diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8220/speed.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8220/speed.c | 125 | 
1 files changed, 0 insertions, 125 deletions
| diff --git a/arch/powerpc/cpu/mpc8220/speed.c b/arch/powerpc/cpu/mpc8220/speed.c deleted file mode 100644 index bb72e5ce1..000000000 --- a/arch/powerpc/cpu/mpc8220/speed.c +++ /dev/null @@ -1,125 +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->arch.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->arch.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->arch.vco_clk = -				CONFIG_SYS_MPC8220_SYSPLL_VCO_MULTIPLIER * -				(gd->pci_clk * bus2core[i].vco_div) / 2; -			break; -		} - -	/* hardcoded 81MHz for now */ -	gd->arch.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->arch.vco_clk) -	); -	return (0); -} - -/* ------------------------------------------------------------------------- */ |