diff mbox series

[19/26] pci: mpc85xx: Support controller register physical address beyond 32-bit

Message ID 1612710687-56493-20-git-send-email-bmeng.cn@gmail.com
State Superseded
Delegated to: Priyanka Jain
Headers show
Series ppc: qemu: Convert qemu-ppce500 to driver model | expand

Commit Message

Bin Meng Feb. 7, 2021, 3:11 p.m. UTC 
devfdt_get_addr_index() returns fdt_addr_t which might be a 64-bit
physical address. Use map_physmem() to return the virtual address
that can be used by a 32-bit machine.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
---

 drivers/pci/pci_mpc85xx.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/pci/pci_mpc85xx.c b/drivers/pci/pci_mpc85xx.c
index 7387a1e..f0d469a 100644
--- a/drivers/pci/pci_mpc85xx.c
+++ b/drivers/pci/pci_mpc85xx.c
@@ -134,9 +134,8 @@  static int mpc85xx_pci_of_to_plat(struct udevice *dev)
 	addr = devfdt_get_addr_index(dev, 0);
 	if (addr == FDT_ADDR_T_NONE)
 		return -EINVAL;
-	priv->cfg_addr = (void __iomem *)addr;
-	addr += 4;
-	priv->cfg_data = (void __iomem *)addr;
+	priv->cfg_addr = (void __iomem *)map_physmem(addr, 0, MAP_NOCACHE);
+	priv->cfg_data = (void __iomem *)((ulong)priv->cfg_addr + 4);
 
 	return 0;
 }