Just for info: I tested it on my Nemo board today and it works.
-- Christian
On 31 July 2018 at 2:04PM, Michael Ellerman wrote:
Michael Ellerman <m...@ellerman.id.au> writes:
Darren Stevens <dar...@stevens-zone.net> writes:
Pasemi arch code finds the root of the PCI-e bus by searching the
device-tree for a node called 'pxp'. But the root bus has a
compatible property of 'pasemi,rootbus' so search for that instead.
Signed-off-by: Darren Stevens <dar...@stevens-zone.net>
---
This works on the Amigaone X1000, I don't know if this method of
finding the pci bus was there bcause of earlier firmwares.
Does anyone have another pasemi board they can test this on?
The last time I plugged mine in it popped the power supply and took out
power to half the office :) - I haven't had a chance to try it since.
I actually I remembered I have a device tree lying around from an electra.
It has:
[I] home:pxp@0,80000000(7)(I)> lsprop name compatible
name "pxp"
compatible "pasemi,rootbus"
"pa-pxp"
So it looks like the patch would work fine on it at least.
cheers
diff --git a/arch/powerpc/platforms/pasemi/pci.c
b/arch/powerpc/platforms/pasemi/pci.c
index c7c8607..be62380 100644
--- a/arch/powerpc/platforms/pasemi/pci.c
+++ b/arch/powerpc/platforms/pasemi/pci.c
@@ -216,6 +216,7 @@ static int __init pas_add_bridge(struct device_node *dev)
void __init pas_pci_init(void)
{
struct device_node *np, *root;
+ int res;
root = of_find_node_by_path("/");
if (!root) {
@@ -226,11 +227,11 @@ void __init pas_pci_init(void)
pci_set_flags(PCI_SCAN_ALL_PCIE_DEVS);
- for (np = NULL; (np = of_get_next_child(root, np)) != NULL;)
- if (np->name && !strcmp(np->name, "pxp") && !pas_add_bridge(np))
- of_node_get(np);
-
- of_node_put(root);
+ np = of_find_compatible_node(root, NULL, "pasemi,rootbus");
+ if (np) {
+ res = pas_add_bridge(np);
+ of_node_put(np);
+ }
}
void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset)
