mirror of
https://github.com/fail0verflow/switch-coreboot.git
synced 2025-05-04 01:39:18 -04:00
01d7545b50
Fix up dts to set up ops struct member. Fix dts for qemu mainboard. We are getting past stage2 now, it is time for elfboot. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@88 f3766cd6-281f-0410-b1cd-43a5c92072e9
1516 lines
34 KiB
C
1516 lines
34 KiB
C
/*
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* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "dtc.h"
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#include "flat_dt.h"
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#define FTF_FULLPATH 0x1
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#define FTF_VARALIGN 0x2
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#define FTF_NAMEPROPS 0x4
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#define FTF_BOOTCPUID 0x8
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#define FTF_STRTABSIZE 0x10
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static struct version_info {
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int version;
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int last_comp_version;
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int hdr_size;
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int flags;
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} version_table[] = {
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{1, 1, BPH_V1_SIZE,
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FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS},
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{2, 1, BPH_V2_SIZE,
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FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS|FTF_BOOTCPUID},
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{3, 1, BPH_V3_SIZE,
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FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS|FTF_BOOTCPUID|FTF_STRTABSIZE},
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{0x10, 0x10, BPH_V3_SIZE,
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FTF_BOOTCPUID|FTF_STRTABSIZE},
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};
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struct emitter {
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void (*cell)(void *, cell_t);
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void (*string)(void *, char *, int);
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void (*align)(void *, int);
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void (*data)(void *, struct property *);
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void (*beginnode)(void *, char *);
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void (*endnode)(void *, char *);
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void (*property)(void *, char *);
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void(*special)(FILE *f, struct node *);
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};
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char *
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clean(char *name, int instantiate){
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char *cleanname = strdup(name), *cp;
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for(cp = cleanname; *cp; cp++)
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switch(*cp) {
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case '#':
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*cp = 'H';
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break;
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case '@':
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/* if we are declaring it, this is an instance. If not, this is a struct type */
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if (instantiate)
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*cp = '_';
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else
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*cp = 0;
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break;
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case '-':
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case ',':
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*cp = '_';
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break;
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}
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return cleanname;
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}
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char *
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topath(struct property *p){
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struct data d = p->val;
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int i = 0;
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char *pathname, *cp;
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pathname = malloc(d.len + 1);
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for(cp = pathname, i = 0; i < d.len; i++, cp++) {
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switch(d.val[i]){
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case '@':
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*cp = 0;
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break;
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case ',':
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*cp = '/';
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break;
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default:
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*cp = d.val[i];
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break;
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}
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}
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*cp++ = 0;
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return pathname;
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}
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static void bin_emit_cell(void *e, cell_t val)
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{
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struct data *dtbuf = e;
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*dtbuf = data_append_cell(*dtbuf, val);
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}
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static void bin_emit_string(void *e, char *str, int len)
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{
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struct data *dtbuf = e;
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if (len == 0)
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len = strlen(str);
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*dtbuf = data_append_data(*dtbuf, str, len);
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*dtbuf = data_append_byte(*dtbuf, '\0');
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}
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static void bin_emit_align(void *e, int a)
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{
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struct data *dtbuf = e;
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*dtbuf = data_append_align(*dtbuf, a);
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}
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static void bin_emit_data(void *e, struct property *p)
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{
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struct data d = p->val;
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struct data *dtbuf = e;
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*dtbuf = data_append_data(*dtbuf, d.val, d.len);
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}
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static void bin_emit_beginnode(void *e, char *label)
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{
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bin_emit_cell(e, OF_DT_BEGIN_NODE);
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}
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static void bin_emit_endnode(void *e, char *label)
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{
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bin_emit_cell(e, OF_DT_END_NODE);
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}
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static void bin_emit_property(void *e, char *label)
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{
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bin_emit_cell(e, OF_DT_PROP);
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}
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static struct emitter bin_emitter = {
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.cell = bin_emit_cell,
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.string = bin_emit_string,
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.align = bin_emit_align,
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.data = bin_emit_data,
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.beginnode = bin_emit_beginnode,
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.endnode = bin_emit_endnode,
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.property = bin_emit_property,
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};
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static void emit_label(FILE *f, char *prefix, char *label)
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{
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fprintf(f, "\t.globl\t%s_%s\n", prefix, label);
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fprintf(f, "%s_%s:\n", prefix, label);
