Add fixup for new NAND chip in FRITZ!7530 A1

adds a switch-table with fixed OOB size and ECC strength
for the AVM FRITZ!7530 with Toshiba NAND. Unlike the
previously used Macronix NAND this NAND does not support
ONFI and hence needs these values provided separately.

Bootlog:
|[NAND:] 128MB TOSHIBA 2048 Pagesize 128k Blocksize 1024 Blocks HW
|NAND:  Not an ONFI device
|ONFI probe failed
|ID = 1580f198
|Vendor = 98
|Device = f1
|SF: Unsupported manufacturer ff
|ipq_spi: SPI Flash not found (bus/cs/speed/mode) = (0/0/48000000/0)
|128 MiB

Signed-off-by: Andreas Böhler <[email protected]>
(added signed-off + commit message from the OpenWrt package,
made it with switch)
Signed-off-by: Christian Lamparter <[email protected]>

drivers/mtd/qpic_nand.c

@@ -1303,16 +1303,27 @@ static int qpic_nand_get_info(struct mtd_info *mtd, uint32_t flash_id)
 
 	mtd->size = MB_TO_BYTES(flash_dev->chipsize);
 	/*
-	* For older NAND flash, we obtained the flash information
-	* from the flash_dev table. For newer flashes the information
-	* is available in the cfg byte, in the NAND ID sequence.
-	*/
+	 * For older NAND flash, we obtained the flash information
+	 * from the flash_dev table. For newer flashes the information
+	 * is available in the cfg byte, in the NAND ID sequence.
+	 */
 	if (!flash_dev->pagesize)
 		qpic_nand_get_info_cfg(mtd, cfg_id);
 	else
 		qpic_nand_get_info_flash_dev(mtd, flash_dev);
 
-	dev->ecc_width = NAND_WITH_4_BIT_ECC;
+	switch (flash_id) {
+	case 0x1580f198:
+		printf("=================================\n");
+		printf("Fixup for Toshiba TC58NVG0S3HTA00\n");
+		printf("=================================\n");
+		dev->ecc_width = NAND_WITH_8_BIT_ECC;
+		mtd->oobsize = dev->spare_size = 128;
+		break;
+
+	default:
+		dev->ecc_width = NAND_WITH_4_BIT_ECC;
+	}
 
 	dev->num_blocks = mtd->size;
 	dev->num_blocks /= (dev->block_size);