提交 64fceb1d 编写于 作者: R Russell King

ARM: ICST: use Hz instead of kHz

This makes the ICST support fit more nicely with the clk API,
eliminating the need to *1000 and /1000 in places.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 4de2edbd
...@@ -24,12 +24,12 @@ ...@@ -24,12 +24,12 @@
*/ */
static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 }; static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 3, 6 };
unsigned long icst307_khz(const struct icst_params *p, struct icst_vco vco) unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco)
{ {
return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * s2div[vco.s]); return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * s2div[vco.s]);
} }
EXPORT_SYMBOL(icst307_khz); EXPORT_SYMBOL(icst307_hz);
/* /*
* Ascending divisor S values. * Ascending divisor S values.
...@@ -37,7 +37,7 @@ EXPORT_SYMBOL(icst307_khz); ...@@ -37,7 +37,7 @@ EXPORT_SYMBOL(icst307_khz);
static unsigned char idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 }; static unsigned char idx2s[8] = { 1, 6, 3, 4, 7, 5, 2, 0 };
struct icst_vco struct icst_vco
icst307_khz_to_vco(const struct icst_params *p, unsigned long freq) icst307_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 }; struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
unsigned long f; unsigned long f;
...@@ -94,4 +94,4 @@ icst307_khz_to_vco(const struct icst_params *p, unsigned long freq) ...@@ -94,4 +94,4 @@ icst307_khz_to_vco(const struct icst_params *p, unsigned long freq)
return vco; return vco;
} }
EXPORT_SYMBOL(icst307_khz_to_vco); EXPORT_SYMBOL(icst307_hz_to_vco);
...@@ -21,12 +21,12 @@ ...@@ -21,12 +21,12 @@
*/ */
static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 }; static unsigned char s2div[8] = { 10, 2, 8, 4, 5, 7, 9, 6 };
unsigned long icst525_khz(const struct icst_params *p, struct icst_vco vco) unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco)
{ {
return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * s2div[vco.s]); return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * s2div[vco.s]);
} }
EXPORT_SYMBOL(icst525_khz); EXPORT_SYMBOL(icst525_hz);
/* /*
* Ascending divisor S values. * Ascending divisor S values.
...@@ -34,7 +34,7 @@ EXPORT_SYMBOL(icst525_khz); ...@@ -34,7 +34,7 @@ EXPORT_SYMBOL(icst525_khz);
static unsigned char idx2s[] = { 1, 3, 4, 7, 5, 2, 6, 0 }; static unsigned char idx2s[] = { 1, 3, 4, 7, 5, 2, 6, 0 };
struct icst_vco struct icst_vco
icst525_khz_to_vco(const struct icst_params *p, unsigned long freq) 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 }; struct icst_vco vco = { .s = 1, .v = p->vd_max, .r = p->rd_max };
unsigned long f; unsigned long f;
...@@ -92,4 +92,4 @@ icst525_khz_to_vco(const struct icst_params *p, unsigned long freq) ...@@ -92,4 +92,4 @@ icst525_khz_to_vco(const struct icst_params *p, unsigned long freq)
return vco; return vco;
} }
EXPORT_SYMBOL(icst525_khz_to_vco); EXPORT_SYMBOL(icst525_hz_to_vco);
...@@ -18,14 +18,14 @@ ...@@ -18,14 +18,14 @@
#include <asm/hardware/icst.h> #include <asm/hardware/icst.h>
unsigned long icst307_khz(const struct icst_params *p, struct icst_vco vco); unsigned long icst307_hz(const struct icst_params *p, struct icst_vco vco);
struct icst_vco icst307_khz_to_vco(const struct icst_params *p, unsigned long freq); struct icst_vco icst307_hz_to_vco(const struct icst_params *p, unsigned long freq);
/* /*
* ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V). * ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
* This frequency is pre-output divider. * This frequency is pre-output divider.
