diff options
Diffstat (limited to 'cpu/mpc86xx/mp.c')
-rw-r--r-- | cpu/mpc86xx/mp.c | 51 |
1 files changed, 33 insertions, 18 deletions
diff --git a/cpu/mpc86xx/mp.c b/cpu/mpc86xx/mp.c index 5014401ddc..2940673c7c 100644 --- a/cpu/mpc86xx/mp.c +++ b/cpu/mpc86xx/mp.c @@ -4,20 +4,45 @@ #include <ioports.h> #include <lmb.h> #include <asm/io.h> -#include "mp.h" +#include <asm/mp.h> DECLARE_GLOBAL_DATA_PTR; -#if (CONFIG_NUM_CPUS > 1) -void cpu_mp_lmb_reserve(struct lmb *lmb) +int cpu_reset(int nr) +{ + /* dummy function so common/cmd_mp.c will build + * should be implemented in the future, when cpu_release() + * is supported. Be aware there may be a similiar bug + * as exists on MPC85xx w/its PIC having a timing window + * associated to resetting the core */ + return 1; +} + +int cpu_status(int nr) { - u32 bootpg; + /* dummy function so common/cmd_mp.c will build */ + return 0; +} + +int cpu_release(int nr, int argc, char *argv[]) +{ + /* dummy function so common/cmd_mp.c will build + * should be implemented in the future */ + return 1; +} +u32 determine_mp_bootpg(void) +{ /* if we have 4G or more of memory, put the boot page at 4Gb-1M */ if ((u64)gd->ram_size > 0xfffff000) - bootpg = 0xfff00000; - else - bootpg = gd->ram_size - (1024 * 1024); + return (0xfff00000); + + return (gd->ram_size - (1024 * 1024)); +} + +void cpu_mp_lmb_reserve(struct lmb *lmb) +{ + u32 bootpg = determine_mp_bootpg(); /* tell u-boot we stole a page */ lmb_reserve(lmb, bootpg, 4096); @@ -31,18 +56,9 @@ void setup_mp(void) { extern ulong __secondary_start_page; ulong fixup = (ulong)&__secondary_start_page; - u32 bootpg; + u32 bootpg = determine_mp_bootpg(); u32 bootpg_va; - /* - * If we have 4G or more of memory, put the boot page at 4Gb-1M. - * Otherwise, put it at the very end of RAM. - */ - if (gd->ram_size > 0xfffff000) - bootpg = 0xfff00000; - else - bootpg = gd->ram_size - (1024 * 1024); - if (bootpg >= CONFIG_SYS_MAX_DDR_BAT_SIZE) { /* We're not covered by the DDR mapping, set up BAT */ write_bat(DBAT7, CONFIG_SYS_SCRATCH_VA | BATU_BL_128K | @@ -65,4 +81,3 @@ void setup_mp(void) out_be32((uint *)(CONFIG_SYS_CCSRBAR + 0x20), 0x80000000 | (bootpg >> 12)); } -#endif |