diff options
| author | Rick Chen <rick@andestech.com> | 2018-03-29 10:08:33 +0800 |
|---|---|---|
| committer | Andes <uboot@andestech.com> | 2018-03-30 13:13:56 +0800 |
| commit | d58717e42559189a226ea800173147399c8edef9 (patch) | |
| tree | a94bffe91400f0486571454a3db56733899c4c7e /include | |
| parent | 2bc5bea9e160c7efe5a268a55b440ac8cf848b48 (diff) | |
| download | u-boot-d58717e42559189a226ea800173147399c8edef9.tar.gz | |
riscv: ae250: Support DT provided by the board at runtime
Enable CONFIG_OF_BOAD to support delivery dtb to u-boot
at run time instead of embedded.
There are two methods to delivery dtb.
1 Pass from loader:
When u-boot boot from RAM, gdb or loader can pass dtb
via a2 to u-boot dynamically. Of course gdb or loader
shall be in charge of dtb delivery.
2 Configure CONFIG_SYS_FDT_BASE:
It can be configured as RAM or ROM base statically,
no mater u-boot boot from RAM or ROM.
If it was configured as ROM base, dtb can be burned
into ROM(spi flash) by spi driver.
Meanwhile remove CONFIG_SKIP_LOWLEVEL_INIT which is
useless in nx25-ae250 configuration.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Cc: Greentime Hu <green.hu@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/nx25-ae250.h | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/include/configs/nx25-ae250.h b/include/configs/nx25-ae250.h index 3c888fdd50..0e4c431cab 100644 --- a/include/configs/nx25-ae250.h +++ b/include/configs/nx25-ae250.h @@ -11,18 +11,9 @@ /* * CPU and Board Configuration Options */ -#define CONFIG_SKIP_LOWLEVEL_INIT - #define CONFIG_BOOTP_SEND_HOSTNAME #define CONFIG_BOOTP_SERVERIP -#ifdef CONFIG_SKIP_LOWLEVEL_INIT -#ifdef CONFIG_OF_CONTROL -#undef CONFIG_OF_SEPARATE -#define CONFIG_OF_EMBED -#endif -#endif - /* * Miscellaneous configurable options */ @@ -50,6 +41,9 @@ */ #define CONFIG_SYS_MALLOC_LEN (512 << 10) +/* DT blob (fdt) address */ +#define CONFIG_SYS_FDT_BASE 0x000f0000 + /* * Physical Memory Map */ |