S32G_How_to_Put_A53_to_WFI

[#1]

Chinese version

S32G的partition off流程要求核稳定的进
入到WFI状态，本文说明如何修改Linux内核，
在A53 Linux关机或kernel panic时，如何让所
有A53 Core进入WFI。

目录
1 背景说明与参考资料 .................................................. 2
1.1 背景说明 ................................................................. 2
1.2 参考资料 ................................................................. 5
1.3 测试工具 ................................................................. 6
2 Panic ......................................................................... 7
2.1 Panic代码流程分析 ................................................. 7
2.2 BSP30修改说明(Non-ATF) ................................... 10
2.3 BSP36修改说明(ATF) .......................................... 15
3 Poweoff ................................................................... 17
3.1 Poweroff代码流程分析 ......................................... 17
3.2 BSP30修改说明(Non-ATF) ................................... 19
3.3 BSP36修改说明(ATF) .......................................... 20
4 Reboot情况说明 ....................................................... 20
5 STR情况说明 ........................................................... 21

Contents

1    Background and Reference. 2

1.1  Background. 2

1.2  Reference materials. 5

1.3  Test Tools. 6

2    Panic. 7

2.1  Panic code flow analysis. 7

2.2  BSP30 Modification (Non-ATF) 10

2.3  BSP36 Modification (ATF) 16

3    Poweoff 18

3.1  Poweroff code analysis. 18

3.2  BSP30 Modification (Non-ATF) 20

3.3  BSP36 Modification (ATF) 21

4    Reboot Description. 21

5    STR Description. 21