[U-Boot] [PATCH 0/3] Add network support for Luton SoCs

[U-Boot] [PATCH 0/3] Add network support for Luton SoCs

[Horatiu Vultur]

This series adds network support for Luton SoCs. Currently
there is not support for Luton SoCs in Linux.

Horatiu Vultur (3):
  MIPS: mscc: luton: Add ethernet nodes for Luton.
  net: add MSCC Luton switch support
  configs: mscc_luton: add network support.

 MAINTAINERS                    |   1 +
 arch/mips/dts/luton_pcb090.dts |  51 +++
 arch/mips/dts/luton_pcb091.dts |  51 +++
 arch/mips/dts/mscc,luton.dtsi  | 165 +++++++
 configs/mscc_luton_defconfig   |   1 +
 drivers/net/Kconfig            |   7 +
 drivers/net/Makefile           |   1 +
 drivers/net/luton_switch.c     | 972 +++++++++++++++++++++++++++++++++++++++++
 8 files changed, 1249 insertions(+)
 create mode 100644 drivers/net/luton_switch.c

-- 
2.7.4

[U-Boot] [PATCH 1/3] MIPS: mscc: luton: Add ethernet nodes for Luton.

[Horatiu Vultur]

Add nodes for pcb090 and pcb091. There is currently no support
in Linux for this SoC.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
 arch/mips/dts/luton_pcb090.dts |  51 +++++++++++++
 arch/mips/dts/luton_pcb091.dts |  51 +++++++++++++
 arch/mips/dts/mscc,luton.dtsi  | 165 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 267 insertions(+)

diff --git a/arch/mips/dts/luton_pcb090.dts b/arch/mips/dts/luton_pcb090.dts
index 951d8da..315172b 100644
--- a/arch/mips/dts/luton_pcb090.dts
+++ b/arch/mips/dts/luton_pcb090.dts
@@ -55,3 +55,54 @@
 	};
 };
 
+&mdio0 {
+	status = "okay";
+};
+
+&port0 {
+	phy-handle = <&phy0>;
+};
+
+&port1 {
+	phy-handle = <&phy1>;
+};
+
+&port2 {
+	phy-handle = <&phy2>;
+};
+
+&port3 {
+	phy-handle = <&phy3>;
+};
+
+&port4 {
+	phy-handle = <&phy4>;
+};
+
+&port5 {
+	phy-handle = <&phy5>;
+};
+
+&port6 {
+	phy-handle = <&phy6>;
+};
+
+&port7 {
+	phy-handle = <&phy7>;
+};
+
+&port8 {
+	phy-handle = <&phy8>;
+};
+
+&port9 {
+	phy-handle = <&phy9>;
+};
+
+&port10 {
+	phy-handle = <&phy10>;
+};
+
+&port11 {
+	phy-handle = <&phy11>;
+};
diff --git a/arch/mips/dts/luton_pcb091.dts b/arch/mips/dts/luton_pcb091.dts
index bf638b2..9b4d628 100644
--- a/arch/mips/dts/luton_pcb091.dts
+++ b/arch/mips/dts/luton_pcb091.dts
@@ -61,3 +61,54 @@
 	};
 };
 
+&mdio0 {
+	status = "okay";
+};
+
+&port0 {
+	phy-handle = <&phy0>;
+};
+
+&port1 {
+	phy-handle = <&phy1>;
+};
+
+&port2 {
+	phy-handle = <&phy2>;
+};
+
+&port3 {
+	phy-handle = <&phy3>;
+};
+
+&port4 {
+	phy-handle = <&phy4>;
+};
+
+&port5 {
+	phy-handle = <&phy5>;
+};
+
+&port6 {
+	phy-handle = <&phy6>;
+};
+
+&port7 {
+	phy-handle = <&phy7>;
+};
+
+&port8 {
+	phy-handle = <&phy8>;
+};
+
+&port9 {
+	phy-handle = <&phy9>;
+};
+
+&port10 {
+	phy-handle = <&phy10>;
+};
+
+&port11 {
+	phy-handle = <&phy11>;
+};
diff --git a/arch/mips/dts/mscc,luton.dtsi b/arch/mips/dts/mscc,luton.dtsi
index d11ec48..de354fe 100644
--- a/arch/mips/dts/mscc,luton.dtsi
+++ b/arch/mips/dts/mscc,luton.dtsi
@@ -92,5 +92,170 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 		};
+
+		switch: switch at 1010000 {
+			compatible = "mscc,vsc7527-switch";
+			reg = <0x1e0000 0x0100>, // VTSS_TO_DEV_0
+			      <0x1f0000 0x0100>, // VTSS_TO_DEV_1
+			      <0x200000 0x0100>, // VTSS_TO_DEV_2
+			      <0x210000 0x0100>, // VTSS_TO_DEV_3
+			      <0x220000 0x0100>, // VTSS_TO_DEV_4
+			      <0x230000 0x0100>, // VTSS_TO_DEV_5
+			      <0x240000 0x0100>, // VTSS_TO_DEV_6
+			      <0x250000 0x0100>, // VTSS_TO_DEV_7
+			      <0x260000 0x0100>, // VTSS_TO_DEV_8
+			      <0x270000 0x0100>, // VTSS_TO_DEV_9
+			      <0x280000 0x0100>, // VTSS_TO_DEV_10
+			      <0x290000 0x0100>, // VTSS_TO_DEV_11
+			      <0x2a0000 0x0100>, // VTSS_TO_DEV_12
+			      <0x2b0000 0x0100>, // VTSS_TO_DEV_13
+			      <0x2c0000 0x0100>, // VTSS_TO_DEV_14
+			      <0x2d0000 0x0100>, // VTSS_TO_DEV_15
+			      <0x2e0000 0x0100>, // VTSS_TO_DEV_16
+			      <0x2f0000 0x0100>, // VTSS_TO_DEV_17
+			      <0x300000 0x0100>, // VTSS_TO_DEV_18
+			      <0x310000 0x0100>, // VTSS_TO_DEV_19
+			      <0x320000 0x0100>, // VTSS_TO_DEV_20
+			      <0x330000 0x0100>, // VTSS_TO_DEV_21
+			      <0x340000 0x0100>, // VTSS_TO_DEV_22
+			      <0x350000 0x0100>, // VTSS_TO_DEV_23
+			      <0x010000 0x1000>, // VTSS_TO_SYS
+			      <0x020000 0x1000>, // VTSS_TO_ANA
+			      <0x030000 0x1000>, // VTSS_TO_REW
+			      <0x070000 0x1000>, // VTSS_TO_DEVCPU_GCB
+			      <0x080000 0x0100>, // VTSS_TO_DEVCPU_QS
+			      <0x0a0000 0x0100>; // VTSS_TO_HSIO
+			reg-names = "port0", "port1", "port2", "port3",
+				    "port4", "port5", "port6", "port7",
+				    "port8", "port9", "port10", "port11",
+				    "port12", "port13", "port14", "port15",
+				    "port16", "port17", "port18", "port19",
+				    "port20", "port21", "port22", "port23",
+				    "sys", "ana", "rew", "gcb", "qs", "hsio";
+			status = "okay";
+
+			ethernet-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port0: port at 0 {
+					reg = <0>;
+				};
+				port1: port at 1 {
+					reg = <1>;
+				};
+				port2: port at 2 {
+					reg = <2>;
+				};
+				port3: port at 3 {
+					reg = <3>;
+				};
+				port4: port at 4 {
+					reg = <4>;
+				};
+				port5: port at 5 {
+					reg = <5>;
+				};
+				port6: port at 6 {
+					reg = <6>;
+				};
+				port7: port at 7 {
+					reg = <7>;
+				};
+				port8: port at 8 {
+					reg = <8>;
+				};
+				port9: port at 9 {
+					reg = <9>;
+				};
+				port10: port at 10 {
+					reg = <10>;
+				};
+				port11: port at 11 {
+					reg = <11>;
+				};
+				port12: port at 12 {
+					reg = <12>;
+				};
+				port13: port at 13 {
+					reg = <13>;
+				};
+				port14: port at 14 {
+					reg = <14>;
+				};
+				port15: port at 15 {
+					reg = <15>;
+				};
+				port16: port at 16 {
+					reg = <16>;
+				};
+				port17: port at 17 {
+					reg = <17>;
+				};
+				port18: port at 18 {
+					reg = <18>;
+				};
+				port19: port at 19 {
+					reg = <19>;
+				};
+				port20: port at 20 {
+					reg = <20>;
+				};
+				port21: port at 21 {
+					reg = <21>;
+				};
+				port22: port at 22 {
+					reg = <22>;
+				};
+				port23: port at 23 {
+					reg = <23>;
+				};
+			};
+		};
+
+		mdio0: mdio at 700a0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "mscc,luton-miim";
+			reg = <0x700a0 0x24>;
+			status = "disabled";
+
+			phy0: ethernet-phy at 0 {
+				reg = <0>;
+			};
+			phy1: ethernet-phy at 1 {
+				reg = <1>;
+			};
+			phy2: ethernet-phy at 2 {
+				reg = <2>;
+			};
+			phy3: ethernet-phy at 3 {
+				reg = <3>;
+			};
+			phy4: ethernet-phy at 4 {
+				reg = <4>;
+			};
+			phy5: ethernet-phy at 5 {
+				reg = <5>;
+			};
+			phy6: ethernet-phy at 6 {
+				reg = <6>;
+			};
+			phy7: ethernet-phy at 7 {
+				reg = <7>;
+			};
+			phy8: ethernet-phy at 8 {
+				reg = <8>;
+			};
+			phy9: ethernet-phy at 9 {
+				reg = <9>;
+			};
+			phy10: ethernet-phy at 10 {
+				reg = <10>;
+			};
+			phy11: ethernet-phy at 11 {
+				reg = <11>;
+			};
+		};
 	};
 };
-- 
2.7.4

[U-Boot] [PATCH 2/3] net: add MSCC Luton switch support

[Horatiu Vultur]

Add network driver for Microsemi Ethernet switch is present
on Luton SoCs.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
 MAINTAINERS                |   1 +
 drivers/net/Kconfig        |   7 +
 drivers/net/Makefile       |   1 +
 drivers/net/luton_switch.c | 972 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 981 insertions(+)
 create mode 100644 drivers/net/luton_switch.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 1cb092e..253274b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -540,6 +540,7 @@ F:	drivers/spi/mscc_bb_spi.c
 F:	include/configs/vcoreiii.h
 F:	drivers/pinctrl/mscc/
 F:	drivers/net/ocelot_switch.c
+F:	drivers/net/luton_switch.c
 
 MIPS JZ4780
 M:	Ezequiel Garcia <ezequiel@collabora.com>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 39ce4e8..d82037d 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -439,6 +439,13 @@ config MSCC_OCELOT_SWITCH
 	help
 	  This driver supports the Ocelot network switch device.
 
