First run of removing code specific to CSB740/OMAP3530 and replacing it with that of BBB/AM335xin BBB port

[Jarielle Catbagan]

Ed,

I apologize for the inconvenience, but I forgot to mention I submitted
an additional four patches after the set of 13.  One of which updates
the BOOTRAMBASE and BOOTROMBASE variables.  Another one updates the
CONSOLE_UART_BASE, another updates the -mcpu compiler option, and
another, which I think is crucial, maps Umon's exception handlers in
the AM335x exception vector table.

Here are the links to the patches :

1. https://lists.rtems.org/pipermail/umon-devel/2015-June/000069.html
2. https://lists.rtems.org/pipermail/umon-devel/2015-June/000070.html
3. https://lists.rtems.org/pipermail/umon-devel/2015-June/000071.html
4. https://lists.rtems.org/pipermail/umon-devel/2015-June/000072.html

On Mon, Jun 22, 2015 at 7:50 PM, Ed Sutter <edsutterjr at gmail.com> wrote:
> Jarielle,
> Ok, I think I'm where you are now.  Good job with the patches!
> Note, I'm *still* not using the RTEMS compiler (which I need to do).  I
> just wanted to walk through some of the patches to see if I could get
> to your state.  Building it this way, it appears that I have the same
> problem
> you've been talking about.  On the other hand, if I build off of umon1.19
> there is no problem (which, again, I think is the same thing you reported).
>
> I had to make two changes after applying all the patches you submitted, but
> you must have them already.  Let me know if you disagree...
>
> They are regarding the BOOTROMBASE/BOOTRAMBASE variables in the Makefile
> and the UART base address in config.h.
>
> The intelligent thing at this point would be to back off and install the
> RTEMS
> compiler; however, its too late to start that now so I'm just gonna play
> around
> with this for an hour or so...
> Ed
>
>
> diff --git a/ports/beagleboneblack/Makefile b/ports/beagleboneblack/Makefile
> index 77af32d..7986561 100644
> --- a/ports/beagleboneblack/Makefile
> +++ b/ports/beagleboneblack/Makefile
> @@ -23,14 +23,15 @@ CUSTOM_CFLAGS       = -mcpu=arm1136j-s -O2 -isystem
> $(ABIDIR)/include -Wno-char
>  # Memory map configuration:
>  # The following variables are used to establish the system's memory map.
>  #
> -BOOTROMBASE=0x08000000
> +BOOTROMBASE=0x402f0400
>  BOOTROMLEN=0x100000
> -BOOTRAMBASE=0x80000000
> +BOOTRAMBASE=0x40300400
>  BOOTRAMLEN=0x100000
>  RAMTSTROMBASE=0x80100000
>  RAMTSTROMLEN=0x100000
>  ATAGSIZE=0x1000
>
> +
>  # These next two hard-coded values are used by the ramtst version of
>  # uMon to allow it to know where these flash-based structures are located.
>  MACADDRBASE=0x08000020
> diff --git a/ports/beagleboneblack/config.h b/ports/beagleboneblack/config.h
> index c623456..e246f88 100644
> --- a/ports/beagleboneblack/config.h
> +++ b/ports/beagleboneblack/config.h
> @@ -25,7 +25,8 @@
>   */
>  //#define MORE_PUTCHAR lcd_putchar
>  //#define CONSOLE_UART_BASE (OMAP35XX_L4_IO_BASE+0x6C000)
> -#define CONSOLE_UART_BASE 0x4806C000
> +//#define CONSOLE_UART_BASE 0x4806C000
> +#define CONSOLE_UART_BASE 0x44e09000
>
>  #define SIO_STEP 4
>  #define IEN_DEFAULT 0x40
> @@ -143,8 +144,8 @@
>   * allocated to malloc in the monitor.  Note that this size can be
> dynamically
>   * increased using the heap extension option in the heap command.
>   */
> -#define ALLOCSIZE      1024    // (64*1024)
> -#define MONSTACKSIZE   (16*1024)
> +#define ALLOCSIZE              (1*1024)
> +#define MONSTACKSIZE   (1*1024)
>
>  // Cogent specific options
>  #define INCLUDE_I2C                            0
>
>
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