[U-Boot] [RFC PATCH 16/22] image: Use fit_image_load() to load FDT
Simon Glass
sjg at chromium.org
Thu Jan 10 15:58:19 CET 2013
Use the new common code to load a flat device tree. Also fix up a few casts
so that this code works with sandbox. Other than that the functionality
should not change.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
common/cmd_bootm.c | 4 +-
common/image-fdt.c | 214 +++++++---------------------------------------------
common/image-fit.c | 19 -----
include/image.h | 6 +-
4 files changed, 33 insertions(+), 210 deletions(-)
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index d71ffb5..33320cb 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -295,7 +295,7 @@ static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
#if defined(CONFIG_OF_LIBFDT)
/* find flattened device tree */
- ret = boot_get_fdt(flag, argc, argv, &images,
+ ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
&images.ft_addr, &images.ft_len);
if (ret) {
puts("Could not find a valid device tree\n");
@@ -1609,7 +1609,7 @@ static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
#if defined(CONFIG_OF_LIBFDT)
/* find flattened device tree */
- ret = boot_get_fdt(flag, argc, argv, images,
+ ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, images,
&images->ft_addr, &images->ft_len);
if (ret) {
puts("Could not find a valid device tree\n");
diff --git a/common/image-fdt.c b/common/image-fdt.c
index e317735..d4bcad8 100644
--- a/common/image-fdt.c
+++ b/common/image-fdt.c
@@ -212,51 +212,11 @@ error:
return 1;
}
-#if defined(CONFIG_FIT)
-/**
- * fit_check_fdt - verify FIT format FDT subimage
- * @fit_hdr: pointer to the FIT header
- * fdt_noffset: FDT subimage node offset within FIT image
- * @verify: data CRC verification flag
- *
- * fit_check_fdt() verifies integrity of the FDT subimage and from
- * specified FIT image.
- *
- * returns:
- * 1, on success
- * 0, on failure
- */
-static int fit_check_fdt(const void *fit, int fdt_noffset, int verify)
-{
- fit_image_print(fit, fdt_noffset, " ");
-
- if (verify) {
- puts(" Verifying Hash Integrity ... ");
- if (!fit_image_verify(fit, fdt_noffset)) {
- fdt_error("Bad Data Hash");
- return 0;
- }
- puts("OK\n");
- }
-
- if (!fit_image_check_type(fit, fdt_noffset, IH_TYPE_FLATDT)) {
- fdt_error("Not a FDT image");
- return 0;
- }
-
- if (!fit_image_check_comp(fit, fdt_noffset, IH_COMP_NONE)) {
- fdt_error("FDT image is compressed");
- return 0;
- }
-
- return 1;
-}
-#endif
-
/**
* boot_get_fdt - main fdt handling routine
* @argc: command argument count
* @argv: command argument list
+ * @arch: architecture (IH_ARCH_...)
* @images: pointer to the bootm images structure
* @of_flat_tree: pointer to a char* variable, will hold fdt start address
* @of_size: pointer to a ulong variable, will hold fdt length
@@ -274,24 +234,20 @@ static int fit_check_fdt(const void *fit, int fdt_noffset, int verify)
* 1, if fdt image is found but corrupted
* of_flat_tree and of_size are set to 0 if no fdt exists
*/
-int boot_get_fdt(int flag, int argc, char * const argv[],
+int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
{
const image_header_t *fdt_hdr;
ulong fdt_addr;
char *fdt_blob = NULL;
ulong image_start, image_data, image_end;
- ulong load_start, load_end;
+ ulong load, load_end;
void *buf;
#if defined(CONFIG_FIT)
- void *fit_hdr;
const char *fit_uname_config = NULL;
const char *fit_uname_fdt = NULL;
ulong default_addr;
- int cfg_noffset;
int fdt_noffset;
- const void *data;
- size_t size;
#endif
*of_flat_tree = NULL;
@@ -337,32 +293,14 @@ int boot_get_fdt(int flag, int argc, char * const argv[],
* command argument
*/
fdt_addr = map_to_sysmem(images->fit_hdr_os);
- fit_uname_config = images->fit_uname_cfg;
- debug("* fdt: using config '%s' from image "
- "at 0x%08lx\n",
- fit_uname_config, fdt_addr);
-
- /*
- * Check whether configuration has FDT blob defined,
- * if not quit silently.
