CN116974606A - Firmware refreshing circuit of baseboard management controller - Google Patents
Firmware refreshing circuit of baseboard management controller Download PDFInfo
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Abstract
The embodiment of the application provides a firmware refreshing circuit of a baseboard management controller, wherein the firmware refreshing circuit comprises: the system comprises a target function interface, a conversion module and a target power supply interface, wherein the target function interface is a board card interface used for realizing a target function on a board card where a substrate management controller is located, and the target power supply interface is a board card interface used for supplying power to the substrate management controller on the board card; the target function interface is connected with a target chip interface on the baseboard management controller and is connected with a power supply interface of the baseboard management controller through a conversion module, wherein the target chip interface is used for realizing a target function; a target function interface for connecting a target device; and the conversion module is used for converting the initial power input from the target function interface into target power. The application solves the problem of lower efficiency of firmware upgrading, thereby achieving the effect of improving the efficiency of firmware upgrading.
Description
Technical Field
The embodiment of the application relates to the field of baseboard management controllers, in particular to a firmware refreshing circuit of a baseboard management controller.
Background
With the rapid development of internet services, the conditions that the server needs to meet are more and more, the operation and maintenance of the server are accompanied with the development and maintenance stages of the whole server product, and as the requirements of the server are increased, the difficulty of operation and maintenance of the server is also increased, in the prior art, firmware upgrading is generally performed by accessing a specific PSU (Power Supply Unit ) power supply circuit into the server, so that the firmware upgrading of the server is limited by the power supply circuit, and the efficiency of firmware upgrading is reduced.
Aiming at the problems of lower efficiency of firmware upgrading and the like in the related technology, no effective solution has been proposed yet.
Disclosure of Invention
The embodiment of the application provides a firmware refreshing circuit of a baseboard management controller, which at least solves the problem of lower firmware upgrading efficiency in the related technology.
According to an embodiment of the present application, there is provided a firmware refresh circuit of a baseboard management controller, including: the system comprises a substrate management controller, a target function interface, a conversion module and a target power supply interface, wherein the target function interface is a board card interface used for realizing a target function on a board card where the substrate management controller is located, and the target power supply interface is a board card interface used for supplying power to the substrate management controller on the board card; the target function interface is connected with a target chip interface on the baseboard management controller and is connected with a power supply interface of the baseboard management controller through the conversion module, wherein the target chip interface is used for realizing the target function; the target function interface is used for connecting target equipment, wherein the target equipment is provided with a power supply and allows electric energy to be output to the target function interface; the conversion module is used for converting the initial electric energy input from the target function interface into target electric energy, wherein the target electric energy is electric energy meeting the electricity utilization requirement of firmware refreshing of the baseboard management controller.
In one exemplary embodiment, the conversion module includes: the first end of the step-down resistor is connected with the target function interface, and the second end of the step-down resistor is connected with the power supply interface; the step-down resistor is used for reducing the initial electric energy to the target electric energy, wherein the resistance value of the step-down resistor is determined according to the voltage difference between the initial electric energy and the target electric energy.
In an exemplary embodiment, the conversion module further includes: the second end of the first reverse connection preventing device is connected with the input end of the first reverse connection preventing device, and the output end of the first reverse connection preventing device is connected with the power supply interface.
In one exemplary embodiment, the first anti-reverse device includes: and the second end of the first anti-reflection diode is connected with the positive electrode of the first anti-reflection diode, and the negative electrode of the first anti-reflection diode is connected with the power supply interface.
In one exemplary embodiment, the target function interface includes: a test interface, the target device comprising: the operation and maintenance host is connected with the test interface through a USB Type-C interface; the operation and maintenance host is also connected with a management network interface on the board card through a network cable.
In an exemplary embodiment, the firmware refresh circuit further includes: the power panel and the second prevent reverse device, wherein, the input of power panel is used for connecting power equipment, the output of power panel with the input of second prevent reverse device is connected, the output of second prevent reverse device with target power supply interface connection.
In one exemplary embodiment, the second anti-reverse device includes: and the output end of the power panel is connected with the positive electrode of the second anti-reflection diode, and the negative electrode of the second anti-reflection diode is connected with the target power supply interface.