+config MSCC_LUTON_SWITCH
+	bool "Luton switch driver"
+	depends on DM_ETH && ARCH_MSCC
+	select PHYLIB
+	help
+	  This driver supports the Luton network switch device.
+
 config ETHER_ON_FEC1
 	bool "FEC1"
 	depends on MPC8XX_FEC
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index e38c164..470660d 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -76,3 +76,4 @@ obj-$(CONFIG_SNI_AVE) += sni_ave.o
 obj-y += ti/
 obj-$(CONFIG_MEDIATEK_ETH) += mtk_eth.o
 obj-$(CONFIG_MSCC_OCELOT_SWITCH) += ocelot_switch.o
+obj-$(CONFIG_MSCC_LUTON_SWITCH) += luton_switch.o
diff --git a/drivers/net/luton_switch.c b/drivers/net/luton_switch.c
new file mode 100644
index 0000000..816b5fe
--- /dev/null
+++ b/drivers/net/luton_switch.c
@@ -0,0 +1,972 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Microsemi Corporation
+ */
+
+#include <common.h>
+#include <config.h>
+#include <dm.h>
+#include <dm/of_access.h>
+#include <dm/of_addr.h>
+#include <fdt_support.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <miiphy.h>
+#include <net.h>
+#include <wait_bit.h>
+
+#define MIIM_STATUS		0x0
+#define		MIIM_STATUS_BUSY		BIT(3)
+#define MIIM_CMD		0x8
+#define		MIIM_CMD_SCAN		BIT(0)
+#define		MIIM_CMD_OPR_WRITE		BIT(1)
+#define		MIIM_CMD_OPR_READ		BIT(2)
+#define		MIIM_CMD_SINGLE_SCAN	BIT(3)
+#define		MIIM_CMD_WRDATA(x)		((x) << 4)
+#define		MIIM_CMD_REGAD(x)		((x) << 20)
+#define		MIIM_CMD_PHYAD(x)		((x) << 25)
+#define		MIIM_CMD_VLD		BIT(31)
+#define MIIM_DATA		0xC
+#define		MIIM_DATA_ERROR		(0x3 << 16)
+
+#define ANA_PORT_VLAN_CFG(x)		(0x00 + 0x80 * (x))
+#define		ANA_PORT_VLAN_CFG_AWARE_ENA	BIT(20)
+#define		ANA_PORT_VLAN_CFG_POP_CNT(x)	((x) << 18)
+#define ANA_PORT_CPU_FWD_CFG(x)		(0x50 + 0x80 * (x))
+#define		ANA_PORT_CPU_FWD_CFG_SRC_COPY_ENA	BIT(1)
+#define ANA_PORT_PORT_CFG(x)		(0x60 + 0x80 * (x))
+#define		ANA_PORT_PORT_CFG_RECV_ENA	BIT(5)
+#define ANA_TABLES_MACHDATA		0x11b0
+#define ANA_TABLES_MACLDATA		0x11b4
+#define ANA_TABLES_MACACCESS		0x11b8
+#define		ANA_TABLES_MACACCESS_MAC_CPU_COPY	BIT(15)
+#define		ANA_TABLES_MACACCESS_VALID		BIT(11)
+#define		ANA_TABLES_MACACCESS_ENTRYTYPE(x)	((x) << 9)
+#define		ANA_TABLES_MACACCESS_DEST_IDX(x)	((x) << 3)
+#define		ANA_TABLES_MACACCESS_MAC_TABLE_CMD(x)	(x)
+#define		ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M	GENMASK(2, 0)
+#define		MACACCESS_CMD_IDLE		0
+#define		MACACCESS_CMD_LEARN		1
+#define ANA_PGID(x)			(0x1000 + 4 * (x))
+
+#define SYS_FRM_AGING			0x8300
+
+#define SYS_SYSTEM_RST_CFG		0x81b0
+#define		SYS_SYSTEM_RST_MEM_INIT		BIT(0)
+#define		SYS_SYSTEM_RST_MEM_ENA		BIT(1)
+#define		SYS_SYSTEM_RST_CORE_ENA		BIT(2)
+#define SYS_PORT_MODE(x)		(0x81bc + 0x4 * (x))
+#define		SYS_PORT_MODE_INCL_INJ_HDR	BIT(0)
+#define SYS_SWITCH_PORT_MODE(x)		(0x8294 + 0x4 * (x))
+#define		SYS_SWITCH_PORT_MODE_PORT_ENA	BIT(3)
+#define SYS_EGR_NO_SHARING		0x8378
+#define SYS_SCH_CPU			0x85a0
+
+#define REW_PORT_CFG(x)			(0x8 + 0x80 * (x))
+#define		REW_PORT_CFG_IFH_INSERT_ENA	BIT(7)
+
+#define GCB_DEVCPU_RST_SOFT_CHIP_RST	0x90
+#define		GCB_DEVCPU_RST_SOFT_CHIP_RST_SOFT_PHY	BIT(1)
+#define GCB_MISC_STAT			0x11c
+#define		GCB_MISC_STAT_PHY_READY			BIT(3)
+
+#define	QS_XTR_MAP(x)			(0x10 + 4 * (x))
+#define		QS_XTR_MAP_GRP			BIT(4)
+#define		QS_XTR_MAP_ENA			BIT(0)
+#define QS_XTR_RD(x)			(0x18 + 4 * (x))
+#define QS_XTR_FLUSH			0x28
+#define		QS_XTR_FLUSH_FLUSH		BIT(0)
+#define QS_XTR_DATA_PRESENT		0x2c
+#define QS_INJ_WR(x)			(0x3c + 4 * (x))
+#define QS_INJ_CTRL(x)			(0x44 + 4 * (x))
+#define		QS_INJ_CTRL_GAP_SIZE(x)		((x) << 21)
+#define		QS_INJ_CTRL_EOF			BIT(19)
+#define		QS_INJ_CTRL_SOF			BIT(18)
+#define		QS_INJ_CTRL_VLD_BYTES(x)	((x) << 16)
+
+#define HSIO_PLL5G_CFG_PLL5G_CFG2	0x8
+
+#define HSIO_RCOMP_CFG_CFG0		0x20
+#define		HSIO_RCOMP_CFG_CFG0_MODE_SEL(x)			((x) << 8)
+#define		HSIO_RCOMP_CFG_CFG0_RUN_CAL			BIT(12)
+#define HSIO_RCOMP_STATUS		0x24
+#define		HSIO_RCOMP_STATUS_BUSY				BIT(12)
+#define		HSIO_RCOMP_STATUS_RCOMP_M			GENMASK(3, 0)
+#define HSIO_SERDES6G_ANA_CFG_DES_CFG	0x64
+#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_ANA(x)		((x) << 1)
+#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_HYST(x)	((x) << 5)
+#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_MBTR_CTRL(x)	((x) << 10)
+#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_PHS_CTRL(x)	((x) << 13)
+#define HSIO_SERDES6G_ANA_CFG_IB_CFG	0x68
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_RESISTOR_CTRL(x)	(x)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_VBCOM(x)		((x) << 4)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_VBAC(x)		((x) << 7)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_RT(x)		((x) << 9)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_RF(x)		((x) << 14)
+#define HSIO_SERDES6G_ANA_CFG_IB_CFG1	0x6c
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_RST		BIT(0)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSDC	BIT(2)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSAC	BIT(3)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_ANEG_MODE	BIT(6)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_CHF		BIT(7)
+#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_C(x)		((x) << 8)
+#define HSIO_SERDES6G_ANA_CFG_OB_CFG	0x70
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_SR(x)		((x) << 4)
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_SR_H		BIT(8)
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_POST0(x)		((x) << 23)
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_POL		BIT(29)
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_ENA1V_MODE	BIT(30)
+#define HSIO_SERDES6G_ANA_CFG_OB_CFG1	0x74
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG1_LEV(x)		(x)
+#define		HSIO_SERDES6G_ANA_CFG_OB_CFG1_ENA_CAS(x)	((x) << 6)
+#define HSIO_SERDES6G_ANA_CFG_COMMON_CFG 0x7c
+#define		HSIO_SERDES6G_ANA_CFG_COMMON_CFG_IF_MODE(x)	(x)
+#define		HSIO_SERDES6G_ANA_CFG_COMMON_CFG_ENA_LANE	BIT(18)
+#define		HSIO_SERDES6G_ANA_CFG_COMMON_CFG_SYS_RST	BIT(31)
+#define HSIO_SERDES6G_ANA_CFG_PLL_CFG	0x80
+#define		HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_ENA		BIT(7)
+#define		HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_CTRL_DATA(x)	((x) << 8)
+#define HSIO_SERDES6G_ANA_CFG_SER_CFG	0x84
+#define HSIO_SERDES6G_DIG_CFG_MISC_CFG	0x88
+#define		HSIO_SERDES6G_DIG_CFG_MISC_CFG_LANE_RST		BIT(0)
+#define HSIO_MCB_SERDES6G_CFG		0xac
+#define		HSIO_MCB_SERDES6G_CFG_WR_ONE_SHOT		BIT(31)
+#define		HSIO_MCB_SERDES6G_CFG_ADDR(x)			(x)
+
+#define DEV_GMII_PORT_MODE_CLK		0x0
+#define		DEV_GMII_PORT_MODE_CLK_PHY_RST	BIT(0)
+#define DEV_GMII_MAC_CFG_MAC_ENA	0xc
+#define		DEV_GMII_MAC_CFG_MAC_ENA_RX_ENA		BIT(4)
+#define		DEV_GMII_MAC_CFG_MAC_ENA_TX_ENA		BIT(0)
+
+#define DEV_PORT_MODE_CLK		0x4
+#define		DEV_PORT_MODE_CLK_PHY_RST		BIT(2)
+#define		DEV_PORT_MODE_CLK_LINK_SPEED_1000	1
+#define DEV_MAC_CFG_MAC_ENA		0x10
+#define		DEV_MAC_CFG_MAC_ENA_RX_ENA		BIT(4)
+#define		DEV_MAC_CFG_MAC_ENA_TX_ENA		BIT(0)
+#define DEV_MAC_CFG_MAC_IFG		0x24
+#define		DEV_MAC_CFG_MAC_IFG_TX_IFG(x)		((x) << 8)
+#define		DEV_MAC_CFG_MAC_IFG_RX_IFG2(x)		((x) << 4)
+#define		DEV_MAC_CFG_MAC_IFG_RX_IFG1(x)		(x)
+#define DEV_PCS1G_CFG_PCS1G_CFG		0x40
+#define		DEV_PCS1G_CFG_PCS1G_CFG_PCS_ENA		BIT(0)
+#define DEV_PCS1G_CFG_PCS1G_MODE	0x44
+#define DEV_PCS1G_CFG_PCS1G_SD		0x48
+#define DEV_PCS1G_CFG_PCS1G_ANEG	0x4c
+#define		DEV_PCS1G_CFG_PCS1G_ANEG_ADV_ABILITY(x)	((x) << 16)
+
+#define XTR_EOF_0     (0x80000000u)
+#define XTR_EOF_1     (0x80000001u)
+#define XTR_EOF_2     (0x80000002u)
+#define XTR_EOF_3     (0x80000003u)
+#define XTR_PRUNED    (0x80000004u)
+#define XTR_ABORT     (0x80000005u)
+#define XTR_ESCAPE    (0x80000006u)
+#define XTR_NOT_READY (0x80000007u)
+
+#define IFH_INJ_BYPASS		BIT(31)
+#define IFH_TAG_TYPE_C		0
+#define XTR_VALID_BYTES(x)	(4 - ((x) & 3))
+#define MAC_VID			1
+#define CPU_PORT		26
+#define INTERNAL_PORT_MSK	0xFFFFFF
+#define IFH_LEN			2
+#define LUTON_BUF_CELL_SZ	60
+#define ETH_ALEN		6
+#define PGID_BROADCAST		28
+#define PGID_UNICAST		29
+#define PGID_SRC		80
+
+enum luton_target {
+	PORT0,
+	PORT1,
+	PORT2,
+	PORT3,
+	PORT4,
+	PORT5,
+	PORT6,
+	PORT7,
+	PORT8,
+	PORT9,
+	PORT10,
+	PORT11,
+	PORT12,
+	PORT13,
+	PORT14,
+	PORT15,
+	PORT16,
+	PORT17,
+	PORT18,
+	PORT19,
+	PORT20,
+	PORT21,
+	PORT22,
+	PORT23,
+	SYS,
+	ANA,
+	REW,
+	GCB,
+	QS,
+	HSIO,
+	TARGET_MAX,
+};
+
+#define MAX_PORT (PORT23 - PORT0 + 1)
+
+#define MIN_INT_PORT PORT0
+#define MAX_INT_PORT (PORT11 - PORT0  + 1)
+#define MIN_EXT_PORT PORT12
+#define MAX_EXT_PORT MAX_PORT
+
+/* MAC table entry types.
+ * ENTRYTYPE_NORMAL is subject to aging.
+ * ENTRYTYPE_LOCKED is not subject to aging.
+ */
+enum macaccess_entry_type {
+	ENTRYTYPE_NORMAL = 0,
+	ENTRYTYPE_LOCKED,
+};
+
+enum luton_mdio_target {
+	MIIM,
+	TARGET_MDIO_MAX,
+};
+
+enum luton_phy_id {
+	INTERNAL,
+	EXTERNAL,
+	NUM_PHY,
+};
+
+struct luton_private {
+	void __iomem *regs[TARGET_MAX];
+	struct mii_dev *bus[NUM_PHY];
+	struct luton_soc_data *data;
+};
+
+struct mscc_miim_dev {
+	void __iomem *regs;
+	void __iomem *phy_regs;
+};
+
+struct mscc_miim_dev miim[NUM_PHY];
+
+static int mscc_miim_wait_ready(struct mscc_miim_dev *miim)
+{
+	return wait_for_bit_le32(miim->regs + MIIM_STATUS, MIIM_STATUS_BUSY,
+				 false, 250, false);
+}
+
+static int mscc_miim_read(struct mii_dev *bus, int addr, int devad, int reg)
+{
+	struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
+	u32 val;
+	int ret;
+
+	ret = mscc_miim_wait_ready(miim);
+	if (ret)
+		goto out;
+
+	writel(MIIM_CMD_VLD | MIIM_CMD_PHYAD(addr) |
+	       MIIM_CMD_REGAD(reg) | MIIM_CMD_OPR_READ,
+	       miim->regs + MIIM_CMD);
+
+	ret = mscc_miim_wait_ready(miim);
+	if (ret)
+		goto out;
+
+	val = readl(miim->regs + MIIM_DATA);
+	if (val & MIIM_DATA_ERROR) {
+		ret = -EIO;
+		goto out;
+	}
+
+	ret = val & 0xFFFF;
+ out:
+	return ret;
+}
+
