On 16/01/15 15:29, Iurii Konovalenko wrote:
>> Is there any reason that this code diverge?
>>
>
> Linux kernel 3.14-ltsi, which I used as a reference, use CNTFID0
> in file arch/arm/mach-shmobile/setup-rcar-gen2.c:
> iowrite32(freq, base + CNTFID0);
Which seems different from upstream:
1. /* Update registers with correct frequency */
2. iowrite32(freq, base + CNTFID0);
3. asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
4.
5. /* make sure arch timer is started by setting bit 0 of CNTCR */
6. iowrite32(1, base + CNTCR);
Regards,
--
Julien Grall
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