#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/clk.h>
-#include <asm/bitops.h>
-
-#include <asm/io.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
#include <asm/arch/clock.h>
+#include <asm/arch/clockdomain.h>
#include <asm/arch/sram.h>
#include <asm/arch/cpu.h>
#include <asm/div64.h>
* 24xx uses 0 to indicate not ready, and 1 to indicate ready.
* 34xx reverses this, just to keep us on our toes
*/
- if (cpu_mask & (RATE_IN_242X | RATE_IN_243X)) {
+ if (cpu_mask & (RATE_IN_242X | RATE_IN_243X))
ena = mask;
- } else if (cpu_mask & RATE_IN_343X) {
+ else if (cpu_mask & RATE_IN_343X)
ena = 0;
- }
/* Wait for lock */
while (((__raw_readl(reg) & mask) != ena) &&
* Note: We don't need special code here for INVERT_ENABLE
* for the time being since INVERT_ENABLE only applies to clocks enabled by
* CM_CLKEN_PLL
+ *
+ * REVISIT: This code is ugly and does not belong here.
*/
static void omap2_clk_wait_ready(struct clk *clk)
{
- void __iomem *reg, *other_reg, *st_reg;
- u32 bit;
-
- /*
- * REVISIT: This code is pretty ugly. It would be nice to generalize
- * it and pull it into struct clk itself somehow.
- */
- reg = clk->enable_reg;
- if ((((u32)reg & 0xff) >= CM_FCLKEN1) &&
- (((u32)reg & 0xff) <= OMAP24XX_CM_FCLKEN2))
- other_reg = (void __iomem *)(((u32)reg & ~0xf0) | 0x10); /* CM_ICLKEN* */
- else if ((((u32)reg & 0xff) >= CM_ICLKEN1) &&
- (((u32)reg & 0xff) <= OMAP24XX_CM_ICLKEN4))
- other_reg = (void __iomem *)(((u32)reg & ~0xf0) | 0x00); /* CM_FCLKEN* */
+ u32 bit, reg, other_reg, st_reg;
+
+ reg = (__force u32)clk->enable_reg;
+ if (((reg & 0xff) >= CM_FCLKEN1) &&
+ ((reg & 0xff) <= OMAP24XX_CM_FCLKEN2))
+ other_reg = ((reg & ~0xf0) | 0x10); /* CM_ICLKEN* */
+ else if (((reg & 0xff) >= CM_ICLKEN1) &&
+ ((reg & 0xff) <= OMAP24XX_CM_ICLKEN4))
+ other_reg = ((reg & ~0xf0) | 0x00); /* CM_FCLKEN* */
else
return;
/* REVISIT: What are the appropriate exclusions for 34XX? */
/* No check for DSS or cam clocks */
- if (cpu_is_omap24xx() && ((u32)reg & 0x0f) == 0) { /* CM_{F,I}CLKEN1 */
+ if (cpu_is_omap24xx() && (reg & 0x0f) == 0) { /* CM_{F,I}CLKEN1 */
if (clk->enable_bit == OMAP24XX_EN_DSS2_SHIFT ||
clk->enable_bit == OMAP24XX_EN_DSS1_SHIFT ||
clk->enable_bit == OMAP24XX_EN_CAM_SHIFT)
/* REVISIT: What are the appropriate exclusions for 34XX? */
/* OMAP3: ignore DSS-mod clocks */
if (cpu_is_omap34xx() &&
- (((u32)reg & ~0xff) == (u32)OMAP_CM_REGADDR(OMAP3430_DSS_MOD, 0) ||
- ((((u32)reg & ~0xff) == (u32)OMAP_CM_REGADDR(CORE_MOD, 0)) &&
- clk->enable_bit == OMAP3430_EN_SSI_SHIFT)))
+ ((reg & ~0xff) == (__force u32)OMAP_CM_REGADDR(OMAP3430_DSS_MOD, 0) ||
+ (((reg & ~0xff) == (__force u32)OMAP_CM_REGADDR(CORE_MOD, 0)) &&
+ clk->enable_bit == OMAP3430_EN_SSI_SHIFT)))
return;
/* Check if both functional and interface clocks
* are running. */
bit = 1 << clk->enable_bit;
- if (!(__raw_readl(other_reg) & bit))
+ if (!(__raw_readl((__force void __iomem *)other_reg) & bit))
return;
- st_reg = (void __iomem *)(((u32)other_reg & ~0xf0) | 0x20); /* CM_IDLEST* */
+ st_reg = ((other_reg & ~0xf0) | 0x20); /* CM_IDLEST* */
- omap2_wait_clock_ready(st_reg, bit, clk->name);
+ omap2_wait_clock_ready((__force void __iomem *)st_reg, bit, clk->name);
}
/* Enables clock without considering parent dependencies or use count
* REVISIT: Maybe change this to use clk->enable like on omap1?