+static int mscc_miim_write(struct mii_dev *bus, int addr, int devad, int reg,
+			   u16 val)
+{
+	struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
+	int ret;
+
+	ret = mscc_miim_wait_ready(miim);
+	if (ret < 0)
+		goto out;
+
+	writel(MIIM_CMD_VLD | MIIM_CMD_PHYAD(addr) |
+	       MIIM_CMD_REGAD(reg) | MIIM_CMD_WRDATA(val) |
+	       MIIM_CMD_OPR_WRITE, miim->regs + MIIM_CMD);
+
+ out:
+	return ret;
+}
+
+static struct mii_dev *luton_mdiobus_init(struct udevice *dev,
+					  int mdiobus_id)
+{
+	unsigned long phy_size[NUM_PHY];
+	phys_addr_t phy_base[NUM_PHY];
+	struct ofnode_phandle_args phandle;
+	ofnode eth_node, node, mdio_node;
+	struct resource res;
+	struct mii_dev *bus;
+	fdt32_t faddr;
+	int i;
+
+	bus = mdio_alloc();
+	if (!bus)
+		return NULL;
+
+	/* gather only the first mdio bus */
+	eth_node = dev_read_first_subnode(dev);
+	node = ofnode_first_subnode(eth_node);
+	ofnode_parse_phandle_with_args(node, "phy-handle", NULL, 0, 0,
+				       &phandle);
+	mdio_node = ofnode_get_parent(phandle.node);
+
+	for (i = 0; i < TARGET_MDIO_MAX; i++) {
+		if (ofnode_read_resource(mdio_node, i, &res)) {
+			pr_err("%s: get OF resource failed\n", __func__);
+			return NULL;
+		}
+
+		faddr = cpu_to_fdt32(res.start);
+		phy_base[i] = ofnode_translate_address(mdio_node, &faddr);
+		phy_size[i] = res.end - res.start;
+	}
+
+	strcpy(bus->name, "miim-internal");
+	miim[mdiobus_id].regs = ioremap(phy_base[mdiobus_id],
+					phy_size[mdiobus_id]);
+	bus->priv = &miim[mdiobus_id];
+	bus->read = mscc_miim_read;
+	bus->write = mscc_miim_write;
+
+	if (mdio_register(bus))
+		return NULL;
+	else
+		return bus;
+}
+
+static void luton_cpu_capture_setup(struct luton_private *priv)
+{
+	int i;
+
+	/* map the 8 CPU extraction queues to CPU port 26 */
+	writel(0x0, priv->regs[SYS] + SYS_SCH_CPU);
+
+	for (i = 0; i <= 1; i++) {
+		/*
+		 * One to one mapping from CPU Queue number to Group extraction
+		 * number
+		 */
+		writel(QS_XTR_MAP_ENA | (QS_XTR_MAP_GRP * i),
+		       priv->regs[QS] + QS_XTR_MAP(i));
+
+		/* Enable IFH insertion/parsing on CPU ports */
+		setbits_le32(priv->regs[REW] + REW_PORT_CFG(CPU_PORT + i),
+			     REW_PORT_CFG_IFH_INSERT_ENA);
+
+		/* Enable IFH parsing on CPU port 0 and 1 */
+		setbits_le32(priv->regs[SYS] + SYS_PORT_MODE(CPU_PORT + i),
+			     SYS_PORT_MODE_INCL_INJ_HDR);
+	}
+
+	/* Make VLAN aware for CPU traffic */
+	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
+	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
+	       MAC_VID,
+	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(CPU_PORT));
+
+	/* Disable learning (only RECV_ENA must be set) */
+	writel(ANA_PORT_PORT_CFG_RECV_ENA,
+	       priv->regs[ANA] + ANA_PORT_PORT_CFG(CPU_PORT));
+
+	/* Enable switching to/from cpu port */
+	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(CPU_PORT),
+		     SYS_SWITCH_PORT_MODE_PORT_ENA);
+
+	setbits_le32(priv->regs[SYS] + SYS_EGR_NO_SHARING, BIT(CPU_PORT));
+}
+
+static void luton_gmii_port_init(struct luton_private *priv, int port)
+{
+	void __iomem *regs = priv->regs[port];
+
+	writel(0, regs + DEV_GMII_PORT_MODE_CLK);
+
+	/* Enable MAC RX and TX */
+	writel(DEV_GMII_MAC_CFG_MAC_ENA_RX_ENA |
+	       DEV_GMII_MAC_CFG_MAC_ENA_TX_ENA,
+	       regs + DEV_GMII_MAC_CFG_MAC_ENA);
+
+	/* Make VLAN aware for CPU traffic */
+	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
+	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
+	       MAC_VID,
+	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
+
+	/* Enable switching to/from port */
+	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(port - PORT0),
+		     SYS_SWITCH_PORT_MODE_PORT_ENA);
+}
+
+static void luton_port_init(struct luton_private *priv, int port)
+{
+	void __iomem *regs = priv->regs[port];
+
+	writel(0, regs + DEV_PORT_MODE_CLK);
+
+	/* Enable MAC RX and TX */
+	writel(DEV_MAC_CFG_MAC_ENA_RX_ENA |
+	       DEV_MAC_CFG_MAC_ENA_TX_ENA,
+	       regs + DEV_MAC_CFG_MAC_ENA);
+
+	/* Make VLAN aware for CPU traffic */
+	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
+	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
+	       MAC_VID,
+	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
+
+	/* Enable switching to/from port */
+	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(port - PORT0),
+		     SYS_SWITCH_PORT_MODE_PORT_ENA);
+}
+
+static void luton_ext_port_init(struct luton_private *priv, int port)
+{
+	void __iomem *regs = priv->regs[port];
+
+	/* Enable PCS */
+	writel(DEV_PCS1G_CFG_PCS1G_CFG_PCS_ENA,
+	       regs + DEV_PCS1G_CFG_PCS1G_CFG);
+
+	/* Disable Signal Detect */
+	writel(0, regs + DEV_PCS1G_CFG_PCS1G_SD);
+
+	/* Enable MAC RX and TX */
+	writel(DEV_MAC_CFG_MAC_ENA_RX_ENA |
+	       DEV_MAC_CFG_MAC_ENA_TX_ENA,
+	       regs + DEV_MAC_CFG_MAC_ENA);
+
+	/* Clear sgmii_mode_ena */
+	writel(0, regs + DEV_PCS1G_CFG_PCS1G_MODE);
+
+	/*
+	 * Clear sw_resolve_ena(bit 0) and set adv_ability to
+	 * something meaningful just in case
+	 */
+	writel(DEV_PCS1G_CFG_PCS1G_ANEG_ADV_ABILITY(0x20),
+	       regs + DEV_PCS1G_CFG_PCS1G_ANEG);
+
+	/* Set MAC IFG Gaps */
+	writel(DEV_MAC_CFG_MAC_IFG_TX_IFG(7) |
+	       DEV_MAC_CFG_MAC_IFG_RX_IFG1(1) |
+	       DEV_MAC_CFG_MAC_IFG_RX_IFG2(5),
+	       regs + DEV_MAC_CFG_MAC_IFG);
+
+	/* Set link speed and release all resets */
+	writel(DEV_PORT_MODE_CLK_LINK_SPEED_1000,
+	       regs + DEV_PORT_MODE_CLK);
+
+	/* Make VLAN aware for CPU traffic */
+	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
+	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
+	       MAC_VID,
+	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
+
+	/* Enable switching to/from port */
+	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(port - PORT0),
+		     SYS_SWITCH_PORT_MODE_PORT_ENA);
+}
+
+static void serdes6g_write(struct luton_private *priv, u32 addr)
+{
+	u32 data;
+
+	writel(HSIO_MCB_SERDES6G_CFG_WR_ONE_SHOT |
+	       HSIO_MCB_SERDES6G_CFG_ADDR(addr),
+	       priv->regs[HSIO] + HSIO_MCB_SERDES6G_CFG);
+
+	do {
+		data = readl(priv->regs[HSIO] + HSIO_MCB_SERDES6G_CFG);
+	} while (data & HSIO_MCB_SERDES6G_CFG_WR_ONE_SHOT);
+
+	mdelay(100);
+}
+
+static void serdes6g_cfg(struct luton_private *priv)
+{
+	writel(HSIO_RCOMP_CFG_CFG0_MODE_SEL(0x3) |
+	       HSIO_RCOMP_CFG_CFG0_RUN_CAL,
+	       priv->regs[HSIO] + HSIO_RCOMP_CFG_CFG0);
+
+	while (readl(priv->regs[HSIO] + HSIO_RCOMP_STATUS) &
+	       HSIO_RCOMP_STATUS_BUSY)
+		;
+
+	writel(HSIO_SERDES6G_ANA_CFG_OB_CFG_SR(0xb) |
+	       HSIO_SERDES6G_ANA_CFG_OB_CFG_SR_H |
+	       HSIO_SERDES6G_ANA_CFG_OB_CFG_POST0(0x10) |
+	       HSIO_SERDES6G_ANA_CFG_OB_CFG_POL |
+	       HSIO_SERDES6G_ANA_CFG_OB_CFG_ENA1V_MODE,
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_OB_CFG);
+	writel(HSIO_SERDES6G_ANA_CFG_OB_CFG1_LEV(0x18) |
+	       HSIO_SERDES6G_ANA_CFG_OB_CFG1_ENA_CAS(0x1),
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_OB_CFG1);
+	writel(HSIO_SERDES6G_ANA_CFG_IB_CFG_RESISTOR_CTRL(0xc) |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG_VBCOM(0x4) |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG_VBAC(0x5) |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG_RT(0xf) |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG_RF(0x4),
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_IB_CFG);
+	writel(HSIO_SERDES6G_ANA_CFG_IB_CFG1_RST |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSDC |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSAC |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_ANEG_MODE |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_CHF |
+	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_C(0x4),
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_IB_CFG1);
+	writel(HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_ANA(0x5) |
+	       HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_HYST(0x5) |
+	       HSIO_SERDES6G_ANA_CFG_DES_CFG_MBTR_CTRL(0x2) |
+	       HSIO_SERDES6G_ANA_CFG_DES_CFG_PHS_CTRL(0x6),
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_DES_CFG);
+	writel(HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_ENA |
+	       HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_CTRL_DATA(0x78),
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_PLL_CFG);
+	writel(HSIO_SERDES6G_ANA_CFG_COMMON_CFG_IF_MODE(0x30) |
+	       HSIO_SERDES6G_ANA_CFG_COMMON_CFG_ENA_LANE,
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_COMMON_CFG);
+	/*
+	 * There are 4 serdes6g, configure all except serdes6g0, therefore
+	 * the address is b1110
+	 */
+	serdes6g_write(priv, 0xe);
+
+	writel(readl(priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_COMMON_CFG) |
+	       HSIO_SERDES6G_ANA_CFG_COMMON_CFG_SYS_RST,
+	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_COMMON_CFG);
+	serdes6g_write(priv, 0xe);
+
+	clrbits_le32(priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_IB_CFG1,
+		     HSIO_SERDES6G_ANA_CFG_IB_CFG1_RST);
+	writel(HSIO_SERDES6G_DIG_CFG_MISC_CFG_LANE_RST,
+	       priv->regs[HSIO] + HSIO_SERDES6G_DIG_CFG_MISC_CFG);
+	serdes6g_write(priv, 0xe);
+}
+
+static int luton_switch_init(struct luton_private *priv)
+{
+	setbits_le32(priv->regs[HSIO] + HSIO_PLL5G_CFG_PLL5G_CFG2, BIT(1));
+	clrbits_le32(priv->regs[HSIO] + HSIO_PLL5G_CFG_PLL5G_CFG2, BIT(1));
+
+	/* Reset switch & memories */
+	writel(SYS_SYSTEM_RST_MEM_ENA | SYS_SYSTEM_RST_MEM_INIT,
+	       priv->regs[SYS] + SYS_SYSTEM_RST_CFG);
+
+	/* Wait to complete */
+	if (wait_for_bit_le32(priv->regs[SYS] + SYS_SYSTEM_RST_CFG,
+			      SYS_SYSTEM_RST_MEM_INIT, false, 2000, false)) {
+		printf("Timeout in memory reset\n");
+	}
+
+	/* Enable switch core */
+	setbits_le32(priv->regs[SYS] + SYS_SYSTEM_RST_CFG,
+		     SYS_SYSTEM_RST_CORE_ENA);
+
+	/* Setup the Serdes6g macros */
+	serdes6g_cfg(priv);
+
+	return 0;
+}
+
+static void luton_switch_flush(struct luton_private *priv)
+{
+	/* All Queues flush */
