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| author | Pali Rohár <pali@kernel.org> | 2022-07-06 12:43:07 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-07-27 21:36:04 +1000 |
| commit | 7f102d61983275ab68b5ac2715afa35c5f4ffd86 (patch) | |
| tree | b8fa1863a3953cab80b9d315fdfa09f9e6e589fa /arch/powerpc/kernel | |
| parent | 704544588735b2e1115212dbba1c210b3687ff7a (diff) | |
| download | linux-7f102d61983275ab68b5ac2715afa35c5f4ffd86.tar.bz2 | |
powerpc/pci: Disable filling pci-OF-bus-map for non-chrp/powermac
Creating or filling pci-OF-bus-map property in the device-tree is
deprecated since May 2006 [1] and was used only in old platforms like
PowerMac.
Currently kernel code handles it only for chrp and powermac code. So
completely disable filling pci-OF-bus-map property for non-chrp and
non-powermac platforms.
[1] - https://lore.kernel.org/linuxppc-dev/1148016268.13249.14.camel@localhost.localdomain/
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220706104308.5390-5-pali@kernel.org
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/pci_32.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 3291af89cea4..2f7284b68f06 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -37,15 +37,12 @@ EXPORT_SYMBOL(isa_io_base); EXPORT_SYMBOL(pci_dram_offset); static void fixup_cpc710_pci64(struct pci_dev* dev); -static u8* pci_to_OF_bus_map; /* By default, we don't re-assign bus numbers. We do this only on * some pmacs */ static int pci_assign_all_buses; -static int pci_bus_count; - /* This will remain NULL for now, until isa-bridge.c is made common * to both 32-bit and 64-bit. */ @@ -65,6 +62,11 @@ fixup_cpc710_pci64(struct pci_dev* dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CPC710_PCI64, fixup_cpc710_pci64); +#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_CHRP) + +static u8* pci_to_OF_bus_map; +static int pci_bus_count; + /* * Functions below are used on OpenFirmware machines. */ @@ -221,6 +223,8 @@ pci_create_OF_bus_map(void) } #endif +#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_CHRP) */ + void pcibios_setup_phb_io_space(struct pci_controller *hose) { unsigned long io_offset; @@ -252,6 +256,8 @@ static int __init pcibios_init(void) if (pci_assign_all_buses || next_busno <= hose->last_busno) next_busno = hose->last_busno + pcibios_assign_bus_offset; } + +#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_CHRP) pci_bus_count = next_busno; /* OpenFirmware based machines need a map of OF bus @@ -260,6 +266,7 @@ static int __init pcibios_init(void) */ if (pci_assign_all_buses) pcibios_make_OF_bus_map(); +#endif /* Call common code to handle resource allocation */ pcibios_resource_survey(); |