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openwrt_mitrastar/target/linux/qualcommbe/patches-6.12/0340-net-ethernet-qualcomm-Add-PPE-port-MAC-address-and-E.patch
Alexandru Gagniuc f3fc278fcb qualcommbe: v6.12: add PPE driver (part 2) 
Add the second part of the PPE driver. This includes the EDMA and
network device support. This part does not appear to have been
officially submitted for upstream review. The series is taken from
target/linux/qualcommbe/patches-6.6, and had to be heavily modified
in order to compile of v6.12. Changes to patches are noted in the
respective patch body.

Also add the PPE and EDMA nodes in this series.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18796
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-05-31 12:25:48 +02:00

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From 55fbbc8ef90df27a16bca1613a793a578b79a384 Mon Sep 17 00:00:00 2001
From: Lei Wei <quic_leiwei@quicinc.com>
Date: Fri, 1 Mar 2024 13:36:26 +0800
Subject: [PATCH] net: ethernet: qualcomm: Add PPE port MAC address and EEE
functions
Add PPE port MAC address set and EEE set API functions which
will be used by netdev ops and ethtool.
Change-Id: Id2b3b06ae940b3b6f5227d927316329cdf3caeaa
Signed-off-by: Lei Wei <quic_leiwei@quicinc.com>
Alex G: use struct ethtool_keee instead of ethtool_eee
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
---
drivers/net/ethernet/qualcomm/ppe/ppe_port.c | 75 ++++++++++++++++++++
drivers/net/ethernet/qualcomm/ppe/ppe_port.h | 3 +
drivers/net/ethernet/qualcomm/ppe/ppe_regs.h | 29 ++++++++
3 files changed, 107 insertions(+)
--- a/drivers/net/ethernet/qualcomm/ppe/ppe_port.c
+++ b/drivers/net/ethernet/qualcomm/ppe/ppe_port.c
@@ -462,6 +462,81 @@ void ppe_port_get_stats64(struct ppe_por
}
}
+/**
+ * ppe_port_set_mac_address() - Set PPE port MAC address
+ * @ppe_port: PPE port
+ * @addr: MAC address
+ *
+ * Description: Set MAC address for the given PPE port.
+ *
+ * Return: 0 upon success or a negative error upon failure.
+ */
+int ppe_port_set_mac_address(struct ppe_port *ppe_port, const u8 *addr)
+{
+ struct ppe_device *ppe_dev = ppe_port->ppe_dev;
+ int port = ppe_port->port_id;
+ u32 reg, val;
+ int ret;
+
+ if (ppe_port->mac_type == PPE_MAC_TYPE_GMAC) {
+ reg = PPE_PORT_GMAC_ADDR(port);
+ val = (addr[5] << 8) | addr[4];
+ ret = regmap_write(ppe_dev->regmap, reg + GMAC_GOL_ADDR0_ADDR, val);
+ if (ret)
+ return ret;
+
+ val = (addr[0] << 24) | (addr[1] << 16) |
+ (addr[2] << 8) | addr[3];
+ ret = regmap_write(ppe_dev->regmap, reg + GMAC_GOL_ADDR1_ADDR, val);
+ if (ret)
+ return ret;
+ } else {
+ reg = PPE_PORT_XGMAC_ADDR(port);
+ val = (addr[5] << 8) | addr[4] | XGMAC_ADDR_EN;
+ ret = regmap_write(ppe_dev->regmap, reg + XGMAC_ADDR0_H_ADDR, val);
+ if (ret)
+ return ret;
+
+ val = (addr[3] << 24) | (addr[2] << 16) |
+ (addr[1] << 8) | addr[0];
+ ret = regmap_write(ppe_dev->regmap, reg + XGMAC_ADDR0_L_ADDR, val);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * ppe_port_set_mac_eee() - Set EEE configuration for PPE port MAC
+ * @ppe_port: PPE port
+ * @eee: EEE settings
+ *
+ * Description: Set port MAC EEE settings for the given PPE port.
+ *
+ * Return: 0 upon success or a negative error upon failure.
