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Chip supporting multi-security boot and startup method for chip

A secure boot and chip technology, applied in the boot field, can solve problems such as single boot mode and failure to meet product requirements

Inactive Publication Date: 2017-06-27
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, baseband chips were mainly used in data card products, and the boot method used was relatively simple, including hardware boot controller (bootctrl, boot controller) and software flash boot (nandflash boot) methods
With the increase of product application forms of baseband chips, a single boot method can no longer meet product requirements

Method used

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  • Chip supporting multi-security boot and startup method for chip
  • Chip supporting multi-security boot and startup method for chip
  • Chip supporting multi-security boot and startup method for chip

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Embodiment Construction

[0077] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0078] In order to overcome the problems and defects in the prior art that the data card uses a single boot mode, insufficient system security, and inconvenient programming, the embodiment of the present invention provides a chip supporting multiple secure boots and a starting method thereof. In smart machine products, communication interface methods such as usb hsic boot, sdio slave boot, and uart boot are required to connect and start with application processor (AP, Application Processer) chips; in data cards and uFi products, nandflash boot, emmc boot, Spinandflash and ...

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Abstract

The invention discloses a chip supporting multi-security boot and a startup method for the chip. The method comprises the steps of reading a register value from a register after system initialization; determining boot operation corresponding to the register value, and performing check on configuration field information; and after the check is passed, starting the corresponding boot operation to read data, and performing security verification on the data.

Description

technical field [0001] The invention relates to a boot technology in the field of embedded chips, in particular to a chip supporting multiple safe boots and a starting method thereof. Background technique [0002] The baseband chip adopts an embedded architecture, and is responsible for the initialization of the system hardware and the bootloading of the secondary boot program through the bootrom (boot code in read only memory). At the same time, the bootrom is solidified in the memory (ROM) of the chip. Chips are used in many product fields, such as smart phones, data cards, etc., and each product form may use a different boot method. In this case, system security has received more and more attention. Therefore, The implementation of bootrom that supports multiple safe boot methods is very important for the application of mobile phone baseband chips. [0003] In the past, baseband chips were mainly used in data card products, and the boot method used was relatively simple...

Claims

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Application Information

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IPC IPC(8): G06F21/57G06F9/445
CPCG06F21/57G06F21/575G06F8/66
Inventor 唐剑
Owner SANECHIPS TECH CO LTD
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