*/
-int _omap2_clk_enable(struct clk *clk)
+static int _omap2_clk_enable(struct clk *clk)
{
u32 regval32;
if (clk->enable)
return clk->enable(clk);
- if (unlikely(clk->enable_reg == 0)) {
+ if (!clk->enable_reg) {
printk(KERN_ERR "clock.c: Enable for %s without enable code\n",
clk->name);
return 0; /* REVISIT: -EINVAL */
}
/* Disables clock without considering parent dependencies or use count */
-void _omap2_clk_disable(struct clk *clk)
+static void _omap2_clk_disable(struct clk *clk)
{
u32 regval32;
return;
}
- if (clk->enable_reg == 0) {
+ if (!clk->enable_reg) {
/*
* 'Independent' here refers to a clock which is not
* controlled by its parent.
{
if (clk->usecount > 0 && !(--clk->usecount)) {
_omap2_clk_disable(clk);
- if (likely((u32)clk->parent))
+ if (clk->parent)
omap2_clk_disable(clk->parent);
if (clk->clkdm)
omap2_clkdm_clk_disable(clk->clkdm, clk);
int ret = 0;
if (clk->usecount++ == 0) {
- if (likely((u32)clk->parent))
+ if (clk->parent)
ret = omap2_clk_enable(clk->parent);
- if (unlikely(ret != 0)) {
+ if (ret != 0) {
clk->usecount--;
return ret;
}
ret = _omap2_clk_enable(clk);
- if (unlikely(ret != 0)) {
+ if (ret != 0) {
if (clk->clkdm)
omap2_clkdm_clk_disable(clk->clkdm, clk);
if (div == 0)
return;
- if (unlikely(clk->rate == clk->parent->rate / div))
+ if (clk->rate == (clk->parent->rate / div))
return;
clk->rate = clk->parent->rate / div;
pr_debug("clock: new clock rate is %ld (div %d)\n", clk->rate, div);
- if (unlikely(clk->flags & RATE_PROPAGATES))
+ if (clk->flags & RATE_PROPAGATES)
propagate_rate(clk);
}
* the element associated with the supplied parent clock address.
* Returns a pointer to the struct clksel on success or NULL on error.
*/
-const struct clksel *omap2_get_clksel_by_parent(struct clk *clk,
- struct clk *src_clk)
+static const struct clksel *omap2_get_clksel_by_parent(struct clk *clk,
+ struct clk *src_clk)
{
const struct clksel *clks;
*new_div = 1;
clks = omap2_get_clksel_by_parent(clk, clk->parent);
- if (clks == NULL)
+ if (!clks)
return ~0;
for (clkr = clks->rates; clkr->div; clkr++) {
/* Given a clock and a rate apply a clock specific rounding function */
long omap2_clk_round_rate(struct clk *clk, unsigned long rate)
{
- if (clk->round_rate != 0)
+ if (clk->round_rate)
return clk->round_rate(clk, rate);
if (clk->flags & RATE_FIXED)
const struct clksel_rate *clkr;
clks = omap2_get_clksel_by_parent(clk, clk->parent);
- if (clks == NULL)
+ if (!clks)
return 0;
for (clkr = clks->rates; clkr->div; clkr++) {
WARN_ON(div == 0);
clks = omap2_get_clksel_by_parent(clk, clk->parent);
- if (clks == NULL)
+ if (!clks)
return 0;
for (clkr = clks->rates; clkr->div; clkr++) {
*
* Returns the address of the clksel register upon success or NULL on error.
