diff options
| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2006-04-01 21:33:35 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-04-01 21:33:35 +0400 |
| commit | 532bda5d9cd2f94a9e374765c23858c7d8641f66 (patch) | |
| tree | a87fc82de89a993867d11e328b6b82afb16fe83a | |
| parent | 50c37e216132d2185a15d5cf6b966adf6ecea535 (diff) | |
| download | linux-532bda5d9cd2f94a9e374765c23858c7d8641f66.tar.xz | |
[ARM] 3438/1: ixp23xx: add pci slave support
Patch from Lennert Buytenhek
On the Double Espresso board, the IXP2350s are PCI slave devices and
we skip calling pci_common_init() as that enumerates the bus. But even
though we are a PCI slave device, there is still some PCI-related setup
that has to be done.
Create ixp23xx_pci_common_init(), move the common initialisation bits
there, and have this function called from both the PCI master and the
PCI slave init path.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mach-ixp23xx/espresso.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/pci.c | 12 | ||||
| -rw-r--r-- | include/asm-arm/arch-ixp23xx/platform.h | 1 |
3 files changed, 21 insertions, 1 deletions
diff --git a/arch/arm/mach-ixp23xx/espresso.c b/arch/arm/mach-ixp23xx/espresso.c index 2327c9790416..bf688c128630 100644 --- a/arch/arm/mach-ixp23xx/espresso.c +++ b/arch/arm/mach-ixp23xx/espresso.c @@ -44,6 +44,15 @@ #include <asm/mach/irq.h> #include <asm/mach/pci.h> +static int __init espresso_pci_init(void) +{ + if (machine_is_espresso()) + ixp23xx_pci_slave_init(); + + return 0; +}; +subsys_initcall(espresso_pci_init); + static void __init espresso_init(void) { physmap_configure(0x90000000, 0x02000000, 2, NULL); diff --git a/arch/arm/mach-ixp23xx/pci.c b/arch/arm/mach-ixp23xx/pci.c index 5330ad78c1bb..ba6b4367a1d5 100644 --- a/arch/arm/mach-ixp23xx/pci.c +++ b/arch/arm/mach-ixp23xx/pci.c @@ -201,7 +201,7 @@ int clear_master_aborts(void) return 0; } -void __init ixp23xx_pci_preinit(void) +static void __init ixp23xx_pci_common_init(void) { #ifdef __ARMEB__ *IXP23XX_PCI_CONTROL |= 0x20000; /* set I/O swapping */ @@ -220,6 +220,11 @@ void __init ixp23xx_pci_preinit(void) } else { *IXP23XX_PCI_CPP_ADDR_BITS |= (1 << 1); } +} + +void __init ixp23xx_pci_preinit(void) +{ + ixp23xx_pci_common_init(); hook_fault_code(16+6, ixp23xx_pci_abort_handler, SIGBUS, "PCI config cycle to non-existent device"); @@ -273,3 +278,8 @@ int ixp23xx_pci_setup(int nr, struct pci_sys_data *sys) return 1; } + +void ixp23xx_pci_slave_init(void) +{ + ixp23xx_pci_common_init(); +} diff --git a/include/asm-arm/arch-ixp23xx/platform.h b/include/asm-arm/arch-ixp23xx/platform.h index f85b4685a491..e4d99060a049 100644 --- a/include/asm-arm/arch-ixp23xx/platform.h +++ b/include/asm-arm/arch-ixp23xx/platform.h @@ -22,6 +22,7 @@ void ixp23xx_sys_init(void); int ixp23xx_pci_setup(int, struct pci_sys_data *); void ixp23xx_pci_preinit(void); struct pci_bus *ixp23xx_pci_scan_bus(int, struct pci_sys_data*); +void ixp23xx_pci_slave_init(void); extern struct sys_timer ixp23xx_timer; |