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

Marek Vasut
2014-06-05T17:53:28Z

On Thursday, June 05, 2014 at 05:27:08 PM, Fabio Estevam wrote:
> Tim,
>
> On Wed, Jun 4, 2014 at 9:16 PM, Tim Harvey <tharvey@gateworks.com> wrote:
> > work-around the problem on my end as well. Note that I do not see this
> > issue unless I'm using one of our boards with a PCIe switch and If I
> > disable PCI support in u-boot this does not occur. This feels like a
>
> 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 ;-)

Best regards,
Marek Vasut