*/
-void __iomem *omap2_get_clksel(struct clk *clk, u32 *field_mask)
+static void __iomem *omap2_get_clksel(struct clk *clk, u32 *field_mask)
{
- if (unlikely((clk->clksel_reg == 0) || (clk->clksel_mask == 0)))
+ if (!clk->clksel_reg || (clk->clksel_mask == 0))
return NULL;
*field_mask = clk->clksel_mask;
void __iomem *div_addr;
div_addr = omap2_get_clksel(clk, &field_mask);
- if (div_addr == 0)
+ if (!div_addr)
return 0;
field_val = __raw_readl(div_addr) & field_mask;
return -EINVAL;
div_addr = omap2_get_clksel(clk, &field_mask);
- if (div_addr == 0)
+ if (!div_addr)
return -EINVAL;
field_val = omap2_divisor_to_clksel(clk, new_div);
return -EINVAL;
/* dpll_ck, core_ck, virt_prcm_set; plus all clksel clocks */
- if (clk->set_rate != 0)
+ if (clk->set_rate)
ret = clk->set_rate(clk, rate);
- if (unlikely(ret == 0 && (clk->flags & RATE_PROPAGATES)))
+ if (ret == 0 && (clk->flags & RATE_PROPAGATES))
propagate_rate(clk);
return ret;
const struct clksel_rate *clkr;
*parent_div = 0;
- *src_addr = 0;
+ *src_addr = NULL;
clks = omap2_get_clksel_by_parent(clk, src_clk);
- if (clks == NULL)
+ if (!clks)
return 0;
for (clkr = clks->rates; clkr->div; clkr++) {
void __iomem *src_addr;
u32 field_val, field_mask, reg_val, parent_div;
- if (unlikely(clk->flags & CONFIG_PARTICIPANT))
+ if (clk->flags & CONFIG_PARTICIPANT)
return -EINVAL;
if (!clk->clksel)
field_val = omap2_clksel_get_src_field(&src_addr, new_parent,
&field_mask, clk, &parent_div);
- if (src_addr == 0)
+ if (!src_addr)
return -EINVAL;
if (clk->usecount > 0)
pr_debug("clock: set parent of %s to %s (new rate %ld)\n",
clk->name, clk->parent->name, clk->rate);
- if (unlikely(clk->flags & RATE_PROPAGATES))
+ if (clk->flags & RATE_PROPAGATES)
propagate_rate(clk);
return 0;
return 0;
}
-static unsigned long _dpll_compute_new_rate(unsigned long parent_rate, unsigned int m, unsigned int n)
+static unsigned long _dpll_compute_new_rate(unsigned long parent_rate,
+ unsigned int m, unsigned int n)
{
unsigned long long num;
/* The maximum error between a target DPLL rate and the rounded rate in Hz */
#define DEFAULT_DPLL_RATE_TOLERANCE 50000
+int omap2_clk_init(void);
int omap2_clk_enable(struct clk *clk);
void omap2_clk_disable(struct clk *clk);
long omap2_clk_round_rate(struct clk *clk, unsigned long rate);
int omap2_clk_set_rate(struct clk *clk, unsigned long rate);
int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent);
-int omap2_dpll_rate_tolerance_set(struct clk *clk, unsigned int tolerance);
+int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance);
long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate);
#ifdef CONFIG_OMAP_RESET_CLOCKS
int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
u32 omap2_get_dpll_rate(struct clk *clk);
int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
+void omap2_clk_prepare_for_reboot(void);
extern u8 cpu_mask;
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/clk.h>
-
+#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/cpufreq.h>
#include <asm/arch/clock.h>
#include <asm/arch/sram.h>
#include <asm/div64.h>
-#include <asm/bitops.h>
#include "memory.h"
#include "clock.h"
* Uses the current prcm set to tell if a rate is valid.
* You can go slower, but not faster within a given rate set.
