mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 13:43:28 +00:00
Remove the deprecated CONFIG_OF_FLAT_TREE
Use CONFIG_OF_LIBFDT instead to support flattened device trees. It is cleaner, has better functionality, and is better supported. Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
This commit is contained in:
Gerald Van Baren
parent
62bcdda293
commit
fec6d9ee7c
8 changed files with 3 additions and 580 deletions
9
README
9
README
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@ -350,7 +350,7 @@ The following options need to be configured:
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expect it to be in bytes, others in MB.
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Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
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CONFIG_OF_LIBFDT / CONFIG_OF_FLAT_TREE
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CONFIG_OF_LIBFDT
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New kernel versions are expecting firmware settings to be
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passed using flattened device trees (based on open firmware
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@ -361,13 +361,6 @@ The following options need to be configured:
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* Adds the "fdt" command
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* The bootm command automatically updates the fdt
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CONFIG_OF_FLAT_TREE
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* Deprecated, see CONFIG_OF_LIBFDT
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* Original ft_build.c-based support
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* Automatically modifies the dft as part of the bootm command
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* The environment variable "disable_of", when set,
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disables this functionality.
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OF_CPU - The proper name of the cpus node.
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OF_SOC - The proper name of the soc node.
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OF_TBCLK - The timebase frequency.
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@ -31,10 +31,7 @@
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#include <common.h>
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#include <74xx_7xx.h>
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#if defined(CONFIG_OF_FLAT_TREE)
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#include <ft_build.h>
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extern void ft_cpu_setup (void *blob, bd_t *bd);
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#endif
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#include <fdt_support.h>
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#undef DEBUG
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@ -89,23 +86,6 @@ long int initdram (int board_type)
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return dram_size (board_type);
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}
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#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
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void
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ft_board_setup (void *blob, bd_t *bd)
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{
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u32 *p;
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int len;
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ft_cpu_setup (blob, bd);
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p = ft_get_prop (blob, "/memory/reg", &len);
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if (p != NULL) {
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*p++ = cpu_to_be32 (bd->bi_memstart);
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*p = cpu_to_be32 (bd->bi_memsize);
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}
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}
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#endif
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#if defined(CONFIG_OF_BOARD_SETUP)
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void
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ft_board_setup(void *blob, bd_t *bd)
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@ -30,10 +30,6 @@
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#include <pci.h>
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#include <asm/m8260_pci.h>
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#endif
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#if CONFIG_OF_FLAT_TREE
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#include <ft_build.h>
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#include <image.h>
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#endif
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#if 0
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#define deb_printf(fmt,arg...) \
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@ -119,7 +119,6 @@ COBJS-y += env_nowhere.o
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COBJS-y += exports.o
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COBJS-y += flash.o
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COBJS-y += fpga.o
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COBJS-y += ft_build.o
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COBJS-y += hush.o
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COBJS-y += kgdb.o
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COBJS-y += lcd.o
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@ -1,471 +0,0 @@
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/*
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* OF flat tree builder
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* Written by: Pantelis Antoniou <pantelis.antoniou@gmail.com>
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* Updated by: Matthew McClintock <msm@freescale.com>
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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
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* the 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
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* GNU 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,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <malloc.h>
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#include <environment.h>
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#ifdef CONFIG_OF_FLAT_TREE
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#include <asm/errno.h>
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#include <stddef.h>
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#include <ft_build.h>