+	setbits_le32(priv->regs[QS] + QS_XTR_FLUSH, QS_XTR_FLUSH_FLUSH);
+
+	/* Allow to drain */
+	mdelay(1);
+
+	/* All Queues normal */
+	clrbits_le32(priv->regs[QS] + QS_XTR_FLUSH, QS_XTR_FLUSH_FLUSH);
+}
+
+static int luton_initialize(struct luton_private *priv)
+{
+	int ret, i;
+
+	/* Initialize switch memories, enable core */
+	ret = luton_switch_init(priv);
+	if (ret)
+		return ret;
+
+	/*
+	 * Disable port-to-port by switching
+	 * Put front ports in "port isolation modes" - i.e. they can't send
+	 * to other ports - via the PGID sorce masks.
+	 */
+	for (i = 0; i < MAX_PORT; i++)
+		writel(0, priv->regs[ANA] + ANA_PGID(PGID_SRC + i));
+
+	/* Flush queues */
+	luton_switch_flush(priv);
+
+	/* Setup frame ageing - "2 sec" - The unit is 4ns on Luton*/
+	writel(2000000000 / 4,
+	       priv->regs[SYS] + SYS_FRM_AGING);
+
+	for (i = PORT0; i < MAX_PORT; i++) {
+		if (i < PORT10)
+			luton_gmii_port_init(priv, i);
+		else
+			if (i == PORT10 || i == PORT11)
+				luton_port_init(priv, i);
+			else
+				luton_ext_port_init(priv, i);
+	}
+
+	luton_cpu_capture_setup(priv);
+
+	return 0;
+}
+
+static inline int luton_vlant_wait_for_completion(struct luton_private *priv)
+{
+	unsigned int val, timeout = 10;
+
+	/*
+	 * Wait for the issued mac table command to be completed, or timeout.
+	 * When the command read from ANA_TABLES_MACACCESS is
+	 * MACACCESS_CMD_IDLE, the issued command completed successfully.
+	 */
+	do {
+		val = readl(priv->regs[ANA] + ANA_TABLES_MACACCESS);
+		val &= ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M;
+	} while (val != MACACCESS_CMD_IDLE && timeout--);
+
+	if (!timeout)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int luton_mac_table_add(struct luton_private *priv,
+			       const unsigned char mac[ETH_ALEN], int pgid)
+{
+	u32 macl = 0, mach = 0;
+	int ret;
+
+	/*
+	 * Set the MAC address to handle and the vlan associated in a format
+	 * understood by the hardware.
+	 */
+	mach |= MAC_VID << 16;
+	mach |= ((u32)mac[0]) << 8;
+	mach |= ((u32)mac[1]) << 0;
+	macl |= ((u32)mac[2]) << 24;
+	macl |= ((u32)mac[3]) << 16;
+	macl |= ((u32)mac[4]) << 8;
+	macl |= ((u32)mac[5]) << 0;
+
+	writel(macl, priv->regs[ANA] + ANA_TABLES_MACLDATA);
+	writel(mach, priv->regs[ANA] + ANA_TABLES_MACHDATA);
+
+	writel(ANA_TABLES_MACACCESS_VALID |
+	       ANA_TABLES_MACACCESS_DEST_IDX(pgid) |
+	       ANA_TABLES_MACACCESS_ENTRYTYPE(ENTRYTYPE_LOCKED) |
+	       ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN),
+	       priv->regs[ANA] + ANA_TABLES_MACACCESS);
+
+	ret = luton_vlant_wait_for_completion(priv);
+
+	return ret;
+}
+
+static int luton_write_hwaddr(struct udevice *dev)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+	struct eth_pdata *pdata = dev_get_platdata(dev);
+
+	luton_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST);
+
+	writel(BIT(CPU_PORT), priv->regs[ANA] + ANA_PGID(PGID_UNICAST));
+
+	return 0;
+}
+
+static int luton_start(struct udevice *dev)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+	struct eth_pdata *pdata = dev_get_platdata(dev);
+	const unsigned char mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff,
+					      0xff };
+	int ret;
+
+	ret = luton_initialize(priv);
+	if (ret)
+		return ret;
+
+	/* Set MAC address tables entries for CPU redirection */
+	luton_mac_table_add(priv, mac, PGID_BROADCAST);
+
+	writel(BIT(CPU_PORT) | INTERNAL_PORT_MSK,
+	       priv->regs[ANA] + ANA_PGID(PGID_BROADCAST));
+
+	luton_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST);
+
+	writel(BIT(CPU_PORT), priv->regs[ANA] + ANA_PGID(PGID_UNICAST));
+
+	return 0;
+}
+
+static void luton_stop(struct udevice *dev)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+
+	/*
+	 * Switch core only reset affects VCORE-III bus and MIPS frequency
+	 * and thereby also the DDR SDRAM controller. The workaround is to
+	 * not to redirect any trafic to the CPU after the data transfer.
+	 */
+	writel(GENMASK(9, 2), priv->regs[SYS] + SYS_SCH_CPU);
+}
+
+static int luton_send(struct udevice *dev, void *packet, int length)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+	u32 ifh[IFH_LEN];
+	int port = BIT(0);	/* use port 0 */
+	u8 grp = 0;		/* Send everything on CPU group 0 */
+	int i, count = (length + 3) / 4, last = length % 4;
+	u32 *buf = packet;
+
+	writel(QS_INJ_CTRL_GAP_SIZE(1) | QS_INJ_CTRL_SOF,
+	       priv->regs[QS] + QS_INJ_CTRL(grp));
+
+	ifh[0] = IFH_INJ_BYPASS | port;
+	ifh[1] = (IFH_TAG_TYPE_C << 16);
+
+	for (i = 0; i < IFH_LEN; i++)
+		writel(ifh[i], priv->regs[QS] + QS_INJ_WR(grp));
+
+	for (i = 0; i < count; i++)
+		writel(buf[i], priv->regs[QS] + QS_INJ_WR(grp));
+
+	/* Add padding */
+	while (i < (LUTON_BUF_CELL_SZ / 4)) {
+		writel(0, priv->regs[QS] + QS_INJ_WR(grp));
+		i++;
+	}
+
+	/* Indicate EOF and valid bytes in last word */
+	writel(QS_INJ_CTRL_GAP_SIZE(1) |
+	       QS_INJ_CTRL_VLD_BYTES(length < LUTON_BUF_CELL_SZ ? 0 : last) |
+	       QS_INJ_CTRL_EOF, priv->regs[QS] + QS_INJ_CTRL(grp));
+
+	/* Add dummy CRC */
+	writel(0, priv->regs[QS] + QS_INJ_WR(grp));
+
+	return 0;
+}
+
+static int luton_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+	u8 grp = 0;		/* Recv everything on CPU group 0 */
+	u32 *rxbuf = (u32 *)net_rx_packets[0];
+	int byte_cnt = 0;
+	int i = 0;
+	bool eof_flag = false, pruned_flag = false, abort_flag = false;
+
+	if (!(readl(priv->regs[QS] + QS_XTR_DATA_PRESENT) & BIT(grp)))
+		return -EAGAIN;
+
+	/* skip IFH */
+	for (i = 0; i < IFH_LEN; i++)
+		readl(priv->regs[QS] + QS_XTR_RD(grp));
+
+	while (!eof_flag) {
+		u32 val = readl(priv->regs[QS] + QS_XTR_RD(grp));
+
+		switch (val) {
+		case XTR_NOT_READY:
+			debug("%d NOT_READY...?\n", byte_cnt);
+			break;
+		case XTR_ABORT:
+			/* really nedeed?? not done in linux */
+			*rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
+			abort_flag = true;
+			eof_flag = true;
+			debug("XTR_ABORT\n");
+			break;
+		case XTR_EOF_0:
+		case XTR_EOF_1:
+		case XTR_EOF_2:
+		case XTR_EOF_3:
+			byte_cnt += XTR_VALID_BYTES(val);
+			*rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
+			eof_flag = true;
+			debug("EOF\n");
+			break;
+		case XTR_PRUNED:
+			/* But get the last 4 bytes as well */
+			eof_flag = true;
+			pruned_flag = true;
+			debug("PRUNED\n");
+			/* fallthrough */
+		case XTR_ESCAPE:
+			*rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
+			byte_cnt += 4;
+			rxbuf++;
+			debug("ESCAPED\n");
+			break;
+		default:
+			*rxbuf = val;
+			byte_cnt += 4;
+			rxbuf++;
+		}
+	}
+
+	if (abort_flag || pruned_flag || !eof_flag) {
+		debug("Discarded frame: abort:%d pruned:%d eof:%d\n",
+		      abort_flag, pruned_flag, eof_flag);
+		return -EAGAIN;
+	}
+
+	*packetp = net_rx_packets[0];
+
+	return byte_cnt;
+}
+
+static int luton_probe(struct udevice *dev)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+	int i;
+
+	struct {
+		enum luton_target id;
+		char *name;
+	} reg[] = {
+		{ PORT0, "port0" },
+		{ PORT1, "port1" },
+		{ PORT2, "port2" },
+		{ PORT3, "port3" },
+		{ PORT4, "port4" },
+		{ PORT5, "port5" },
+		{ PORT6, "port6" },
+		{ PORT7, "port7" },
+		{ PORT8, "port8" },
+		{ PORT9, "port9" },
+		{ PORT10, "port10" },
+		{ PORT11, "port11" },
+		{ PORT12, "port12" },
+		{ PORT13, "port13" },
+		{ PORT14, "port14" },
+		{ PORT15, "port15" },
+		{ PORT16, "port16" },
+		{ PORT17, "port17" },
+		{ PORT18, "port18" },
+		{ PORT19, "port19" },
+		{ PORT20, "port20" },
+		{ PORT21, "port21" },
+		{ PORT22, "port22" },
+		{ PORT23, "port23" },
+		{ SYS, "sys" },
+		{ ANA, "ana" },
+		{ REW, "rew" },
+		{ GCB, "gcb" },
+		{ QS, "qs" },
+		{ HSIO, "hsio" },
+	};
+
+	if (!priv)
+		return -EINVAL;
+
+	for (i = 0; i < ARRAY_SIZE(reg); i++) {
+		priv->regs[reg[i].id] = dev_remap_addr_name(dev, reg[i].name);
+		if (!priv->regs[reg[i].id]) {
+			debug
+			    ("Error can't get regs base addresses for %s\n",
+			     reg[i].name);
+			return -ENOMEM;
+		}
+	}
+
+	/* Release reset in the CU-PHY */
+	writel(0, priv->regs[GCB] + GCB_DEVCPU_RST_SOFT_CHIP_RST);
+
+	/* Ports with ext phy don't need to reset clk */
+	for (i = PORT0; i < MAX_INT_PORT; i++) {
+		if (i < PORT10)
+			clrbits_le32(priv->regs[i] + DEV_GMII_PORT_MODE_CLK,
+				     DEV_GMII_PORT_MODE_CLK_PHY_RST);
+		else
+			clrbits_le32(priv->regs[i] + DEV_PORT_MODE_CLK,
+				     DEV_PORT_MODE_CLK_PHY_RST);
+	}
+
+	/* Wait for internal PHY to be ready */
+	if (wait_for_bit_le32(priv->regs[GCB] + GCB_MISC_STAT,
+			      GCB_MISC_STAT_PHY_READY, true, 500, false))
+		return -EACCES;
+
+	priv->bus[INTERNAL] = luton_mdiobus_init(dev, INTERNAL);
+
+	for (i = 0; i < MAX_INT_PORT; i++) {
+		phy_connect(priv->bus[INTERNAL], i, dev,
+			    PHY_INTERFACE_MODE_NONE);
+	}
+
+	/*
+	 * coma_mode is need on only one phy, because all the other phys
+	 * will be affected.
+	 */
+	mscc_miim_write(priv->bus[INTERNAL], 0, 0, 31, 0x10);
+	mscc_miim_write(priv->bus[INTERNAL], 0, 0, 14, 0x800);
+	mscc_miim_write(priv->bus[INTERNAL], 0, 0, 31, 0);
+
+	return 0;
+}
+
+static int luton_remove(struct udevice *dev)
+{
+	struct luton_private *priv = dev_get_priv(dev);
+	int i;
+
+	for (i = 0; i < NUM_PHY; i++) {
+		mdio_unregister(priv->bus[i]);
+		mdio_free(priv->bus[i]);
+	}
+
+	return 0;
+}
+
+static const struct eth_ops luton_ops = {
+	.start        = luton_start,
+	.stop         = luton_stop,
+	.send         = luton_send,
+	.recv         = luton_recv,
+	.write_hwaddr = luton_write_hwaddr,
+};
+
+static const struct udevice_id mscc_luton_ids[] = {
+	{.compatible = "mscc,vsc7527-switch", },
+	{ /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(luton) = {
+	.name     = "luton-switch",
+	.id       = UCLASS_ETH,
+	.of_match = mscc_luton_ids,
+	.probe	  = luton_probe,
+	.remove	  = luton_remove,
+	.ops	  = &luton_ops,
+	.priv_auto_alloc_size = sizeof(struct luton_private),
+	.platdata_auto_alloc_size = sizeof(struct eth_pdata),
+};
-- 
2.7.4

