hi:
How to update 1G DDR3 to 2G DDR3 on i.MX6QSabresd board.What should I do with uboot ?
Now I am using the version yocto 3.14.52.u-boot version is 2015.04.
I have try to do some change like this How to update 1G DDR3 to 2G DDR3 on i.MX6QSabresd board

But it doesn't work. It is still 1G size DDR. Here is the log
U-Boot 2015.04-imx_v2015.04_3.14.52_1.1.0_ga+g6cf684a (Apr 20 2016 - 16:01:47)
CPU: Freescale i.MX6Q rev1.2 at 792 MHz
CPU: Temperature 31 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 1 GiB
PMIC: PFUZE100 ID=0x10
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment
No panel detected: default to Hannstar-XGA
Display: Hannstar-XGA (1024x768)
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc2(part 0) is current device
Net: FEC [PRIME]
Error: FEC address not set.
Normal Boot
Hit any key to stop autoboot: 0