mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-19 13:41:31 +00:00
mtd: denali: fix NAND_CMD_PARAM command
NAND_CMD_PARAM (0xEC) command is not working on the Denali NAND controller driver. Unlike NAND_CMD_READID (0x90), when the NAND_CMD_PARAM command is followed by an address cycle, the target device goes busy. (R/B# is deasserted) Wait until the parameter data are ready. In addition, unnecessary clear_interrupts() should be removed. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Chin Liang See <clsee@altera.com>
This commit is contained in:
parent
dd0204e48d
commit
05968e7cfd
1 changed files with 3 additions and 2 deletions
|
@ -1059,9 +1059,8 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
||||||
addr = MODE_11 | BANK(denali->flash_bank);
|
addr = MODE_11 | BANK(denali->flash_bank);
|
||||||
index_addr(denali, addr | 0, cmd);
|
index_addr(denali, addr | 0, cmd);
|
||||||
break;
|
break;
|
||||||
case NAND_CMD_PARAM:
|
|
||||||
clear_interrupts(denali);
|
|
||||||
case NAND_CMD_READID:
|
case NAND_CMD_READID:
|
||||||
|
case NAND_CMD_PARAM:
|
||||||
reset_buf(denali);
|
reset_buf(denali);
|
||||||
/* sometimes ManufactureId read from register is not right
|
/* sometimes ManufactureId read from register is not right
|
||||||
* e.g. some of Micron MT29F32G08QAA MLC NAND chips
|
* e.g. some of Micron MT29F32G08QAA MLC NAND chips
|
||||||
|
@ -1070,6 +1069,8 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
|
||||||
addr = MODE_11 | BANK(denali->flash_bank);
|
addr = MODE_11 | BANK(denali->flash_bank);
|
||||||
index_addr(denali, addr | 0, cmd);
|
index_addr(denali, addr | 0, cmd);
|
||||||
index_addr(denali, addr | 1, col & 0xFF);
|
index_addr(denali, addr | 1, col & 0xFF);
|
||||||
|
if (cmd == NAND_CMD_PARAM)
|
||||||
|
udelay(50);
|
||||||
break;
|
break;
|
||||||
case NAND_CMD_READ0:
|
case NAND_CMD_READ0:
|
||||||
case NAND_CMD_SEQIN:
|
case NAND_CMD_SEQIN:
|
||||||
|
|
Loading…
Add table
Reference in a new issue