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fprintf(f, "_%s_%s:\n", prefix, label);
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}
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static void asm_emit_cell(void *e, cell_t val)
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{
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FILE *f = e;
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fprintf(f, "\t.long\t0x%x\n", val);
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}
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static void asm_emit_string(void *e, char *str, int len)
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{
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FILE *f = e;
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char c;
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if (len != 0) {
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/* XXX: ewww */
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c = str[len];
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str[len] = '\0';
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}
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fprintf(f, "\t.string\t\"%s\"\n", str);
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if (len != 0) {
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str[len] = c;
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}
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}
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static void asm_emit_align(void *e, int a)
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{
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FILE *f = e;
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fprintf(f, "\t.balign\t%d\n", a);
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}
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static void asm_emit_data(void *e, struct property *p)
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{
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struct data d = p->val;
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FILE *f = e;
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int off = 0;
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while ((d.len - off) >= sizeof(u32)) {
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fprintf(f, "\t.long\t0x%x\n",
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be32_to_cpu(*((u32 *)(d.val+off))));
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off += sizeof(u32);
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}
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if ((d.len - off) >= sizeof(u16)) {
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fprintf(f, "\t.short\t0x%hx\n",
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be16_to_cpu(*((u16 *)(d.val+off))));
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off += sizeof(u16);
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}
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if ((d.len - off) >= 1) {
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fprintf(f, "\t.byte\t0x%hhx\n", d.val[off]);
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off += 1;
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}
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assert(off == d.len);
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}
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static void asm_emit_beginnode(void *e, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "\t.globl\t%s\n", label);
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fprintf(f, "%s:\n", label);
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}
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fprintf(f, "\t.long\tOF_DT_BEGIN_NODE\n");
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}
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static void asm_emit_endnode(void *e, char *label)
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{
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FILE *f = e;
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fprintf(f, "\t.long\tOF_DT_END_NODE\n");
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if (label) {
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fprintf(f, "\t.globl\t%s_end\n", label);
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fprintf(f, "%s_end:\n", label);
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}
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}
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static void asm_emit_property(void *e, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "\t.globl\t%s\n", label);
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fprintf(f, "%s:\n", label);
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}
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fprintf(f, "\t.long\tOF_DT_PROP\n");
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}
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static struct emitter asm_emitter = {
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.cell = asm_emit_cell,
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.string = asm_emit_string,
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.align = asm_emit_align,
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.data = asm_emit_data,
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.beginnode = asm_emit_beginnode,
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.endnode = asm_emit_endnode,
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.property = asm_emit_property,
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};
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int unique = 0;
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static void C_emit_cell(void *e, cell_t val)
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{
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FILE *f = e;
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fprintf(f, "\tu32\tc%d = 0x%x;\n", unique++, val);
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}
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static void C_emit_string(void *e, char *str, int len)
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{
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FILE *f = e;
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char c;
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if (len != 0) {
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/* XXX: ewww */
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c = str[len];
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str[len] = '\0';
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}
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fprintf(f, "\tunsigned char *c%d = \t\"%s\";\n", unique++, str);
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if (len != 0) {
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str[len] = c;
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}
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}
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static void C_emit_align(void *e, int a)
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{
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FILE *f = e;
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fprintf(f, "\tALIGN(x)\t%d\n", a);
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}
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static void C_emit_data(void *e, struct property *p)
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{
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struct data d = p->val;
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FILE *f = e;
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int off = 0;
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while ((d.len - off) >= sizeof(u32)) {
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fprintf(f, "\tu32 d%d = \t0x%x;\n",unique++,
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be32_to_cpu(*((u32 *)(d.val+off))));
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off += sizeof(u32);
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}
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if ((d.len - off) >= sizeof(u16)) {
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fprintf(f, "\tu16 d%d = \t0x%hx;\n", unique++,
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be16_to_cpu(*((u16 *)(d.val+off))));
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off += sizeof(u16);
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}
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if ((d.len - off) >= 1) {
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fprintf(f, "\tu8 d%d = \t0x%hhx;\n", unique++, d.val[off]);
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off += 1;
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}
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assert(off == d.len);
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}
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static void C_emit_beginnode(void *e, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "struct\t%s {\n", label);
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}
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fprintf(f, "\tu32\tn%d = OF_DT_BEGIN_NODE;\n", unique++);
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}
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static void C_emit_endnode(void *e, char *label)
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{
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FILE *f = e;
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fprintf(f, "\tu32\ten%d = OF_DT_END_NODE;\n", unique++);