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#include <linux/ctype.h>
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#undef DEBUG
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/* align addr on a size boundary - adjust address up if needed -- Cort */
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#define _ALIGN(addr,size) (((addr)+(size)-1)&(~((size)-1)))
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#ifndef CONFIG_OF_BOOT_CPU
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#define CONFIG_OF_BOOT_CPU 0
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#endif
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#define SIZE_OF_RSVMAP_ENTRY (2*sizeof(u64))
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static void ft_put_word(struct ft_cxt *cxt, u32 v)
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{
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memmove(cxt->p + sizeof(u32), cxt->p, cxt->p_end - cxt->p);
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*(u32 *) cxt->p = cpu_to_be32(v);
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cxt->p += sizeof(u32);
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cxt->p_end += sizeof(u32);
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}
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static inline void ft_put_bin(struct ft_cxt *cxt, const void *data, int sz)
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{
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int aligned_size = ((u8 *)_ALIGN((unsigned long)cxt->p + sz,
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sizeof(u32))) - cxt->p;
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memmove(cxt->p + aligned_size, cxt->p, cxt->p_end - cxt->p);
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/* make sure the last bytes are zeroed */
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memset(cxt->p + aligned_size - (aligned_size % sizeof(u32)), 0,
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(aligned_size % sizeof(u32)));
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memcpy(cxt->p, data, sz);
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cxt->p += aligned_size;
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cxt->p_end += aligned_size;
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}
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void ft_begin_node(struct ft_cxt *cxt, const char *name)
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{
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ft_put_word(cxt, OF_DT_BEGIN_NODE);
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ft_put_bin(cxt, name, strlen(name) + 1);
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}
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void ft_end_node(struct ft_cxt *cxt)
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{
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ft_put_word(cxt, OF_DT_END_NODE);
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}
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void ft_nop(struct ft_cxt *cxt)
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{
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ft_put_word(cxt, OF_DT_NOP);
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}
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static int lookup_string(struct ft_cxt *cxt, const char *name)
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{
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u8 *p;
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p = cxt->p;
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while (p < cxt->p_end) {
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if (strcmp((char *)p, name) == 0)
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return p - cxt->p;
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p += strlen((char *)p) + 1;
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}
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return -1;
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}
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void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz)
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{
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int off = 0;
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off = lookup_string(cxt, name);
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if (off == -1) {
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memcpy(cxt->p_end, name, strlen(name) + 1);
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off = cxt->p_end - cxt->p;
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cxt->p_end += strlen(name) + 1;
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}
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/* now put offset from beginning of *STRUCTURE* */
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/* will be fixed up at the end */
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ft_put_word(cxt, OF_DT_PROP);
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ft_put_word(cxt, sz);
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ft_put_word(cxt, off);
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ft_put_bin(cxt, data, sz);
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}
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void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str)
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{
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ft_prop(cxt, name, str, strlen(str) + 1);
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}
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void ft_prop_int(struct ft_cxt *cxt, const char *name, int val)
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{
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u32 v = cpu_to_be32((u32) val);
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ft_prop(cxt, name, &v, sizeof(u32));
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}
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/* pick up and start working on a tree in place */
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void ft_init_cxt(struct ft_cxt *cxt, void *blob)
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{
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struct boot_param_header *bph = blob;
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memset(cxt, 0, sizeof(*cxt));
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cxt->bph = bph;
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bph->boot_cpuid_phys = CONFIG_OF_BOOT_CPU;
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/* find beginning and end of reserve map table (zeros in last entry) */
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cxt->p_rsvmap = (u8 *)bph + bph->off_mem_rsvmap;
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while ( ((uint64_t *)cxt->p_rsvmap)[0] != 0 &&
