[U-Boot] [PATCH 2/9] rockchip: support 4GB DRAM on 32bit systems

[Carlo Caione]

On Thu, 2018-07-26 at 15:59 +0200, Philipp Tomsich wrote:
> The calculation in `rockchip_sdram_size` would overflow for 4GB on
> 32bit systems (i.e. when PHYS_64BIT is not defined).
> 
> This makes the internal variables and the signature prototype use a
> u64 to ensure that we can represent the 33rd bit (as in '4GB').
> 

Hi Philipp,
just to let you know that this is still not working on the veyron jerry
chromebook with 4GB I have here (RK3288). The boot stops at:

U-Boot SPL 2018.07-00403-gdbe6ef8276 (Jul 26 2018 - 17:21:11 +0100)
Trying to boot from SPI

U-Boot 2018.07-00403-gdbe6ef8276 (Jul 26 2018 - 17:21:11 +0100)

Model: Google Jerry
DRAM:  0 Bytes

I'm still investigating why but for sure there are several points to
fix to have a proper debug, see [0].

Also I was wondering if we should also fix get_effective_memsize() and
gd->bd->bi_dram[].size

[0]https://gist.github.com/carlocaione/b93cfd9ee71e07fcf68d5c02256ff0fa

Cheers,

-- 
Carlo Caione <carlo at endlessm.com>