diff options
Diffstat (limited to 'drivers/fwu-mdata/raw_mtd.c')
| -rw-r--r-- | drivers/fwu-mdata/raw_mtd.c | 68 |
1 files changed, 43 insertions, 25 deletions
diff --git a/drivers/fwu-mdata/raw_mtd.c b/drivers/fwu-mdata/raw_mtd.c index 9f3f1dc..78a709f 100644 --- a/drivers/fwu-mdata/raw_mtd.c +++ b/drivers/fwu-mdata/raw_mtd.c @@ -12,22 +12,11 @@ #include <linux/errno.h> #include <linux/types.h> -/* Internal helper structure to move data around */ -struct fwu_mdata_mtd_priv { - struct mtd_info *mtd; - char pri_label[50]; - char sec_label[50]; - u32 pri_offset; - u32 sec_offset; -}; - enum fwu_mtd_op { FWU_MTD_READ, FWU_MTD_WRITE, }; -extern struct fwu_mtd_image_info fwu_mtd_images[]; - static bool mtd_is_aligned_with_block_size(struct mtd_info *mtd, u64 size) { return !do_div(size, mtd->erasesize); @@ -134,7 +123,7 @@ static int flash_partition_offset(struct udevice *dev, const char *part_name, fd return (int)size; } -static int fwu_mdata_mtd_of_to_plat(struct udevice *dev) +static int get_fwu_mdata_dev(struct udevice *dev) { struct fwu_mdata_mtd_priv *mtd_priv = dev_get_priv(dev); const fdt32_t *phandle_p = NULL; @@ -144,8 +133,6 @@ static int fwu_mdata_mtd_of_to_plat(struct udevice *dev) fdt_addr_t offset; int ret, size; u32 phandle; - ofnode bank; - int off_img; /* Find the FWU mdata storage device */ phandle_p = ofnode_get_property(dev_ofnode(dev), @@ -199,8 +186,28 @@ static int fwu_mdata_mtd_of_to_plat(struct udevice *dev) return ret; mtd_priv->sec_offset = offset; - off_img = 0; + return 0; +} + +static int fwu_mtd_image_info_populate(struct udevice *dev, u8 nbanks, + u16 nimages) +{ + struct fwu_mtd_image_info *mtd_images; + struct fwu_mdata_mtd_priv *mtd_priv = dev_get_priv(dev); + struct udevice *mtd_dev = mtd_priv->mtd->dev; + fdt_addr_t offset; + ofnode bank; + int off_img; + u32 total_images; + total_images = nbanks * nimages; + mtd_priv->fwu_mtd_images = malloc(sizeof(struct fwu_mtd_image_info) * + total_images); + if (!mtd_priv->fwu_mtd_images) + return -ENOMEM; + + off_img = 0; + mtd_images = mtd_priv->fwu_mtd_images; ofnode_for_each_subnode(bank, dev_ofnode(dev)) { int bank_num, bank_offset, bank_size; const char *bank_name; @@ -219,8 +226,7 @@ static int fwu_mdata_mtd_of_to_plat(struct udevice *dev) int image_num, image_offset, image_size; const char *uuid; - if (off_img == CONFIG_FWU_NUM_BANKS * - CONFIG_FWU_NUM_IMAGES_PER_BANK) { + if (off_img == total_images) { log_err("DT provides more images than configured!\n"); break; } @@ -230,11 +236,11 @@ static int fwu_mdata_mtd_of_to_plat(struct udevice *dev) ofnode_read_u32(image, "offset", &image_offset); ofnode_read_u32(image, "size", &image_size); - fwu_mtd_images[off_img].start = bank_offset + image_offset; - fwu_mtd_images[off_img].size = image_size; - fwu_mtd_images[off_img].bank_num = bank_num; - fwu_mtd_images[off_img].image_num = image_num; - strcpy(fwu_mtd_images[off_img].uuidbuf, uuid); + mtd_images[off_img].start = bank_offset + image_offset; + mtd_images[off_img].size = image_size; + mtd_images[off_img].bank_num = bank_num; + mtd_images[off_img].image_num = image_num; + strcpy(mtd_images[off_img].uuidbuf, uuid); log_debug("\tImage%d: %s @0x%x\n\n", image_num, uuid, bank_offset + image_offset); off_img++; @@ -246,8 +252,21 @@ static int fwu_mdata_mtd_of_to_plat(struct udevice *dev) static int fwu_mdata_mtd_probe(struct udevice *dev) { - /* Ensure the metadata can be read. */ - return fwu_get_mdata(NULL); + u8 nbanks; + u16 nimages; + int ret; + + ret = get_fwu_mdata_dev(dev); + if (ret) + return ret; + + nbanks = CONFIG_FWU_NUM_BANKS; + nimages = CONFIG_FWU_NUM_IMAGES_PER_BANK; + ret = fwu_mtd_image_info_populate(dev, nbanks, nimages); + if (ret) + return ret; + + return 0; } static struct fwu_mdata_ops fwu_mtd_ops = { @@ -266,6 +285,5 @@ U_BOOT_DRIVER(fwu_mdata_mtd) = { .of_match = fwu_mdata_ids, .ops = &fwu_mtd_ops, .probe = fwu_mdata_mtd_probe, - .of_to_plat = fwu_mdata_mtd_of_to_plat, .priv_auto = sizeof(struct fwu_mdata_mtd_priv), }; |