[U-Boot] [PATCH v1 3/3] x86: Intel MID platforms has no microcode update

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Wed, 2017-02-15 at 11:10 +0800, Bin Meng wrote:
> Hi Andy,
> 
> On Tue, Feb 14, 2017 at 10:47 PM, Andy Shevchenko
> <andriy.shevchenko@linux.intel.com> wrote:
> > There is no microcode update available for SoCs used on Intel MID
> > platforms.
> > 
> > Use conditional to bypass it.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > ---
> > ?arch/x86/cpu/mp_init.c | 2 +-
> > ?1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/arch/x86/cpu/mp_init.c b/arch/x86/cpu/mp_init.c
> > index 988073cc79..4e2f000f75 100644
> > --- a/arch/x86/cpu/mp_init.c
> > +++ b/arch/x86/cpu/mp_init.c
> > @@ -248,7 +248,7 @@ static int load_sipi_vector(atomic_t
> > **ap_countp, int num_cpus)
> > ????????if (!stack)
> > ????????????????return -ENOMEM;
> > ????????params->stack_top = (u32)(stack + size);
> > -#if !defined(CONFIG_QEMU) && !defined(CONFIG_HAVE_FSP)
> > +#if !defined(CONFIG_QEMU) && !defined(CONFIG_HAVE_FSP) &&
> > !defined(CONFIG_INTEL_MID)
> > ????????params->microcode_ptr = ucode_base;
> > ????????debug("Microcode at %x\n", params->microcode_ptr);
> > ?#endif
> 
> Is this patch necessary? If Intel MID does not define CONFIG_QEMU or
> CONFIG_HAVE_FSP, current logic should work.

This code is executed when neither of option is defined. For Intel MID
we do *not* need to have this code executed.

I dunno how it possible can work otherwise (ucode_base is not defined).

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy