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| author | Wolfgang Grandegger <wg@grandegger.com> | 2009-02-11 18:38:23 +0100 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2009-03-23 15:53:40 -0500 |
| commit | 33846df28fa1f4cf96a96c18142d48d813caa892 (patch) | |
| tree | 12db31d9d2321af9c1a4e728eb070d4b4c372e1c /include/linux | |
| parent | 06e9f7df054d26d7f49c56bf9a6844b193ad6313 (diff) | |
| download | u-boot-imx-33846df28fa1f4cf96a96c18142d48d813caa892.zip u-boot-imx-33846df28fa1f4cf96a96c18142d48d813caa892.tar.gz u-boot-imx-33846df28fa1f4cf96a96c18142d48d813caa892.tar.bz2 | |
Add wait flags to support board/chip specific delays
The NAND flash on the TQM8548_BE modules requires a short delay after
running the UPM pattern like the MPC8360ERDK board does. The TQM8548_BE
requires a further short delay after writing out a buffer. Normally the
R/B pin should be checked, but it's not connected on the TQM8548_BE.
The corresponding Linux FSL UPM driver uses similar delay points at the
same locations. To manage these extra delays in a more general way, I
introduced the "wait_flags" field allowing the board-specific driver to
specify various types of extra delay.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/fsl_upm.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/mtd/fsl_upm.h b/include/linux/mtd/fsl_upm.h index 10f5ddd..5d7156f 100644 --- a/include/linux/mtd/fsl_upm.h +++ b/include/linux/mtd/fsl_upm.h @@ -15,6 +15,10 @@ #include <linux/mtd/nand.h> +#define FSL_UPM_WAIT_RUN_PATTERN 0x1 +#define FSL_UPM_WAIT_WRITE_BYTE 0x2 +#define FSL_UPM_WAIT_WRITE_BUFFER 0x4 + struct fsl_upm { void __iomem *mdr; void __iomem *mxmr; @@ -29,7 +33,7 @@ struct fsl_upm_nand { int upm_cmd_offset; int upm_addr_offset; int upm_mar_chip_offset; - int wait_pattern; + int wait_flags; int (*dev_ready)(int chip_nr); int chip_delay; int chip_offset; |