On 05/23/2017 12:42 PM, Franklin S Cooper Jr wrote:
Runtime U-boot dtb selection is generally a two step process. First step is to simply use an initial generic dtb. The second step is to select the dtb and perhaps execute additional code ones U-boot knows what board it is running on. Embedded_dtb_select handles the second step by allowing board specific code to run and perform what ever necessary configuration that is needed.
Signed-off-by: Franklin S Cooper Jr fcooper@ti.com
common/Kconfig | 10 ++++++++++ common/board_f.c | 3 +++ include/common.h | 4 ++++ 3 files changed, 17 insertions(+)
diff --git a/common/Kconfig b/common/Kconfig index 2429953..b6327f0 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -421,6 +421,16 @@ config SYS_STDIO_DEREGISTER
endmenu
+config DTB_RESELECT
- bool "Support swapping dtbs at a later point in boot"
- depends on FIT_EMBED
- default n
I will be sending a new rev. I missed dropping the above statement based on the rev 1 comment.
- help
It is possible during initial boot you may need to use a genericdtb until you can fully determine the board your running on. Thisconfig allows boards to implement a function at a later pointduring boot to switch to the "correct" dtb.config FIT_EMBED bool "Support a FIT image embedded in the U-boot image" default n diff --git a/common/board_f.c b/common/board_f.c index a212f2b..b383239 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -759,6 +759,9 @@ static const init_fnc_t init_sequence_f[] = { #if defined(CONFIG_DISPLAY_CPUINFO) print_cpuinfo, /* display cpu info (and speed) */ #endif +#if defined(CONFIG_DTB_RESELECT)
- embedded_dtb_select,
+#endif #if defined(CONFIG_DISPLAY_BOARDINFO) show_board_info, #endif diff --git a/include/common.h b/include/common.h index 45f190a..ebc716e 100644 --- a/include/common.h +++ b/include/common.h @@ -478,6 +478,10 @@ void pci_init_board(void); #endif #endif
+#if defined(CONFIG_DTB_RESELECT) +int embedded_dtb_select(void); +#endif
int misc_init_f (void); int misc_init_r (void);