From: Stephan Gatzka <stephan.gatzka@gmail.com>
To: peppe.cavallaro@st.com, alexandre.torgue@st.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Stephan Gatzka <stephan.gatzka@gmail.com>
Subject: [PATCH] net: stmmac: socfgpa: Ensure emac bit set in sys manager for MII/GMII/SGMII.
Date: Fri, 18 Aug 2017 08:55:14 +0200 [thread overview]
Message-ID: <1503039314-575-1-git-send-email-stephan.gatzka@gmail.com> (raw)
When using MII/GMII/SGMII in the Altera SoC, the phy needs to be
wired through the FPGA. To ensure correct behavior, the appropriate
bit in the System Manager FPGA Interface Group register needs to be
set.
Signed-off-by: Stephan Gatzka <stephan.gatzka@gmail.com>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 17d4bba..d7c231b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -269,7 +269,10 @@ static int socfpga_dwmac_set_phy_mode(struct socfpga_dwmac *dwmac)
ctrl &= ~(SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << reg_shift);
ctrl |= val << reg_shift;
- if (dwmac->f2h_ptp_ref_clk) {
+ if ((dwmac->f2h_ptp_ref_clk) ||
+ (phymode == PHY_INTERFACE_MODE_MII) ||
+ (phymode == PHY_INTERFACE_MODE_GMII) ||
+ (phymode == PHY_INTERFACE_MODE_SGMII)) {
ctrl |= SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2);
regmap_read(sys_mgr_base_addr, SYSMGR_FPGAGRP_MODULE_REG,
&module);
--
2.7.4
next reply other threads:[~2017-08-18 6:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-18 6:55 Stephan Gatzka [this message]
2017-08-18 9:58 ` [PATCH] net: stmmac: socfgpa: Ensure emac bit set in sys manager for MII/GMII/SGMII Sergei Shtylyov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1503039314-575-1-git-send-email-stephan.gatzka@gmail.com \
--to=stephan.gatzka@gmail.com \
--cc=alexandre.torgue@st.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=peppe.cavallaro@st.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).