Dear KT,
How do you take the start and end address , is it your ram start and
ram end address as per your mem map.
This ram_console_dev structure , where you added so it is
initialized.I added in board file .
But i am getting the error like: ram_console: failed to claim resource
0
Can you please help me to know if any other modification is required.
Regards
Mac
On Oct 12, 2:31 am, KT <ktlangs...@gmail.com> wrote:
> Hi Y'all,
>
> I added the ram console as a platform device in my board file as below
> (where the start address is the physical address of SDRAM on chip ):-
>
> =====================================================
> struct resource ram_res[] = {
> {
> .start = 0x8ff00000,
> .end = 0x8fffffff,
> .flags = IORESOURCE_MEM,
> },
>
> };
>
> struct platform_device ram_console_dev = {
> .name = "ram_console",
> .id = -1,
> .num_resources = ARRAY_SIZE(ram_res),
> .resource = ram_res,};
>
> =======================================================
>
> The ram console is initialized and I see /proc/last_kmsg holding the
> kernel log for the previous boot session.
>
> Now I would like to start ram console early and when I configure it as
> such using 'make menuconfig', it asks for "Android Ram console virtual
> address".
>
> Can anyone tell me how one can pass the virtual address of the
> physical memory at config time??
>
> Your help is much appreciated.
>
> Thanks,
> KT
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