[U-Boot] u-boot memory map questions

[javier Martin]

I am trying to port u-boot to our custom board based on i.MX27 SoC. For that
purpose I am taking the code for i.mx27 litekit as start point.
Currently I am figuring out what the memory map of my system would be if I
have the following parameters:

In config.mk
TEXT_BASE = 0xA3F00000

In my board config file:
/*
 * Memory Info
 */
/* malloc() len */
#define CONFIG_SYS_MALLOC_LEN        (0x10000 + 512 * 1024)
/* reserved for initial data */
#define CONFIG_SYS_GBL_DATA_SIZE    128
/* memtest start address */
#define CONFIG_SYS_MEMTEST_START    0xA0000000
#define CONFIG_SYS_MEMTEST_END        0xA1000000    /* 16MB RAM test */
#define CONFIG_NR_DRAM_BANKS    1        /* we have 1 bank of DRAM */
#define CONFIG_STACKSIZE    (256 * 1024)    /* regular stack */
#define PHYS_SDRAM_1        0xA0000000    /* DDR Start */
#define PHYS_SDRAM_1_SIZE    0x04000000    /* DDR size 64MB */


According to the README file I think my memory map should be the following:

        0xA000 0000     Exception Vector code [Start of RAM]
              :
        0xA000 1FFF
    ----------------------------------------------------------------------
        0xA000 2000     Free for Application Use
              :
              :
    0xA3E2 FF7B    End of application memory
    ----------------------------------------------------------------------
        0xA3E2 FF7C     Stack End
            (TEXT_BASE - CONFIG_SYS_MALLOC_LEN - CONFIG_SYS_GBL_DATA_SIZE -
4
            - CONFIG_STACKSIZE)
              :
        0xA3E6 FF7C    Monitor Stack (Growing downward)
            (TEXT_BASE - CONFIG_SYS_MALLOC_LEN - CONFIG_SYS_GBL_DATA_SIZE -
4)
    ----------------------------------------------------------------------
        0xA3E6 FF80     Board Info Data and permanent copy of global data
            (TEXT_BASE - CONFIG_SYS_MALLOC_LEN - CONFIG_SYS_GBL_DATA_SIZE)
          :
    0xA3E6 FFFF
    ----------------------------------------------------------------------
        0xA3E7 0000     Malloc Area (TEXT_BASE - CONFIG_SYS_MALLOC_LEN)
              :
        0xA3EF FFFF
    ----------------------------------------------------------------------
        0xA3F0 0000     RAM Copy of Monitor Code (TEXT_BASE)
        ...             eventually: LCD or video framebuffer
        ...             eventually: pRAM (Protected RAM - unchanged by
reset)
        0xA3FF FFFF     [End of RAM]

Do you see some wrong  point here?

Thanks.
-- 
Javier Martin
Vista Silicon S.L.
CDTUC - FASE C - Oficina S-345
Avda de los Castros s/n
39005- Santander. Cantabria. Spain
+34 942 25 32 60
www.vista-silicon.com