Re: [PATCH v4 07/27] rockchip: Enable building a SPI ROM image on bob

Hi Kever,

On Mon, 10 Aug 2020 at 01:47, Kever Yang kever.yang@rock-chips.com wrote:

Hi Simon,

On 2020/8/8 下午9:28, Simon Glass wrote:

+#ifdef CONFIG_ROCKCHIP_SPI_IMAGE +&binman {

• rom {
  

•         filename = "u-boot.rom";
  

•         size = <0x400000>;
  

•         pad-byte = <0xff>;
  

•         mkimage {
  

•                 args = "-n rk3399 -T rkspi";
  

•                 u-boot-spl {
  

•                 };
  

•         };
  

•         u-boot-img {
  

•                 offset = <0x40000>;
  

•         };
  

•         u-boot {
  

•                 offset = <0x300000>;
  

•         };
  

•         fdtmap {
  

•         };
  
  

There is a output name 'u-boot.rom' including:

• u-boot-spl output with mkimage cmd at offset 0?

Yes

• u-boot-img at offset 0x40000, how this is generated and what is

inside? does binary in bl31.elf included?

It is just the u-boot.img file created by the Makefile. There is no BL31.

• u-boot at offset 0x300000, what is this binary and where is it from?

This is u-boot.bin as created by the Makefile.

Why do you need both u-boot.img and u-boot.bin, I don't understand this.

Neither do I. It needs a look.

And if there is no BL31, the system is not possible to boot up.

This was done quite a while ago with the objective of getting a basic U-Boot going on this board, so it needs more work to finish it off.

Regards, SImon