diff options
Diffstat (limited to 'cpu/mpc8260/speed.c')
| -rw-r--r-- | cpu/mpc8260/speed.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/cpu/mpc8260/speed.c b/cpu/mpc8260/speed.c index a761a178b..360404f0c 100644 --- a/cpu/mpc8260/speed.c +++ b/cpu/mpc8260/speed.c @@ -25,6 +25,8 @@ #include <mpc8260.h> #include <asm/processor.h> +DECLARE_GLOBAL_DATA_PTR; + /* ------------------------------------------------------------------------- */ /* Bus-to-Core Multiplier */ @@ -101,8 +103,6 @@ corecnf_t corecnf_tab[] = { int get_clocks (void) { - DECLARE_GLOBAL_DATA_PTR; - volatile immap_t *immap = (immap_t *) CFG_IMMR; ulong clkin; ulong sccr, dfbrg; @@ -159,11 +159,9 @@ int get_clocks (void) int prt_8260_clks (void) { - DECLARE_GLOBAL_DATA_PTR; - volatile immap_t *immap = (immap_t *) CFG_IMMR; ulong sccr, dfbrg; - ulong scmr, corecnf, busdf, cpmdf, plldf, pllmf; + ulong scmr, corecnf, busdf, cpmdf, plldf, pllmf, pcidf; corecnf_t *cp; sccr = immap->im_clkrst.car_sccr; @@ -175,6 +173,7 @@ int prt_8260_clks (void) cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT; plldf = (scmr & SCMR_PLLDF) ? 1 : 0; pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT; + pcidf = (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT; cp = &corecnf_tab[corecnf]; @@ -204,8 +203,9 @@ int prt_8260_clks (void) cp->vco_div, cp->freq_60x, cp->freq_core); printf (" - dfbrg %ld, corecnf 0x%02lx, busdf %ld, cpmdf %ld, " - "plldf %ld, pllmf %ld\n", dfbrg, corecnf, busdf, cpmdf, plldf, - pllmf); + "plldf %ld, pllmf %ld, pcidf %ld\n", + dfbrg, corecnf, busdf, cpmdf, + plldf, pllmf, pcidf); printf (" - vco_out %10ld, scc_clk %10ld, brg_clk %10ld\n", gd->vco_out, gd->scc_clk, gd->brg_clk); @@ -215,9 +215,20 @@ int prt_8260_clks (void) if (sccr & SCCR_PCI_MODE) { uint pci_div; + uint pcidf = (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT; - pci_div = ( (sccr & SCCR_PCI_MODCK) ? 2 : 1) * - ( ( (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT) + 1); + if (sccr & SCCR_PCI_MODCK) { + pci_div = 2; + if (pcidf == 9) { + pci_div *= 5; + } else if (pcidf == 0xB) { + pci_div *= 6; + } else { + pci_div *= (pcidf + 1); + } + } else { + pci_div = pcidf + 1; + } printf (" - pci_clk %10ld\n", (gd->cpm_clk * 2) / pci_div); } @@ -225,5 +236,3 @@ int prt_8260_clks (void) return (0); } - -/* ------------------------------------------------------------------------- */ |