Got problem on using mx28 ODBS

[9crkzhou]

I'v downloaded the ARM-EABI compiler, and I succeed in compiling the odbs package.

While, I meet a problem on the UART.

it seems not recive any input.

this is all I got.

********************************************************

     Diagnostics Suite (1.0) on i.MX28 evk

     Build: Jan 20 2014, 11:28:52

     Freescale Semiconductor, Inc.

********************************************************

Please input char to test UART input function, 'X' exit this test

Please enter x or X to confirm

After this, nothing can be done.

The defalut uart is in BANK1 26+27, my board is BANK3 2+3, I just changed the function in /src/driver/uart/stmp_uart/stmp_uart.c

color in red is what I changed.

void init_debug_uart(struct hw_module *uart, u32 baud)
{
    u32 val;

    stmp_debug_uart = (volatile struct stmp_serial *)uart->base;
    writel(0xa0, HW_PINCTRL_MUXSEL6_SET);
    writel(0x50, HW_PINCTRL_MUXSEL6_CLR);
    //writel(0xf0000, HW_PINCTRL_MUXSEL7_SET);    /*BANK3_PIN25 BANK3_PIN24 to GPIO */

    /* check clocks */
    if ((readl(CLKCTRL_XTAL_ADDR) & 0x80000000))
        writel(0x80000000, CLKCTRL_XTAL_CLR_ADDR);

......

the DBUG UART just not recive the input, what's the problem?

I found it stoped in here:

char receive_char(void)

{

    // If receive fifo is empty, return false

    if (stmp_debug_uart->HW_UARTDBGFR & (1 << 4))

        return 0xFF;

    return (u8) (stmp_debug_uart->HW_UARTDBGDR & 0xFF);

}

So I use the UART printed the stmp_debug_uart->HW_UARTDBGFR  and I found the value is 111001

RI TXFE RXFF TXFF RXFE BUSY DCD DSR CTS

0   0       0        1      1        1        0      0      1

I have no idea how to solve this problem , any help wil be grateful...

[GraceH · Accepted solution]

You need set BANK3 PIN16/PIN17 as GPIO. Because ROM set PWM0,PWM1 as DUART pins.

  HW_PINCTRL_MUXSEL7_SET(0xF);

  HW_PINCTRL_MUXSEL6_CLR(0xF0);

  HW_PINCTRL_MUXSEL6_SET(0xA0);

Grace

[9crkzhou]

clear and sharp! you are so cool!!

can you give me some advices about running the ODBS on NAND flash?

I'm using the K9F2G08U0C  while I use a K9F2G08R0A's ID and passed the test.

---- Running < NAND > test

Please enter y or Y to confirm

input char is: y

Reset NAND

Read NAND ID for CE0: ID for CE0, is 0xec, 0xda, 0x10, 0x95, 0x44

Samsung K9F2G08R0A 8-bit 2K page 256MB found

NAND Erase Block 0

Nand Status 0xc0

NAND Write Page 0

Nand Status 0x10

NAND Read Page 0

data verify pass

now my Question is how to run this program on NAND ?

[GraceH]

You can use mfgtool to download the image to NAND. i.mx28 mfgtool can be downloaded from freescale.com.

Grace

[9crkzhou]

I'm tring to make the OBDS program runing on Nand Flash.it works well in SD card.

but when I flash it into Nand with MFGTool, there no response at all ,and the MFGTool detected a HID compliant Device, which means boot from Nand have failed.

[GraceH]

you need put obds.bin to folder OS Firmware\files and modify ucl.xml

mfg tools download updater.sb/updater_ivt.sb to IRAM, updater.sb/updater_ivt.sb will write target image to NAND.

Grace

[9crkzhou]

In my Knowledge, the elf file uses the "bootlet" to add in the PowerManage features, while in OBDS, there seems no such mechanism.

I tried to use the bootlet that generate uboot.sb ,and replace the uboot with OBDS.elf file, then it did apears some information,but still failed to boot.

PowerPrep start initialize power...

Battery Voltage = 0.83V

No battery or bad battery detected!!!.Disabling battery voltage measurements./r/nJan 22 201409:41:30

FRAC 0x92925552

memory type is DDR2

                  Wait for ddr ready 1power 0x00820616

Frac 0x92925552

start change cpu freq

hbus 0x00000003

cpu 0x00010001

start test memory accress

ddr2 0x40000000

finish simple test

0x8050100f

[9crkzhou]

finally,I solved this problem. getting this trouble is mainly because I have no sense about the bootstream stuff.

step is:

1 gcc compile an elf file

2 use elftosb turn it to sb file

3 the SD/Nand program starts.

elftosb tool needs a .bd file

while the PMU is not work,  so you should have an little program to start the PMU and DDR,defined in .bd file

then you go step 2

generate a sb file

then it works.

[9crkzhou]

only need to use the mfgtool?

I'v tried it .but it has no debug infomation out .the program runs normal in SD card,

my Question is :

   how this chip boot ? does it like SUMSUNG 2440？the S3C2440 copy the first 4K DATA of NAND to SRAM, then run the program in SRAM, so the 4K program should copy the left DATA in NAND to DDR, then jump to DDR.

how's  i.MX28 did in the bootflow?

did the ODBS support the NAND boot directly?