[PATCH 07/13] PCI: brcmstb: Declare and assign quirk 32BIT_PCI_OPS

[Jim Quinlan]

Declare a new quirk that indicates SoCs where the config-space accesses are
restricted to 32bit R/W.

Signed-off-by: Jim Quinlan <james.quinlan@xxxxxxxxxxxx>
---
 drivers/pci/controller/pcie-brcmstb.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 8927d1d97f4a..be414d346855 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -292,6 +292,8 @@ struct inbound_win {
 #define CFG_QUIRK_OB_WIN_32BIT_ADDR		BIT(1)
 /* Each of the outbound windows size must be <= SZ_128M */
 #define CFG_QUIRK_OB_WIN_MAXSZ_128MB		BIT(2)
+/* PCIe HW can only access config space with 32bit R/W */
+#define CFG_QUIRK_32BIT_PCI_OPS			BIT(3)
 
 /* FLAGS */
 #define BFLAG(pcie, flag)			((pcie)->cfg->flags & CFG_FLG_ ## flag)
@@ -1996,7 +1998,7 @@ static const struct pcie_cfg_data bcm7425_cfg = {
 	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
 	.num_inbound_wins = 3,
 	.quirks		= CFG_QUIRK_OB_WIN_32BIT_ADDR
-		| CFG_QUIRK_OB_WIN_MAXSZ_128MB,
+		| CFG_QUIRK_OB_WIN_MAXSZ_128MB | CFG_QUIRK_32BIT_PCI_OPS,
 	.flags		= CFG_FLG_IS_BMIPS,
 };
 
@@ -2050,7 +2052,7 @@ static struct pci_ops brcm_pcie_ops = {
 	.remove_bus = brcm_pcie_remove_bus,
 };
 
-static struct pci_ops brcm7425_pcie_ops = {
+static struct pci_ops brcm_pcie_ops32 = {
 	.map_bus = brcm7425_pcie_map_bus,
 	.read = pci_generic_config_read32,
 	.write = pci_generic_config_write32,
@@ -2180,8 +2182,8 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 		}
 	}
 
-	bridge->ops = pcie->cfg->soc_base == BCM7425 ?
-				&brcm7425_pcie_ops : &brcm_pcie_ops;
+	bridge->ops = BQUIRK(pcie, 32BIT_PCI_OPS)
+		? &brcm_pcie_ops32 : &brcm_pcie_ops;
 	bridge->sysdata = pcie;
 
 	platform_set_drvdata(pdev, pcie);
-- 
2.34.1