diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2016-01-06 15:44:07 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2018-12-24 01:27:30 +0100 |
| commit | df5fd2ce051ab248d9d311740ef8c90fbbe3a046 (patch) | |
| tree | 5d4c6781eb2756d13043c12374b11b2ecce82c5e /drivers | |
| parent | b0a6bc58a88716a54b30429f92b30288d6fa28a0 (diff) | |
PCI: imx6: fix PCIe EP device self-initialisation
This fixes PCIe EP device self-initialisation in case only a regular
reset EP GPIO is used as PERST# which is e.g. the case on our Ixora
carrier board by always waiting 20 milliseconds after releasing PERST#.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
(cherry picked from commit 3eaf56fc694e8b960a29e0205f40380cf59f9fc9)
(cherry picked from commit 826486c65363059986fa12fa1eeb7c0e50c3af48)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/host/pci-imx6.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c index 10d66c1ba38c..8de09e39edb9 100644 --- a/drivers/pci/host/pci-imx6.c +++ b/drivers/pci/host/pci-imx6.c @@ -943,13 +943,12 @@ static int imx_pcie_deassert_core_reset(struct imx_pcie *imx_pcie) mdelay(1); if (gpio_is_valid(imx_pcie->reset_ep_gpio)) gpio_set_value_cansleep(imx_pcie->reset_ep_gpio, 0); - mdelay(20); } else if (gpio_is_valid(imx_pcie->reset_ep_gpio)) { gpio_set_value_cansleep(imx_pcie->reset_ep_gpio, 1); mdelay(100); gpio_set_value_cansleep(imx_pcie->reset_ep_gpio, 0); - mdelay(20); } + mdelay(20); if (ret == 0) return ret; |