diff options
| author | hongbo.wang <hongbo.wang@nxp.com> | 2017-05-02 08:31:21 (GMT) |
|---|---|---|
| committer | Xie Xiaobo <xiaobo.xie@nxp.com> | 2017-09-25 07:25:30 (GMT) |
| commit | 627e4b820d04e81e787c810fc1a280f50610be3b (patch) | |
| tree | 9b665f86594f099355783a6d58b6951b284caffe /drivers/pci/host | |
| parent | 5be0fc5c16f3588d138aee7165f54abdb2fba01d (diff) | |
| download | linux-627e4b820d04e81e787c810fc1a280f50610be3b.tar.xz | |
Disable ATU configuration and call dw_pcie_setup_rc in host_init function
Signed-off-by: hongbo.wang <hongbo.wang@nxp.com>
Integrated-by: Zhao Qiang <qiang.zhao@nxp.com>
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/pci-layerscape.c | 15 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-designware.c | 6 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-designware.h | 1 |
3 files changed, 22 insertions, 0 deletions
diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c index 6537079..80a8938 100644 --- a/drivers/pci/host/pci-layerscape.c +++ b/drivers/pci/host/pci-layerscape.c @@ -38,6 +38,10 @@ /* PEX LUT registers */ #define PCIE_LUT_DBG 0x7FC /* PEX LUT Debug Register */ +#define PCIE_IATU_NUM 6 + +static void ls_pcie_host_init(struct pcie_port *pp); + struct ls_pcie_drvdata { u32 lut_offset; u32 ltssm_shift; @@ -86,6 +90,14 @@ static void ls_pcie_drop_msg_tlp(struct ls_pcie *pcie) iowrite32(val, pcie->pp.dbi_base + PCIE_STRFMR1); } +static void ls_pcie_disable_outbound_atus(struct ls_pcie *pcie) +{ + int i; + + for (i = 0; i < PCIE_IATU_NUM; i++) + dw_pcie_disable_outbound_atu(&pcie->pp, i); +} + static int ls1021_pcie_link_up(struct pcie_port *pp) { u32 state; @@ -153,6 +165,9 @@ static void ls_pcie_host_init(struct pcie_port *pp) ls_pcie_clear_multifunction(pcie); ls_pcie_drop_msg_tlp(pcie); iowrite32(0, pcie->pp.dbi_base + PCIE_DBI_RO_WR_EN); + + ls_pcie_disable_outbound_atus(pcie); + dw_pcie_setup_rc(pp); } static int ls_pcie_msi_host_init(struct pcie_port *pp, diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index af8f6e9..2358e04 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -478,6 +478,12 @@ int dw_pcie_wait_for_link(struct pcie_port *pp) return -ETIMEDOUT; } +void dw_pcie_disable_outbound_atu(struct pcie_port *pp, int index) +{ + dw_pcie_writel_rc(pp, PCIE_ATU_VIEWPORT, PCIE_ATU_REGION_OUTBOUND | index); + dw_pcie_writel_rc(pp, PCIE_ATU_CR2, 0); +} + int dw_pcie_link_up(struct pcie_port *pp) { u32 val; diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h index a567ea2..4e6672b 100644 --- a/drivers/pci/host/pcie-designware.h +++ b/drivers/pci/host/pcie-designware.h @@ -82,5 +82,6 @@ int dw_pcie_wait_for_link(struct pcie_port *pp); int dw_pcie_link_up(struct pcie_port *pp); void dw_pcie_setup_rc(struct pcie_port *pp); int dw_pcie_host_init(struct pcie_port *pp); +void dw_pcie_disable_outbound_atu(struct pcie_port *pp, int index); #endif /* _PCIE_DESIGNWARE_H */ |