*/
-long omap2_dpllcore_round_rate(unsigned long target_rate)
+static long omap2_dpllcore_round_rate(unsigned long target_rate)
{
u32 high, low, core_clk_src;
/* Major subsystem dividers */
tmp = cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK;
- cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD, CM_CLKSEL1);
+ cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD,
+ CM_CLKSEL1);
+
if (cpu_is_omap2430())
cm_write_mod_reg(prcm->cm_clksel_mdm,
OMAP2430_MDM_MOD, CM_CLKSEL);
}
if (i == 0) {
- printk(KERN_WARNING "%s: failed to initialize frequency table\n",
- __FUNCTION__);
+ printk(KERN_WARNING "%s: failed to initialize frequency "
+ "table\n", __func__);
return;
}
static u32 omap2_get_apll_clkin(void)
{
- u32 aplls, sclk = 0;
+ u32 aplls, srate = 0;
aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
aplls &= OMAP24XX_APLLS_CLKIN_MASK;
aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
if (aplls == APLLS_CLKIN_19_2MHZ)
- sclk = 19200000;
+ srate = 19200000;
else if (aplls == APLLS_CLKIN_13MHZ)
- sclk = 13000000;
+ srate = 13000000;
else if (aplls == APLLS_CLKIN_12MHZ)
- sclk = 12000000;
+ srate = 12000000;
- return sclk;
+ return srate;
}
static u32 omap2_get_sysclkdiv(void)
}
-struct clockdomain *_clkdm_lookup(const char *name)
+static struct clockdomain *_clkdm_lookup(const char *name)
{
struct clockdomain *clkdm, *temp_clkdm;
* pointer to an array of clockdomain-powerdomain autodependencies was
* provided, register those. No return value.
*/
-void clkdm_init(struct clockdomain **clkdms, struct clkdm_pwrdm_autodep *init_autodeps)
+void clkdm_init(struct clockdomain **clkdms,
+ struct clkdm_pwrdm_autodep *init_autodeps)
{
struct clockdomain **c = NULL;
struct clkdm_pwrdm_autodep *autodep = NULL;
* published by the Free Software Foundation.
*/
-#include <asm/io.h>
+#include <linux/io.h>
#include "prcm-common.h"
#ifndef __ASSEMBLER__
#define OMAP_CM_REGADDR(module, reg) \
- (void __iomem *)IO_ADDRESS(OMAP2_CM_BASE + (module) + (reg))
+ (__force void __iomem *)IO_ADDRESS(OMAP2_CM_BASE + (module) + (reg))
#else
#define OMAP2420_CM_REGADDR(module, reg) \
IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/irq.h>
-#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/atomic.h>
#include <asm/mach/time.h>
#include <asm/mach/irq.h>
static u32 omap2_read_32k_sync_counter(void)
{
- return omap_readl(OMAP2_32KSYNCT_BASE + 0x0010);
+ return omap_readl(OMAP2_32KSYNCT_BASE + 0x0010);
}
#ifdef CONFIG_PM_DEBUG
BUG_ON(serial_console_clock_disabled);
if (clk_get_usecount(console_fclk) == 0)
return;
- if ((int) serial_console_next_disable - (int) omap2_read_32k_sync_counter() >= 0)
+ if ((int) serial_console_next_disable -
+ (int) omap2_read_32k_sync_counter() >= 0)
return;
serial_wait_tx();
clk_disable(console_iclk);
prm_set_mod_reg_bits(OMAP24XX_ST_UART2, CORE_MOD, PM_WKEN1);
break;
case 3:
- prm_set_mod_reg_bits(OMAP24XX_ST_UART3, CORE_MOD, OMAP24XX_PM_WKEN2);
+ prm_set_mod_reg_bits(OMAP24XX_ST_UART3, CORE_MOD,
+ OMAP24XX_PM_WKEN2);
break;
}
}
if (!resume)
#if defined(CONFIG_NO_IDLE_HZ) || defined(CONFIG_NO_HZ)
- printk("--- Going to %s %s (next timer after %u ms)\n", s1, s2,
- jiffies_to_msecs(get_next_timer_interrupt(jiffies) -
- jiffies));
+ pr_debug("--- Going to %s %s (next timer after %u ms)\n", s1,
+ s2,
+ jiffies_to_msecs(get_next_timer_interrupt(jiffies) -
+ jiffies));
#else
- printk("--- Going to %s %s\n", s1, s2);
+ pr_debug("--- Going to %s %s\n", s1, s2);
#endif
else
- printk("--- Woke up (slept for %u.%03u ms)\n", us / 1000, us % 1000);
+ pr_debug("--- Woke up (slept for %u.%03u ms)\n", us / 1000,
+ us % 1000);
+
for (i = 0; i < reg_count; i++)
