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u-boot/drivers/pci
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Pali Rohár 2a9059aef5 arm: a37xx: pci: Ensure that root port is always on root zero bus 
Writing to the PCI_PRIMARY_BUS register of the root port should not change
bus number on which is root port present.

This PCI_PRIMARY_BUS register is used only for correct configuration of
legacy PCI stuff, like forwarding of PCI special cycles between buses.

Aardvark HW does not support PCI special cycles, so it does not have HW
register for PCI_PRIMARY_BUS and therefore it does not matter what is
stored in this register.

So fix this issue and do not use PCI_PRIMARY_BUS register in pci-aardvark.c
driver for moving root bus of the root port.

After this change there is no reason for storing bus number (zero) into
first_busno variable, so remove this variable.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: cb056005dc ("arm: a37xx: pci: Add support for accessing PCI Bridge on root bus")
Reviewed-by: Stefan Roese <sr@denx.de>
2022-02-17 14:17:07 +01:00
..
Kconfig pci: layerscape: update the searching compatible of LX2160A PCIe 2022-02-01 15:08:07 +05:30
Makefile pci: Remove unused FSL_PCI_INIT code 2021-12-27 08:41:38 -05:00
pci-aardvark.c arm: a37xx: pci: Ensure that root port is always on root zero bus 2022-02-17 14:17:07 +01:00
pci-emul-uclass.c dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
pci-rcar-gen2.c dm: treewide: Rename ofdata_to_platdata() to of_to_plat() 2020-12-13 16:51:09 -07:00
pci-rcar-gen3.c pci: renesas: Fix BAR mapping on Gen3 2021-02-20 22:38:28 +01:00
pci-uclass.c pci: Fix setting controller's last_busno 2022-01-28 17:58:41 -05:00
pci_auto.c pci: Work around PCIe link training failures 2022-01-14 12:26:42 -05:00
pci_auto_common.c pci: Fix printf format for regions 2021-10-14 19:45:07 -04:00
pci_common.c doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
pci_compat.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
pci_gt64120.c pci: gt64120: Use PCI_CONF1_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pci_internal.h doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
pci_mpc85xx.c pci: mpc85xx: Use PCI_CONF1_EXT_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pci_msc01.c pci: msc01: Use PCI_CONF1_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pci_mvebu.c pci: pci_mvebu: Add support for Kirkwood PCIe controllers 2022-01-20 11:35:29 +01:00
pci_octeontx.c pci: pci_octeontx: Use PCIE_ECAM_OFFSET() macro 2022-01-12 14:21:24 -05:00
pci_rom.c doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
pci_sandbox.c dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
pci_sh4.c common: Drop linux/delay.h from common header 2020-05-18 21:19:23 -04:00
pci_sh7751.c pci: sh7751: Fix access to config space via PCI_CONF1_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pci_sh7780.c pci: sh7780: Use PCI_CONF1_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pci_tegra.c pci: tegra: Use PCI_CONF1_EXT_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pci_x86.c dm: pci: Update the PCI read_config() method to const dev * 2020-02-05 19:33:45 -07:00
pcie_brcmstb.c pci: pcie-brcmstb: Use PCIE_ECAM_OFFSET() macro 2022-01-12 14:21:24 -05:00
pcie_dw_common.c drivers: pci: pcie_dw_common: fix Werror compilation error 2021-05-31 16:35:55 +08:00
pcie_dw_common.h pci: add common Designware PCIe functions 2021-04-15 10:43:17 +08:00
pcie_dw_meson.c pci: pcie_dw_meson: fix usb fail when pci link fails to go up 2021-10-07 10:14:50 +02:00
pcie_dw_mvebu.c pcie: designware: mvebu: do not configure ATU for IO when not used 2021-05-16 06:48:45 +02:00
pcie_dw_rockchip.c pci: pcie_dw_rockchip: Replace msleep occurences by udelay 2021-06-18 14:36:54 +08:00
pcie_dw_sifive.c drivers: pci: add pcie support for fu740 2021-05-31 16:35:54 +08:00
pcie_dw_ti.c pci: pcie_dw_ti: migrate to common Designware PCIe functions 2021-04-15 10:43:17 +08:00
pcie_ecam_generic.c RFC: arm: pci: Add PCI cam support to PCI-E ecam driver 2021-11-17 17:09:47 -05:00
pcie_ecam_synquacer.c pci: Add standard PCIe ECAM macros 2021-11-17 17:04:58 -05:00
pcie_fsl.c pci: fsl: Use PCI_CONF1_EXT_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pcie_fsl.h dm: pci: fsl: Correct the workaround of erratum A-007815 2020-10-23 16:52:09 +05:30
pcie_fsl_fixup.c treewide: convert bd_t to struct bd_info by coccinelle 2020-07-17 09:30:13 -04:00
pcie_imx.c pci: imx: Drop use of DM_PCI 2021-08-05 19:46:35 -04:00
pcie_intel_fpga.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
pcie_iproc.c pci: iproc: Set all 24 bits of PCI class code 2022-01-24 16:03:27 -05:00
pcie_layerscape.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
pcie_layerscape.h pci: layerscape: Remove the shadow SVR definitions 2021-02-08 14:01:18 +05:30
pcie_layerscape_ep.c pci: layerscape-ep: Add check of the PCIe controller enablement 2021-06-17 11:46:11 +05:30
pcie_layerscape_fixup.c pci: layerscape: update the searching compatible of LX2160A PCIe 2022-02-01 15:08:07 +05:30
pcie_layerscape_fixup_common.c fdt_support: Add fdt_for_each_node_by_compatible() helper macro 2022-01-20 11:35:29 +01:00
pcie_layerscape_fixup_common.h treewide: convert bd_t to struct bd_info by coccinelle 2020-07-17 09:30:13 -04:00
pcie_layerscape_gen4.c pci: layerscape: Fix the LUT and msi-map mismatch issue 2021-11-09 17:18:23 +05:30
pcie_layerscape_gen4.h pci: Drop dm.h inclusion from header file 2020-08-03 22:19:54 -04:00
pcie_layerscape_gen4_fixup.c fdt_support: Remove FDT_STATUS_FAIL_ERROR_CODE 2021-12-19 09:50:47 +01:00
pcie_layerscape_rc.c pci: layerscape: Fix the LUT and msi-map mismatch issue 2021-11-09 17:18:23 +05:30
pcie_mediatek.c pci: mediatek: Use PCI_CONF1_EXT_ADDRESS() macro 2022-01-12 14:21:24 -05:00
pcie_octeon.c mips: octeon: Add Octeon PCIe host controller driver 2021-04-28 10:05:12 +02:00
pcie_phytium.c pci: Add standard PCIe ECAM macros 2021-11-17 17:04:58 -05:00
pcie_rockchip.c pci: Add standard PCIe ECAM macros 2021-11-17 17:04:58 -05:00
pcie_uniphier.c pci: uniphier: Add UniPhier PCIe controller driver 2021-07-14 16:48:08 -04:00
pcie_xilinx.c pci: Add standard PCIe ECAM macros 2021-11-17 17:04:58 -05:00