summaryrefslogtreecommitdiff
path: root/cpu/mpc8220/speed.c
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/mpc8220/speed.c')
-rw-r--r--cpu/mpc8220/speed.c123
1 files changed, 0 insertions, 123 deletions
diff --git a/cpu/mpc8220/speed.c b/cpu/mpc8220/speed.c
deleted file mode 100644
index 62ac845..0000000
--- a/cpu/mpc8220/speed.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * (C) Copyright 2004, Freescale, Inc
- * TsiChung Liew, Tsi-Chung.Liew@freescale.com.
- *
- * 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 <mpc8220.h>
-#include <asm/processor.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-typedef struct pllmultiplier {
- u8 hid1;
- int multi;
- int vco_div;
-} pllcfg_t;
-
-/* ------------------------------------------------------------------------- */
-
-/*
- *
- */
-
-int get_clocks (void)
-{
- pllcfg_t bus2core[] = {
- {0x02, 2, 8}, /* 1 */
- {0x01, 2, 4},
- {0x0C, 3, 8}, /* 1.5 */
- {0x00, 3, 4},
- {0x18, 3, 2},
- {0x05, 4, 4}, /* 2 */
- {0x04, 4, 2},
- {0x11, 5, 4}, /* 2.5 */
- {0x06, 5, 2},
- {0x10, 6, 4}, /* 3 */
- {0x08, 6, 2},
- {0x0E, 7, 2}, /* 3.5 */
- {0x0A, 8, 2}, /* 4 */
- {0x07, 9, 2}, /* 4.5 */
- {0x0B, 10, 2}, /* 5 */
- {0x09, 11, 2}, /* 5.5 */
- {0x0D, 12, 2}, /* 6 */
- {0x12, 13, 2}, /* 6.5 */
- {0x14, 14, 2}, /* 7 */
- {0x16, 15, 2}, /* 7.5 */
- {0x1C, 16, 2} /* 8 */
- };
- u32 hid1;
- int i, size, pci2bus;
-
-#if !defined(CONFIG_SYS_MPC8220_CLKIN)
-#error clock measuring not implemented yet - define CONFIG_SYS_MPC8220_CLKIN
-#endif
-
- gd->inp_clk = CONFIG_SYS_MPC8220_CLKIN;
-
- /* Read XLB to PCI(INP) clock multiplier */
- pci2bus = (*((volatile u32 *)PCI_REG_PCIGSCR) &
- PCI_REG_PCIGSCR_PCI2XLB_CLK_MASK)>>PCI_REG_PCIGSCR_PCI2XLB_CLK_BIT;
-
- /* XLB bus clock */
- gd->bus_clk = CONFIG_SYS_MPC8220_CLKIN * pci2bus;
-
- /* PCI clock is same as input clock */
- gd->pci_clk = CONFIG_SYS_MPC8220_CLKIN;
-
- /* FlexBus is temporary set as the same as input clock */
- /* will do dynamic in the future */
- gd->flb_clk = CONFIG_SYS_MPC8220_CLKIN;
-
- /* CPU Clock - Read HID1 */
- asm volatile ("mfspr %0, 1009":"=r" (hid1):);
-
- size = sizeof (bus2core) / sizeof (pllcfg_t);
-
- hid1 >>= 27;
-
- for (i = 0; i < size; i++)
- if (hid1 == bus2core[i].hid1) {
- gd->cpu_clk = (bus2core[i].multi * gd->bus_clk) >> 1;
- gd->vco_clk = CONFIG_SYS_MPC8220_SYSPLL_VCO_MULTIPLIER * (gd->pci_clk * bus2core[i].vco_div)/2;
- break;
- }
-
- /* hardcoded 81MHz for now */
- gd->pev_clk = 81000000;
-
- return (0);
-}
-
-int prt_mpc8220_clks (void)
-{
- char buf1[32], buf2[32], buf3[32], buf4[32];
-
- printf (" Bus %s MHz, CPU %s MHz, PCI %s MHz, VCO %s MHz\n",
- strmhz(buf1, gd->bus_clk),
- strmhz(buf2, gd->cpu_clk),
- strmhz(buf3, gd->pci_clk),
- strmhz(buf4, gd->vco_clk)
- );
- return (0);
-}
-
-/* ------------------------------------------------------------------------- */