In an exemplary embodiment, the firmware refresh circuit further includes: the controller is connected with the target power supply interface, the target function interface and the power panel; the target power supply interface is also used for supplying power to the controller; the controller is configured to detect a power supply source of the baseboard management controller, where the power supply source includes: the power panel or the target function interface; and controlling the baseboard management controller to execute the power-on logic corresponding to the power supply source.
In an exemplary embodiment, the controller is configured to: under the condition that an electric signal on the power panel is detected, determining that the power supply source is the power panel; and under the condition that no electric signal is detected on the power panel, but an electric signal is detected on the target function interface, determining that the power supply source is the target function interface.
In an exemplary embodiment, the controller is configured to: when the power supply source is the power panel, controlling the baseboard management controller to execute the whole machine power-on logic after executing a firmware refreshing flow, wherein the power-on logic comprises the firmware refreshing flow and the whole machine power-on logic; and under the condition that the power supply source is the target function interface, controlling the baseboard management controller to only execute the firmware refreshing flow, wherein the power-on logic comprises the firmware refreshing flow.
By the present application, by comprising: the device comprises a target function interface, a conversion module and a firmware refreshing circuit of a baseboard management controller of a target power supply interface, wherein the target function interface is a board interface used for realizing a target function on a board where the baseboard management controller is located, and the target power supply interface is a board interface used for supplying power to the baseboard management controller on the board; the target function interface is connected with a target chip interface on the baseboard management controller and is connected with a power supply interface of the baseboard management controller through a conversion module, wherein the target chip interface is used for realizing a target function; a target function interface for connecting a target device, wherein the target device has a power source and allows output of electric power to the target function interface; and the conversion module is used for converting the initial electric energy input from the target function interface into target electric energy, wherein the target electric energy is electric energy meeting the electricity requirement of firmware refreshing of the baseboard management controller. The target function interface is connected with the target chip interface for realizing the target function on the baseboard management controller, so that the conversion module can convert the initial electric energy input from the target function interface into electric energy meeting the electricity utilization requirement for firmware refreshing of the baseboard management controller, and the effect that the electric energy meeting the electricity utilization requirement for firmware refreshing can be provided for the baseboard management controller by using the target chip interface under the condition that the target power supply interface is not used for supplying power to the baseboard management controller is realized.
Drawings
FIG. 1 is a schematic diagram of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
FIG. 2 is a schematic diagram II of a firmware refresh circuit of a baseboard management controller according to an embodiment of the application;
FIG. 3 is a third schematic diagram of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
FIG. 5 is a diagram of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
FIG. 6 is a diagram of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
FIG. 7 is a schematic diagram seventh of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
FIG. 8 is a schematic diagram of firmware refresh using a power strip according to an embodiment of the present application;
FIG. 9 is a schematic diagram eight of a firmware refresh circuit of a baseboard management controller according to an embodiment of the present application;
fig. 10 is a schematic diagram of a firmware refresh process of a baseboard management controller according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will be described in detail below with reference to the accompanying drawings in conjunction with the embodiments.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In this embodiment, a firmware refreshing circuit of a baseboard management controller is provided, fig. 1 is a schematic diagram of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 1, the firmware refreshing circuit of the baseboard management controller includes: the system comprises a target function interface 102, a conversion module 104 and a target power supply interface 106, wherein the target function interface 102 is a board interface used for realizing a target function on a board where the baseboard management controller is located, and the target power supply interface 106 is a board interface used for supplying power to the baseboard management controller on the board; the target function interface 102 is connected with a target chip interface 108 on the baseboard management controller and is connected with a power supply interface 110 of the baseboard management controller through the conversion module 104, wherein the target chip interface 108 is used for realizing the target function; the target function interface 102 is configured to connect to a target device 112, where the target device 112 has a power source and allows power to be output to the target function interface 102; the conversion module 104 is configured to convert the initial power input from the target function interface 102 into target power, where the target power is power that meets the power requirement of firmware refreshing of the baseboard management controller.
