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

Marek Vasut
2014-06-05T22:04:59Z

On Thursday, June 05, 2014 at 09:20:12 PM, Fabio Estevam wrote:
> 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.

Ah yes, 0x4 is correct, I stand corrected, sorry.

Best regards,
Marek Vasut