From f8203e3bb5f99c88199769034fe0f0af2879b96b Mon Sep 17 00:00:00 2001
From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Date: Tue, 17 Dec 2019 10:10:40 +0000
Subject: [PATCH] pci: layerscape: Fix the disabling of Expansion ROM BAR
The software will still get non-zero Expansion ROM BAR size
even when the BAR_EN bit is cleared. The BAR_EN bit of
register EXP_ROM_BAR_MASK_RC is not working as expected,
so this patch changes to mask all the bits.
Fixes: 80afc63fc342 ("pci: layerscape: add pci driver based on DM")
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
---
drivers/pci/pcie_layerscape.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c
index 47394bdba7..22d10cf737 100644
--- a/drivers/pci/pcie_layerscape.c
+++ b/drivers/pci/pcie_layerscape.c
@@ -325,7 +325,7 @@ static void ls_pcie_disable_bars(struct ls_pcie *pcie)
dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_BASE_ADDRESS_0);
dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_BASE_ADDRESS_1);
- dbi_writel(pcie, 0, PCIE_CS2_OFFSET + PCI_ROM_ADDRESS1);
+ dbi_writel(pcie, 0xfffffffe, PCIE_CS2_OFFSET + PCI_ROM_ADDRESS1);
}
static void ls_pcie_setup_ctrl(struct ls_pcie *pcie)
--
2.39.5