[U-Boot] [PATCH 3/3] configs: mscc_luton: add network support.

[Horatiu Vultur]

Update default config to use network driver for Luton SoC.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
 configs/mscc_luton_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configs/mscc_luton_defconfig b/configs/mscc_luton_defconfig
index 7154e97..0fdd9b8 100644
--- a/configs/mscc_luton_defconfig
+++ b/configs/mscc_luton_defconfig
@@ -60,6 +60,7 @@ CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_DM_ETH=y
+CONFIG_MSCC_LUTON_SWITCH=y
 CONFIG_PINCTRL=y
 CONFIG_PINCONF=y
 CONFIG_DM_SERIAL=y
-- 
2.7.4

[U-Boot] [PATCH 2/3] net: add MSCC Luton switch support

[Gregory CLEMENT]

Hi Horatiu,
 
 On lun., janv. 28 2019, Horatiu Vultur <horatiu.vultur@microchip.com> wrote:

> Add network driver for Microsemi Ethernet switch is present
> on Luton SoCs.
>
> Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
> ---
>  MAINTAINERS                |   1 +
>  drivers/net/Kconfig        |   7 +
>  drivers/net/Makefile       |   1 +
>  drivers/net/luton_switch.c | 972 +++++++++++++++++++++++++++++++++++++++++++++

This file is pretty similar to drivers/net/ocelot_switch.c that means
that the support of luton should be merged in this driver as it was done
for the pinctrl.

