From: Richard Zhu <Richard.Zhu@freescale.com>
Date: Mon, 2 Nov 2015 03:41:02 +0000 (+0800)
Subject: MLK-11803 pci: imx: imx6qp pcie ep self-test failed
X-Git-Tag: C0P2-H0.0--20200415~4038
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=e05161bef0b5be3c244f39334036d954dcdf3cf1;p=linux.git

MLK-11803 pci: imx: imx6qp pcie ep self-test failed

imx pcie used the wrab mode to do the cached access
methods on axi bus. There is 64bytes address mis-aligned
problem.
Disable the cached operations.

Signed-off-by: Richard Zhu <Richard.Zhu@freescale.com>
(cherry picked from commit 85db70336ab66136481926bcd7f5abe599e2aa4f)
---

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 1bd1c524aa10..fcd9b6532c23 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -1321,11 +1321,7 @@ static int __init imx6_pcie_probe(struct platform_device *pdev)
 		 * reserved ddr memory after write the ddr_test_region
 		 * content to rc.
 		 */
-		if (imx6_pcie->variant == IMX7D)
-			pcie_arb_base_addr = ioremap_nocache(pp->mem_base,
-					test_region_size);
-		else
-			pcie_arb_base_addr = ioremap_cache(pp->mem_base,
+		pcie_arb_base_addr = ioremap_nocache(pp->mem_base,
 					test_region_size);
 
 		if (!pcie_arb_base_addr) {