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ipq807x: Add PCIE reset sequence

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Some cards are not working due to pcie reset.
So doing pcie reset with pcie reset gpio.

Change-Id: I0c631b116923b90bf94223d09e5662900a31244e
Signed-off-by: Sham Muthayyan <smuthayy@codeaurora.org>
This commit is contained in:
Sham Muthayyan 2018-07-17 12:36:52 +05:30
parent af7feada2e
commit 4c38761167
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/pci_ipq.c
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@ -483,6 +483,8 @@ void pcie_linkup(struct ipq_pcie *pcie)
writel(LTSSM_EN, pcie->parf.start + PCIE_0_PCIE20_PARF_LTSSM);
if (pcie->version == PCIE_V2)
gpio_set_value(pcie->rst_gpio, GPIO_OUT_HIGH);
mdelay(200);
for (j = 0; j < 400; j++) {
@ -822,6 +824,7 @@ static int pci_ipq_ofdata_to_platdata(int id, struct ipq_pcie *pcie)
pcie_linkup(pcie);
break;
case PCIE_V2:
gpio_set_value(pcie->rst_gpio, GPIO_OUT_LOW);
pcie_phy_init(pcie);
pcie_linkup(pcie);
break;