sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drivers/mtd/gd25.c: Add support for GD25 device with 256-Mbit capacity.

Browse Source
This commit is contained in:
YanLin Zhu 2019-09-15 08:19:06 -06:00 committed by Gregory Nutt
parent 636d180219
commit 8b10b8ad25
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/mtd/gd25.c
View File

@ -107,12 +107,14 @@
#define GD25_JEDEC_CAPACITY_32MBIT 0x16 /* 1024x4096 = 32Mbit memory capacity */
#define GD25_JEDEC_CAPACITY_64MBIT 0x17 /* 2048x4096 = 64Mbit memory capacity */
#define GD25_JEDEC_CAPACITY_128MBIT 0x18 /* 4096x4096 = 128Mbit memory capacity */
#define GD25_JEDEC_CAPACITY_256MBIT 0x19 /* 8192x4096 = 256Mbit memory capacity */
#define GD25_NSECTORS_8MBIT 256 /* 256 sectors x 4096 bytes/sector = 1Mb */
#define GD25_NSECTORS_16MBIT 512 /* 512 sectors x 4096 bytes/sector = 2Mb */
#define GD25_NSECTORS_32MBIT 1024 /* 1024 sectors x 4096 bytes/sector = 4Mb */
#define GD25_NSECTORS_64MBIT 2048 /* 2048 sectors x 4096 bytes/sector = 8Mb */
#define GD25_NSECTORS_128MBIT 4096 /* 4096 sectors x 4096 bytes/sector = 16Mb */
#define GD25_NSECTORS_256MBIT 8192 /* 8192 sectors x 4096 bytes/sector = 32Mb */
/* Status register bit definitions */
@ -283,6 +285,10 @@ static inline int gd25_readid(struct gd25_dev_s *priv)
{
priv->nsectors = GD25_NSECTORS_128MBIT;
}
else if (capacity == GD25_JEDEC_CAPACITY_256MBIT)
{
priv->nsectors = GD25_NSECTORS_256MBIT;
}
else
{
return -ENODEV;