA=y +CONFIG_MMC_SDHCI_AM654=y +CONFIG_DM_SPI_FLASH=y +CONFIG_SPI_FLASH_SFDP_SUPPORT=y +CONFIG_SPI_FLASH_STMICRO=y +CONFIG_SPI_FLASH_WINBOND=y +# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set +CONFIG_DM_ETH=y +CONFIG_PCI=y +CONFIG_PCI_KEYSTONE=y +CONFIG_PHY=y +CONFIG_AM654_PHY=y +CONFIG_OMAP_USB2_PHY=y +CONFIG_PINCTRL=y +# CONFIG_PINCTRL_GENERIC is not set +CONFIG_SPL_PINCTRL=y +# CONFIG_SPL_PINCTRL_GENERIC is not set +CONFIG_PINCTRL_SINGLE=y +CONFIG_POWER_DOMAIN=y +CONFIG_TI_SCI_POWER_DOMAIN=y +CONFIG_REMOTEPROC_TI_K3_R5F=y +CONFIG_DM_RESET=y +CONFIG_RESET_TI_SCI=y +CONFIG_DM_SERIAL=y +CONFIG_SOC_DEVICE=y +CONFIG_SOC_DEVICE_TI_K3=y +CONFIG_SOC_TI=y +CONFIG_SPI=y +CONFIG_DM_SPI=y +CONFIG_CADENCE_QSPI=y +CONFIG_SYSRESET=y +CONFIG_SPL_SYSRESET=y +CONFIG_SYSRESET_TI_SCI=y +CONFIG_USB=y +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_XHCI_DWC3=y +CONFIG_USB_DWC3=y +CONFIG_USB_DWC3_GENERIC=y +CONFIG_USB_KEYBOARD=y +CONFIG_OF_LIBFDT_OVERLAY=y diff --git a/include/configs/iot2050.h b/include/configs/iot2050.h new file mode 100644 index 0000000000..e95442d6aa --- /dev/null +++ b/include/configs/iot2050.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Configuration header file for IOT2050 + * Copyright (c) Siemens AG, 2018-2021 + * + * Authors: + * Le Jin le.jin@siemens.com + * Jan Kiszka jan.kiszk@siemens.com + */ + +#ifndef __CONFIG_IOT2050_H +#define __CONFIG_IOT2050_H + +#include <linux/sizes.h> + +/* SPL Loader Configuration */ +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \ + CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE) + +#define CONFIG_SKIP_LOWLEVEL_INIT + +#define CONFIG_SPL_MAX_SIZE CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE + +#define CONFIG_SYS_BOOTM_LEN SZ_64M + +/* U-Boot general configuration */ +#define EXTRA_ENV_IOT2050_BOARD_SETTINGS \ + "loadaddr=0x80080000\0" \ + "scriptaddr=0x83000000\0" \ + "kernel_addr_r=0x80080000\0" \ + "ramdisk_addr_r=0x81000000\0" \ + "fdt_addr_r=0x82000000\0" \ + "overlay_addr_r=0x83000000\0" \ + "usb_pgood_delay=900\0" + +#ifndef CONFIG_SPL_BUILD + +#if CONFIG_IS_ENABLED(CMD_USB) +# define BOOT_TARGET_USB(func) \ + func(USB, usb, 0) \ + func(USB, usb, 1) \ + func(USB, usb, 2) +#else +# define BOOT_TARGET_USB(func) +#endif + +/* + * This defines all MMC devices, even if the basic variant has no mmc1. + * The non-supported device will be removed from the boot targets during + * runtime, when that board was detected. + */ +#define BOOT_TARGET_DEVICES(func) \ + func(MMC, mmc, 1) \ + func(MMC, mmc, 0) \ + BOOT_TARGET_USB(func) + +#include <config_distro_bootcmd.h> + +#endif + +#define CONFIG_EXTRA_ENV_SETTINGS \ + BOOTENV \ + EXTRA_ENV_IOT2050_BOARD_SETTINGS + +#include <configs/ti_armv7_common.h> + +#endif /* __CONFIG_IOT2050_H */
From: Jan Kiszka jan.kiszka@siemens.com
Add the DT entry for a watchdog based on RTI1. It requires additional firmware on the MCU R5F cores to handle the expiry, e.g. https://github.com/siemens/k3-rti-wdt. As this firmware will also lock the power domain to protect it against premature shutdown, mark it shared.
