Hi Deepak, Jagan,
On 2020/4/23 下午7:29, Jagan Teki wrote:
On Thu, Apr 23, 2020 at 4:37 PM Deepak Das deepakdas.linux@gmail.com wrote:
Hi Jagan,
upstream uboot has the support for nanopi M4 board with 4GB LPDDR3 RAM. I have a nanopi M4 board with 2GB DDR3 RAM and able to boot this board by using ddr3 configuration.
+// SPDX-License-Identifier: GPL-2.0+ +/*
- Copyright (C) 2019 Jagan Teki jagan@amarulasolutions.com
- */
+#include "rk3399-nanopi4-u-boot.dtsi" +#include "rk3399-sdram-ddr3-1866.dtsi"
+/* #include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi" */
how to handle this situation? do we need to treat this as a new board support?
Possible approach is to check the chip type and vendor during probe and source the respective .dtsi
YouMin and Kever, any ideas?
We can auto detect the different capacity for the same DRAM type, but if the dram type
is not the same, it usually treat as different boards.
And this is the first time for a board use two different type DRAM, does both type of nanopi M4
with DDR3 and LPDDR3 are available on the market, or maybe one of them is internal version?
Thanks,
- Kever
Jagan.