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Message-ID: <20240610071459.287500-9-christophe.roullier@foss.st.com>
Date: Mon, 10 Jun 2024 09:14:59 +0200
From: Christophe Roullier <christophe.roullier@...s.st.com>
To: "David S . Miller" <davem@...emloft.net>,
Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni
<pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski
<krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue
<alexandre.torgue@...s.st.com>,
Richard Cochran <richardcochran@...il.com>,
Jose Abreu <joabreu@...opsys.com>, Liam Girdwood <lgirdwood@...il.com>,
Mark
Brown <broonie@...nel.org>,
Christophe Roullier
<christophe.roullier@...s.st.com>,
Marek Vasut <marex@...x.de>
CC: <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [net-next,PATCH v6 8/8] net: stmmac: dwmac-stm32: add management of stm32mp13 for stm32
Add Ethernet support for STM32MP13.
STM32MP13 is STM32 SOC with 2 GMACs instances.
GMAC IP version is SNPS 4.20.
GMAC IP configure with 1 RX and 1 TX queue.
DMA HW capability register supported
RX Checksum Offload Engine supported
TX Checksum insertion supported
Wake-Up On Lan supported
TSO supported
Signed-off-by: Christophe Roullier <christophe.roullier@...s.st.com>
---
.../net/ethernet/stmicro/stmmac/dwmac-stm32.c | 24 +++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
index 09ff0be0bdcdc..b8b3e04ca3ec8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
@@ -104,6 +104,7 @@ struct stm32_ops {
int (*parse_data)(struct stm32_dwmac *dwmac,
struct device *dev);
bool clk_rx_enable_in_suspend;
+ bool is_mp13;
u32 syscfg_clr_off;
};
@@ -224,11 +225,18 @@ static int stm32mp1_configure_pmcr(struct plat_stmmacenet_data *plat_dat)
{
struct stm32_dwmac *dwmac = plat_dat->bsp_priv;
u32 reg = dwmac->mode_reg;
- int val;
+ int val = 0;
switch (plat_dat->mac_interface) {
case PHY_INTERFACE_MODE_MII:
- val = SYSCFG_PMCR_ETH_SEL_MII;
+ /*
+ * STM32MP15xx supports both MII and GMII, STM32MP13xx MII only.
+ * SYSCFG_PMCSETR ETH_SELMII is present only on STM32MP15xx and
+ * acts as a selector between 0:GMII and 1:MII. As STM32MP13xx
+ * supports only MII, ETH_SELMII is not present.
+ */
+ if (!dwmac->ops->is_mp13) /* Select MII mode on STM32MP15xx */
+ val |= SYSCFG_PMCR_ETH_SEL_MII;
break;
case PHY_INTERFACE_MODE_GMII:
val = SYSCFG_PMCR_ETH_SEL_GMII;
@@ -560,12 +568,24 @@ static struct stm32_ops stm32mp1_dwmac_data = {
.resume = stm32mp1_resume,
.parse_data = stm32mp1_parse_data,
.syscfg_clr_off = 0x44,
+ .is_mp13 = false,
+ .clk_rx_enable_in_suspend = true
+};
+
+static struct stm32_ops stm32mp13_dwmac_data = {
+ .set_mode = stm32mp1_set_mode,
+ .suspend = stm32mp1_suspend,
+ .resume = stm32mp1_resume,
+ .parse_data = stm32mp1_parse_data,
+ .syscfg_clr_off = 0x08,
+ .is_mp13 = true,
.clk_rx_enable_in_suspend = true
};
static const struct of_device_id stm32_dwmac_match[] = {
{ .compatible = "st,stm32-dwmac", .data = &stm32mcu_dwmac_data},
{ .compatible = "st,stm32mp1-dwmac", .data = &stm32mp1_dwmac_data},
+ { .compatible = "st,stm32mp13-dwmac", .data = &stm32mp13_dwmac_data},
{ }
};
MODULE_DEVICE_TABLE(of, stm32_dwmac_match);
--
2.25.1
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