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| author | Stefan Roese <sr@denx.de> | 2010-05-21 15:06:19 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2010-07-01 10:26:01 +0200 |
| commit | db643773fcea431c9dcc7f2bdb3bc337d2b268b4 (patch) | |
| tree | 614d327ef9600862b6539c85f2aae13b5795aa50 | |
| parent | fe7cca715c69f66efdc9c64462b0fd0a445331a5 (diff) | |
| download | u-boot-imx-db643773fcea431c9dcc7f2bdb3bc337d2b268b4.zip u-boot-imx-db643773fcea431c9dcc7f2bdb3bc337d2b268b4.tar.gz u-boot-imx-db643773fcea431c9dcc7f2bdb3bc337d2b268b4.tar.bz2 | |
ppc4xx: Enable PCIe support without PCI support on PPC440/460
By not defining CONFIG_SYS_PCI_MASTER_INIT and CONFIG_SYS_PCI_TARGET_INIT,
PCI support (host and adapter) will not be enabled. But it's still
possible to use the U-Boot PCI infrastructure for the PCIe ports.
This configuration option is needed for a new 460GT board, which uses
PCIe but has PCI disabled.
Signed-off-by: Stefan Roese <sr@denx.de>
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/4xx_pci.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/ppc4xx/4xx_pci.c b/arch/powerpc/cpu/ppc4xx/4xx_pci.c index eed4534..bfba952 100644 --- a/arch/powerpc/cpu/ppc4xx/4xx_pci.c +++ b/arch/powerpc/cpu/ppc4xx/4xx_pci.c @@ -476,7 +476,9 @@ void pci_init_board(void) *-----------------------------------------------------------------------------*/ #if defined(CONFIG_440) +#if defined(CONFIG_SYS_PCI_MASTER_INIT) || defined(CONFIG_SYS_PCI_TARGET_INIT) static struct pci_controller ppc440_hose = {0}; +#endif /* * This routine is called to determine if a pci scan should be @@ -704,6 +706,7 @@ void pci_master_init(struct pci_controller *hose) __attribute__((weak, alias("__pci_master_init"))); #endif /* CONFIG_SYS_PCI_MASTER_INIT */ +#if defined(CONFIG_SYS_PCI_MASTER_INIT) || defined(CONFIG_SYS_PCI_TARGET_INIT) int pci_440_init (struct pci_controller *hose) { int reg_num = 0; @@ -845,12 +848,19 @@ int pci_440_init (struct pci_controller *hose) } return hose->last_busno; } +#endif void pci_init_board(void) { - int busno; + int busno = 0; + /* + * Only init PCI when either master or target functionality + * is selected. + */ +#if defined(CONFIG_SYS_PCI_MASTER_INIT) || defined(CONFIG_SYS_PCI_TARGET_INIT) busno = pci_440_init (&ppc440_hose); +#endif #if (defined(CONFIG_440SPE) || \ defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \ !defined(CONFIG_PCI_DISABLE_PCIE) |