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| author | Marek Vasut <marek.vasut@gmail.com> | 2021-09-10 22:47:14 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-09-23 14:15:32 -0400 |
| commit | 6a0890a61e10d5f8b71e99c7d732bd65cebe31b4 (patch) | |
| tree | 166ccc0c4b8b806d8aee7d202716d92dc749f9aa | |
| parent | a02c18f31f8b99418be8b17135c7a10910dc10e8 (diff) | |
lmb: nds32: 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: Rick Chen <rick@andestech.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
| -rw-r--r-- | arch/nds32/lib/bootm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/nds32/lib/bootm.c b/arch/nds32/lib/bootm.c index 4cb0f530ae..a7c8978f23 100644 --- a/arch/nds32/lib/bootm.c +++ b/arch/nds32/lib/bootm.c @@ -245,3 +245,16 @@ static void setup_end_tag(struct bd_info *bd) } #endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ + +static ulong get_sp(void) +{ + ulong ret; + + asm("move %0, $sp" : "=r"(ret) : ); + return ret; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096); +} |