Commit 6f3ab451 authored Jul 05, 2019 by Hou Zhiqiang Committed by Lorenzo Pieralisi Jul 08, 2019

PCI: mobiveil: Initialize Primary/Secondary/Subordinate bus numbers



The reset value of Primary, Secondary and Subordinate bus numbers is
zero which is a broken setup.

Program a sensible default value for Primary/Secondary/Subordinate
bus numbers.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>

parent 284441a9

drivers/pci/controller/pcie-mobiveil.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -561,6 +561,12 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie)
		u32 value, pab_ctrl, type = 0;
		struct resource_entry *win;

		/* setup bus numbers */
		value = csr_readl(pcie, PCI_PRIMARY_BUS);
		value &= 0xff000000;
		value \|= 0x00ff0100;
		csr_writel(pcie, value, PCI_PRIMARY_BUS);

		/*
		* program Bus Master Enable Bit in Command Register in PAB Config
		* Space

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