You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@nuttx.apache.org by pk...@apache.org on 2022/11/17 05:22:51 UTC
[incubator-nuttx] branch master updated: driver/mtd: add support for mx25l16 serial flash
This is an automated email from the ASF dual-hosted git repository.
pkarashchenko pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new 5a367ad59d driver/mtd: add support for mx25l16 serial flash
5a367ad59d is described below
commit 5a367ad59d858d91eaba6999b5dd25ada48c7074
Author: Hang Fan <fa...@xiaomi.com>
AuthorDate: Mon Nov 14 17:25:14 2022 +0800
driver/mtd: add support for mx25l16 serial flash
Signed-off-by: Hang Fan <fa...@xiaomi.com>
---
drivers/mtd/mx25lx.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/mx25lx.c b/drivers/mtd/mx25lx.c
index 21b4024c2a..9848ebfc80 100644
--- a/drivers/mtd/mx25lx.c
+++ b/drivers/mtd/mx25lx.c
@@ -64,6 +64,12 @@
/* Chip Geometries **********************************************************/
+/* MX25L1606E capacity is 16Mbit (2048Kbit x 8) = 2Mb (256kb x 8) */
+
+#define MX25L_MX25L1606E_SECTOR_SHIFT 12 /* Sector size 1 << 12 = 4Kb */
+#define MX25L_MX25L1606E_NSECTORS 512
+#define MX25L_MX25L1606E_PAGE_SHIFT 8 /* Page size 1 << 8 = 256 */
+
/* MX25L3233F capacity is 32Mbit (4096Kbit x 8) = 4Mb (512kb x 8) */
#define MX25L_MX25L3233F_SECTOR_SHIFT 12 /* Sector size 1 << 12 = 4Kb */
@@ -177,6 +183,8 @@
#define MX25L_JEDEC_MANUFACTURER 0xc2 /* Macronix manufacturer ID */
#define MX25L_JEDEC_MEMORY_TYPE 0x20 /* MX25Lx memory type */
+
+#define MX25L_JEDEC_MX25L1606E_CAPACITY 0x15 /* MX25L1606E memory capacity */
#define MX25L_JEDEC_MX25L3233F_CAPACITY 0x16 /* MX25L3233F memory capacity */
#define MX25L_JEDEC_MX25L6433F_CAPACITY 0x17 /* MX25L6433F memory capacity */
#define MX25L_JEDEC_MX25L25635F_CAPACITY 0x19 /* MX25L25635F memory capacity */
@@ -368,7 +376,17 @@ static inline int mx25l_readid(FAR struct mx25l_dev_s *priv)
{
/* Okay.. is it a FLASH capacity that we understand? */
- if (capacity == MX25L_JEDEC_MX25L3233F_CAPACITY)
+ if (capacity == MX25L_JEDEC_MX25L1606E_CAPACITY)
+ {
+ /* Save the FLASH geometry */
+
+ priv->sectorshift = MX25L_MX25L1606E_SECTOR_SHIFT;
+ priv->nsectors = MX25L_MX25L1606E_NSECTORS;
+ priv->pageshift = MX25L_MX25L1606E_PAGE_SHIFT;
+ priv->addressbytes = MX25L_ADDRESSBYTES_3;
+ return OK;
+ }
+ else if (capacity == MX25L_JEDEC_MX25L3233F_CAPACITY)
{
/* Save the FLASH geometry */