/*
* Locate the blob, fix it up and return its location.
*/
static int
fdt_fixup(void)
{
int chosen, len;
len = 0;
debugf("fdt_fixup()\n");
if (fdtp == NULL && fdt_setup_fdtp() != 0)
return (0);
/* Create /chosen node (if not exists) */
if ((chosen = fdt_subnode_offset(fdtp, 0, "chosen")) ==
-FDT_ERR_NOTFOUND)
chosen = fdt_add_subnode(fdtp, 0, "chosen");
/* Value assigned to fixup-applied does not matter. */
if (fdt_getprop(fdtp, chosen, "fixup-applied", NULL))
return (1);
fdt_platform_fixups();
fdt_setprop(fdtp, chosen, "fixup-applied", NULL, 0);
return (1);
}
int
uboot_autoload(void)
{
#if defined(LOADER_FDT_SUPPORT)
int err;
if ((err = fdt_setup_fdtp()) != 0)
return (err);
#endif
return(0);
}
int
uboot_autoload(void)
{
#if defined(LOADER_FDT_SUPPORT)
int err;
if ((err = fdt_setup_fdtp()) != 0) {
printf("No valid device tree blob found!\n");
return (err);
}
#endif
return(0);
}
int
command_fdt_internal(int argc, char *argv[])
{
cmdf_t *cmdh;
char *cmd;
int i, err;
if (argc < 2) {
command_errmsg = "usage is 'fdt <command> [<args>]";
return (CMD_ERROR);
}
/*
* Check if uboot env vars were parsed already. If not, do it now.
*/
fdt_fixup();
/*
* Validate fdt <command>.
*/
cmd = strdup(argv[1]);
i = 0;
cmdh = NULL;
while (!(commands[i].name == NULL)) {
if (strcmp(cmd, commands[i].name) == 0) {
/* found it */
cmdh = commands[i].handler;
break;
}
i++;
}
if (cmdh == NULL) {
command_errmsg = "unknown command";
return (CMD_ERROR);
}
if (!fdtp)
if (fdt_setup_fdtp())
return (CMD_ERROR);
/*
* Call command handler.
*/
err = (*cmdh)(argc, argv);
return (err);
}
/*
* Copy DTB blob to specified location and return size
*/
int
fdt_copy(vm_offset_t va)
{
int err;
debugf("fdt_copy va 0x%08x\n", va);
if (fdtp == NULL) {
err = fdt_setup_fdtp();
if (err) {
printf("No valid device tree blob found!\n");
return (0);
}
}
if (fdt_fixup() == 0)
return (0);
if (fdtp_va != 0) {
/* Overwrite the FDT with the fixed version. */
/* XXX Is this really appropriate? */
COPYIN(fdtp, fdtp_va, fdtp_size);
}
COPYIN(fdtp, va, fdtp_size);
return (fdtp_size);
}
int
fdt_fixup(void)
{
const char *env;
char *ethstr;
int chosen, err, eth_no, len;
struct sys_info *si;
env = NULL;
eth_no = 0;
ethstr = NULL;
len = 0;
if (!fdtp) {
err = fdt_setup_fdtp();
if (err) {
sprintf(command_errbuf, "Could not perform blob "
"fixups. Error code: %d\n", err);
return (err);
}
}
/* Create /chosen node (if not exists) */
if ((chosen = fdt_subnode_offset(fdtp, 0, "chosen")) ==
-FDT_ERR_NOTFOUND)
chosen = fdt_add_subnode(fdtp, 0, "chosen");
/* Value assigned to fixup-applied does not matter. */
if (fdt_getprop(fdtp, chosen, "fixup-applied", NULL))
return (CMD_OK);
/* Acquire sys_info */
si = ub_get_sys_info();
while ((env = ub_env_enum(env)) != NULL) {
if (strncmp(env, "eth", 3) == 0 &&
strncmp(env + (strlen(env) - 4), "addr", 4) == 0) {
/*
* Handle Ethernet addrs: parse uboot env eth%daddr
*/
if (!eth_no) {
/*
* Check how many chars we will need to store
* maximal eth iface number.
*/
len = strlen(STRINGIFY(TMP_MAX_ETH)) +
strlen("ethernet");
/*
* Reserve mem for string "ethernet" and len
* chars for iface no.
*/
ethstr = (char *)malloc(len * sizeof(char));
bzero(ethstr, len * sizeof(char));
strcpy(ethstr, "ethernet0");
}
/* Modify blob */
fixup_ethernet(env, ethstr, ð_no, len);
} else if (strcmp(env, "consoledev") == 0)
fixup_stdout(env);
}
/* Modify cpu(s) and bus clock frequenties in /cpus node [Hz] */
fixup_cpubusfreqs(si->clk_cpu, si->clk_bus);
/* Fixup memory regions */
fixup_memory(si);
fdt_setprop(fdtp, chosen, "fixup-applied", NULL, 0);
return (CMD_OK);
}