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((uint64_t *)cxt->p_rsvmap)[1] != 0 ) {
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cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY;
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}
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cxt->p_start = (u8 *)bph + bph->off_dt_struct;
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cxt->p_end = (u8 *)bph + bph->totalsize;
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cxt->p = (u8 *)bph + bph->off_dt_strings;
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}
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/* add a reserver physical area to the rsvmap */
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void ft_add_rsvmap(struct ft_cxt *cxt, u64 physstart, u64 physend)
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{
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memmove(cxt->p_rsvmap + SIZE_OF_RSVMAP_ENTRY, cxt->p_rsvmap,
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cxt->p_end - cxt->p_rsvmap);
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((u64 *)cxt->p_rsvmap)[0] = cpu_to_be64(physstart);
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((u64 *)cxt->p_rsvmap)[1] = cpu_to_be64(physend);
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((u64 *)cxt->p_rsvmap)[2] = 0;
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((u64 *)cxt->p_rsvmap)[3] = 0;
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cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY;
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cxt->p_start += SIZE_OF_RSVMAP_ENTRY;
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cxt->p += SIZE_OF_RSVMAP_ENTRY;
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cxt->p_end += SIZE_OF_RSVMAP_ENTRY;
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}
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void ft_end_tree(struct ft_cxt *cxt)
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{
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ft_put_word(cxt, OF_DT_END);
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}
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/* update the boot param header with correct values */
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void ft_finalize_tree(struct ft_cxt *cxt) {
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struct boot_param_header *bph = cxt->bph;
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bph->totalsize = cxt->p_end - (u8 *)bph;
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bph->off_dt_struct = cxt->p_start - (u8 *)bph;
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bph->off_dt_strings = cxt->p - (u8 *)bph;
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bph->dt_strings_size = cxt->p_end - cxt->p;
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}
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static int is_printable_string(const void *data, int len)
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{
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const char *s = data;
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const char *ss;
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/* zero length is not */
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if (len == 0)
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return 0;
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/* must terminate with zero */
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if (s[len - 1] != '\0')
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return 0;
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ss = s;
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while (*s && isprint(*s))
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s++;
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/* not zero, or not done yet */
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if (*s != '\0' || (s + 1 - ss) < len)
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return 0;
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return 1;
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}
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static void print_data(const void *data, int len)
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{
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int i;
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const u8 *s;
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/* no data, don't print */
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if (len == 0)
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return;
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if (is_printable_string(data, len)) {
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puts(" = \"");
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puts(data);
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puts("\"");
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return;
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}
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switch (len) {
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case 1: /* byte */
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printf(" = <%02x>", (*(u8 *) data) & 0xff);
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break;
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case 2: /* half-word */
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printf(" = <%04x>", be16_to_cpu(*(u16 *) data) & 0xffff);
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break;
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case 4: /* word */
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printf(" = <%x>", be32_to_cpu(*(u32 *) data) & 0xffffffffU);
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break;
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case 8: /* double-word */
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printf(" = <%qx>", be64_to_cpu(*(uint64_t *) data));
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break;
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default: /* anything else... hexdump */
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printf(" = [");
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for (i = 0, s = data; i < len; i++)
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printf("%02x%s", s[i], i < len - 1 ? " " : "");
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printf("]");
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break;
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}
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}
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void ft_dump_blob(const void *bphp)
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{
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const struct boot_param_header *bph = bphp;
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const uint64_t *p_rsvmap = (const uint64_t *)
