ARM: ICST: kill duplicate icst code
The only difference between ICST307 and ICST525 are the two arrays for calculating the S parameter; the code is now identical. Merge the two files and kill the duplicated code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
parent
232eaf7f26
commit
c5a0adb510
arch/arm
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@ -240,7 +240,7 @@ config ARCH_INTEGRATOR
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select ARCH_HAS_CPUFREQ
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select HAVE_CLK
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select COMMON_CLKDEV
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select ICST525
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select ICST
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select GENERIC_TIME
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select GENERIC_CLOCKEVENTS
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help
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@ -251,7 +251,7 @@ config ARCH_REALVIEW
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select ARM_AMBA
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select HAVE_CLK
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select COMMON_CLKDEV
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select ICST307
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select ICST
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select GENERIC_TIME
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select GENERIC_CLOCKEVENTS
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select ARCH_WANT_OPTIONAL_GPIOLIB
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@ -264,7 +264,7 @@ config ARCH_VERSATILE
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select ARM_VIC
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select HAVE_CLK
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select COMMON_CLKDEV
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select ICST307
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select ICST
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select GENERIC_TIME
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select GENERIC_CLOCKEVENTS
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select ARCH_WANT_OPTIONAL_GPIOLIB
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@ -12,10 +12,7 @@ config ARM_VIC_NR
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The maximum number of VICs available in the system, for
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power management.
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config ICST525
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bool
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config ICST307
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config ICST
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bool
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config SA1111
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@ -4,8 +4,7 @@
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obj-$(CONFIG_ARM_GIC) += gic.o
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obj-$(CONFIG_ARM_VIC) += vic.o
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obj-$(CONFIG_ICST525) += icst525.o
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obj-$(CONFIG_ICST307) += icst307.o
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obj-$(CONFIG_ICST) += icst.o
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obj-$(CONFIG_SA1111) += sa1111.o
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obj-$(CONFIG_PCI_HOST_VIA82C505) += via82c505.o
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obj-$(CONFIG_DMABOUNCE) += dmabounce.o
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@ -17,31 +17,33 @@
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <asm/hardware/icst307.h>
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#include <asm/hardware/icst.h>
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/*
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* Divisors for each OD setting.
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*/
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const unsigned char icst307_s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 };
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const unsigned char icst525_s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 };
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EXPORT_SYMBOL(icst307_s2div);
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EXPORT_SYMBOL(icst525_s2div);
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unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco)
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unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco)
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{
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return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
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}
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EXPORT_SYMBOL(icst307_hz);
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EXPORT_SYMBOL(icst_hz);
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/*
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* Ascending divisor S values.
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*/
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const unsigned char icst307_idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 };
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const unsigned char icst525_idx2s[8] = { 1, 3, 4, 7, 5, 2, 6, 0 };
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EXPORT_SYMBOL(icst307_idx2s);
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EXPORT_SYMBOL(icst525_idx2s);
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struct icst_vco
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icst307_hz_to_vco(const struct icst_params *p, unsigned long freq)
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icst_hz_to_vco(const struct icst_params *p, unsigned long freq)
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{
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struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
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unsigned long f;
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@ -54,9 +56,6 @@ icst307_hz_to_vco(const struct icst_params *p, unsigned long freq)
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do {
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f = freq * p->s2div[p->idx2s[i]];
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/*
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* f must be between 6MHz and 200MHz (3.3 or 5V)
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*/
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if (f > p->vco_min && f <= p->vco_max)
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break;
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} while (i < 8);
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@ -98,4 +97,4 @@ icst307_hz_to_vco(const struct icst_params *p, unsigned long freq)
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return vco;
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}
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EXPORT_SYMBOL(icst307_hz_to_vco);
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EXPORT_SYMBOL(icst_hz_to_vco);
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@ -1,99 +0,0 @@
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/*
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* linux/arch/arm/common/icst525.c
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*
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* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Support functions for calculating clocks/divisors for the ICST525
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* clock generators. See http://www.icst.com/ for more information
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* on these devices.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <asm/hardware/icst525.h>
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/*
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* Divisors for each OD setting.
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*/
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const unsigned char icst525_s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 };
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EXPORT_SYMBOL(icst525_s2div);
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unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco)
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{
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return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
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}
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EXPORT_SYMBOL(icst525_hz);
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/*
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* Ascending divisor S values.
