/*
* Recursively print (a portion of) the fdt. The depth parameter
* determines how deeply nested the fdt is printed.
*/
static int fdt_print(const char *pathp, char *prop, int depth)
{
static char tabs[MAX_LEVEL+1] =
"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"
"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
const void *nodep; /* property node pointer */
int nodeoffset; /* node offset from libfdt */
int nextoffset; /* next node offset from libfdt */
uint32_t tag; /* tag */
int len; /* length of the property */
int level = 0; /* keep track of nesting level */
const struct fdt_property *fdt_prop;
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
/*
* The user passed in a property as well as node path.
* Print only the given property and then return.
*/
if (prop) {
nodep = fdt_getprop (fdt, nodeoffset, prop, &len);
if (len == 0) {
/* no property value */
printf("%s %s\n", pathp, prop);
return 0;
} else if (len > 0) {
printf("%s=", prop);
print_data (nodep, len);
printf("\n");
return 0;
} else {
printf ("libfdt fdt_getprop(): %s\n",
fdt_strerror(len));
return 1;
}
}
/*
* The user passed in a node path and no property,
* print the node and all subnodes.
*/
while(level >= 0) {
tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
switch(tag) {
case FDT_BEGIN_NODE:
pathp = fdt_get_name(fdt, nodeoffset, NULL);
if (level <= depth) {
if (pathp == NULL)
pathp = "/* NULL pointer error */";
if (*pathp == '\0')
pathp = "/"; /* root is nameless */
printf("%s%s {\n",
&tabs[MAX_LEVEL - level], pathp);
}
level++;
if (level >= MAX_LEVEL) {
printf("Nested too deep, aborting.\n");
return 1;
}
break;
case FDT_END_NODE:
level--;
if (level <= depth)
printf("%s};\n", &tabs[MAX_LEVEL - level]);
if (level == 0) {
level = -1; /* exit the loop */
}
break;
case FDT_PROP:
fdt_prop = fdt_offset_ptr(fdt, nodeoffset,
sizeof(*fdt_prop));
pathp = fdt_string(fdt,
fdt32_to_cpu(fdt_prop->nameoff));
len = fdt32_to_cpu(fdt_prop->len);
nodep = fdt_prop->data;
if (len < 0) {
printf ("libfdt fdt_getprop(): %s\n",
fdt_strerror(len));
return 1;
} else if (len == 0) {
/* the property has no value */
if (level <= depth)
printf("%s%s;\n",
&tabs[MAX_LEVEL - level],
pathp);
} else {
if (level <= depth) {
printf("%s%s=",
&tabs[MAX_LEVEL - level],
pathp);
print_data (nodep, len);
printf(";\n");
}
}
break;
case FDT_NOP:
printf("/* NOP */\n", &tabs[MAX_LEVEL - level]);
break;
case FDT_END:
return 1;
default:
if (level <= depth)
printf("Unknown tag 0x%08X\n", tag);
return 1;
}
nodeoffset = nextoffset;
}
return 0;
}
void ft_board_setup_ex(void *blob, bd_t *bd)
{
int lpae;
u64 size;
char *env;
u64 *reserve_start;
int unitrd_fixup = 0;
env = env_get("mem_lpae");
lpae = env && simple_strtol(env, NULL, 0);
env = env_get("uinitrd_fixup");
unitrd_fixup = env && simple_strtol(env, NULL, 0);
/* Fix up the initrd */
if (lpae && unitrd_fixup) {
int nodeoffset;
int err;
u64 *prop1, *prop2;
u64 initrd_start, initrd_end;
nodeoffset = fdt_path_offset(blob, "/chosen");
if (nodeoffset >= 0) {
prop1 = (u64 *)fdt_getprop(blob, nodeoffset,
"linux,initrd-start", NULL);
prop2 = (u64 *)fdt_getprop(blob, nodeoffset,
"linux,initrd-end", NULL);
if (prop1 && prop2) {
initrd_start = __be64_to_cpu(*prop1);
initrd_start -= CONFIG_SYS_SDRAM_BASE;
initrd_start += CONFIG_SYS_LPAE_SDRAM_BASE;
initrd_start = __cpu_to_be64(initrd_start);
initrd_end = __be64_to_cpu(*prop2);
initrd_end -= CONFIG_SYS_SDRAM_BASE;
initrd_end += CONFIG_SYS_LPAE_SDRAM_BASE;
initrd_end = __cpu_to_be64(initrd_end);
err = fdt_delprop(blob, nodeoffset,
"linux,initrd-start");
if (err < 0)
puts("error deleting initrd-start\n");
err = fdt_delprop(blob, nodeoffset,
"linux,initrd-end");
if (err < 0)
puts("error deleting initrd-end\n");
err = fdt_setprop(blob, nodeoffset,
"linux,initrd-start",
&initrd_start,
sizeof(initrd_start));
if (err < 0)
puts("error adding initrd-start\n");
err = fdt_setprop(blob, nodeoffset,
"linux,initrd-end",
&initrd_end,
sizeof(initrd_end));
if (err < 0)
puts("error adding linux,initrd-end\n");
}
}
}
if (lpae) {
/*
* the initrd and other reserved memory areas are
* embedded in in the DTB itslef. fix up these addresses
* to 36 bit format
*/
reserve_start = (u64 *)((char *)blob +
fdt_off_mem_rsvmap(blob));
while (1) {
*reserve_start = __cpu_to_be64(*reserve_start);
size = __cpu_to_be64(*(reserve_start + 1));
if (size) {
*reserve_start -= CONFIG_SYS_SDRAM_BASE;
*reserve_start +=
CONFIG_SYS_LPAE_SDRAM_BASE;
*reserve_start =
__cpu_to_be64(*reserve_start);
} else {
break;
}
reserve_start += 2;
}
}
ddr3_check_ecc_int(KS2_DDR3A_EMIF_CTRL_BASE);
}
/**
* fit_print_contents - prints out the contents of the FIT format image
* @fit: pointer to the FIT format image header
* @p: pointer to prefix string
*
* fit_print_contents() formats a multi line FIT image contents description.
* The routine prints out FIT image properties (root node level) followed by
* the details of each component image.
*
* returns:
* no returned results
*/
void fit_print_contents(const void *fit)
{
char *desc;
char *uname;
int images_noffset;
int confs_noffset;
int noffset;
int ndepth;
int count = 0;
int ret;
const char *p;
time_t timestamp;
/* Indent string is defined in header image.h */
p = IMAGE_INDENT_STRING;
/* Root node properties */
ret = fit_get_desc(fit, 0, &desc);
printf("%sFIT description: ", p);
if (ret)
printf("unavailable\n");
else
printf("%s\n", desc);
if (IMAGE_ENABLE_TIMESTAMP) {
ret = fit_get_timestamp(fit, 0, ×tamp);
printf("%sCreated: ", p);
if (ret)
printf("unavailable\n");
else
genimg_print_time(timestamp);
}
/* Find images parent node offset */
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (images_noffset < 0) {
printf("Can't find images parent node '%s' (%s)\n",
FIT_IMAGES_PATH, fdt_strerror(images_noffset));
return;
}
/* Process its subnodes, print out component images details */
for (ndepth = 0, count = 0,
noffset = fdt_next_node(fit, images_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the images parent node,
* i.e. component image node.
*/
printf("%s Image %u (%s)\n", p, count++,
fit_get_name(fit, noffset, NULL));
fit_image_print(fit, noffset, p);
}
}
/* Find configurations parent node offset */
confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
if (confs_noffset < 0) {
debug("Can't get configurations parent node '%s' (%s)\n",
FIT_CONFS_PATH, fdt_strerror(confs_noffset));
return;
}
/* get default configuration unit name from default property */
uname = (char *)fdt_getprop(fit, noffset, FIT_DEFAULT_PROP, NULL);
if (uname)
printf("%s Default Configuration: '%s'\n", p, uname);
/* Process its subnodes, print out configurations details */
for (ndepth = 0, count = 0,
noffset = fdt_next_node(fit, confs_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the configurations parent node,
* i.e. configuration node.
*/
printf("%s Configuration %u (%s)\n", p, count++,
fit_get_name(fit, noffset, NULL));
fit_conf_print(fit, noffset, p);
}
}
}
static int nlm_fdt_read_ucore(char *page, char **start, off_t off,
int count, int *eof, void * data)
{
char path[128];
int node, src;
uint32_t blen, wlen;
uint8_t * buf;
int plen = 0, windex, _windex;
off_t begin = 0;
int srccount = 0;
working_fdt = (struct fdt_header *)fdt;
for(node = 0; node < 4; node++) {
for(src = 0; src < 32; src++) {
sprintf(path, "/soc/nae@node-%d/ucore/src@%d", node, src);
if ( fdt_path_offset (working_fdt, path) < 0 )
continue;
if ( copy_fdt_prop(working_fdt, path, "src-data-bytes",
PROP_CELL, &blen, sizeof(uint32_t)) <= 0 )
continue;
#ifndef __MIPSEL__
blen = fdt32_to_cpu(blen);
#endif
wlen = ((blen+4)/4)*4;
buf = (uint8_t *)kmalloc(sizeof(uint8_t)*wlen, GFP_KERNEL);
if ( !buf ) {
plen += sprintf(page + plen, "Unable to kmalloc 0x%x bytes for node-%d/src-%d\n",
wlen, node, src);
continue;
}
if ( copy_fdt_prop(working_fdt, path, "src-data",
PROP_CELL, buf, wlen) <= 0 ) {
plen += sprintf(page + plen, "Failed to copy source data for node-%d/src-%d\n",
node, src);
continue;
}
srccount++;
/* FIXME - do we need to handle little endian - wrap buf[windex] below with call to fdt32_to_cpu? */
plen += sprintf(page + plen, "/** -- BEGIN uCore src for %s -- **/\n", path);
for(windex = 0; windex < blen; windex++) {
#ifndef __MIPSEL__
_windex = windex;
#else
_windex = (windex & ~(0x3) ) | (3 - (windex & 0x3) );
#endif
plen += sprintf(page + plen, "%c", buf[_windex]);
}
if (!proc_pos_check(&begin, &plen, off, count)) goto out;
plen += sprintf(page + plen, "/** -- END uCore src for %s -- **/\n", path);
}
}
plen += sprintf(page + plen, "/** Total source files: %d **/\n", srccount);
*eof = 1;
out:
*start = page + (off - begin);
plen -= (off - begin);
if (plen > count)
plen = count;
if (plen < 0)
plen = 0;
return plen;
}
int zImage_arm_load(int argc, char **argv, const char *buf, off_t len,
struct kexec_info *info)
{
unsigned long base;
unsigned int atag_offset = 0x1000; /* 4k offset from memory start */
unsigned int offset = 0x8000; /* 32k offset from memory start */
unsigned int opt_ramdisk_addr;
unsigned int opt_atags_addr;
const char *command_line;
char *modified_cmdline = NULL;
off_t command_line_len;
const char *ramdisk;
char *ramdisk_buf;
int opt;
char *endptr;
int use_dtb;
const char *dtb_file;
char *dtb_buf;
off_t dtb_length;
off_t dtb_offset;
struct arm_mach *mach;
/* See options.h -- add any more there, too. */
static const struct option options[] = {
KEXEC_ARCH_OPTIONS
{ "command-line", 1, 0, OPT_APPEND },
{ "append", 1, 0, OPT_APPEND },
{ "initrd", 1, 0, OPT_RAMDISK },
{ "ramdisk", 1, 0, OPT_RAMDISK },
{ "dtb", 2, 0, OPT_DTB },
{ "rd-addr", 1, 0, OPT_RD_ADDR },
{ "atags-addr", 1, 0, OPT_ATAGS_ADDR },
{ "boardname", 1, 0, OPT_BOARDNAME },
{ 0, 0, 0, 0 },
};
static const char short_options[] = KEXEC_ARCH_OPT_STR "a:r:d::i:g:b:";
/*
* Parse the command line arguments
*/
command_line = 0;
command_line_len = 0;
ramdisk = 0;
ramdisk_buf = 0;
use_dtb = 0;
dtb_file = NULL;
opt_ramdisk_addr = 0;
opt_atags_addr = 0;
mach = NULL;
while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) {
switch(opt) {
default:
/* Ignore core options */
if (opt < OPT_ARCH_MAX) {
break;
}
case '?':
usage();
return -1;
case OPT_APPEND:
command_line = optarg;
break;
case OPT_RAMDISK:
ramdisk = optarg;
break;
case OPT_DTB:
use_dtb = 1;
if(optarg)
dtb_file = optarg;
break;
case OPT_RD_ADDR:
opt_ramdisk_addr = strtoul(optarg, &endptr, 0);
if (*endptr) {
fprintf(stderr,
"Bad option value in --rd-addr=%s\n",
optarg);
usage();
return -1;
}
break;
case OPT_ATAGS_ADDR:
opt_atags_addr = strtoul(optarg, &endptr, 0);
if (*endptr) {
fprintf(stderr,
"Bad option value in --atag-addr=%s\n",
optarg);
usage();
return -1;
}
break;
case OPT_BOARDNAME:
mach = arm_mach_choose(optarg);
if(!mach)
{
fprintf(stderr, "Unknown boardname '%s'!\n", optarg);
return -1;
}
break;
}
}
if (command_line) {
command_line_len = strlen(command_line) + 1;
if (command_line_len > COMMAND_LINE_SIZE)
command_line_len = COMMAND_LINE_SIZE;
}
if (ramdisk) {
ramdisk_buf = slurp_file(ramdisk, &initrd_size);
}
/*
* If we are loading a dump capture kernel, we need to update kernel
* command line and also add some additional segments.
*/
if (info->kexec_flags & KEXEC_ON_CRASH) {
uint64_t start, end;
modified_cmdline = xmalloc(COMMAND_LINE_SIZE);
if (!modified_cmdline)
return -1;
if (command_line) {
(void) strncpy(modified_cmdline, command_line,
COMMAND_LINE_SIZE);
modified_cmdline[COMMAND_LINE_SIZE - 1] = '\0';
}
if (load_crashdump_segments(info, modified_cmdline) < 0) {
free(modified_cmdline);
return -1;
}
command_line = modified_cmdline;
command_line_len = strlen(command_line) + 1;
/*
* We put the dump capture kernel at the start of crashkernel
* reserved memory.
*/
if (parse_iomem_single("Crash kernel\n", &start, &end)) {
/*
* No crash kernel memory reserved. We cannot do more
* but just bail out.
*/
return -1;
}
base = start;
} else {
base = locate_hole(info,len+offset,0,0,ULONG_MAX,INT_MAX);
}
if (base == ULONG_MAX)
return -1;
/* assume the maximum kernel compression ratio is 4,
* and just to be safe, place ramdisk after that
*/
if(opt_ramdisk_addr == 0)
initrd_base = _ALIGN(base + len * 4, getpagesize());
else
initrd_base = opt_ramdisk_addr;
if(!use_dtb)
{
if (atag_arm_load(info, base + atag_offset,
command_line, command_line_len,
ramdisk_buf, initrd_size, initrd_base) == -1)
return -1;
}
else
{
char *dtb_img = NULL;
off_t dtb_img_len = 0;
int free_dtb_img = 0;
int choose_res = 0;
int ret, off;
if(!mach)
{
fprintf(stderr, "DTB: --boardname was not specified.\n");
return -1;
}
if(dtb_file)
{
if(!load_dtb_image(dtb_file, &dtb_img, &dtb_img_len))
return -1;
printf("DTB: Using DTB from file %s\n", dtb_file);
free_dtb_img = 1;
}
else
{
if(!get_appended_dtb(buf, len, &dtb_img, &dtb_img_len))
return -1;
printf("DTB: Using DTB appended to zImage\n");
}
choose_res = (mach->choose_dtb)(dtb_img, dtb_img_len, &dtb_buf, &dtb_length);
if(free_dtb_img)
free(dtb_img);
if(!choose_res)
{
fprintf(stderr, "Failed to load DTB!\n");
return -1;
}
dtb_length = fdt_totalsize(dtb_buf) + DTB_PAD_SIZE;
dtb_buf = xrealloc(dtb_buf, dtb_length);
ret = fdt_open_into(dtb_buf, dtb_buf, dtb_length);
if(ret)
die("DTB: fdt_open_into failed");
ret = (mach->add_extra_regs)(dtb_buf);
if (ret < 0)
{
fprintf(stderr, "DTB: error while adding mach-specific extra regs\n");
return -1;
}
if (command_line) {
const char *node_name = "/chosen";
const char *prop_name = "bootargs";
/* check if a /choosen subnode already exists */
off = fdt_path_offset(dtb_buf, node_name);
if (off == -FDT_ERR_NOTFOUND)
off = fdt_add_subnode(dtb_buf, off, node_name);
if (off < 0) {
fprintf(stderr, "DTB: Error adding %s node.\n", node_name);
return -1;
}
if (fdt_setprop(dtb_buf, off, prop_name,
command_line, strlen(command_line) + 1) != 0) {
fprintf(stderr, "DTB: Error setting %s/%s property.\n",
node_name, prop_name);
return -1;
}
}
if(ramdisk)
{
const char *node_name = "/chosen";
uint32_t initrd_start, initrd_end;
/* check if a /choosen subnode already exists */
off = fdt_path_offset(dtb_buf, node_name);
if (off == -FDT_ERR_NOTFOUND)
off = fdt_add_subnode(dtb_buf, off, node_name);
if (off < 0) {
fprintf(stderr, "DTB: Error adding %s node.\n", node_name);
return -1;
}
initrd_start = cpu_to_fdt32(initrd_base);
initrd_end = cpu_to_fdt32(initrd_base + initrd_size);
ret = fdt_setprop(dtb_buf, off, "linux,initrd-start", &initrd_start, sizeof(initrd_start));
if (ret)
die("DTB: Error setting %s/linux,initrd-start property.\n", node_name);
ret = fdt_setprop(dtb_buf, off, "linux,initrd-end", &initrd_end, sizeof(initrd_end));
if (ret)
die("DTB: Error setting %s/linux,initrd-end property.\n", node_name);
}
fdt_pack(dtb_buf);
if(ramdisk)
{
add_segment(info, ramdisk_buf, initrd_size, initrd_base,
initrd_size);
}
if(opt_atags_addr != 0)
dtb_offset = opt_atags_addr;
else
{
dtb_offset = initrd_base + initrd_size + getpagesize();
dtb_offset = _ALIGN_DOWN(dtb_offset, getpagesize());
}
printf("DTB: add dtb segment 0x%x\n", (unsigned int)dtb_offset);
add_segment(info, dtb_buf, dtb_length,
dtb_offset, dtb_length);
}
add_segment(info, buf, len, base + offset, len);
info->entry = (void*)base + offset;
return 0;
}
/* VbExLegacy calls a payload (e.g. SeaBIOS) from an alternate CBFS
* that lives in the RW section if CTRL-L is pressed at the dev screen.
* FIXME: Right now no verification is done what so ever!
*/
int VbExLegacy(void)
{
CbfsFile payload;
int legacy_node, flash_node;
u32 flash_base, legacy_offset, legacy_length;
u32 reg[2];
flash_node = fdt_path_offset(gd->fdt_blob, "/flash");
if (flash_node < 0) {
printf("Could not find /flash in FDT\n");
return 1;
}
legacy_node = fdt_path_offset(gd->fdt_blob, "/flash/rw-legacy");
if (!legacy_node) {
printf("Could not find /flash/rw-legacy in FDT\n");
return 1;
}
if (fdtdec_get_int_array(gd->fdt_blob, flash_node, "reg", reg, 2)) {
printf("Error decoding reg property of /flash\n");
return 1;
}
flash_base = reg[0];
if (fdtdec_get_int_array(gd->fdt_blob, legacy_node, "reg", reg, 2)) {
printf("Error decoding reg property of /flash/rw-legacy\n");
return 1;
}
legacy_offset = reg[0];
legacy_length = reg[1];
/* Point to alternate CBFS */
file_cbfs_init(flash_base + legacy_offset + legacy_length - 1);
/* For debugging, show the contents of our CBFS */
do_cbfs_ls(NULL, 0, 0, NULL);
/* Look for a payload named "payload" */
payload = file_cbfs_find("payload");
if (!payload) {
printf("No file \"payload\" found in CBFS.\n");
return 1;
}
/* This is a minimalistic SELF parser. */
CbfsPayloadSegment *seg = payload->data;
while (1) {
void (*payload_entry)(void);
void *src = payload->data + be32_to_cpu(seg->offset);
void *dst = (void *)(unsigned long)be64_to_cpu(seg->load_addr);
u32 src_len = be32_to_cpu(seg->len);
u32 dst_len = be32_to_cpu(seg->mem_len);
switch (seg->type) {
case PAYLOAD_SEGMENT_CODE:
case PAYLOAD_SEGMENT_DATA:
printf("CODE/DATA: dst=%p dst_len=%d src=%p "
"src_len=%d\n", dst, dst_len, src, src_len);
if (be32_to_cpu(seg->compression) ==
CBFS_COMPRESS_NONE) {
memcpy(dst, src, src_len);
} else
#ifdef CONFIG_LZMA
if (be32_to_cpu(seg->compression) ==
CBFS_COMPRESS_LZMA) {
int ret;
SizeT lzma_len = dst_len;
ret = lzmaBuffToBuffDecompress(
(unsigned char *)dst, &lzma_len,
(unsigned char *)src, src_len);
if (ret != SZ_OK) {
printf("LZMA: Decompression failed. "
"ret=%d.\n", ret);
return 1;
}
} else
#endif
{
printf("Compression type %x not supported\n",
be32_to_cpu(seg->compression));
return 1;
}
break;
case PAYLOAD_SEGMENT_BSS:
printf("BSS: dst=%p len=%d\n", dst, dst_len);
memset(dst, 0, dst_len);
break;
case PAYLOAD_SEGMENT_PARAMS:
printf("PARAMS: skipped\n");
break;
case PAYLOAD_SEGMENT_ENTRY:
board_final_cleanup();
TlclSaveState();
payload_entry = dst;
payload_entry();
return 0;
default:
printf("segment type %x not implemented. Exiting\n",
seg->type);
return 1;
}
seg++;
}
/* Make GCC happy. This point is never reached. */
return 0;
}
/*
* Flattened Device Tree command, see the help for parameter definitions.
*/
int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
if (argc < 2) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/********************************************************************
* Set the address of the fdt
********************************************************************/
if (argv[1][0] == 'a') {
unsigned long addr;
/*
* Set the address [and length] of the fdt.
*/
if (argc == 2) {
if (!fdt_valid()) {
return 1;
}
printf("The address of the fdt is %p\n", working_fdt);
return 0;
}
addr = simple_strtoul(argv[2], NULL, 16);
set_working_fdt_addr((void *)addr);
if (!fdt_valid()) {
return 1;
}
if (argc >= 4) {
int len;
int err;
/*
* Optional new length
*/
len = simple_strtoul(argv[3], NULL, 16);
if (len < fdt_totalsize(working_fdt)) {
printf ("New length %d < existing length %d, "
"ignoring.\n",
len, fdt_totalsize(working_fdt));
} else {
/*
* Open in place with a new length.
*/
err = fdt_open_into(working_fdt, working_fdt, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
}
}
}
/********************************************************************
* Move the working_fdt
********************************************************************/
} else if (strncmp(argv[1], "mo", 2) == 0) {
struct fdt_header *newaddr;
int len;
int err;
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* Set the address and length of the fdt.
*/
working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16);
/*
* If the user specifies a length, use that. Otherwise use the
* current length.
*/
if (argc <= 4) {
len = fdt_totalsize(working_fdt);
} else {
len = simple_strtoul(argv[4], NULL, 16);
if (len < fdt_totalsize(working_fdt)) {
printf ("New length 0x%X < existing length "
"0x%X, aborting.\n",
len, fdt_totalsize(working_fdt));
return 1;
}
}
/*
* Copy to the new location.
*/
err = fdt_open_into(working_fdt, newaddr, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
return 1;
}
working_fdt = newaddr;
/********************************************************************
* Make a new node
********************************************************************/
} else if (strncmp(argv[1], "mk", 2) == 0) {
char *pathp; /* path */
char *nodep; /* new node to add */
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Parameters: Node path, new node to be appended to the path.
*/
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
nodep = argv[3];
nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
err = fdt_add_subnode(working_fdt, nodeoffset, nodep);
if (err < 0) {
printf ("libfdt fdt_add_subnode(): %s\n",
fdt_strerror(err));
return 1;
}
/********************************************************************
* Set the value of a property in the working_fdt.
********************************************************************/
} else if (argv[1][0] == 's') {
char *pathp; /* path */
char *prop; /* property */
int nodeoffset; /* node offset from libfdt */
static char data[SCRATCHPAD]; /* storage for the property */
int len; /* new length of the property */
int ret; /* return value */
/*
* Parameters: Node path, property, optional value.
*/
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
prop = argv[3];
if (argc == 4) {
len = 0;
} else {
ret = fdt_parse_prop(&argv[4], argc - 4, data, &len);
if (ret != 0)
return ret;
}
nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len);
if (ret < 0) {
printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret));
return 1;
}
/********************************************************************
* Print (recursive) / List (single level)
********************************************************************/
} else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) {
int depth = MAX_LEVEL; /* how deep to print */
char *pathp; /* path */
char *prop; /* property */
int ret; /* return value */
static char root[2] = "/";
/*
* list is an alias for print, but limited to 1 level
*/
if (argv[1][0] == 'l') {
depth = 1;
}
/*
* Get the starting path. The root node is an oddball,
* the offset is zero and has no name.
*/
if (argc == 2)
pathp = root;
else
pathp = argv[2];
if (argc > 3)
prop = argv[3];
else
prop = NULL;
ret = fdt_print(pathp, prop, depth);
if (ret != 0)
return ret;
/********************************************************************
* Remove a property/node
********************************************************************/
} else if (strncmp(argv[1], "rm", 2) == 0) {
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Get the path. The root node is an oddball, the offset
* is zero and has no name.
*/
nodeoffset = fdt_path_offset (working_fdt, argv[2]);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
/*
* Do the delete. A fourth parameter means delete a property,
* otherwise delete the node.
*/
if (argc > 3) {
err = fdt_delprop(working_fdt, nodeoffset, argv[3]);
if (err < 0) {
printf("libfdt fdt_delprop(): %s\n",
fdt_strerror(err));
return err;
}
} else {
err = fdt_del_node(working_fdt, nodeoffset);
if (err < 0) {
printf("libfdt fdt_del_node(): %s\n",
fdt_strerror(err));
return err;
}
}
/********************************************************************
* Display header info
********************************************************************/
} else if (argv[1][0] == 'h') {
u32 version = fdt_version(working_fdt);
printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt));
printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt),
fdt_totalsize(working_fdt));
printf("off_dt_struct:\t\t0x%x\n",
fdt_off_dt_struct(working_fdt));
printf("off_dt_strings:\t\t0x%x\n",
fdt_off_dt_strings(working_fdt));
printf("off_mem_rsvmap:\t\t0x%x\n",
fdt_off_mem_rsvmap(working_fdt));
printf("version:\t\t%d\n", version);
printf("last_comp_version:\t%d\n",
fdt_last_comp_version(working_fdt));
if (version >= 2)
printf("boot_cpuid_phys:\t0x%x\n",
fdt_boot_cpuid_phys(working_fdt));
if (version >= 3)
printf("size_dt_strings:\t0x%x\n",
fdt_size_dt_strings(working_fdt));
if (version >= 17)
printf("size_dt_struct:\t\t0x%x\n",
fdt_size_dt_struct(working_fdt));
printf("number mem_rsv:\t\t0x%x\n",
fdt_num_mem_rsv(working_fdt));
printf("\n");
/********************************************************************
* Set boot cpu id
********************************************************************/
} else if (strncmp(argv[1], "boo", 3) == 0) {
unsigned long tmp = simple_strtoul(argv[2], NULL, 16);
fdt_set_boot_cpuid_phys(working_fdt, tmp);
/********************************************************************
* memory command
********************************************************************/
} else if (strncmp(argv[1], "me", 2) == 0) {
uint64_t addr, size;
int err;
#ifdef CONFIG_SYS_64BIT_STRTOUL
addr = simple_strtoull(argv[2], NULL, 16);
size = simple_strtoull(argv[3], NULL, 16);
#else
addr = simple_strtoul(argv[2], NULL, 16);
size = simple_strtoul(argv[3], NULL, 16);
#endif
err = fdt_fixup_memory(working_fdt, addr, size);
if (err < 0)
return err;
/********************************************************************
* mem reserve commands
********************************************************************/
} else if (strncmp(argv[1], "rs", 2) == 0) {
if (argv[2][0] == 'p') {
uint64_t addr, size;
int total = fdt_num_mem_rsv(working_fdt);
int j, err;
printf("index\t\t start\t\t size\n");
printf("-------------------------------"
"-----------------\n");
for (j = 0; j < total; j++) {
err = fdt_get_mem_rsv(working_fdt, j, &addr, &size);
if (err < 0) {
printf("libfdt fdt_get_mem_rsv(): %s\n",
fdt_strerror(err));
return err;
}
printf(" %x\t%08x%08x\t%08x%08x\n", j,
(u32)(addr >> 32),
(u32)(addr & 0xffffffff),
(u32)(size >> 32),
(u32)(size & 0xffffffff));
}
} else if (argv[2][0] == 'a') {
int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
{
int sectors;
ulong size, load;
unsigned long count;
int node, images;
void *load_ptr;
int fdt_offset, fdt_len;
int data_offset, data_size;
int base_offset, align_len = ARCH_DMA_MINALIGN - 1;
int src_sector;
void *dst, *src;
/*
* Figure out where the external images start. This is the base for the
* data-offset properties in each image.
*/
size = fdt_totalsize(fit);
size = (size + 3) & ~3;
base_offset = (size + 3) & ~3;
/*
* So far we only have one block of data from the FIT. Read the entire
* thing, including that first block, placing it so it finishes before
* where we will load the image.
*
* Note that we will load the image such that its first byte will be
* at the load address. Since that byte may be part-way through a
* block, we may load the image up to one block before the load
* address. So take account of that here by subtracting an addition
* block length from the FIT start position.
*
* In fact the FIT has its own load address, but we assume it cannot
* be before CONFIG_SYS_TEXT_BASE.
*/
fit = (void *)((CONFIG_SYS_TEXT_BASE - size - info->bl_len -
align_len) & ~align_len);
sectors = get_aligned_image_size(info, size, 0);
count = info->read(info, sector, sectors, fit);
debug("fit read sector %lx, sectors=%d, dst=%p, count=%lu\n",
sector, sectors, fit, count);
if (count == 0)
return -EIO;
/* find the firmware image to load */
images = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (images < 0) {
debug("%s: Cannot find /images node: %d\n", __func__, images);
return -1;
}
node = fdt_first_subnode(fit, images);
if (node < 0) {
debug("%s: Cannot find first image node: %d\n", __func__, node);
return -1;
}
/* Get its information and set up the spl_image structure */
data_offset = fdt_getprop_u32(fit, node, "data-offset");
data_size = fdt_getprop_u32(fit, node, "data-size");
load = fdt_getprop_u32(fit, node, "load");
debug("data_offset=%x, data_size=%x\n", data_offset, data_size);
spl_image.load_addr = load;
spl_image.entry_point = load;
spl_image.os = IH_OS_U_BOOT;
/*
* Work out where to place the image. We read it so that the first
* byte will be at 'load'. This may mean we need to load it starting
* before then, since we can only read whole blocks.
*/
data_offset += base_offset;
sectors = get_aligned_image_size(info, data_size, data_offset);
load_ptr = (void *)load;
debug("U-Boot size %x, data %p\n", data_size, load_ptr);
dst = load_ptr;
/* Read the image */
src_sector = sector + get_aligned_image_offset(info, data_offset);
debug("Aligned image read: dst=%p, src_sector=%x, sectors=%x\n",
dst, src_sector, sectors);
count = info->read(info, src_sector, sectors, dst);
if (count != sectors)
return -EIO;
debug("image: dst=%p, data_offset=%x, size=%x\n", dst, data_offset,
data_size);
src = dst + get_aligned_image_overhead(info, data_offset);
#ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS
board_fit_image_post_process((void **)&src, (size_t *)&data_size);
#endif
memcpy(dst, src, data_size);
/* Figure out which device tree the board wants to use */
fdt_len = spl_fit_select_fdt(fit, images, &fdt_offset);
if (fdt_len < 0)
return fdt_len;
/*
* Read the device tree and place it after the image. There may be
* some extra data before it since we can only read entire blocks.
* And also align the destination address to ARCH_DMA_MINALIGN.
*/
dst = (void *)((load + data_size + align_len) & ~align_len);
fdt_offset += base_offset;
sectors = get_aligned_image_size(info, fdt_len, fdt_offset);
src_sector = sector + get_aligned_image_offset(info, fdt_offset);
count = info->read(info, src_sector, sectors, dst);
debug("Aligned fdt read: dst %p, src_sector = %x, sectors %x\n",
dst, src_sector, sectors);
if (count != sectors)
return -EIO;
/*
* Copy the device tree so that it starts immediately after the image.
* After this we will have the U-Boot image and its device tree ready
* for us to start.
*/
debug("fdt: dst=%p, data_offset=%x, size=%x\n", dst, fdt_offset,
fdt_len);
src = dst + get_aligned_image_overhead(info, fdt_offset);
dst = load_ptr + data_size;
#ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS
board_fit_image_post_process((void **)&src, (size_t *)&fdt_len);
#endif
memcpy(dst, src, fdt_len);
return 0;
}
static int spl_fit_select_fdt(const void *fdt, int images, int *fdt_offsetp)
{
const char *name, *fdt_name;
int conf, node, fdt_node;
int len;
*fdt_offsetp = 0;
conf = fdt_path_offset(fdt, FIT_CONFS_PATH);
if (conf < 0) {
debug("%s: Cannot find /configurations node: %d\n", __func__,
conf);
return -EINVAL;
}
for (node = fdt_first_subnode(fdt, conf);
node >= 0;
node = fdt_next_subnode(fdt, node)) {
name = fdt_getprop(fdt, node, "description", &len);
if (!name) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("%s: Missing FDT description in DTB\n",
__func__);
#endif
return -EINVAL;
}
if (board_fit_config_name_match(name))
continue;
debug("Selecting config '%s'", name);
fdt_name = fdt_getprop(fdt, node, FIT_FDT_PROP, &len);
if (!fdt_name) {
debug("%s: Cannot find fdt name property: %d\n",
__func__, len);
return -EINVAL;
}
debug(", fdt '%s'\n", fdt_name);
fdt_node = fdt_subnode_offset(fdt, images, fdt_name);
if (fdt_node < 0) {
debug("%s: Cannot find fdt node '%s': %d\n",
__func__, fdt_name, fdt_node);
return -EINVAL;
}
*fdt_offsetp = fdt_getprop_u32(fdt, fdt_node, "data-offset");
len = fdt_getprop_u32(fdt, fdt_node, "data-size");
debug("FIT: Selected '%s'\n", name);
return len;
}
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("No matching DT out of these options:\n");
for (node = fdt_first_subnode(fdt, conf);
node >= 0;
node = fdt_next_subnode(fdt, node)) {
name = fdt_getprop(fdt, node, "description", &len);
printf(" %s\n", name);
}
#endif
return -ENOENT;
}
//__attribute__((no_sanitize("all")))
void kernel_start(uintptr_t magic, uintptr_t addrin)
{
kprintf("Magic %zx addrin %zx\n",magic,addrin);
__init_sanity_checks();
cpu_print_current_el();
//its a "RAM address 0"
const struct fdt_property *prop;
int addr_cells = 0, size_cells = 0;
int proplen;
//TODO find this somewhere ?.. although it is at memory 0x00
uint64_t fdt_addr=0x40000000;
char *fdt=(char*)fdt_addr;
//OK so these get overidden in the for loop which should return a map of memory and not just a single one
uint64_t addr = 0;
uint64_t size = 0;
//checks both magic and version
if ( fdt_check_header(fdt) != 0 )
{
kprint("FDT Header check failed\r\n");
return;
}
size_cells = fdt_size_cells(fdt,0);
print_le_named32("size_cells :",(char *)&size_cells);
addr_cells = fdt_address_cells(fdt, 0);//fdt32_ld((const fdt32_t *)prop->data);
print_le_named32("addr_cells :",(char *)&addr_cells);
const int mem_offset = fdt_path_offset(fdt, "/memory");
if (mem_offset < 0)
return;
print_le_named32("mem_offset :",(char *)&mem_offset);
prop = fdt_get_property(fdt, mem_offset, "reg", &proplen);
int cellslen = (int)sizeof(uint32_t) * (addr_cells + size_cells);
for (int i = 0; i < proplen / cellslen; ++i) {
for (int j = 0; j < addr_cells; ++j) {
int offset = (cellslen * i) + (sizeof(uint32_t) * j);
addr |= (uint64_t)fdt32_ld((const fdt32_t *)((char *)prop->data + offset)) <<
((addr_cells - j - 1) * 32);
}
for (int j = 0; j < size_cells; ++j) {
int offset = (cellslen * i) +
(sizeof(uint32_t) * (j + addr_cells));
size |= (uint64_t)fdt32_ld((const fdt32_t *)((char *)prop->data + offset)) <<
((size_cells - j - 1) * 32);
}
}
print_le_named64("RAM BASE :",(char *)&addr);
print_le_named64("RAM SIZE :",(char *)&size);
uint64_t mem_end=addr+size;
extern char _end;
uintptr_t free_mem_begin = reinterpret_cast<uintptr_t>(&_end);
//ok now its sane
free_mem_begin += _move_symbols(free_mem_begin);
// Initialize .bss
_init_bss();
// Instantiate machine
size_t memsize = mem_end - free_mem_begin;
__machine = os::Machine::create((void*)free_mem_begin, memsize);
_init_elf_parser();
// Begin portable HAL initialization
__machine->init();
// Initialize system calls
_init_syscalls();
//probably not very sane!
cpu_debug_enable();
cpu_fiq_enable();
cpu_irq_enable();
cpu_serror_enable();
aarch64::init_libc((uintptr_t)fdt_addr);
}
int load_fit(const struct fit_loader *ldr, const char *filename, void *opaque)
{
const struct fit_loader_match *match;
const void *itb, *match_data = NULL;
const char *def_cfg_name;
char path[FIT_LOADER_MAX_PATH];
int itb_size, configs, cfg_off, off, err;
hwaddr kernel_end;
int ret;
itb = load_device_tree(filename, &itb_size);
if (!itb) {
return -EINVAL;
}
configs = fdt_path_offset(itb, "/configurations");
if (configs < 0) {
ret = configs;
goto out;
}
cfg_off = -FDT_ERR_NOTFOUND;
if (ldr->matches) {
for (match = ldr->matches; match->compatible; match++) {
off = fdt_first_subnode(itb, configs);
while (off >= 0) {
if (fit_cfg_compatible(itb, off, match->compatible)) {
cfg_off = off;
match_data = match->data;
break;
}
off = fdt_next_subnode(itb, off);
}
if (cfg_off >= 0) {
break;
}
}
}
if (cfg_off < 0) {
def_cfg_name = fdt_getprop(itb, configs, "default", NULL);
if (def_cfg_name) {
snprintf(path, sizeof(path), "/configurations/%s", def_cfg_name);
cfg_off = fdt_path_offset(itb, path);
}
}
if (cfg_off < 0) {
/* couldn't find a configuration to use */
ret = cfg_off;
goto out;
}
err = fit_load_kernel(ldr, itb, cfg_off, opaque, &kernel_end);
if (err) {
ret = err;
goto out;
}
err = fit_load_fdt(ldr, itb, cfg_off, opaque, match_data, kernel_end);
if (err) {
ret = err;
goto out;
}
ret = 0;
out:
g_free((void *) itb);
return ret;
}
static void *fdt_wrapper_finddevice(const char *path)
{
return offset_devp(fdt_path_offset(fdt, path));
}
static int dev_tree_compatible(void *dtb, uint32_t dtb_size, struct dt_entry_node *dtb_list)
{
int root_offset;
const void *prop = NULL;
const char *plat_prop = NULL;
const char *board_prop = NULL;
const char *pmic_prop = NULL;
char *model = NULL;
struct dt_entry *cur_dt_entry;
struct dt_entry *dt_entry_array = NULL;
struct board_id *board_data = NULL;
struct plat_id *platform_data = NULL;
struct pmic_id *pmic_data = NULL;
int len;
int len_board_id;
int len_plat_id;
int min_plat_id_len = 0;
int len_pmic_id;
uint32_t dtb_ver;
uint32_t num_entries = 0;
uint32_t i, j, k, n;
uint32_t msm_data_count;
uint32_t board_data_count;
uint32_t pmic_data_count;
root_offset = fdt_path_offset(dtb, "/");
if (root_offset < 0)
return false;
prop = fdt_getprop(dtb, root_offset, "model", &len);
if (prop && len > 0) {
model = (char *) malloc(sizeof(char) * len);
ASSERT(model);
strlcpy(model, prop, len);
} else {
dprintf(INFO, "model does not exist in device tree\n");
}
/* Find the pmic-id prop from DTB , if pmic-id is present then
* the DTB is version 3, otherwise find the board-id prop from DTB ,
* if board-id is present then the DTB is version 2 */
pmic_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,pmic-id", &len_pmic_id);
board_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,board-id", &len_board_id);
if (pmic_prop && (len_pmic_id > 0) && board_prop && (len_board_id > 0)) {
if ((len_pmic_id % PMIC_ID_SIZE) || (len_board_id % BOARD_ID_SIZE))
{
dprintf(CRITICAL, "qcom,pmic-id(%d) or qcom,board-id(%d) in device tree is not a multiple of (%d %d)\n",
len_pmic_id, len_board_id, PMIC_ID_SIZE, BOARD_ID_SIZE);
return false;
}
dtb_ver = DEV_TREE_VERSION_V3;
min_plat_id_len = PLAT_ID_SIZE;
} else if (board_prop && len_board_id > 0) {
if (len_board_id % BOARD_ID_SIZE)
{
dprintf(CRITICAL, "qcom,board-id in device tree is (%d) not a multiple of (%d)\n",
len_board_id, BOARD_ID_SIZE);
return false;
}
dtb_ver = DEV_TREE_VERSION_V2;
min_plat_id_len = PLAT_ID_SIZE;
} else {
dtb_ver = DEV_TREE_VERSION_V1;
min_plat_id_len = DT_ENTRY_V1_SIZE;
}
/* Get the msm-id prop from DTB */
plat_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,msm-id", &len_plat_id);
if (!plat_prop || len_plat_id <= 0) {
dprintf(INFO, "qcom,msm-id entry not found\n");
return false;
} else if (len_plat_id % min_plat_id_len) {
dprintf(INFO, "qcom,msm-id in device tree is (%d) not a multiple of (%d)\n",
len_plat_id, min_plat_id_len);
return false;
}
/*
* If DTB version is '1' look for <x y z> pair in the DTB
* x: platform_id
* y: variant_id
* z: SOC rev
*/
if (dtb_ver == DEV_TREE_VERSION_V1) {
cur_dt_entry = (struct dt_entry *)
malloc(sizeof(struct dt_entry));
if (!cur_dt_entry) {
dprintf(CRITICAL, "Out of memory\n");
return false;
}
memset(cur_dt_entry, 0, sizeof(struct dt_entry));
while (len_plat_id) {
cur_dt_entry->platform_id = fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->platform_id);
cur_dt_entry->variant_id = fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->variant_id);
cur_dt_entry->soc_rev = fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->soc_rev);
cur_dt_entry->board_hw_subtype =
fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->variant_id) >> 0x18;
cur_dt_entry->pmic_rev[0] = board_pmic_target(0);
cur_dt_entry->pmic_rev[1] = board_pmic_target(1);
cur_dt_entry->pmic_rev[2] = board_pmic_target(2);
cur_dt_entry->pmic_rev[3] = board_pmic_target(3);
cur_dt_entry->offset = (uint32_t)dtb;
cur_dt_entry->size = dtb_size;
dprintf(SPEW, "Found an appended flattened device tree (%s - %u %u 0x%x)\n",
*model ? model : "unknown",
cur_dt_entry->platform_id, cur_dt_entry->variant_id, cur_dt_entry->soc_rev);
if (platform_dt_absolute_match(cur_dt_entry, dtb_list)) {
dprintf(SPEW, "Device tree exact match the board: <%u %u 0x%x> != <%u %u 0x%x>\n",
cur_dt_entry->platform_id,
cur_dt_entry->variant_id,
cur_dt_entry->soc_rev,
board_platform_id(),
board_hardware_id(),
board_soc_version());
} else {
dprintf(SPEW, "Device tree's msm_id doesn't match the board: <%u %u 0x%x> != <%u %u 0x%x>\n",
cur_dt_entry->platform_id,
cur_dt_entry->variant_id,
cur_dt_entry->soc_rev,
board_platform_id(),
board_hardware_id(),
board_soc_version());
plat_prop += DT_ENTRY_V1_SIZE;
len_plat_id -= DT_ENTRY_V1_SIZE;
continue;
}
}
free(cur_dt_entry);
}
void update_partial_goods_dtb_nodes(void *fdt)
{
int i;
int tbl_sz = sizeof(table) / sizeof(struct partial_goods);
int parent_offset = 0;
int subnode_offset = 0;
int ret = 0;
int prop_len = 0;
uint32_t reg = readl(QFPROM_PTE_PART_ADDR);
uint32_t prop_type = 0;
struct subnode_list *subnode_lst = NULL;
const struct fdt_property *prop = NULL;
const char *replace_str = NULL;
/*
* The PTE register bits 23 to 27 have the partial goods
* info, extract the partial goods value before using
*/
reg = (reg & 0x0f800000) >> 23;
/* If none of the DTB needs update */
if (!reg)
return;
ret = fdt_open_into(fdt, fdt, fdt_totalsize(fdt));
if (ret != 0)
{
dprintf(CRITICAL, "Failed to move/resize dtb buffer: %d\n", ret);
ASSERT(0);
}
for (i = 0; i < tbl_sz; i++)
{
if (reg == table[i].val)
{
/* Find the Parent node */
ret = fdt_path_offset(fdt, table[i].parent_node);
if (ret < 0)
{
dprintf(CRITICAL, "Failed to get parent node: %s\terrno:%d\n", table[i].parent_node, ret);
ASSERT(0);
}
parent_offset = ret;
/* Find the subnode */
subnode_lst = table[i].subnode;
while (subnode_lst->subnode)
{
ret = fdt_subnode_offset(fdt, parent_offset, subnode_lst->subnode);
if (ret < 0)
{
dprintf(CRITICAL, "Failed to get subnode: %s\terrno:%d\n", subnode_lst->subnode, ret);
ASSERT(0);
}
subnode_offset = ret;
/* Find the property node and its length */
prop = fdt_get_property(fdt, subnode_offset, subnode_lst->property, &prop_len);
if (!prop)
{
dprintf(CRITICAL, "Failed to get property: %s\terrno: %d\n", subnode_lst->property, prop_len);
ASSERT(0);
}
/*
* Replace the property value based on the property
* length and type
*/
if (!(strncmp(subnode_lst->property, "device_type", sizeof(subnode_lst->property))))
prop_type = DEVICE_TYPE;
else if ((!strncmp(subnode_lst->property, "status", sizeof(subnode_lst->property))))
prop_type = STATUS_TYPE;
else
{
dprintf(CRITICAL, "%s: Property type is not supported\n", subnode_lst->property);
ASSERT(0);
}
switch (prop_type)
{
case DEVICE_TYPE:
replace_str = "nak";
break;
case STATUS_TYPE:
if (prop_len == sizeof("ok"))
replace_str = "no";
else if (prop_len == sizeof("okay"))
replace_str = "dsbl";
else
{
dprintf(CRITICAL, "Property value length: %u is invalid for property: %s\n", prop_len, subnode_lst->property);
ASSERT(0);
}
break;
default:
/* Control would not come here, as this gets taken care while setting property type */
break;
};
/* Replace the property with new value */
ret = fdt_setprop_inplace(fdt, subnode_offset, subnode_lst->property, (const void *)replace_str, prop_len);
if (!ret)
dprintf(INFO, "Updated device tree property: %s @ %s node\n", subnode_lst->property, subnode_lst->subnode);
else
{
dprintf(CRITICAL, "Failed to update property: %s: error no: %d\n", subnode_lst->property, ret);
ASSERT(0);
}
subnode_lst++;
}
}
}
fdt_pack(fdt);
}
int fdt_chosen(void *fdt, int force)
{
int nodeoffset;
int err;
char *str; /* used to set string properties */
const char *path;
err = fdt_check_header(fdt);
if (err < 0) {
printf("fdt_chosen: %s\n", fdt_strerror(err));
return err;
}
/*
* Find the "chosen" node.
*/
nodeoffset = fdt_path_offset (fdt, "/chosen");
/*
* If there is no "chosen" node in the blob, create it.
*/
if (nodeoffset < 0) {
/*
* Create a new node "/chosen" (offset 0 is root level)
*/
nodeoffset = fdt_add_subnode(fdt, 0, "chosen");
if (nodeoffset < 0) {
printf("WARNING: could not create /chosen %s.\n",
fdt_strerror(nodeoffset));
return nodeoffset;
}
}
/*
* Create /chosen properites that don't exist in the fdt.
* If the property exists, update it only if the "force" parameter
* is true.
*/
str = getenv("bootargs");
if (str != NULL) {
path = fdt_getprop(fdt, nodeoffset, "bootargs", NULL);
if ((path == NULL) || force) {
err = fdt_setprop(fdt, nodeoffset,
"bootargs", str, strlen(str)+1);
if (err < 0)
printf("WARNING: could not set bootargs %s.\n",
fdt_strerror(err));
}
}
#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
if ((path == NULL) || force)
err = fdt_fixup_stdout(fdt, nodeoffset);
#endif
#ifdef OF_STDOUT_PATH
path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
if ((path == NULL) || force) {
err = fdt_setprop(fdt, nodeoffset,
"linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1);
if (err < 0)
printf("WARNING: could not set linux,stdout-path %s.\n",
fdt_strerror(err));
}
#endif
return err;
}
int spl_load_simple_fit(struct spl_image_info *spl_image,
struct spl_load_info *info, ulong sector, void *fit)
{
int sectors;
ulong size;
unsigned long count;
struct spl_image_info image_info;
int node = -1;
int images, ret;
int base_offset, hsize, align_len = ARCH_DMA_MINALIGN - 1;
int index = 0;
/*
* For FIT with external data, figure out where the external images
* start. This is the base for the data-offset properties in each
* image.
*/
size = fdt_totalsize(fit);
size = (size + 3) & ~3;
size = board_spl_fit_size_align(size);
base_offset = (size + 3) & ~3;
/*
* So far we only have one block of data from the FIT. Read the entire
* thing, including that first block, placing it so it finishes before
* where we will load the image.
*
* Note that we will load the image such that its first byte will be
* at the load address. Since that byte may be part-way through a
* block, we may load the image up to one block before the load
* address. So take account of that here by subtracting an addition
* block length from the FIT start position.
*
* In fact the FIT has its own load address, but we assume it cannot
* be before CONFIG_SYS_TEXT_BASE.
*
* For FIT with data embedded, data is loaded as part of FIT image.
* For FIT with external data, data is not loaded in this step.
*/
hsize = (size + info->bl_len + align_len) & ~align_len;
fit = spl_get_load_buffer(-hsize, hsize);
sectors = get_aligned_image_size(info, size, 0);
count = info->read(info, sector, sectors, fit);
debug("fit read sector %lx, sectors=%d, dst=%p, count=%lu, size=0x%lx\n",
sector, sectors, fit, count, size);
if (count == 0)
return -EIO;
/* find the node holding the images information */
images = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (images < 0) {
debug("%s: Cannot find /images node: %d\n", __func__, images);
return -1;
}
#ifdef CONFIG_SPL_FPGA_SUPPORT
node = spl_fit_get_image_node(fit, images, "fpga", 0);
if (node >= 0) {
/* Load the image and set up the spl_image structure */
ret = spl_load_fit_image(info, sector, fit, base_offset, node,
spl_image);
if (ret) {
printf("%s: Cannot load the FPGA: %i\n", __func__, ret);
return ret;
}
debug("FPGA bitstream at: %x, size: %x\n",
(u32)spl_image->load_addr, spl_image->size);
ret = fpga_load(0, (const void *)spl_image->load_addr,
spl_image->size, BIT_FULL);
if (ret) {
printf("%s: Cannot load the image to the FPGA\n",
__func__);
return ret;
}
puts("FPGA image loaded from FIT\n");
node = -1;
}
#endif
/*
* Find the U-Boot image using the following search order:
* - start at 'firmware' (e.g. an ARM Trusted Firmware)
* - fall back 'kernel' (e.g. a Falcon-mode OS boot
* - fall back to using the first 'loadables' entry
*/
if (node < 0)
node = spl_fit_get_image_node(fit, images, FIT_FIRMWARE_PROP,
0);
#ifdef CONFIG_SPL_OS_BOOT
if (node < 0)
node = spl_fit_get_image_node(fit, images, FIT_KERNEL_PROP, 0);
#endif
if (node < 0) {
debug("could not find firmware image, trying loadables...\n");
node = spl_fit_get_image_node(fit, images, "loadables", 0);
/*
* If we pick the U-Boot image from "loadables", start at
* the second image when later loading additional images.
*/
index = 1;
}
if (node < 0) {
debug("%s: Cannot find u-boot image node: %d\n",
__func__, node);
return -1;
}
/* Load the image and set up the spl_image structure */
ret = spl_load_fit_image(info, sector, fit, base_offset, node,
spl_image);
if (ret)
return ret;
/*
* For backward compatibility, we treat the first node that is
* as a U-Boot image, if no OS-type has been declared.
*/
if (!spl_fit_image_get_os(fit, node, &spl_image->os))
debug("Image OS is %s\n", genimg_get_os_name(spl_image->os));
#if !defined(CONFIG_SPL_OS_BOOT)
else
spl_image->os = IH_OS_U_BOOT;
#endif
/*
* Booting a next-stage U-Boot may require us to append the FDT.
* We allow this to fail, as the U-Boot image might embed its FDT.
*/
if (spl_image->os == IH_OS_U_BOOT)
spl_fit_append_fdt(spl_image, info, sector, fit,
images, base_offset);
/* Now check if there are more images for us to load */
for (; ; index++) {
uint8_t os_type = IH_OS_INVALID;
node = spl_fit_get_image_node(fit, images, "loadables", index);
if (node < 0)
break;
ret = spl_load_fit_image(info, sector, fit, base_offset, node,
&image_info);
if (ret < 0)
continue;
if (!spl_fit_image_get_os(fit, node, &os_type))
debug("Loadable is %s\n", genimg_get_os_name(os_type));
if (os_type == IH_OS_U_BOOT) {
spl_fit_append_fdt(&image_info, info, sector,
fit, images, base_offset);
spl_image->fdt_addr = image_info.fdt_addr;
}
/*
* If the "firmware" image did not provide an entry point,
* use the first valid entry point from the loadables.
*/
if (spl_image->entry_point == FDT_ERROR &&
image_info.entry_point != FDT_ERROR)
spl_image->entry_point = image_info.entry_point;
/* Record our loadables into the FDT */
if (spl_image->fdt_addr)
spl_fit_record_loadable(fit, images, index,
spl_image->fdt_addr,
&image_info);
}
/*
* If a platform does not provide CONFIG_SYS_UBOOT_START, U-Boot's
* Makefile will set it to 0 and it will end up as the entry point
* here. What it actually means is: use the load address.
*/
if (spl_image->entry_point == FDT_ERROR || spl_image->entry_point == 0)
spl_image->entry_point = spl_image->load_addr;
spl_image->flags |= SPL_FIT_FOUND;
#ifdef CONFIG_SECURE_BOOT
board_spl_fit_post_load((ulong)fit, size);
#endif
return 0;
}
static int ft_hs_fixup_crossbar(void *fdt, bd_t *bd)
{
const char *path;
int offs;
int ret;
int len, i, old_cnt, new_cnt;
u32 *temp;
const u32 *p_data;
/*
* Increase the size of the fdt
* so we have some breathing room
*/
ret = fdt_increase_size(fdt, 512);
if (ret < 0) {
printf("Could not increase size of device tree: %s\n",
fdt_strerror(ret));
return ret;
}
/* Reserve IRQs that are used/needed by secure world */
path = "/ocp/crossbar";
offs = fdt_path_offset(fdt, path);
if (offs < 0) {
debug("Node %s not found.\n", path);
return 0;
}
/* Get current entries */
p_data = fdt_getprop(fdt, offs, "ti,irqs-skip", &len);
if (p_data)
old_cnt = len / sizeof(u32);
else
old_cnt = 0;
new_cnt = sizeof(hs_irq_skip) /
sizeof(hs_irq_skip[0]);
/* Create new/updated skip list for HS parts */
temp = malloc(sizeof(u32) * (old_cnt + new_cnt));
for (i = 0; i < new_cnt; i++)
temp[i] = cpu_to_fdt32(hs_irq_skip[i]);
for (i = 0; i < old_cnt; i++)
temp[i + new_cnt] = p_data[i];
/* Blow away old data and set new data */
fdt_delprop(fdt, offs, "ti,irqs-skip");
ret = fdt_setprop(fdt, offs, "ti,irqs-skip",
temp,
(old_cnt + new_cnt) * sizeof(u32));
free(temp);
/* Check if the update worked */
if (ret < 0) {
printf("Could not add ti,irqs-skip property to node %s: %s\n",
path, fdt_strerror(ret));
return ret;
}
return 0;
}
int update_tftp(ulong addr)
{
char *filename, *env_addr;
int images_noffset, ndepth, noffset;
ulong update_addr, update_fladdr, update_size;
void *fit;
int ret = 0;
/* use already present image */
if (addr)
goto got_update_file;
printf("Auto-update from TFTP: ");
/* get the file name of the update file */
filename = getenv(UPDATE_FILE_ENV);
if (filename == NULL) {
printf("failed, env. variable '%s' not found\n",
UPDATE_FILE_ENV);
return 1;
}
printf("trying update file '%s'\n", filename);
/* get load address of downloaded update file */
if ((env_addr = getenv("loadaddr")) != NULL)
addr = simple_strtoul(env_addr, NULL, 16);
else
addr = CONFIG_UPDATE_LOAD_ADDR;
if (update_load(filename, CONFIG_UPDATE_TFTP_MSEC_MAX,
CONFIG_UPDATE_TFTP_CNT_MAX, addr)) {
printf("Can't load update file, aborting auto-update\n");
return 1;
}
got_update_file:
fit = (void *)addr;
if (!fit_check_format((void *)fit)) {
printf("Bad FIT format of the update file, aborting "
"auto-update\n");
return 1;
}
/* process updates */
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
ndepth = 0;
noffset = fdt_next_node(fit, images_noffset, &ndepth);
while (noffset >= 0 && ndepth > 0) {
if (ndepth != 1)
goto next_node;
printf("Processing update '%s' :",
fit_get_name(fit, noffset, NULL));
if (!fit_image_verify(fit, noffset)) {
printf("Error: invalid update hash, aborting\n");
ret = 1;
goto next_node;
}
printf("\n");
if (update_fit_getparams(fit, noffset, &update_addr,
&update_fladdr, &update_size)) {
printf("Error: can't get update parameteres, "
"aborting\n");
ret = 1;
goto next_node;
}
if (update_flash(update_addr, update_fladdr, update_size)) {
printf("Error: can't flash update, aborting\n");
ret = 1;
goto next_node;
}
next_node:
noffset = fdt_next_node(fit, noffset, &ndepth);
}
return ret;
}
static int fdt_init_qdev(char *node_path, FDTMachineInfo *fdti, char *compat)
{
int err;
qemu_irq irq;
hwaddr base;
int offset;
DeviceState *dev;
char *dev_type = NULL;
int is_intc;
Error *errp = NULL;
int i;
dev = fdt_create_qdev_from_compat(compat, &dev_type);
if (!dev) {
DB_PRINT("no match found for %s\n", compat);
return 1;
}
/* FIXME: attach to the sysbus instead */
object_property_add_child(container_get(qdev_get_machine(), "/unattached"),
qemu_devtree_get_node_name(fdti->fdt, node_path),
OBJECT(dev), NULL);
fdt_init_set_opaque(fdti, node_path, dev);
/* connect nic if appropriate */
static int nics;
if (object_property_find(OBJECT(dev), "mac", NULL)) {
qdev_set_nic_properties(dev, &nd_table[nics]);
if (nd_table[nics].instantiated) {
DB_PRINT("NIC instantiated: %s\n", dev_type);
nics++;
}
}
offset = fdt_path_offset(fdti->fdt, node_path);
for (offset = fdt_first_property_offset(fdti->fdt, offset);
offset != -FDT_ERR_NOTFOUND;
offset = fdt_next_property_offset(fdti->fdt, offset)) {
const char *propname;
int len;
const void *val = fdt_getprop_by_offset(fdti->fdt, offset,
&propname, &len);
propname = trim_vendor(propname);
ObjectProperty *p = object_property_find(OBJECT(dev), propname, NULL);
if (p) {
DB_PRINT("matched property: %s of type %s, len %d\n",
propname, p->type, len);
}
if (!p) {
continue;
}
/* FIXME: handle generically using accessors and stuff */
if (!strcmp(p->type, "uint8") || !strcmp(p->type, "uint16") ||
!strcmp(p->type, "uint32") || !strcmp(p->type, "uint64")) {
uint64_t offset = (!strcmp(propname, "reg")) ?
fdt_get_parent_base(node_path, fdti) : 0;
object_property_set_int(OBJECT(dev), get_int_be(val, len) + offset,
propname, &errp);
assert_no_error(errp);
DB_PRINT("set property %s to %#llx\n", propname,
(long long unsigned int)get_int_be(val, len));
} else if (!strcmp(p->type, "bool")) {
object_property_set_bool(OBJECT(dev), !!get_int_be(val, len),
propname, &errp);
assert_no_error(errp);
DB_PRINT("set property %s to %#llx\n", propname,
(long long unsigned int)get_int_be(val, len));
} else if (!strncmp(p->type, "link", 4)) {
char target_node_path[DT_PATH_LENGTH];
DeviceState *linked_dev;
if (qemu_devtree_get_node_by_phandle(fdti->fdt, target_node_path,
get_int_be(val, len))) {
abort();
}
while (!fdt_init_has_opaque(fdti, target_node_path)) {
fdt_init_yield(fdti);
}
linked_dev = fdt_init_get_opaque(fdti, target_node_path);
object_property_set_link(OBJECT(dev), OBJECT(linked_dev), propname,
&errp);
assert_no_error(errp);
} else if (!strcmp(p->type, "string")) {
object_property_set_str(OBJECT(dev), strndup(val, len), propname, &errp);
}
}
qdev_init_nofail(dev);
/* map slave attachment */
base = qemu_devtree_getprop_cell(fdti->fdt, node_path, "reg", 0, false,
&errp);
assert_no_error(errp);
base += fdt_get_parent_base(node_path, fdti);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
{
int len;
fdt_get_property(fdti->fdt, fdt_path_offset(fdti->fdt, node_path),
"interrupt-controller", &len);
is_intc = len >= 0;
DB_PRINT("is interrupt controller: %c\n", is_intc ? 'y' : 'n');
}
/* connect irq */
for (i = 0; ; ++i) {
char irq_info[1024];
irq = fdt_get_irq_info(fdti, node_path, i, &err, irq_info);
/* INTCs inferr their top level, if no IRQ connection specified */
if (err && is_intc) {
irq = fdti->irq_base[0];
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq);
fprintf(stderr, "FDT: (%s) connected top level irq %s\n", dev_type,
irq_info);
break;
}
if (!err) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
fprintf(stderr, "FDT: (%s) connected irq %s\n", dev_type, irq_info);
} else {
break;
}
}
if (dev_type) {
g_free(dev_type);
}
return 0;
}
/*
* Flattened Device Tree command, see the help for parameter definitions.
*/
static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
return CMD_RET_USAGE;
/*
* Set the address of the fdt
*/
if (strncmp(argv[1], "ad", 2) == 0) {
unsigned long addr;
int control = 0;
struct fdt_header *blob;
/*
* Set the address [and length] of the fdt.
*/
argc -= 2;
argv += 2;
/* Temporary #ifdef - some archs don't have fdt_blob yet */
#ifdef CONFIG_OF_CONTROL
if (argc && !strcmp(*argv, "-c")) {
control = 1;
argc--;
argv++;
}
#endif
if (argc == 0) {
if (control)
blob = (struct fdt_header *)gd->fdt_blob;
else
blob = working_fdt;
if (!blob || !fdt_valid(&blob))
return 1;
printf("The address of the fdt is %#08lx\n",
control ? (ulong)map_to_sysmem(blob) :
getenv_hex("fdtaddr", 0));
return 0;
}
addr = simple_strtoul(argv[0], NULL, 16);
blob = map_sysmem(addr, 0);
if (!fdt_valid(&blob))
return 1;
if (control)
gd->fdt_blob = blob;
else
set_working_fdt_addr(addr);
if (argc >= 2) {
int len;
int err;
/*
* Optional new length
*/
len = simple_strtoul(argv[1], NULL, 16);
if (len < fdt_totalsize(blob)) {
printf ("New length %d < existing length %d, "
"ignoring.\n",
len, fdt_totalsize(blob));
} else {
/*
* Open in place with a new length.
*/
err = fdt_open_into(blob, blob, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
}
}
}
return CMD_RET_SUCCESS;
}
if (!working_fdt) {
puts(
"No FDT memory address configured. Please configure\n"
"the FDT address via \"fdt addr <address>\" command.\n"
"Aborting!\n");
return CMD_RET_FAILURE;
}
/*
* Move the working_fdt
*/
if (strncmp(argv[1], "mo", 2) == 0) {
struct fdt_header *newaddr;
int len;
int err;
if (argc < 4)
return CMD_RET_USAGE;
/*
* Set the address and length of the fdt.
*/
working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid(&working_fdt))
return 1;
newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16);
/*
* If the user specifies a length, use that. Otherwise use the
* current length.
*/
if (argc <= 4) {
len = fdt_totalsize(working_fdt);
} else {
len = simple_strtoul(argv[4], NULL, 16);
if (len < fdt_totalsize(working_fdt)) {
printf ("New length 0x%X < existing length "
"0x%X, aborting.\n",
len, fdt_totalsize(working_fdt));
return 1;
}
}
/*
* Copy to the new location.
*/
err = fdt_open_into(working_fdt, newaddr, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
return 1;
}
working_fdt = newaddr;
/*
* Make a new node
*/
} else if (strncmp(argv[1], "mk", 2) == 0) {
char *pathp; /* path */
char *nodep; /* new node to add */
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Parameters: Node path, new node to be appended to the path.
*/
if (argc < 4)
return CMD_RET_USAGE;
pathp = argv[2];
nodep = argv[3];
nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
err = fdt_add_subnode(working_fdt, nodeoffset, nodep);
if (err < 0) {
printf ("libfdt fdt_add_subnode(): %s\n",
fdt_strerror(err));
return 1;
}
/*
* Set the value of a property in the working_fdt.
*/
} else if (argv[1][0] == 's') {
char *pathp; /* path */
char *prop; /* property */
int nodeoffset; /* node offset from libfdt */
static char data[SCRATCHPAD]; /* storage for the property */
int len; /* new length of the property */
int ret; /* return value */
/*
* Parameters: Node path, property, optional value.
*/
if (argc < 4)
return CMD_RET_USAGE;
pathp = argv[2];
prop = argv[3];
if (argc == 4) {
len = 0;
} else {
ret = fdt_parse_prop(&argv[4], argc - 4, data, &len);
if (ret != 0)
return ret;
}
nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len);
if (ret < 0) {
printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret));
return 1;
}
/********************************************************************
* Get the value of a property in the working_fdt.
********************************************************************/
} else if (argv[1][0] == 'g') {
char *subcmd; /* sub-command */
char *pathp; /* path */
char *prop; /* property */
char *var; /* variable to store result */
int nodeoffset; /* node offset from libfdt */
const void *nodep; /* property node pointer */
int len = 0; /* new length of the property */
/*
* Parameters: Node path, property, optional value.
*/
if (argc < 5)
return CMD_RET_USAGE;
subcmd = argv[2];
if (argc < 6 && subcmd[0] != 's')
return CMD_RET_USAGE;
var = argv[3];
pathp = argv[4];
prop = argv[5];
nodeoffset = fdt_path_offset(working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) {
int reqIndex = -1;
int startDepth = fdt_node_depth(
working_fdt, nodeoffset);
int curDepth = startDepth;
int curIndex = -1;
int nextNodeOffset = fdt_next_node(
working_fdt, nodeoffset, &curDepth);
if (subcmd[0] == 'n')
reqIndex = simple_strtoul(argv[5], NULL, 16);
while (curDepth > startDepth) {
if (curDepth == startDepth + 1)
curIndex++;
if (subcmd[0] == 'n' && curIndex == reqIndex) {
const char *nodeName = fdt_get_name(
working_fdt, nextNodeOffset, NULL);
setenv(var, (char *)nodeName);
return 0;
}
nextNodeOffset = fdt_next_node(
working_fdt, nextNodeOffset, &curDepth);
if (nextNodeOffset < 0)
break;
}
if (subcmd[0] == 's') {
/* get the num nodes at this level */
setenv_ulong(var, curIndex + 1);
} else {
/* node index not found */
printf("libfdt node not found\n");
return 1;
}
} else {
nodep = fdt_getprop(
working_fdt, nodeoffset, prop, &len);
if (len == 0) {
/* no property value */
setenv(var, "");
return 0;
} else if (len > 0) {
if (subcmd[0] == 'v') {
int ret;
ret = fdt_value_setenv(nodep, len, var);
if (ret != 0)
return ret;
} else if (subcmd[0] == 'a') {
/* Get address */
char buf[11];
sprintf(buf, "0x%p", nodep);
setenv(var, buf);
} else if (subcmd[0] == 's') {
/* Get size */
char buf[11];
sprintf(buf, "0x%08X", len);
setenv(var, buf);
} else
return CMD_RET_USAGE;
return 0;
} else {
printf("libfdt fdt_getprop(): %s\n",
fdt_strerror(len));
return 1;
}
}
/*
* Print (recursive) / List (single level)
*/
} else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) {
int depth = MAX_LEVEL; /* how deep to print */
char *pathp; /* path */
char *prop; /* property */
int ret; /* return value */
static char root[2] = "/";
/*
* list is an alias for print, but limited to 1 level
*/
if (argv[1][0] == 'l') {
depth = 1;
}
/*
* Get the starting path. The root node is an oddball,
* the offset is zero and has no name.
*/
if (argc == 2)
pathp = root;
else
pathp = argv[2];
if (argc > 3)
prop = argv[3];
else
prop = NULL;
ret = fdt_print(pathp, prop, depth);
if (ret != 0)
return ret;
/*
* Remove a property/node
*/
} else if (strncmp(argv[1], "rm", 2) == 0) {
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Get the path. The root node is an oddball, the offset
* is zero and has no name.
*/
nodeoffset = fdt_path_offset (working_fdt, argv[2]);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
/*
* Do the delete. A fourth parameter means delete a property,
* otherwise delete the node.
*/
if (argc > 3) {
err = fdt_delprop(working_fdt, nodeoffset, argv[3]);
if (err < 0) {
printf("libfdt fdt_delprop(): %s\n",
fdt_strerror(err));
return err;
}
} else {
err = fdt_del_node(working_fdt, nodeoffset);
if (err < 0) {
printf("libfdt fdt_del_node(): %s\n",
fdt_strerror(err));
return err;
}
}
/*
* Display header info
*/
} else if (argv[1][0] == 'h') {
u32 version = fdt_version(working_fdt);
printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt));
printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt),
fdt_totalsize(working_fdt));
printf("off_dt_struct:\t\t0x%x\n",
fdt_off_dt_struct(working_fdt));
printf("off_dt_strings:\t\t0x%x\n",
fdt_off_dt_strings(working_fdt));
printf("off_mem_rsvmap:\t\t0x%x\n",
fdt_off_mem_rsvmap(working_fdt));
printf("version:\t\t%d\n", version);
printf("last_comp_version:\t%d\n",
fdt_last_comp_version(working_fdt));
if (version >= 2)
printf("boot_cpuid_phys:\t0x%x\n",
fdt_boot_cpuid_phys(working_fdt));
if (version >= 3)
printf("size_dt_strings:\t0x%x\n",
fdt_size_dt_strings(working_fdt));
if (version >= 17)
printf("size_dt_struct:\t\t0x%x\n",
fdt_size_dt_struct(working_fdt));
printf("number mem_rsv:\t\t0x%x\n",
fdt_num_mem_rsv(working_fdt));
printf("\n");
/*
* Set boot cpu id
*/
} else if (strncmp(argv[1], "boo", 3) == 0) {
unsigned long tmp = simple_strtoul(argv[2], NULL, 16);
fdt_set_boot_cpuid_phys(working_fdt, tmp);
/*
* memory command
*/
} else if (strncmp(argv[1], "me", 2) == 0) {
uint64_t addr, size;
int err;
addr = simple_strtoull(argv[2], NULL, 16);
size = simple_strtoull(argv[3], NULL, 16);
err = fdt_fixup_memory(working_fdt, addr, size);
if (err < 0)
return err;
/*
* mem reserve commands
*/
} else if (strncmp(argv[1], "rs", 2) == 0) {
if (argv[2][0] == 'p') {
uint64_t addr, size;
int total = fdt_num_mem_rsv(working_fdt);
int j, err;
printf("index\t\t start\t\t size\n");
printf("-------------------------------"
"-----------------\n");
for (j = 0; j < total; j++) {
err = fdt_get_mem_rsv(working_fdt, j, &addr, &size);
if (err < 0) {
printf("libfdt fdt_get_mem_rsv(): %s\n",
fdt_strerror(err));
return err;
}
printf(" %x\t%08x%08x\t%08x%08x\n", j,
(u32)(addr >> 32),
(u32)(addr & 0xffffffff),
(u32)(size >> 32),
(u32)(size & 0xffffffff));
}
} else if (argv[2][0] == 'a') {
/*
* chosen {
* bootargs = "console=ttyS0,115200 ubi.mtd=4 root=ubi0:rootfs rootfstype=ubifs";
* };
* 호출: int offset = fdt_path_offset(fdt, "/chosen");
*/
int fdt_path_offset(const void *fdt, const char *path)
{
/*
* p : "chosen"의 시작 주소
* end : "chosen"의 끝 주소
*/
const char *end = path + strlen(path);
const char *p = path;
int offset = 0;
FDT_CHECK_HEADER(fdt);
/* see if we have an alias */
if (*path != '/') {
// path가 '/'로 시작하지 않으면 path내에서 '/' 위치 찾음
const char *q = strchr(path, '/');
// path내에 '/'가 없으면 끝 주소로 지정
if (!q)
q = end;
/*
* '/'로 시작하지 않았다면 alias라고 가정하고 원래 node명 탐색
* p: alias명
* q-p: alias 길이
*/
p = fdt_get_alias_namelen(fdt, p, q - p);
// alias도 아닌경우 에러 리턴
if (!p)
return -FDT_ERR_BADPATH;
offset = fdt_path_offset(fdt, p);
p = q;
}
/*
* "chosen"의 alias가 없으면 여기서 탐색
* 여기서는 node의 이름이 "chosen"인지 아닌지 탐색
*/
while (*p) {
const char *q;
// path내에서 '/'가 아닌곳까지 이동
while (*p == '/')
p++;
// path 끝까지 이동한 경우
if (! *p)
return offset;
// p를 기준으로 다음 '/' 위치까지 찾아서
q = strchr(p, '/');
// 다음 '/'가 없다면 path의 끝으로 지정
if (! q)
q = end;
// path에서 '/'로 split 해보면서
// 하위 node들중 해당 이름의 node가 있는지 탐색
offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
if (offset < 0)
return offset;
p = q;
}
return offset;
}
static struct obj *mpu6000_gyro_ctor(const char *name) {
const void *blob = fdtparse_get_blob();
int offset, parent_offset;
char *parent;
struct obj *gyro_obj;
struct gyro *gyro;
struct mpu6000_gyro *mpu_gyro;
offset = fdt_path_offset(blob, name);
if (offset < 0) {
return NULL;
}
if (fdt_node_check_compatible(blob, offset, MPU6000_GYRO_COMPAT)) {
return NULL;
}
parent_offset = fdt_parent_offset(blob, offset);
if (parent_offset < 0) {
return NULL;
}
parent = fdtparse_get_path(blob, parent_offset);
if (!parent) {
return NULL;
}
gyro_obj = instantiate(name, &gyro_class, &mpu6000_gyro_ops,
struct gyro);
if (!gyro_obj) {
goto err_free_parent;
}
/* Connect to parent MPU6000 */
gyro = to_gyro(gyro_obj);
gyro->device.parent = device_get(parent);
if (!gyro->device.parent) {
goto err_free_obj;
}
/* Set up private data */
gyro->priv = kmalloc(sizeof(struct mpu6000_gyro));
if (!gyro->priv) {
goto err_free_obj;
}
mpu_gyro = (struct mpu6000_gyro *) gyro->priv;
mpu_gyro->ready = 0;
/* Export to the OS */
class_export_member(gyro_obj);
free(parent);
return gyro_obj;
err_free_obj:
class_deinstantiate(gyro_obj);
err_free_parent:
free(parent);
return NULL;
}
static int nlm_fdt_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
static char tabs[MAX_LEVEL+1] =
"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"
"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
const void *nodep; /* property node pointer */
int nodeoffset; /* node offset from libfdt */
int nextoffset; /* next node offset from libfdt */
uint32_t tag; /* tag */
int len; /* length of the property */
int level = 0; /* keep track of nesting level */
const struct fdt_property *fdt_prop;
int plen = 0;
const char *pathp = "/";
int depth = MAX_LEVEL;
off_t begin = 0;
working_fdt = (struct fdt_header *)fdt;
nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
plen += sprintf(page + plen,
"libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
goto out;
}
/*
* The user passed in a node path and no property,
* print the node and all subnodes.