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((const char *)bph + be32_to_cpu(bph->off_mem_rsvmap));
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const u32 *p_struct = (const u32 *)
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((const char *)bph + be32_to_cpu(bph->off_dt_struct));
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const u32 *p_strings = (const u32 *)
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((const char *)bph + be32_to_cpu(bph->off_dt_strings));
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u32 tag;
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const u32 *p;
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const char *s, *t;
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int depth, sz, shift;
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int i;
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uint64_t addr, size;
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if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
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/* not valid tree */
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return;
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}
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depth = 0;
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shift = 4;
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for (i = 0;; i++) {
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addr = be64_to_cpu(p_rsvmap[i * 2]);
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size = be64_to_cpu(p_rsvmap[i * 2 + 1]);
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if (addr == 0 && size == 0)
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break;
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printf("/memreserve/ %qx %qx;\n", addr, size);
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}
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p = p_struct;
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while ((tag = be32_to_cpu(*p++)) != OF_DT_END) {
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/* printf("tag: 0x%08x (%d)\n", tag, p - p_struct); */
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if (tag == OF_DT_BEGIN_NODE) {
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s = (const char *)p;
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p = (u32 *) _ALIGN((unsigned long)p + strlen(s) + 1, 4);
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printf("%*s%s {\n", depth * shift, "", s);
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depth++;
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continue;
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}
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if (tag == OF_DT_END_NODE) {
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depth--;
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printf("%*s};\n", depth * shift, "");
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continue;
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}
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if (tag == OF_DT_NOP) {
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printf("%*s[NOP]\n", depth * shift, "");
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continue;
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}
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if (tag != OF_DT_PROP) {
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fprintf(stderr, "%*s ** Unknown tag 0x%08x at 0x%x\n",
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depth * shift, "", tag, --p);
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break;
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}
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sz = be32_to_cpu(*p++);
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s = (const char *)p_strings + be32_to_cpu(*p++);
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t = (const char *)p;
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p = (const u32 *)_ALIGN((unsigned long)p + sz, 4);
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printf("%*s%s", depth * shift, "", s);
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print_data(t, sz);
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printf(";\n");
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}
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}
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void ft_backtrack_node(struct ft_cxt *cxt)
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{
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int i = 4;
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while (be32_to_cpu(*(u32 *) (cxt->p - i)) != OF_DT_END_NODE)
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i += 4;
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memmove (cxt->p - i, cxt->p, cxt->p_end - cxt->p);
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cxt->p_end -= i;
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cxt->p -= i;
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}
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void *ft_get_prop(void *bphp, const char *propname, int *szp)
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{
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struct boot_param_header *bph = bphp;
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uint32_t *p_struct =
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(uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_struct));
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uint32_t *p_strings =
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(uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_strings));
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uint32_t version = be32_to_cpu(bph->version);
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uint32_t tag;
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uint32_t *p;
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char *s, *t;
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char *ss;
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int sz;
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static char path[256], prop[256];
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path[0] = '\0';
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p = p_struct;
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while ((tag = be32_to_cpu(*p++)) != OF_DT_END) {
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if (tag == OF_DT_BEGIN_NODE) {
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s = (char *)p;
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p = (uint32_t *) _ALIGN((unsigned long)p + strlen(s) +
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1, 4);
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strcat(path, s);
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strcat(path, "/");
