| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /*******************************************************************************
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| 2 | * Copyright (C) 2007, ZTE Corporation.
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| 3 | *
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| 4 | * File Name:
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| 5 | * File Mark:
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| 6 | * Description:
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| 7 | * Others:
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| 8 | * Version: 1.0
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| 9 | * Author: geanfeng
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| 10 | * Date: 2013-09-25
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| 11 | * History 1:
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| 12 | * Date:
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| 13 | * Version:
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| 14 | * Author:
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| 15 | * Modification:
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| 16 | * History 2:
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| 17 | ********************************************************************************/
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| 18 |
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| 19 | #ifndef _DRVS_REGIO_H_
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| 20 | #define _DRVS_REGIO_H_
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| 21 |
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| 22 | /****************************************************************************
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| 23 | * Include files
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| 24 | ****************************************************************************/
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| 25 |
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| 26 | /****************************************************************************
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| 27 | * Macros
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| 28 | ****************************************************************************/
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| 29 |
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| 30 |
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| 31 | /****************************************************************************
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| 32 | * Types
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| 33 | ****************************************************************************/
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| 34 |
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| 35 | /****************************************************************************
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| 36 | * Constants
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| 37 | ****************************************************************************/
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| 38 |
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| 39 | /****************************************************************************
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| 40 | * Global Variables
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| 41 | ****************************************************************************/
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| 42 |
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| 43 | /****************************************************************************
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| 44 | * Function Prototypes
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| 45 | ****************************************************************************/
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| 46 | #ifdef _OS_TOS
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| 47 | #define wfi() __asm__ __volatile__ ("wfi" : : : "memory")
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| 48 |
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| 49 | /*
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| 50 | * memory barriers
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| 51 | */
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| 52 | #define isb() __asm__ __volatile__ ("isb" : : : "memory")
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| 53 | #define dsb() __asm__ __volatile__ ("dsb" : : : "memory")
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| 54 | #define dmb() __asm__ __volatile__ ("dmb" : : : "memory")
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| 55 |
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| 56 | #define wmb() do { dsb(); zDrvL2x0_Sync(); } while (0)
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| 57 | #define rmb() dsb()
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| 58 | #endif
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| 59 |
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| 60 | /****************************************************************************
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| 61 | * io operation definition
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| 62 | ****************************************************************************/
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| 63 | /*
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| 64 | * io operation without memory barriers
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| 65 | */
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| 66 | #define reg(addr) (*(volatile unsigned *)(addr))
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| 67 | #define reg8(addr) (*(volatile unsigned char *)(addr))
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| 68 | #define reg16(addr) (*(volatile unsigned short *)(addr))
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| 69 | #define reg32(addr) (*(volatile unsigned long *)(addr))
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| 70 |
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| 71 | /*
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| 72 | * io operation with memory barriers
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| 73 | * cortex-R7 has out-of-order instruction execution
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| 74 | * these macro functions below maybe used in some special case
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| 75 | */
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| 76 | #define ioread8(p) ({ unsigned char __v = reg8(p); rmb(); __v; })
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| 77 | #define ioread16(p) ({ unsigned short __v = reg16(p)); rmb(); __v; })
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| 78 | #define ioread32(p) ({ unsigned long __v = reg32(p)); rmb(); __v; })
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| 79 |
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| 80 | #define iowrite8(v,p) ({ wmb(); reg8(p) = v; })
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| 81 | #define iowrite16(v,p) ({ wmb(); reg16(p) = v; })
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| 82 | #define iowrite32(v,p) ({ wmb(); reg32(p) = v; })
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| 83 |
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| 84 | VOID zDrv_MemcpyToIo32(VOID *dst, VOID *src, UINT32 byteCount);
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| 85 |
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| 86 | #endif
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