Gregory

>  4 files changed, 981 insertions(+)
>  create mode 100644 drivers/net/luton_switch.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 1cb092e..253274b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -540,6 +540,7 @@ F:	drivers/spi/mscc_bb_spi.c
>  F:	include/configs/vcoreiii.h
>  F:	drivers/pinctrl/mscc/
>  F:	drivers/net/ocelot_switch.c
> +F:	drivers/net/luton_switch.c
>  
>  MIPS JZ4780
>  M:	Ezequiel Garcia <ezequiel@collabora.com>
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index 39ce4e8..d82037d 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -439,6 +439,13 @@ config MSCC_OCELOT_SWITCH
>  	help
>  	  This driver supports the Ocelot network switch device.
>  
> +config MSCC_LUTON_SWITCH
> +	bool "Luton switch driver"
> +	depends on DM_ETH && ARCH_MSCC
> +	select PHYLIB
> +	help
> +	  This driver supports the Luton network switch device.
> +
>  config ETHER_ON_FEC1
>  	bool "FEC1"
>  	depends on MPC8XX_FEC
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index e38c164..470660d 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -76,3 +76,4 @@ obj-$(CONFIG_SNI_AVE) += sni_ave.o
>  obj-y += ti/
>  obj-$(CONFIG_MEDIATEK_ETH) += mtk_eth.o
>  obj-$(CONFIG_MSCC_OCELOT_SWITCH) += ocelot_switch.o
> +obj-$(CONFIG_MSCC_LUTON_SWITCH) += luton_switch.o
> diff --git a/drivers/net/luton_switch.c b/drivers/net/luton_switch.c
> new file mode 100644
> index 0000000..816b5fe
> --- /dev/null
> +++ b/drivers/net/luton_switch.c
> @@ -0,0 +1,972 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2019 Microsemi Corporation
> + */
> +
> +#include <common.h>
> +#include <config.h>
> +#include <dm.h>
> +#include <dm/of_access.h>
> +#include <dm/of_addr.h>
> +#include <fdt_support.h>
> +#include <linux/io.h>
> +#include <linux/ioport.h>
> +#include <miiphy.h>
> +#include <net.h>
> +#include <wait_bit.h>
> +
> +#define MIIM_STATUS		0x0
> +#define		MIIM_STATUS_BUSY		BIT(3)
> +#define MIIM_CMD		0x8
> +#define		MIIM_CMD_SCAN		BIT(0)
> +#define		MIIM_CMD_OPR_WRITE		BIT(1)
> +#define		MIIM_CMD_OPR_READ		BIT(2)
> +#define		MIIM_CMD_SINGLE_SCAN	BIT(3)
> +#define		MIIM_CMD_WRDATA(x)		((x) << 4)
> +#define		MIIM_CMD_REGAD(x)		((x) << 20)
> +#define		MIIM_CMD_PHYAD(x)		((x) << 25)
> +#define		MIIM_CMD_VLD		BIT(31)
> +#define MIIM_DATA		0xC
> +#define		MIIM_DATA_ERROR		(0x3 << 16)
> +
> +#define ANA_PORT_VLAN_CFG(x)		(0x00 + 0x80 * (x))
> +#define		ANA_PORT_VLAN_CFG_AWARE_ENA	BIT(20)
> +#define		ANA_PORT_VLAN_CFG_POP_CNT(x)	((x) << 18)
> +#define ANA_PORT_CPU_FWD_CFG(x)		(0x50 + 0x80 * (x))
> +#define		ANA_PORT_CPU_FWD_CFG_SRC_COPY_ENA	BIT(1)
> +#define ANA_PORT_PORT_CFG(x)		(0x60 + 0x80 * (x))
> +#define		ANA_PORT_PORT_CFG_RECV_ENA	BIT(5)
> +#define ANA_TABLES_MACHDATA		0x11b0
> +#define ANA_TABLES_MACLDATA		0x11b4
> +#define ANA_TABLES_MACACCESS		0x11b8
> +#define		ANA_TABLES_MACACCESS_MAC_CPU_COPY	BIT(15)
> +#define		ANA_TABLES_MACACCESS_VALID		BIT(11)
> +#define		ANA_TABLES_MACACCESS_ENTRYTYPE(x)	((x) << 9)
> +#define		ANA_TABLES_MACACCESS_DEST_IDX(x)	((x) << 3)
> +#define		ANA_TABLES_MACACCESS_MAC_TABLE_CMD(x)	(x)
> +#define		ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M	GENMASK(2, 0)
> +#define		MACACCESS_CMD_IDLE		0
> +#define		MACACCESS_CMD_LEARN		1
> +#define ANA_PGID(x)			(0x1000 + 4 * (x))
> +
> +#define SYS_FRM_AGING			0x8300
> +
> +#define SYS_SYSTEM_RST_CFG		0x81b0
> +#define		SYS_SYSTEM_RST_MEM_INIT		BIT(0)
> +#define		SYS_SYSTEM_RST_MEM_ENA		BIT(1)
> +#define		SYS_SYSTEM_RST_CORE_ENA		BIT(2)
> +#define SYS_PORT_MODE(x)		(0x81bc + 0x4 * (x))
> +#define		SYS_PORT_MODE_INCL_INJ_HDR	BIT(0)
> +#define SYS_SWITCH_PORT_MODE(x)		(0x8294 + 0x4 * (x))
> +#define		SYS_SWITCH_PORT_MODE_PORT_ENA	BIT(3)
> +#define SYS_EGR_NO_SHARING		0x8378
> +#define SYS_SCH_CPU			0x85a0
> +
> +#define REW_PORT_CFG(x)			(0x8 + 0x80 * (x))
> +#define		REW_PORT_CFG_IFH_INSERT_ENA	BIT(7)
> +
> +#define GCB_DEVCPU_RST_SOFT_CHIP_RST	0x90
> +#define		GCB_DEVCPU_RST_SOFT_CHIP_RST_SOFT_PHY	BIT(1)
> +#define GCB_MISC_STAT			0x11c
> +#define		GCB_MISC_STAT_PHY_READY			BIT(3)
> +
> +#define	QS_XTR_MAP(x)			(0x10 + 4 * (x))
> +#define		QS_XTR_MAP_GRP			BIT(4)
> +#define		QS_XTR_MAP_ENA			BIT(0)
> +#define QS_XTR_RD(x)			(0x18 + 4 * (x))
> +#define QS_XTR_FLUSH			0x28
> +#define		QS_XTR_FLUSH_FLUSH		BIT(0)
> +#define QS_XTR_DATA_PRESENT		0x2c
> +#define QS_INJ_WR(x)			(0x3c + 4 * (x))
> +#define QS_INJ_CTRL(x)			(0x44 + 4 * (x))
> +#define		QS_INJ_CTRL_GAP_SIZE(x)		((x) << 21)
> +#define		QS_INJ_CTRL_EOF			BIT(19)
> +#define		QS_INJ_CTRL_SOF			BIT(18)
> +#define		QS_INJ_CTRL_VLD_BYTES(x)	((x) << 16)
> +
> +#define HSIO_PLL5G_CFG_PLL5G_CFG2	0x8
> +
> +#define HSIO_RCOMP_CFG_CFG0		0x20
> +#define		HSIO_RCOMP_CFG_CFG0_MODE_SEL(x)			((x) << 8)
> +#define		HSIO_RCOMP_CFG_CFG0_RUN_CAL			BIT(12)
> +#define HSIO_RCOMP_STATUS		0x24
> +#define		HSIO_RCOMP_STATUS_BUSY				BIT(12)
> +#define		HSIO_RCOMP_STATUS_RCOMP_M			GENMASK(3, 0)
> +#define HSIO_SERDES6G_ANA_CFG_DES_CFG	0x64
> +#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_ANA(x)		((x) << 1)
> +#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_HYST(x)	((x) << 5)
> +#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_MBTR_CTRL(x)	((x) << 10)
> +#define		HSIO_SERDES6G_ANA_CFG_DES_CFG_PHS_CTRL(x)	((x) << 13)
> +#define HSIO_SERDES6G_ANA_CFG_IB_CFG	0x68
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_RESISTOR_CTRL(x)	(x)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_VBCOM(x)		((x) << 4)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_VBAC(x)		((x) << 7)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_RT(x)		((x) << 9)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG_RF(x)		((x) << 14)
> +#define HSIO_SERDES6G_ANA_CFG_IB_CFG1	0x6c
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_RST		BIT(0)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSDC	BIT(2)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSAC	BIT(3)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_ANEG_MODE	BIT(6)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_CHF		BIT(7)
> +#define		HSIO_SERDES6G_ANA_CFG_IB_CFG1_C(x)		((x) << 8)
> +#define HSIO_SERDES6G_ANA_CFG_OB_CFG	0x70
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_SR(x)		((x) << 4)
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_SR_H		BIT(8)
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_POST0(x)		((x) << 23)
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_POL		BIT(29)
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG_ENA1V_MODE	BIT(30)
> +#define HSIO_SERDES6G_ANA_CFG_OB_CFG1	0x74
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG1_LEV(x)		(x)
> +#define		HSIO_SERDES6G_ANA_CFG_OB_CFG1_ENA_CAS(x)	((x) << 6)
> +#define HSIO_SERDES6G_ANA_CFG_COMMON_CFG 0x7c
> +#define		HSIO_SERDES6G_ANA_CFG_COMMON_CFG_IF_MODE(x)	(x)
> +#define		HSIO_SERDES6G_ANA_CFG_COMMON_CFG_ENA_LANE	BIT(18)
> +#define		HSIO_SERDES6G_ANA_CFG_COMMON_CFG_SYS_RST	BIT(31)
> +#define HSIO_SERDES6G_ANA_CFG_PLL_CFG	0x80
> +#define		HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_ENA		BIT(7)
> +#define		HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_CTRL_DATA(x)	((x) << 8)
> +#define HSIO_SERDES6G_ANA_CFG_SER_CFG	0x84
> +#define HSIO_SERDES6G_DIG_CFG_MISC_CFG	0x88
> +#define		HSIO_SERDES6G_DIG_CFG_MISC_CFG_LANE_RST		BIT(0)
> +#define HSIO_MCB_SERDES6G_CFG		0xac
> +#define		HSIO_MCB_SERDES6G_CFG_WR_ONE_SHOT		BIT(31)
> +#define		HSIO_MCB_SERDES6G_CFG_ADDR(x)			(x)
> +
> +#define DEV_GMII_PORT_MODE_CLK		0x0
> +#define		DEV_GMII_PORT_MODE_CLK_PHY_RST	BIT(0)
> +#define DEV_GMII_MAC_CFG_MAC_ENA	0xc
> +#define		DEV_GMII_MAC_CFG_MAC_ENA_RX_ENA		BIT(4)
> +#define		DEV_GMII_MAC_CFG_MAC_ENA_TX_ENA		BIT(0)
> +
> +#define DEV_PORT_MODE_CLK		0x4
> +#define		DEV_PORT_MODE_CLK_PHY_RST		BIT(2)
> +#define		DEV_PORT_MODE_CLK_LINK_SPEED_1000	1
> +#define DEV_MAC_CFG_MAC_ENA		0x10
> +#define		DEV_MAC_CFG_MAC_ENA_RX_ENA		BIT(4)
> +#define		DEV_MAC_CFG_MAC_ENA_TX_ENA		BIT(0)
> +#define DEV_MAC_CFG_MAC_IFG		0x24
> +#define		DEV_MAC_CFG_MAC_IFG_TX_IFG(x)		((x) << 8)
> +#define		DEV_MAC_CFG_MAC_IFG_RX_IFG2(x)		((x) << 4)
> +#define		DEV_MAC_CFG_MAC_IFG_RX_IFG1(x)		(x)
> +#define DEV_PCS1G_CFG_PCS1G_CFG		0x40
> +#define		DEV_PCS1G_CFG_PCS1G_CFG_PCS_ENA		BIT(0)
> +#define DEV_PCS1G_CFG_PCS1G_MODE	0x44
> +#define DEV_PCS1G_CFG_PCS1G_SD		0x48
> +#define DEV_PCS1G_CFG_PCS1G_ANEG	0x4c
> +#define		DEV_PCS1G_CFG_PCS1G_ANEG_ADV_ABILITY(x)	((x) << 16)
> +
> +#define XTR_EOF_0     (0x80000000u)
> +#define XTR_EOF_1     (0x80000001u)
> +#define XTR_EOF_2     (0x80000002u)
> +#define XTR_EOF_3     (0x80000003u)
> +#define XTR_PRUNED    (0x80000004u)
> +#define XTR_ABORT     (0x80000005u)
> +#define XTR_ESCAPE    (0x80000006u)
> +#define XTR_NOT_READY (0x80000007u)
> +
> +#define IFH_INJ_BYPASS		BIT(31)
> +#define IFH_TAG_TYPE_C		0
> +#define XTR_VALID_BYTES(x)	(4 - ((x) & 3))
> +#define MAC_VID			1
> +#define CPU_PORT		26
> +#define INTERNAL_PORT_MSK	0xFFFFFF
> +#define IFH_LEN			2
> +#define LUTON_BUF_CELL_SZ	60
> +#define ETH_ALEN		6
> +#define PGID_BROADCAST		28
> +#define PGID_UNICAST		29
> +#define PGID_SRC		80
> +
> +enum luton_target {
> +	PORT0,
> +	PORT1,
> +	PORT2,
> +	PORT3,
> +	PORT4,
> +	PORT5,
> +	PORT6,
> +	PORT7,
> +	PORT8,
> +	PORT9,
> +	PORT10,
> +	PORT11,
> +	PORT12,
> +	PORT13,
> +	PORT14,
> +	PORT15,
> +	PORT16,
> +	PORT17,
> +	PORT18,
> +	PORT19,
> +	PORT20,
> +	PORT21,
> +	PORT22,
> +	PORT23,
> +	SYS,
> +	ANA,
> +	REW,
> +	GCB,
> +	QS,
> +	HSIO,
> +	TARGET_MAX,
> +};
> +
> +#define MAX_PORT (PORT23 - PORT0 + 1)
> +
> +#define MIN_INT_PORT PORT0
> +#define MAX_INT_PORT (PORT11 - PORT0  + 1)
> +#define MIN_EXT_PORT PORT12
> +#define MAX_EXT_PORT MAX_PORT
> +
> +/* MAC table entry types.
> + * ENTRYTYPE_NORMAL is subject to aging.
> + * ENTRYTYPE_LOCKED is not subject to aging.
> + */
> +enum macaccess_entry_type {
> +	ENTRYTYPE_NORMAL = 0,
> +	ENTRYTYPE_LOCKED,
> +};
> +
> +enum luton_mdio_target {
> +	MIIM,
> +	TARGET_MDIO_MAX,
> +};
> +
> +enum luton_phy_id {
> +	INTERNAL,
> +	EXTERNAL,
> +	NUM_PHY,
> +};
> +
> +struct luton_private {
> +	void __iomem *regs[TARGET_MAX];
> +	struct mii_dev *bus[NUM_PHY];
> +	struct luton_soc_data *data;
> +};
> +
> +struct mscc_miim_dev {
> +	void __iomem *regs;
> +	void __iomem *phy_regs;
> +};
> +
> +struct mscc_miim_dev miim[NUM_PHY];
> +
> +static int mscc_miim_wait_ready(struct mscc_miim_dev *miim)
> +{
> +	return wait_for_bit_le32(miim->regs + MIIM_STATUS, MIIM_STATUS_BUSY,
> +				 false, 250, false);
> +}
> +
> +static int mscc_miim_read(struct mii_dev *bus, int addr, int devad, int reg)
> +{
> +	struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
> +	u32 val;
> +	int ret;
> +
> +	ret = mscc_miim_wait_ready(miim);
> +	if (ret)
> +		goto out;
> +
