CN108021405A - The driving method and device of storage medium in a kind of SOC system starting process - Google Patents
The driving method and device of storage medium in a kind of SOC system starting process Download PDFInfo
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- CN108021405A CN108021405A CN201610969891.0A CN201610969891A CN108021405A CN 108021405 A CN108021405 A CN 108021405A CN 201610969891 A CN201610969891 A CN 201610969891A CN 108021405 A CN108021405 A CN 108021405A
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- storage medium
- start unit
- code
- driver
- starting process
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
Abstract
The invention discloses the driving method and device of storage medium in a kind of SOC system starting process, the method is applied to described device, the described method comprises the following steps：First run first in the first start unit starts code；Second then run in the second start unit starts code, judges the driver of the storage medium needed for the second startup code whether is stored with the first start unit, if then calling the driver of the storage medium and operation from the first start unit.The above method is multiplexed the driver of the storage medium stored in the first start unit by the second start unit, the in the second start unit second firmware size for starting code is effectively reduced, also reduces the second startup code to the memory space of storage medium and the demand of running space.
Description
Technical field
The present invention relates to SOC frameworks field, the driving method of storage medium in more particularly to a kind of SOC system starting process
And device.
Background technology
As SOC functions are stronger and stronger, design becomes increasingly complex, and the function of BOOT ROM is also stronger and stronger.Due to
The code that starts in BOOT ROM needs to load the BOOTLOADER of next stage from different storage mediums, so BOOT ROM
The middle driver for necessarily including different storage mediums.
Meanwhile BOOTLOADER is also required to load the firmware of next stage from different storage mediums, so
Also the driver of different storage mediums is necessarily included in BOOTLOADER.
In addition, kernel may also need to access different storage mediums, so may also be deposited in kernel comprising difference
The driver of storage media.
In this way, the different piece in firmware contains the drivers of more parts of storage mediums, this can cause to cause
The firmware size of bootloader, kernel become larger, so as to cause the waste in storage medium space.Again due to bootloader
Run with kernel in Static RAM or memory, this also result in Static RAM and memory headroom
Waste.
The content of the invention
For this reason, it may be necessary to a kind of technical solution of the driving of storage medium in SOC system starting process is provided, it is existing for solving
There is the problems such as big associated firmware size that SOC systems are completed to start, waste memory space and running space.
To achieve the above object, a kind of driving method of storage medium in SOC system starting process, institute are inventor provided
The method of stating comprises the following steps：
First run in the first start unit starts code；First start unit is also stored with multiple storage mediums
Driver, it is described first start code include the second start unit where storage medium driver；
Second run in the second start unit starts code, judges the second startup whether is stored with the first start unit
The driver of storage medium needed for code, if then calling the driver of the storage medium from the first start unit simultaneously
Operation；
Further, the method further includes step：The 3rd run in the 3rd start unit starts code, judges first
The driver for the storage medium whether being stored with start unit needed for the 3rd startup code, if then from the first start unit
The middle driver for calling the storage medium and operation.
Further, first start unit is BOOT ROM, and the second start unit is BOOTLOADER, and the 3rd starts
Unit is operating system nucleus.
Further, the described second driver for starting the storage medium needed for code includes the 3rd startup code place
Storage medium driver.
Further, the driver of the storage medium needed for the 3rd startup code includes depositing where operating system
The corresponding driver of storage media.
Inventor additionally provides a kind of driving device of storage medium in SOC system starting process, and described device includes place
Manage unit, the first start unit, the second start unit, the 3rd start unit；
The processing unit is used to run the first startup code in the first start unit；First start unit is also deposited
The driver of multiple storage mediums is contained, described first, which starts code, includes the drive of the storage medium where the second start unit
Dynamic program；
The processing unit is additionally operable to the second startup code in the second start unit of operation, and judges the first start unit
In whether be stored with the driver of storage medium needed for the second startup code, should if then being called from the first start unit
The driver of storage medium and operation；
Further, the processing unit is additionally operable to the 3rd startup code in the 3rd start unit of operation, and judges
The driver for the storage medium whether being stored with first start unit needed for the 3rd startup code, if then starting from first
The driver of the storage medium and operation are called in unit.
