[PATCH v2 2/8] PCI: brcmstb: Write to internal register to change link cap

[Jim Quinlan <james.quinlan@broadcom.com>]

The driver was mistakenly writing to a RO config-space register
(PCI_EXP_LNKCAP).  Although harmless in this case, the proper destination
is an internal RW register that is reflected by PCI_EXP_LNKCAP.

Fixes: c0452137034bda8f686dd9a2e167949bfffd6776 ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver")

Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
---
 drivers/pci/controller/pcie-brcmstb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 64a7511e66a8..98542e74aa16 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -413,10 +413,10 @@ static int brcm_pcie_set_ssc(struct brcm_pcie *pcie)
 static void brcm_pcie_set_gen(struct brcm_pcie *pcie, int gen)
 {
 	u16 lnkctl2 = readw(pcie->base + BRCM_PCIE_CAP_REGS + PCI_EXP_LNKCTL2);
-	u32 lnkcap = readl(pcie->base + BRCM_PCIE_CAP_REGS + PCI_EXP_LNKCAP);
+	u32 lnkcap = readl(pcie->base + PCIE_RC_CFG_PRIV1_LINK_CAPABILITY);
 
 	lnkcap = (lnkcap & ~PCI_EXP_LNKCAP_SLS) | gen;
-	writel(lnkcap, pcie->base + BRCM_PCIE_CAP_REGS + PCI_EXP_LNKCAP);
+	writel(lnkcap, pcie->base + PCIE_RC_CFG_PRIV1_LINK_CAPABILITY);
 
 	lnkctl2 = (lnkctl2 & ~0xf) | gen;
 	writew(lnkctl2, pcie->base + BRCM_PCIE_CAP_REGS + PCI_EXP_LNKCTL2);
-- 
2.43.0