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if (label) {
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fprintf(f, "\t\t%s;\n", label);
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}
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}
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static void C_emit_struct_start(void *e, char *prefix, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "struct\t%s {\n", label);
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}
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}
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static void C_emit_struct_end(void *e, char *prefix, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "}; /*%s*/\n", label);
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}
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}
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static void C_emit_property(void *e, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "\tstruct p%d\t%s{\n", unique++, label);
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}
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fprintf(f, "\tu32 p%d = \tOF_DT_PROP;\n", unique++);
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}
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static struct emitter C_emitter = {
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.cell = C_emit_cell,
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.string = C_emit_string,
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.align = C_emit_align,
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.data = C_emit_data,
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.beginnode = C_emit_beginnode,
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.endnode = C_emit_endnode,
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.property = C_emit_property,
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};
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/* linuxbios static.c */
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static void linuxbios_emit_cell(void *e, cell_t val)
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{
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FILE *f = e;
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fprintf(f, "\tu32\tc%d = 0x%x;\n", unique++, val);
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}
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static void linuxbios_emit_string(void *e, char *str, int len)
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{
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FILE *f = e;
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char c;
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if (len != 0) {
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/* XXX: ewww */
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c = str[len];
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str[len] = '\0';
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}
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fprintf(f, "\tunsigned char *c%d = \t\"%s\";\n", unique++, str);
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if (len != 0) {
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str[len] = c;
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}
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}
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static void linuxbios_emit_align(void *e, int a)
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{
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FILE *f = e;
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fprintf(f, "\tALIGN(x)\t%d\n", a);
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}
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static void linuxbios_emit_data(void *e, struct property *p)
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{
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struct data d = p->val;
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FILE *f = e;
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int i;
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char *cleanname;
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/* nothing to do? */
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if (d.len == 0)
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return;
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cleanname = clean(p->name, 1);
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fprintf(f, "\t.%s = {", cleanname);
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free(cleanname);
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for(i = 0; i < d.len; i++)
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fprintf(f, "0x%02x,", d.val[i]);
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fprintf(f, "},\n");
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}
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static void linuxbios_emit_beginnode(void *e, char *label)
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{
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FILE *f = e;
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if (label) {
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fprintf(f, "struct\t%s {\n", label);
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}
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}
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static void linuxbios_emit_endnode(void *e, char *label)
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{
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FILE *f = e;
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|
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if (label) {
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fprintf(f, "}; /*%s*/\n", label);
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}
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}
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|
#ifdef LINUXBIOS_OUTPUT
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static void linuxbios_emit_struct_start(void *e, char *prefix, char *label)
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|
{
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FILE *f = e;
|
|
|
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if (label) {
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fprintf(f, "struct\t%s {\n", label);
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}
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}
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|
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static void linuxbios_emit_struct_end(void *e, char *prefix, char *label)
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|
{
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FILE *f = e;
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|
|
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if (label) {
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fprintf(f, "}; /*%s*/\n", label);
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}
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|
}
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#endif
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|
|
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static void linuxbios_emit_property(void *e, char *label)
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|
{
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FILE *f = e;
|
|
|
|
if (label) {
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fprintf(f, "\tstruct p%d\t%s{\n", unique++, label);
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|
}
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fprintf(f, "\tu32 p%d = \tOF_DT_PROP;\n", unique++);
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|
}
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|
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|
static void linuxbios_emit_special(void *e, struct node *tree)
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|
{
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|
FILE *f = e;
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struct property *prop;
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int ops_set = 0;
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int is_root = 0;
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|
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fprintf(f, "struct device dev_%s = {\n", tree->label);
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/* special case -- the root has a distinguished path */
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|
if (! strncmp(tree->label, "root", 4)){
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|
is_root = 1;
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|
fprintf(f, "\t.path = { .type = DEVICE_PATH_ROOT },\n");
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|
}
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|
|
|
for_each_property(tree, prop) {
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|
if (streq(prop->name, "pcidomain")){
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|
fprintf(f, "\t.path = {.type=DEVICE_PATH_PCI_DOMAIN,.u={.pci_domain={ .domain = %s }}},\n",
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|
prop->val.val);
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|
}
|
|
if (streq(prop->name, "pcipath")){
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|
fprintf(f, "\t.path = {.type=DEVICE_PATH_PCI,.u={.pci={ .devfn = PCI_DEVFN(%s)}}},\n",
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|
prop->val.val);
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|
}
|
|