Further, first start unit is BOOT ROM, and the second start unit is BOOTLOADER, and the 3rd starts
Unit is operating system nucleus.
Further, the described second driver for starting the storage medium needed for code includes the 3rd startup code place
Storage medium driver.
Further, the driver of the storage medium needed for the 3rd startup code includes depositing where operating system
The corresponding driver of storage media.
The driving method and device of storage medium, the method in SOC system starting process described in above-mentioned technical proposal
Applied to described device, the method is multiplexed the driving of the storage medium stored in the first start unit by the second start unit
Program, effectively reduces the in the second start unit second firmware size for starting code, also reduces the second startup code pair
The memory space of storage medium and the demand of running space.
Brief description of the drawings
Fig. 1 is the flow of the driving method of storage medium in the SOC system starting process that an embodiment of the present invention is related to
Figure；
Fig. 2 is the signal of the driving device of storage medium in the SOC system starting process that an embodiment of the present invention is related to
Figure；
Description of reference numerals：
101st, processing unit；
102nd, the first start unit；
103rd, the second start unit；
104th, the 3rd start unit.
Embodiment
To describe the technology contents of technical solution, construction feature, the objects and the effects in detail, below in conjunction with specific reality
Apply example and coordinate attached drawing to be explained in detail.Referring to Fig. 1, deposited in the SOC system starting process being related to for an embodiment of the present invention
The flow chart of the driving method of storage media.The method can be used for completing the startup of SOC systems, and the method specifically includes as follows
Step：
First initially entered in step S101 the first start units of operation starts code；First start unit is also deposited
Contain the driver of multiple storage mediums.Described first, which starts code, includes the drive of the storage medium where the second start unit
Dynamic program.In the present embodiment, first start unit is BOOTROM.The storage medium include floppy disk, CD,
DVD, hard disk, flash memory, USB flash disk, CF cards, SD card, mmc card, SM cards, memory stick, xD cards, eMMC, SPI flash, SSD, network are hard
One or more in disk.In other embodiments, the storage medium can also be other electronics members with store function
Part.The first startup code in BOOT ROM can be loaded into operation in Static RAM (SRAM) by SOC after starting, and be transported
Capable code includes the driver of the storage medium where the second start unit, such as the second start unit is stored in outside and deposits
In storage media, in hard disk, then the first start unit selects the corresponding driver of hard disk and runs, to load the second startup
The second of unit starts code.
Then enter step S102 run the second start unit in second start code, judge be in the first start unit
It is no to be stored with the driver of the storage medium needed for the second startup code, if then calling the storage from the first start unit
The driver of medium and operation.In the present embodiment, second start unit is BOOTLOADER, and described second starts
The driver of storage medium needed for code includes the driver of the storage medium where the 3rd startup code.Second starts
Code starts code next stage code for first, i.e. SOC, which completes startup, to be needed to run the first startup code and the second startup successively
Code.In certain embodiments, the code that SOC completes to start can also include the 3rd and start code, and the described 3rd starts code
The next stage for starting code for second starts code.Can be by from the first start unit in second startup code operational process
The driver of the storage medium where the 3rd startup code and execution are obtained, so that loading the 3rd is opened from the 3rd start unit
Dynamic code.
In further embodiments, the driver of the storage medium needed for the second startup code can also be opened including second
Dynamic code needs the driver of the storage medium where the data that write or read in the process of running.Such as second start generation
Code needs to read data from DDR in the process of running, and needs to write data into hard disk, illustrates needed for the second startup code
The startup program wanted includes the driver of DDR and hard disk.Second start unit can be loaded from the first start unit DDR and
The driver of hard disk, to read data from DDR or data to be write into hard disk.In this way, started by multiplexing first
The driver of storage medium in unit, effectively reduces firmware size, memory space and the running space of BOOTLOADER.
