diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 1 | ||||
| -rw-r--r-- | common/ft_build.c | 471 |
2 files changed, 0 insertions, 472 deletions
diff --git a/common/Makefile b/common/Makefile index b425795..4287108 100644 --- a/common/Makefile +++ b/common/Makefile @@ -119,7 +119,6 @@ COBJS-y += env_nowhere.o COBJS-y += exports.o COBJS-y += flash.o COBJS-y += fpga.o -COBJS-y += ft_build.o COBJS-y += hush.o COBJS-y += kgdb.o COBJS-y += lcd.o diff --git a/common/ft_build.c b/common/ft_build.c deleted file mode 100644 index b951178..0000000 --- a/common/ft_build.c +++ /dev/null @@ -1,471 +0,0 @@ -/* - * OF flat tree builder - * Written by: Pantelis Antoniou <pantelis.antoniou@gmail.com> - * Updated by: Matthew McClintock <msm@freescale.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <malloc.h> -#include <environment.h> - -#ifdef CONFIG_OF_FLAT_TREE - -#include <asm/errno.h> -#include <stddef.h> - -#include <ft_build.h> -#include <linux/ctype.h> - -#undef DEBUG - -/* align addr on a size boundary - adjust address up if needed -- Cort */ -#define _ALIGN(addr,size) (((addr)+(size)-1)&(~((size)-1))) -#ifndef CONFIG_OF_BOOT_CPU -#define CONFIG_OF_BOOT_CPU 0 -#endif -#define SIZE_OF_RSVMAP_ENTRY (2*sizeof(u64)) - -static void ft_put_word(struct ft_cxt *cxt, u32 v) -{ - memmove(cxt->p + sizeof(u32), cxt->p, cxt->p_end - cxt->p); - - *(u32 *) cxt->p = cpu_to_be32(v); - cxt->p += sizeof(u32); - cxt->p_end += sizeof(u32); -} - -static inline void ft_put_bin(struct ft_cxt *cxt, const void *data, int sz) -{ - int aligned_size = ((u8 *)_ALIGN((unsigned long)cxt->p + sz, - sizeof(u32))) - cxt->p; - - memmove(cxt->p + aligned_size, cxt->p, cxt->p_end - cxt->p); - - /* make sure the last bytes are zeroed */ - memset(cxt->p + aligned_size - (aligned_size % sizeof(u32)), 0, - (aligned_size % sizeof(u32))); - - memcpy(cxt->p, data, sz); - - cxt->p += aligned_size; - cxt->p_end += aligned_size; -} - -void ft_begin_node(struct ft_cxt *cxt, const char *name) -{ - ft_put_word(cxt, OF_DT_BEGIN_NODE); - ft_put_bin(cxt, name, strlen(name) + 1); -} - -void ft_end_node(struct ft_cxt *cxt) -{ - ft_put_word(cxt, OF_DT_END_NODE); -} - -void ft_nop(struct ft_cxt *cxt) -{ - ft_put_word(cxt, OF_DT_NOP); -} - -static int lookup_string(struct ft_cxt *cxt, const char *name) -{ - u8 *p; - - p = cxt->p; - while (p < cxt->p_end) { - if (strcmp((char *)p, name) == 0) - return p - cxt->p; - p += strlen((char *)p) + 1; - } - - return -1; -} - -void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz) -{ - int off = 0; - - off = lookup_string(cxt, name); - if (off == -1) { - memcpy(cxt->p_end, name, strlen(name) + 1); - off = cxt->p_end - cxt->p; - cxt->p_end += strlen(name) + 1; - } - - /* now put offset from beginning of *STRUCTURE* */ - /* will be fixed up at the end */ - ft_put_word(cxt, OF_DT_PROP); - ft_put_word(cxt, sz); - ft_put_word(cxt, off); - ft_put_bin(cxt, data, sz); -} - -void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str) -{ - ft_prop(cxt, name, str, strlen(str) + 