*/ */
#define ICST307_VCO_MIN 6000 #define ICST307_VCO_MIN 6000000
#define ICST307_VCO_MAX 200000 #define ICST307_VCO_MAX 200000000
#endif #endif
...@@ -16,15 +16,15 @@ ...@@ -16,15 +16,15 @@
#include <asm/hardware/icst.h> #include <asm/hardware/icst.h>
unsigned long icst525_khz(const struct icst_params *p, struct icst_vco vco); unsigned long icst525_hz(const struct icst_params *p, struct icst_vco vco);
struct icst_vco icst525_khz_to_vco(const struct icst_params *p, unsigned long freq); struct icst_vco icst525_hz_to_vco(const struct icst_params *p, unsigned long freq);
/* /*
* ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V). * ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
* This frequency is pre-output divider. * This frequency is pre-output divider.
*/ */
#define ICST525_VCO_MIN 10000 #define ICST525_VCO_MIN 10000000
#define ICST525_VCO_MAX_3V 200000 #define ICST525_VCO_MAX_3V 200000000
#define ICST525_VCO_MAX_5V 320000 #define ICST525_VCO_MAX_5V 320000000
#endif #endif
...@@ -38,8 +38,8 @@ EXPORT_SYMBOL(clk_get_rate); ...@@ -38,8 +38,8 @@ EXPORT_SYMBOL(clk_get_rate);
long clk_round_rate(struct clk *clk, unsigned long rate) long clk_round_rate(struct clk *clk, unsigned long rate)
{ {
struct icst_vco vco; struct icst_vco vco;
vco = icst525_khz_to_vco(clk->params, rate / 1000); vco = icst525_hz_to_vco(clk->params, rate);
return icst525_khz(clk->params, vco) * 1000; return icst525_hz(clk->params, vco);
} }
EXPORT_SYMBOL(clk_round_rate); EXPORT_SYMBOL(clk_round_rate);
...@@ -50,8 +50,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate) ...@@ -50,8 +50,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
if (clk->setvco) { if (clk->setvco) {
struct icst_vco vco; struct icst_vco vco;
vco = icst525_khz_to_vco(clk->params, rate / 1000); vco = icst525_hz_to_vco(clk->params, rate);
clk->rate = icst525_khz(clk->params, vco) * 1000; clk->rate = icst525_hz(clk->params, vco);
clk->setvco(clk, vco); clk->setvco(clk, vco);
ret = 0; ret = 0;
} }
......
...@@ -32,7 +32,7 @@ static struct cpufreq_driver integrator_driver; ...@@ -32,7 +32,7 @@ static struct cpufreq_driver integrator_driver;
#define CM_LOCK IO_ADDRESS(INTEGRATOR_HDR_LOCK) #define CM_LOCK IO_ADDRESS(INTEGRATOR_HDR_LOCK)
static const struct icst_params lclk_params = { static const struct icst_params lclk_params = {
.ref = 24000, .ref = 24000000,
.vco_max = ICST525_VCO_MAX_5V, .vco_max = ICST525_VCO_MAX_5V,
.vd_min = 8, .vd_min = 8,
.vd_max = 132, .vd_max = 132,
...@@ -41,7 +41,7 @@ static const struct icst_params lclk_params = { ...@@ -41,7 +41,7 @@ static const struct icst_params lclk_params = {
}; };
static const struct icst_params cclk_params = { static const struct icst_params cclk_params = {
.ref = 24000, .ref = 24000000,
.vco_max = ICST525_VCO_MAX_5V, .vco_max = ICST525_VCO_MAX_5V,
.vd_min = 12, .vd_min = 12,
.vd_max = 160, .vd_max = 160,
...@@ -60,11 +60,11 @@ static int integrator_verify_policy(struct cpufreq_policy *policy) ...@@ -60,11 +60,11 @@ static int integrator_verify_policy(struct cpufreq_policy *policy)
policy->cpuinfo.min_freq, policy->cpuinfo.min_freq,
policy->cpuinfo.max_freq); policy->cpuinfo.max_freq);
vco = icst525_khz_to_vco(&cclk_params, policy->max); vco = icst525_hz_to_vco(&cclk_params, policy->max * 1000);
policy->max = icst525_khz(&cclk_params, vco); policy->max = icst525_hz(&cclk_params, vco) / 1000;
vco = icst525_khz_to_vco(&cclk_params, policy->min); vco = icst525_hz_to_vco(&cclk_params, policy->min * 1000);
policy->min = icst525_khz(&cclk_params, vco); policy->min = icst525_hz(&cclk_params, vco) / 1000;
cpufreq_verify_within_limits(policy, cpufreq_verify_within_limits(policy,
policy->cpuinfo.min_freq, policy->cpuinfo.min_freq,
...@@ -106,17 +106,17 @@ static int integrator_set_target(struct cpufreq_policy *policy, ...@@ -106,17 +106,17 @@ static int integrator_set_target(struct cpufreq_policy *policy,
} }
vco.v = cm_osc & 255; vco.v = cm_osc & 255;
vco.r = 22; vco.r = 22;
freqs.old = icst525_khz(&cclk_params, vco); freqs.old = icst525_hz(&cclk_params, vco) / 1000;
/* icst525_khz_to_vco rounds down -- so we need the next /* icst525_hz_to_vco rounds down -- so we need the next
* larger freq in case of CPUFREQ_RELATION_L. * larger freq in case of CPUFREQ_RELATION_L.