The firmware refreshing circuit of the baseboard management controller comprises: the device comprises a target function interface, a conversion module and a firmware refreshing circuit of a baseboard management controller of a target power supply interface, wherein the target function interface is a board interface used for realizing a target function on a board where the baseboard management controller is located, and the target power supply interface is a board interface used for supplying power to the baseboard management controller on the board; the target function interface is connected with a target chip interface on the baseboard management controller and is connected with a power supply interface of the baseboard management controller through a conversion module, wherein the target chip interface is used for realizing a target function; a target function interface for connecting a target device, wherein the target device has a power source and allows output of electric power to the target function interface; and the conversion module is used for converting the initial electric energy input from the target function interface into target electric energy, wherein the target electric energy is electric energy meeting the electricity requirement of firmware refreshing of the baseboard management controller. The target function interface is connected with the target chip interface for realizing the target function on the baseboard management controller, so that the conversion module can convert the initial electric energy input from the target function interface into electric energy meeting the electricity utilization requirement for firmware refreshing of the baseboard management controller, and the effect that the electric energy meeting the electricity utilization requirement for firmware refreshing can be provided for the baseboard management controller by using the target chip interface under the condition that the target power supply interface is not used for supplying power to the baseboard management controller is realized.
Optionally, in this embodiment, the firmware refreshing circuit of the baseboard management controller provided by the present application is allowed to be applied to various boards, which may include, but is not limited to: the firmware refreshing circuit of the baseboard management controller provided by the application can be used for firmware refreshing operation, such as: firmware upgrade, firmware detection, firmware monitoring. Firmware management, and the like.
Alternatively, in this embodiment, the baseboard management controller may be disposed on, but not limited to, various boards, such as: server motherboard, network equipment motherboard, embedded system motherboard, supercomputer motherboard, etc. Firmware refreshing may be performed on a variety of software or hardware on a board by, but not limited to, firmware refreshing circuitry of a baseboard management controller, such as: operating system firmware, driver firmware, embedded system firmware, device firmware memory, and the like.
Alternatively, in this embodiment, the target device is a device capable of providing initial power, which may include, but is not limited to: PC (Personal Computer ), supercomputer, mobile phone, etc. The initial power may be, but is not limited to, a variety of voltages, such as: 5V (Volt), 12V, etc.
Optionally, in this embodiment, the above-mentioned target function interface is used to connect the target device and the baseboard management controller, and is further used to transmit the initial power provided by the target device to the baseboard management controller, where the target function interface may include, but is not limited to, one or more interfaces disposed on a board, such as: a Debug (test) interface on the board card for debugging the program of the board card; IPMI (Intelligent Platform Management Interface ) on the target function interface connection board card is used for carrying out remote monitoring and management on the board card; JTAG (Joint Test Action Group, joint test workgroup) on the target function interface connection board card for debugging and testing the board card, etc.
Alternatively, the target function interface may be, but is not limited to, a converter with power transfer function capable of connecting the target device to the baseboard management controller, such as: the target device and the baseboard management controller are connected through a converter, and the converter is further used for transmitting initial power provided by the target device to the baseboard management controller. The target device may be a device that operates to output power, and since an interface device that is not universal is allowed between the target device and the board, the power on the target device may be transferred to the board by, but is not limited to, connecting an interface on the target device with an interface on the board through a converter, and the converter may connect the interface on the target device, including: USB Type-C (a USB interface profile standard) interface among USB (Universal Serial Bus ) interfaces, micro USB (a portable version of the USB 2.0 standard) interface, lighting (apple high-speed multifunction input/output) interface, etc. The converter may connect an interface on a board card, comprising: a Debug (test) interface on the board card for debugging the program of the board card; IPMI (Intelligent Platform Management Interface ) on the target function interface connection board card is used for carrying out remote monitoring and management on the board card; JTAG (Joint Test Action Group, joint test workgroup) on the target function interface connection board card for debugging and testing the board card, etc.
Alternatively, in this embodiment, the target function interface on the board and the target device may be connected in a plurality of ways, for example, but not limited to: the target function interface is connected with an interface on the target device. Or, the target device is connected through a connection device having a connection function.
Optionally, in this embodiment, the target power supply interface may be, but is not limited to, an interface device capable of supplying power to a board card, so as to supply power to a baseboard management controller disposed on the board card, for example: PSU, 24-pin ATX Power Connector (24-pin ATX power connector), 8-pin ATX Power Connector (8-pin ATX power connector), SATA Power Connector (SATA power connector), and the like.
