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-rw-r--r--drivers/pci/fsl_pci_init.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index 52792dc..af20cf0 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -543,6 +543,13 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
}
+#ifdef CONFIG_SYS_FSL_ERRATUM_A007815
+ /* The Read-Only Write Enable bit defaults to 1 instead of 0.
+ * Set to 0 to protect the read-only registers.
+ */
+ clrbits_be32(&pci->dbi_ro_wr_en, 0x01);
+#endif
+
/* Use generic setup_device to initialize standard pci regs,
* but do not allocate any windows since any BAR found (such
* as PCSRBAR) is not in this cpu's memory space.