From 40fef0490610686022f99b8e070df7ac761c11a0 Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Sun, 2 Dec 2012 04:55:18 +0000 Subject: 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 Signed-off-by: Che-Liang Chiou Signed-off-by: Simon Glass --- README | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'README') diff --git a/README b/README index ed7d270..c7aab18 100644 --- a/README +++ b/README @@ -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 -- cgit v1.1