diff options
| author | Stefan Roese <sr@denx.de> | 2008-06-06 00:22:29 +1000 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2008-06-11 08:06:51 -0400 |
| commit | 995ada8d5e6b3d5a32ca3e544a564d0623c4f3fa (patch) | |
| tree | 2fd4502a2cb80b905da9e340e81924f3f4f0ad6d | |
| parent | 156cea23acffaa270cf243a3a0f43e1e30682081 (diff) | |
powerpc/4xx: PCIe driver now detects if a port is disabled via the dev-tree
This patch add a check to the PPC4xx PCIe driver to detect if the port
is disabled via the device-tree. This is needed for the AMCC Canyonlands
board which has an option to either select 2 PCIe ports or 1 PCIe port
and one SATA port. The SATA port and the 1st PCIe port pins are multiplexed
so we can't start both drivers.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| -rw-r--r-- | arch/powerpc/sysdev/ppc4xx_pci.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index b4a54c52e88..76886cf0e6d 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -1634,6 +1634,15 @@ static void __init ppc4xx_probe_pciex_bridge(struct device_node *np) } port = &ppc4xx_pciex_ports[portno]; port->index = portno; + + /* + * Check if device is enabled + */ + if (!of_device_is_available(np)) { + printk(KERN_INFO "PCIE%d: Port disabled via device-tree\n", port->index); + return; + } + port->node = of_node_get(np); pval = of_get_property(np, "sdr-base", NULL); if (pval == NULL) { |