Optionally, in this embodiment, the target chip interface is an interface disposed on the baseboard management controller for disposing the baseboard management controller on a board.
Alternatively, in this embodiment, the conversion module may include, but is not limited to, various forms, such as: the conversion module is an electric energy conversion circuit connected between the target function interface and the baseboard management controller, and the initial electric energy input by the target function interface is converted into target electric energy through the electric energy conversion circuit. Or the conversion module is a power converter connected between the target function interface and the baseboard management controller, and the initial power input by the target function interface is converted into target power through the power converter.
Meanwhile, the above-mentioned conversion module may be, but not limited to, connected between the target power supply interface and the baseboard management controller, including: and the electric energy conversion circuit is connected between the target power supply interface and the baseboard management controller and is used for converting initial electric energy input by the target power supply interface into target electric energy. Or the conversion module is connected with the electric energy converter between the target power supply interface and the baseboard management controller, and the initial electric energy input by the target power supply interface is converted into target electric energy through the electric energy converter.
In an exemplary embodiment, fig. 2 is a schematic diagram two of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 2, the conversion module 104 includes: a step-down resistor 202, wherein a first terminal 202-1 of the step-down resistor 202 is connected to the target function interface 102, and a second terminal 202-2 of the step-down resistor 202 is connected to the power supply interface 110; the step-down resistor 202 is configured to reduce the initial power to the target power, where a resistance value of the step-down resistor 202 is determined according to a voltage difference between the initial power and the target power.
Optionally, in this embodiment, a baseboard management controller disposed on a board is connected to a target functional interface on the board through a power supply interface on the baseboard management controller, and a step-down resistor is connected between the target functional interface on the board and the power supply interface of the baseboard management controller, so as to reduce initial electric energy transmitted by the target functional interface to target electric energy.
Alternatively, in the present embodiment, taking the initial voltage U1 of the initial power as 5V, the target voltage U2 of the target power as 4.9V, and the current I in the circuit as 1A (amp), the resistance of the step-down resistor R may be determined by, but not limited to, the following means: according to the formula r= (U1-U2)/i=0.1Ω (ohm), the resistance of the dropping resistor R is thus 0.1Ω.
Optionally, in this embodiment, the initial power transmitted from the target functional interface to the board card is reduced to the target power by the voltage dropping resistor in the conversion module, so that the power reaching the power supply interface of the baseboard management controller is within a safe range, and it can be ensured that the power input into the baseboard management controller does not cause the baseboard management controller to be burnt, thereby ensuring normal operation of the circuit.
In an exemplary embodiment, fig. 3 is a schematic diagram three of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 3, the conversion module 104 further includes: a first anti-reverse device 302, wherein the second end 202-2 is connected to an input end of the first anti-reverse device 302, and an output end of the first anti-reverse device 302 is connected to the power supply interface.
Optionally, in this embodiment, the first anti-reverse device may be, but is not limited to, an electronic device with a power blocking function, for example: an isolator with a power blocking function, a transistor diode, a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), and the like.
Optionally, in this embodiment, the baseboard management controller disposed on the board is connected to the target functional interface on the board through the power supply interface on the baseboard management controller, the step-down resistor is connected between the target functional interface on the board and the power supply interface of the baseboard management controller, the first anti-reverse connection device is connected between the step-down resistor and the power supply interface of the baseboard management controller, the initial electric energy transmitted by the target functional interface is reduced to the target electric energy through the step-down resistor, and the electric energy reaching the power supply interface of the baseboard management controller is prevented from reversely returning to the target functional interface through the first anti-reverse connection device, so that the target functional interface is burnt.
In an exemplary embodiment, fig. 4 is a schematic diagram four of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 4, the first anti-reverse device 302 includes: a first anti-reflection diode 402, wherein the second end 202-2 is connected with the positive electrode of the first anti-reflection diode 402, and the negative electrode of the first anti-reflection diode 402 is connected with the power supply interface.
