From: Pali Rohár <pali@kernel.org>
Date: Thu, 13 Apr 2023 20:41:44 +0000 (+0200)
Subject: pci: mpc85xx: Add missing sync() after writing to PCI config space
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=76c72930f917ab348ff08d28a96b827d1626cb3a;p=u-boot.git

pci: mpc85xx: Add missing sync() after writing to PCI config space

On PowerPC we should use barrier after store operation to HW register.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
---

diff --git a/drivers/pci/pci_mpc85xx.c b/drivers/pci/pci_mpc85xx.c
index 8a81a74067..23f14db830 100644
--- a/drivers/pci/pci_mpc85xx.c
+++ b/drivers/pci/pci_mpc85xx.c
@@ -41,6 +41,7 @@ static int mpc85xx_pci_dm_write_config(struct udevice *dev, pci_dev_t bdf,
 	out_be32(priv->cfg_addr, addr);
 	sync();
 	out_le32(priv->cfg_data, pci_conv_size_to_32(0, value, offset, size));
+	sync();
 
 	return 0;
 }