#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/io.h>
#include <plat/prcm.h>
#include "soc.h"
#include "iomap.h"
#include "common.h"
#include "vp.h"
#include "prm44xx.h"
#include "prm-regbits-44xx.h"
#include "prcm44xx.h"
#include "prminst44xx.h"

Data Structures
struct	omap4_vp

Functions
u32	omap4_prm_read_inst_reg (s16 inst, u16 reg)

void	omap4_prm_write_inst_reg (u32 val, s16 inst, u16 reg)

u32	omap4_prm_rmw_inst_reg_bits (u32 mask, u32 bits, s16 inst, s16 reg)

u32	omap4_prm_vp_check_txdone (u8 vp_id)

void	omap4_prm_vp_clear_txdone (u8 vp_id)

u32	omap4_prm_vcvp_read (u8 offset)

void	omap4_prm_vcvp_write (u32 val, u8 offset)

u32	omap4_prm_vcvp_rmw (u32 mask, u32 bits, u8 offset)

void	omap44xx_prm_read_pending_irqs (unsigned long *events)

void	omap44xx_prm_ocp_barrier (void)

void	omap44xx_prm_save_and_clear_irqen (u32 *saved_mask)

void	omap44xx_prm_restore_irqen (u32 *saved_mask)

void	omap44xx_prm_reconfigure_io_chain (void)

	subsys_initcall (omap4xxx_prcm_init)

Function Documentation

void omap44xx_prm_ocp_barrier ( void )

omap44xx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete

Force any buffered writes to the PRM IP block to complete. Needed by the PRM IRQ handler, which reads and writes directly to the IP block, to avoid race conditions after acknowledging or clearing IRQ bits. No return value.

Definition at line 181 of file prm44xx.c.

void omap44xx_prm_read_pending_irqs ( unsigned long * events )

omap44xx_prm_read_pending_irqs - read pending PRM MPU IRQs into : ptr to two consecutive u32s, preallocated by caller

Read PRM_IRQSTATUS_MPU* bits, AND'ed with the currently-enabled PRM MPU IRQs, and store the result into the two u32s pointed to by . No return value.

Definition at line 164 of file prm44xx.c.

void omap44xx_prm_reconfigure_io_chain ( void )

omap44xx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain

Clear any previously-latched I/O wakeup events and ensure that the I/O wakeup gates are aligned with the current mux settings. Works by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then deasserting WUCLKIN and waiting for WUCLKOUT to be deasserted. No return value. XXX Are the final two steps necessary?

Definition at line 244 of file prm44xx.c.

void omap44xx_prm_restore_irqen ( u32 * saved_mask )

omap44xx_prm_restore_irqen - set PRM_IRQENABLE_MPU* registers from args : ptr to a u32 array of IRQENABLE bits saved previously

Restore the PRM_IRQENABLE_MPU and PRM_IRQENABLE_MPU_2 registers from . Intended to be used in the PRM interrupt handler resume callback to restore values saved by omap44xx_prm_save_and_clear_irqen(). No OCP barrier should be needed here; any pending PRM interrupts will fire once the writes reach the PRM. No return value.

Definition at line 227 of file prm44xx.c.

void omap44xx_prm_save_and_clear_irqen ( u32 * saved_mask )

omap44xx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU* regs : ptr to a u32 array to save IRQENABLE bits

Save the PRM_IRQENABLE_MPU and PRM_IRQENABLE_MPU_2 registers to . must be allocated by the caller. Intended to be used in the PRM interrupt handler suspend callback. The OCP barrier is needed to ensure the write to disable PRM interrupts reaches the PRM before returning; otherwise, spurious interrupts might occur. No return value.

Definition at line 198 of file prm44xx.c.

u32 omap4_prm_read_inst_reg	(	s16	inst,
		u16	reg
	)

Definition at line 52 of file prm44xx.c.

u32 omap4_prm_rmw_inst_reg_bits	(	u32	mask,
		u32	bits,
		s16	inst,
		s16	reg
	)

Definition at line 64 of file prm44xx.c.

u32 omap4_prm_vcvp_read ( u8 offset )

Definition at line 124 of file prm44xx.c.

u32 omap4_prm_vcvp_rmw	(	u32	mask,
		u32	bits,
		u8	offset
	)

Definition at line 136 of file prm44xx.c.

void omap4_prm_vcvp_write	(	u32	val,
		u8	offset
	)

Definition at line 130 of file prm44xx.c.

u32 omap4_prm_vp_check_txdone ( u8 vp_id )

Definition at line 103 of file prm44xx.c.

void omap4_prm_vp_clear_txdone ( u8 vp_id )

Definition at line 114 of file prm44xx.c.

void omap4_prm_write_inst_reg	(	u32	val,
		s16	inst,
		u16	reg
	)

Definition at line 58 of file prm44xx.c.

subsys_initcall ( omap4xxx_prcm_init )

Data Structures

Functions

Function Documentation