diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2023-08-24 15:12:19 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-01-29 18:23:22 +0000 |
| commit | 80c79a5dc31cca9f157cd2f35f435dfa7648ce11 (patch) | |
| tree | 0f1bcc76e774ef03808e1b1e5f531d5464aff9e4 /src/soc/amd/stoneyridge/northbridge.c | |
| parent | 27ce0ec2b62bf824a94dfeaf223a08bd26465fcd (diff) | |
device/device.h: Drop multiple links
Multiple links are unused throughout the tree and make the code more
confusing as an iteration over all busses is needed to get downstream
devices. This also not done consistently e.g. the allocator does not
care about multiple links on busses. A better way of dealing multiple
links below a device is to feature dummy devices with each their
respective bus.
This drops the sconfig capability to declare the same device multiple
times which was previously used to declare multiple links.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: Iab6fe269faef46ae77ed1ea425440cf5c7dbd49b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78328
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jincheng Li <jincheng.li@intel.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Diffstat (limited to 'src/soc/amd/stoneyridge/northbridge.c')
| -rw-r--r-- | src/soc/amd/stoneyridge/northbridge.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c index deebfb351f..b95c4cdf2e 100644 --- a/src/soc/amd/stoneyridge/northbridge.c +++ b/src/soc/amd/stoneyridge/northbridge.c @@ -52,16 +52,9 @@ static void read_resources(struct device *dev) static void create_vga_resource(struct device *dev) { - struct bus *link; - - /* find out which link the VGA card is connected, - * we only deal with the 'first' vga card */ - for (link = dev->link_list ; link ; link = link->next) - if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) - break; - - /* no VGA card installed */ - if (link == NULL) + if (!dev->link_list) + return; + if (!(dev->link_list->bridge_ctrl & PCI_BRIDGE_CTL_VGA)) return; printk(BIOS_DEBUG, "VGA: %s has VGA device\n", dev_path(dev)); @@ -71,14 +64,11 @@ static void create_vga_resource(struct device *dev) static void set_resources(struct device *dev) { - struct bus *bus; - /* do we need this? */ create_vga_resource(dev); - for (bus = dev->link_list ; bus ; bus = bus->next) - if (bus->children) - assign_resources(bus); + if (dev->link_list && dev->link_list->children) + assign_resources(dev->link_list); } static void northbridge_init(struct device *dev) |