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*/
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const unsigned char icst525_idx2s[8] = { 1, 3, 4, 7, 5, 2, 6, 0 };
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EXPORT_SYMBOL(icst525_idx2s);
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struct icst_vco
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icst525_hz_to_vco(const struct icst_params *p, unsigned long freq)
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{
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struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
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unsigned long f;
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unsigned int i = 0, rd, best = (unsigned int)-1;
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/*
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* First, find the PLL output divisor such
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* that the PLL output is within spec.
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*/
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do {
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f = freq * p->s2div[p->idx2s[i]];
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/*
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* f must be between 10MHz and
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* 320MHz (5V) or 200MHz (3V)
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*/
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if (f > p->vco_min && f <= p->vco_max)
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break;
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} while (i < 8);
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if (i >= 8)
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return vco;
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vco.s = p->idx2s[i];
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/*
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* Now find the closest divisor combination
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* which gives a PLL output of 'f'.
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*/
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for (rd = p->rd_min; rd <= p->rd_max; rd++) {
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unsigned long fref_div, f_pll;
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unsigned int vd;
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int f_diff;
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fref_div = (2 * p->ref) / rd;
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vd = (f + fref_div / 2) / fref_div;
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if (vd < p->vd_min || vd > p->vd_max)
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continue;
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f_pll = fref_div * vd;
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f_diff = f_pll - f;
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if (f_diff < 0)
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f_diff = -f_diff;
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if ((unsigned)f_diff < best) {
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vco.v = vd - 8;
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vco.r = rd - 2;
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if (f_diff == 0)
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break;
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best = f_diff;
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}
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}
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return vco;
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}
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EXPORT_SYMBOL(icst525_hz_to_vco);
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@ -32,4 +32,28 @@ struct icst_vco {
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unsigned char s;
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};
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unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco);
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struct icst_vco icst_hz_to_vco(const struct icst_params *p, unsigned long freq);
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/*
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* ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
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* This frequency is pre-output divider.
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*/
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#define ICST307_VCO_MIN 6000000
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#define ICST307_VCO_MAX 200000000
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extern const unsigned char icst307_s2div[];
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extern const unsigned char icst307_idx2s[];
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/*
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* ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
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* This frequency is pre-output divider.
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*/
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#define ICST525_VCO_MIN 10000000
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#define ICST525_VCO_MAX_3V 200000000
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#define ICST525_VCO_MAX_5V 320000000
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extern const unsigned char icst525_s2div[];
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extern const unsigned char icst525_idx2s[];
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#endif
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@ -1,34 +0,0 @@
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/*
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* arch/arm/include/asm/hardware/icst307.h
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*
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* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Support functions for calculating clocks/divisors for the ICS307
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* clock generators. See http://www.icst.com/ for more information
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* on these devices.
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*
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* This file is similar to the icst525.h file
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*/
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#ifndef ASMARM_HARDWARE_ICST307_H
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#define ASMARM_HARDWARE_ICST307_H
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#include <asm/hardware/icst.h>
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unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco);
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struct icst_vco icst307_hz_to_vco(const struct icst_params *p, unsigned long freq);
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/*
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* ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
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* This frequency is pre-output divider.
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*/
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#define ICST307_VCO_MIN 6000000
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#define ICST307_VCO_MAX 200000000
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extern const unsigned char icst307_s2div[];
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extern const unsigned char icst307_idx2s[];
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#endif
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@ -1,33 +0,0 @@
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/*
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* arch/arm/include/asm/hardware/icst525.h
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*
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* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Support functions for calculating clocks/divisors for the ICST525
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* clock generators. See http://www.icst.com/ for more information
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* on these devices.
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*/
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#ifndef ASMARM_HARDWARE_ICST525_H
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#define ASMARM_HARDWARE_ICST525_H
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#include <asm/hardware/icst.h>
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unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco);
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struct icst_vco icst525_hz_to_vco(const struct icst_params *p, unsigned long freq);
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/*
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* ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
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* This frequency is pre-output divider.
