2014-11-01 17:12:44 +00:00
|
|
|
/*-
|
|
|
|
* Copyright (c) 2009-2010 The FreeBSD Foundation
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* This software was developed by Semihalf under sponsorship from
|
|
|
|
* the FreeBSD Foundation.
|
|
|
|
*
|
|
|
|
* 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 <stand.h>
|
|
|
|
#include <fdt_platform.h>
|
|
|
|
|
|
|
|
#include "glue.h"
|
|
|
|
|
|
|
|
#define STR(number) #number
|
|
|
|
#define STRINGIFY(number) STR(number)
|
|
|
|
|
|
|
|
int
|
|
|
|
fdt_platform_load_dtb(void)
|
|
|
|
{
|
|
|
|
struct fdt_header *hdr;
|
|
|
|
const char *s;
|
|
|
|
char *p;
|
2016-04-29 22:42:59 +00:00
|
|
|
int rv;
|
2014-11-01 17:12:44 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If the U-boot environment contains a variable giving the address of a
|
|
|
|
* valid blob in memory, use it. The U-boot README says the right
|
|
|
|
* variable for fdt data loaded into ram is fdt_addr_r, so try that
|
|
|
|
* first. Board vendors also use both fdtaddr and fdt_addr names.
|
|
|
|
*/
|
|
|
|
s = ub_env_get("fdt_addr_r");
|
|
|
|
if (s == NULL)
|
|
|
|
s = ub_env_get("fdtaddr");
|
|
|
|
if (s == NULL)
|
|
|
|
s = ub_env_get("fdt_addr");
|
|
|
|
if (s != NULL && *s != '\0') {
|
|
|
|
hdr = (struct fdt_header *)strtoul(s, &p, 16);
|
|
|
|
if (*p == '\0') {
|
|
|
|
if (fdt_load_dtb_addr(hdr) == 0) {
|
|
|
|
printf("Using DTB provided by U-Boot at "
|
|
|
|
"address %p.\n", hdr);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-04-29 22:42:59 +00:00
|
|
|
rv = 1;
|
|
|
|
|
2014-11-01 17:12:44 +00:00
|
|
|
/*
|
2015-08-15 21:47:07 +00:00
|
|
|
* Try to get FDT filename first from loader env and then from u-boot env
|
2014-11-01 17:12:44 +00:00
|
|
|
*/
|
2015-08-15 21:47:07 +00:00
|
|
|
s = getenv("fdt_file");
|
|
|
|
if (s == NULL)
|
|
|
|
s = ub_env_get("fdtfile");
|
2014-11-01 17:12:44 +00:00
|
|
|
if (s == NULL)
|
|
|
|
s = ub_env_get("fdt_file");
|
|
|
|
if (s != NULL && *s != '\0') {
|
|
|
|
if (fdt_load_dtb_file(s) == 0) {
|
|
|
|
printf("Loaded DTB from file '%s'.\n", s);
|
2016-04-29 22:42:59 +00:00
|
|
|
rv = 0;
|
2014-11-01 17:12:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-04-29 22:42:59 +00:00
|
|
|
if (rv == 0) {
|
|
|
|
s = getenv("fdt_overlays");
|
|
|
|
if (s == NULL)
|
|
|
|
s = ub_env_get("fdt_overlays");
|
|
|
|
if (s != NULL && *s != '\0') {
|
|
|
|
printf("Loading DTB overlays: '%s'\n", s);
|
|
|
|
fdt_load_dtb_overlays(s);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (rv);
|
2014-11-01 17:12:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
fdt_platform_fixups(void)
|
|
|
|
{
|
2015-03-17 21:15:24 +00:00
|
|
|
static struct fdt_mem_region regions[UB_MAX_MR];
|
2014-11-01 17:12:44 +00:00
|
|
|
const char *env, *str;
|
|
|
|
char *end, *ethstr;
|
|
|
|
int eth_no, i, len, n;
|
|
|
|
struct sys_info *si;
|
|
|
|
|
|
|
|
env = NULL;
|
|
|
|
eth_no = 0;
|
|
|
|
ethstr = NULL;
|
|
|
|
|
2016-04-29 22:42:59 +00:00
|
|
|
/* Apply overlays before anything else */
|
|
|
|
fdt_apply_overlays();
|
|
|
|
|
2014-11-01 17:12:44 +00:00
|
|
|
/* Acquire sys_info */
|
|
|
|
si = ub_get_sys_info();
|
|
|
|
|
|
|
|
while ((env = ub_env_enum(env)) != NULL) {
|
|
|
|
if (strncmp(env, "eth", 3) == 0 &&
|
|
|
|
strncmp(env + (strlen(env) - 4), "addr", 4) == 0) {
|
|
|
|
/*
|
|
|
|
* Handle Ethernet addrs: parse uboot env eth%daddr
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (!eth_no) {
|
|
|
|
/*
|
|
|
|
* Check how many chars we will need to store
|
|
|
|
* maximal eth iface number.
