Initial revision
diff --git a/cpu/mpc8260/speed.c b/cpu/mpc8260/speed.c
new file mode 100644
index 0000000..2bf2c4a
--- /dev/null
+++ b/cpu/mpc8260/speed.c
@@ -0,0 +1,211 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8260.h>
+#include <asm/processor.h>
+
+/* ------------------------------------------------------------------------- */
+
+/* Bus-to-Core Multiplier */
+#define _1x 2
+#define _1_5x 3
+#define _2x 4
+#define _2_5x 5
+#define _3x 6
+#define _3_5x 7
+#define _4x 8
+#define _4_5x 9
+#define _5x 10
+#define _5_5x 11
+#define _6x 12
+#define _6_5x 13
+#define _7x 14
+#define _7_5x 15
+#define _8x 16
+#define _byp -1
+#define _off -2
+#define _unk -3
+
+typedef struct {
+ int b2c_mult;
+ int vco_div;
+ char *freq_60x;
+ char *freq_core;
+} corecnf_t;
+
+/*
+ * this table based on "Errata to MPC8260 PowerQUICC II User's Manual",
+ * Rev. 1, 8/2000, page 10.
+ */
+corecnf_t corecnf_tab[] = {
+ { _1_5x, 4, " 33-100", " 33-100" }, /* 0x00 */
+ { _1x, 4, " 50-150", " 50-150" }, /* 0x01 */
+ { _1x, 8, " 25-75 ", " 25-75 " }, /* 0x02 */
+ { _byp, -1, " ?-? ", " ?-? " }, /* 0x03 */
+ { _2x, 2, " 50-150", "100-300" }, /* 0x04 */
+ { _2x, 4, " 25-75 ", " 50-150" }, /* 0x05 */
+ { _2_5x, 2, " 40-120", "100-240" }, /* 0x06 */
+ { _4_5x, 2, " 22-65 ", "100-300" }, /* 0x07 */
+ { _3x, 2, " 33-100", "100-300" }, /* 0x08 */
+ { _5_5x, 2, " 18-55 ", "100-300" }, /* 0x09 */
+ { _4x, 2, " 25-75 ", "100-300" }, /* 0x0A */
+ { _5x, 2, " 20-60 ", "100-300" }, /* 0x0B */
+ { _1_5x, 8, " 16-50 ", " 16-50 " }, /* 0x0C */
+ { _6x, 2, " 16-50 ", "100-300" }, /* 0x0D */
+ { _3_5x, 2, " 30-85 ", "100-300" }, /* 0x0E */
+ { _off, -1, " ?-? ", " ?-? " }, /* 0x0F */
+ { _3x, 4, " 16-50 ", " 50-150" }, /* 0x10 */
+ { _2_5x, 4, " 20-60 ", " 50-120" }, /* 0x11 */
+ { _6_5x, 2, " 15-46 ", "100-300" }, /* 0x12 */
+ { _byp, -1, " ?-? ", " ?-? " }, /* 0x13 */
+ { _7x, 2, " 14-43 ", "100-300" }, /* 0x14 */
+ { _2x, 4, " 25-75 ", " 50-150" }, /* 0x15 */
+ { _7_5x, 2, " 13-40 ", "100-300" }, /* 0x16 */
+ { _4_5x, 2, " 22-65 ", "100-300" }, /* 0x17 */
+ { _unk, -1, " ?-? ", " ?-? " }, /* 0x18 */
+ { _5_5x, 2, " 18-55 ", "100-300" }, /* 0x19 */
+ { _4x, 2, " 25-75 ", "100-300" }, /* 0x1A */
+ { _5x, 2, " 20-60 ", "100-300" }, /* 0x1B */
+ { _8x, 2, " 12-38 ", "100-300" }, /* 0x1C */
+ { _6x, 2, " 16-50 ", "100-300" }, /* 0x1D */
+ { _3_5x, 2, " 30-85 ", "100-300" }, /* 0x1E */
+ { _off, -1, " ?-? ", " ?-? " }, /* 0x1F */
+};
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ *
+ */
+
+int get_clocks (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ ulong clkin;
+ ulong sccr, dfbrg;
+ ulong scmr, corecnf, busdf, cpmdf, plldf, pllmf;
+ corecnf_t *cp;
+
+#if !defined(CONFIG_8260_CLKIN)
+#error clock measuring not implemented yet - define CONFIG_8260_CLKIN
+#else
+ clkin = CONFIG_8260_CLKIN;
+#endif
+
+ sccr = immap->im_clkrst.car_sccr;
+ dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT;
+
+ scmr = immap->im_clkrst.car_scmr;
+ corecnf = (scmr & SCMR_CORECNF_MSK) >> SCMR_CORECNF_SHIFT;
+ busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT;
+ cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT;
+ plldf = (scmr & SCMR_PLLDF) ? 1 : 0;
+ pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT;
+
+ cp = &corecnf_tab[corecnf];
+
+ gd->vco_out = (clkin * 2 * (pllmf + 1)) / (plldf + 1);
+
+#if 0
+ if (gd->vco_out / (busdf + 1) != clkin) {
+ /* aaarrrggghhh!!! */
+ return (1);
+ }
+#endif
+
+ gd->cpm_clk = gd->vco_out / 2;
+ gd->bus_clk = clkin;
+ gd->scc_clk = gd->vco_out / 4;
+ gd->brg_clk = gd->vco_out / (1 << (2 * (dfbrg + 1)));
+
+ if (cp->b2c_mult > 0) {
+ gd->cpu_clk = (clkin * cp->b2c_mult) / 2;
+ } else {
+ gd->cpu_clk = clkin;
+ }
+
+ return (0);
+}
+
+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;
+ corecnf_t *cp;
+
+ sccr = immap->im_clkrst.car_sccr;
+ dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT;
+
+ scmr = immap->im_clkrst.car_scmr;
+ corecnf = (scmr & SCMR_CORECNF_MSK) >> SCMR_CORECNF_SHIFT;
+ busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT;
+ cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT;
+ plldf = (scmr & SCMR_PLLDF) ? 1 : 0;
+ pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT;
+
+ cp = &corecnf_tab[corecnf];
+
+ printf ("MPC8260 Clock Configuration\n - Bus-to-Core Mult ");
+
+ switch (cp->b2c_mult) {
+ case _byp:
+ printf ("BYPASS");
+ break;
+
+ case _off:
+ printf ("OFF");
+ break;
+
+ case _unk:
+ printf ("UNKNOWN");
+ break;
+
+ default:
+ printf ("%d%sx",
+ cp->b2c_mult / 2,
+ (cp->b2c_mult % 2) ? ".5" : "");
+ break;
+ }
+
+ printf (", VCO Div %d, 60x Bus Freq %s, Core Freq %s\n",
+ 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);
+
+ printf (" - vco_out %10ld, scc_clk %10ld, brg_clk %10ld\n",
+ gd->vco_out, gd->scc_clk, gd->brg_clk);
+
+ printf (" - cpu_clk %10ld, cpm_clk %10ld, bus_clk %10ld\n\n",
+ gd->cpu_clk, gd->cpm_clk, gd->bus_clk);
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */