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authorSimon Glass <sjg@chromium.org>2015-07-06 16:47:44 -0600
committerSimon Glass <sjg@chromium.org>2015-07-21 17:39:38 -0600
commitaba92962498609bcfee7a2b5332aa97440179f1d (patch)
treeb6f45410c865d3b0e141ef4d01c00365b9d9e6e8 /common
parente62b5266356ab99ac9296cf1b323d873e7dd6add (diff)
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dm: pci: Add support for PCI driver matching
At present all PCI devices must be present in the device tree in order to be used. Many or most PCI devices don't require any configuration other than that which is done automatically by U-Boot. It is inefficent to add a node with nothing but a compatible string in order to get a device working. Add a mechanism whereby PCI drivers can be declared along with the device parameters they support (vendor/device/class). When no suitable driver is found in the device tree the list of such devices is consulted to determine the correct driver. If this also fails, then a generic driver is used as before. The mechanism used is very similar to that provided by Linux and the header file defintions are copied from Linux 4.1. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'common')
-rw-r--r--common/cmd_tsi148.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/common/cmd_tsi148.c b/common/cmd_tsi148.c
index dc488b2..ea96d0f 100644
--- a/common/cmd_tsi148.c
+++ b/common/cmd_tsi148.c
@@ -16,8 +16,8 @@
#include <tsi148.h>
-#define PCI_VENDOR PCI_VENDOR_ID_TUNDRA
-#define PCI_DEVICE PCI_DEVICE_ID_TUNDRA_TSI148
+#define LPCI_VENDOR PCI_VENDOR_ID_TUNDRA
+#define LPCI_DEVICE PCI_DEVICE_ID_TUNDRA_TSI148
typedef struct _TSI148_DEV TSI148_DEV;
@@ -41,7 +41,7 @@ int tsi148_init(void)
pci_dev_t busdevfn;
unsigned int val;
- busdevfn = pci_find_device(PCI_VENDOR, PCI_DEVICE, 0);
+ busdevfn = pci_find_device(LPCI_VENDOR, LPCI_DEVICE, 0);
if (busdevfn == -1) {
puts("Tsi148: No Tundra Tsi148 found!\n");
return -1;
@@ -68,7 +68,7 @@ int tsi148_init(void)
/* check mapping */
debug("Tsi148: Read via mapping, PCI_ID = %08X\n",
readl(&dev->uregs->pci_id));
- if (((PCI_DEVICE << 16) | PCI_VENDOR) != readl(&dev->uregs->pci_id)) {
+ if (((LPCI_DEVICE << 16) | LPCI_VENDOR) != readl(&dev->uregs->pci_id)) {
printf("Tsi148: Cannot read PCI-ID via Mapping: %08x\n",
readl(&dev->uregs->pci_id));
result = -1;