- printk("%-20s: 0x%08x\n", regs[i].name, regs[i].val);
+ pr_debug("%-20s: 0x%08x\n", regs[i].name, regs[i].val);
}
#else
}
static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr,
- const char * buf, size_t n)
+ const char *buf, size_t n)
{
unsigned short value;
if (sscanf(buf, "%hu", &value) != 1 ||
static int omap2_irq_pending(void)
{
- u32 pending_reg = IO_ADDRESS(0x480fe098);
+ u32 pending_reg = 0x480fe098;
int i;
for (i = 0; i < 4; i++) {
- if (__raw_readl(pending_reg))
+ if (omap_readl(pending_reg))
return 1;
pending_reg += 0x20;
}
/* The peripherals seem not to be able to wake up the MPU when
* it is in retention mode. */
if (omap2_allow_mpu_retention()) {
- /* REVISIT: These write to reserved bits? */
+ /* REVISIT: These write to reserved bits? */
prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1);
prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2);
prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST);
WKUP_MOD, PM_WKEN);
}
-int __init omap2_pm_init(void)
+static int __init omap2_pm_init(void)
{
u32 l;
int error;
return v;
}
-struct powerdomain *_pwrdm_lookup(const char *name)
+static struct powerdomain *_pwrdm_lookup(const char *name)
{
struct powerdomain *pwrdm, *temp_pwrdm;
#include <linux/clk.h>
#include <linux/io.h>
+#include <asm/arch/prcm.h>
+
+#include "clock.h"
#include "prm.h"
#include "prm-regbits-24xx.h"
-extern void omap2_clk_prepare_for_reboot(void);
-
u32 omap_prcm_get_reset_sources(void)
{
/* XXX This presumably needs modification for 34XX */
s16 prcm_offs;
omap2_clk_prepare_for_reboot();
- if (cpu_is_omap24xx()) {
+ if (cpu_is_omap24xx())
prcm_offs = WKUP_MOD;
- } else if (cpu_is_omap34xx()) {
+ else if (cpu_is_omap34xx())
prcm_offs = OMAP3430_GR_MOD;
- } else {
+ else
WARN_ON(1);
- }
prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);
}
* published by the Free Software Foundation.
*/
-#include <asm/io.h>
-#include <asm/bitops.h>
+#include <linux/io.h>
+#include <linux/bitops.h>
#include "prcm-common.h"
#ifndef __ASSEMBLER__
#define OMAP_PRM_REGADDR(module, reg) \
- (void __iomem *)IO_ADDRESS(OMAP2_PRM_BASE + (module) + (reg))
+ (__force void __iomem *)IO_ADDRESS(OMAP2_PRM_BASE + (module) + (reg))
#else
#define OMAP2420_PRM_REGADDR(module, reg) \
IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg))
#ifndef __ARCH_ARM_OMAP_CLOCK_H
#define __ARCH_ARM_OMAP_CLOCK_H
-#include <asm/arch/clockdomain.h>
-
struct module;
struct clk;
+struct clockdomain;
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
extern unsigned int mpurate;
-extern int clk_init(struct clk_functions * custom_clocks);
+extern int clk_init(struct clk_functions *custom_clocks);
extern int clk_register(struct clk *clk);
extern void clk_unregister(struct clk *clk);
extern void propagate_rate(struct clk *clk);
extern void recalculate_root_clocks(void);
-extern void followparent_recalc(struct clk * clk);
+extern void followparent_recalc(struct clk *clk);
extern void clk_allow_idle(struct clk *clk);
extern void clk_deny_idle(struct clk *clk);
extern int clk_get_usecount(struct clk *clk);
int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst);
int pwrdm_read_next_pwrst(struct powerdomain *pwrdm);
+int pwrdm_read_pwrst(struct powerdomain *pwrdm);
int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm);
int pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm);
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#ifndef __ASM_ARM_ARCH_DPM_PRCM_H
-#define __ASM_ARM_ARCH_DPM_PRCM_H
+#ifndef __ASM_ARM_ARCH_OMAP_PRCM_H
+#define __ASM_ARM_ARCH_OMAP_PRCM_H
u32 omap_prcm_get_reset_sources(void);
+void omap_prcm_arch_reset(char mode);
#endif
projects / linux-2.6-omap-h63xx.git / commitdiff