- */
- fit_hdr = images->fit_hdr_os;
- cfg_noffset = fit_conf_get_node(fit_hdr,
- fit_uname_config);
- if (cfg_noffset < 0) {
- debug("* fdt: no such config\n");
- return 0;
- }
-
- fdt_noffset = fit_conf_get_fdt_node(fit_hdr,
- cfg_noffset);
- if (fdt_noffset < 0) {
- debug("* fdt: no fdt in config\n");
+ fdt_noffset = fit_get_node_from_config(images,
+ FIT_FDT_PROP, fdt_addr);
+ if (fdt_noffset == -ENOLINK)
return 0;
- }
+ else if (fdt_noffset < 0)
+ return 1;
}
#endif
-
debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
fdt_addr);
@@ -393,29 +331,28 @@ int boot_get_fdt(int flag, int argc, char * const argv[],
image_data = (ulong)image_get_data(fdt_hdr);
image_end = image_get_image_end(fdt_hdr);
- load_start = image_get_load(fdt_hdr);
- load_end = load_start + image_get_data_size(fdt_hdr);
+ load = image_get_load(fdt_hdr);
+ load_end = load + image_get_data_size(fdt_hdr);
- if (load_start == image_start ||
- load_start == image_data) {
+ if (load == image_start ||
+ load == image_data) {
fdt_blob = (char *)image_data;
break;
}
- if ((load_start < image_end) &&
- (load_end > image_start)) {
+ if ((load < image_end) && (load_end > image_start)) {
fdt_error("fdt overwritten");
goto error;
}
debug(" Loading FDT from 0x%08lx to 0x%08lx\n",
- image_data, load_start);
+ image_data, load);
- memmove((void *)load_start,
+ memmove((void *)load,
(void *)image_data,
image_get_data_size(fdt_hdr));
- fdt_blob = (char *)load_start;
+ fdt_addr = load;
break;
case IMAGE_FORMAT_FIT:
/*
@@ -426,114 +363,20 @@ int boot_get_fdt(int flag, int argc, char * const argv[],
#if defined(CONFIG_FIT)
/* check FDT blob vs FIT blob */
if (fit_check_format(buf)) {
- /*
- * FIT image
- */
- fit_hdr = buf;
- printf("## Flattened Device Tree from FIT "
- "Image at %08lx\n",
- fdt_addr);
+ ulong load, len;
- if (!fit_uname_fdt) {
- /*
- * no FDT blob image node unit name,
- * try to get config node first. If
- * config unit node name is NULL
- * fit_conf_get_node() will try to
- * find default config node
- */
- cfg_noffset = fit_conf_get_node(fit_hdr,
- fit_uname_config);
-
- if (cfg_noffset < 0) {
- fdt_error("Could not find "
- "configuration "
- "node\n");
- goto error;
- }
-
- fit_uname_config = fdt_get_name(fit_hdr,
- cfg_noffset, NULL);
- printf(" Using '%s' configuration\n",
- fit_uname_config);
-
- fdt_noffset = fit_conf_get_fdt_node(
- fit_hdr,
- cfg_noffset);
- fit_uname_fdt = fit_get_name(fit_hdr,
- fdt_noffset, NULL);
- } else {
- /*
- * get FDT component image node
- * offset
- */
- fdt_noffset = fit_image_get_node(
- fit_hdr,
- fit_uname_fdt);
- }
- if (fdt_noffset < 0) {
- fdt_error("Could not find subimage "
- "node\n");
- goto error;
- }
-
- printf(" Trying '%s' FDT blob subimage\n",
- fit_uname_fdt);
-
- if (!fit_check_fdt(fit_hdr, fdt_noffset,
- images->verify))
- goto error;
-
- /* get ramdisk image data address and length */
- if (fit_image_get_data(fit_hdr, fdt_noffset,
- &data, &size)) {
- fdt_error("Could not find FDT "
- "subimage data");
- goto error;
- }
+ fdt_noffset = fit_image_load(images,
+ FIT_FDT_PROP,
+ fdt_addr, &fit_uname_fdt,
+ fit_uname_config,
+ arch, IH_TYPE_FLATDT,
+ BOOTSTAGE_ID_FIT_FDT_START,
+ FIT_LOAD_OPTIONAL, &load, &len);
- /*
- * verify that image data is a proper FDT
- * blob
- */
- if (fdt_check_header((char *)data) != 0) {
- fdt_error("Subimage data is not a FTD");
- goto error;
