diff options
| author | Mario Six <mario.six@gdsys.cc> | 2019-01-21 09:18:20 +0100 |
|---|---|---|
| committer | Mario Six <mario.six@gdsys.cc> | 2019-05-21 07:52:34 +0200 |
| commit | 1e718f43de1bee73fe727597101865f81ff873f5 (patch) | |
| tree | 8d0072f93611aac314bf5dea3dc452de96ca8a91 /arch/powerpc/cpu | |
| parent | 8835836ae74d1b340f079ce49c3f1cc810452d0d (diff) | |
mpc83xx: Replace ppcDWstore with inline assembly
ppcDWstore/ppcDWload are hardly used by any board, but since they're
implemented in start.S, they're always present in every U-Boot image,
even if they're not needed.
Re-implement these fuctions in C with inline assembly, so that the
compiler can decide when to actually include them.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Diffstat (limited to 'arch/powerpc/cpu')
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/cpu.c | 18 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/start.S | 12 |
2 files changed, 18 insertions, 12 deletions
diff --git a/arch/powerpc/cpu/mpc83xx/cpu.c b/arch/powerpc/cpu/mpc83xx/cpu.c index 4ea4249aff..9c67099a17 100644 --- a/arch/powerpc/cpu/mpc83xx/cpu.c +++ b/arch/powerpc/cpu/mpc83xx/cpu.c @@ -229,3 +229,21 @@ int cpu_mmc_init(bd_t *bis) return 0; #endif } + +void ppcDWstore(unsigned int *addr, unsigned int *value) +{ + asm("lfd 1, 0(%1)\n\t" + "stfd 1, 0(%0)" + : + : "r" (addr), "r" (value) + : "memory"); +} + +void ppcDWload(unsigned int *addr, unsigned int *ret) +{ + asm("lfd 1, 0(%0)\n\t" + "stfd 1, 0(%1)" + : + : "r" (addr), "r" (ret) + : "memory"); +} diff --git a/arch/powerpc/cpu/mpc83xx/start.S b/arch/powerpc/cpu/mpc83xx/start.S index 9fbbf59ce2..f4a8a766c3 100644 --- a/arch/powerpc/cpu/mpc83xx/start.S +++ b/arch/powerpc/cpu/mpc83xx/start.S @@ -119,18 +119,6 @@ disable_addr_trans: mtspr SRR1, r3 rfi - .globl ppcDWstore -ppcDWstore: - lfd 1, 0(r4) - stfd 1, 0(r3) - blr - - .globl ppcDWload -ppcDWload: - lfd 1, 0(r3) - stfd 1, 0(r4) - blr - #ifndef CONFIG_DEFAULT_IMMR #error CONFIG_DEFAULT_IMMR must be defined #endif /* CONFIG_DEFAULT_IMMR */ |