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Diffstat (limited to 'Documentation/xtensa/booting.txt')
| -rw-r--r-- | Documentation/xtensa/booting.txt | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/Documentation/xtensa/booting.txt b/Documentation/xtensa/booting.txt deleted file mode 100644 index 402b33a2619f..000000000000 --- a/Documentation/xtensa/booting.txt +++ /dev/null @@ -1,19 +0,0 @@ -Passing boot parameters to the kernel. - -Boot parameters are represented as a TLV list in the memory. Please see -arch/xtensa/include/asm/bootparam.h for definition of the bp_tag structure and -tag value constants. First entry in the list must have type BP_TAG_FIRST, last -entry must have type BP_TAG_LAST. The address of the first list entry is -passed to the kernel in the register a2. The address type depends on MMU type: -- For configurations without MMU, with region protection or with MPU the - address must be the physical address. -- For configurations with region translarion MMU or with MMUv3 and CONFIG_MMU=n - the address must be a valid address in the current mapping. The kernel will - not change the mapping on its own. -- For configurations with MMUv2 the address must be a virtual address in the - default virtual mapping (0xd0000000..0xffffffff). -- For configurations with MMUv3 and CONFIG_MMU=y the address may be either a - virtual or physical address. In either case it must be within the default - virtual mapping. It is considered physical if it is within the range of - physical addresses covered by the default KSEG mapping (XCHAL_KSEG_PADDR.. - XCHAL_KSEG_PADDR + XCHAL_KSEG_SIZE), otherwise it is considered virtual. |