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Diffstat (limited to 'Documentation/arm/Booting')
| -rw-r--r-- | Documentation/arm/Booting | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/arm/Booting b/Documentation/arm/Booting index 4e686a2ed91e..a341d87d276e 100644 --- a/Documentation/arm/Booting +++ b/Documentation/arm/Booting | |||
| @@ -164,3 +164,8 @@ In either case, the following conditions must be met: | |||
| 164 | - The boot loader is expected to call the kernel image by jumping | 164 | - The boot loader is expected to call the kernel image by jumping |
| 165 | directly to the first instruction of the kernel image. | 165 | directly to the first instruction of the kernel image. |
| 166 | 166 | ||
| 167 | On CPUs supporting the ARM instruction set, the entry must be | ||
| 168 | made in ARM state, even for a Thumb-2 kernel. | ||
| 169 | |||
| 170 | On CPUs supporting only the Thumb instruction set such as | ||
| 171 | Cortex-M class CPUs, the entry must be made in Thumb state. | ||