Hi Bin,
On Fri, 22 Feb 2019 at 00:19, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Wed, Jan 30, 2019 at 12:00 PM Simon Glass sjg@chromium.org wrote:
At present SDRAM is always set up in U-Boot proper. Allow this to be done
I don't understand. I thought SDRAM was already set up in the U-Boot SPL in the 64-bit build. The U-Boot proper needs a MMU table which resides in RAM, so without RAM being initialized first there is no way for U-Boot proper to run. Am I missing anything?
I'll update this to make it clear it is just for broadwell, which doesn't support 64-bit.
Regards, Simon
in SPL instead so that U-Boot proper can be loaded into SDRAM and run from there. This allows U-Boot to be compressed to reduce space, since it is not necessary to run it directly from flash.
Signed-off-by: Simon Glass sjg@chromium.org
arch/x86/cpu/broadwell/Makefile | 2 +- arch/x86/cpu/broadwell/northbridge.c | 93 ++++++++++++++++++++++++++++ arch/x86/cpu/broadwell/sdram.c | 93 ---------------------------- 3 files changed, 94 insertions(+), 94 deletions(-)
Regards, Bin