mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
mtd: gpmi: imx6: fix the wrong method for checking ready/busy
In the imx6, all the ready/busy pins are binding togeter. So we should always check the ready/busy pin of the chip 0. In the other word, when the CS1 is enabled, we should also check the ready/busy of chip 0; if we check the ready/busy of chip 1, we will get the wrong result. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
parent
a5370e9ed5
commit
7caa4fd290
1 changed files with 7 additions and 0 deletions
|
@ -1079,6 +1079,13 @@ int gpmi_is_ready(struct gpmi_nand_data *this, unsigned chip)
|
|||
mask = MX23_BM_GPMI_DEBUG_READY0 << chip;
|
||||
reg = readl(r->gpmi_regs + HW_GPMI_DEBUG);
|
||||
} else if (GPMI_IS_MX28(this) || GPMI_IS_MX6Q(this)) {
|
||||
/*
|
||||
* In the imx6, all the ready/busy pins are bound
|
||||
* together. So we only need to check chip 0.
|
||||
*/
|
||||
if (GPMI_IS_MX6Q(this))
|
||||
chip = 0;
|
||||
|
||||
/* MX28 shares the same R/B register as MX6Q. */
|
||||
mask = MX28_BF_GPMI_STAT_READY_BUSY(1 << chip);
|
||||
reg = readl(r->gpmi_regs + HW_GPMI_STAT);
|
||||
|
|
Loading…
Reference in a new issue