[PATCH v3 21/38] pci: mpc85xx: Support 64-bit bus and cpu address

Bin Meng bmeng.cn at gmail.com
Thu Feb 25 10:22:42 CET 2021


At present the driver only supports 32-bit bus and cpu address.
The controller's outbound registers/fields for extended address
are not programmed. Let's program them to support 64-bit bus and
cpu address.

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
Reviewed-by: Heiko Schocher <hs at denx.de>
---

(no changes since v1)

 drivers/pci/pci_mpc85xx.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/pci_mpc85xx.c b/drivers/pci/pci_mpc85xx.c
index f0d469a..574cb78 100644
--- a/drivers/pci/pci_mpc85xx.c
+++ b/drivers/pci/pci_mpc85xx.c
@@ -93,18 +93,18 @@ static int mpc85xx_pci_dm_probe(struct udevice *dev)
 
 	pcix = priv->cfg_addr;
 	/* BAR 1: memory */
-	out_be32(&pcix->potar1, (mem->bus_start >> 12) & 0x000fffff);
-	out_be32(&pcix->potear1, 0);
-	out_be32(&pcix->powbar1, (mem->phys_start >> 12) & 0x000fffff);
-	out_be32(&pcix->powbear1, 0);
+	out_be32(&pcix->potar1, mem->bus_start >> 12);
+	out_be32(&pcix->potear1, (u64)mem->bus_start >> 44);
+	out_be32(&pcix->powbar1, mem->phys_start >> 12);
+	out_be32(&pcix->powbear1, (u64)mem->phys_start >> 44);
 	out_be32(&pcix->powar1, (POWAR_EN | POWAR_MEM_READ |
 		 POWAR_MEM_WRITE | (__ilog2(mem->size) - 1)));
 
 	/* BAR 1: IO */
-	out_be32(&pcix->potar2, (io->bus_start >> 12) & 0x000fffff);
-	out_be32(&pcix->potear2, 0);
-	out_be32(&pcix->powbar2, (io->phys_start >> 12) & 0x000fffff);
-	out_be32(&pcix->powbear2, 0);
+	out_be32(&pcix->potar2, io->bus_start >> 12);
+	out_be32(&pcix->potear2, (u64)io->bus_start >> 44);
+	out_be32(&pcix->powbar2, io->phys_start >> 12);
+	out_be32(&pcix->powbear2, (u64)io->phys_start >> 44);
 	out_be32(&pcix->powar2, (POWAR_EN | POWAR_IO_READ |
 		 POWAR_IO_WRITE | (__ilog2(io->size) - 1)));
 
-- 
2.7.4



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