return (data_size + info->bl_len - 1) / info->bl_len;
}
+/**
+ * spl_load_fit_image(): load the image described in a certain FIT node
+ * @info: points to information about the device to load data from
+ * @sector: the start sector of the FIT image on the device
+ * @fit: points to the flattened device tree blob describing the FIT
+ * image
+ * @base_offset: the beginning of the data area containing the actual
+ * image data, relative to the beginning of the FIT
+ * @node: offset of the DT node describing the image to load (relative
+ * to @fit)
+ * @image_info: will be filled with information about the loaded image
+ * If the FIT node does not contain a "load" (address) property,
+ * the image gets loaded to the address pointed to by the
+ * load_addr member in this struct.
+ *
+ * Return: 0 on success or a negative error number.
+ */
+static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
+ void *fit, ulong base_offset, int node,
+ struct spl_image_info *image_info)
+{
+ ulong offset;
+ size_t length;
+ ulong load_addr, load_ptr;
+ void *src;
+ ulong overhead;
+ int nr_sectors;
+ int align_len = ARCH_DMA_MINALIGN - 1;
+
+ offset = fdt_getprop_u32(fit, node, "data-offset");
+ if (offset == FDT_ERROR)
+ return -ENOENT;
+ offset += base_offset;
+ length = fdt_getprop_u32(fit, node, "data-size");
+ if (length == FDT_ERROR)
+ return -ENOENT;
+ load_addr = fdt_getprop_u32(fit, node, "load");
+ if (load_addr == FDT_ERROR && image_info)
+ load_addr = image_info->load_addr;
+ load_ptr = (load_addr + align_len) & ~align_len;
+
+ overhead = get_aligned_image_overhead(info, offset);
+ nr_sectors = get_aligned_image_size(info, length, offset);
+
+ if (info->read(info, sector + get_aligned_image_offset(info, offset),
+ nr_sectors, (void*)load_ptr) != nr_sectors)
+ return -EIO;
+ debug("image: dst=%lx, offset=%lx, size=%lx\n", load_ptr, offset,
+ (unsigned long)length);
+
+ src = (void *)load_ptr + overhead;
+#ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS
+ board_fit_image_post_process(&src, &length);
+#endif
+
+ memcpy((void*)load_addr, src, length);
+
+ if (image_info) {
+ image_info->load_addr = load_addr;
+ image_info->size = length;
+ image_info->entry_point = fdt_getprop_u32(fit, node, "entry");
+ }
+
+ return 0;
+}
+
int spl_load_simple_fit(struct spl_image_info *spl_image,
struct spl_load_info *info, ulong sector, void *fit)
{
int sectors;
- ulong size, load;
+ ulong size;
unsigned long count;
- int node, images;
- void *load_ptr;
- int fdt_offset, fdt_len;
- int data_offset, data_size;
+ struct spl_image_info image_info;
+ int node, images, ret;
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
return -1;
}
- /* Get its information and set up the spl_image structure */
- data_offset = fdt_getprop_u32(fit, node, "data-offset");
- if (data_offset == FDT_ERROR)
- return -ENOENT;
- data_size = fdt_getprop_u32(fit, node, "data-size");
- if (data_size == FDT_ERROR)
- return -ENOENT;
- 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);
+ /* 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;
-#ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS
- board_fit_image_post_process((void **)&src, (size_t *)&data_size);
-#endif
-
- memcpy(dst, src, data_size);
+ spl_image->os = IH_OS_U_BOOT;
/* Figure out which device tree the board wants to use */
node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, 0);
debug("%s: cannot find FDT node\n", __func__);
return node;
}
- fdt_offset = fdt_getprop_u32(fit, node, "data-offset");
- fdt_len = fdt_getprop_u32(fit, node, "data-size");
- if (fdt_offset == FDT_ERROR || fdt_len == FDT_ERROR) {
- debug("%s: cannot load FDT data\n" __func__);
- return -ENOENT;
- }
/*
- * 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.
+ * Read the device tree and place it after the image.
+ * 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;
+ image_info.load_addr = spl_image->load_addr + spl_image->size;
+ return spl_load_fit_image(info, sector, fit, base_offset, node,
+ &image_info);
}
projects / u-boot / blobdiff