Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic(). It is rather likely this architecture also needs to cover U-Boot with LMB before booting Linux.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Simon Glass sjg@chromium.org Cc: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com Cc: Tom Rini trini@konsulko.com --- arch/x86/lib/bootm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/arch/x86/lib/bootm.c b/arch/x86/lib/bootm.c index 733dd71257..667e5e689e 100644 --- a/arch/x86/lib/bootm.c +++ b/arch/x86/lib/bootm.c @@ -223,3 +223,21 @@ int do_bootm_linux(int flag, int argc, char *const argv[],
return boot_jump_linux(images); } + +static ulong get_sp(void) +{ + ulong ret; + +#if CONFIG_IS_ENABLED(X86_64) + ret = gd->start_addr_sp; +#else + asm("mov %%esp, %0" : "=r"(ret) : ); +#endif + + return ret; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096); +}