mtd: sh_flctl: Expand the READID command to 8 bytes
The nand base code wants to read out 8 bytes in the READID command. Reflect this in the driver code. Signed-off-by: Bastian Hecht <hechtb@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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@ -320,6 +320,7 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va
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break;
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case NAND_CMD_READID:
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flcmncr_val &= ~SNAND_E;
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flcmdcr_val |= CDSRC_E;
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addr_len_bytes = ADRCNT_1;
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break;
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case NAND_CMD_STATUS:
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@ -559,13 +560,18 @@ static void flctl_cmdfunc(struct mtd_info *mtd, unsigned int command,
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case NAND_CMD_READID:
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set_cmd_regs(mtd, command, command);
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set_addr(mtd, 0, 0);
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flctl->read_bytes = 4;
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/* READID is always performed using an 8-bit bus */
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if (flctl->chip.options & NAND_BUSWIDTH_16)
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column <<= 1;
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set_addr(mtd, column, 0);
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flctl->read_bytes = 8;
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writel(flctl->read_bytes, FLDTCNTR(flctl)); /* set read size */
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empty_fifo(flctl);
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start_translation(flctl);
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read_datareg(flctl, 0); /* read and end */
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read_fiforeg(flctl, flctl->read_bytes, 0);
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wait_completion(flctl);
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break;
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case NAND_CMD_ERASE1:
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