[U-Boot] U-boot hangs on imx6 pci driver

Fabio Estevam
2014-06-05T19:20:12Z

On Thu, Jun 5, 2014 at 2:53 PM, Marek Vasut <marex@denx.de> wrote:

>> Does this help?
>>
>> drivers/pci/pcie_imx.c | 3 +--
>> 1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/drivers/pci/pcie_imx.c b/drivers/pci/pcie_imx.c
>> index c48737e..190cdec 100644
>> --- a/drivers/pci/pcie_imx.c
>> +++ b/drivers/pci/pcie_imx.c
>> @@ -435,8 +435,7 @@ static int imx6_pcie_init_phy(void)
>> clrbits_le32(&iomuxc_regs->gpr[12], IOMUXC_GPR12_APPS_LTSSM_ENABLE);
>>
>> clrsetbits_le32(&iomuxc_regs->gpr[12],
>> - IOMUXC_GPR12_DEVICE_TYPE_MASK,
>> - IOMUXC_GPR12_DEVICE_TYPE_RC);
>> + IOMUXC_GPR12_DEVICE_TYPE_MASK, 4 << 12);
>
> Is this the setting of RC-mode in GPR12 ? That's wrong in the FSL datasheet, not
> in the code IIRC ;-)

Yes, RM is wrong. U-boot is setting it to 2. Kernel sets it to 4,
which is the correct value.