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 Goldschmidt simon.k.r.goldschmidt@gmail.com Cc: Thomas Chou thomas@wytron.com.tw Cc: Tom Rini trini@konsulko.com --- arch/nios2/lib/bootm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/arch/nios2/lib/bootm.c b/arch/nios2/lib/bootm.c index 5037467151..3cb59bd977 100644 --- a/arch/nios2/lib/bootm.c +++ b/arch/nios2/lib/bootm.c @@ -10,6 +10,9 @@ #include <image.h> #include <irq_func.h> #include <log.h> +#include <asm/global_data.h> + +DECLARE_GLOBAL_DATA_PTR;
#define NIOS_MAGIC 0x534f494e /* enable command line and initrd passing */
@@ -60,3 +63,16 @@ int do_bootm_linux(int flag, int argc, char *const argv[],
return 1; } + +static ulong get_sp(void) +{ + ulong ret; + + asm("mov %0, sp" : "=r"(ret) : ); + return ret; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096); +}