- }
-
- /*
- * move image data to the load address,
- * make sure we don't overwrite initial image
- */
- image_start = (ulong)fit_hdr;
- image_end = fit_get_end(fit_hdr);
-
- if (fit_image_get_load(fit_hdr, fdt_noffset,
- &load_start) == 0) {
- load_end = load_start + size;
-
- if ((load_start < image_end) &&
- (load_end > image_start)) {
- fdt_error("FDT overwritten");
- goto error;
- }
-
- printf(" Loading FDT from 0x%08lx "
- "to 0x%08lx\n",
- (ulong)data,
- load_start);
-
- memmove((void *)load_start,
- (void *)data, size);
-
- fdt_blob = (char *)load_start;
- } else {
- fdt_blob = (char *)data;
- }
-
- images->fit_hdr_fdt = fit_hdr;
+ images->fit_hdr_fdt = map_sysmem(fdt_addr, 0);
images->fit_uname_fdt = fit_uname_fdt;
images->fit_noffset_fdt = fdt_noffset;
+ fdt_addr = load;
break;
} else
#endif
@@ -541,7 +384,6 @@ int boot_get_fdt(int flag, int argc, char * const argv[],
/*
* FDT blob
*/
- fdt_blob = buf;
debug("* fdt: raw FDT blob\n");
printf("## Flattened Device Tree blob at "
"%08lx\n", (long)fdt_addr);
@@ -553,8 +395,8 @@ int boot_get_fdt(int flag, int argc, char * const argv[],
goto error;
}
- printf(" Booting using the fdt blob at 0x%p\n", fdt_blob);
-
+ printf(" Booting using the fdt blob at %#08lx\n", fdt_addr);
+ fdt_blob = map_sysmem(fdt_addr, 0);
} else if (images->legacy_hdr_valid &&
image_check_type(&images->legacy_hdr_os_copy,
IH_TYPE_MULTI)) {
diff --git a/common/image-fit.c b/common/image-fit.c
index 84462ec..5d07861 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -1412,25 +1412,6 @@ int fit_conf_get_kernel_node(const void *fit, int noffset)
}
/**
- * fit_conf_get_fdt_node - get fdt image node offset that corresponds to
- * a given configuration
- * @fit: pointer to the FIT format image header
- * @noffset: configuration node offset
- *
- * fit_conf_get_fdt_node() retrives fdt image node unit name from
- * configuration FIT_KERNEL_PROP property and translates it to the node
- * offset.
- *
- * returns:
- * image node offset when found (>=0)
- * negative number on failure (FDT_ERR_* code)
- */
-int fit_conf_get_fdt_node(const void *fit, int noffset)
-{
- return fit_conf_get_prop_node(fit, noffset, FIT_FDT_PROP);
-}
-
-/**
* fit_conf_print - prints out the FIT configuration details
* @fit: pointer to the FIT format image header
* @noffset: offset of the configuration node
diff --git a/include/image.h b/include/image.h
index 5357fe3..e19a92d 100644
--- a/include/image.h
+++ b/include/image.h
@@ -453,8 +453,9 @@ int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
ulong addr);
-int boot_get_fdt(int flag, int argc, char * const argv[],
- bootm_headers_t *images, char **of_flat_tree, ulong *of_size);
+int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
+ bootm_headers_t *images,
+ char **of_flat_tree, ulong *of_size);
void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob);
int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size);
@@ -761,7 +762,6 @@ int fit_check_format(const void *fit);
int fit_conf_find_compat(const void *fit, const void *fdt);
int fit_conf_get_node(const void *fit, const char *conf_uname);
int fit_conf_get_kernel_node(const void *fit, int noffset);
-int fit_conf_get_fdt_node(const void *fit, int noffset);
/**
* fit_conf_get_prop_node() - Get node refered to by a configuration
--
1.7.7.3
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