/* to do: check the value, maybe. Kinda pointless though. */
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|
if (streq(prop->name, "on_mainboard")){
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|
fprintf(f, "\t.on_mainboard = 1,\n");
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|
}
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|
if (streq(prop->name, "enabled")){
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|
fprintf(f, "\t.enabled = 1,\n");
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|
}
|
|
|
|
if (streq(prop->name, "config")){
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|
fprintf(f, "\t.chip_ops = &%s_ops,\n", clean(prop->val.val, 0));
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|
fprintf(f, "\t.chip_info = &%s,\n", clean(tree->label, 1));
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|
}
|
|
if (streq(prop->name, "ops")){
|
|
fprintf(f, "\t.ops = &%s,\n", clean(prop->val.val, 0));
|
|
ops_set = 1;
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|
}
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|
|
}
|
|
if (tree->next_sibling)
|
|
fprintf(f, "\t.sibling = dev_%s;\n", tree->next_sibling->label);
|
|
/* now do we do next? */
|
|
/* this will need to do a bus for every child. And, below, we're going to need to find which bus we're on*/
|
|
/* for now, let's keep it to the minimum that will work, while we see if we like this. */
|
|
if (tree->children){
|
|
fprintf(f,"\t.links = 1,\n");
|
|
fprintf(f,"\t.link = {\n");
|
|
fprintf(f,"\t\t[0] = {\n");
|
|
fprintf(f,"\t\t\t.dev = &dev_%s,\n", tree->label);
|
|
fprintf(f,"\t\t\t.link = 0,\n");
|
|
fprintf(f,"\t\t\t.children = &dev_%s\n", tree->children->label);
|
|
fprintf(f,"\t\t},\n");
|
|
fprintf(f,"\t},\n");
|
|
}
|
|
/* fill in the 'bus I am on' entry */
|
|
if (tree->parent)
|
|
fprintf(f, "\t.bus = &dev_%s.link[0],\n", tree->parent->label);
|
|
else
|
|
fprintf(f, "\t.bus = &dev_%s.link[0],\n", tree->label);
|
|
|
|
if (tree->next)
|
|
fprintf(f, "\t.next = &dev_%s,\n", tree->next->label);
|
|
|
|
if ((! ops_set) && is_root)
|
|
fprintf(f, "\t.ops = &default_dev_ops_root,\n");
|
|
|
|
fprintf(f, "};\n");
|
|
}
|
|
|
|
static struct emitter linuxbios_emitter = {
|
|
.cell = linuxbios_emit_cell,
|
|
.string = linuxbios_emit_string,
|
|
.align = linuxbios_emit_align,
|
|
.data = linuxbios_emit_data,
|
|
.beginnode = linuxbios_emit_beginnode,
|
|
.endnode = linuxbios_emit_endnode,
|
|
.property = linuxbios_emit_property,
|
|
.special = linuxbios_emit_special,
|
|
};
|
|
|
|
|
|
static int stringtable_insert(struct data *d, char *str)
|
|
{
|
|
int i;
|
|
|
|
/* FIXME: do this more efficiently? */
|
|
|
|
for (i = 0; i < d->len; i++) {
|
|
if (streq(str, d->val + i))
|
|
return i;
|
|
}
|
|
|
|
*d = data_append_data(*d, str, strlen(str)+1);
|
|
return i;
|
|
}
|
|
|
|
/* we're going to overload the name node for testing. This may be the wrong thing long-term */
|
|
static void flatten_tree_emit_includes(struct node *tree, struct emitter *emit,
|
|
void *etarget, struct data *strbuf,
|
|
struct version_info *vi)
|
|
{
|
|
char *pathname;
|
|
struct property *prop;
|
|
struct node *child;
|
|
FILE *f = etarget;
|
|
|
|
for_each_property(tree, prop) {
|
|
if (streq(prop->name, "config")) {
|
|
pathname = topath(prop);
|
|
fprintf(f, "#include <%s/config.h>\n", pathname);
|
|
free(pathname);
|
|
}
|
|
}
|
|
|
|
for_each_child(tree, child) {
|
|
flatten_tree_emit_includes(child, emit, etarget, strbuf, vi);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
static void flatten_tree_emit_structdecls(struct node *tree, struct emitter *emit,
|
|
void *etarget, struct data *strbuf,
|
|
struct version_info *vi)
|
|
{
|
|
char *treename;
|
|
|
|
struct property *prop;
|
|
struct node *child;
|
|
int seen_name_prop = 0;
|
|
FILE *f = etarget;
|
|
|
|
treename = clean(tree->name, 0);
|
|
emit->beginnode(etarget, treename);
|
|
|
|
|
|
#if 0
|
|
if (vi->flags & FTF_FULLPATH)
|
|
emit->string(etarget, tree->fullpath, 0);
|
|
else
|
|
emit->string(etarget, tree->name, 0);
|
|
#endif
|
|
|
|
for_each_property(tree, prop) {
|
|
char *cleanname;
|
|
if (streq(prop->name, "name"))
|
|
seen_name_prop = 1;
|
|
cleanname = clean(prop->name, 0);
|
|
fprintf(f, "\tu8 %s[%d];\n", cleanname, prop->val.len);
|
|
free(cleanname);
|
|
|
|
}
|
|
#if 0
|
|
if ((vi->flags & FTF_NAMEPROPS) && !seen_name_prop) {
|
|
fprintf(f, "\tu8 %s[%d];\n", prop->name, prop->val.len);
|
|
}
|
|
#endif
|
|
emit->endnode(etarget, treename);
|
|
free(treename);
|
|
|
|
for_each_child(tree, child) {
|
|
flatten_tree_emit_structdecls(child, emit, etarget, strbuf, vi);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
int structunique = 0;
|
|
|
|
static void flatten_tree_emit_structinits(struct node *tree, struct emitter *emit,
|
|
void *etarget, struct data *strbuf,
|
|
struct version_info *vi)
|
|
{
|
|
char *treename;
|
|
|
|
struct property *prop;
|
|
struct node *child;
|
|
int seen_name_prop = 0;
|
|
FILE *f = etarget;
|
|
/*
|
|
treename = clean(tree->name, 0);
|
|
fprintf(f, "struct %s %s = {\n", treename, tree->label);
|
|
free(treename);
|
|
|
|
*/
|
|
#if 0
|
|
if (vi->flags & FTF_FULLPATH)
|
|
emit->string(etarget, tree->fullpath, 0);
|
|
else
|
|
emit->string(etarget, tree->name, 0);
|
|
#endif
|
|
/*
|
|
for_each_property(tree, prop) {
|
|
if (streq(prop->name, "name"))
|
|
seen_name_prop = 1;
|
|
emit->data(etarget, prop);
|
|
}
|
|
*/
|
|
#if 0
|
|
if ((vi->flags & FTF_NAMEPROPS) && !seen_name_prop) {
|
|
fprintf(f, "\tu8 %s[%d]\n", prop->name, prop->data.len);
|
|
}
|
|
#endif
|
|
/*
|
|
emit->endnode(etarget, tree->label);
|
|
*/
|
|
|
|
/* now emit the device for this node, with sibling and child pointers etc. */
|
|
emit->special(f, tree);
|
|
|
|
for_each_child(tree, child) {
|
|
flatten_tree_emit_structinits(child, emit, etarget, strbuf, vi);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
static void flatten_tree(struct node *tree, struct emitter *emit,
|
|
void *etarget, struct data *strbuf,
|
|
struct version_info *vi)
|
|
{
|
|
struct property *prop;
|
|
struct node *child;
|
|
int seen_name_prop = 0;
|
|
|
|
emit->beginnode(etarget, tree->label);
|
|
|
|
if (vi->flags & FTF_FULLPATH)
|
|
emit->string(etarget, tree->fullpath, 0);
|
|
else
|
|
emit->string(etarget, tree->name, 0);
|
|
|
|
emit->align(etarget, sizeof(cell_t));
|
|
|
|
for_each_property(tree, prop) {
|
|
int nameoff;
|
|
|
|
if (streq(prop->name, "name"))
|
|
seen_name_prop = 1;
|
|
|
|
nameoff = stringtable_insert(strbuf, prop->name);
|
|
|
|
emit->property(etarget, prop->label);
|
|
emit->cell(etarget, prop->val.len);
|
|
emit->cell(etarget, nameoff);
|
|
|
|
if ((vi->flags & FTF_VARALIGN) && (prop->val.len >= 8))
|
|
emit->align(etarget, 8);
|
|
|
|
emit->data(etarget, prop);
|
|
emit->align(etarget, sizeof(cell_t));
|
|
}
|
|
|
|
if ((vi->flags & FTF_NAMEPROPS) && !seen_name_prop) {
|
|
emit->property(etarget, NULL);
|
|
emit->cell(etarget, tree->basenamelen+1);
|
|
emit->cell(etarget, stringtable_insert(strbuf, "name"));
|
|
|
|
if ((vi->flags & FTF_VARALIGN) && ((tree->basenamelen+1) >= 8))
|
|
emit->align(etarget, 8);
|
|
|
|
emit->string(etarget, tree->name, tree->basenamelen);
|
|
emit->align(etarget, sizeof(cell_t));
|
|
}
|
|
|
|
for_each_child(tree, child) {
|
|
flatten_tree(child, emit, etarget, strbuf, vi);
|
|
}
|
|
|
|
emit->endnode(etarget, tree->label);
|
|
}
|
|
|
|
static struct data flatten_reserve_list(struct reserve_info *reservelist,
|
|
struct version_info *vi)
|
|
{
|
|
struct reserve_info *re;
|
|
struct data d = empty_data;
|
|
|
|
for (re = reservelist; re; re = re->next) {
|
|
d = data_append_re(d, &re->re);
|
|
}
|
|
|
|
return d;
|
|
}
|
|
static void make_bph(struct boot_param_header *bph,
|
|
struct version_info *vi,
|
|
int reservesize, int dtsize, int strsize,
|
|
int boot_cpuid_phys)
|
|
{
|
|
int reserve_off;
|
|
|
|
reservesize += sizeof(struct reserve_entry);
|
|
|
|
memset(bph, 0xff, sizeof(*bph));
|
|
|
|
bph->magic = cpu_to_be32(OF_DT_HEADER);
|
|
bph->version = cpu_to_be32(vi->version);
|
|
bph->last_comp_version = cpu_to_be32(vi->last_comp_version);
|
|
|
|
/* Reserve map should be doubleword aligned */
|
|
reserve_off = ALIGN(vi->hdr_size, 8);
|
|
|
|
bph->off_mem_rsvmap = cpu_to_be32(reserve_off);
|
|
bph->off_dt_struct = cpu_to_be32(reserve_off + reservesize);
|
|
bph->off_dt_strings = cpu_to_be32(reserve_off + reservesize
|
|
+ dtsize);
|
|
bph->totalsize = cpu_to_be32(reserve_off + reservesize
|
|
+ dtsize + strsize);
|
|
|
|
if (vi->flags & FTF_BOOTCPUID)
|
|
bph->boot_cpuid_phys = cpu_to_be32(boot_cpuid_phys);
|
|
if (vi->flags & FTF_STRTABSIZE)
|
|
bph->size_dt_strings = cpu_to_be32(strsize);
|
|
}
|
|
|
|
void dt_to_blob(FILE *f, struct boot_info *bi, int version,
|
|
int boot_cpuid_phys)
|
|
{
|
|
struct version_info *vi = NULL;
|
|
int i;
|
|
struct data dtbuf = empty_data;
|
|
struct data strbuf = empty_data;
|
|
struct data reservebuf;
|
|
struct boot_param_header bph;
|
|
struct reserve_entry termre = {.address = 0, .size = 0};
|
|
|
|
for (i = 0; i < ARRAY_SIZE(version_table); i++) {
|
|
if (version_table[i].version == version)
|
|
vi = &version_table[i];
|
|
}
|
|
if (!vi)
|
|
die("Unknown device tree blob version %d\n", version);
|
|
|
|
dtbuf = empty_data;
|
|
strbuf = empty_data;
|
|
|
|
flatten_tree(bi->dt, &bin_emitter, &dtbuf, &strbuf, vi);
|
|
bin_emit_cell(&dtbuf, OF_DT_END);
|
|
|
|
reservebuf = flatten_reserve_list(bi->reservelist, vi);
|
|
|
|
/* Make header */
|
|
make_bph(&bph, vi, reservebuf.len, dtbuf.len, strbuf.len,
|
|
boot_cpuid_phys);
|
|
|
|
fwrite(&bph, vi->hdr_size, 1, f);
|
|
|
|
/* Align the reserve map to an 8 byte boundary */
|
|
for (i = vi->hdr_size; i < be32_to_cpu(bph.off_mem_rsvmap); i++)
|
|
fputc(0, f);
|
|
|
|
/*
|
|
* Reserve map entries.
|
|
* Each entry is an (address, size) pair of u64 values.