In certain embodiments, the method can also include step：The 3rd run in the 3rd start unit starts generation
Code, judges whether to be stored with the 3rd driver for starting storage medium needed for code in the first start unit, if then from
The driver of the storage medium and operation are called in first start unit.In the present embodiment, the 3rd start unit is behaviour
Make system kernel.Described 3rd driver for starting the storage medium needed for code includes the storage medium where operating system
Corresponding driver.Operating system nucleus (kernel) refers to the core of most of operating systems, it is by operating system
In be used for manage memory, file, peripheral hardware and system resource those parts composition.Operating system nucleus usually runs process,
And provide the communication between process.Such as operating system is stored in hard disk, the first start unit is stored with the corresponding driving of hard disk
Program, then operating system nucleus, can the corresponding driving of acquisition hard disk from the first start unit when running the 3rd startup code
Program, to load operating system from hard disk, completes SOC systems and starts.
In other embodiments, the second start unit, the 3rd start unit are multiplexed the storage medium in the first start unit
Driver can be accomplished by the following way：
A function pointer is declared first, and function pointer is directed toward to the storage address where the function in requisition for calling.
Such as the function of calling is located in Static RAM, then function pointer is directed toward the function called in Static RAM
In storage address.Specific code is as follows：
U32 (* func) (u32para1, u32para2, u32para3)=NULL；
Func=0xabcdefgh；
Wherein, func is the function for needing to call, and * func are the function pointer of statement, and para1~3 are called to be incoming
Function parameter.0xabcdefgh is storage address of the function called in Static RAM.It should be noted that
The function parameter quantity of calling is not limited to below 3, can also be more than 3, with specific reference to the work(of the function called
It can be determined.
Then call the function, you can call the function in BOOT ROM.Function in BOOT ROM is storage medium
Driver.Specific code is as follows：
func(para1,para2,para3)；
In actual application, func needs incoming parameter to need according to needed for the function of the BOOT ROM called
Number of parameters and type change.Function parameter (para) quantity of calling is not limited to below 3, can also be more
In 3, it is determined with specific reference to the function of the function called.
Referring to Fig. 2, and inventor additionally provide the driving device of storage medium in a kind of SOC system starting process
Schematic diagram.Described device includes processing unit 101, the first start unit 102, the second start unit 103.The processing unit is
The electronic component of specific data run processing function, such as CPU.
The processing unit 101 is used to run the first startup code in the first start unit 102；Described first starts list
Member is also stored with the driver of multiple storage mediums, and the described first storage for starting where code includes the second start unit is situated between
The driver of matter；
The processing unit 101 is additionally operable to the second startup code in the second start unit 103 of operation, and judges that first opens
The driver for the storage medium whether being stored with moving cell 102 needed for second startup code, if then starting from first single
Driver and the operation of the storage medium are called in member 102.
During using the driving device of storage medium in SOC system starting process, processing unit 101 is run first
First in first start unit 102 starts code.First start unit is also stored with the driving journey of multiple storage mediums
Sequence, described first, which starts code, includes the driver of the storage medium where the second start unit.In the present embodiment, institute
It is BOOT ROM to state the first start unit.The storage medium includes floppy disk, CD, DVD, hard disk, flash memory, USB flash disk, CF cards, SD
One or more in card, mmc card, SM cards, memory stick, xD cards, eMMC, SPI flash, SSD, network hard disc.In other realities
Apply in example, the storage medium can also be other electronic components with store function.SOC can be by BOOT ROM after starting
The first startup code be loaded into operation, the code run in Static RAM (SRAM) and include the second start unit institute
Storage medium driver, such as the second start unit is stored in exterior storage medium, in hard disk, then first is opened
The corresponding driver of moving cell selection hard disk is simultaneously run, to load the second of the second start unit the startup code.
And second that post-processing unit 101 is run in the second start unit 103 starts code, and judge the first start unit
The driver for the storage medium whether being stored with 102 needed for second startup code, if then from the first start unit 102
Call the driver of the storage medium and operation.In the present embodiment, second start unit is BOOTLOADER, institute
Stating the driver of the storage medium needed for the second startup code includes the driving journey of the storage medium where the 3rd startup code
Sequence.Second starts code starts code next stage code for first, i.e. SOC, which completes startup, to be needed to run for the first startup generation successively
Code and second starts code.In some embodiments, code that SOC completes to start can also include the 3rd and start code, and described the
Three start code as the second next stage startup code for starting code.Second start can be by from first in code operational process
The driver of storage medium in start unit where the startup of acquisition the 3rd code and execution, so as to from the 3rd start unit
Load the 3rd startup code.