Optionally, in this embodiment, the positive electrode of the first anti-reflection diode is connected to the second end of the voltage-reducing resistor, and the power supply interface is connected to the negative electrode of the first anti-reflection diode, so that electric energy can only be input from the target function interface to the voltage-reducing resistor to reach the positive electrode of the first anti-reflection diode, and then output to the power supply interface of the board card, and cannot be input from the power supply interface of the board card to the first anti-reflection diode to reach the target function interface in a reverse direction.
Optionally, in this embodiment, the baseboard management controller disposed on the board is connected to the target functional interface on the board through the power supply interface on the baseboard management controller, the step-down resistor is connected between the target functional interface on the board and the power supply interface of the baseboard management controller, the first anti-reflection diode is connected between the step-down resistor and the power supply interface of the baseboard management controller, the initial electric energy transmitted by the target functional interface is reduced to the target electric energy through the step-down resistor, and the electric energy reaching the power supply interface of the baseboard management controller is prevented from reversely returning to the target functional interface through the first anti-reflection diode, so that the target functional interface is burnt.
In an exemplary embodiment, fig. 5 is a schematic diagram five of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 5, the target function interface 102 includes: a test interface 502, the target device comprising: an operation and maintenance host 504, wherein the operation and maintenance host 504 is connected with the test interface 502 through a USB Type-C interface; the operation and maintenance host 504 is also connected to a management network interface 506 on the board through a network cable.
Optionally, in this embodiment, the target function interface may be, but is not limited to, a test interface on a board card for performing a test, where the test interface on the board card is connected to a USB Type-C (a USB interface external standard) interface of the operation and maintenance host, so as to receive initial electrical energy provided by the operation and maintenance host. The operation and maintenance host is also connected with the management network interface on the board card through a network cable.
Optionally, in this embodiment, the operation and maintenance host may be, but not limited to, connected to a management network interface on the board through a network cable, so that a communication connection is established between a physical layer interface chip (PHY IC) on the board and a Baseboard Management Controller (BMC), and the physical layer interface chip converts a digital signal into an analog signal, and performs data transmission through the network cable, so as to control the baseboard management controller to perform various operations, for example: remote reboot, sensor data wipe-up, firmware refresh, etc.
In an exemplary embodiment, fig. 6 is a schematic diagram six of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 6, the firmware refreshing circuit further includes: the power panel 602 and the second anti-reverse device 604, wherein an input end of the power panel 602 is used for being connected with the power supply device 606, an output end of the power panel 602 is connected with an input end of the second anti-reverse device 604, and an output end of the second anti-reverse device 604 is connected with the target power supply interface 106.
Alternatively, in the present embodiment, the power board may, but is not limited to, a power board for acquiring power input of the power supply device to the board card, and the power board may, but is not limited to, include: and the transmission equipment is connected between the power supply equipment and the board card and used for transmitting electric energy. Or, an interface device disposed on the board for connecting the power supply device to transmit the power of the power supply device to the board.
Alternatively, in this embodiment, the second anti-reverse connection device may be, but not limited to, an electronic device having a power blocking function, such as: an isolator with a power blocking function, a transistor diode, a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), and the like.
Optionally, in this embodiment, the second anti-reverse connection device is connected between the target power supply interface of the board card and the power board, and is used to prevent electric energy reaching the target power supply interface from returning to the power board, so that the power board is burnt.
In an exemplary embodiment, fig. 7 is a schematic diagram seven of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 7, the second anti-reverse device 604 includes: and a second anti-reflection diode 702, wherein an output end of the power panel 602 is connected with a positive electrode of the second anti-reflection diode 702, and a negative electrode of the second anti-reflection diode 702 is connected with the target power supply interface 106.
Optionally, in this embodiment, a second anti-reflection diode is connected between the target power supply interface of the board card and the power board, for preventing electric energy reaching the target power supply interface from returning to the power board, so that the power board is burned.
