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Diffstat (limited to 'arch/ppc/syslib/ibm440gp_common.c')
-rw-r--r--arch/ppc/syslib/ibm440gp_common.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/arch/ppc/syslib/ibm440gp_common.c b/arch/ppc/syslib/ibm440gp_common.c
deleted file mode 100644
index a3927ec9b5d..00000000000
--- a/arch/ppc/syslib/ibm440gp_common.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * PPC440GP system library
- *
- * Matt Porter <mporter@mvista.com>
- * Copyright 2002-2003 MontaVista Software Inc.
- *
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- * Copyright (c) 2003 Zultys Technologies
- *
- * 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.
- *
- */
-#include <linux/types.h>
-#include <asm/reg.h>
-#include <asm/ibm44x.h>
-#include <asm/mmu.h>
-
-/*
- * Calculate 440GP clocks
- */
-void __init ibm440gp_get_clocks(struct ibm44x_clocks* p,
- unsigned int sys_clk,
- unsigned int ser_clk)
-{
- u32 cpc0_sys0 = mfdcr(DCRN_CPC0_SYS0);
- u32 cpc0_cr0 = mfdcr(DCRN_CPC0_CR0);
- u32 opdv = ((cpc0_sys0 >> 10) & 0x3) + 1;
- u32 epdv = ((cpc0_sys0 >> 8) & 0x3) + 1;
-
- if (cpc0_sys0 & 0x2){
- /* Bypass system PLL */
- p->cpu = p->plb = sys_clk;
- }
- else {
- u32 fbdv, fwdva, fwdvb, m, vco;
-
- fbdv = (cpc0_sys0 >> 18) & 0x0f;
- if (!fbdv)
- fbdv = 16;
-
- fwdva = 8 - ((cpc0_sys0 >> 15) & 0x7);
- fwdvb = 8 - ((cpc0_sys0 >> 12) & 0x7);
-
- /* Feedback path */
- if (cpc0_sys0 & 0x00000080){
- /* PerClk */
- m = fwdvb * opdv * epdv;
- }
- else {
- /* CPU clock */
- m = fbdv * fwdva;
- }
- vco = sys_clk * m;
- p->cpu = vco / fwdva;
- p->plb = vco / fwdvb;
- }
-
- p->opb = p->plb / opdv;
- p->ebc = p->opb / epdv;
-
- if (cpc0_cr0 & 0x00400000){
- /* External UART clock */
- p->uart0 = p->uart1 = ser_clk;
- }
- else {
- /* Internal UART clock */
- u32 uart_div = ((cpc0_cr0 >> 16) & 0x1f) + 1;
- p->uart0 = p->uart1 = p->plb / uart_div;
- }
-}