In certain embodiments, the second driver for starting the storage medium needed for code can also include the second startup
Code needs the driver of the storage medium where the data that write or read in the process of running.Such as second start code
Need to read data from DDR in the process of running, and need to write data into hard disk, illustrate second startup code required for
Startup program include the driver of DDR and hard disk.Second start unit can load DDR and hard from the first start unit
The driver of disk, to read data from DDR or data to be write into hard disk.In this way, started by multiplexing first single
The driver of storage medium in member, effectively reduces firmware size, memory space and the running space of BOOTLOADER.
In certain embodiments, described device further includes the 3rd start unit 104.Processing unit 101 is additionally operable to operation
The 3rd in three start units 104 starts code, and judges the 3rd startup code institute whether is stored with the first start unit 102
The driver of the storage medium needed, if then calling the driver and fortune of the storage medium from the first start unit 102
OK.In the present embodiment, the 3rd start unit is operating system nucleus.Described 3rd starts the storage medium needed for code
Driver includes the corresponding driver of storage medium where operating system.Operating system nucleus (kernel) refers to mostly
The core of number operating systems, it manages those portions of memory, file, peripheral hardware and system resource by being used in operating system
It is grouped into.Operating system nucleus usually runs process, and provides the communication between process.Such as operating system is stored in hard disk,
First start unit is stored with the corresponding driver of hard disk, then operating system nucleus, can be from when running the 3rd and starting code
The corresponding driver of hard disk is obtained in first start unit, to load operating system from hard disk, SOC systems is completed and opens
It is dynamic.
In certain embodiments, the quantity of the start unit can be 3 more than, i.e., described device can also include the 4th
Start unit, the 5th start unit etc..As long as there is needed for the 4th start unit, the 5th start unit in the first start unit
The driver for the storage medium wanted, then processing unit can call driver and the operation of the storage medium.In short, open
Moving cell is to start code for storing, and the required startup code of different system completion startup is also different, thus is started
The quantity of unit can be determined according to being actually needed.As long as meet that there is required for other start units in the first start unit
Driver, it is possible to suitable for method of the present invention.
The driving method and device of storage medium, the method in SOC system starting process described in above-mentioned technical proposal
Applied to described device, the method is multiplexed the driving of the storage medium stored in the first start unit by the second start unit
Program, effectively reduces the in the second start unit second firmware size for starting code, also reduces the second startup code pair
The memory space of storage medium and the demand of running space.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only include those
Key element, but also including other elements that are not explicitly listed, or further include as this process, method, article or end
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that also there are other key element in the process including the key element, method, article or terminal device.This
Outside, herein, " being more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
It is to include this number.
It should be understood by those skilled in the art that, the various embodiments described above can be provided as method, apparatus or computer program production
Product.These embodiments can use the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Form.All or part of step in the method that the various embodiments described above are related to can be instructed by program relevant hardware come
Complete, the program can be stored in the storage medium that computer equipment can be read, for performing the various embodiments described above side
All or part of step described in method.The computer equipment, includes but not limited to：Personal computer, server, general-purpose computations
It is machine, special purpose computer, the network equipment, embedded device, programmable device, intelligent mobile terminal, smart home device, wearable
Smart machine, vehicle intelligent equipment etc.；The storage medium, includes but not limited to：RAM, ROM, magnetic disc, tape, CD, sudden strain of a muscle
Deposit, USB flash disk, mobile hard disk, storage card, memory stick, webserver storage, network cloud storage etc..
The various embodiments described above are with reference to method, equipment (system) and the computer program product according to embodiment
Flowchart and/or the block diagram describes.It should be understood that it can be realized by computer program instructions every in flowchart and/or the block diagram
The combination of flow and/or square frame in one flow and/or square frame and flowchart and/or the block diagram.These computers can be provided
Programmed instruction is to the processor of computer equipment to produce a machine so that passes through the finger that the processor of computer equipment performs
Order produces and is used for realization what is specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
The device of function.
These computer program instructions may also be stored in the computer that computer equipment can be guided to work in a specific way and set
In standby readable memory so that the instruction being stored in the computer equipment readable memory produces the manufacture for including command device
Product, which realizes refers in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Fixed function.
