linux/drivers/pci/controller
Manikanta Maddireddy d1f9113faf PCI: tegra: Fix PCIe host power up sequence
The PCIe host power up sequence requires to program AFI(AXI to FPCI
bridge) registers first and then PCIe registers, otherwise AFI register
settings may not latch to PCIe IP.

PCIe root port starts LTSSM as soon as PCIe xrst is deasserted.
So deassert PCIe xrst after programming PCIe registers.

Modify PCIe power up sequence as follows:

- Power ungate PCIe partition
- Enable AFI clock
- Deassert AFI reset
- Program AFI registers
- Enable PCIe clock
- Deassert PCIe reset
- Program PCIe PHY
- Program PCIe pad control registers
- Program PCIe root port registers
- Deassert PCIe xrst to start LTSSM

Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
2019-06-20 17:18:50 +01:00
..
dwc Merge branch 'remotes/lorenzo/pci/misc' 2019-05-13 18:34:44 -05:00
Kconfig x86/pci: Clean up usage of X86_DEV_DMA_OPS 2019-04-24 13:12:05 +02:00
Makefile PCI: mobiveil: Add Kconfig/Makefile entries 2018-07-30 14:30:16 +01:00
pci-aardvark.c PCI: aardvark: Fix a leaked reference by adding missing of_node_put() 2019-04-01 10:42:58 +01:00
pci-ftpci100.c PCI: faraday: Fix I/O space page leak 2018-07-18 17:01:14 -05:00
pci-host-common.c PCI: Remove unnecessary check of device_type == pci 2018-09-25 09:40:03 +01:00
pci-host-generic.c PCI: Fix comment typos 2019-04-13 11:17:15 -05:00
pci-hyperv.c PCI: hv: Add pci_destroy_slot() in pci_devices_present_work(), if necessary 2019-03-26 19:42:20 +00:00
pci-mvebu.c PCI: pci-bridge-emul: Extend pci_bridge_emul_init() with flags 2019-02-22 10:51:14 +00:00
pci-rcar-gen2.c
pci-tegra.c PCI: tegra: Fix PCIe host power up sequence 2019-06-20 17:18:50 +01:00
pci-thunder-ecam.c
pci-thunder-pem.c
pci-v3-semi.c PCI: v3-semi: Fix I/O space page leak 2018-07-18 17:02:13 -05:00
pci-versatile.c PCI: versatile: Fix I/O space page leak 2018-07-18 17:00:11 -05:00
pci-xgene-msi.c
pci-xgene.c PCI: xgene: Fix I/O space page leak 2018-07-18 16:59:40 -05:00
pcie-altera-msi.c
pcie-altera.c PCI: altera: Add Stratix 10 PCIe support 2019-03-04 12:22:03 +00:00
pcie-cadence-ep.c PCI: cadence: Remove pci_epf_linkup() from Cadence EP driver 2019-02-15 10:02:38 +00:00
pcie-cadence-host.c PCI: Remove unnecessary check of device_type == pci 2018-09-25 09:40:03 +01:00
pcie-cadence.c pci-v4.20-changes 2018-10-25 06:50:48 -07:00
pcie-cadence.h
pcie-iproc-bcma.c
pcie-iproc-msi.c PCI: Fix comment typos 2019-04-13 11:17:15 -05:00
pcie-iproc-platform.c
pcie-iproc.c Merge branch 'pci/iova-dma-ranges' 2019-05-13 18:34:45 -05:00
pcie-iproc.h
pcie-mediatek.c Merge branch 'remotes/lorenzo/pci/misc' 2019-05-13 18:34:44 -05:00
pcie-mobiveil.c PCI: Remove unnecessary check of device_type == pci 2018-09-25 09:40:03 +01:00
pcie-rcar.c Merge branch 'remotes/lorenzo/pci/rcar' 2019-05-13 18:34:42 -05:00
pcie-rockchip-ep.c PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations 2019-04-15 10:39:26 +01:00
pcie-rockchip-host.c PCI: rockchip: Fix a leaked reference by adding missing of_node_put() 2019-04-01 10:42:24 +01:00
pcie-rockchip.c
pcie-rockchip.h
pcie-tango.c
pcie-xilinx-nwl.c PCI/MSI: Remove unused mask_msi_irq() and unmask_msi_irq() 2019-03-21 14:39:33 -05:00
pcie-xilinx.c PCI: xilinx: Check for __get_free_pages() failure 2019-03-29 16:28:20 +00:00
vmd.c x86/pci: Clean up usage of X86_DEV_DMA_OPS 2019-04-24 13:12:05 +02:00