* [U-Boot] [PATCH v2 0/2] spl: Add support to load FIT from Filesystem
@ 2016-04-11 4:51 Lokesh Vutla
2016-04-11 4:51 ` [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS Lokesh Vutla
2016-04-11 4:51 ` [U-Boot] [PATCH v2 2/2] spl: Support loading a FIT from FAT FS Lokesh Vutla
0 siblings, 2 replies; 6+ messages in thread
From: Lokesh Vutla @ 2016-04-11 4:51 UTC (permalink / raw)
To: u-boot
Some devices like MMC, USB can be formatted to a FS and can act as a boot media.
Given that FIT image load support in SPL support only raw devices, SPL should
also be able to support loading FIT image from a File system.
This series add support to load FIT image from a filesystem and also adding
hooks to FAT FS.
Lokesh Vutla (2):
spl: Add an option to load a FIT containing U-Boot from FS
spl: Support loading a FIT from FAT FS
common/spl/spl_fat.c | 27 +++++++++-
common/spl/spl_fit.c | 146 +++++++++++++++++++++++++++++++++++++++++++--------
include/spl.h | 31 +++++++++++
3 files changed, 179 insertions(+), 25 deletions(-)
--
2.1.4
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS
2016-04-11 4:51 [U-Boot] [PATCH v2 0/2] spl: Add support to load FIT from Filesystem Lokesh Vutla
@ 2016-04-11 4:51 ` Lokesh Vutla
2016-04-11 5:41 ` Mugunthan V N
2016-04-14 5:05 ` Lokesh Vutla
2016-04-11 4:51 ` [U-Boot] [PATCH v2 2/2] spl: Support loading a FIT from FAT FS Lokesh Vutla
1 sibling, 2 replies; 6+ messages in thread
From: Lokesh Vutla @ 2016-04-11 4:51 UTC (permalink / raw)
To: u-boot
This provides a way to load a FIT containing U-Boot and a selection of device
tree files from a File system.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---
Changes since v1:
- Added comments for function declarations.
- Bring out the common code for parsing fit header.
common/spl/spl_fit.c | 146 +++++++++++++++++++++++++++++++++++++++++++--------
include/spl.h | 31 +++++++++++
2 files changed, 154 insertions(+), 23 deletions(-)
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index 1a5c027..a4ab67e 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -82,12 +82,42 @@ static int spl_fit_select_fdt(const void *fdt, int images, int *fdt_offsetp)
return -ENOENT;
}
+#define get_fit_size(fit) ALIGN(fdt_totalsize(fit), 4)
+
+static int spl_parse_fit_header(void *fit)
+{
+ int node;
+
+ spl_image.images = fdt_path_offset(fit, FIT_IMAGES_PATH);
+ if (spl_image.images < 0) {
+ debug("%s: Cannot find /images node: %d\n", __func__,
+ spl_image.images);
+ return -1;
+ }
+ node = fdt_first_subnode(fit, spl_image.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 */
+ spl_image.data_offset = fdt_getprop_u32(fit, node, "data-offset");
+ spl_image.data_size = fdt_getprop_u32(fit, node, "data-size");
+ spl_image.load_addr = fdt_getprop_u32(fit, node, "load");
+ debug("data_offset=%x, data_size=%x\n", spl_image.data_offset,
+ spl_image.data_size);
+ spl_image.entry_point = spl_image.load_addr;
+ spl_image.os = IH_OS_U_BOOT;
+
+ return 0;
+}
+
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;
+ int images, ret;
void *load_ptr;
int fdt_offset, fdt_len;
int data_offset, data_size;
@@ -99,9 +129,8 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
* 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;
+ size = get_fit_size(fit);
+ base_offset = size;
/*
* So far we only have one block of data from the FIT. Read the entire
@@ -125,26 +154,13 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
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);
+ ret = spl_parse_fit_header(fit);
+ if (ret < 0)
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;
+ data_offset = spl_image.data_offset;
+ data_size = spl_image.data_size;
+ load = spl_image.load_addr;
+ images = spl_image.images;
/*
* Work out where to place the image. We read it so that the first
@@ -192,3 +208,87 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
return 0;
}
+
+int spl_fs_load_simple_fit(struct spl_load_info *info, const char *filename,
+ void *fit)
+{
+ ulong size, load;
+ unsigned long count;
+ int images, ret;
+ void *load_ptr;
+ int fdt_offset, fdt_len;
+ int data_offset, data_size, file_offset;
+ int base_offset = 0, align_len;
+ void *dst;
+
+ /*
+ * Figure out where the external images start. This is the base for the
+ * data-offset properties in each image.
