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How to change SD3 to NandF

Question asked by billyhe on Jan 4, 2013
Latest reply on Jan 9, 2013 by jimmychan
Branched to a new discussion

I has modified i.mx53 u-boot(mx53_loco) SD3 to NandF, delete the SD3's initialization and add the NandF initialization, the codes like this:

 

mxc_request_iomux(MX53_PIN_NANDF_WE_B, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_NANDF_RE_B, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_NANDF_CLE, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_NANDF_ALE, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_NANDF_WP_B, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_NANDF_RB0, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_NANDF_CS0, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_ATA_DATA0, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA1, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA2, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA3, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA4, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA5, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA6, IOMUX_CONFIG_ALT3);
mxc_request_iomux(MX53_PIN_ATA_DATA7, IOMUX_CONFIG_ALT3);

 

Then I connect a nandflash K9F2G08U0A with Samsung. Launch the board, we can see the nandflash's message like this:

 

NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Manufacturer      : Samsung (0xec)
Device Code       : 0xda
Cell Technology   : SLC
Chip Size         : 256 MiB
Pages per Block   : 64
Page Geometry     : 2048+64
ECC Strength      : 4 bits
ECC Size          : 512 B
Data Setup Time   : 20 ns
Data Hold Time    : 10 ns
Address Setup Time: 20 ns
GPMI Sample Delay : 6 ns
tREA              : Unknown
tRLOH             : Unknown
tRHOH             : Unknown
Description       : K9F2G08U0A
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
nand_read_bbt: Bad block at 0x00000f840000
256 MiB

 

But when SD1 read, the system has halted. If I disconnect the nandflash the system has normally to go to the kernel. What is the problem? Thanks!

 

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