Имею плату Core9G25, на ней расположенно NAND на 256 метров. Ядро 4.1.18. В device-tree указал:
nand {
pinctrl_nand: nand-0 {
atmel,pins =
<AT91_PIOD 0 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD0 periph A Read Enable */
AT91_PIOD 1 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD1 periph A Write Enable */
AT91_PIOD 2 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD2 periph A Address Latch Enable */
AT91_PIOD 3 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD3 periph A Command Latch Enable */
AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD4 gpio Chip Enable pin pull_up */
AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD5 gpio RDY/BUSY pin pull_up */
AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD6 periph A Data bit 0 */
AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD7 periph A Data bit 1 */
AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD8 periph A Data bit 2 */
AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD9 periph A Data bit 3 */
AT91_PIOD 10 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD10 periph A Data bit 4 */
AT91_PIOD 11 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD11 periph A Data bit 5 */
AT91_PIOD 12 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD12 periph A Data bit 6 */
AT91_PIOD 13 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PD13 periph A Data bit 7 */
};
pinctrl_nand_16bits: nand_16bits-0 {
atmel,pins =
<AT91_PIOD 14 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD14 periph A Data bit 8 */
AT91_PIOD 15 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD15 periph A Data bit 9 */
AT91_PIOD 16 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD16 periph A Data bit 10 */
AT91_PIOD 17 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD17 periph A Data bit 11 */
AT91_PIOD 18 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD18 periph A Data bit 12 */
AT91_PIOD 19 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD19 periph A Data bit 13 */
AT91_PIOD 20 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD20 periph A Data bit 14 */
AT91_PIOD 21 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PD21 periph A Data bit 15 */
};
};
nand0: nand@40000000 {
compatible = "atmel,at91rm9200-nand";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x40000000 0x10000000
0xffffe000 0x600 /* PMECC Registers */
0xffffe600 0x200 /* PMECC Error Location Registers */
0x00100000 0x100000 /* PMECC looup table in ROM code */
>;
atmel,pmecc-lookup-table-offset = <0x8000 0x10000>;
atmel,nand-addr-offset = <21>;
atmel,nand-cmd-offset = <22>;
//adding
nand-bus-width = <8>;
nand-ecc-mode = "hw";
atmel,has-pmecc;
atmel,pmecc-cap = <2>;
atmel,pmecc-sector-size = <512>;
nand-on-flash-bbt;
atmel,nand-has-dma;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_nand>;
gpios = <&pioD 5 0
&pioD 4 0
0
>;
status = "okay";
bootstrap@0 {
label = "bootstrap";
reg = <0x0 0x20000>;
};
uimage@20000 {
label = "uimage";
reg = <0x20000 0x420000>;
};
dtbs@420000 {
label = "device-tree";
reg = <0x420000 0x439000>;
};
sg@439000 {
label = "settings";
reg = <0x439000 0x539000>;
};
rootfs@539000 {
label = "rootfs";
reg = <0x539000 0xf539000>;
};
};
При загрузке выдает:
[ 0.632812] atmel_nand 40000000.nand: Use On Flash BBT
[ 0.632812] atmel_nand 40000000.nand: Using dma0chan0 for DMA transfers.
[ 0.640625] nand: second ID read did not match 30,98 against a0,57
[ 0.648437] nand: No NAND device found
При том родная прошивка на базе 3.6.9+ успешно загружается:
brd: module loaded
loop: module loaded
atmel_nand: Use On Flash BBT
atmel_nand 40000000.nand: Using dma0chan0 for DMA transfers.
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit), page size: 2048, OOB size: 64
atmel_nand 40000000.nand: NAND chip is not ONFI compliant, assume ecc_bits is 2 in 512 bytes
atmel_nand 40000000.nand: Initialize PMECC params, cap: 2, sector: 512
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
nand_read_bbt: bad block at 0x000006260000
nand_read_bbt: bad block at 0x0000080e0000
nand_read_bbt: bad block at 0x000008e40000
8 cmdlinepart partitions found on MTD device atmel_nand
Creating 8 MTD partitions on "atmel_nand":
0x000000000000-0x000000040000 : "bootstrap"
0x000000040000-0x0000000c0000 : "uboot"
0x0000000c0000-0x000000100000 : "env"
0x000000100000-0x000000140000 : "env_redundant"
0x000000140000-0x000000180000 : "spare"
0x000000180000-0x000000200000 : "dtb"
0x000000200000-0x000000800000 : "kernel"
0x000000800000-0x000010000000 : "rootfs"
UBI: attaching mtd7 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI: max. sequence number: 180
UBI warning: print_rsvd_warning: cannot reserve enough PEBs for bad PEB handling, reserved 29, need 38
UBI: attached mtd7 to ubi0
UBI: MTD device name: "rootfs"
UBI: MTD device size: 248 MiB
UBI: number of good PEBs: 1977
UBI: number of bad PEBs: 7
UBI: number of corrupted PEBs: 0
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 1977
UBI: number of PEBs reserved for bad PEB handling: 29
UBI: max/mean erase counter: 2/1
UBI: image sequence number: 108941888
UBI: background thread "ubi_bgt0d" started, PID 452
Что я делаю не так?
devices, dts, embedded, embedded linux, nand
