BRCMNAND_LL_OP
brcmnand_write_reg(ctrl, BRCMNAND_LL_OP, tmp);
(void)brcmnand_read_reg(ctrl, BRCMNAND_LL_OP);
[BRCMNAND_LL_OP] = 0,
[BRCMNAND_LL_OP] = 0x178,
[BRCMNAND_LL_OP] = 0x178,
[BRCMNAND_LL_OP] = 0x20,
[BRCMNAND_LL_OP] = 0x20,
[BRCMNAND_LL_OP] = 0x20,