soc/cavium/cn81xx: Fix minor things
* Move cbmem.c to cn81xx folder
* Store CBMEM below 4 GiB
* Make sure CBMEM doesn't overlap with ATF scratchpad
* Fix ATF scratchpad not marked as reserved due to wrong calculation
* The scratchpad is the last 1 MiB at the end of DRAM.
Tested on Cavium CN81xx EVB:
The ATF scratchpad is now marked reserved and the configuration tables
are located below 4 GiB. Linux still boots.
Change-Id: Ibbc8b586f04bd6867c045f5546b32a77c057ac74
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/27955
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/cavium/cn81xx/soc.c b/src/soc/cavium/cn81xx/soc.c
index b575ca4..8efcb13 100644
--- a/src/soc/cavium/cn81xx/soc.c
+++ b/src/soc/cavium/cn81xx/soc.c
@@ -309,7 +309,8 @@
BM_MEM_RESERVED);
/* Scratchpad for ATF SATA quirks */
- bootmem_add_range(sdram_size_mb() * KiB, 1 * MiB, BM_MEM_RESERVED);
+ bootmem_add_range((sdram_size_mb() - 1) * MiB, 1 * MiB,
+ BM_MEM_RESERVED);
}
static void soc_read_resources(device_t dev)