[PATCH 6/8] pci: pci_mvebu: Do not automatically enable bus mastering on PCI Bridge

Pali Rohár
2021-10-22T14:23:55Z

Now that PCI Bridge is working, U-Boot's CONFIG_PCI_PNP code automatically
enables memory access and bus mastering when it is needed. So do not
prematurely enable memory access and bus mastering.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
---
drivers/pci/pci_mvebu.c | 8 --------
1 file changed, 8 deletions(-)

diff --git a/drivers/pci/pci_mvebu.c b/drivers/pci/pci_mvebu.c
index 40b8a57bbe1e..e43fa12d3819 100644
--- a/drivers/pci/pci_mvebu.c
+++ b/drivers/pci/pci_mvebu.c
@@ -451,14 +451,6 @@ static int mvebu_pcie_probe(struct udevice *dev)
/* Setup windows and configure host bridge */
mvebu_pcie_setup_wins(pcie);

- /* Master + slave enable. */
- reg = readl(pcie->base + PCIE_CMD_OFF);
- reg |= PCI_COMMAND_MEMORY;
- reg |= PCI_COMMAND_IO;
- reg |= PCI_COMMAND_MASTER;
- reg |= BIT(10); /* disable interrupts */
- writel(reg, pcie->base + PCIE_CMD_OFF);
-
/* PCI memory space */
pci_set_region(hose->regions + 0, pcie->mem.start,
pcie->mem.start, PCIE_MEM_SIZE, PCI_REGION_MEM);
--
2.20.1