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*/
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#define ICST525_VCO_MIN 10000000
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#define ICST525_VCO_MAX_3V 200000000
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#define ICST525_VCO_MAX_5V 320000000
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extern const unsigned char icst525_s2div[];
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extern const unsigned char icst525_idx2s[];
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#endif
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@ -14,7 +14,7 @@
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#include <linux/clk.h>
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#include <linux/mutex.h>
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#include <asm/hardware/icst525.h>
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#include <asm/hardware/icst.h>
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#include <asm/clkdev.h>
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#include <mach/clkdev.h>
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@ -38,8 +38,8 @@ EXPORT_SYMBOL(clk_get_rate);
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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struct icst_vco vco;
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vco = icst525_hz_to_vco(clk->params, rate);
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return icst525_hz(clk->params, vco);
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vco = icst_hz_to_vco(clk->params, rate);
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return icst_hz(clk->params, vco);
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}
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EXPORT_SYMBOL(clk_round_rate);
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@ -50,8 +50,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
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if (clk->setvco) {
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struct icst_vco vco;
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vco = icst525_hz_to_vco(clk->params, rate);
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clk->rate = icst525_hz(clk->params, vco);
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vco = icst_hz_to_vco(clk->params, rate);
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clk->rate = icst_hz(clk->params, vco);
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clk->setvco(clk, vco);
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ret = 0;
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}
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@ -22,7 +22,7 @@
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#include <mach/hardware.h>
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#include <mach/platform.h>
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#include <asm/mach-types.h>
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#include <asm/hardware/icst525.h>
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#include <asm/hardware/icst.h>
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static struct cpufreq_driver integrator_driver;
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@ -66,11 +66,11 @@ static int integrator_verify_policy(struct cpufreq_policy *policy)
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policy->cpuinfo.min_freq,
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policy->cpuinfo.max_freq);
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vco = icst525_hz_to_vco(&cclk_params, policy->max * 1000);
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policy->max = icst525_hz(&cclk_params, vco) / 1000;
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vco = icst_hz_to_vco(&cclk_params, policy->max * 1000);
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policy->max = icst_hz(&cclk_params, vco) / 1000;
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vco = icst525_hz_to_vco(&cclk_params, policy->min * 1000);
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policy->min = icst525_hz(&cclk_params, vco) / 1000;
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vco = icst_hz_to_vco(&cclk_params, policy->min * 1000);
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policy->min = icst_hz(&cclk_params, vco) / 1000;
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cpufreq_verify_within_limits(policy,
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policy->cpuinfo.min_freq,
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@ -112,17 +112,17 @@ static int integrator_set_target(struct cpufreq_policy *policy,
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}
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vco.v = cm_osc & 255;
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vco.r = 22;
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freqs.old = icst525_hz(&cclk_params, vco) / 1000;
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freqs.old = icst_hz(&cclk_params, vco) / 1000;
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/* icst525_hz_to_vco rounds down -- so we need the next
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/* icst_hz_to_vco rounds down -- so we need the next
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* larger freq in case of CPUFREQ_RELATION_L.
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*/
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if (relation == CPUFREQ_RELATION_L)
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target_freq += 999;
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if (target_freq > policy->max)
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target_freq = policy->max;
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vco = icst525_hz_to_vco(&cclk_params, target_freq * 1000);
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freqs.new = icst525_hz(&cclk_params, vco) / 1000;
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vco = icst_hz_to_vco(&cclk_params, target_freq * 1000);
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freqs.new = icst_hz(&cclk_params, vco) / 1000;
