[U-Boot] [PATCH] pci: mx6: Implement reset callback

[Marek Vasut]

Add a callback so that a board can implement it's own specific routine to
toggle the port's nRESET line.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Stefano Babic <sbabic at denx.de>
---
 drivers/pci/pcie_imx.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pcie_imx.c b/drivers/pci/pcie_imx.c
index 0a74867..b554075 100644
--- a/drivers/pci/pcie_imx.c
+++ b/drivers/pci/pcie_imx.c
@@ -450,6 +450,13 @@ static int imx6_pcie_init_phy(void)
 	return 0;
 }
 
+__weak int imx6_pcie_toggle_reset(void)
+{
+	/* This function ought to be overridden ! */
+	puts("WARNING: Make sure the PCIe nRESET line is connected!\n");
+	return 0;
+}
+
 static int imx6_pcie_deassert_core_reset(void)
 {
 	struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
@@ -466,10 +473,9 @@ static int imx6_pcie_deassert_core_reset(void)
 	 * Wait for the clock to settle a bit, when the clock are sourced
 	 * from the CPU, we need about 30mS to settle.
 	 */
-	mdelay(30);
+	mdelay(50);
 
-	/* FIXME: GPIO reset goes here */
-	mdelay(100);
+	imx6_pcie_toggle_reset();
 
 	return 0;
 }
-- 
1.8.4.2