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| author | Hou Zhiqiang <Zhiqiang.Hou@nxp.com> | 2017-02-10 10:42:11 +0300 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2017-03-28 19:06:11 +0300 |
| commit | d170aca1a0716331cde0af957e3bd59c5531d04f (patch) | |
| tree | 4e93ec14d5c9f73260d2327d4553d9846c568d30 /drivers/pci/pcie_layerscape.c | |
| parent | ac55dadb1cb6a350604affd84e19006984933fa0 (diff) | |
| download | u-boot-d170aca1a0716331cde0af957e3bd59c5531d04f.tar.xz | |
pci: layerscape: enable PCIe config ready
In EP mode, to enable accesses from the Root Complex, the
CONFIG_READY bit must be set, otherwise any config attempts
from the Root Complex will be returned with config retry
status (CRS).
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'drivers/pci/pcie_layerscape.c')
| -rw-r--r-- | drivers/pci/pcie_layerscape.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c index b6806cf67b..47dd806ad2 100644 --- a/drivers/pci/pcie_layerscape.c +++ b/drivers/pci/pcie_layerscape.c @@ -409,6 +409,11 @@ static void ls_pcie_ep_setup_bars(void *bar_base) ls_pcie_ep_setup_bar(bar_base, 4, PCIE_BAR4_SIZE); } +static void ls_pcie_ep_enable_cfg(struct ls_pcie *pcie) +{ + ctrl_writel(pcie, PCIE_CONFIG_READY, PCIE_PF_CONFIG); +} + static void ls_pcie_setup_ep(struct ls_pcie *pcie) { u32 sriov; @@ -432,6 +437,8 @@ static void ls_pcie_setup_ep(struct ls_pcie *pcie) ls_pcie_ep_setup_bars(pcie->dbi + PCIE_NO_SRIOV_BAR_BASE); ls_pcie_ep_setup_atu(pcie); } + + ls_pcie_ep_enable_cfg(pcie); } static int ls_pcie_probe(struct udevice *dev) |