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freqs.cpu = policy->cpu;
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@ -180,7 +180,7 @@ static unsigned int integrator_get(unsigned int cpu)
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vco.v = cm_osc & 255;
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vco.r = 22;
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current_freq = icst525_hz(&cclk_params, vco) / 1000; /* current freq */
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current_freq = icst_hz(&cclk_params, vco) / 1000; /* current freq */
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set_cpus_allowed(current, cpus_allowed);
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@ -24,7 +24,7 @@
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#include <asm/clkdev.h>
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#include <mach/clkdev.h>
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#include <asm/hardware/icst525.h>
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#include <asm/hardware/icst.h>
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#include <mach/lm.h>
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#include <mach/impd1.h>
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#include <asm/sizes.h>
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@ -29,7 +29,7 @@
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#include <asm/irq.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/hardware/icst525.h>
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#include <asm/hardware/icst.h>
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#include <mach/cm.h>
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#include <mach/lm.h>
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@ -18,7 +18,7 @@
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#include <linux/clk.h>
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#include <linux/mutex.h>
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#include <asm/hardware/icst307.h>
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#include <asm/hardware/icst.h>
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#include "clock.h"
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@ -42,8 +42,8 @@ EXPORT_SYMBOL(clk_get_rate);
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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struct icst_vco vco;
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vco = icst307_hz_to_vco(clk->params, rate);
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return icst307_hz(clk->params, vco);
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vco = icst_hz_to_vco(clk->params, rate);
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return icst_hz(clk->params, vco);
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}
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EXPORT_SYMBOL(clk_round_rate);
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@ -54,8 +54,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
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if (clk->setvco) {
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struct icst_vco vco;
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vco = icst307_hz_to_vco(clk->params, rate);
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clk->rate = icst307_hz(clk->params, vco);
|
||||
vco = icst_hz_to_vco(clk->params, rate);
|
||||
clk->rate = icst_hz(clk->params, vco);
|
||||
clk->setvco(clk, vco);
|
||||
ret = 0;
|
||||
}
|
||||
|
|
|
@ -39,7 +39,7 @@
|
|||
#include <asm/leds.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/hardware/arm_timer.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
#include <asm/hardware/icst.h>
|
||||
|
||||
#include <asm/mach/arch.h>
|
||||
#include <asm/mach/flash.h>
|
||||
|
|
|
@ -32,7 +32,6 @@
|
|||
#include <asm/leds.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/hardware/gic.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
#include <asm/hardware/cache-l2x0.h>
|
||||
#include <asm/localtimer.h>
|
||||
|
||||
|
|
|
@ -32,7 +32,6 @@
|
|||
#include <asm/leds.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/hardware/gic.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
#include <asm/hardware/cache-l2x0.h>
|
||||
|
||||
#include <asm/mach/arch.h>
|
||||
|
|
|
@ -32,7 +32,6 @@
|
|||
#include <asm/leds.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/hardware/gic.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
#include <asm/hardware/cache-l2x0.h>
|
||||
#include <asm/localtimer.h>
|
||||
|
||||
|
|
|
@ -31,7 +31,6 @@
|
|||
#include <asm/leds.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/hardware/gic.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
|
||||
#include <asm/mach/arch.h>
|
||||
#include <asm/mach/map.h>
|
||||
|
|
|
@ -19,7 +19,7 @@
|
|||
#include <linux/mutex.h>
|
||||
|
||||
#include <asm/clkdev.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
#include <asm/hardware/icst.h>
|
||||
|
||||
#include "clock.h"
|
||||
|
||||
|
@ -43,8 +43,8 @@ EXPORT_SYMBOL(clk_get_rate);
|
|||
long clk_round_rate(struct clk *clk, unsigned long rate)
|
||||
{
|
||||
struct icst_vco vco;
|
||||
vco = icst307_hz_to_vco(clk->params, rate);
|
||||
return icst307_hz(clk->params, vco);
|
||||
vco = icst_hz_to_vco(clk->params, rate);
|
||||
return icst_hz(clk->params, vco);
|
||||
}
|
||||
EXPORT_SYMBOL(clk_round_rate);
|
||||
|
||||
|
@ -55,8 +55,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
|
|||
if (clk->setvco) {
|
||||
struct icst_vco vco;
|
||||
|
||||
vco = icst307_hz_to_vco(clk->params, rate);
|
||||
clk->rate = icst307_hz(clk->params, vco);
|
||||
vco = icst_hz_to_vco(clk->params, rate);
|
||||
clk->rate = icst_hz(clk->params, vco);
|
||||
clk->setvco(clk, vco);
|
||||
ret = 0;
|
||||
}
|
||||
|
|
|
@ -38,7 +38,7 @@
|
|||
#include <asm/irq.h>
|
||||
#include <asm/leds.h>
|
||||
#include <asm/hardware/arm_timer.h>
|
||||
#include <asm/hardware/icst307.h>
|
||||
#include <asm/hardware/icst.h>
|
||||
#include <asm/hardware/vic.h>
|
||||
#include <asm/mach-types.h>
|
||||
|
||||
|
|
Loading…
Reference in New Issue
Block a user