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continue;
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}
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if (tag == OF_DT_END_NODE) {
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path[strlen(path) - 1] = '\0';
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ss = strrchr(path, '/');
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if (ss != NULL)
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ss[1] = '\0';
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continue;
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}
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if (tag == OF_DT_NOP)
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continue;
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if (tag != OF_DT_PROP)
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break;
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sz = be32_to_cpu(*p++);
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s = (char *)p_strings + be32_to_cpu(*p++);
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if (version < 0x10 && sz >= 8)
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p = (uint32_t *) _ALIGN((unsigned long)p, 8);
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||||
t = (char *)p;
|
||||
p = (uint32_t *) _ALIGN((unsigned long)p + sz, 4);
|
||||
|
||||
strcpy(prop, path);
|
||||
strcat(prop, s);
|
||||
|
||||
if (strcmp(prop, propname) == 0) {
|
||||
*szp = sz;
|
||||
return t;
|
||||
}
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/********************************************************************/
|
||||
|
||||
void ft_setup(void *blob, bd_t * bd, ulong initrd_start, ulong initrd_end)
|
||||
{
|
||||
u32 *p;
|
||||
int len;
|
||||
struct ft_cxt cxt;
|
||||
ulong clock;
|
||||
|
||||
/* disable OF tree; booting old kernel */
|
||||
if (getenv("disable_of") != NULL) {
|
||||
memcpy(blob, bd, sizeof(*bd));
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("recieved oftree\n");
|
||||
ft_dump_blob(blob);
|
||||
#endif
|
||||
|
||||
ft_init_cxt(&cxt, blob);
|
||||
|
||||
if (initrd_start && initrd_end)
|
||||
ft_add_rsvmap(&cxt, initrd_start, initrd_end - initrd_start + 1);
|
||||
|
||||
/* back into root */
|
||||
ft_backtrack_node(&cxt);
|
||||
|
||||
ft_begin_node(&cxt, "chosen");
|
||||
ft_prop_str(&cxt, "name", "chosen");
|
||||
|
||||
ft_prop_str(&cxt, "bootargs", getenv("bootargs"));
|
||||
ft_prop_int(&cxt, "linux,platform", 0x600); /* what is this? */
|
||||
if (initrd_start && initrd_end) {
|
||||
ft_prop_int(&cxt, "linux,initrd-start", initrd_start);
|
||||
ft_prop_int(&cxt, "linux,initrd-end", initrd_end);
|
||||
}
|
||||
#ifdef OF_STDOUT_PATH
|
||||
ft_prop_str(&cxt, "linux,stdout-path", OF_STDOUT_PATH);
|
||||
#endif
|
||||
|
||||
ft_end_node(&cxt);
|
||||
|
||||
ft_end_node(&cxt); /* end root */
|
||||
|
||||
ft_end_tree(&cxt);
|
||||
ft_finalize_tree(&cxt);
|
||||
|
||||
#ifdef CONFIG_PPC
|
||||
clock = bd->bi_intfreq;
|
||||
p = ft_get_prop(blob, "/cpus/" OF_CPU "/clock-frequency", &len);
|
||||
if (p != NULL)
|
||||
*p = cpu_to_be32(clock);
|
||||
|
||||
#ifdef OF_TBCLK
|
||||
clock = OF_TBCLK;
|
||||
p = ft_get_prop(blob, "/cpus/" OF_CPU "/timebase-frequency", &len);
|
||||
if (p != NULL)
|
||||
*p = cpu_to_be32(clock);
|
||||
#endif
|
||||
#endif /* __powerpc__ */
|
||||
|
||||
#ifdef CONFIG_OF_BOARD_SETUP
|
||||
ft_board_setup(blob, bd);
|
||||
#endif
|
||||
|
||||
/* in case the size changed in the platform code */
|
||||
ft_finalize_tree(&cxt);
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("final OF-tree\n");
|
||||
ft_dump_blob(blob);
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
|
@ -49,10 +49,6 @@
|
|||
#include <fdt_support.h>
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_OF_FLAT_TREE)
|
||||
#include <ft_build.h>
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_AMIGAONEG3SE
|
||||
#include "../board/MAI/AmigaOneG3SE/via686.h"
|
||||
#include "../board/MAI/AmigaOneG3SE/memio.h"
|
||||
|
|
|
|||
|
|
@ -58,6 +58,7 @@
|
|||
#define CONFIG_BOARD_EARLY_INIT_R
|
||||
#define CONFIG_MISC_INIT_R
|
||||
|
||||
#define CONFIG_HAS_ETH0
|
||||
#define CONFIG_HAS_ETH1
|
||||
|
||||
#define CONFIG_ENV_OVERWRITE
|
||||
|
|
|
|||
|
|
@ -1,71 +0,0 @@
|
|||
/*
|
||||
* OF Flat tree builder
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef FT_BUILD_H
|
||||
#define FT_BUILD_H
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <asm/u-boot.h>
|
||||
|
||||
/* Definitions used by the flattened device tree */
|
||||
#define OF_DT_HEADER 0xd00dfeed /* marker */
|
||||
#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
|
||||
#define OF_DT_END_NODE 0x2 /* End node */
|
||||
#define OF_DT_PROP 0x3 /* Property: name off, size,
|
||||
* content */
|
||||
#define OF_DT_NOP 0x4 /* nop */
|
||||
#define OF_DT_END 0x9
|
||||
|
||||
#define OF_DT_VERSION 0x10
|
||||
|
||||
struct boot_param_header {
|
||||
u32 magic; /* magic word OF_DT_HEADER */
|
||||
u32 totalsize; /* total size of DT block */
|
||||
u32 off_dt_struct; /* offset to structure */
|
||||
u32 off_dt_strings; /* offset to strings */
|
||||
u32 off_mem_rsvmap; /* offset to memory reserve map */
|
||||
u32 version; /* format version */
|
||||
u32 last_comp_version; /* last compatible version */
|
||||
/* version 2 fields below */
|
||||
u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
|
||||
/* version 3 fields below */
|
||||
u32 dt_strings_size; /* size of the DT strings block */
|
||||
};
|
||||
|
||||
struct ft_cxt {
|
||||
struct boot_param_header *bph;
|
||||
u8 *p_rsvmap;
|
||||
u8 *p_start; /* pointer to beginning of dt_struct */
|
||||
u8 *p_end; /* pointer to end of dt_strings */
|
||||
u8 *p; /* pointer to end of dt_struct and beginning of dt_strings */
|
||||
};
|
||||
|
||||
void ft_begin_node(struct ft_cxt *cxt, const char *name);
|
||||
void ft_init_cxt(struct ft_cxt *cxt, void *blob);
|
||||
void ft_end_node(struct ft_cxt *cxt);
|
||||
|
||||
void ft_end_tree(struct ft_cxt *cxt);
|
||||
void ft_finalize_tree(struct ft_cxt *cxt);
|
||||
|
||||
void ft_nop(struct ft_cxt *cxt);
|
||||
void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz);
|
||||
void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str);
|
||||
void ft_prop_int(struct ft_cxt *cxt, const char *name, int val);
|
||||
void ft_begin(struct ft_cxt *cxt, void *blob, int max_size);
|
||||
void ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
|
||||
|
||||
void ft_setup(void *blob, bd_t * bd, ulong initrd_start, ulong initrd_end);
|
||||
|
||||
void ft_dump_blob(const void *bphp);
|
||||
void ft_merge_blob(struct ft_cxt *cxt, void *blob);
|
||||
void *ft_get_prop(void *bphp, const char *propname, int *szp);
|
||||
|
||||
#ifdef CONFIG_OF_BOARD_SETUP
|
||||
void ft_board_setup(void *blob, bd_t *bd);
|
||||
void ft_cpu_setup(void *blob, bd_t *bd);
|
||||
void ft_pci_setup(void *blob, bd_t *bd);
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue