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authorTom Rini <trini@konsulko.com>2021-03-29 17:53:19 -0400
committerTom Rini <trini@konsulko.com>2021-03-29 18:00:21 -0400
commit1057b1be75386e3513dca392d8258e01e5cccc01 (patch)
treea1cbdc677c070064177e1d9defeb1fb4ab30ad6e /drivers/mtd
parent4906238191b90be7aec2269ba8cd6aeb161cd312 (diff)
parentd8eafb16c85bc3b5d85d7ba8ebb1438cc0ae168f (diff)
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Merge tag 'v2021.04-rc5' into nextWIP/29Mar2021-next
Prepare v2021.04-rc5
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/fsl_ifc_nand.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/mtd/nand/raw/fsl_ifc_nand.c b/drivers/mtd/nand/raw/fsl_ifc_nand.c
index cf20238..e5ff937 100644
--- a/drivers/mtd/nand/raw/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_ifc_nand.c
@@ -411,9 +411,16 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
/* READID must read all possible bytes while CEB is active */
case NAND_CMD_READID:
case NAND_CMD_PARAM: {
+ /*
+ * For READID, read 8 bytes that are currently used.
+ * For PARAM, read all 3 copies of 256-bytes pages.
+ */
+ int len = 8;
int timing = IFC_FIR_OP_RB;
- if (command == NAND_CMD_PARAM)
+ if (command == NAND_CMD_PARAM) {
timing = IFC_FIR_OP_RBCD;
+ len = 256 * 3;
+ }
ifc_out32(&ifc->ifc_nand.nand_fir0,
(IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
@@ -423,12 +430,8 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
command << IFC_NAND_FCR0_CMD0_SHIFT);
ifc_out32(&ifc->ifc_nand.row3, column);
- /*
- * although currently it's 8 bytes for READID, we always read
- * the maximum 256 bytes(for PARAM)
- */
- ifc_out32(&ifc->ifc_nand.nand_fbcr, 256);
- ctrl->read_bytes = 256;
+ ifc_out32(&ifc->ifc_nand.nand_fbcr, len);
+ ctrl->read_bytes = len;
set_addr(mtd, 0, 0, 0);
fsl_ifc_run_command(mtd);