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PCI: keystone: Fix outbound region mapping 

The Keystone outbound Address Translation Unit (ATU) maps PCI MMIO space in
8 MB windows.  When programming the ATU windows, we previously incremented
the starting address by 8, not 8 MB, so all the windows were mapped to the
first 8 MB.  Therefore, only 8 MB of MMIO space was accessible.

Update the loop so it increments the starting address by 8 MB, not 8, so
more MMIO space is accessible.

Fixes: e75043ad97 ("PCI: keystone: Cleanup outbound window configuration")
Link: https://lore.kernel.org/r/20191004154811.GA31397@monakov-y.office.kontur-niirs.ru
Signed-off-by: Yurii Monakov <monakov.y@gmail.com>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Andrew Murray <andrew.murray@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: stable@vger.kernel.org	# v4.20+
This commit is contained in:
Yurii Monakov 2019-10-04 18:48:11 +03:00 committed by Lorenzo Pieralisi
parent 6df19872d8
commit 2d0c3fbe43
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/controller/dwc/pci-keystone.c
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@ -422,7 +422,7 @@ static void ks_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie)
lower_32_bits(start) | OB_ENABLEN);
ks_pcie_app_writel(ks_pcie, OB_OFFSET_HI(i),
upper_32_bits(start));
start += OB_WIN_SIZE;
start += OB_WIN_SIZE * SZ_1M;
}
val = ks_pcie_app_readl(ks_pcie, CMD_STATUS);