> +	writel(MIIM_CMD_VLD | MIIM_CMD_PHYAD(addr) |
> +	       MIIM_CMD_REGAD(reg) | MIIM_CMD_OPR_READ,
> +	       miim->regs + MIIM_CMD);
> +
> +	ret = mscc_miim_wait_ready(miim);
> +	if (ret)
> +		goto out;
> +
> +	val = readl(miim->regs + MIIM_DATA);
> +	if (val & MIIM_DATA_ERROR) {
> +		ret = -EIO;
> +		goto out;
> +	}
> +
> +	ret = val & 0xFFFF;
> + out:
> +	return ret;
> +}
> +
> +static int mscc_miim_write(struct mii_dev *bus, int addr, int devad, int reg,
> +			   u16 val)
> +{
> +	struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
> +	int ret;
> +
> +	ret = mscc_miim_wait_ready(miim);
> +	if (ret < 0)
> +		goto out;
> +
> +	writel(MIIM_CMD_VLD | MIIM_CMD_PHYAD(addr) |
> +	       MIIM_CMD_REGAD(reg) | MIIM_CMD_WRDATA(val) |
> +	       MIIM_CMD_OPR_WRITE, miim->regs + MIIM_CMD);
> +
> + out:
> +	return ret;
> +}
> +
> +static struct mii_dev *luton_mdiobus_init(struct udevice *dev,
> +					  int mdiobus_id)
> +{
> +	unsigned long phy_size[NUM_PHY];
> +	phys_addr_t phy_base[NUM_PHY];
> +	struct ofnode_phandle_args phandle;
> +	ofnode eth_node, node, mdio_node;
> +	struct resource res;
> +	struct mii_dev *bus;
> +	fdt32_t faddr;
> +	int i;
> +
> +	bus = mdio_alloc();
> +	if (!bus)
> +		return NULL;
> +
> +	/* gather only the first mdio bus */
> +	eth_node = dev_read_first_subnode(dev);
> +	node = ofnode_first_subnode(eth_node);
> +	ofnode_parse_phandle_with_args(node, "phy-handle", NULL, 0, 0,
> +				       &phandle);
> +	mdio_node = ofnode_get_parent(phandle.node);
> +
> +	for (i = 0; i < TARGET_MDIO_MAX; i++) {
> +		if (ofnode_read_resource(mdio_node, i, &res)) {
> +			pr_err("%s: get OF resource failed\n", __func__);
> +			return NULL;
> +		}
> +
> +		faddr = cpu_to_fdt32(res.start);
> +		phy_base[i] = ofnode_translate_address(mdio_node, &faddr);
> +		phy_size[i] = res.end - res.start;
> +	}
> +
> +	strcpy(bus->name, "miim-internal");
> +	miim[mdiobus_id].regs = ioremap(phy_base[mdiobus_id],
> +					phy_size[mdiobus_id]);
> +	bus->priv = &miim[mdiobus_id];
> +	bus->read = mscc_miim_read;
> +	bus->write = mscc_miim_write;
> +
> +	if (mdio_register(bus))
> +		return NULL;
> +	else
> +		return bus;
> +}
> +
> +static void luton_cpu_capture_setup(struct luton_private *priv)
> +{
> +	int i;
> +
> +	/* map the 8 CPU extraction queues to CPU port 26 */
> +	writel(0x0, priv->regs[SYS] + SYS_SCH_CPU);
> +
> +	for (i = 0; i <= 1; i++) {
> +		/*
> +		 * One to one mapping from CPU Queue number to Group extraction
> +		 * number
> +		 */
> +		writel(QS_XTR_MAP_ENA | (QS_XTR_MAP_GRP * i),
> +		       priv->regs[QS] + QS_XTR_MAP(i));
> +
> +		/* Enable IFH insertion/parsing on CPU ports */
> +		setbits_le32(priv->regs[REW] + REW_PORT_CFG(CPU_PORT + i),
> +			     REW_PORT_CFG_IFH_INSERT_ENA);
> +
> +		/* Enable IFH parsing on CPU port 0 and 1 */
> +		setbits_le32(priv->regs[SYS] + SYS_PORT_MODE(CPU_PORT + i),
> +			     SYS_PORT_MODE_INCL_INJ_HDR);
> +	}
> +
> +	/* Make VLAN aware for CPU traffic */
> +	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
> +	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
> +	       MAC_VID,
> +	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(CPU_PORT));
> +
> +	/* Disable learning (only RECV_ENA must be set) */
> +	writel(ANA_PORT_PORT_CFG_RECV_ENA,
> +	       priv->regs[ANA] + ANA_PORT_PORT_CFG(CPU_PORT));
> +
> +	/* Enable switching to/from cpu port */
> +	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(CPU_PORT),
> +		     SYS_SWITCH_PORT_MODE_PORT_ENA);
> +
> +	setbits_le32(priv->regs[SYS] + SYS_EGR_NO_SHARING, BIT(CPU_PORT));
> +}
> +
> +static void luton_gmii_port_init(struct luton_private *priv, int port)
> +{
> +	void __iomem *regs = priv->regs[port];
> +
> +	writel(0, regs + DEV_GMII_PORT_MODE_CLK);
> +
> +	/* Enable MAC RX and TX */
> +	writel(DEV_GMII_MAC_CFG_MAC_ENA_RX_ENA |
> +	       DEV_GMII_MAC_CFG_MAC_ENA_TX_ENA,
> +	       regs + DEV_GMII_MAC_CFG_MAC_ENA);
> +
> +	/* Make VLAN aware for CPU traffic */
> +	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
> +	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
> +	       MAC_VID,
> +	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
> +
> +	/* Enable switching to/from port */
> +	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(port - PORT0),
> +		     SYS_SWITCH_PORT_MODE_PORT_ENA);
> +}
> +
> +static void luton_port_init(struct luton_private *priv, int port)
> +{
> +	void __iomem *regs = priv->regs[port];
> +
> +	writel(0, regs + DEV_PORT_MODE_CLK);
> +
> +	/* Enable MAC RX and TX */
> +	writel(DEV_MAC_CFG_MAC_ENA_RX_ENA |
> +	       DEV_MAC_CFG_MAC_ENA_TX_ENA,
> +	       regs + DEV_MAC_CFG_MAC_ENA);
> +
> +	/* Make VLAN aware for CPU traffic */
> +	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
> +	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
> +	       MAC_VID,
> +	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
> +
> +	/* Enable switching to/from port */
> +	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(port - PORT0),
> +		     SYS_SWITCH_PORT_MODE_PORT_ENA);
> +}
> +
> +static void luton_ext_port_init(struct luton_private *priv, int port)
> +{
> +	void __iomem *regs = priv->regs[port];
> +
> +	/* Enable PCS */
> +	writel(DEV_PCS1G_CFG_PCS1G_CFG_PCS_ENA,
> +	       regs + DEV_PCS1G_CFG_PCS1G_CFG);
> +
> +	/* Disable Signal Detect */
> +	writel(0, regs + DEV_PCS1G_CFG_PCS1G_SD);
> +
> +	/* Enable MAC RX and TX */
> +	writel(DEV_MAC_CFG_MAC_ENA_RX_ENA |
> +	       DEV_MAC_CFG_MAC_ENA_TX_ENA,
> +	       regs + DEV_MAC_CFG_MAC_ENA);
> +
> +	/* Clear sgmii_mode_ena */
> +	writel(0, regs + DEV_PCS1G_CFG_PCS1G_MODE);
> +
> +	/*
> +	 * Clear sw_resolve_ena(bit 0) and set adv_ability to
> +	 * something meaningful just in case
> +	 */
> +	writel(DEV_PCS1G_CFG_PCS1G_ANEG_ADV_ABILITY(0x20),
> +	       regs + DEV_PCS1G_CFG_PCS1G_ANEG);
> +
> +	/* Set MAC IFG Gaps */
> +	writel(DEV_MAC_CFG_MAC_IFG_TX_IFG(7) |
> +	       DEV_MAC_CFG_MAC_IFG_RX_IFG1(1) |
> +	       DEV_MAC_CFG_MAC_IFG_RX_IFG2(5),
> +	       regs + DEV_MAC_CFG_MAC_IFG);
> +
> +	/* Set link speed and release all resets */
> +	writel(DEV_PORT_MODE_CLK_LINK_SPEED_1000,
> +	       regs + DEV_PORT_MODE_CLK);
> +
> +	/* Make VLAN aware for CPU traffic */
> +	writel(ANA_PORT_VLAN_CFG_AWARE_ENA |
> +	       ANA_PORT_VLAN_CFG_POP_CNT(1) |
> +	       MAC_VID,
> +	       priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
> +
> +	/* Enable switching to/from port */
> +	setbits_le32(priv->regs[SYS] + SYS_SWITCH_PORT_MODE(port - PORT0),
> +		     SYS_SWITCH_PORT_MODE_PORT_ENA);
> +}
> +
> +static void serdes6g_write(struct luton_private *priv, u32 addr)
> +{
> +	u32 data;
> +
> +	writel(HSIO_MCB_SERDES6G_CFG_WR_ONE_SHOT |
> +	       HSIO_MCB_SERDES6G_CFG_ADDR(addr),
> +	       priv->regs[HSIO] + HSIO_MCB_SERDES6G_CFG);
> +
> +	do {
> +		data = readl(priv->regs[HSIO] + HSIO_MCB_SERDES6G_CFG);
> +	} while (data & HSIO_MCB_SERDES6G_CFG_WR_ONE_SHOT);
> +
> +	mdelay(100);
> +}
> +
> +static void serdes6g_cfg(struct luton_private *priv)
> +{
> +	writel(HSIO_RCOMP_CFG_CFG0_MODE_SEL(0x3) |
> +	       HSIO_RCOMP_CFG_CFG0_RUN_CAL,
> +	       priv->regs[HSIO] + HSIO_RCOMP_CFG_CFG0);
> +
> +	while (readl(priv->regs[HSIO] + HSIO_RCOMP_STATUS) &
> +	       HSIO_RCOMP_STATUS_BUSY)
> +		;
> +
> +	writel(HSIO_SERDES6G_ANA_CFG_OB_CFG_SR(0xb) |
> +	       HSIO_SERDES6G_ANA_CFG_OB_CFG_SR_H |
> +	       HSIO_SERDES6G_ANA_CFG_OB_CFG_POST0(0x10) |
> +	       HSIO_SERDES6G_ANA_CFG_OB_CFG_POL |
> +	       HSIO_SERDES6G_ANA_CFG_OB_CFG_ENA1V_MODE,
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_OB_CFG);
> +	writel(HSIO_SERDES6G_ANA_CFG_OB_CFG1_LEV(0x18) |
> +	       HSIO_SERDES6G_ANA_CFG_OB_CFG1_ENA_CAS(0x1),
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_OB_CFG1);
> +	writel(HSIO_SERDES6G_ANA_CFG_IB_CFG_RESISTOR_CTRL(0xc) |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG_VBCOM(0x4) |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG_VBAC(0x5) |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG_RT(0xf) |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG_RF(0x4),
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_IB_CFG);
> +	writel(HSIO_SERDES6G_ANA_CFG_IB_CFG1_RST |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSDC |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_ENA_OFFSAC |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_ANEG_MODE |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_CHF |
> +	       HSIO_SERDES6G_ANA_CFG_IB_CFG1_C(0x4),
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_IB_CFG1);
> +	writel(HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_ANA(0x5) |
> +	       HSIO_SERDES6G_ANA_CFG_DES_CFG_BW_HYST(0x5) |
> +	       HSIO_SERDES6G_ANA_CFG_DES_CFG_MBTR_CTRL(0x2) |
> +	       HSIO_SERDES6G_ANA_CFG_DES_CFG_PHS_CTRL(0x6),
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_DES_CFG);
> +	writel(HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_ENA |
> +	       HSIO_SERDES6G_ANA_CFG_PLL_CFG_FSM_CTRL_DATA(0x78),
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_PLL_CFG);
> +	writel(HSIO_SERDES6G_ANA_CFG_COMMON_CFG_IF_MODE(0x30) |
> +	       HSIO_SERDES6G_ANA_CFG_COMMON_CFG_ENA_LANE,
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_COMMON_CFG);
> +	/*
> +	 * There are 4 serdes6g, configure all except serdes6g0, therefore
> +	 * the address is b1110
> +	 */
> +	serdes6g_write(priv, 0xe);
> +
> +	writel(readl(priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_COMMON_CFG) |
> +	       HSIO_SERDES6G_ANA_CFG_COMMON_CFG_SYS_RST,
> +	       priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_COMMON_CFG);
> +	serdes6g_write(priv, 0xe);
> +
> +	clrbits_le32(priv->regs[HSIO] + HSIO_SERDES6G_ANA_CFG_IB_CFG1,
> +		     HSIO_SERDES6G_ANA_CFG_IB_CFG1_RST);
> +	writel(HSIO_SERDES6G_DIG_CFG_MISC_CFG_LANE_RST,
> +	       priv->regs[HSIO] + HSIO_SERDES6G_DIG_CFG_MISC_CFG);
> +	serdes6g_write(priv, 0xe);
> +}
> +
> +static int luton_switch_init(struct luton_private *priv)
> +{
> +	setbits_le32(priv->regs[HSIO] + HSIO_PLL5G_CFG_PLL5G_CFG2, BIT(1));
> +	clrbits_le32(priv->regs[HSIO] + HSIO_PLL5G_CFG_PLL5G_CFG2, BIT(1));
> +
> +	/* Reset switch & memories */
> +	writel(SYS_SYSTEM_RST_MEM_ENA | SYS_SYSTEM_RST_MEM_INIT,
> +	       priv->regs[SYS] + SYS_SYSTEM_RST_CFG);
> +
> +	/* Wait to complete */
> +	if (wait_for_bit_le32(priv->regs[SYS] + SYS_SYSTEM_RST_CFG,
> +			      SYS_SYSTEM_RST_MEM_INIT, false, 2000, false)) {
> +		printf("Timeout in memory reset\n");
> +	}
> +
> +	/* Enable switch core */
> +	setbits_le32(priv->regs[SYS] + SYS_SYSTEM_RST_CFG,
> +		     SYS_SYSTEM_RST_CORE_ENA);
> +
> +	/* Setup the Serdes6g macros */
> +	serdes6g_cfg(priv);
> +
> +	return 0;
> +}
> +
> +static void luton_switch_flush(struct luton_private *priv)
