24 Oct
2023
24 Oct
'23
9:28 p.m.
On Tue, Oct 24, 2023 at 06:38:43PM +0100, Caleb Connolly wrote:
Add a new config option to allow u-boot to reuse the FDT provided by the previous stage bootloader when available.
On some boards the previous stage bootloader can populate platform-specific parts of the devicetree such as the memory node, this allows us to avoid hardcoding it in u-boot and instead determine it dynamically at runtime.
Signed-off-by: Caleb Connolly caleb.connolly@linaro.org
[snip]
+/**
- get_prev_bl_fdt_addr - When u-boot is chainloaded, get the address
- of the FDT passed by the previous bootloader.
- Return: the address of the FDT passed by the previous bootloader
- or 0 if not found.
- */
+phys_addr_t get_prev_bl_fdt_addr(void); +#else +#define get_prev_bl_fdt_addr() 0LLU #endif
Question in v1 aside, why do you need the dummy define here?
--
Tom