diff options
Diffstat (limited to 'cpu/ppc4xx/cpu_init.c')
| -rw-r--r-- | cpu/ppc4xx/cpu_init.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c index e2d0402781..dee9807717 100644 --- a/cpu/ppc4xx/cpu_init.c +++ b/cpu/ppc4xx/cpu_init.c @@ -301,6 +301,19 @@ cpu_init_f (void) val |= 0x400; mtsdr(SDR0_USB2HOST_CFG, val); #endif /* CONFIG_460EX */ + +#if defined(CONFIG_405EX) || \ + defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ + defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ + defined(CONFIG_460SX) + /* + * Set PLB4 arbiter (Segment 0 and 1) to 4 deep pipeline read + */ + mtdcr(plb0_acr, (mfdcr(plb0_acr) & ~plb0_acr_rdp_mask) | + plb0_acr_rdp_4deep); + mtdcr(plb1_acr, (mfdcr(plb1_acr) & ~plb1_acr_rdp_mask) | + plb1_acr_rdp_4deep); +#endif /* CONFIG_440SP/SPE || CONFIG_460EX/GT || CONFIG_405EX */ } /* |
