From 193a1e9f196b7fb7e913a70936c8a49060a1859c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Beh=C3=BAn?= Date: Wed, 7 Aug 2019 15:01:56 +0200 Subject: [PATCH] pci: pci_mvebu: set BAR0 after memory space is set MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Cc: Stefan Roese Cc: Dirk Eibach Cc: Mario Six Cc: Chris Packham Cc: Phil Sutter Cc: VlaoMao Tested-by: Chris Packham Reviewed-by: Stefan Roese Signed-off-by: Stefan Roese --- drivers/pci/pci_mvebu.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c index e21dc10..f9b08f3 100644 --- a/drivers/pci/pci_mvebu.c +++ b/drivers/pci/pci_mvebu.c @@ -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; -- 2.7.4