*/ */
if (relation == CPUFREQ_RELATION_L) if (relation == CPUFREQ_RELATION_L)
target_freq += 999; target_freq += 999;
if (target_freq > policy->max) if (target_freq > policy->max)
target_freq = policy->max; target_freq = policy->max;
vco = icst525_khz_to_vco(&cclk_params, target_freq); vco = icst525_hz_to_vco(&cclk_params, target_freq * 1000);
freqs.new = icst525_khz(&cclk_params, vco); freqs.new = icst525_hz(&cclk_params, vco) / 1000;
freqs.cpu = policy->cpu; freqs.cpu = policy->cpu;
...@@ -174,7 +174,7 @@ static unsigned int integrator_get(unsigned int cpu) ...@@ -174,7 +174,7 @@ static unsigned int integrator_get(unsigned int cpu)
vco.v = cm_osc & 255; vco.v = cm_osc & 255;
vco.r = 22; vco.r = 22;
current_freq = icst525_khz(&cclk_params, vco); /* current freq */ current_freq = icst525_hz(&cclk_params, vco) / 1000; /* current freq */
set_cpus_allowed(current, cpus_allowed); set_cpus_allowed(current, cpus_allowed);
......
...@@ -41,7 +41,7 @@ struct impd1_module { ...@@ -41,7 +41,7 @@ struct impd1_module {
}; };
static const struct icst_params impd1_vco_params = { static const struct icst_params impd1_vco_params = {
.ref = 24000, /* 24 MHz */ .ref = 24000000, /* 24 MHz */
.vco_max = ICST525_VCO_MAX_3V, .vco_max = ICST525_VCO_MAX_3V,
.vd_min = 12, .vd_min = 12,
.vd_max = 519, .vd_max = 519,
...@@ -73,8 +73,8 @@ static void impd1_setvco(struct clk *clk, struct icst_vco vco) ...@@ -73,8 +73,8 @@ static void impd1_setvco(struct clk *clk, struct icst_vco vco)
vco.r = (val >> 9) & 0x7f; vco.r = (val >> 9) & 0x7f;
vco.s = (val >> 16) & 7; vco.s = (val >> 16) & 7;
pr_debug("IM-PD1: VCO%d clock is %ld kHz\n", pr_debug("IM-PD1: VCO%d clock is %ld Hz\n",
vconr, icst525_khz(&impd1_vco_params, vco)); vconr, icst525_hz(&impd1_vco_params, vco));
#endif #endif
} }
......
...@@ -269,7 +269,7 @@ static void __init intcp_init_irq(void) ...@@ -269,7 +269,7 @@ static void __init intcp_init_irq(void)
#define CM_AUXOSC IO_ADDRESS(INTEGRATOR_HDR_BASE + 0x1c) #define CM_AUXOSC IO_ADDRESS(INTEGRATOR_HDR_BASE + 0x1c)
static const struct icst_params cp_auxvco_params = { static const struct icst_params cp_auxvco_params = {
.ref = 24000, .ref = 24000000,
.vco_max = ICST525_VCO_MAX_5V, .vco_max = ICST525_VCO_MAX_5V,
.vd_min = 8, .vd_min = 8,
.vd_max = 263, .vd_max = 263,
......
