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drivers/mtd_spi_nor: fix Atmel size calculation

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Lower bits of the device ID are not the capacity in bytes but in sectors:

 4 - 4 Mb -> 32k << 4
 5 - 8 Mb -> 32k << 5
 …
This commit is contained in:
Benjamin Valentin 2022-02-23 18:10:55 +01:00
parent a20d8f67f5
commit 628855fead
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd_spi_nor/mtd_spi_nor.c
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@ -304,7 +304,8 @@ static uint32_t mtd_spi_nor_get_size(const mtd_jedec_id_t *id)
if (mtd_spi_manuf_match(id, SPI_NOR_JEDEC_ATMEL) &&
/* ID 2 is used to encode the product version, usually 1 or 2 */
(id->device[1] & ~0x3) == 0) {
return (0x1F & id->device[0]) * MBIT_AS_BYTES;
/* capacity encoded as power of 32k sectors */
return (32 * 1024) << (0x1F & id->device[0]);
}
if (mtd_spi_manuf_match(id, SPI_NOR_JEDEC_MICROCHIP)) {
switch (id->device[1]) {