In an exemplary embodiment, fig. 8 is a schematic diagram of firmware refreshing using a power board according to an embodiment of the present application, where, as shown in fig. 8, the power supply device is AC/DC (alternating current/direct current), and the target power supply interface is PSU, and firmware refreshing may be performed using the power board, but not limited to, by:
the input end of the power panel is connected with the AC/DC, the power panel is connected with the PSU, the power panel outputs 12V voltage to supply power to the board, the board outputs 5V, 3.3V, 2.5V, 1.0V, 1.8V and other voltages by using a Buck step-down circuit (step-down conversion circuit), and the BIOS FW (Basic Input Output System Firmware ) upgrade, BMC FW (Baseboard Management Controller Firmware, baseboard management controller firmware) upgrade and CPLD FW (Complex Programmable Logic Device Firmware, programmable logic device firmware) upgrade can be performed by using a baseboard management controller in the following manners:
BIOS FW upgrade: BIOS FW upgrading is carried out through SPI (Serial Perripheral Interface, serial peripheral interface) channels which are transmitted to the baseboard management controller to the BIOS ROM through the baseboard management controller network;
BMC FW upgrade: the BMC FW upgrading is carried out through SPI channels which are transmitted to the BMC ROM through the baseboard management controller network;
CPLD FW upgrade: and (3) performing CPLD FW upgrading through an IIC (Inter-Integrated Circuit, integrated circuit bus) channel transmitted to the CPLD through the baseboard management controller network.
In an exemplary embodiment, fig. 9 is a schematic diagram eight of a firmware refreshing circuit of a baseboard management controller according to an embodiment of the present application, as shown in fig. 9, and further includes: a controller 802, wherein the controller 802 is connected to the target power supply interface 106, the target function interface 102, and the power board 602; the target power interface 106 is further configured to power the controller 802; the controller 802 is configured to detect a power supply source of the baseboard management controller, where the power supply source includes: the power panel 602 or the target function interface 102; and controlling the baseboard management controller to execute the power-on logic corresponding to the power supply source.
Alternatively, in this embodiment, the device disposed on the board with the controller having the power detection function may include, but is not limited to: CPLD (Complex Programmable Logic Device, programmable logic device), FPGA (Field Programmable Gate Array ), etc.
Alternatively, in this embodiment, the controller may determine the device from which the power is supplied by the baseboard management controller by detecting the power conditions of the target power supply interface, the target function interface, and the power board, but not limited to.
Alternatively, in this embodiment, the power supply source of the baseboard management controller may include, but is not limited to: a power strip or a target function interface. The power supply source of the baseboard management controller may be determined according to the detected power conditions of the target power supply interface, the target function interface and the power board, for example: under the condition that the target power supply interface and the target function interface are electrified, the power supply source of the substrate management controller is considered as the target function interface; alternatively, when the target power supply interface and the power panel are powered on, the power supply source of the baseboard management controller is considered to be the power panel.
Alternatively, in this embodiment, the device may be used, but is not limited to, to power the baseboard management controller, so that the baseboard management controller can perform firmware refresh operation.
Alternatively, in this embodiment, since the power supply source of the baseboard management controller may include, but is not limited to, a power board or a target function interface, in the case where the controller detects that both the power board and the target function interface are in an energized state, the power supply source of the baseboard management controller may be determined according to, but not limited to, the following logic.
TABLE 1
| Power panel | Target function interface | Judgment logic |
| Unpowered | Unpowered | Unpowered of baseboard management controller |
| Electrifying | Unpowered | Power supply source of baseboard management controller: power panel |
| Unpowered | Electrifying | Power supply source of baseboard management controller: target function interface |
| Electrifying | Electrifying | Power supply source of baseboard management controller: power panel |
As can be seen from table 1, when the target power supply interface, the power panel and the target function interface are all in a non-energized state, the baseboard management controller is considered to be not energized; powering on a target power supply interface, powering on a power panel, and considering a power supply source of the baseboard management controller as the power panel in a state that the target functional interface is not powered on; when the target power supply interface is electrified and the power panel is not electrified, the power supply source of the substrate management controller is considered as the target function interface in the state that the target function interface is electrified; and in the state that the target power supply interface is electrified and the power panel and the target function interface are electrified, the power supply source of the baseboard management controller is considered to be the power panel.
In an exemplary embodiment, the controller is configured to: under the condition that an electric signal on the power panel is detected, determining that the power supply source is the power panel; and under the condition that no electric signal is detected on the power panel, but an electric signal is detected on the target function interface, determining that the power supply source is the target function interface.