1); -} - -void ft_prop_int(struct ft_cxt *cxt, const char *name, int val) -{ - u32 v = cpu_to_be32((u32) val); - - ft_prop(cxt, name, &v, sizeof(u32)); -} - -/* pick up and start working on a tree in place */ -void ft_init_cxt(struct ft_cxt *cxt, void *blob) -{ - struct boot_param_header *bph = blob; - - memset(cxt, 0, sizeof(*cxt)); - - cxt->bph = bph; - bph->boot_cpuid_phys = CONFIG_OF_BOOT_CPU; - - /* find beginning and end of reserve map table (zeros in last entry) */ - cxt->p_rsvmap = (u8 *)bph + bph->off_mem_rsvmap; - while ( ((uint64_t *)cxt->p_rsvmap)[0] != 0 && - ((uint64_t *)cxt->p_rsvmap)[1] != 0 ) { - cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY; - } - - cxt->p_start = (u8 *)bph + bph->off_dt_struct; - cxt->p_end = (u8 *)bph + bph->totalsize; - cxt->p = (u8 *)bph + bph->off_dt_strings; -} - -/* add a reserver physical area to the rsvmap */ -void ft_add_rsvmap(struct ft_cxt *cxt, u64 physstart, u64 physend) -{ - memmove(cxt->p_rsvmap + SIZE_OF_RSVMAP_ENTRY, cxt->p_rsvmap, - cxt->p_end - cxt->p_rsvmap); - - ((u64 *)cxt->p_rsvmap)[0] = cpu_to_be64(physstart); - ((u64 *)cxt->p_rsvmap)[1] = cpu_to_be64(physend); - ((u64 *)cxt->p_rsvmap)[2] = 0; - ((u64 *)cxt->p_rsvmap)[3] = 0; - - cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY; - cxt->p_start += SIZE_OF_RSVMAP_ENTRY; - cxt->p += SIZE_OF_RSVMAP_ENTRY; - cxt->p_end += SIZE_OF_RSVMAP_ENTRY; -} - -void ft_end_tree(struct ft_cxt *cxt) -{ - ft_put_word(cxt, OF_DT_END); -} - -/* update the boot param header with correct values */ -void ft_finalize_tree(struct ft_cxt *cxt) { - struct boot_param_header *bph = cxt->bph; - - bph->totalsize = cxt->p_end - (u8 *)bph; - bph->off_dt_struct = cxt->p_start - (u8 *)bph; - bph->off_dt_strings = cxt->p - (u8 *)bph; - bph->dt_strings_size = cxt->p_end - cxt->p; -} - -static int is_printable_string(const void *data, int len) -{ - const char *s = data; - const char *ss; - - /* zero length is not */ - if (len == 0) - return 0; - - /* must terminate with zero */ - if (s[len - 1] != '\0') - return 0; - - ss = s; - while (*s && isprint(*s)) - s++; - - /* not zero, or not done yet */ - if (*s != '\0' || (s + 1 - ss) < len) - return 0; - - return 1; -} - -static void print_data(const void *data, int len) -{ - int i; - const u8 *s; - - /* no data, don't print */ - if (len == 0) - return; - - if (is_printable_string(data, len)) { - puts(" = \""); - puts(data); - puts("\""); - return; - } - - switch (len) { - case 1: /* byte */ - printf(" = <%02x>", (*(u8 *) data) & 0xff); - break; - case 2: /* half-word */ - printf(" = <%04x>", be16_to_cpu(*(u16 *) data) & 0xffff); - break; - case 4: /* word */ - printf(" = <%x>", be32_to_cpu(*(u32 *) data) & 0xffffffffU); - break; - case 8: /* double-word */ - printf(" = <%qx>", be64_to_cpu(*(uint64_t *) data)); - break; - default: /* anything else... hexdump */ - printf(" = ["); - for (i = 0, s = data; i < len; i++) - printf("%02x%s", s[i], i < len - 1 ? " " : ""); - printf("]"); - - break; - } -} - -void ft_dump_blob(const void *bphp) -{ - const struct boot_param_header *bph = bphp; - const uint64_t *p_rsvmap = (const uint64_t *) - ((const char *)bph + be32_to_cpu(bph->off_mem_rsvmap)); - const u32 *p_struct = (const u32 *) - ((const char *)bph + be32_to_cpu(bph->off_dt_struct)); - const u32 *p_strings = (const u32 *) - ((const char *)bph + be32_to_cpu(bph->off_dt_strings)); - u32 tag; - const u32 *p; - const char *s, *t; - int depth, sz, shift; - int i; - uint64_t addr, size; - - if (be32_to_cpu(bph->magic) != OF_DT_HEADER) { - /* not valid tree */ - return; - } - - depth = 0; - shift = 4; - - for (i = 0;; i++) { - addr = be64_to_cpu(p_rsvmap[i * 2]); - size = be64_to_cpu(p_rsvmap[i * 2 + 1]); - if (addr == 0 && size == 0) - break; - - printf("/memreserve/ %qx %qx;\n", addr, size); - } - - p = p_struct; - while ((tag = be32_to_cpu(*p++)) != OF_DT_END) { - - /* printf("tag: 0x%08x (%d)\n", tag, p - p_struct); */ - - if (tag == OF_DT_BEGIN_NODE) { - s = (const char *)p; - p = (u32 *) _ALIGN((unsigned long)p + strlen(s) + 1, 4); - - printf("%*s%s {\n", depth * shift, "", s); - - depth++; - continue; - } - - if (tag == OF_DT_END_NODE) { - depth--; - - printf("%*s};\n", depth * shift, ""); - continue; - } - - if (tag == OF_DT_NOP) { - printf("%*s[NOP]\n", depth * shift, ""); - continue; - } - - if (tag != OF_DT_PROP) { - fprintf(stderr, "%*s ** Unknown tag 0x%08x at 0x%x\n", - depth * shift, "", tag, --p); - break; - } - sz = be32_to_cpu(*p++); - s = (const char *)p_strings + be32_to_cpu(*p++); - t = (const char *)p; - p = (const u32 *)_ALIGN((unsigned long)p + sz, 4); - printf("%*s%s", depth * shift, "", s); - print_data(t, sz); - printf(";\n"); - } -} - -void ft_backtrack_node(struct ft_cxt *cxt) -{ - int i = 4; - - while (be32_to_cpu(*(u32 *) (cxt->p - i)) != OF_DT_END_NODE) - i += 4; - - memmove (cxt->p - i, cxt->p, cxt->p_end - cxt->p); - - cxt->p_end -= i; - cxt->p -= i; -} - -void *ft_get_prop(void *bphp, const char *propname, int *szp) -{ - struct boot_param_header *bph = bphp; - uint32_t *p_struct = - (uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_struct)); - uint32_t *p_strings = - (uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_strings)); - uint32_t version = be32_to_cpu(bph->version); - uint32_t tag; - uint32_t *p; - char *s, *t; - char *ss; - int sz; - static char path[256], prop[256]; - - path[0] = '\0'; - - p = p_struct; - while ((tag = be32_to_cpu(*p++)) != OF_DT_END) { - - if (tag == OF_DT_BEGIN_NODE) { - s = (char *)p; - p = (uint32_t *) _ALIGN((unsigned long)p + strlen(s) + - 1, 4); - strcat(path, s); - strcat(path, "/"); - continue; - } - - if (tag == OF_DT_END_NODE) { - path[strlen(path) - 1] = '\0'; - ss = strrchr(path, '/'); - if (ss != NULL) - ss[1] = '\0'; - continue; - } - - if (tag == OF_DT_NOP) - continue; - - if (tag != OF_DT_PROP) - break; - - sz = be32_to_cpu(*p++); - s = (char *)p_strings + be32_to_cpu(*p++); - if (version < 0x10 && sz >= 8) - p = (uint32_t *) _ALIGN((unsigned long)p, 8); - 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 |