|
|
* Always supply a zero-sized temination entry.
|
|
*/
|
|
fwrite(reservebuf.val, reservebuf.len, 1, f);
|
|
fwrite(&termre, sizeof(termre), 1, f);
|
|
|
|
fwrite(dtbuf.val, dtbuf.len, 1, f);
|
|
fwrite(strbuf.val, strbuf.len, 1, f);
|
|
|
|
if (ferror(f))
|
|
die("Error writing device tree blob: %s\n", strerror(errno));
|
|
|
|
data_free(dtbuf);
|
|
data_free(strbuf);
|
|
}
|
|
|
|
static void dump_stringtable_asm(FILE *f, struct data strbuf)
|
|
{
|
|
char *p;
|
|
int len;
|
|
|
|
p = strbuf.val;
|
|
|
|
while (p < (strbuf.val + strbuf.len)) {
|
|
len = strlen(p);
|
|
fprintf(f, "\t.string \"%s\"\n", p);
|
|
p += len+1;
|
|
}
|
|
}
|
|
|
|
void dt_to_asm(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys)
|
|
{
|
|
struct version_info *vi = NULL;
|
|
int i;
|
|
struct data strbuf = empty_data;
|
|
struct reserve_info *re;
|
|
char *symprefix = "dt";
|
|
|
|
for (i = 0; i < ARRAY_SIZE(version_table); i++) {
|
|
if (version_table[i].version == version)
|
|
vi = &version_table[i];
|
|
}
|
|
if (!vi)
|
|
die("Unknown device tree blob version %d\n", version);
|
|
|
|
fprintf(f, "/* autogenerated by dtc, do not edit */\n\n");
|
|
fprintf(f, "#define OF_DT_HEADER 0x%x\n", OF_DT_HEADER);
|
|
fprintf(f, "#define OF_DT_BEGIN_NODE 0x%x\n", OF_DT_BEGIN_NODE);
|
|
fprintf(f, "#define OF_DT_END_NODE 0x%x\n", OF_DT_END_NODE);
|
|
fprintf(f, "#define OF_DT_PROP 0x%x\n", OF_DT_PROP);
|
|
fprintf(f, "#define OF_DT_END 0x%x\n", OF_DT_END);
|
|
fprintf(f, "\n");
|
|
|
|
emit_label(f, symprefix, "blob_start");
|
|
emit_label(f, symprefix, "header");
|
|
fprintf(f, "\t.long\tOF_DT_HEADER /* magic */\n");
|
|
fprintf(f, "\t.long\t_%s_blob_end - _%s_blob_start /* totalsize */\n",
|
|
symprefix, symprefix);
|
|
fprintf(f, "\t.long\t_%s_struct_start - _%s_blob_start /* off_dt_struct */\n",
|
|
symprefix, symprefix);
|
|
fprintf(f, "\t.long\t_%s_strings_start - _%s_blob_start /* off_dt_strings */\n",
|
|
symprefix, symprefix);
|
|
fprintf(f, "\t.long\t_%s_reserve_map - _%s_blob_start /* off_dt_strings */\n",
|
|
symprefix, symprefix);
|
|
fprintf(f, "\t.long\t%d /* version */\n", vi->version);
|
|
fprintf(f, "\t.long\t%d /* last_comp_version */\n",
|
|
vi->last_comp_version);
|
|
|
|
if (vi->flags & FTF_BOOTCPUID)
|
|
fprintf(f, "\t.long\t%i\t/*boot_cpuid_phys*/\n",
|
|
boot_cpuid_phys);
|
|
|
|
if (vi->flags & FTF_STRTABSIZE)
|
|
fprintf(f, "\t.long\t_%s_strings_end - _%s_strings_start\t/* size_dt_strings */\n",
|
|
symprefix, symprefix);
|
|
|
|
/*
|
|
* Reserve map entries.
|
|
* Align the reserve map to a doubleword boundary.
|
|
* Each entry is an (address, size) pair of u64 values.
|
|
* Always supply a zero-sized temination entry.
|
|
*/
|
|
asm_emit_align(f, 8);
|
|
emit_label(f, symprefix, "reserve_map");
|
|
|
|
fprintf(f, "/* Memory reserve map from source file */\n");
|
|
|
|
/*
|
|
* Use .long on high and low halfs of u64s to avoid .quad
|
|
* as it appears .quad isn't available in some assemblers.
|
|
*/
|
|
for (re = bi->reservelist; re; re = re->next) {
|
|
fprintf(f, "\t.long\t0x%08x\n\t.long\t0x%08x\n",
|
|
(unsigned int)(re->re.address >> 32),
|
|
(unsigned int)(re->re.address & 0xffffffff));
|
|
fprintf(f, "\t.long\t0x%08x\n\t.long\t0x%08x\n",
|
|
(unsigned int)(re->re.size >> 32),
|
|
(unsigned int)(re->re.size & 0xffffffff));
|
|
}
|
|
|
|
fprintf(f, "\t.long\t0, 0\n\t.long\t0, 0\n");
|
|
|
|
emit_label(f, symprefix, "struct_start");
|
|
flatten_tree(bi->dt, &asm_emitter, f, &strbuf, vi);
|
|
fprintf(f, "\t.long\tOF_DT_END\n");
|
|
emit_label(f, symprefix, "struct_end");
|
|
|
|
emit_label(f, symprefix, "strings_start");
|
|
dump_stringtable_asm(f, strbuf);
|
|
emit_label(f, symprefix, "strings_end");
|
|
|
|
emit_label(f, symprefix, "blob_end");
|
|
|
|
data_free(strbuf);
|
|
}
|
|
|
|
static void dump_stringtable_C(FILE *f, struct data strbuf)
|
|
{
|
|
char *p;
|
|
int len;
