Hi Philipp,
On 8/26/19 3:57 AM, Philipp Zabel wrote:
> Hi Dinh, Linus,
>
> On Fri, 2019-08-23 at 10:42 -0500, Dinh Nguyen wrote:
>>
>> On 8/23/19 4:19 AM, Linus Walleij wrote:
>>> On Tue, Aug 20, 2019 at 4:58 PM Dinh Nguyen wrote:
>>>
@@ -401,6 +402,26 @@ static int
Hi Dinh, Linus,
On Fri, 2019-08-23 at 10:42 -0500, Dinh Nguyen wrote:
>
> On 8/23/19 4:19 AM, Linus Walleij wrote:
> > On Tue, Aug 20, 2019 at 4:58 PM Dinh Nguyen wrote:
> >
> > > @@ -401,6 +402,26 @@ static int amba_device_try_add(struct amba_device
> > > *dev, struct resource *parent)
> > >
On 8/23/19 4:19 AM, Linus Walleij wrote:
> On Tue, Aug 20, 2019 at 4:58 PM Dinh Nguyen wrote:
>
>> @@ -401,6 +402,26 @@ static int amba_device_try_add(struct amba_device *dev,
>> struct resource *parent)
>> ret = amba_get_enable_pclk(dev);
>> if (ret == 0) {
>>
On Tue, Aug 20, 2019 at 4:58 PM Dinh Nguyen wrote:
> @@ -401,6 +402,26 @@ static int amba_device_try_add(struct amba_device *dev,
> struct resource *parent)
> ret = amba_get_enable_pclk(dev);
> if (ret == 0) {
> u32 pid, cid;
> + int count;
> +
The primecell controller on some SoCs, i.e. SoCFPGA, is held in reset by
default. Until recently, the DMA controller was brought out of reset by the
bootloader(i.e. U-Boot). But a recent change in U-Boot, the peripherals
that are not used are held in reset and are left to Linux to bring them
out
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