+ */
+int ppe_port_set_mac_eee(struct ppe_port *ppe_port, struct ethtool_keee *eee)
+{
+ struct ppe_device *ppe_dev = ppe_port->ppe_dev;
+ int port = ppe_port->port_id;
+ u32 val;
+ int ret;
+
+ ret = regmap_read(ppe_dev->regmap, PPE_LPI_EN_ADDR, &val);
+ if (ret)
+ return ret;
+
+ if (eee->tx_lpi_enabled)
+ val |= PPE_LPI_PORT_EN(port);
+ else
+ val &= ~PPE_LPI_PORT_EN(port);
+
+ ret = regmap_write(ppe_dev->regmap, PPE_LPI_EN_ADDR, val);
+
+ return ret;
+}
+
/* PPE port and MAC reset */
static int ppe_port_mac_reset(struct ppe_port *ppe_port)
{
--- a/drivers/net/ethernet/qualcomm/ppe/ppe_port.h
+++ b/drivers/net/ethernet/qualcomm/ppe/ppe_port.h
@@ -8,6 +8,7 @@
#include <linux/phylink.h>
+struct ethtool_keee;
struct rtnl_link_stats64;
/**
@@ -86,4 +87,6 @@ void ppe_port_get_strings(struct ppe_por
void ppe_port_get_ethtool_stats(struct ppe_port *ppe_port, u64 *data);
void ppe_port_get_stats64(struct ppe_port *ppe_port,
struct rtnl_link_stats64 *s);
+int ppe_port_set_mac_address(struct ppe_port *ppe_port, const u8 *addr);
+int ppe_port_set_mac_eee(struct ppe_port *ppe_port, struct ethtool_keee *eee);
#endif
--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
@@ -20,6 +20,16 @@
#define PPE_PORT5_SEL_PCS1 BIT(4)
#define PPE_PORT_SEL_XGMAC(x) (BIT(8) << ((x) - 1))
+/* PPE port LPI enable register */
+#define PPE_LPI_EN_ADDR 0x400
+#define PPE_LPI_PORT1_EN BIT(0)
+#define PPE_LPI_PORT2_EN BIT(1)
+#define PPE_LPI_PORT3_EN BIT(2)
+#define PPE_LPI_PORT4_EN BIT(3)
+#define PPE_LPI_PORT5_EN BIT(4)
+#define PPE_LPI_PORT6_EN BIT(5)
+#define PPE_LPI_PORT_EN(x) (BIT(0) << ((x) - 1))
+
/* PPE scheduler configurations for buffer manager block. */
#define PPE_BM_SCH_CTRL_ADDR 0xb000
#define PPE_BM_SCH_CTRL_INC 4
@@ -592,6 +602,17 @@
#define GMAC_SPEED_100 1
#define GMAC_SPEED_1000 2
+/* GMAC MAC address register */
+#define GMAC_GOL_ADDR0_ADDR 0x8
+#define GMAC_ADDR_BYTE5 GENMASK(15, 8)
+#define GMAC_ADDR_BYTE4 GENMASK(7, 0)
+
+#define GMAC_GOL_ADDR1_ADDR 0xC
+#define GMAC_ADDR_BYTE0 GENMASK(31, 24)
+#define GMAC_ADDR_BYTE1 GENMASK(23, 16)
+#define GMAC_ADDR_BYTE2 GENMASK(15, 8)
+#define GMAC_ADDR_BYTE3 GENMASK(7, 0)
+
/* GMAC control register */
#define GMAC_CTRL_ADDR 0x18
#define GMAC_TX_THD_M GENMASK(27, 24)
@@ -717,6 +738,14 @@
#define XGMAC_RX_FLOW_CTRL_ADDR 0x90
#define XGMAC_RXFCEN BIT(0)
+/* XGMAC MAC address register */
+#define XGMAC_ADDR0_H_ADDR 0x300
+#define XGMAC_ADDR_EN BIT(31)
+#define XGMAC_ADDRH GENMASK(15, 0)
+
+#define XGMAC_ADDR0_L_ADDR 0x304
+#define XGMAC_ADDRL GENMASK(31, 0)
+
/* XGMAC management counters control register */
#define XGMAC_MMC_CTRL_ADDR 0x800
#define XGMAC_MCF BIT(3)
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