[PATCH 051/111] AT697 PCI: abort whhen a peripheral PCI system detected
Daniel Hellstrom
daniel at gaisler.com
Thu Feb 26 16:38:53 UTC 2015
---
c/src/lib/libbsp/sparc/leon2/pci/at697_pci.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/leon2/pci/at697_pci.c b/c/src/lib/libbsp/sparc/leon2/pci/at697_pci.c
index 76b9c4d..6289a56 100644
--- a/c/src/lib/libbsp/sparc/leon2/pci/at697_pci.c
+++ b/c/src/lib/libbsp/sparc/leon2/pci/at697_pci.c
@@ -440,6 +440,13 @@ int at697pci_hw_init(struct at697pci_priv *priv)
return -1;
}
+ /* If not in system slot we are not host and we must abort.
+ * This is a host only driver.
+ */
+ if ((regs->pciis & 0x1000) != 0) {
+ return -1;
+ }
+
/* Reset PCI Core */
regs->pciic = 0xffffffff;
@@ -578,7 +585,7 @@ int at697pci_init1(struct drvmgr_dev *dev)
if (at697pci_init(priv)) {
DBG("Failed to initialize at697pci driver\n");
- return DRVMGR_FAIL;
+ return DRVMGR_EIO;
}
/* Host is always Big-Endian */
--
1.7.0.4
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