diff options
Diffstat (limited to 'cpu/mpc85xx/cpu_init.c')
| -rw-r--r-- | cpu/mpc85xx/cpu_init.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/cpu/mpc85xx/cpu_init.c b/cpu/mpc85xx/cpu_init.c index a54cf5d15..5f6651182 100644 --- a/cpu/mpc85xx/cpu_init.c +++ b/cpu/mpc85xx/cpu_init.c @@ -291,6 +291,25 @@ int cpu_init_r(void) asm("msync;isync"); cache_ctl = l2cache->l2ctl; + +#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR) + if (cache_ctl & MPC85xx_L2CTL_L2E) { + /* Clear L2 SRAM memory-mapped base address */ + out_be32(&l2cache->l2srbar0, 0x0); + out_be32(&l2cache->l2srbar1, 0x0); + + /* set MBECCDIS=0, SBECCDIS=0 */ + clrbits_be32(&l2cache->l2errdis, + (MPC85xx_L2ERRDIS_MBECC | + MPC85xx_L2ERRDIS_SBECC)); + + /* set L2E=0, L2SRAM=0 */ + clrbits_be32(&l2cache->l2ctl, + (MPC85xx_L2CTL_L2E | + MPC85xx_L2CTL_L2SRAM_ENTIRE)); + } +#endif + l2siz_field = (cache_ctl >> 28) & 0x3; switch (l2siz_field) { |