This is a more proper isolation of the code. Done in preparation of making
PRM an individual driver.
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
arch/arm/mach-omap2/pm34xx.c | 49 +----------------------------------------
arch/arm/mach-omap2/prm3xxx.c | 45 +++++++++++++++++++++++++++++++++++++
arch/arm/mach-omap2/prm3xxx.h | 1 +
3 files changed, 47 insertions(+), 48 deletions(-)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index bba96c1..a42f9ea 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -350,53 +350,6 @@ restore:
#endif /* CONFIG_SUSPEND */
-
-/**
- * omap3_iva_idle(): ensure IVA is in idle so it can be put into
- * retention
- *
- * In cases where IVA2 is activated by bootcode, it may prevent
- * full-chip retention or off-mode because it is not idle. This
- * function forces the IVA2 into idle state so it can go
- * into retention/off and thus allow full-chip retention/off.
- *
- **/
-static void __init omap3_iva_idle(void)
-{
- /* ensure IVA2 clock is disabled */
- omap2_cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN);
-
- /* if no clock activity, nothing else to do */
- if (!(omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKSTST) &
- OMAP3430_CLKACTIVITY_IVA2_MASK))
- return;
-
- /* Reset IVA2 */
- omap2_prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK |
- OMAP3430_RST2_IVA2_MASK |
- OMAP3430_RST3_IVA2_MASK,
- OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
-
- /* Enable IVA2 clock */
- omap2_cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK,
- OMAP3430_IVA2_MOD, CM_FCLKEN);
-
- /* Set IVA2 boot mode to 'idle' */
- omap3_ctrl_set_iva_bootmode_idle();
-
- /* Un-reset IVA2 */
- omap2_prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
-
- /* Disable IVA2 clock */
- omap2_cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN);
-
- /* Reset IVA2 */
- omap2_prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK |
- OMAP3430_RST2_IVA2_MASK |
- OMAP3430_RST3_IVA2_MASK,
- OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
-}
-
static void __init omap3_d2d_idle(void)
{
u16 mask, padconf;
@@ -500,7 +453,7 @@ static void __init prcm_setup_regs(void)
/*
* We need to idle iva2_pwrdm even on am3703 with no iva2.
*/
- omap3_iva_idle();
+ omap3xxx_prm_iva_idle();
omap3_d2d_idle();
}
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 7d17edc..78ea9a5 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -28,6 +28,7 @@
#include "prm-regbits-34xx.h"
#include "cm3xxx.h"
#include "cm-regbits-34xx.h"
+#include "control.h"
static const struct omap_prcm_irq omap3_prcm_irqs[] = {
OMAP_PRCM_IRQ("wkup", 0, 0),
@@ -328,6 +329,50 @@ static u32 omap3xxx_prm_read_reset_sources(void)
return r;
}
+/**
+ * omap3xxx_prm_iva_idle - ensure IVA is in idle so it can be put into retention
+ *
+ * In cases where IVA2 is activated by bootcode, it may prevent
+ * full-chip retention or off-mode because it is not idle. This
+ * function forces the IVA2 into idle state so it can go
+ * into retention/off and thus allow full-chip retention/off.
+ */
+void omap3xxx_prm_iva_idle(void)
+{
+ /* ensure IVA2 clock is disabled */
+ omap2_cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN);
+
+ /* if no clock activity, nothing else to do */
+ if (!(omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKSTST) &
+ OMAP3430_CLKACTIVITY_IVA2_MASK))
+ return;
+
+ /* Reset IVA2 */
+ omap2_prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK |
+ OMAP3430_RST2_IVA2_MASK |
+ OMAP3430_RST3_IVA2_MASK,
+ OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
+
+ /* Enable IVA2 clock */
+ omap2_cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK,
+ OMAP3430_IVA2_MOD, CM_FCLKEN);
+
+ /* Set IVA2 boot mode to 'idle' */
+ omap3_ctrl_set_iva_bootmode_idle();
+
+ /* Un-reset IVA2 */
+ omap2_prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
+
+ /* Disable IVA2 clock */
+ omap2_cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN);
+
+ /* Reset IVA2 */
+ omap2_prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK |
+ OMAP3430_RST2_IVA2_MASK |
+ OMAP3430_RST3_IVA2_MASK,
+ OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
+}
+
/* Powerdomain low-level functions */
static int omap3_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index ba602f5..543eb63 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -163,6 +163,7 @@ extern void omap3xxx_prm_dpll3_reset(void);
extern int __init omap3xxx_prm_init(void);
extern u32 omap3xxx_prm_get_reset_sources(void);
int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits);
+void omap3xxx_prm_iva_idle(void);
#endif /* __ASSEMBLER */
--
1.7.9.5
--
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