[PATCH] PCI: imx6: increase link startup
Shawn Guo
shawn.guo at linaro.org
Wed Oct 23 03:46:27 EDT 2013
On Tue, Oct 22, 2013 at 10:12:18PM -0700, Tim Harvey wrote:
> An increase link startup delay is required when certain PCI switches are
> attached to the root complex. This was tested with a Pericom switch
> and a PLX switch.
>
> From: Marek Vasut <marex at denx.de>
> Signed-off-by: Marek Vasut <marex at denx.de>
> Acked-by: Tim Harvey <tharvey at gateworks.com>
Acked-by: Shawn Guo <shawn.guo at linaro.org>
> ---
> drivers/pci/host/pci-imx6.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
> index 90fce05..34c571a 100644
> --- a/drivers/pci/host/pci-imx6.c
> +++ b/drivers/pci/host/pci-imx6.c
> @@ -318,7 +318,7 @@ static void imx6_pcie_host_init(struct pcie_port *pp)
> while (!dw_pcie_link_up(pp)) {
> usleep_range(100, 1000);
> count++;
> - if (count >= 10) {
> + if (count >= 200) {
> dev_err(pp->dev, "phy link never came up\n");
> dev_dbg(pp->dev,
> "DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n",
> --
> 1.7.9.5
>
More information about the linux-arm-kernel
mailing list