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// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
* Copyright (C) 2010 by Oleksandr Tymoshenko <gonzo@bluezbox.com> *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "target.h"
#include "jtag/jtag.h"
#include "avr32_jtag.h"
#include "avr32_mem.h"
int avr32_jtag_read_memory32(struct avr32_jtag *jtag_info,
uint32_t addr, int count, uint32_t *buffer)
{
int i, retval;
uint32_t data;
for (i = 0; i < count; i++) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*4, &data);
if (retval != ERROR_OK)
return retval;
/* XXX: Assume AVR32 is BE */
buffer[i] = be_to_h_u32((uint8_t *)&data);
}
return ERROR_OK;
}
int avr32_jtag_read_memory16(struct avr32_jtag *jtag_info,
uint32_t addr, int count, uint16_t *buffer)
{
int i, retval;
uint32_t data;
i = 0;
/* any unaligned half-words? */
if (addr & 3) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*2, &data);
if (retval != ERROR_OK)
return retval;
/* XXX: Assume AVR32 is BE */
data = be_to_h_u32((uint8_t *)&data);
buffer[i] = (data >> 16) & 0xffff;
i++;
}
/* read all complete words */
for (; i < (count & ~1); i += 2) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*2, &data);
if (retval != ERROR_OK)
return retval;
/* XXX: Assume AVR32 is BE */
data = be_to_h_u32((uint8_t *)&data);
buffer[i] = data & 0xffff;
buffer[i+1] = (data >> 16) & 0xffff;
}
/* last halfword */
if (i < count) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*2, &data);
if (retval != ERROR_OK)
return retval;
/* XXX: Assume AVR32 is BE */
data = be_to_h_u32((uint8_t *)&data);
buffer[i] = data & 0xffff;
}
return ERROR_OK;
}
int avr32_jtag_read_memory8(struct avr32_jtag *jtag_info,
uint32_t addr, int count, uint8_t *buffer)
{
int i, j, retval;
uint8_t data[4];
i = 0;
/* Do we have non-aligned bytes? */
if (addr & 3) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i, (uint32_t *)(void *)data);
if (retval != ERROR_OK)
return retval;
for (j = addr & 3; (j < 4) && (i < count); j++, i++)
buffer[i] = data[3-j];
}
/* read all complete words */
for (; i < (count & ~3); i += 4) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i, (uint32_t *)(void *)data);
if (retval != ERROR_OK)
return retval;
for (j = 0; j < 4; j++)
buffer[i+j] = data[3-j];
}
/* remaining bytes */
if (i < count) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i, (uint32_t *)(void *)data);
if (retval != ERROR_OK)
return retval;
for (j = 0; i + j < count; j++)
buffer[i+j] = data[3-j];
}
return ERROR_OK;
}
int avr32_jtag_write_memory32(struct avr32_jtag *jtag_info,
uint32_t addr, int count, const uint32_t *buffer)
{
int i, retval;
uint32_t data;
for (i = 0; i < count; i++) {
/* XXX: Assume AVR32 is BE */
h_u32_to_be((uint8_t *)&data, buffer[i]);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*4, data);
if (retval != ERROR_OK)
return retval;
}
return ERROR_OK;
}
int avr32_jtag_write_memory16(struct avr32_jtag *jtag_info,
uint32_t addr, int count, const uint16_t *buffer)
{
int i, retval;
uint32_t data;
uint32_t data_out;
i = 0;
/*
* Do we have any non-aligned half-words?
*/
if (addr & 3) {
/*
* mwa_read will read whole world, no need to fiddle
* with address. It will be truncated in set_addr
*/
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr, &data);
if (retval != ERROR_OK)
return retval;
data = be_to_h_u32((uint8_t *)&data);
data = (buffer[i] << 16) | (data & 0xffff);
h_u32_to_be((uint8_t *)&data_out, data);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr, data_out);
if (retval != ERROR_OK)
return retval;
i++;
}
/* write all complete words */
for (; i < (count & ~1); i += 2) {
/* XXX: Assume AVR32 is BE */
data = (buffer[i+1] << 16) | buffer[i];
h_u32_to_be((uint8_t *)&data_out, data);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*2, data_out);
if (retval != ERROR_OK)
return retval;
}
/* last halfword */
if (i < count) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*2, &data);
if (retval != ERROR_OK)
return retval;
data = be_to_h_u32((uint8_t *)&data);
data &= ~0xffff;
data |= buffer[i];
h_u32_to_be((uint8_t *)&data_out, data);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr + i*2, data_out);
if (retval != ERROR_OK)
return retval;
}
return ERROR_OK;
}
int avr32_jtag_write_memory8(struct avr32_jtag *jtag_info,
uint32_t addr, int count, const uint8_t *buffer)
{
int i, j, retval;
uint32_t data;
uint32_t data_out;
i = 0;
/*
* Do we have any non-aligned bytes?
*/
if (addr & 3) {
/*
* mwa_read will read whole world, no need to fiddle
* with address. It will be truncated in set_addr
*/
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr, &data);
if (retval != ERROR_OK)
return retval;
data = be_to_h_u32((uint8_t *)&data);
for (j = addr & 3; (j < 4) && (i < count); j++, i++) {
data &= ~(0xff << j*8);
data |= (buffer[i] << j*8);
}
h_u32_to_be((uint8_t *)&data_out, data);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr, data_out);
if (retval != ERROR_OK)
return retval;
}
/* write all complete words */
for (; i < (count & ~3); i += 4) {
data = 0;
for (j = 0; j < 4; j++)
data |= (buffer[j+i] << j*8);
h_u32_to_be((uint8_t *)&data_out, data);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr + i, data_out);
if (retval != ERROR_OK)
return retval;
}
/*
* Write trailing bytes
*/
if (i < count) {
retval = avr32_jtag_mwa_read(jtag_info, SLAVE_HSB_UNCACHED,
addr + i, &data);
if (retval != ERROR_OK)
return retval;
data = be_to_h_u32((uint8_t *)&data);
for (j = 0; i < count; j++, i++) {
data &= ~(0xff << j*8);
data |= (buffer[j+i] << j*8);
}
h_u32_to_be((uint8_t *)&data_out, data);
retval = avr32_jtag_mwa_write(jtag_info, SLAVE_HSB_UNCACHED,
addr+i, data_out);
if (retval != ERROR_OK)
return retval;
}
return ERROR_OK;
}
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