Hi Josh,
2015-12-07 20:32 GMT+01:00 Josh Cartwright :
> On Mon, Dec 07, 2015 at 11:58:33AM +0100, Neil Armstrong wrote:
>> On some platforms, the macb integration does not use the USRIO
>> register to configure the (R)MII port and clocks.
>> When the register is not implemented and
Le 08/12/2015 10:21, Neil Armstrong a écrit :
> Hi Josh,
>
> 2015-12-07 20:32 GMT+01:00 Josh Cartwright :
>> On Mon, Dec 07, 2015 at 11:58:33AM +0100, Neil Armstrong wrote:
>>> On some platforms, the macb integration does not use the USRIO
>>> register to configure the (R)MII port
On some platforms, the macb integration does not use the USRIO
register to configure the (R)MII port and clocks.
When the register is not implemented and the MACB error signal
is connected to the bus error, reading or writing to the USRIO
register can trigger some Imprecise External Aborts on ARM
From: Neil Armstrong
Date: Mon, 7 Dec 2015 11:58:33 +0100
> - regs_buff[12] = macb_or_gem_readl(bp, USRIO);
> + if (!of_property_read_bool(bp->pdev->dev.of_node, "no-usrio")) {
> + regs_buff[12] = macb_or_gem_readl(bp, USRIO);
> + }
Single
On Mon, Dec 07, 2015 at 11:58:33AM +0100, Neil Armstrong wrote:
> On some platforms, the macb integration does not use the USRIO
> register to configure the (R)MII port and clocks.
> When the register is not implemented and the MACB error signal
> is connected to the bus error, reading or writing