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| author | Gabe Black <gabeblack@chromium.org> | 2012-12-02 04:55:18 +0000 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2012-12-06 14:30:40 -0800 |
| commit | 40fef0490610686022f99b8e070df7ac761c11a0 (patch) | |
| tree | d3338158170744d00fb569ffac2edecbf72dbd2c /README | |
| parent | ec516c489969c1c12e9b26900facee6efd60c938 (diff) | |
| download | u-boot-imx-40fef0490610686022f99b8e070df7ac761c11a0.zip u-boot-imx-40fef0490610686022f99b8e070df7ac761c11a0.tar.gz u-boot-imx-40fef0490610686022f99b8e070df7ac761c11a0.tar.bz2 | |
Introduce arch_phys_memset which works like memset but on physical memory
The default implementation of this function is just memset, but other
implementations will be needed when physical memory isn't accessible by
U-Boot using normal addressing mechanisms.
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -2200,6 +2200,14 @@ CBFS (Coreboot Filesystem) support HERMES, IP860, RPXlite, LWMON, FLAGADM, TQM8260 +- Access to physical memory region (> 4GB) + Some basic support is provided for operations on memory not + normally accessible to U-Boot - e.g. some architectures + support access to more than 4GB of memory on 32-bit + machines using physical address extension or similar. + Define CONFIG_PHYSMEM to access this basic support, which + currently only supports clearing the memory. + - Error Recovery: CONFIG_PANIC_HANG |