Aligns us to the kernel's DT in this regard.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- arch/arm/dts/k3-am65-mcu.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm/dts/k3-am65-mcu.dtsi b/arch/arm/dts/k3-am65-mcu.dtsi index 7454c8cec0..903796bf7d 100644 --- a/arch/arm/dts/k3-am65-mcu.dtsi +++ b/arch/arm/dts/k3-am65-mcu.dtsi @@ -308,4 +308,13 @@ ti,loczrama = <1>; }; }; + + mcu_rti1: rti@40610000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x0 0x40610000 0x0 0x100>; + clocks = <&k3_clks 135 0>; + power-domains = <&k3_pds 135 TI_SCI_PD_SHARED>; + assigned-clocks = <&k3_clks 135 0>; + assigned-clock-parents = <&k3_clks 135 4>; + }; };
From: Jan Kiszka jan.kiszka@siemens.com
To avoid the need of extra boot scripting on AM65x for loading a watchdog firmware, add the required rproc init and loading logic for the first R5F core to the watchdog start handler. In case the R5F cluster is in lock-step mode, also initialize the second core. The firmware itself is embedded into U-Boot binary to ease access to it and ensure it is properly hashed in case of secure boot.
One possible firmware source is https://github.com/siemens/k3-rti-wdt.
The board is responsible for providing the firmware as additional loadable via the U-Boot fit image. The driver will pick up its location from /fit-images/k3-rti-wdt-firmware then.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- drivers/watchdog/Kconfig | 20 +++++++++ drivers/watchdog/rti_wdt.c | 88 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 108 insertions(+)
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index f0ff2612a6..1a1fddfe9f 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -209,6 +209,26 @@ config WDT_K3_RTI Say Y here if you want to include support for the K3 watchdog timer (RTI module) available in the K3 generation of processors.
+if WDT_K3_RTI + +config WDT_K3_RTI_LOAD_FW + bool "Load watchdog firmware" + depends on REMOTEPROC + help + Automatically load the specified firmware image into the MCU R5F + core 0. On the AM65x, this firmware is supposed to handle the expiry + of the watchdog timer, typically by resetting the system. + +config WDT_K3_RTI_FW_FILE + string "Watchdog firmware image file" + default "k3-rti-wdt.fw" + depends on WDT_K3_RTI_LOAD_FW + help + Firmware image to be embedded into U-Boot and loaded on watchdog + start. + +endif + config WDT_SANDBOX bool "Enable Watchdog Timer support for Sandbox" depends on SANDBOX && WDT diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c index 8335b20ae8..253286d349 100644 --- a/drivers/watchdog/rti_wdt.c +++ b/drivers/watchdog/rti_wdt.c @@ -11,9 +11,11 @@ #include <common.h> #include <clk.h> #include <dm.h> +#include <dm/device_compat.h> #include <power-domain.h> #include <wdt.h> #include <asm/io.h> +#include <remoteproc.h>
/* Timer register set definition */ #define RTIDWDCTRL 0x90 @@ -42,6 +44,88 @@ struct rti_wdt_priv { unsigned int clk_khz; };
+#ifdef CONFIG_WDT_K3_RTI_LOAD_FW +#define RTI_WDT_FIT_PATH "/fit-images/k3-rti-wdt-firmware" + +static int rti_wdt_load_fw(struct udevice *dev) +{ + struct udevice *rproc_dev; + int primary_core, ret; + u32 cluster_mode; + ofnode node; + u64 rti_wdt_fw; + u32 rti_wdt_fw_size; + + node = ofnode_path(RTI_WDT_FIT_PATH); + if (!ofnode_valid(node)) + goto fit_error; + + ret = ofnode_read_u64(node, "load", &rti_wdt_fw); + if (ret) + goto fit_error; + ret = ofnode_read_u32(node, "size", &rti_wdt_fw_size); + if (ret) + goto fit_error; + + node = ofnode_by_compatible(ofnode_null(), "ti,am654-r5fss"); + if (!ofnode_valid(node)) + goto dt_error; + + ret = ofnode_read_u32(node, "ti,cluster-mode", &cluster_mode); + if (ret) + cluster_mode = 1; + + node = ofnode_by_compatible(node, "ti,am654-r5f"); + if (!ofnode_valid(node)) + goto dt_error; + + ret = uclass_get_device_by_ofnode(UCLASS_REMOTEPROC, node, &rproc_dev); + if (ret) + return ret; + + primary_core = dev_seq(rproc_dev); + + ret = rproc_dev_init(primary_core); + if (ret) + goto fw_error; + + if (cluster_mode == 1) { + ret = rproc_dev_init(primary_core + 1); + if (ret) + goto fw_error; + } + + ret = rproc_load(primary_core, (ulong)rti_wdt_fw, + rti_wdt_fw_size); + if (ret) + goto fw_error; + + ret = rproc_start(primary_core); + if (ret) + goto fw_error; + + return 0; + +fit_error: + dev_err(dev, "No loadable firmware found under %s\n", RTI_WDT_FIT_PATH); + return -ENOENT; + +dt_error: + dev_err(dev, "No compatible firmware target processor found\n"); + return -ENODEV; + +fw_error: + dev_err(dev, "Failed to load watchdog firmware into remote processor %d\n", + primary_core); + return ret; +} +#else +static inline int rti_wdt_load_fw(struct udevice *dev) +{ + return 0; +} +#endif + static int rti_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags) { struct rti_wdt_priv *priv = dev_get_priv(dev); @@ -51,6 +135,10 @@ static int rti_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags) if (readl(priv->regs + RTIDWDCTRL) == WDENABLE_KEY) return -EBUSY;
+ ret = rti_wdt_load_fw(dev); + if (ret < 0) + return ret; + timer_margin = timeout_ms * priv->clk_khz / 1000; timer_margin >>= WDT_PRELOAD_SHIFT; if (timer_margin > WDT_PRELOAD_MAX)
From: Jan Kiszka jan.kiszka@siemens.com
This allows to use the watchdog in custom scripts but does not enforce that the OS has to support it as well.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- arch/arm/dts/k3-am65-iot2050-boot-image.dtsi | 16 ++++++++++++++++ configs/iot2050_defconfig | 6 ++++++ 2 files changed, 22 insertions(+)
diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi index 61745c6c23..8e3f1709e9 100644 --- a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi +++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi @@ -59,6 +59,16 @@ filename = "arch/arm/dts/k3-am6548-iot2050-advanced.dtb"; }; }; + +#ifdef CONFIG_WDT_K3_RTI_FW_FILE + k3-rti-wdt-firmware { + type = "blob"; + load = <0x82000000>; + blob { + filename = CONFIG_WDT_K3_RTI_FW_FILE; + }; + }; +#endif };
configurations { @@ -68,12 +78,18 @@ description = "iot2050-basic"; firmware = "u-boot"; fdt = "fdt-iot2050-basic"; +#ifdef CONFIG_WDT_K3_RTI_FW_FILE + loadables = "k3-rti-wdt-firmware"; +#endif };
conf-iot2050-advanced { description = "iot2050-advanced"; firmware = "u-boot"; fdt = "fdt-iot2050-advanced"; +#ifdef CONFIG_WDT_K3_RTI_FW_FILE + loadables = "k3-rti-wdt-firmware"; +#endif }; }; }; diff --git a/configs/iot2050_defconfig b/configs/iot2050_defconfig index 6af8971aa5..b30483f73b 100644 --- a/configs/iot2050_defconfig +++ b/configs/iot2050_defconfig @@ -51,6 +51,7 @@ CONFIG_CMD_MMC=y CONFIG_CMD_PCI=y CONFIG_CMD_REMOTEPROC=y CONFIG_CMD_USB=y +CONFIG_CMD_WDT=y # CONFIG_CMD_SETEXPR is not set CONFIG_CMD_TIME=y # CONFIG_ISO_PARTITION is not set @@ -129,4 +130,9 @@ CONFIG_USB_XHCI_DWC3=y CONFIG_USB_DWC3=y CONFIG_USB_DWC3_GENERIC=y CONFIG_USB_KEYBOARD=y +# CONFIG_WATCHDOG is not set +# CONFIG_WATCHDOG_AUTOSTART is not set +CONFIG_WDT=y +CONFIG_WDT_K3_RTI=y +CONFIG_WDT_K3_RTI_LOAD_FW=y CONFIG_OF_LIBFDT_OVERLAY=y
participants (1)
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Jan Kiszka