+ */
+ size = get_fit_size(fit);
+ base_offset = size;
+
+ /*
+ * Read the entire FIT header, placing it so it finishes before
+ * where we will load the image. Also the load address is aligned
+ * ARCH_DMA_MINALIGN.
+ */
+ align_len = ARCH_DMA_MINALIGN - 1;
+ fit = (void *)((CONFIG_SYS_TEXT_BASE - size - align_len) & ~align_len);
+ debug("FIT header read: destination = 0x%p, size = %lx\n", fit, size);
+ count = info->fs_read(info, filename, fit, 0, size);
+ if (count <= 0)
+ return -EIO;
+
+ ret = spl_parse_fit_header(fit);
+ if (ret < 0)
+ return -1;
+ data_offset = spl_image.data_offset;
+ data_size = spl_image.data_size;
+ load = spl_image.load_addr;
+ images = spl_image.images;
+
+ /*
+ * Work out where to place the image. Assuming load addr of u-boot.bin
+ * is always aligned to ARCH_DMA_MINALIGN. It is possible that file
+ * offset is not aligned. In order to make sure that the file read is
+ * dma aligned, align the file offset to dma with extra bytes in the
+ * beginning. Then do a memcpy of image to dst.
+ */
+ data_offset += base_offset;
+ file_offset = data_offset & ~align_len;
+ load_ptr = (void *)load;
+ dst = load_ptr;
+
+ /* Read the image */
+ debug("Temp u-boot.bin read from fit: dst = 0x%p, file offset = 0x%x, size = 0x%x\n",
+ dst, file_offset, data_size);
+ count = info->fs_read(info, filename, dst, file_offset, data_size);
+ if (count <= 0)
+ return -EIO;
+ debug("u-boot.bin load: dst = 0x%p, size = 0x%x\n", dst, data_size);
+ memcpy(dst, dst + (data_offset & align_len), 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. Making sure that
+ * load addr and file offset are aligned to dma.
+ */
+ dst = (void *)((load + data_size + align_len) & ~align_len);
+ fdt_offset += base_offset;
+ file_offset = fdt_offset & ~align_len;
+ debug("Temp fdt read from fit: dst = 0x%p, file offset = 0x%x, size = %d\n",
+ dst, file_offset, data_size);
+ count = info->fs_read(info, filename, dst, file_offset, data_size);
+ if (count <= 0)
+ return -EIO;
+ debug("fdt load: dst = 0x%p, size = 0x%x\n", load_ptr + data_size,
+ data_size);
+ memcpy(load_ptr + data_size, dst + (fdt_offset & align_len), data_size);
+
+ return 1;
+}
diff --git a/include/spl.h b/include/spl.h
index de4f70a..5f0b0db 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -27,6 +27,11 @@ struct spl_image_info {
u32 entry_point;
u32 size;
u32 flags;
+#ifdef CONFIG_SPL_LOAD_FIT
+ int data_offset;
+ int data_size;
+ int images;
+#endif
};
/*
@@ -36,6 +41,7 @@ struct spl_image_info {
* @priv: Private data for the device
* @bl_len: Block length for reading in bytes
* @read: Function to call to read from the device
+ * @fs_read: Function to call to read from a fs
*/
struct spl_load_info {
void *dev;
@@ -43,10 +49,35 @@ struct spl_load_info {
int bl_len;
ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
void *buf);
+ int (*fs_read)(struct spl_load_info *load, const char *filename,
+ void *buf, ulong file_offset, ulong size);
};
+/**
+ * spl_load_simple_fit() - Loads a fit image from a device.
+ * @info: Structure containing the information required to load data.
+ * @sector: Sector number where FIT image is located in the device
+ * @fdt: Pointer to the copied FIT header.
+ *
+ * Reads the FIT image @sector in the device. Loads u-boot image to
+ * specified load address and copies the dtb to end of u-boot image.
+ * Returns 0 on success.
+ */
int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fdt);
+/**
+ * spl_fs_load_simple_fit() - Loads a fit image from a file system.
