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pci: pci_mvebu: set BAR0 after memory space is set

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The non-DM version of this driver used to set BAR0 register after the
calls to pci_set_region.
I found out that for some strange reason the ath10k driver in kernel
fails to work if this is done the other way around.
I know that Linux's driver should not depend on how U-Boot does things,
but for some strange reason it does and this seems to be the simplest
solution. Fix it since it caused regressions on Omnia.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Stefan Roese <sr@denx.de>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Mario Six <mario.six@gdsys.cc>
Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: Phil Sutter <phil@nwl.cc>
Cc: VlaoMao <vlaomao@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Behún 2019-08-07 15:01:56 +02:00 committed by Stefan Roese
parent 6de5a717c7
commit 193a1e9f19
1 changed files with 4 additions and 4 deletions
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8
drivers/pci/pci_mvebu.c
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@ -313,10 +313,6 @@ static int mvebu_pcie_probe(struct udevice *dev)
reg |= BIT(10); /* disable interrupts */
writel(reg, pcie->base + PCIE_CMD_OFF);
/* Set BAR0 to internal registers */
writel(SOC_REGS_PHY_BASE, pcie->base + PCIE_BAR_LO_OFF(0));
writel(0, pcie->base + PCIE_BAR_HI_OFF(0));
/* PCI memory space */
pci_set_region(hose->regions + 0, pcie->mem.start,
pcie->mem.start, PCIE_MEM_SIZE, PCI_REGION_MEM);
@ -326,6 +322,10 @@ static int mvebu_pcie_probe(struct udevice *dev)
PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
hose->region_count = 2;
/* Set BAR0 to internal registers */
writel(SOC_REGS_PHY_BASE, pcie->base + PCIE_BAR_LO_OFF(0));
writel(0, pcie->base + PCIE_BAR_HI_OFF(0));
bus++;
return 0;