Xilinx Zynq pl353-nand使用

參考

U-Boot NAND Driver
NAND
Zynq Pl353 SMC and NAND drivers
ZYNQ 從NAND flash啓動應用筆記
NAND flash sub-pages

FPGA

vivado下設置nand參數，

u-boot

#define CONFIG_NAND
#define CONFIG_NAND_ZYNQ

u-boot下mtd配置說明，

/*
 * Three environment variables are used by the parsing routines:
 *
 * 'partition' - keeps current partition identifier
 *
 * partition  := <part-id>
 * <part-id>  := <dev-id>,part_num
 *
 *
 * 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
 *
 * mtdids=<idmap>[,<idmap>,...]
 *
 * <idmap>    := <dev-id>=<mtd-id>
 * <dev-id>   := 'nand'|'nor'|'onenand'<dev-num>
 * <dev-num>  := mtd device number, 0...
 * <mtd-id>   := unique device tag used by linux kernel to find mtd device (mtd->name)
 *
 *
 * 'mtdparts' - partition list
 *
 * mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
 *
 * <mtd-def>  := <mtd-id>:<part-def>[,<part-def>...]
 * <mtd-id>   := unique device tag used by linux kernel to find mtd device (mtd->name)
 * <part-def> := <size>[@<offset>][<name>][<ro-flag>]
 * <size>     := standard linux memsize OR '-' to denote all remaining space
 * <offset>   := partition start offset within the device
 * <name>     := '(' NAME ')'
 * <ro-flag>  := when set to 'ro' makes partition read-only (not used, passed to kernel)
 *
 * Notes:
 * - each <mtd-id> used in mtdparts must albo exist in 'mtddis' mapping
 * - if the above variables are not set defaults for a given target are used
 *
 * Examples:
 *
 * 1 NOR Flash, with 1 single writable partition:
 * mtdids=nor0=edb7312-nor
 * mtdparts=mtdparts=edb7312-nor:-
 *
 * 1 NOR Flash with 2 partitions, 1 NAND with one
 * mtdids=nor0=edb7312-nor,nand0=edb7312-nand
 * mtdparts=mtdparts=edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
 *
 */

對於zynq，

#define MTDIDS_DEFAULT "nand0=pl353-nand"
#define MTDPARTS_DEFAULT "mtdparts=pl353-nand:128k(rcw),219008k(rootfs),32m(rd),128k(dtb)," \
			"9088k(kernel),128k(fman),128k(bootenv),768k(boot)"/*modify by zhuce*/

linux

pl353-nand的驅動不支持slc nand的sub pages特性，開啓配置，

CONFIG_PL35X_SMC = y
CONFIG_MTD_NAND = y
CONFIG_MTD_NAND_PL35X = y

對應的驅動文件，

drivers\memory\pl353-smc.c
drivers\mtd\nand\pl353_nand.c

內核啓動報錯，

nand: device found, Manufacturer ID: 0xef, Chip ID: 0xf1
nand: Unknown W29N01HV
nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
mmc0: Problem switching card into high-speed mode!
mmc0: new SDHC card at address 0001
mmcblk0: mmc0:0001 SD 14.5 GiB 
 mmcblk0: p1
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
Bad block table not found for chip 0
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
Bad block table not found for chip 0
Scanning device for bad blocks
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out
pl353_nand_cmd_function timed out

但是在u-boot下可以訪問，內核下不支持Winbond的nand，報nand: Unknown W29N01HV，不包含這個廠商，但是檢測ondie_ecc_state的的device id有0xf1，這是Winbond的，然後通過ONFI來獲取nand的基本信息，和u-boot下比對是對的。

ondie_ecc_state 0
ONFI version: 10
mtd name: pl353-nand
mtd writesize: 2048
mtd erasesize: 131072
mtd oobsize: 64
mtd chipsize: 134217728
mtd bits_per_cell: 1
mtd busw: 0 # x8
mtd ecc_bits: 1
mtd ecc_strength_ds: 1
mtd ecc_step_ds: 512

nand: device found, Manufacturer ID: 0xef, Chip ID: 0xf1
nand: Winbond W29N01HV
nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
nand_read_bbt: bad block at 0x000007f60000
nand_read_bbt: bad block at 0x000007f80000
nand_read_bbt: bad block at 0x000007fa0000
nand_read_bbt: bad block at 0x000007fc0000
6 ofpart partitions found on MTD device pl353-nand
Creating 6 MTD partitions on "pl353-nand":
0x000000000000-0x0000000c0000 : "boot"
0x0000000c0000-0x0000000e0000 : "bootenv"
0x0000000e0000-0x000000100000 : "bootenvredund"
0x000000100000-0x000001000000 : "pl"
0x000001000000-0x000001500000 : "kernel"
0x000001500000-0x000008000000 : "rootfs"