+ * @info: Structure containing the information required to load data.
+ * @filename: Name of the FIT image in the file system.
+ * @fit: Pointer to the copied FIT header.
+ *
+ * Reads the FIT image in the filesystem. Loads u-boot image to
+ * specified load address and copies the dtb to end of u-boot image.
+ * Returns 1 on success.
+ */
+int spl_fs_load_simple_fit(struct spl_load_info *info, const char *filename,
+ void *fit);
+
#define SPL_COPY_PAYLOAD_ONLY 1
extern struct spl_image_info spl_image;
--
2.1.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 2/2] spl: Support loading a FIT from FAT FS
2016-04-11 4:51 [U-Boot] [PATCH v2 0/2] spl: Add support to load FIT from Filesystem Lokesh Vutla
2016-04-11 4:51 ` [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS Lokesh Vutla
@ 2016-04-11 4:51 ` Lokesh Vutla
2016-04-11 5:42 ` Mugunthan V N
1 sibling, 1 reply; 6+ messages in thread
From: Lokesh Vutla @ 2016-04-11 4:51 UTC (permalink / raw)
To: u-boot
Detect a FIT when loading from a FAT File system and handle it using the
new FIT SPL support.
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---
common/spl/spl_fat.c | 27 +++++++++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/common/spl/spl_fat.c b/common/spl/spl_fat.c
index d761b26..3784f1b 100644
--- a/common/spl/spl_fat.c
+++ b/common/spl/spl_fat.c
@@ -39,6 +39,19 @@ static int spl_register_fat_device(struct blk_desc *block_dev, int partition)
return err;
}
+static int h_spl_fit_read(struct spl_load_info *load, const char *filename,
+ void *buf, ulong file_offset, ulong size)
+{
+ loff_t actread;
+ int ret;
+
+ ret = fat_read_file(filename, buf, file_offset, size, &actread);
+ if (ret)
+ return ret;
+ else
+ return actread;
+}
+
int spl_load_image_fat(struct blk_desc *block_dev,
int partition,
const char *filename)
@@ -57,9 +70,19 @@ int spl_load_image_fat(struct blk_desc *block_dev,
if (err <= 0)
goto end;
- spl_parse_image_header(header);
+ if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) {
+ struct spl_load_info load;
- err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);
+ debug("Found FIT\n");
+ load.priv = NULL;
+ load.fs_read = h_spl_fit_read;
+
+ err = spl_fs_load_simple_fit(&load, filename, header);
+ } else {
+ spl_parse_image_header(header);
+
+ err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);
+ }
end:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
--
2.1.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS
2016-04-11 4:51 ` [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS Lokesh Vutla
@ 2016-04-11 5:41 ` Mugunthan V N
2016-04-14 5:05 ` Lokesh Vutla
1 sibling, 0 replies; 6+ messages in thread
From: Mugunthan V N @ 2016-04-11 5:41 UTC (permalink / raw)
To: u-boot
On Monday 11 April 2016 10:21 AM, Lokesh Vutla wrote:
> This provides a way to load a FIT containing U-Boot and a selection of device
> tree files from a File system.
>
> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Regards
Mugunthan V N
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 2/2] spl: Support loading a FIT from FAT FS
2016-04-11 4:51 ` [U-Boot] [PATCH v2 2/2] spl: Support loading a FIT from FAT FS Lokesh Vutla
@ 2016-04-11 5:42 ` Mugunthan V N
0 siblings, 0 replies; 6+ messages in thread
From: Mugunthan V N @ 2016-04-11 5:42 UTC (permalink / raw)
To: u-boot
On Monday 11 April 2016 10:21 AM, Lokesh Vutla wrote:
> Detect a FIT when loading from a FAT File system and handle it using the
> new FIT SPL support.
>
> Reviewed-by: Tom Rini <trini@konsulko.com>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Regards
Mugunthan V N
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS
2016-04-11 4:51 ` [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS Lokesh Vutla
2016-04-11 5:41 ` Mugunthan V N
@ 2016-04-14 5:05 ` Lokesh Vutla
1 sibling, 0 replies; 6+ messages in thread
From: Lokesh Vutla @ 2016-04-14 5:05 UTC (permalink / raw)
To: u-boot
On Monday 11 April 2016 10:21 AM, Lokesh Vutla wrote:
> This provides a way to load a FIT containing U-Boot and a selection of device
> tree files from a File system.
>
> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
> ---
> Changes since v1:
> - Added comments for function declarations.
> - Bring out the common code for parsing fit header.
>
> common/spl/spl_fit.c | 146 +++++++++++++++++++++++++++++++++++++++++++--------
> include/spl.h | 31 +++++++++++
> 2 files changed, 154 insertions(+), 23 deletions(-)
>
> diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
> index 1a5c027..a4ab67e 100644
> --- a/common/spl/spl_fit.c
> +++ b/common/spl/spl_fit.c
> @@ -82,12 +82,42 @@ static int spl_fit_select_fdt(const void *fdt, int images, int *fdt_offsetp)
> return -ENOENT;
> }
>
> +#define get_fit_size(fit) ALIGN(fdt_totalsize(fit), 4)
> +
> +static int spl_parse_fit_header(void *fit)
> +{
> + int node;
> +
> + spl_image.images = fdt_path_offset(fit, FIT_IMAGES_PATH);
> + if (spl_image.images < 0) {
> + debug("%s: Cannot find /images node: %d\n", __func__,
> + spl_image.images);
> + return -1;
> + }
> + node = fdt_first_subnode(fit, spl_image.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 */
> + spl_image.data_offset = fdt_getprop_u32(fit, node, "data-offset");
> + spl_image.data_size = fdt_getprop_u32(fit, node, "data-size");
> + spl_image.load_addr = fdt_getprop_u32(fit, node, "load");
> + debug("data_offset=%x, data_size=%x\n", spl_image.data_offset,
> + spl_image.data_size);
> + spl_image.entry_point = spl_image.load_addr;
> + spl_image.os = IH_OS_U_BOOT;
> +
> + return 0;
> +}
> +
> 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;
> + int images, ret;
> void *load_ptr;
> int fdt_offset, fdt_len;
> int data_offset, data_size;
> @@ -99,9 +129,8 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
> * 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;
> + size = get_fit_size(fit);
> + base_offset = size;
>
> /*
> * So far we only have one block of data from the FIT. Read the entire
> @@ -125,26 +154,13 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
> 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);
> + ret = spl_parse_fit_header(fit);
> + if (ret < 0)
> 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;
> + data_offset = spl_image.data_offset;
> + data_size = spl_image.data_size;
> + load = spl_image.load_addr;
> + images = spl_image.images;
>
> /*
> * Work out where to place the image. We read it so that the first
> @@ -192,3 +208,87 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
>
> return 0;
> }
> +
> +int spl_fs_load_simple_fit(struct spl_load_info *info, const char *filename,
> + void *fit)
> +{
> + ulong size, load;
> + unsigned long count;
> + int images, ret;
> + void *load_ptr;
> + int fdt_offset, fdt_len;
> + int data_offset, data_size, file_offset;
> + int base_offset = 0, align_len;
> + void *dst;
> +
> + /*
> + * Figure out where the external images start. This is the base for the
> + * data-offset properties in each image.
> + */
> + size = get_fit_size(fit);
> + base_offset = size;
> +
> + /*
> + * Read the entire FIT header, placing it so it finishes before
> + * where we will load the image. Also the load address is aligned
> + * ARCH_DMA_MINALIGN.
> + */
> + align_len = ARCH_DMA_MINALIGN - 1;
> + fit = (void *)((CONFIG_SYS_TEXT_BASE - size - align_len) & ~align_len);
> + debug("FIT header read: destination = 0x%p, size = %lx\n", fit, size);
> + count = info->fs_read(info, filename, fit, 0, size);
> + if (count <= 0)
> + return -EIO;
> +
> + ret = spl_parse_fit_header(fit);
> + if (ret < 0)
> + return -1;
> + data_offset = spl_image.data_offset;
> + data_size = spl_image.data_size;
> + load = spl_image.load_addr;
> + images = spl_image.images;
> +
> + /*
> + * Work out where to place the image. Assuming load addr of u-boot.bin
> + * is always aligned to ARCH_DMA_MINALIGN. It is possible that file
> + * offset is not aligned. In order to make sure that the file read is
> + * dma aligned, align the file offset to dma with extra bytes in the
> + * beginning. Then do a memcpy of image to dst.
> + */
> + data_offset += base_offset;
> + file_offset = data_offset & ~align_len;
> + load_ptr = (void *)load;
> + dst = load_ptr;
> +
> + /* Read the image */
> + debug("Temp u-boot.bin read from fit: dst = 0x%p, file offset = 0x%x, size = 0x%x\n",
> + dst, file_offset, data_size);
> + count = info->fs_read(info, filename, dst, file_offset, data_size);
After doing a bit more testing, found a bug in the number of bytes being
copied. It should be data_size + extra overhead of the file offset. Will
repost it.
Thanks and regards,
Lokesh
> + if (count <= 0)
> + return -EIO;
> + debug("u-boot.bin load: dst = 0x%p, size = 0x%x\n", dst, data_size);
> + memcpy(dst, dst + (data_offset & align_len), 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. Making sure that
> + * load addr and file offset are aligned to dma.
> + */
> + dst = (void *)((load + data_size + align_len) & ~align_len);
> + fdt_offset += base_offset;
> + file_offset = fdt_offset & ~align_len;
> + debug("Temp fdt read from fit: dst = 0x%p, file offset = 0x%x, size = %d\n",
> + dst, file_offset, data_size);
> + count = info->fs_read(info, filename, dst, file_offset, data_size);
> + if (count <= 0)
> + return -EIO;
> + debug("fdt load: dst = 0x%p, size = 0x%x\n", load_ptr + data_size,
> + data_size);
> + memcpy(load_ptr + data_size, dst + (fdt_offset & align_len), data_size);
> +
> + return 1;
> +}
> diff --git a/include/spl.h b/include/spl.h
> index de4f70a..5f0b0db 100644
> --- a/include/spl.h
> +++ b/include/spl.h
> @@ -27,6 +27,11 @@ struct spl_image_info {
> u32 entry_point;
> u32 size;
> u32 flags;
> +#ifdef CONFIG_SPL_LOAD_FIT
> + int data_offset;
> + int data_size;
> + int images;
> +#endif
> };
>
> /*
> @@ -36,6 +41,7 @@ struct spl_image_info {
> * @priv: Private data for the device
> * @bl_len: Block length for reading in bytes
> * @read: Function to call to read from the device
> + * @fs_read: Function to call to read from a fs
> */
> struct spl_load_info {
> void *dev;
> @@ -43,10 +49,35 @@ struct spl_load_info {
> int bl_len;
> ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
> void *buf);
> + int (*fs_read)(struct spl_load_info *load, const char *filename,
> + void *buf, ulong file_offset, ulong size);
> };
>
> +/**
> + * spl_load_simple_fit() - Loads a fit image from a device.
> + * @info: Structure containing the information required to load data.
> + * @sector: Sector number where FIT image is located in the device
> + * @fdt: Pointer to the copied FIT header.
> + *
> + * Reads the FIT image @sector in the device. Loads u-boot image to
> + * specified load address and copies the dtb to end of u-boot image.
> + * Returns 0 on success.
> + */
> int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fdt);
>
> +/**
> + * spl_fs_load_simple_fit() - Loads a fit image from a file system.
> + * @info: Structure containing the information required to load data.
> + * @filename: Name of the FIT image in the file system.
> + * @fit: Pointer to the copied FIT header.
> + *
> + * Reads the FIT image in the filesystem. Loads u-boot image to
> + * specified load address and copies the dtb to end of u-boot image.
> + * Returns 1 on success.
> + */
> +int spl_fs_load_simple_fit(struct spl_load_info *info, const char *filename,
> + void *fit);
> +
> #define SPL_COPY_PAYLOAD_ONLY 1
>
> extern struct spl_image_info spl_image;
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-04-14 5:05 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-04-11 4:51 [U-Boot] [PATCH v2 0/2] spl: Add support to load FIT from Filesystem Lokesh Vutla
2016-04-11 4:51 ` [U-Boot] [PATCH v2 1/2] spl: Add an option to load a FIT containing U-Boot from FS Lokesh Vutla
2016-04-11 5:41 ` Mugunthan V N
2016-04-14 5:05 ` Lokesh Vutla
2016-04-11 4:51 ` [U-Boot] [PATCH v2 2/2] spl: Support loading a FIT from FAT FS Lokesh Vutla
2016-04-11 5:42 ` Mugunthan V N
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