*/
while(level >= 0) {
if (!proc_pos_check(&begin, &plen, off, count)) goto out;
tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset);
switch(tag) {
case FDT_BEGIN_NODE:
pathp = fdt_get_name(working_fdt, nodeoffset, NULL);
if (level <= depth) {
if (pathp == NULL)
pathp = "/* NULL pointer error */";
if (*pathp == '\0')
pathp = "/"; /* root is nameless */
plen += sprintf(page + plen, "%s%s {\n",
&tabs[MAX_LEVEL - level], pathp);
}
level++;
if (level >= MAX_LEVEL) {
plen += sprintf(page + plen, "Nested too deep, aborting.\n");
goto out;
}
break;
case FDT_END_NODE:
level--;
if (level <= depth)
plen += sprintf(page + plen, "%s};\n", &tabs[MAX_LEVEL - level]);
if (level == 0) {
level = -1; /* exit the loop */
}
break;
case FDT_PROP:
fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset,
sizeof(*fdt_prop));
pathp = fdt_string(working_fdt,
fdt32_to_cpu(fdt_prop->nameoff));
len = fdt32_to_cpu(fdt_prop->len);
nodep = fdt_prop->data;
if (len < 0) {
plen += sprintf (page + plen, "libfdt fdt_getprop(): %s\n",
fdt_strerror(len));
goto out;
} else if (len == 0) {
/* the property has no value */
if (level <= depth)
plen += sprintf(page + plen, "%s%s;\n",
&tabs[MAX_LEVEL - level],
pathp);
} else {
if (level <= depth) {
plen += sprintf(page + plen, "%s%s = ",
&tabs[MAX_LEVEL - level],
pathp);
plen += print_data (page + plen, nodep, len);
plen += sprintf(page + plen, ";\n");
}
}
break;
case FDT_NOP:
plen += sprintf(page + plen, "%s/* NOP */\n", &tabs[MAX_LEVEL - level]);
break;
case FDT_END:
goto good_out;
default:
if (level <= depth)
plen += sprintf(page + plen, "Unknown tag 0x%08X\n", tag);
goto out;
}
nodeoffset = nextoffset;
}
good_out:
*eof = 1;
out:
*start = page + (off - begin);
plen -= (off - begin);
if (plen > count)
plen = count;
if (plen < 0)
plen = 0;
return plen;
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
const u32 *na, *ns, *reg, *timebase;
u64 memsize64;
int node, size, i;
/* */
if (fdt_check_header(_dtb_start) != 0)
fatal("Invalid device tree blob\n");
/* */
node = fdt_path_offset(_dtb_start, "/");
if (node < 0)
fatal("Cannot find root node\n");
na = fdt_getprop(_dtb_start, node, "#address-cells", &size);
if (!na || (size != 4))
fatal("Cannot find #address-cells property");
ns = fdt_getprop(_dtb_start, node, "#size-cells", &size);
if (!ns || (size != 4))
fatal("Cannot find #size-cells property");
/* */
node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type",
"memory", sizeof("memory"));
if (node < 0)
fatal("Cannot find memory node\n");
reg = fdt_getprop(_dtb_start, node, "reg", &size);
if (size < (*na+*ns) * sizeof(u32))
fatal("cannot get memory range\n");
/* */
for (i = 0; i < *na; i++)
if (*reg++ != 0)
fatal("Memory range is not based at address 0\n");
/* */
memsize64 = 0;
for (i = 0; i < *ns; i++)
memsize64 = (memsize64 << 32) | *reg++;
if (sizeof(void *) == 4 && memsize64 >= 0x100000000ULL)
memsize64 = 0xffffffff;
/* */
node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type",
"cpu", sizeof("cpu"));
if (!node)
fatal("Cannot find cpu node\n");
timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size);
if (timebase && (size == 4))
timebase_period_ns = 1000000000 / *timebase;
/* */
simple_alloc_init(_end, memsize64 - (unsigned long)_end, 32, 64);
/* */
fdt_init(_dtb_start);
if (platform_specific_init)
platform_specific_init();
serial_console_init();
}
void ft_cpu_setup(void *blob, bd_t *bd)
{
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
int spridr = immr->sysconf.spridr;
/*
* delete crypto node if not on an E-processor
* initial revisions of the MPC834xE/6xE have the original SEC 2.0.
* EA revisions got the SEC uprevved to 2.4 but since the default device
* tree contains SEC 2.0 properties we uprev them here.
*/
if (!IS_E_PROCESSOR(spridr))
fdt_fixup_crypto_node(blob, 0);
else if (IS_E_PROCESSOR(spridr) &&
(SPR_FAMILY(spridr) == SPR_834X_FAMILY ||
SPR_FAMILY(spridr) == SPR_836X_FAMILY) &&
REVID_MAJOR(spridr) >= 2)
fdt_fixup_crypto_node(blob, 0x0204);
#if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3) ||\
defined(CONFIG_HAS_ETH4) || defined(CONFIG_HAS_ETH5)
fdt_fixup_ethernet(blob);
#ifdef CONFIG_MPC8313
/*
* mpc8313e erratum IPIC1 swapped TSEC interrupt ID numbers on rev. 1
* h/w (see AN3545). The base device tree in use has rev. 1 ID numbers,
* so if on Rev. 2 (and higher) h/w, we fix them up here
*/
if (REVID_MAJOR(immr->sysconf.spridr) >= 2) {
int nodeoffset, path;
const char *prop;
nodeoffset = fdt_path_offset(blob, "/aliases");
if (nodeoffset >= 0) {
#if defined(CONFIG_HAS_ETH0)
prop = fdt_getprop(blob, nodeoffset, "ethernet0", NULL);
if (prop) {
u32 tmp[] = { 32, 0x8, 33, 0x8, 34, 0x8 };
path = fdt_path_offset(blob, prop);
prop = fdt_getprop(blob, path, "interrupts",
NULL);
if (prop)
fdt_setprop(blob, path, "interrupts",
&tmp, sizeof(tmp));
}
#endif
#if defined(CONFIG_HAS_ETH1)
prop = fdt_getprop(blob, nodeoffset, "ethernet1", NULL);
if (prop) {
u32 tmp[] = { 35, 0x8, 36, 0x8, 37, 0x8 };
path = fdt_path_offset(blob, prop);
prop = fdt_getprop(blob, path, "interrupts",
NULL);
if (prop)
fdt_setprop(blob, path, "interrupts",
&tmp, sizeof(tmp));
}
#endif
}
}
#endif
#endif
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"timebase-frequency", (bd->bi_busfreq / 4), 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
"clock-frequency", gd->core_clk, 1);
do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
"bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_compat_u32(blob, "fsl,soc",
"bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_compat_u32(blob, "fsl,soc",
"clock-frequency", bd->bi_busfreq, 1);
do_fixup_by_compat_u32(blob, "fsl,immr",
"bus-frequency", bd->bi_busfreq, 1);
do_fixup_by_compat_u32(blob, "fsl,immr",
"clock-frequency", bd->bi_busfreq, 1);
#ifdef CONFIG_QE
ft_qe_setup(blob);
#endif
#ifdef CONFIG_SYS_NS16550
do_fixup_by_compat_u32(blob, "ns16550",
"clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
#endif
fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
#if defined(CONFIG_BOOTCOUNT_LIMIT)
fdt_fixup_muram (blob);
#endif
}
/* TODO: Can we tighten this code up a little? */
int fdtdec_add_aliases_for_id(const void *blob, const char *name,
enum fdt_compat_id id, int *node_list, int maxcount)
{
int name_len = strlen(name);
int nodes[maxcount];
int num_found = 0;
int offset, node;
int alias_node;
int count;
int i, j;
/* find the alias node if present */
alias_node = fdt_path_offset(blob, "/aliases");
/*
* start with nothing, and we can assume that the root node can't
* match
*/
memset(nodes, '\0', sizeof(nodes));
/* First find all the compatible nodes */
for (node = count = 0; node >= 0 && count < maxcount;) {
node = fdtdec_next_compatible(blob, node, id);
if (node >= 0)
nodes[count++] = node;
}
if (node >= 0)
debug("%s: warning: maxcount exceeded with alias '%s'\n",
__func__, name);
/* Now find all the aliases */
for (offset = fdt_first_property_offset(blob, alias_node);
offset > 0;
offset = fdt_next_property_offset(blob, offset)) {
const struct fdt_property *prop;
const char *path;
int number;
int found;
node = 0;
prop = fdt_get_property_by_offset(blob, offset, NULL);
path = fdt_string(blob, fdt32_to_cpu(prop->nameoff));
if (prop->len && 0 == strncmp(path, name, name_len))
node = fdt_path_offset(blob, prop->data);
if (node <= 0)
continue;
/* Get the alias number */
number = simple_strtoul(path + name_len, NULL, 10);
if (number < 0 || number >= maxcount) {
debug("%s: warning: alias '%s' is out of range\n",
__func__, path);
continue;
}
/* Make sure the node we found is actually in our list! */
found = -1;
for (j = 0; j < count; j++)
if (nodes[j] == node) {
found = j;
break;
}
if (found == -1) {
debug("%s: warning: alias '%s' points to a node "
"'%s' that is missing or is not compatible "
" with '%s'\n", __func__, path,
fdt_get_name(blob, node, NULL),
compat_names[id]);
continue;
}
/*
* Add this node to our list in the right place, and mark
* it as done.
*/
if (fdtdec_get_is_enabled(blob, node)) {
if (node_list[number]) {
debug("%s: warning: alias '%s' requires that "
"a node be placed in the list in a "
"position which is already filled by "
"node '%s'\n", __func__, path,
fdt_get_name(blob, node, NULL));
continue;
}
node_list[number] = node;
if (number >= num_found)
num_found = number + 1;
}
nodes[found] = 0;
}
/* Add any nodes not mentioned by an alias */
for (i = j = 0; i < maxcount; i++) {
if (!node_list[i]) {
for (; j < maxcount; j++)
if (nodes[j] &&
fdtdec_get_is_enabled(blob, nodes[j]))
break;
/* Have we run out of nodes to add? */
if (j == maxcount)
break;
assert(!node_list[i]);
node_list[i] = nodes[j++];
if (i >= num_found)
num_found = i + 1;
}
}
return num_found;
}
static int ait_menu_check_image(void)
{
char *s;
unsigned long fit_addr;
void *addr;
int format;
char *desc;
char *subtype;
int images_noffset;
int noffset;
int ndepth;
int count = 0;
int ret;
int i;
int found_uboot = -1;
int found_ramdisk = -1;
memset(imgs, 0, sizeof(imgs));
s = getenv("fit_addr_r");
fit_addr = s ? (unsigned long)simple_strtol(s, NULL, 16) : \
CONFIG_BOARD_IMG_ADDR_R;
addr = (void *)fit_addr;
/* check if it is a FIT image */
format = genimg_get_format(addr);
if (format != IMAGE_FORMAT_FIT)
return -EINVAL;
if (!fit_check_format(addr))
return -EINVAL;
/* print the FIT description */
ret = fit_get_desc(addr, 0, &desc);
printf("FIT description: ");
if (ret)
printf("unavailable\n");
else
printf("%s\n", desc);
/* find images */
images_noffset = fdt_path_offset(addr, FIT_IMAGES_PATH);
if (images_noffset < 0) {
printf("Can't find images parent node '%s' (%s)\n",
FIT_IMAGES_PATH, fdt_strerror(images_noffset));
return -EINVAL;
}
/* Process its subnodes, print out component images details */
for (ndepth = 0, count = 0,
noffset = fdt_next_node(addr, images_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(addr, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the images parent node,
* i.e. component image node.
