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Message-Id: <20190729190710.522812464@linuxfoundation.org>
Date: Mon, 29 Jul 2019 21:22:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Hou Zhiqiang <Zhiqiang.Hou@....com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Minghuan Lian <Minghuan.Lian@....com>,
Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 063/113] PCI: mobiveil: Fix the Class Code field
[ Upstream commit 0122af0a08243f344a438f924e5c2486486555b3 ]
Fix up the Class Code field in PCI configuration space and set it to
PCI_CLASS_BRIDGE_PCI.
Move the Class Code fixup to function mobiveil_host_init() where
it belongs.
Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@....com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/pci/controller/pcie-mobiveil.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index d9f2d0f2d602..3e81e68b5ce0 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -565,6 +565,12 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie)
}
}
+ /* fixup for PCIe class register */
+ value = csr_readl(pcie, PAB_INTP_AXI_PIO_CLASS);
+ value &= 0xff;
+ value |= (PCI_CLASS_BRIDGE_PCI << 16);
+ csr_writel(pcie, value, PAB_INTP_AXI_PIO_CLASS);
+
/* setup MSI hardware registers */
mobiveil_pcie_enable_msi(pcie);
@@ -805,9 +811,6 @@ static int mobiveil_pcie_probe(struct platform_device *pdev)
goto error;
}
- /* fixup for PCIe class register */
- csr_writel(pcie, 0x060402ab, PAB_INTP_AXI_PIO_CLASS);
-
/* initialize the IRQ domains */
ret = mobiveil_pcie_init_irq_domain(pcie);
if (ret) {
--
2.20.1
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