API definition to set prm setup times
Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@xxxxxxxxx>
---
arch/arm/mach-omap2/pm.h | 9 +++++++++
arch/arm/mach-omap2/pm34xx.c | 39 +++++++++++++++++++++++++++++++++------
2 files changed, 42 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 451f247..d79ea07 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -33,9 +33,18 @@ extern void *omap3_secure_ram_storage;
extern void omap2_block_sleep(void);
extern void omap2_allow_sleep(void);
#ifdef CONFIG_ARCH_OMAP3
+struct prm_setup_times {
+ u16 clksetup;
+ u16 voltsetup_time1;
+ u16 voltsetup_time2;
+ u16 voltoffset;
+ u16 voltsetup2;
+};
+
extern void omap3_pm_off_mode_enable(int);
extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
+extern void omap3_set_prm_setup_times(struct prm_setup_times *setup_times);
#else
#define omap3_pm_off_mode_enable(int) do {} while (0);
#define omap3_pm_get_suspend_state(pwrdm) do {} while (0);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 44189a0..f531638 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -85,6 +85,14 @@ static struct powerdomain *mpu_pwrdm, *neon_pwrdm;
static struct powerdomain *core_pwrdm, *per_pwrdm;
static struct powerdomain *cam_pwrdm;
+static struct prm_setup_times prm_setup = {
+ .clksetup = 0xff,
+ .voltsetup_time1 = 0xfff,
+ .voltsetup_time2 = 0xfff,
+ .voltoffset = 0xff,
+ .voltsetup2 = 0xff,
+};
+
static inline void omap3_per_save_context(void)
{
omap3_gpio_save_context();
@@ -880,6 +888,23 @@ int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state)
return -EINVAL;
}
+void omap3_set_prm_setup_times(struct prm_setup_times *setup_times)
+{
+ prm_setup.clksetup = setup_times->clksetup;
+ prm_setup.voltsetup_time1 = setup_times->voltsetup_time1;
+ prm_setup.voltsetup_time2 = setup_times->voltsetup_time2;
+ prm_setup.voltoffset = setup_times->voltoffset;
+ prm_setup.voltsetup2 = setup_times->voltsetup2;
+
+ printk("omap3_set_prm_setup_times %04x, %04x, %04x, %04x, %04x\n",
+ prm_setup.clksetup,
+ prm_setup.voltsetup_time1,
+ prm_setup.voltsetup_time2,
+ prm_setup.voltoffset,
+ prm_setup.voltsetup2);
+
+}
+
static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
{
struct power_state *pwrst;
@@ -1015,6 +1040,7 @@ err2:
static void __init configure_vc(void)
{
+
prm_write_mod_reg((R_SRI2C_SLAVE_ADDR << OMAP3430_SMPS_SA1_SHIFT) |
(R_SRI2C_SLAVE_ADDR << OMAP3430_SMPS_SA0_SHIFT),
OMAP3430_GR_MOD, OMAP3_PRM_VC_SMPS_SA_OFFSET);
@@ -1044,21 +1070,22 @@ static void __init configure_vc(void)
OMAP3430_GR_MOD,
OMAP3_PRM_VC_I2C_CFG_OFFSET);
- /* Setup voltctrl and other setup times */
+ /* Setup value for voltctrl */
prm_write_mod_reg(OMAP3430_AUTO_RET,
OMAP3430_GR_MOD, OMAP3_PRM_VOLTCTRL_OFFSET);
- prm_write_mod_reg(OMAP3430_CLKSETUP_DURATION, OMAP3430_GR_MOD,
+ /* Write setup times */
+ prm_write_mod_reg(prm_setup.clksetup, OMAP3430_GR_MOD,
OMAP3_PRM_CLKSETUP_OFFSET);
- prm_write_mod_reg((OMAP3430_VOLTSETUP_TIME2 <<
+ prm_write_mod_reg((prm_setup.voltsetup_time2 <<
OMAP3430_SETUP_TIME2_SHIFT) |
- (OMAP3430_VOLTSETUP_TIME1 <<
+ (prm_setup.voltsetup_time1 <<
OMAP3430_SETUP_TIME1_SHIFT),
OMAP3430_GR_MOD, OMAP3_PRM_VOLTSETUP1_OFFSET);
- prm_write_mod_reg(OMAP3430_VOLTOFFSET_DURATION, OMAP3430_GR_MOD,
+ prm_write_mod_reg(prm_setup.voltoffset, OMAP3430_GR_MOD,
OMAP3_PRM_VOLTOFFSET_OFFSET);
- prm_write_mod_reg(OMAP3430_VOLTSETUP2_DURATION, OMAP3430_GR_MOD,
+ prm_write_mod_reg(prm_setup.voltsetup2, OMAP3430_GR_MOD,
OMAP3_PRM_VOLTSETUP2_OFFSET);
}
--
1.5.6.3
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