| Message ID | 1510020970-11282-1-git-send-email-wilson.lee@ni.com |
|---|---|
| State | Accepted |
| Delegated to: | Michal Simek |
| Headers | show |
| Series | [U-Boot,RESEND] mtd: nand: zynq: Add support for the NAND lock/unlock operation | expand |
On 7.11.2017 03:16, Wilson Lee wrote: > From: Joe Hershberger <joe.hershberger@ni.com> > > Zynq NAND driver is not support for NAND lock or unlock operation. > Hence, accidentally write into the critical NAND region might cause > data corruption to occur. > > This commit is to add NAND lock/unlock command into NAND SMC register > set for NAND lock/unlock operaion. > > Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> > Signed-off-by: Keng Soon Cheah <keng.soon.cheah@ni.com> > Cc: Chen Yee Chew <chen.yee.chew@ni.com> > Cc: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> > Cc: Michal Simek <michal.simek@xilinx.com> > Cc: Scott Wood <oss@buserror.net> > --- > drivers/mtd/nand/zynq_nand.c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) Applied. Thanks, Michal
diff --git a/drivers/mtd/nand/zynq_nand.c b/drivers/mtd/nand/zynq_nand.c index 948f059..484f1bb 100644 --- a/drivers/mtd/nand/zynq_nand.c +++ b/drivers/mtd/nand/zynq_nand.c @@ -81,6 +81,13 @@ #define ZYNQ_NAND_ECC_BUSY (1 << 6) /* ECC block is busy */ #define ZYNQ_NAND_ECC_MASK 0x00FFFFFF /* ECC value mask */ +#ifndef NAND_CMD_LOCK_TIGHT +#define NAND_CMD_LOCK_TIGHT 0x2c +#endif + +#ifndef NAND_CMD_LOCK_STATUS +#define NAND_CMD_LOCK_STATUS 0x7a +#endif /* SMC register set */ struct zynq_nand_smc_regs { @@ -141,6 +148,11 @@ static const struct zynq_nand_command_format zynq_nand_commands[] = { {NAND_CMD_PARAM, NAND_CMD_NONE, 1, 0}, {NAND_CMD_GET_FEATURES, NAND_CMD_NONE, 1, 0}, {NAND_CMD_SET_FEATURES, NAND_CMD_NONE, 1, 0}, + {NAND_CMD_LOCK, NAND_CMD_NONE, 0, 0}, + {NAND_CMD_LOCK_TIGHT, NAND_CMD_NONE, 0, 0}, + {NAND_CMD_UNLOCK1, NAND_CMD_NONE, 3, 0}, + {NAND_CMD_UNLOCK2, NAND_CMD_NONE, 3, 0}, + {NAND_CMD_LOCK_STATUS, NAND_CMD_NONE, 3, 0}, {NAND_CMD_NONE, NAND_CMD_NONE, 0, 0}, /* Add all the flash commands supported by the flash device */ };