[U-Boot] [PATCH v03 1/2] OMAP3+: introduce generic ABB support

[Andrii Tseglytskyi]

On 05/22/2013 11:56 PM, Nishanth Menon wrote:
> Hi Andrii,
> We are almost there.. minor comments follow:
> On 11:42-20130521, Andrii Tseglytskyi wrote:
> [...]
>> diff --git a/arch/arm/cpu/armv7/omap5/abb.c b/arch/arm/cpu/armv7/omap5/abb.c
>> new file mode 100644
>> index 0000000..92470be
>> --- /dev/null
>> +++ b/arch/arm/cpu/armv7/omap5/abb.c
>> @@ -0,0 +1,67 @@
> I might introduce this as part of patch #2... but no strong feelings
> about it.
> [...]
>> +s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb)
>> +{
>> +	u32 vset;
>> +
>> +	/*
>> +	 * ABB parameters must be properly fused
>> +	 * otherwise ABB should be disabled
>> +	 */
>> +	vset = readl(fuse);
>> +	if (!(vset & OMAP5_ABB_FUSE_ENABLE_MASK))
>> +		return -1;
>> +
>> +	/* prepare VSET value for LDOVBB mux register */
>> +	vset &= OMAP5_ABB_FUSE_VSET_MASK;
>> +	vset >>= ffs(OMAP5_ABB_FUSE_VSET_MASK) - 1;
>> +	vset <<= ffs(OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK) - 1;
>> +	vset |= OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK;
>> +
>> +	/* setup LDOVBB using fused value */
>> +	clrsetbits_le32(ldovbb,  OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK, vset);
> OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK wont get set :(

Sorry didn't get... I have

vset |= *OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK*;  <-- set here
clrsetbits_le32(ldovbb,  OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK, vset);


Maybe it would be more clear to rework to:

clrsetbits_le32(ldovbb,  OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK, vset | *OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK*);


Is this your suggestion?

Regards,
Andrii
> [...]
>
> Other than this, I have no further comments.