diff options
Diffstat (limited to 'arch/arm/common')
-rw-r--r-- | arch/arm/common/Kconfig | 5 | ||||
-rw-r--r-- | arch/arm/common/Makefile | 3 | ||||
-rw-r--r-- | arch/arm/common/icst.c (renamed from arch/arm/common/icst307.c) | 19 | ||||
-rw-r--r-- | arch/arm/common/icst525.c | 99 |
4 files changed, 11 insertions, 115 deletions
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig index 4efbb9df0444..323d2d289523 100644 --- a/arch/arm/common/Kconfig +++ b/arch/arm/common/Kconfig @@ -12,10 +12,7 @@ config ARM_VIC_NR The maximum number of VICs available in the system, for power management. -config ICST525 - bool - -config ICST307 +config ICST bool config SA1111 diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile index 76be7ff2a7ca..5e8ad0d6c917 100644 --- a/arch/arm/common/Makefile +++ b/arch/arm/common/Makefile @@ -4,8 +4,7 @@ obj-$(CONFIG_ARM_GIC) += gic.o obj-$(CONFIG_ARM_VIC) += vic.o -obj-$(CONFIG_ICST525) += icst525.o -obj-$(CONFIG_ICST307) += icst307.o +obj-$(CONFIG_ICST) += icst.o obj-$(CONFIG_SA1111) += sa1111.o obj-$(CONFIG_PCI_HOST_VIA82C505) += via82c505.o obj-$(CONFIG_DMABOUNCE) += dmabounce.o diff --git a/arch/arm/common/icst307.c b/arch/arm/common/icst.c index 8332c0726e73..9a7f09cff300 100644 --- a/arch/arm/common/icst307.c +++ b/arch/arm/common/icst.c @@ -17,31 +17,33 @@ #include <linux/module.h> #include <linux/kernel.h> -#include <asm/hardware/icst307.h> +#include <asm/hardware/icst.h> /* * Divisors for each OD setting. */ const unsigned char icst307_s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 }; - +const unsigned char icst525_s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 }; EXPORT_SYMBOL(icst307_s2div); +EXPORT_SYMBOL(icst525_s2div); -unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco) +unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco) { return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]); } -EXPORT_SYMBOL(icst307_hz); +EXPORT_SYMBOL(icst_hz); /* * Ascending divisor S values. */ const unsigned char icst307_idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 }; - +const unsigned char icst525_idx2s[8] = { 1, 3, 4, 7, 5, 2, 6, 0 }; EXPORT_SYMBOL(icst307_idx2s); +EXPORT_SYMBOL(icst525_idx2s); struct icst_vco -icst307_hz_to_vco(const struct icst_params *p, unsigned long freq) +icst_hz_to_vco(const struct icst_params *p, unsigned long freq) { struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max }; unsigned long f; @@ -54,9 +56,6 @@ icst307_hz_to_vco(const struct icst_params *p, unsigned long freq) do { f = freq * p->s2div[p->idx2s[i]]; - /* - * f must be between 6MHz and 200MHz (3.3 or 5V) - */ if (f > p->vco_min && f <= p->vco_max) break; } while (i < 8); @@ -98,4 +97,4 @@ icst307_hz_to_vco(const struct icst_params *p, unsigned long freq) return vco; } -EXPORT_SYMBOL(icst307_hz_to_vco); +EXPORT_SYMBOL(icst_hz_to_vco); diff --git a/arch/arm/common/icst525.c b/arch/arm/common/icst525.c deleted file mode 100644 index 4180255eb078..000000000000 --- a/arch/arm/common/icst525.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * linux/arch/arm/common/icst525.c - * - * Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Support functions for calculating clocks/divisors for the ICST525 - * clock generators. See http://www.icst.com/ for more information - * on these devices. - */ -#include <linux/module.h> -#include <linux/kernel.h> - -#include <asm/hardware/icst525.h> - -/* - * Divisors for each OD setting. - */ -const unsigned char icst525_s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 }; - -EXPORT_SYMBOL(icst525_s2div); - -unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco) -{ - return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]); -} - -EXPORT_SYMBOL(icst525_hz); - -/* - * Ascending divisor S values. - */ -const unsigned char icst525_idx2s[8] = { 1, 3, 4, 7, 5, 2, 6, 0 }; - -EXPORT_SYMBOL(icst525_idx2s); - -struct icst_vco -icst525_hz_to_vco(const struct icst_params *p, unsigned long freq) -{ - struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max }; - unsigned long f; - unsigned int i = 0, rd, best = (unsigned int)-1; - - /* - * First, find the PLL output divisor such - * that the PLL output is within spec. - */ - do { - f = freq * p->s2div[p->idx2s[i]]; - - /* - * f must be between 10MHz and - * 320MHz (5V) or 200MHz (3V) - */ - if (f > p->vco_min && f <= p->vco_max) - break; - } while (i < 8); - - if (i >= 8) - return vco; - - vco.s = p->idx2s[i]; - - /* - * Now find the closest divisor combination - * which gives a PLL output of 'f'. - */ - for (rd = p->rd_min; rd <= p->rd_max; rd++) { - unsigned long fref_div, f_pll; - unsigned int vd; - int f_diff; - - fref_div = (2 * p->ref) / rd; - - vd = (f + fref_div / 2) / fref_div; - if (vd < p->vd_min || vd > p->vd_max) - continue; - - f_pll = fref_div * vd; - f_diff = f_pll - f; - if (f_diff < 0) - f_diff = -f_diff; - - if ((unsigned)f_diff < best) { - vco.v = vd - 8; - vco.r = rd - 2; - if (f_diff == 0) - break; - best = f_diff; - } - } - - return vco; -} - -EXPORT_SYMBOL(icst525_hz_to_vco); |