Re: [ts-7000] Re: kernel 2.6.27.4 for TS-72XX [take1]

[Matthieu Crapet <>]

Hi Marco,

I looked to the discontigmem replacement stuff today.
I tried to move from ARCH_DISCONTIGMEM_ENABLE to ARCH_SPARSEMEM_ENABLE.
Let's leave apart the special "2 chips select" case.

It didn't work at all (freeze after the message: Uncompressing 
Linux............................................................... 
done, booting the kernel.)

Tried both:
#define NODE_MEM_SIZE_BITS 23 // 8mb  
#define NODE_MEM_SIZE_BITS 24 // 16mb  

Started to debug kernel with "printascii" and "printhex8" without result.

Then I wanted to try your new ARCH_HAS_FLATMEM_HOLES way.
I was not able to find any information about it. Where did you find this ?
Are you actually using it ?

Thanks for your help.
Matthieu


greywolf9923 wrote:
>
> Hi Matt,
>
> two comments:
>
> 1) discontigmem is deprecated. Now according to Russel King the new
> approach is sparsemem. However now the kernel has a new define called
> ARCH_HAS_FLATMEM_ HOLES, it should be sufficient, so I think the
> discontigmem stuff in your patch is not needed. You can check my
> discussion on the arm mailing list.
>
> 2) About the led I think it should be sufficient to use the general
> gpio led support and to do a declaration in the ts72xx.c of them, like
> this:
>
> static const struct gpio_led ts72xx_leds[ ] = {
> { .name = "green", .gpio = EP93XX_GPIO_ LINE_GRLED, .active_low = 1,
> .default_trigger = "heartbeat",
> },
> { .name = "red", .gpio = EP93XX_GPIO_ LINE_RDLED, .active_low = 1, },
> };
>
> static const struct gpio_led_platform_ data ts72xx_led_data = {
> .num_leds = ARRAY_SIZE(ts72xx_ leds),
> .leds = (void *) ts72xx_leds,
> };
>
> static struct platform_device ngw_gpio_leds = {
> .name = "leds-gpio",
> .id = -1,
> .dev = {
> .platform_data = (void *) &ts72xx_led_ data,
> }
> };
>
> Regards,
>
> Marco
>
> --- In  .com <ts-7000%40yahoogroups.com>, 
> Matthieu Crapet < > wrote:
> >
> > Greetings,
> >
> > Here is a kernel 2.6.27.4 patch (against mainline Linux kernel) for
> TS-72xx.
> >
> > Moved everything from my previous patch for 2.6.24.4 to this version.
> > I wanted the new generic GPIO layer.
> >
> > The file "linux-2.6.27. 4-ts7200_ matt-1.tar. gz" has been posted in 
> the
> > yahoo group file area:
> > http://tech. groups.yahoo. com/group/ ts-7000/files 
> <http://tech.groups.yahoo.com/group/ts-7000/files>
> >
> > Either cumulative or single patches are available.
> >
> > Comments are welcome.
> >
> > Best regards,
> > Matthieu
>

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