mtd: nand: Add a few more timings to nand_sdr_timings

Add the tR_max, tBERS_max, tPROG_max and tCCS_min timings to the
nand_sdr_timings struct.
Assign default/safe values for the statically defined timings, and
extract them from the ONFI parameter table if the NAND is ONFI
compliant.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c5d3d5024fc8..6fe83bce83a6 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -584,6 +584,10 @@ struct nand_buffers {
  *
  * All these timings are expressed in picoseconds.
  *
+ * @tBERS_max: Block erase time
+ * @tCCS_min: Change column setup time
+ * @tPROG_max: Page program time
+ * @tR_max: Page read time
  * @tALH_min: ALE hold time
  * @tADL_min: ALE to data loading time
  * @tALS_min: ALE setup time
@@ -621,6 +625,10 @@ struct nand_buffers {
  * @tWW_min: WP# transition to WE# low
  */
 struct nand_sdr_timings {
+        u32 tBERS_max;
+        u32 tCCS_min;
+        u32 tPROG_max;
+        u32 tR_max;
         u32 tALH_min;
         u32 tADL_min;
         u32 tALS_min;