|
|
|
|
p = strbuf.val;
|
|
|
|
fprintf(f, "\tchar *stringtable[] = {\n");
|
|
while (p < (strbuf.val + strbuf.len)) {
|
|
len = strlen(p);
|
|
fprintf(f, "\t\"%s\"\n", p);
|
|
p += len+1;
|
|
}
|
|
fprintf(f, "\t};\n");
|
|
|
|
}
|
|
|
|
|
|
void dt_to_C(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys)
|
|
{
|
|
struct version_info *vi = NULL;
|
|
int i;
|
|
struct data strbuf = empty_data;
|
|
struct reserve_info *re;
|
|
char *symprefix = "dt";
|
|
|
|
for (i = 0; i < ARRAY_SIZE(version_table); i++) {
|
|
if (version_table[i].version == version)
|
|
vi = &version_table[i];
|
|
}
|
|
if (!vi)
|
|
die("Unknown device tree blob version %d\n", version);
|
|
|
|
fprintf(f, "/* autogenerated by dtc, do not edit */\n\n");
|
|
fprintf(f, "#define OF_DT_HEADER 0x%x\n", OF_DT_HEADER);
|
|
fprintf(f, "#define OF_DT_BEGIN_NODE 0x%x\n", OF_DT_BEGIN_NODE);
|
|
fprintf(f, "#define OF_DT_END_NODE 0x%x\n", OF_DT_END_NODE);
|
|
fprintf(f, "#define OF_DT_PROP 0x%x\n", OF_DT_PROP);
|
|
fprintf(f, "#define OF_DT_END 0x%x\n", OF_DT_END);
|
|
fprintf(f, "\n");
|
|
|
|
C_emit_struct_start(f, symprefix, "blob");
|
|
fprintf(f, "\tu32\tmagic = OF_DT_HEADER;\n");
|
|
fprintf(f, "\tu32\ttotalsize = sizeof(struct blob);\n");
|
|
fprintf(f, "\tu32\toffdt = offsetof(struct blob, dt);\n");
|
|
fprintf(f, "\tu32\toffstrings = offsetof(struct blob, strings);\n");
|
|
fprintf(f, "\tu32\toffreserve = offsetof(struct blob, reserve);\n");
|
|
fprintf(f, "\tu32\tversion = %d;\n", vi->version);
|
|
fprintf(f, "\tu32\tlast_comp_version = %d;\n",
|
|
vi->last_comp_version);
|
|
|
|
if (vi->flags & FTF_BOOTCPUID)
|
|
fprintf(f, "\tu32\tboot_cpuid_phys = 0x%x;\n",
|
|
boot_cpuid_phys);
|
|
|
|
if (vi->flags & FTF_STRTABSIZE)
|
|
fprintf(f, "\tu32\tsize_%s_strings_end = sizeof(dt.strings);\n",
|
|
symprefix);
|
|
/*
|
|
* Reserve map entries.
|
|
* Align the reserve map to a doubleword boundary.
|
|
* Each entry is an (address, size) pair of u64 values.
|
|
* Always supply a zero-sized temination entry.
|
|
*/
|
|
C_emit_align(f, 8);
|
|
|
|
fprintf(f, "\t/* Memory reserve map from source file */\n");
|
|
|
|
/*
|
|
* Use .long on high and low halfs of u64s to avoid .quad
|
|
* as it appears .quad isn't available in some assemblers.
|
|
*/
|
|
fprintf(f, "\tu64 reservemap[] = {\n");
|
|
for (re = bi->reservelist; re; re = re->next) {
|
|
fprintf(f, "\tu64\t0x%qx\n", re->re.address);
|
|
fprintf(f, "\tu64\t0x%qx\n", re->re.size);
|
|
}
|
|
|
|
|
|
fprintf(f, "\t0, 0\n");
|
|
fprintf(f, "\t};\n");
|
|
|
|
C_emit_struct_start(f, symprefix, "dt_blob");
|
|
flatten_tree(bi->dt, &C_emitter, f, &strbuf, vi);
|
|
fprintf(f, "\tu32\tend = OF_DT_END;\n");
|
|
C_emit_struct_end(f, symprefix, "dt_blob");
|
|
|
|
dump_stringtable_C(f, strbuf);
|
|
|
|
C_emit_struct_end(f, symprefix, "blob");
|
|
|
|
data_free(strbuf);
|
|
}
|
|
|
|
/* the label is not really used. So go ahead and make clean names for all labels */
|
|
|
|
void
|
|
labeltree(struct node *tree)
|
|
{
|
|
struct node *child;
|
|
|
|
tree->label = clean(tree->name, 1);
|
|
|
|
if (tree->next_sibling)
|
|
labeltree(tree->next_sibling);
|
|
|
|
for_each_child(tree, child) {
|
|
labeltree(child);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void dt_to_linuxbios(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys)
|
|
{
|
|
struct version_info *vi = NULL;
|
|
int i;
|
|
struct data strbuf = empty_data;
|
|
char *symprefix = "dt";
|
|
extern char *code;
|
|
struct node *next;
|
|
extern struct node *first_node;
|
|
|
|
labeltree(bi->dt);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(version_table); i++) {
|
|
if (version_table[i].version == version)
|
|
vi = &version_table[i];
|
|
}
|
|
if (!vi)
|
|
die("Unknown device tree blob version %d\n", version);
|
|
|
|
/* the root is special -- the parser gives it no name. We fix that here.
|
|
* fix in parser?
