From 33846df28fa1f4cf96a96c18142d48d813caa892 Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Wed, 11 Feb 2009 18:38:23 +0100 Subject: 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 Signed-off-by: Scott Wood --- include/linux/mtd/fsl_upm.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mtd/fsl_upm.h b/include/linux/mtd/fsl_upm.h index 10f5ddd87..5d7156fac 100644 --- a/include/linux/mtd/fsl_upm.h +++ b/include/linux/mtd/fsl_upm.h @@ -15,6 +15,10 @@ #include +#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; -- cgit v1.2.3