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path: root/drivers/mtd/spi-nor/sfdp.c
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Diffstat (limited to 'drivers/mtd/spi-nor/sfdp.c')
-rw-r--r--drivers/mtd/spi-nor/sfdp.c47
1 files changed, 16 insertions, 31 deletions
diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index 57713de328..5b1117265b 100644
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -389,19 +389,15 @@ static u8 spi_nor_sort_erase_mask(struct spi_nor_erase_map *map, u8 erase_mask)
static void spi_nor_regions_sort_erase_types(struct spi_nor_erase_map *map)
{
struct spi_nor_erase_region *region = map->regions;
- u8 region_erase_mask, sorted_erase_mask;
+ u8 sorted_erase_mask;
+ unsigned int i;
- while (region) {
- region_erase_mask = region->offset & SNOR_ERASE_TYPE_MASK;
-
- sorted_erase_mask = spi_nor_sort_erase_mask(map,
- region_erase_mask);
+ for (i = 0; i < map->n_regions; i++) {
+ sorted_erase_mask =
+ spi_nor_sort_erase_mask(map, region[i].erase_mask);
/* Overwrite erase mask. */
- region->offset = (region->offset & ~SNOR_ERASE_TYPE_MASK) |
- sorted_erase_mask;
-
- region = spi_nor_region_next(region);
+ region[i].erase_mask = sorted_erase_mask;
}
}
@@ -554,8 +550,6 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor,
* selecting the uniform erase.
*/
spi_nor_regions_sort_erase_types(map);
- map->uniform_erase_type = map->uniform_region.offset &
- SNOR_ERASE_TYPE_MASK;
/* Stop here if not JESD216 rev A or later. */
if (bfpt_header->length == BFPT_DWORD_MAX_JESD216)
@@ -806,16 +800,6 @@ out:
return ret;
}
-static void spi_nor_region_mark_end(struct spi_nor_erase_region *region)
-{
- region->offset |= SNOR_LAST_REGION;
-}
-
-static void spi_nor_region_mark_overlay(struct spi_nor_erase_region *region)
-{
- region->offset |= SNOR_OVERLAID_REGION;
-}
-
/**
* spi_nor_region_check_overlay() - set overlay bit when the region is overlaid
* @region: pointer to a structure that describes a SPI NOR erase region
@@ -833,7 +817,7 @@ spi_nor_region_check_overlay(struct spi_nor_erase_region *region,
if (!(erase[i].size && erase_type & BIT(erase[i].idx)))
continue;
if (region->size & erase[i].size_mask) {
- spi_nor_region_mark_overlay(region);
+ region->overlaid = true;
return;
}
}
@@ -868,6 +852,7 @@ static int spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
if (!region)
return -ENOMEM;
map->regions = region;
+ map->n_regions = region_count;
uniform_erase_type = 0xff;
regions_erase_type = 0;
@@ -875,9 +860,10 @@ static int spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
/* Populate regions. */
for (i = 0; i < region_count; i++) {
j = i + 1; /* index for the region dword */
+ region[i].offset = offset;
region[i].size = SMPT_MAP_REGION_SIZE(smpt[j]);
erase_type = SMPT_MAP_REGION_ERASE_TYPE(smpt[j]);
- region[i].offset = offset | erase_type;
+ region[i].erase_mask = erase_type;
spi_nor_region_check_overlay(&region[i], erase, erase_type);
@@ -893,21 +879,20 @@ static int spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
*/
regions_erase_type |= erase_type;
- offset = (region[i].offset & ~SNOR_ERASE_FLAGS_MASK) +
- region[i].size;
+ offset = region[i].offset + region[i].size;
}
- spi_nor_region_mark_end(&region[i - 1]);
- save_uniform_erase_type = map->uniform_erase_type;
- map->uniform_erase_type = spi_nor_sort_erase_mask(map,
- uniform_erase_type);
+ save_uniform_erase_type = map->uniform_region.erase_mask;
+ map->uniform_region.erase_mask =
+ spi_nor_sort_erase_mask(map,
+ uniform_erase_type);
if (!regions_erase_type) {
/*
* Roll back to the previous uniform_erase_type mask, SMPT is
* broken.
*/
- map->uniform_erase_type = save_uniform_erase_type;
+ map->uniform_region.erase_mask = save_uniform_erase_type;
return -EINVAL;
}