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![]() Some Armada 8K boards like Macchiatobin and Clearfog GT-8K use RAM from external DIMM. Hard coding the RAM size in the device-tree is not convenient. Fortunately, the ATF that initializes the RAM knows the size of RAM, and U-Boot can query the ATF using a SMC call. The ATF maps the lower 3G of RAM starting at address 0. Higher RAM is mapped at 4G. This leaves a 1G hole between 3G and 4G for IO peripherals. Use a second bi_dram[] entry to describe the higher RAM area. As a result, CONFIG_NR_DRAM_BANKS must be set to 2 to use more than 3GB RAM. This code in this commit is mostly taken from downstream Marvell U-Boot code by Grzegorz Jaszczyk. Cc: Grzegorz Jaszczyk <jaz@semihalf.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Stefan Roese <sr@denx.de> |
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.. | ||
armada8k | ||
armada3700 | ||
include/mach | ||
serdes | ||
.gitignore | ||
arm64-common.c | ||
cpu.c | ||
dram.c | ||
efuse.c | ||
gpio.c | ||
Kconfig | ||
kwbimage.cfg.in | ||
lowlevel_spl.S | ||
Makefile | ||
mbus.c | ||
spl.c | ||
timer.c |