ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 253 insertions, 0 deletions

diff --git a/arch/ppc/cpu/mpc8260/speed.c b/arch/ppc/cpu/mpc8260/speed.c
new file mode 100644
index 0000000..0e1c2b0
--- /dev/null
+++ b/arch/ppc/cpu/mpc8260/speed.c
@@ -0,0 +1,253 @@
+/*
+ * (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>
+
+#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
+extern unsigned long board_get_cpu_clk_f (void);
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+
+/* 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)
+{
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_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
+#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
+	clkin = board_get_cpu_clk_f ();
+#else
+	clkin = CONFIG_8260_CLKIN;
+#endif
+#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;
+	cp = &corecnf_tab[corecnf];
+
+	busdf = (scmr & SCMR_BUSDF_MSK) >> SCMR_BUSDF_SHIFT;
+	cpmdf = (scmr & SCMR_CPMDF_MSK) >> SCMR_CPMDF_SHIFT;
+
+	/* HiP7, HiP7 Rev01, HiP7 RevA */
+	if ((get_pvr () == PVR_8260_HIP7) ||
+	    (get_pvr () == PVR_8260_HIP7R1) ||
+	    (get_pvr () == PVR_8260_HIP7RA)) {
+		pllmf = (scmr & SCMR_PLLMF_MSKH7) >> SCMR_PLLMF_SHIFT;
+		gd->vco_out = clkin * (pllmf + 1);
+	} else {                        /* HiP3, HiP4 */
+		pllmf = (scmr & SCMR_PLLMF_MSK) >> SCMR_PLLMF_SHIFT;
+		plldf = (scmr & SCMR_PLLDF) ? 1 : 0;
+		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;
+	}
+
+#ifdef CONFIG_PCI
+	gd->pci_clk = clkin;
+
+	if (sccr & SCCR_PCI_MODE) {
+		uint pci_div;
+		uint pcidf = (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT;
+
+		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;
+		}
+
+		gd->pci_clk = (gd->cpm_clk * 2) / pci_div;
+	}
+#endif
+
+	return (0);
+}
+
+int prt_8260_clks (void)
+{
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+	ulong sccr, dfbrg;
+	ulong scmr, corecnf, busdf, cpmdf, plldf, pllmf, pcidf;
+	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;
+	pcidf = (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT;
+
+	cp = &corecnf_tab[corecnf];
+
+	puts (CPU_ID_STR " Clock Configuration\n - Bus-to-Core Mult ");
+
+	switch (cp->b2c_mult) {
+	case _byp:
+		puts ("BYPASS");
+		break;
+
+	case _off:
+		puts ("OFF");
+		break;
+
+	case _unk:
+		puts ("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, 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);
+
+	printf (" - cpu_clk %10ld, cpm_clk %10ld, bus_clk %10ld\n",
+			gd->cpu_clk, gd->cpm_clk, gd->bus_clk);
+#ifdef CONFIG_PCI
+	printf (" - pci_clk %10ld\n", gd->pci_clk);
+#endif
+	putc ('\n');
+
+	return (0);
+}