*/
printf("Image %u (%s)\n", count,
fit_get_name(addr, noffset, NULL));
fit_image_print(addr, noffset, "");
fit_image_get_type(addr, noffset,
&imgs[count].type);
/* Mandatory properties */
ret = fit_get_desc(addr, noffset, &desc);
printf("Description: ");
if (ret)
printf("unavailable\n");
else
printf("%s\n", desc);
ret = fit_get_subtype(addr, noffset, &subtype);
printf("Subtype: ");
if (ret) {
printf("unavailable\n");
} else {
imgs[count].subtype = ait_subtype_nr(subtype);
printf("%s %d\n", subtype,
imgs[count].subtype);
}
sprintf(imgs[count].desc, "%s", desc);
ret = fit_image_get_data(addr, noffset,
&imgs[count].data,
&imgs[count].size);
printf("Data Size: ");
if (ret)
printf("unavailable\n");
else
genimg_print_size(imgs[count].size);
printf("Data @ %p\n", imgs[count].data);
count++;
}
}
for (i = 0; i < count; i++) {
if (imgs[i].subtype == FIT_SUBTYPE_UBOOT_IMAGE)
found_uboot = i;
if (imgs[i].type == IH_TYPE_RAMDISK) {
found_ramdisk = i;
imgs[i].subtype = FIT_SUBTYPE_RAMDISK_IMAGE;
}
}
/* dvn_* env var update, if the FIT descriptors are different */
if (found_uboot >= 0) {
s = getenv("dvn_boot_vers");
if (s) {
ret = strcmp(s, imgs[found_uboot].desc);
if (ret != 0) {
setenv("x_dvn_boot_vers",
imgs[found_uboot].desc);
} else {
found_uboot = -1;
printf("no new uboot version\n");
}
} else {
setenv("dvn_boot_vers", imgs[found_uboot].desc);
}
}
if (found_ramdisk >= 0) {
s = getenv("dvn_app_vers");
if (s) {
ret = strcmp(s, imgs[found_ramdisk].desc);
if (ret != 0) {
setenv("x_dvn_app_vers",
imgs[found_ramdisk].desc);
} else {
found_ramdisk = -1;
printf("no new ramdisk version\n");
}
} else {
setenv("dvn_app_vers", imgs[found_ramdisk].desc);
}
}
if ((found_uboot == -1) && (found_ramdisk == -1))
return -EINVAL;
return 0;
}
int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
{
int nodeoffset;
int err, j, total;
u32 tmp;
const char *path;
uint64_t addr, size;
/* Find the "chosen" node. */
nodeoffset = fdt_path_offset (fdt, "/chosen");
/* If there is no "chosen" node in the blob return */
if (nodeoffset < 0) {
printf("fdt_initrd: %s\n", fdt_strerror(nodeoffset));
return nodeoffset;
}
/* just return if initrd_start/end aren't valid */
if ((initrd_start == 0) || (initrd_end == 0))
return 0;
total = fdt_num_mem_rsv(fdt);
/*
* Look for an existing entry and update it. If we don't find
* the entry, we will j be the next available slot.
*/
for (j = 0; j < total; j++) {
err = fdt_get_mem_rsv(fdt, j, &addr, &size);
if (addr == initrd_start) {
fdt_del_mem_rsv(fdt, j);
break;
}
}
err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start);
if (err < 0) {
printf("fdt_initrd: %s\n", fdt_strerror(err));
return err;
}
path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
if ((path == NULL) || force) {
tmp = __cpu_to_be32(initrd_start);
err = fdt_setprop(fdt, nodeoffset,
"linux,initrd-start", &tmp, sizeof(tmp));
if (err < 0) {
printf("WARNING: "
"could not set linux,initrd-start %s.\n",
fdt_strerror(err));
return err;
}
tmp = __cpu_to_be32(initrd_end);
err = fdt_setprop(fdt, nodeoffset,
"linux,initrd-end", &tmp, sizeof(tmp));
if (err < 0) {
printf("WARNING: could not set linux,initrd-end %s.\n",
fdt_strerror(err));
return err;
}
}
return 0;
}
/**
* fit_conf_find_compat
* @fit: pointer to the FIT format image header
* @fdt: pointer to the device tree to compare against
*
* fit_conf_find_compat() attempts to find the configuration whose fdt is the
* most compatible with the passed in device tree.
*
* Example:
*
* / o image-tree
* |-o images
* | |-o fdt@1
* | |-o fdt@2
* |
* |-o configurations
* |-o config@1
* | |-fdt = fdt@1
* |
* |-o config@2
* |-fdt = fdt@2
*
* / o U-Boot fdt
* |-compatible = "foo,bar", "bim,bam"
*
* / o kernel fdt1
* |-compatible = "foo,bar",
*
* / o kernel fdt2
* |-compatible = "bim,bam", "baz,biz"
*
* Configuration 1 would be picked because the first string in U-Boot's
* compatible list, "foo,bar", matches a compatible string in the root of fdt1.
* "bim,bam" in fdt2 matches the second string which isn't as good as fdt1.
*
* returns:
* offset to the configuration to use if one was found
* -1 otherwise
*/
int fit_conf_find_compat(const void *fit, const void *fdt)
{
int ndepth = 0;
int noffset, confs_noffset, images_noffset;
const void *fdt_compat;
int fdt_compat_len;
int best_match_offset = 0;
int best_match_pos = 0;
confs_noffset = fdt_path_offset(fit, FIT_CONFS_PATH);
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (confs_noffset < 0 || images_noffset < 0) {
debug("Can't find configurations or images nodes.\n");
return -1;
}
fdt_compat = fdt_getprop(fdt, 0, "compatible", &fdt_compat_len);
if (!fdt_compat) {
debug("Fdt for comparison has no \"compatible\" property.\n");
return -1;
}
/*
* Loop over the configurations in the FIT image.
*/
for (noffset = fdt_next_node(fit, confs_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
const void *kfdt;
const char *kfdt_name;
int kfdt_noffset;
const char *cur_fdt_compat;
int len;
size_t size;
int i;
if (ndepth > 1)
continue;
kfdt_name = fdt_getprop(fit, noffset, "fdt", &len);
if (!kfdt_name) {
debug("No fdt property found.\n");
continue;
}
kfdt_noffset = fdt_subnode_offset(fit, images_noffset,
kfdt_name);
if (kfdt_noffset < 0) {
debug("No image node named \"%s\" found.\n",
kfdt_name);
continue;
}
/*
* Get a pointer to this configuration's fdt.
*/
if (fit_image_get_data(fit, kfdt_noffset, &kfdt, &size)) {
debug("Failed to get fdt \"%s\".\n", kfdt_name);
continue;
}
len = fdt_compat_len;
cur_fdt_compat = fdt_compat;
/*
* Look for a match for each U-Boot compatibility string in
* turn in this configuration's fdt.
*/
for (i = 0; len > 0 &&
(!best_match_offset || best_match_pos > i); i++) {
int cur_len = strlen(cur_fdt_compat) + 1;
if (!fdt_node_check_compatible(kfdt, 0,
cur_fdt_compat)) {
best_match_offset = noffset;
best_match_pos = i;
break;
}
len -= cur_len;
cur_fdt_compat += cur_len;
}
}
if (!best_match_offset) {
debug("No match found.\n");
return -1;
}
return best_match_offset;
}
/*
* Flattened Device Tree command, see the help for parameter definitions.
*/
int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
if (argc < 2) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/********************************************************************
* Set the address of the fdt
********************************************************************/
if (argv[1][0] == 'a') {
/*
* Set the address [and length] of the fdt.
*/
fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
if (argc >= 4) {
int len;
int err;
/*
* Optional new length
*/
len = simple_strtoul(argv[3], NULL, 16);
if (len < fdt_totalsize(fdt)) {
printf ("New length %d < existing length %d, "
"ignoring.\n",
len, fdt_totalsize(fdt));
} else {
/*
* Open in place with a new length.
*/
err = fdt_open_into(fdt, fdt, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
}
}
}
/********************************************************************
* Move the fdt
********************************************************************/
} else if ((argv[1][0] == 'm') && (argv[1][1] == 'o')) {
struct fdt_header *newaddr;
int len;
int err;
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* Set the address and length of the fdt.
*/
fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16);
/*
* If the user specifies a length, use that. Otherwise use the
* current length.
*/
if (argc <= 4) {
len = fdt_totalsize(fdt);
} else {
len = simple_strtoul(argv[4], NULL, 16);
if (len < fdt_totalsize(fdt)) {
printf ("New length 0x%X < existing length "
"0x%X, aborting.\n",
len, fdt_totalsize(fdt));
return 1;
}
}
/*
* Copy to the new location.
*/
err = fdt_open_into(fdt, newaddr, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
return 1;
}
fdt = newaddr;
/********************************************************************
* Make a new node
********************************************************************/
} else if ((argv[1][0] == 'm') && (argv[1][1] == 'k')) {
char *pathp; /* path */
char *nodep; /* new node to add */
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Parameters: Node path, new node to be appended to the path.
*/
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
nodep = argv[3];
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
err = fdt_add_subnode(fdt, nodeoffset, nodep);
if (err < 0) {
printf ("libfdt fdt_add_subnode(): %s\n",
fdt_strerror(err));
return 1;
}
/********************************************************************
* Set the value of a property in the fdt.
********************************************************************/
} else if (argv[1][0] == 's') {
char *pathp; /* path */
char *prop; /* property */
char *newval; /* value from the user (as a string) */
int nodeoffset; /* node offset from libfdt */
static char data[SCRATCHPAD]; /* storage for the property */
int len; /* new length of the property */
int ret; /* return value */
/*
* Parameters: Node path, property, value.
*/
if (argc < 5) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
prop = argv[3];
newval = argv[4];
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
ret = fdt_parse_prop(pathp, prop, newval, data, &len);
if (ret != 0)
return ret;
ret = fdt_setprop(fdt, nodeoffset, prop, data, len);
if (ret < 0) {
printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret));
return 1;
}
/********************************************************************
* Print (recursive) / List (single level)
********************************************************************/
} else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) {
int depth = MAX_LEVEL; /* how deep to print */
char *pathp; /* path */
char *prop; /* property */
int ret; /* return value */
static char root[2] = "/";
/*
* list is an alias for print, but limited to 1 level
*/
if (argv[1][0] == 'l') {
depth = 1;
}
/*
* Get the starting path. The root node is an oddball,
* the offset is zero and has no name.
*/
if (argc == 2)
pathp = root;
else
pathp = argv[2];
if (argc > 3)
prop = argv[3];
else
prop = NULL;
ret = fdt_print(pathp, prop, depth);
if (ret != 0)
return ret;
/********************************************************************
* Remove a property/node
********************************************************************/
} else if (argv[1][0] == 'r') {
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Get the path. The root node is an oddball, the offset
* is zero and has no name.
*/
nodeoffset = fdt_path_offset (fdt, argv[2]);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
/*
* Do the delete. A fourth parameter means delete a property,
* otherwise delete the node.
*/
if (argc > 3) {
err = fdt_delprop(fdt, nodeoffset, argv[3]);
if (err < 0) {
printf("libfdt fdt_delprop(): %s\n",
fdt_strerror(err));
return err;
}
} else {
err = fdt_del_node(fdt, nodeoffset);
if (err < 0) {
printf("libfdt fdt_del_node(): %s\n",
fdt_strerror(err));
return err;
}
}
}
#ifdef CONFIG_OF_BOARD_SETUP
/* Call the board-specific fixup routine */
else if (argv[1][0] == 'b')
ft_board_setup(fdt, gd->bd);
#endif
/* Create a chosen node */
else if (argv[1][0] == 'c')
fdt_chosen(fdt, 0, 0, 1);
#ifdef CONFIG_OF_HAS_UBOOT_ENV
/* Create a u-boot-env node */
else if (argv[1][0] == 'e')
fdt_env(fdt);
#endif
#ifdef CONFIG_OF_HAS_BD_T
/* Create a bd_t node */
else if (argv[1][0] == 'b')
fdt_bd_t(fdt);
#endif
else {
/* Unrecognized command */
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
return 0;
}