|
|
*/
|
|
bi->dt->name = bi->dt->label = "root";
|
|
/* steps: emit all structs. Then emit the initializers, with the pointers to other structs etc. */
|
|
|
|
/* emit any includes that we need -- TODO: ONLY ONCE PER TYPE*/
|
|
fprintf(f, "#include <device/device.h>\n#include <device/pci.h>\n");
|
|
flatten_tree_emit_includes(bi->dt, &linuxbios_emitter, f, &strbuf, vi);
|
|
/* forward declarations */
|
|
for(next = first_node; next; next = next->next)
|
|
fprintf(f, "struct device dev_%s;\n", next->label);
|
|
|
|
/* emit the code, if any */
|
|
if (code)
|
|
fprintf(f, "%s\n", code);
|
|
|
|
|
|
// flatten_tree_emit_structdecls(bi->dt, &linuxbios_emitter, f, &strbuf, vi);
|
|
flatten_tree_emit_structinits(bi->dt, &linuxbios_emitter, f, &strbuf, vi);
|
|
data_free(strbuf);
|
|
/* */
|
|
|
|
}
|
|
|
|
|
|
struct inbuf {
|
|
char *base, *limit, *ptr;
|
|
};
|
|
|
|
static void inbuf_init(struct inbuf *inb, void *base, void *limit)
|
|
{
|
|
inb->base = base;
|
|
inb->limit = limit;
|
|
inb->ptr = inb->base;
|
|
}
|
|
|
|
static void flat_read_chunk(struct inbuf *inb, void *p, int len)
|
|
{
|
|
if ((inb->ptr + len) > inb->limit)
|
|
die("Premature end of data parsing flat device tree\n");
|
|
|
|
memcpy(p, inb->ptr, len);
|
|
|
|
inb->ptr += len;
|
|
}
|
|
|
|
static u32 flat_read_word(struct inbuf *inb)
|
|
{
|
|
u32 val;
|
|
|
|
assert(((inb->ptr - inb->base) % sizeof(val)) == 0);
|
|
|
|
flat_read_chunk(inb, &val, sizeof(val));
|
|
|
|
return be32_to_cpu(val);
|
|
}
|
|
|
|
static void flat_realign(struct inbuf *inb, int align)
|
|
{
|
|
int off = inb->ptr - inb->base;
|
|
|
|
inb->ptr = inb->base + ALIGN(off, align);
|
|
if (inb->ptr > inb->limit)
|
|
die("Premature end of data parsing flat device tree\n");
|
|
}
|
|
|
|
static char *flat_read_string(struct inbuf *inb)
|
|
{
|
|
int len = 0;
|
|
char *p = inb->ptr;
|
|
char *str;
|
|
|
|
do {
|
|
if (p >= inb->limit)
|
|
die("Premature end of data parsing flat device tree\n");
|
|
len++;
|
|
} while ((*p++) != '\0');
|
|
|
|
str = strdup(inb->ptr);
|
|
|
|
inb->ptr += len;
|
|
|
|
flat_realign(inb, sizeof(u32));
|
|
|
|
return str;
|
|
}
|
|
|
|
static struct data flat_read_data(struct inbuf *inb, int len)
|
|
{
|
|
struct data d = empty_data;
|
|
|
|
if (len == 0)
|
|
return empty_data;
|
|
|
|
d = data_grow_for(d, len);
|
|
d.len = len;
|
|
|
|
flat_read_chunk(inb, d.val, len);
|
|
|
|
flat_realign(inb, sizeof(u32));
|
|
|
|
return d;
|
|
}
|
|
|
|
static char *flat_read_stringtable(struct inbuf *inb, int offset)
|
|
{
|
|
char *p;
|
|
|
|
p = inb->base + offset;
|
|
while (1) {
|
|
if (p >= inb->limit || p < inb->base)
|
|
die("String offset %d overruns string table\n",
|
|
offset);
|
|
|
|
if (*p == '\0')
|
|
break;
|
|
|
|
p++;
|
|
}
|
|
|
|
return strdup(inb->base + offset);
|
|
}
|
|
|
|
static struct property *flat_read_property(struct inbuf *dtbuf,
|
|
struct inbuf *strbuf, int flags)
|
|
{
|
|
u32 proplen, stroff;
|
|
char *name;
|
|
struct data val;
|
|
|
|
proplen = flat_read_word(dtbuf);
|
|
stroff = flat_read_word(dtbuf);
|
|
|
|
name = flat_read_stringtable(strbuf, stroff);
|
|
|
|
if ((flags & FTF_VARALIGN) && (proplen >= 8))
|
|
flat_realign(dtbuf, 8);
|
|
|
|
val = flat_read_data(dtbuf, proplen);
|
|
|
|
return build_property(name, val, NULL);
|
|
}
|
|
|
|
|
|
static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb)
|
|
{
|
|
struct reserve_info *reservelist = NULL;
|
|
struct reserve_info *new;
|
|
char *p;
|
|
struct reserve_entry re;
|
|
|
|
/*
|
|
* Each entry is a pair of u64 (addr, size) values for 4 cell_t's.
|
|
* List terminates at an entry with size equal to zero.
|
|
*
|
|
* First pass, count entries.
|
|
*/
|
|
p = inb->ptr;
|
|
while (1) {
|
|
flat_read_chunk(inb, &re, sizeof(re));
|
|
re.address = be64_to_cpu(re.address);
|
|
re.size = be64_to_cpu(re.size);
|
|
if (re.size == 0)
|
|
break;
|
|
|
|
new = build_reserve_entry(re.address, re.size, NULL);
|
|
reservelist = add_reserve_entry(reservelist, new);
|
|
}
|
|
|
|
return reservelist;
|
|
}
|
|
|
|
|
|
static char *nodename_from_path(char *ppath, char *cpath)
|
|
{
|
|
char *lslash;
|
|
int plen;
|
|
|
|
lslash = strrchr(cpath, '/');
|
|
if (! lslash)
|
|
return NULL;
|
|
|
|
plen = lslash - cpath;
|
|
|
|
if (streq(cpath, "/") && streq(ppath, ""))
|
|
return "";
|
|
|
|
if ((plen == 0) && streq(ppath, "/"))
|
|
return strdup(lslash+1);
|
|
|
|
if (! strneq(ppath, cpath, plen))
|
|
return NULL;
|
|
|
|
return strdup(lslash+1);
|
|
}
|
|
|
|
static const char PROPCHAR[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789,._+*#?-";
|
|
static const char UNITCHAR[] = "0123456789abcdef,";
|
|
|
|
static int check_node_name(char *name)
|
|
{
|
|
char *atpos;
|
|
unsigned int basenamelen;
|
|
|
|
atpos = strrchr(name, '@');
|
|
|
|
if (atpos)
|
|
basenamelen = atpos - name;
|
|
else
|
|
basenamelen = strlen(name);
|
|
|
|
if (strspn(name, PROPCHAR) < basenamelen)
|
|
return -1;
|
|
|
|
if (atpos
|
|
&& ((basenamelen + 1 + strspn(atpos+1, UNITCHAR)) < strlen(name)))
|
|
return -1;
|
|
|
|
return basenamelen;
|
|
}
|
|
|
|
static struct node *unflatten_tree(struct inbuf *dtbuf,
|
|
struct inbuf *strbuf,
|
|
char *parent_path, int flags)
|
