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: Atish Patra atish.patra@wdc.com Cc: Leo ycliang@andestech.com Cc: Rick Chen rick@andestech.com Cc: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com Cc: Tom Rini trini@konsulko.com --- arch/riscv/lib/bootm.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/arch/riscv/lib/bootm.c b/arch/riscv/lib/bootm.c index 8dd1820540..ff1bdf7131 100644 --- a/arch/riscv/lib/bootm.c +++ b/arch/riscv/lib/bootm.c @@ -135,3 +135,16 @@ int do_bootm_vxworks(int flag, int argc, char *const argv[], { return do_bootm_linux(flag, argc, argv, images); } + +static ulong get_sp(void) +{ + ulong ret; + + asm("mv %0, sp" : "=r"(ret) : ); + return ret; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096); +}