These computer program instructions can be also loaded into computer equipment so that performed on a computing device a series of
Operating procedure is used for realization in flow with producing computer implemented processing so that the instruction performed on a computing device provides
The step of function of being specified in one flow of figure or multiple flows and/or one square frame of block diagram or multiple square frames.
Although the various embodiments described above are described, those skilled in the art once know basic wound
The property made concept, then can make these embodiments other change and modification, so the foregoing is merely the embodiment of the present invention,
Not thereby the scope of patent protection of the present invention, every equivalent structure made using description of the invention and accompanying drawing content are limited
Or equivalent process transformation, other related technical areas are directly or indirectly used in, are similarly included in the patent of the present invention
Within protection domain.
Claims (10)
1. the driving method of storage medium, its feature are being that the described method includes following step in a kind of SOC system starting process
Suddenly：
First run in the first start unit starts code；First start unit is also stored with the drive of multiple storage mediums
Dynamic program, described first, which starts code, includes the driver of the storage medium where the second start unit；
Second run in the second start unit starts code, judges the second startup code whether is stored with the first start unit
The driver of required storage medium, if then calling the driver and fortune of the storage medium from the first start unit
OK.
2. the driving method of storage medium in SOC system starting process as claimed in claim 1, it is characterised in that the side
Method further includes step：The 3rd run in the 3rd start unit starts code, judges whether to be stored with the in the first start unit
Three start the driver of the storage medium needed for code, if then calling the driving of the storage medium from the first start unit
Program is simultaneously run.
3. the driving method of storage medium in SOC system starting process as claimed in claim 2, it is characterised in that described
One start unit is BOOT ROM, and the second start unit is BOOTLOADER, and the 3rd start unit is operating system nucleus.
4. the driving method of storage medium in SOC system starting process as claimed in claim 1 or 2, it is characterised in that described
Second driver for starting the storage medium needed for code includes the driver of the storage medium where the 3rd startup code.
5. the driving method of storage medium in SOC system starting process as claimed in claim 3, it is characterised in that described
Three drivers for starting the storage medium needed for code include the corresponding driver of storage medium where operating system.
6. the driving device of storage medium, its feature are being in a kind of SOC system starting process, it is single that described device includes processing
Member, the first start unit, the second start unit, the 3rd start unit；
The processing unit is used to run the first startup code in the first start unit；First start unit is also stored with
The driver of multiple storage mediums, described first, which starts code, includes the driving journey of the storage medium where the second start unit
Sequence；
The processing unit be additionally operable to operation the second start unit in second start code, and judge be in the first start unit
It is no to be stored with the driver of the storage medium needed for the second startup code, if then calling the storage from the first start unit
The driver of medium and operation.
7. the driving device of storage medium in SOC system starting process as claimed in claim 6, it is characterised in that the place
Reason unit is additionally operable to the 3rd startup code in the 3rd start unit of operation, and judges whether be stored with the first start unit
3rd starts the driver of the storage medium needed for code, if then calling the drive of the storage medium from the first start unit
Dynamic program is simultaneously run.
8. the driving device of storage medium in SOC system starting process as claimed in claim 7, it is characterised in that described
One start unit is BOOT ROM, and the second start unit is BOOTLOADER, and the 3rd start unit is operating system nucleus.
9. the driving device of storage medium in SOC system starting process as claimed in claims 6 or 7, it is characterised in that described
Second driver for starting the storage medium needed for code includes the driver of the storage medium where the 3rd startup code.
10. the driving device of storage medium in SOC system starting process as claimed in claim 8, it is characterised in that described
Three drivers for starting the storage medium needed for code include the corresponding driver of storage medium where operating system.
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| CN116541334A (en) * | 2023-06-27 | 2023-08-04 | 苏州浪潮智能科技有限公司 | PCIE equipment operation time file processing method, device and equipment |
| CN116541334B (en) * | 2023-06-27 | 2023-09-26 | 苏州浪潮智能科技有限公司 | PCIE equipment operation time file processing method, device and equipment |
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Address after: 350003 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Applicant after: Ruixin Microelectronics Co., Ltd Address before: 350003 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Applicant before: Fuzhou Rockchips Electronics Co.,Ltd. |
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