From: Srinath Mannam <srinath.mannam@broadcom.com>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>, Ray Jui <rjui@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Roman Bacik <roman.bacik@broadcom.com>,
Srinath Mannam <srinath.mannam@broadcom.com>
Subject: [PATCH v2 2/3] PCI: iproc: fix invalidating PAXB address mapping
Date: Tue, 15 Sep 2020 19:15:40 +0530 [thread overview]
Message-ID: <20200915134541.14711-3-srinath.mannam@broadcom.com> (raw)
In-Reply-To: <20200915134541.14711-1-srinath.mannam@broadcom.com>
From: Roman Bacik <roman.bacik@broadcom.com>
Second stage bootloader prior to Linux boot may use all inbound windows
including IARR1/IMAP1. We need to ensure all previous configuration of
inbound windows are invalidated during the initialization stage of the
Linux iProc PCIe driver. Add fix to define and invalidate IARR1/IMAP1
because it was missed in previous patch.
Fixes: 9415743e4c8a ("PCI: iproc: Invalidate PAXB address mapping")
Signed-off-by: Roman Bacik <roman.bacik@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
---
drivers/pci/controller/pcie-iproc.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
index d901b9d392b8..cc5b7823edeb 100644
--- a/drivers/pci/controller/pcie-iproc.c
+++ b/drivers/pci/controller/pcie-iproc.c
@@ -192,8 +192,15 @@ static const struct iproc_pcie_ib_map paxb_v2_ib_map[] = {
.imap_window_offset = 0x4,
},
{
- /* IARR1/IMAP1 (currently unused) */
- .type = IPROC_PCIE_IB_MAP_INVALID,
+ /* IARR1/IMAP1 */
+ .type = IPROC_PCIE_IB_MAP_MEM,
+ .size_unit = SZ_1M,
+ .region_sizes = { 8 },
+ .nr_sizes = 1,
+ .nr_windows = 8,
+ .imap_addr_offset = 0x4,
+ .imap_window_offset = 0x8,
+
},
{
/* IARR2/IMAP2 */
@@ -351,6 +358,8 @@ static const u16 iproc_pcie_reg_paxb_v2[IPROC_PCIE_MAX_NUM_REG] = {
[IPROC_PCIE_OMAP3] = 0xdf8,
[IPROC_PCIE_IARR0] = 0xd00,
[IPROC_PCIE_IMAP0] = 0xc00,
+ [IPROC_PCIE_IARR1] = 0xd08,
+ [IPROC_PCIE_IMAP1] = 0xd70,
[IPROC_PCIE_IARR2] = 0xd10,
[IPROC_PCIE_IMAP2] = 0xcc0,
[IPROC_PCIE_IARR3] = 0xe00,
--
2.17.1
next prev parent reply other threads:[~2020-09-15 14:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 13:45 [PATCH v2 0/3] PCI: iproc: Add fixes to pcie iproc Srinath Mannam
2020-09-15 13:45 ` [PATCH v2 1/3] PCI: iproc: fix out of bound array access Srinath Mannam
2020-09-15 13:45 ` Srinath Mannam [this message]
2020-09-15 13:45 ` [PATCH v2 3/3] PCI: iproc: Display PCIe Link information Srinath Mannam
2020-09-17 1:52 ` Rob Herring
2020-09-17 3:12 ` Srinath Mannam
2020-09-16 22:08 ` [PATCH v2 0/3] PCI: iproc: Add fixes to pcie iproc Bjorn Helgaas
2020-09-17 2:44 ` Srinath Mannam
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