blob: d35d69d6588c4a182106f4951be34c4826f99211 [file] [log] [blame] [edit]
// SPDX-License-Identifier: GPL-2.0-only
/*
* I/O access functions for Hexagon
*
* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
*/
#include <asm/io.h>
/* These are all FIFO routines! */
/*
* __raw_readsw - read words a short at a time
* @addr: source address
* @data: data address
* @len: number of shorts to read
*/
void __raw_readsw(const void __iomem *addr, void *data, int len)
{
const volatile short int *src = (short int *) addr;
short int *dst = (short int *) data;
if ((u32)data & 0x1)
panic("unaligned pointer to readsw");
while (len-- > 0)
*dst++ = *src;
}
/*
* __raw_writesw - read words a short at a time
* @addr: source address
* @data: data address
* @len: number of shorts to read
*/
void __raw_writesw(void __iomem *addr, const void *data, int len)
{
const short int *src = (short int *)data;
volatile short int *dst = (short int *)addr;
if ((u32)data & 0x1)
panic("unaligned pointer to writesw");
while (len-- > 0)
*dst = *src++;
}
/* Pretty sure len is pre-adjusted for the length of the access already */
void __raw_readsl(const void __iomem *addr, void *data, int len)
{
const volatile long *src = (long *) addr;
long *dst = (long *) data;
if ((u32)data & 0x3)
panic("unaligned pointer to readsl");
while (len-- > 0)
*dst++ = *src;
}
void __raw_writesl(void __iomem *addr, const void *data, int len)
{
const long *src = (long *)data;
volatile long *dst = (long *)addr;
if ((u32)data & 0x3)
panic("unaligned pointer to writesl");
while (len-- > 0)
*dst = *src++;
}