[LEDE-DEV] mt7621 nand driver status.

[John Crispin]

On 24/08/2016 13:25, Kenneth Johansson wrote:
> What is the status of the nand driver for mt7621 ??
> 
> when I try to use it the probing is ok but it fails when I try to
> read/write.
> 
> 

known to be working and i used it on the ERX just last week. what
specifc board is this and can you post your dts file please. initial
guess is that pinmux might be bad.

	John

> [    4.150000] MediaTek Nand driver init, version v2.1 Fix AHB virt2phys
> error
> [    4.170000] Allocate 16 byte aligned buffer: 806f3100
> [    4.180000] Enable NFI Clock
> [    4.180000] # MTK NAND # : Use HW ECC
> [    4.190000] Device not found, ID: ecf1
> [    4.200000] Not Support this Device!
> [    4.200000] chip_mode=00000002
> [    4.210000] Support this Device in MTK table! ecf1
> [    4.220000] nand: device found, Manufacturer ID: 0xec, Chip ID: 0xf1
> [    4.230000] nand: Samsung NAND 128MiB 3,3V 8-bit
> [    4.240000] nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048,
> OOB size: 64
> [    4.260000] [NAND]select ecc bit:4, sparesize :64 spare_per_sector=16
> [    4.270000] Scanning device for bad blocks
> [    4.280000] Bad eraseblock 2 at 0x000000040000
> [    4.290000] Bad eraseblock 3 at 0x000000060000
> [    4.400000] Bad eraseblock 306 at 0x000002640000
> [    4.440000] Bad eraseblock 386 at 0x000003040000
> [    4.510000] Bad eraseblock 588 at 0x000004980000
> [    4.670000] 4 ofpart partitions found on MTD device MT7621-NAND
> [    4.680000] Creating 4 MTD partitions on "MT7621-NAND":
> [    4.690000] 0x000000000000-0x000000080000 : "uboot"
> [    4.700000] 0x000000080000-0x000000100000 : "uboot_env"
> [    4.710000] 0x000000100000-0x000000140000 : "factory"
> [    4.720000] 0x000000140000-0x000001000000 : "rootfs"
> [    4.740000] mtd: device 3 (rootfs) set to be root filesystem
> [    4.750000] mtdsplit: no squashfs found in "rootfs"
> [    4.760000] [mtk_nand] probe successfully!
> 
> 
> #cat /dev/mtd0 >/dev/null
> [   75.910000] [mtk_nand_mcu_read_data] timeout
> [   75.940000] [mtk_nand_mcu_read_data] timeout
> [   75.980000] [mtk_nand_mcu_read_data] timeout
> [   76.020000] [mtk_nand_mcu_read_data] timeout
> 
> 
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