Optionally, in this embodiment, the controller further detects a power supply source of the baseboard management controller when detecting that there is an electrical signal on the target power supply interface, and determines that the power supply source is the power supply board when detecting that there is an electrical signal on the power supply board (including detecting that there is an electrical signal on the power supply board and an electrical signal on the target function interface; or detecting that there is an electrical signal on the power supply board and no electrical signal on the target function interface); and under the condition that no electric signal is detected on the power panel, but an electric signal is detected on the target function interface, determining the power supply source as the target function interface.
In an exemplary embodiment, the controller is configured to: when the power supply source is the power panel, controlling the baseboard management controller to execute the whole machine power-on logic after executing a firmware refreshing flow, wherein the power-on logic comprises the firmware refreshing flow and the whole machine power-on logic; and under the condition that the power supply source is the target function interface, controlling the baseboard management controller to only execute the firmware refreshing flow, wherein the power-on logic comprises the firmware refreshing flow.
Alternatively, in this embodiment, depending on the power source supplying power to the baseboard management controller, the controller may perform, but not limited to, a corresponding power-up operation, such as: under the condition that the power supply source is a power panel, the controller considers that the acquisition of the power-on power supply can ensure correct initialization and configuration, so that the power-on logic of the whole machine is executed. Or under the condition that the power supply source is a target function interface, the controller considers that the power supply capable of ensuring the correct initialization and configuration cannot be obtained, so that the power supply capable of ensuring the correct initialization and configuration is obtained after only executing the firmware refreshing flow, and the power supply capable of ensuring the correct initialization and configuration is used for executing the power-on logic of the whole machine.
In an exemplary embodiment, fig. 10 is a schematic diagram of a firmware refreshing process of a baseboard management controller according to an embodiment of the present application, as shown in fig. 10, taking a target function interface as a Debug interface, an operation and maintenance host as a computer, a power supply device as AC/DC (alternating current/direct current), and a target power supply interface as PSU as an example, firmware refreshing may be performed by using a power panel, but not limited to, the following ways:
the input end of the power panel is connected with the AC/DC, the power panel is connected with the PSU, the power panel outputs 12V voltage to supply power for the board card, and the board card outputs 5V, 3.3V, 2.5V, 1.0V, 1.8V and other voltages by using a Buck step-down circuit (step-down conversion circuit).
The computer inputs 5V voltage through a Debug interface on the USB Type-C interface connecting plate card, and outputs 5V, 3.3V, 2.5V, 1.0V, 1.8V and other voltages through a Buck voltage-reducing circuit (voltage-reducing conversion circuit) of the plate card.
BIOS FW (Basic Input Output System Firmware ) upgrades, BMC FW (Baseboard Management Controller Firmware, baseboard management controller firmware) upgrades, and CPLD FW (Complex Programmable Logic Device Firmware, programmable logic device firmware) upgrades may be performed using, but are not limited to, a baseboard management controller by:
BIOS FW upgrade: BIOS FW upgrading is carried out through SPI (Serial Perripheral Interface, serial peripheral interface) channels which are transmitted to the baseboard management controller to the BIOS ROM through the baseboard management controller network;
BMC FW upgrade: the BMC FW upgrading is carried out through SPI channels which are transmitted to the BMC ROM through the baseboard management controller network;
CPLD FW upgrade: and (3) performing CPLD FW upgrading through an IIC (Inter-Integrated Circuit, integrated circuit bus) channel transmitted to the CPLD through the baseboard management controller network.
