1 From 9e1f89c4c637087dc8dc1a3f9f6bda5bff66e4ac Mon Sep 17 00:00:00 2001
2 From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
3 Date: Tue, 6 Feb 2018 14:40:32 +0200
4 Subject: [PATCH] dpaa_eth: defer probing after qbman
6 Enabling SMMU altered the order of device probing causing the dpaa1
7 ethernet driver to get probed before qbman and causing a boot crash.
8 Add predictability in the probing order by deferring the ethernet
9 driver probe after qbman and portals by using the recently introduced
12 Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
13 Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
15 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 31 ++++++++++++++++++++++++++
16 1 file changed, 31 insertions(+)
18 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
19 +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
20 @@ -2947,6 +2947,37 @@ static int dpaa_eth_probe(struct platfor
21 int err = 0, i, channel;
24 + err = bman_is_probed();
26 + return -EPROBE_DEFER;
28 + dev_err(&pdev->dev, "failing probe due to bman probe error\n");
31 + err = qman_is_probed();
33 + return -EPROBE_DEFER;
35 + dev_err(&pdev->dev, "failing probe due to qman probe error\n");
38 + err = bman_portals_probed();
40 + return -EPROBE_DEFER;
43 + "failing probe due to bman portals probe error\n");
46 + err = qman_portals_probed();
48 + return -EPROBE_DEFER;
51 + "failing probe due to qman portals probe error\n");
55 /* device used for DMA mapping */
56 dev = pdev->dev.parent;
57 err = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(40));