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Message-ID: <20241104170251.2202270-3-maxime.chevallier@bootlin.com>
Date: Mon, 4 Nov 2024 18:02:42 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
davem@...emloft.net,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Richard Cochran <richardcochran@...il.com>
Cc: Maxime Chevallier <maxime.chevallier@...tlin.com>,
Alexis Lothoré <alexis.lothore@...tlin.com>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
netdev@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 2/9] net: stmmac: Use per-hw ptp clock ops
The auxiliary snapshot configuration was found to differ depending on
the dwmac version. To prepare supporting this, allow specifying the
ptp_clock_info ops in the hwif array
Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
---
V2: No changes
drivers/net/ethernet/stmicro/stmmac/common.h | 2 ++
drivers/net/ethernet/stmicro/stmmac/hwif.c | 11 +++++++++++
drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c | 4 +---
3 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 684489156dce..4a0a1708c391 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -551,6 +551,8 @@ struct mac_device_info;
extern const struct stmmac_hwtimestamp stmmac_ptp;
extern const struct stmmac_mode_ops dwmac4_ring_mode_ops;
+extern const struct ptp_clock_info stmmac_ptp_clock_ops;
+
struct mac_link {
u32 caps;
u32 speed_mask;
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.c b/drivers/net/ethernet/stmicro/stmmac/hwif.c
index 88cce28b2f98..9b6d817e8f1e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.c
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.c
@@ -112,6 +112,7 @@ static const struct stmmac_hwif_entry {
const void *dma;
const void *mac;
const void *hwtimestamp;
+ const void *ptp;
const void *mode;
const void *tc;
const void *mmc;
@@ -133,6 +134,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwmac100_dma_ops,
.mac = &dwmac100_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = NULL,
.tc = NULL,
.mmc = &dwmac_mmc_ops,
@@ -151,6 +153,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwmac1000_dma_ops,
.mac = &dwmac1000_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = NULL,
.tc = NULL,
.mmc = &dwmac_mmc_ops,
@@ -170,6 +173,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwmac4_dma_ops,
.mac = &dwmac4_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = NULL,
.tc = &dwmac4_tc_ops,
.mmc = &dwmac_mmc_ops,
@@ -190,6 +194,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwmac4_dma_ops,
.mac = &dwmac410_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = &dwmac4_ring_mode_ops,
.tc = &dwmac510_tc_ops,
.mmc = &dwmac_mmc_ops,
@@ -210,6 +215,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwmac410_dma_ops,
.mac = &dwmac410_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = &dwmac4_ring_mode_ops,
.tc = &dwmac510_tc_ops,
.mmc = &dwmac_mmc_ops,
@@ -230,6 +236,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwmac410_dma_ops,
.mac = &dwmac510_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = &dwmac4_ring_mode_ops,
.tc = &dwmac510_tc_ops,
.mmc = &dwmac_mmc_ops,
@@ -251,6 +258,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwxgmac210_dma_ops,
.mac = &dwxgmac210_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = NULL,
.tc = &dwxgmac_tc_ops,
.mmc = &dwxgmac_mmc_ops,
@@ -272,6 +280,7 @@ static const struct stmmac_hwif_entry {
.dma = &dwxgmac210_dma_ops,
.mac = &dwxlgmac2_ops,
.hwtimestamp = &stmmac_ptp,
+ .ptp = &stmmac_ptp_clock_ops,
.mode = NULL,
.tc = &dwxgmac_tc_ops,
.mmc = &dwxgmac_mmc_ops,
@@ -355,6 +364,8 @@ int stmmac_hwif_init(struct stmmac_priv *priv)
priv->hw = mac;
priv->ptpaddr = priv->ioaddr + entry->regs.ptp_off;
priv->mmcaddr = priv->ioaddr + entry->regs.mmc_off;
+ memcpy(&priv->ptp_clock_ops, entry->ptp,
+ sizeof(struct ptp_clock_info));
if (entry->est)
priv->estaddr = priv->ioaddr + entry->regs.est_off;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
index 11ab1d6b916a..41581f516ea9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
@@ -265,7 +265,7 @@ static int stmmac_getcrosststamp(struct ptp_clock_info *ptp,
}
/* structure describing a PTP hardware clock */
-static struct ptp_clock_info stmmac_ptp_clock_ops = {
+const struct ptp_clock_info stmmac_ptp_clock_ops = {
.owner = THIS_MODULE,
.name = "stmmac ptp",
.max_adj = 62500000,
@@ -303,8 +303,6 @@ void stmmac_ptp_register(struct stmmac_priv *priv)
if (priv->plat->has_gmac4 && priv->plat->clk_ptp_rate)
priv->plat->cdc_error_adj = (2 * NSEC_PER_SEC) / priv->plat->clk_ptp_rate;
- priv->ptp_clock_ops = stmmac_ptp_clock_ops;
-
priv->ptp_clock_ops.n_per_out = priv->dma_cap.pps_out_num;
priv->ptp_clock_ops.n_ext_ts = priv->dma_cap.aux_snapshot_n;
--
2.47.0
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