...@@ -42,8 +42,8 @@ EXPORT_SYMBOL(clk_get_rate); ...@@ -42,8 +42,8 @@ EXPORT_SYMBOL(clk_get_rate);
long clk_round_rate(struct clk *clk, unsigned long rate) long clk_round_rate(struct clk *clk, unsigned long rate)
{ {
struct icst_vco vco; struct icst_vco vco;
vco = icst307_khz_to_vco(clk->params, rate / 1000); vco = icst307_hz_to_vco(clk->params, rate);
return icst307_khz(clk->params, vco) * 1000; return icst307_hz(clk->params, vco);
} }
EXPORT_SYMBOL(clk_round_rate); EXPORT_SYMBOL(clk_round_rate);
...@@ -54,8 +54,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate) ...@@ -54,8 +54,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
if (clk->setvco) { if (clk->setvco) {
struct icst_vco vco; struct icst_vco vco;
vco = icst307_khz_to_vco(clk->params, rate / 1000); vco = icst307_hz_to_vco(clk->params, rate);
clk->rate = icst307_khz(clk->params, vco) * 1000; clk->rate = icst307_hz(clk->params, vco);
clk->setvco(clk, vco); clk->setvco(clk, vco);
ret = 0; ret = 0;
} }
......
...@@ -274,7 +274,7 @@ struct mmci_platform_data realview_mmc1_plat_data = { ...@@ -274,7 +274,7 @@ struct mmci_platform_data realview_mmc1_plat_data = {
* Clock handling * Clock handling
*/ */
static const struct icst_params realview_oscvco_params = { static const struct icst_params realview_oscvco_params = {
.ref = 24000, .ref = 24000000,
.vco_max = ICST307_VCO_MAX, .vco_max = ICST307_VCO_MAX,
.vd_min = 4 + 8, .vd_min = 4 + 8,
.vd_max = 511 + 8, .vd_max = 511 + 8,
......
...@@ -43,8 +43,8 @@ EXPORT_SYMBOL(clk_get_rate); ...@@ -43,8 +43,8 @@ EXPORT_SYMBOL(clk_get_rate);
long clk_round_rate(struct clk *clk, unsigned long rate) long clk_round_rate(struct clk *clk, unsigned long rate)
{ {
struct icst_vco vco; struct icst_vco vco;
vco = icst307_khz_to_vco(clk->params, rate / 1000); vco = icst307_hz_to_vco(clk->params, rate);
return icst307_khz(clk->params, vco) * 1000; return icst307_hz(clk->params, vco);
} }
EXPORT_SYMBOL(clk_round_rate); EXPORT_SYMBOL(clk_round_rate);
...@@ -55,8 +55,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate) ...@@ -55,8 +55,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
if (clk->setvco) { if (clk->setvco) {
struct icst_vco vco; struct icst_vco vco;
vco = icst307_khz_to_vco(clk->params, rate / 1000); vco = icst307_hz_to_vco(clk->params, rate);
clk->rate = icst307_khz(clk->params, vco) * 1000; clk->rate = icst307_hz(clk->params, vco);
clk->setvco(clk, vco); clk->setvco(clk, vco);
ret = 0; ret = 0;
} }
......
...@@ -380,7 +380,7 @@ static struct mmci_platform_data mmc0_plat_data = { ...@@ -380,7 +380,7 @@ static struct mmci_platform_data mmc0_plat_data = {
* Clock handling * Clock handling
*/ */
static const struct icst_params versatile_oscvco_params = { static const struct icst_params versatile_oscvco_params = {
.ref = 24000, .ref = 24000000,
.vco_max = ICST307_VCO_MAX, .vco_max = ICST307_VCO_MAX,
.vd_min = 4 + 8, .vd_min = 4 + 8,
.vd_max = 511 + 8, .vd_max = 511 + 8,
......
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