> +{
> +	/* All Queues flush */
> +	setbits_le32(priv->regs[QS] + QS_XTR_FLUSH, QS_XTR_FLUSH_FLUSH);
> +
> +	/* Allow to drain */
> +	mdelay(1);
> +
> +	/* All Queues normal */
> +	clrbits_le32(priv->regs[QS] + QS_XTR_FLUSH, QS_XTR_FLUSH_FLUSH);
> +}
> +
> +static int luton_initialize(struct luton_private *priv)
> +{
> +	int ret, i;
> +
> +	/* Initialize switch memories, enable core */
> +	ret = luton_switch_init(priv);
> +	if (ret)
> +		return ret;
> +
> +	/*
> +	 * Disable port-to-port by switching
> +	 * Put front ports in "port isolation modes" - i.e. they can't send
> +	 * to other ports - via the PGID sorce masks.
> +	 */
> +	for (i = 0; i < MAX_PORT; i++)
> +		writel(0, priv->regs[ANA] + ANA_PGID(PGID_SRC + i));
> +
> +	/* Flush queues */
> +	luton_switch_flush(priv);
> +
> +	/* Setup frame ageing - "2 sec" - The unit is 4ns on Luton*/
> +	writel(2000000000 / 4,
> +	       priv->regs[SYS] + SYS_FRM_AGING);
> +
> +	for (i = PORT0; i < MAX_PORT; i++) {
> +		if (i < PORT10)
> +			luton_gmii_port_init(priv, i);
> +		else
> +			if (i == PORT10 || i == PORT11)
> +				luton_port_init(priv, i);
> +			else
> +				luton_ext_port_init(priv, i);
> +	}
> +
> +	luton_cpu_capture_setup(priv);
> +
> +	return 0;
> +}
> +
> +static inline int luton_vlant_wait_for_completion(struct luton_private *priv)
> +{
> +	unsigned int val, timeout = 10;
> +
> +	/*
> +	 * Wait for the issued mac table command to be completed, or timeout.
> +	 * When the command read from ANA_TABLES_MACACCESS is
> +	 * MACACCESS_CMD_IDLE, the issued command completed successfully.
> +	 */
> +	do {
> +		val = readl(priv->regs[ANA] + ANA_TABLES_MACACCESS);
> +		val &= ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M;
> +	} while (val != MACACCESS_CMD_IDLE && timeout--);
> +
> +	if (!timeout)
> +		return -ETIMEDOUT;
> +
> +	return 0;
> +}
> +
> +static int luton_mac_table_add(struct luton_private *priv,
> +			       const unsigned char mac[ETH_ALEN], int pgid)
> +{
> +	u32 macl = 0, mach = 0;
> +	int ret;
> +
> +	/*
> +	 * Set the MAC address to handle and the vlan associated in a format
> +	 * understood by the hardware.
> +	 */
> +	mach |= MAC_VID << 16;
> +	mach |= ((u32)mac[0]) << 8;
> +	mach |= ((u32)mac[1]) << 0;
> +	macl |= ((u32)mac[2]) << 24;
> +	macl |= ((u32)mac[3]) << 16;
> +	macl |= ((u32)mac[4]) << 8;
> +	macl |= ((u32)mac[5]) << 0;
> +
> +	writel(macl, priv->regs[ANA] + ANA_TABLES_MACLDATA);
> +	writel(mach, priv->regs[ANA] + ANA_TABLES_MACHDATA);
> +
> +	writel(ANA_TABLES_MACACCESS_VALID |
> +	       ANA_TABLES_MACACCESS_DEST_IDX(pgid) |
> +	       ANA_TABLES_MACACCESS_ENTRYTYPE(ENTRYTYPE_LOCKED) |
> +	       ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN),
> +	       priv->regs[ANA] + ANA_TABLES_MACACCESS);
> +
> +	ret = luton_vlant_wait_for_completion(priv);
> +
> +	return ret;
> +}
> +
> +static int luton_write_hwaddr(struct udevice *dev)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +	struct eth_pdata *pdata = dev_get_platdata(dev);
> +
> +	luton_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST);
> +
> +	writel(BIT(CPU_PORT), priv->regs[ANA] + ANA_PGID(PGID_UNICAST));
> +
> +	return 0;
> +}
> +
> +static int luton_start(struct udevice *dev)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +	struct eth_pdata *pdata = dev_get_platdata(dev);
> +	const unsigned char mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff,
> +					      0xff };
> +	int ret;
> +
> +	ret = luton_initialize(priv);
> +	if (ret)
> +		return ret;
> +
> +	/* Set MAC address tables entries for CPU redirection */
> +	luton_mac_table_add(priv, mac, PGID_BROADCAST);
> +
> +	writel(BIT(CPU_PORT) | INTERNAL_PORT_MSK,
> +	       priv->regs[ANA] + ANA_PGID(PGID_BROADCAST));
> +
> +	luton_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST);
> +
> +	writel(BIT(CPU_PORT), priv->regs[ANA] + ANA_PGID(PGID_UNICAST));
> +
> +	return 0;
> +}
> +
> +static void luton_stop(struct udevice *dev)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +
> +	/*
> +	 * Switch core only reset affects VCORE-III bus and MIPS frequency
> +	 * and thereby also the DDR SDRAM controller. The workaround is to
> +	 * not to redirect any trafic to the CPU after the data transfer.
> +	 */
> +	writel(GENMASK(9, 2), priv->regs[SYS] + SYS_SCH_CPU);
> +}
> +
> +static int luton_send(struct udevice *dev, void *packet, int length)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +	u32 ifh[IFH_LEN];
> +	int port = BIT(0);	/* use port 0 */
> +	u8 grp = 0;		/* Send everything on CPU group 0 */
> +	int i, count = (length + 3) / 4, last = length % 4;
> +	u32 *buf = packet;
> +
> +	writel(QS_INJ_CTRL_GAP_SIZE(1) | QS_INJ_CTRL_SOF,
> +	       priv->regs[QS] + QS_INJ_CTRL(grp));
> +
> +	ifh[0] = IFH_INJ_BYPASS | port;
> +	ifh[1] = (IFH_TAG_TYPE_C << 16);
> +
> +	for (i = 0; i < IFH_LEN; i++)
> +		writel(ifh[i], priv->regs[QS] + QS_INJ_WR(grp));
> +
> +	for (i = 0; i < count; i++)
> +		writel(buf[i], priv->regs[QS] + QS_INJ_WR(grp));
> +
> +	/* Add padding */
> +	while (i < (LUTON_BUF_CELL_SZ / 4)) {
> +		writel(0, priv->regs[QS] + QS_INJ_WR(grp));
> +		i++;
> +	}
> +
> +	/* Indicate EOF and valid bytes in last word */
> +	writel(QS_INJ_CTRL_GAP_SIZE(1) |
> +	       QS_INJ_CTRL_VLD_BYTES(length < LUTON_BUF_CELL_SZ ? 0 : last) |
> +	       QS_INJ_CTRL_EOF, priv->regs[QS] + QS_INJ_CTRL(grp));
> +
> +	/* Add dummy CRC */
> +	writel(0, priv->regs[QS] + QS_INJ_WR(grp));
> +
> +	return 0;
> +}
> +
> +static int luton_recv(struct udevice *dev, int flags, uchar **packetp)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +	u8 grp = 0;		/* Recv everything on CPU group 0 */
> +	u32 *rxbuf = (u32 *)net_rx_packets[0];
> +	int byte_cnt = 0;
> +	int i = 0;
> +	bool eof_flag = false, pruned_flag = false, abort_flag = false;
> +
> +	if (!(readl(priv->regs[QS] + QS_XTR_DATA_PRESENT) & BIT(grp)))
> +		return -EAGAIN;
> +
> +	/* skip IFH */
> +	for (i = 0; i < IFH_LEN; i++)
> +		readl(priv->regs[QS] + QS_XTR_RD(grp));
> +
> +	while (!eof_flag) {
> +		u32 val = readl(priv->regs[QS] + QS_XTR_RD(grp));
> +
> +		switch (val) {
> +		case XTR_NOT_READY:
> +			debug("%d NOT_READY...?\n", byte_cnt);
> +			break;
> +		case XTR_ABORT:
> +			/* really nedeed?? not done in linux */
> +			*rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
> +			abort_flag = true;
> +			eof_flag = true;
> +			debug("XTR_ABORT\n");
> +			break;
> +		case XTR_EOF_0:
> +		case XTR_EOF_1:
> +		case XTR_EOF_2:
> +		case XTR_EOF_3:
> +			byte_cnt += XTR_VALID_BYTES(val);
> +			*rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
> +			eof_flag = true;
> +			debug("EOF\n");
> +			break;
> +		case XTR_PRUNED:
> +			/* But get the last 4 bytes as well */
> +			eof_flag = true;
> +			pruned_flag = true;
> +			debug("PRUNED\n");
> +			/* fallthrough */
> +		case XTR_ESCAPE:
> +			*rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
> +			byte_cnt += 4;
> +			rxbuf++;
> +			debug("ESCAPED\n");
> +			break;
> +		default:
> +			*rxbuf = val;
> +			byte_cnt += 4;
> +			rxbuf++;
> +		}
> +	}
> +
> +	if (abort_flag || pruned_flag || !eof_flag) {
> +		debug("Discarded frame: abort:%d pruned:%d eof:%d\n",
> +		      abort_flag, pruned_flag, eof_flag);
> +		return -EAGAIN;
> +	}
> +
> +	*packetp = net_rx_packets[0];
> +
> +	return byte_cnt;
> +}
> +
> +static int luton_probe(struct udevice *dev)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +	int i;
> +
> +	struct {
> +		enum luton_target id;
> +		char *name;
> +	} reg[] = {
> +		{ PORT0, "port0" },
> +		{ PORT1, "port1" },
> +		{ PORT2, "port2" },
> +		{ PORT3, "port3" },
> +		{ PORT4, "port4" },
> +		{ PORT5, "port5" },
> +		{ PORT6, "port6" },
> +		{ PORT7, "port7" },
> +		{ PORT8, "port8" },
> +		{ PORT9, "port9" },
> +		{ PORT10, "port10" },
> +		{ PORT11, "port11" },
> +		{ PORT12, "port12" },
> +		{ PORT13, "port13" },
> +		{ PORT14, "port14" },
> +		{ PORT15, "port15" },
> +		{ PORT16, "port16" },
> +		{ PORT17, "port17" },
> +		{ PORT18, "port18" },
> +		{ PORT19, "port19" },
> +		{ PORT20, "port20" },
> +		{ PORT21, "port21" },
> +		{ PORT22, "port22" },
> +		{ PORT23, "port23" },
> +		{ SYS, "sys" },
> +		{ ANA, "ana" },
> +		{ REW, "rew" },
> +		{ GCB, "gcb" },
> +		{ QS, "qs" },
> +		{ HSIO, "hsio" },
> +	};
> +
> +	if (!priv)
> +		return -EINVAL;
> +
> +	for (i = 0; i < ARRAY_SIZE(reg); i++) {
> +		priv->regs[reg[i].id] = dev_remap_addr_name(dev, reg[i].name);
> +		if (!priv->regs[reg[i].id]) {
> +			debug
> +			    ("Error can't get regs base addresses for %s\n",
> +			     reg[i].name);
> +			return -ENOMEM;
> +		}
> +	}
> +
> +	/* Release reset in the CU-PHY */
> +	writel(0, priv->regs[GCB] + GCB_DEVCPU_RST_SOFT_CHIP_RST);
> +
> +	/* Ports with ext phy don't need to reset clk */
> +	for (i = PORT0; i < MAX_INT_PORT; i++) {
> +		if (i < PORT10)
> +			clrbits_le32(priv->regs[i] + DEV_GMII_PORT_MODE_CLK,
> +				     DEV_GMII_PORT_MODE_CLK_PHY_RST);
> +		else
> +			clrbits_le32(priv->regs[i] + DEV_PORT_MODE_CLK,
> +				     DEV_PORT_MODE_CLK_PHY_RST);
> +	}
> +
> +	/* Wait for internal PHY to be ready */
> +	if (wait_for_bit_le32(priv->regs[GCB] + GCB_MISC_STAT,
> +			      GCB_MISC_STAT_PHY_READY, true, 500, false))
> +		return -EACCES;
> +
> +	priv->bus[INTERNAL] = luton_mdiobus_init(dev, INTERNAL);
> +
> +	for (i = 0; i < MAX_INT_PORT; i++) {
> +		phy_connect(priv->bus[INTERNAL], i, dev,
> +			    PHY_INTERFACE_MODE_NONE);
> +	}
> +
> +	/*
> +	 * coma_mode is need on only one phy, because all the other phys
> +	 * will be affected.
> +	 */
> +	mscc_miim_write(priv->bus[INTERNAL], 0, 0, 31, 0x10);
> +	mscc_miim_write(priv->bus[INTERNAL], 0, 0, 14, 0x800);
> +	mscc_miim_write(priv->bus[INTERNAL], 0, 0, 31, 0);
> +
> +	return 0;
> +}
> +
> +static int luton_remove(struct udevice *dev)
> +{
> +	struct luton_private *priv = dev_get_priv(dev);
> +	int i;
> +
> +	for (i = 0; i < NUM_PHY; i++) {
> +		mdio_unregister(priv->bus[i]);
> +		mdio_free(priv->bus[i]);
> +	}
> +
> +	return 0;
> +}
> +
> +static const struct eth_ops luton_ops = {
> +	.start        = luton_start,
> +	.stop         = luton_stop,
> +	.send         = luton_send,
> +	.recv         = luton_recv,
> +	.write_hwaddr = luton_write_hwaddr,
> +};
> +
> +static const struct udevice_id mscc_luton_ids[] = {
> +	{.compatible = "mscc,vsc7527-switch", },
> +	{ /* Sentinel */ }
> +};
> +
> +U_BOOT_DRIVER(luton) = {
> +	.name     = "luton-switch",
> +	.id       = UCLASS_ETH,
> +	.of_match = mscc_luton_ids,
> +	.probe	  = luton_probe,
> +	.remove	  = luton_remove,
> +	.ops	  = &luton_ops,
> +	.priv_auto_alloc_size = sizeof(struct luton_private),
> +	.platdata_auto_alloc_size = sizeof(struct eth_pdata),
> +};
> -- 
> 2.7.4
>

-- 
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com