Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Preloader to OS Handoff Information - isw_handoff

Description

These registers are used to store handoff infomation between the preloader and the OS. These 8 registers can be used to store any information. The contents of these registers have no impact on the state of the HPS hardware.

A total of 8 x 32 bit registers for Second State Boot Loader handoff

Reset only on a cold reset.

Register Layout

Bits Access Reset Description
[31:0] RW 0x0 ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF

Field : isw_handoff

Field Access Macros:

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_LSB   0
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_MSB   31
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_WIDTH   32
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_SET_MSK   0xffffffff
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_CLR_MSK   0x00000000
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_RESET   0x0
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_SYSMGR_ROM_ISW_HANDOFF_s
 

Macros

#define ALT_SYSMGR_ROM_ISW_HANDOFF_RESET   0x00000000
 
#define ALT_SYSMGR_ROM_ISW_HANDOFF_OFST   0x30
 

Typedefs

typedef struct
ALT_SYSMGR_ROM_ISW_HANDOFF_s 
ALT_SYSMGR_ROM_ISW_HANDOFF_t
 

Data Structure Documentation

struct ALT_SYSMGR_ROM_ISW_HANDOFF_s

WARNING: The C register and register group struct declarations are provided for convenience and illustrative purposes. They should, however, be used with caution as the C language standard provides no guarantees about the alignment or atomicity of device memory accesses. The recommended practice for writing hardware drivers is to use the SoCAL access macros and alt_read_word() and alt_write_word() functions.

The struct declaration for register ALT_SYSMGR_ROM_ISW_HANDOFF.

Data Fields
uint32_t isw_handoff: 32 ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF

Macro Definitions

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_LSB   0

The Least Significant Bit (LSB) position of the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_MSB   31

The Most Significant Bit (MSB) position of the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_WIDTH   32

The width in bits of the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_SET_MSK   0xffffffff

The mask used to set the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field value.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_CLR_MSK   0x00000000

The mask used to clear the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field value.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_RESET   0x0

The reset value of the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_GET (   value)    (((value) & 0xffffffff) >> 0)

Extracts the ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF field value from a register.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF_SET (   value)    (((value) << 0) & 0xffffffff)

Produces a ALT_SYSMGR_ROM_ISW_HANDOFF_ISW_HANDOFF register field value suitable for setting the register.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_RESET   0x00000000

The reset value of the ALT_SYSMGR_ROM_ISW_HANDOFF register.

#define ALT_SYSMGR_ROM_ISW_HANDOFF_OFST   0x30

The byte offset of the ALT_SYSMGR_ROM_ISW_HANDOFF register from the beginning of the component.

Typedef Documentation

The typedef declaration for register ALT_SYSMGR_ROM_ISW_HANDOFF.