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| author | Per Andersson <avtobiff@gmail.com> | 2008-08-11 12:00:52 +0200 |
|---|---|---|
| committer | Nicolas Pitre <nico@cam.org> | 2008-08-21 22:15:17 -0400 |
| commit | 7a6bb2622692495d1b7445a3e8c257601b803b02 (patch) | |
| tree | 5735707076af1295aa6ef9be2413dfab291bd6da | |
| parent | 6a55617ed5d1aa62b850de2cf66f5ede2eef4825 (diff) | |
| download | linux-7a6bb2622692495d1b7445a3e8c257601b803b02.tar.gz linux-7a6bb2622692495d1b7445a3e8c257601b803b02.tar.bz2 linux-7a6bb2622692495d1b7445a3e8c257601b803b02.zip | |
[ARM] Orion: Fix boot crash on Kurobox Pro
The Kurobox Pro crashes when any of the PCI controller registers
are accessed. This patch adds a function to the Orion PCI handling
code that board support code can call to disable enumerating the
PCI bus entirely, and makes the Kurobox Pro PCI-related init code
call this function.
Signed-off-by: Per Andersson <avtobiff@gmail.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
| -rw-r--r-- | arch/arm/mach-orion5x/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/kurobox_pro-setup.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/pci.c | 13 |
3 files changed, 14 insertions, 4 deletions
diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h index e75bd7004b94..0bd195551a27 100644 --- a/arch/arm/mach-orion5x/common.h +++ b/arch/arm/mach-orion5x/common.h @@ -41,6 +41,7 @@ struct pci_bus; struct pci_sys_data; void orion5x_pcie_id(u32 *dev, u32 *rev); +void orion5x_pci_disable(void); void orion5x_pci_set_cardbus_mode(void); int orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys); struct pci_bus *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys); diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c index cb72f1bb9cb7..e321ec331839 100644 --- a/arch/arm/mach-orion5x/kurobox_pro-setup.c +++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c @@ -146,8 +146,10 @@ static struct hw_pci kurobox_pro_pci __initdata = { static int __init kurobox_pro_pci_init(void) { - if (machine_is_kurobox_pro()) + if (machine_is_kurobox_pro()) { + orion5x_pci_disable(); pci_common_init(&kurobox_pro_pci); + } return 0; } diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c index fbceecc4b7ec..a7b7d77b1b09 100644 --- a/arch/arm/mach-orion5x/pci.c +++ b/arch/arm/mach-orion5x/pci.c @@ -541,6 +541,13 @@ static void __devinit rc_pci_fixup(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL, PCI_ANY_ID, rc_pci_fixup); +static int orion5x_pci_disabled __initdata; + +void __init orion5x_pci_disable(void) +{ + orion5x_pci_disabled = 1; +} + void __init orion5x_pci_set_cardbus_mode(void) { orion5x_pci_cardbus_mode = 1; @@ -553,7 +560,7 @@ int __init orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys) if (nr == 0) { orion_pcie_set_local_bus_nr(PCIE_BASE, sys->busnr); ret = pcie_setup(sys); - } else if (nr == 1) { + } else if (nr == 1 && !orion5x_pci_disabled) { orion5x_pci_set_bus_nr(sys->busnr); ret = pci_setup(sys); } @@ -567,7 +574,7 @@ struct pci_bus __init *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys if (nr == 0) { bus = pci_scan_bus(sys->busnr, &pcie_ops, sys); - } else if (nr == 1) { + } else if (nr == 1 && !orion5x_pci_disabled) { bus = pci_scan_bus(sys->busnr, &pci_ops, sys); } else { bus = NULL; @@ -584,7 +591,7 @@ int __init orion5x_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) /* * PCIe endpoint? */ - if (bus < orion5x_pci_local_bus_nr()) + if (orion5x_pci_disabled || bus < orion5x_pci_local_bus_nr()) return IRQ_ORION5X_PCIE0_INT; return -1; |