As can be seen from table 1, in the state that the target power supply interface is powered on, the power panel and the target function interface are both powered on, the power supply source of the baseboard management controller is considered to be the power panel, and the power supply source of the baseboard management controller is considered to be the power panel in the state that the target power supply interface is powered on, the power panel and the target function interface are both powered on by the following ways:
because the resistor is connected between the Debug interface and the Buck voltage-reducing circuit, when the power panel and the target function interface are electrified, voltage output by the Debug interface is reduced through the resistor, so that the voltage of the voltage output by the power panel reaching the Buck voltage-reducing circuit is larger than the voltage of the voltage output by the target function interface reaching the Buck voltage-reducing circuit, and the Buck voltage-reducing circuit can use the voltage output by the power panel to carry out voltage-reducing operation to obtain electric energy capable of meeting the power consumption requirement of firmware refreshing of the baseboard management controller.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A firmware refresh circuit of a baseboard management controller, comprising: the system comprises a target function interface, a conversion module and a target power supply interface, wherein,
the target function interface is a board card interface used for realizing a target function on a board card where the baseboard management controller is located, and the target power supply interface is a board card interface used for supplying power to the baseboard management controller on the board card;
the target function interface is connected with a target chip interface on the baseboard management controller and is connected with a power supply interface of the baseboard management controller through the conversion module, wherein the target chip interface is used for realizing the target function;
the target function interface is used for connecting target equipment, wherein the target equipment is provided with a power supply and allows electric energy to be output to the target function interface;
the conversion module is used for converting the initial electric energy input from the target function interface into target electric energy, wherein the target electric energy is electric energy meeting the electricity utilization requirement of firmware refreshing of the baseboard management controller.
2. The firmware refresh circuit of claim 1, wherein the conversion module comprises: a step-down resistor, wherein,
the first end of the step-down resistor is connected with the target function interface, and the second end of the step-down resistor is connected with the power supply interface;
the step-down resistor is used for reducing the initial electric energy to the target electric energy, wherein the resistance value of the step-down resistor is determined according to the voltage difference between the initial electric energy and the target electric energy.
3. The firmware refresh circuit of claim 2, wherein the conversion module further comprises: a first anti-reverse device, wherein,
the second end is connected with the input end of the first anti-reverse connection device, and the output end of the first anti-reverse connection device is connected with the power supply interface.
4. The firmware refresh circuit of claim 3, wherein the first anti-reverse device comprises: a first anti-reverse diode, wherein,
the second end is connected with the positive electrode of the first anti-reflection diode, and the negative electrode of the first anti-reflection diode is connected with the power supply interface.
5. The firmware refresh circuit of claim 1 wherein the target function interface comprises: a test interface, the target device comprising: an operation and maintenance host, wherein,
the operation and maintenance host is connected with the test interface through a USB Type-C interface;
the operation and maintenance host is also connected with a management network interface on the board card through a network cable.
6. The firmware refresh circuit of claim 1, wherein the firmware refresh circuit further comprises: a power panel and a second reverse connection preventing device, wherein,
the input end of the power panel is used for being connected with power equipment, the output end of the power panel is connected with the input end of the second anti-reverse device, and the output end of the second anti-reverse device is connected with the target power supply interface.
7. The firmware refresh circuit of claim 6, wherein the second anti-reverse device comprises: a second anti-reverse diode, wherein,
the output end of the power panel is connected with the positive electrode of the second anti-reflection diode, and the negative electrode of the second anti-reflection diode is connected with the target power supply interface.
8. The firmware refresh circuit of claim 6, wherein the firmware refresh circuit further comprises: a controller, wherein,
the controller is connected with the target power supply interface, the target function interface and the power panel;
the target power supply interface is also used for supplying power to the controller;
the controller is configured to detect a power supply source of the baseboard management controller, where the power supply source includes: the power panel or the target function interface; and controlling the baseboard management controller to execute the power-on logic corresponding to the power supply source.
9. The firmware refresh circuit of claim 8, wherein the controller is to:
under the condition that an electric signal on the power panel is detected, determining that the power supply source is the power panel;
and under the condition that no electric signal is detected on the power panel, but an electric signal is detected on the target function interface, determining that the power supply source is the target function interface.
10. The firmware refresh circuit of claim 9, wherein the controller is configured to:
when the power supply source is the power panel, controlling the baseboard management controller to execute the whole machine power-on logic after executing a firmware refreshing flow, wherein the power-on logic comprises the firmware refreshing flow and the whole machine power-on logic;
and under the condition that the power supply source is the target function interface, controlling the baseboard management controller to only execute the firmware refreshing flow, wherein the power-on logic comprises the firmware refreshing flow.
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| CN202310953583.9A CN116974606A (en) | 2023-07-31 | 2023-07-31 | Firmware refreshing circuit of baseboard management controller |
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| CN202310953583.9A CN116974606A (en) | 2023-07-31 | 2023-07-31 | Firmware refreshing circuit of baseboard management controller |
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