On 04/06/2012 04:22 PM, Gachet Daniel wrote:

Hi Stefano,

You will find below the new patch for the NAND flash access problem on the TX25 module. I hope this version is fulfilling your expectations.

Cordially,

Daniel

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 35e89a0..fe1cef6 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1290,7 +1290,9 @@ static void mxc_setup_config1(void) uint16_t tmp;

tmp = readw(&host->regs->nfc_config1); +#ifndef CONFIG_NAND_MXC_NFC_TWO_CYCLES tmp |= NFC_ONE_CYCLE; +#endif tmp |= NFC_4_8N_ECC; writew(tmp, &host->regs->nfc_config1); if (host->pagesize_2k) diff --git a/include/configs/tx25.h b/include/configs/tx25.h index 87bd8a6..0c9aeb8 100644 --- a/include/configs/tx25.h +++ b/include/configs/tx25.h @@ -110,6 +110,7 @@ /* NAND */ #define CONFIG_NAND_MXC #define CONFIG_NAND_MXC_V1_1 +#define CONFIG_NAND_MXC_NFC_TWO_CYCLES #define CONFIG_MXC_NAND_REGS_BASE (0xBB000000) #define CONFIG_SYS_MAX_NAND_DEVICE 1 #define CONFIG_SYS_NAND_BASE (0xBB000000)

Please add documentation for this new config option -- also it should be CONFIG_SYS as it is hardware description rather than configuration.

-Scott