From: Atish Patra <atish.patra@wdc.com>
To: "paul.walmsley@sifive.com" <paul.walmsley@sifive.com>,
"Palmer Dabbelt" <palmer@sifive.com>,
"Björn Töpel" <bjorn.topel@gmail.com>
Cc: "linux-riscv@lists.infradead.org" <linux-riscv@lists.infradead.org>
Subject: 5.2-rc1 boot on Unleashed
Date: Mon, 20 May 2019 16:31:13 -0700 [thread overview]
Message-ID: <5c1ffb76-b18a-dbae-d3ad-f3d2cd41ee44@wdc.com> (raw)
Hi,
5.2-rc1 still requires some out-of-tree driver patches.
Here is my tree (successfully tested on Unleashed.)
https://github.com/atishp04/linux/tree/5.2-rc1_unleashed
Issues:
1. Thanks to Paul, uart & clock drivers are merged. However,
a. upstream clock drivers require DT changes
b. Those DT changes are still being reviewed.
c. FSBL need to be rebuild & updated for these DT changes.
That's why I am still using the old out-of-tree clock drivers for now.
@Paul, @Palmer: Can SiFive share the updated FSBL binary so that
everybody can use the upstream clock drivers without having to rebuild
FSBL by hand?
2. We still need the following networking hack. I had to rebase the
patch on top of 5.2-rc1.
-----------------------------------------------------------------
commit 1cae94e4f38f (HEAD -> 5.2-rc1_unleashed, atishp04/5.2-rc1_unleashed)
Author: Atish Patra <atish.patra@wdc.com>
Date: Fri Sep 7 10:22:27 2018 -0700
RISC-V: Networking fix Hack
It looks like that kernel driver now supports reseting the
signal one additional time. As it had been already reset
twice in FSBL, PHY gets into incorrect state causing below error.
----------------------------------------------------------------------
macb 10090000.ethernet (unnamed net_device) (uninitialized): Could
not attach to PHY
macb: probe of 10090000.ethernet failed with error -110
----------------------------------------------------------------------
This patch is just a temporary fix until we have a fix a FSBL.
It is just a **HACK** and **NOT TO BE MERGED** into mainline.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index bd04fe762056..4b99b226c885 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -94,9 +94,6 @@ int mdiobus_register_device(struct mdio_device *mdiodev)
err = mdiobus_register_reset(mdiodev);
if (err)
return err;
-
- /* Assert the reset signal */
- mdio_device_reset(mdiodev, 1);
}
mdiodev->bus->mdio_map[mdiodev->addr] = mdiodev;
-----------------------------------------------------------------
Can somebody please look into this so that we can avoid this ugly hack ?
--
Regards,
Atish
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next reply other threads:[~2019-05-20 23:33 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-20 23:31 Atish Patra [this message]
2019-05-21 9:40 ` 5.2-rc1 boot on Unleashed Andreas Schwab
2019-05-21 18:14 ` Atish Patra
2019-05-22 7:31 ` Andreas Schwab
2019-05-22 8:40 ` Andreas Schwab
2019-05-22 9:58 ` Andreas Schwab
2019-05-22 21:13 ` Paul Walmsley
2019-05-21 17:47 ` Kevin Hilman
2019-05-21 18:18 ` Atish Patra
2019-05-23 9:42 ` Andreas Schwab
2019-05-22 4:42 ` Sagar Kadam
2019-05-22 9:51 ` Atish Patra
2019-05-22 16:42 ` Paul Walmsley
2019-05-22 17:38 ` Atish Patra
2019-05-22 20:43 ` Paul Walmsley
2019-05-22 22:14 ` Troy Benjegerdes
2019-05-25 8:06 ` Anup Patel
2019-05-25 14:16 ` Troy Benjegerdes
2019-05-29 5:00 ` Anup Patel
2019-05-29 8:31 ` Andreas Schwab
2019-05-29 17:38 ` Troy Benjegerdes
2019-05-29 18:59 ` Karsten Merker
2019-05-30 17:00 ` Palmer Dabbelt
2019-06-03 10:49 ` Andreas Schwab
2019-06-03 14:44 ` Distro bootcmd: " Troy Benjegerdes
2019-06-03 17:02 ` [U-Boot] " Tom Rini
2019-06-03 19:17 ` Palmer Dabbelt
2019-06-03 19:32 ` Tom Rini
2019-06-03 19:47 ` Troy Benjegerdes
2019-05-24 0:23 ` Troy Benjegerdes
2019-05-24 3:59 ` Atish Patra
2019-05-24 14:46 ` Troy Benjegerdes
2019-05-24 15:35 ` Auer, Lukas
2019-05-24 16:01 ` Troy Benjegerdes
2019-05-24 17:40 ` Atish Patra
[not found] ` <CAF5mof3_PSwpsSMnjMALpfvmOPdeAgDLa2p6jp4y+Hmas83mbw@mail.gmail.com>
2019-05-24 21:34 ` Auer, Lukas
2019-05-25 3:49 ` Anup Patel
2019-05-25 16:23 ` Troy Benjegerdes
2019-05-25 18:09 ` Paul Walmsley
2019-05-25 18:40 ` Troy Benjegerdes
2019-05-27 12:21 ` Andreas Schwab
2019-05-27 16:51 ` Troy Benjegerdes
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