113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*-
|
|
* Copyright (c) 2012 Semihalf.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/slicer.h>
|
|
|
|
#include <dev/fdt/fdt_common.h>
|
|
|
|
#ifdef DEBUG
|
|
#define debugf(fmt, args...) do { printf("%s(): ", __func__); \
|
|
printf(fmt,##args); } while (0)
|
|
#else
|
|
#define debugf(fmt, args...)
|
|
#endif
|
|
|
|
int
|
|
flash_fill_slices(device_t dev, struct flash_slice *slices, int *slices_num)
|
|
{
|
|
char *slice_name;
|
|
phandle_t dt_node, dt_child;
|
|
u_long base, size;
|
|
int i;
|
|
ssize_t name_len;
|
|
|
|
/*
|
|
* We assume the caller provides buffer for FLASH_SLICES_MAX_NUM
|
|
* flash_slice structures.
|
|
*/
|
|
if (slices == NULL) {
|
|
*slices_num = 0;
|
|
return (ENOMEM);
|
|
}
|
|
|
|
dt_node = ofw_bus_get_node(dev);
|
|
for (dt_child = OF_child(dt_node), i = 0; dt_child != 0;
|
|
dt_child = OF_peer(dt_child)) {
|
|
|
|
if (i == FLASH_SLICES_MAX_NUM) {
|
|
debugf("not enough buffer for slice i=%d\n", i);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Retrieve start and size of the slice.
|
|
*/
|
|
if (fdt_regsize(dt_child, &base, &size) != 0) {
|
|
debugf("error during processing reg property, i=%d\n",
|
|
i);
|
|
continue;
|
|
}
|
|
|
|
if (size == 0) {
|
|
debugf("slice i=%d with no size\n", i);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Retrieve label.
|
|
*/
|
|
name_len = OF_getprop_alloc(dt_child, "label", sizeof(char),
|
|
(void **)&slice_name);
|
|
if (name_len <= 0) {
|
|
/* Use node name if no label defined */
|
|
name_len = OF_getprop_alloc(dt_child, "name", sizeof(char),
|
|
(void **)&slice_name);
|
|
if (name_len <= 0) {
|
|
debugf("slice i=%d with no name\n", i);
|
|
slice_name = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Fill slice entry data.
|
|
*/
|
|
slices[i].base = base;
|
|
slices[i].size = size;
|
|
slices[i].label = slice_name;
|
|
i++;
|
|
}
|
|
|
|
*slices_num = i;
|
|
return (0);
|
|
}
|