diff options
| author | Marek Vasut <marek.vasut@gmail.com> | 2021-09-10 22:47:15 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-09-23 14:15:32 -0400 |
| commit | eeaa3fe65270758ab0bdb1515e14f9bf936d3a25 (patch) | |
| tree | 031030453080465ee7bd67079fa49ebdb6e7afe0 /arch/riscv | |
| parent | 6a0890a61e10d5f8b71e99c7d732bd65cebe31b4 (diff) | |
lmb: riscv: Add arch_lmb_reserve()
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.
Reviewed-by: Rick Chen <rick@andestech.com>
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>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/lib/bootm.c | 13 |
1 files changed, 13 insertions, 0 deletions
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); +} |