|
|
|
|
*/
|
|
|
|
len = strlen(STRINGIFY(TMP_MAX_ETH)) +
|
|
|
|
strlen("ethernet") + 1;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Reserve mem for string "ethernet" and len
|
|
|
|
* chars for iface no.
|
|
|
|
*/
|
|
|
|
ethstr = (char *)malloc(len * sizeof(char));
|
|
|
|
bzero(ethstr, len * sizeof(char));
|
|
|
|
strcpy(ethstr, "ethernet0");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Extract interface number */
|
|
|
|
i = strtol(env + 3, &end, 10);
|
|
|
|
if (end == (env + 3))
|
|
|
|
/* 'ethaddr' means interface 0 address */
|
|
|
|
n = 0;
|
|
|
|
else
|
|
|
|
n = i;
|
|
|
|
|
|
|
|
if (n > TMP_MAX_ETH)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
str = ub_env_get(env);
|
|
|
|
|
|
|
|
if (n != 0) {
|
|
|
|
/*
|
|
|
|
* Find the lenght of the interface id by
|
|
|
|
* taking in to account the first 3 and
|
|
|
|
* last 4 characters.
|
|
|
|
*/
|
|
|
|
i = strlen(env) - 7;
|
|
|
|
strncpy(ethstr + 8, env + 3, i);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Modify blob */
|
|
|
|
fdt_fixup_ethernet(str, ethstr, len);
|
|
|
|
|
|
|
|
/* Clear ethernet..XXXX.. string */
|
|
|
|
bzero(ethstr + 8, len - 8);
|
|
|
|
|
|
|
|
if (n + 1 > eth_no)
|
|
|
|
eth_no = n + 1;
|
|
|
|
} else if (strcmp(env, "consoledev") == 0) {
|
|
|
|
str = ub_env_get(env);
|
|
|
|
fdt_fixup_stdout(str);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Modify cpu(s) and bus clock frequenties in /cpus node [Hz] */
|
|
|
|
fdt_fixup_cpubusfreqs(si->clk_cpu, si->clk_bus);
|
|
|
|
|
2015-03-17 21:15:24 +00:00
|
|
|
/* Extract the DRAM regions into fdt_mem_region format. */
|
|
|
|
for (i = 0, n = 0; i < si->mr_no && n < nitems(regions); i++) {
|
|
|
|
if (si->mr[i].flags == MR_ATTR_DRAM) {
|
|
|
|
regions[n].start = si->mr[i].start;
|
|
|
|
regions[n].size = si->mr[i].size;
|
|
|
|
n++;
|
2014-11-01 17:12:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Fixup memory regions */
|
2015-03-17 21:15:24 +00:00
|
|
|
fdt_fixup_memory(regions, n);
|
2014-11-01 17:12:44 +00:00
|
|
|
}
|