|
{
|
|
struct node *node;
|
|
u32 val;
|
|
|
|
node = build_node(NULL, NULL);
|
|
|
|
if (flags & FTF_FULLPATH) {
|
|
node->fullpath = flat_read_string(dtbuf);
|
|
node->name = nodename_from_path(parent_path, node->fullpath);
|
|
|
|
if (! node->name)
|
|
die("Path \"%s\" is not valid as a child of \"%s\"\n",
|
|
node->fullpath, parent_path);
|
|
} else {
|
|
node->name = flat_read_string(dtbuf);
|
|
node->fullpath = join_path(parent_path, node->name);
|
|
}
|
|
|
|
node->basenamelen = check_node_name(node->name);
|
|
if (node->basenamelen < 0) {
|
|
fprintf(stderr, "Warning \"%s\" has incorrect format\n", node->name);
|
|
}
|
|
|
|
do {
|
|
struct property *prop;
|
|
struct node *child;
|
|
|
|
val = flat_read_word(dtbuf);
|
|
switch (val) {
|
|
case OF_DT_PROP:
|
|
prop = flat_read_property(dtbuf, strbuf, flags);
|
|
add_property(node, prop);
|
|
break;
|
|
|
|
case OF_DT_BEGIN_NODE:
|
|
child = unflatten_tree(dtbuf,strbuf, node->fullpath,
|
|
flags);
|
|
add_child(node, child);
|
|
break;
|
|
|
|
case OF_DT_END_NODE:
|
|
break;
|
|
|
|
case OF_DT_END:
|
|
die("Premature OF_DT_END in device tree blob\n");
|
|
break;
|
|
|
|
default:
|
|
die("Invalid opcode word %08x in device tree blob\n",
|
|
val);
|
|
}
|
|
} while (val != OF_DT_END_NODE);
|
|
|
|
return node;
|
|
}
|
|
|
|
|
|
struct boot_info *dt_from_blob(FILE *f)
|
|
{
|
|
u32 magic, totalsize, version, size_str = 0;
|
|
u32 off_dt, off_str, off_mem_rsvmap;
|
|
int rc;
|
|
char *blob;
|
|
struct boot_param_header *bph;
|
|
char *p;
|
|
struct inbuf dtbuf, strbuf;
|
|
struct inbuf memresvbuf;
|
|
int sizeleft;
|
|
struct reserve_info *reservelist;
|
|
struct node *tree;
|
|
u32 val;
|
|
int flags = 0;
|
|
|
|
rc = fread(&magic, sizeof(magic), 1, f);
|
|
if (ferror(f))
|
|
die("Error reading DT blob magic number: %s\n",
|
|
strerror(errno));
|
|
if (rc < 1) {
|
|
if (feof(f))
|
|
die("EOF reading DT blob magic number\n");
|
|
else
|
|
die("Mysterious short read reading magic number\n");
|
|
}
|
|
|
|
magic = be32_to_cpu(magic);
|
|
if (magic != OF_DT_HEADER)
|
|
die("Blob has incorrect magic number\n");
|
|
|
|
rc = fread(&totalsize, sizeof(totalsize), 1, f);
|
|
if (ferror(f))
|
|
die("Error reading DT blob size: %s\n", strerror(errno));
|
|
if (rc < 1) {
|
|
if (feof(f))
|
|
die("EOF reading DT blob size\n");
|
|
else
|
|
die("Mysterious short read reading blob size\n");
|
|
}
|
|
|
|
totalsize = be32_to_cpu(totalsize);
|
|
if (totalsize < BPH_V1_SIZE)
|
|
die("DT blob size (%d) is too small\n", totalsize);
|
|
|
|
blob = xmalloc(totalsize);
|
|
|
|
bph = (struct boot_param_header *)blob;
|
|
bph->magic = cpu_to_be32(magic);
|
|
bph->totalsize = cpu_to_be32(totalsize);
|
|
|
|
sizeleft = totalsize - sizeof(magic) - sizeof(totalsize);
|
|
p = blob + sizeof(magic) + sizeof(totalsize);
|
|
|
|
while (sizeleft) {
|
|
if (feof(f))
|
|
die("EOF before reading %d bytes of DT blob\n",
|
|
totalsize);
|
|
|
|
rc = fread(p, 1, sizeleft, f);
|
|
if (ferror(f))
|
|
die("Error reading DT blob: %s\n",
|
|
strerror(errno));
|
|
|
|
sizeleft -= rc;
|
|
p += rc;
|
|
}
|
|
|
|
off_dt = be32_to_cpu(bph->off_dt_struct);
|
|
off_str = be32_to_cpu(bph->off_dt_strings);
|
|
off_mem_rsvmap = be32_to_cpu(bph->off_mem_rsvmap);
|
|
version = be32_to_cpu(bph->version);
|
|
|
|
fprintf(stderr, "\tmagic:\t\t\t0x%x\n", magic);
|
|
fprintf(stderr, "\ttotalsize:\t\t%d\n", totalsize);
|
|
fprintf(stderr, "\toff_dt_struct:\t\t0x%x\n", off_dt);
|
|
fprintf(stderr, "\toff_dt_strings:\t\t0x%x\n", off_str);
|
|
fprintf(stderr, "\toff_mem_rsvmap:\t\t0x%x\n", off_mem_rsvmap);
|
|
fprintf(stderr, "\tversion:\t\t0x%x\n", version );
|
|
fprintf(stderr, "\tlast_comp_version:\t0x%x\n",
|
|
be32_to_cpu(bph->last_comp_version));
|
|
|
|
if (off_mem_rsvmap >= totalsize)
|
|
die("Mem Reserve structure offset exceeds total size\n");
|
|
|
|
if (off_dt >= totalsize)
|
|
die("DT structure offset exceeds total size\n");
|
|
|
|
if (off_str > totalsize)
|
|
die("String table offset exceeds total size\n");
|
|
|
|
if (version >= 2)
|
|
fprintf(stderr, "\tboot_cpuid_phys:\t0x%x\n",
|
|
be32_to_cpu(bph->boot_cpuid_phys));
|
|
|
|
if (version >= 3) {
|
|
size_str = be32_to_cpu(bph->size_dt_strings);
|
|
fprintf(stderr, "\tsize_dt_strings:\t%d\n", size_str);
|
|
if (off_str+size_str > totalsize)
|
|
die("String table extends past total size\n");
|
|
}
|
|
|
|
if (version < 0x10) {
|
|
flags |= FTF_FULLPATH | FTF_NAMEPROPS | FTF_VARALIGN;
|
|
}
|
|
|
|
inbuf_init(&memresvbuf,
|
|
blob + off_mem_rsvmap, blob + totalsize);
|
|
inbuf_init(&dtbuf, blob + off_dt, blob + totalsize);
|
|
inbuf_init(&strbuf, blob + off_str, blob + totalsize);
|
|
|
|
if (version >= 3)
|
|
strbuf.limit = strbuf.base + size_str;
|
|
|
|
reservelist = flat_read_mem_reserve(&memresvbuf);
|
|
|
|
val = flat_read_word(&dtbuf);
|
|
|
|
if (val != OF_DT_BEGIN_NODE)
|
|
die("Device tree blob doesn't begin with OF_DT_BEGIN_NODE (begins with 0x%08x)\n", val);
|
|
|
|
tree = unflatten_tree(&dtbuf, &strbuf, "", flags);
|
|
|
|
val = flat_read_word(&dtbuf);
|
|
if (val != OF_DT_END)
|
|
die("Device tree blob doesn't end with OF_DT_END\n");
|
|
|
|
free(blob);
|
|
|
|
return build_boot_info(reservelist, tree);
|
|
}
|