2 * Copyright (c) 2012 Semihalf.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/slicer.h>
35 #include <dev/fdt/fdt_common.h>
36 #include <dev/ofw/ofw_bus.h>
37 #include <dev/ofw/openfirm.h>
40 #define debugf(fmt, args...) do { printf("%s(): ", __func__); \
41 printf(fmt,##args); } while (0)
43 #define debugf(fmt, args...)
46 static int fdt_flash_fill_slices(device_t dev, const char *provider,
47 struct flash_slice *slices, int *slices_num);
48 static void fdt_slicer_init(void);
51 fdt_flash_fill_slices(device_t dev, const char *provider __unused,
52 struct flash_slice *slices, int *slices_num)
55 phandle_t dt_node, dt_child;
61 * We assume the caller provides buffer for FLASH_SLICES_MAX_NUM
62 * flash_slice structures.
69 dt_node = ofw_bus_get_node(dev);
70 for (dt_child = OF_child(dt_node), i = 0; dt_child != 0;
71 dt_child = OF_peer(dt_child)) {
73 if (i == FLASH_SLICES_MAX_NUM) {
74 debugf("not enough buffer for slice i=%d\n", i);
79 * Retrieve start and size of the slice.
81 if (fdt_regsize(dt_child, &base, &size) != 0) {
82 debugf("error during processing reg property, i=%d\n",
88 debugf("slice i=%d with no size\n", i);
95 name_len = OF_getprop_alloc(dt_child, "label", sizeof(char),
96 (void **)&slice_name);
98 /* Use node name if no label defined */
99 name_len = OF_getprop_alloc(dt_child, "name",
100 sizeof(char), (void **)&slice_name);
102 debugf("slice i=%d with no name\n", i);
108 * Fill slice entry data.
110 slices[i].base = base;
111 slices[i].size = size;
112 slices[i].label = slice_name;
121 fdt_slicer_init(void)
124 flash_register_slicer(fdt_flash_fill_slices, FLASH_SLICES_TYPE_NAND,
126 flash_register_slicer(fdt_flash_fill_slices, FLASH_SLICES_TYPE_CFI,
128 flash_register_slicer(fdt_flash_fill_slices, FLASH_SLICES_TYPE_SPI,
133 * Must be initialized after GEOM classes (SI_SUB_DRIVERS/SI_ORDER_FIRST),
134 * i. e. after g_init() is called, due to the use of the GEOM topology_lock
135 * in flash_register_slicer(). However, must be before SI_SUB_CONFIGURE.
137 SYSINIT(fdt_slicer_rootconf, SI_SUB_DRIVERS, SI_ORDER_SECOND, fdt_slicer_init,