[U-Boot] [PATCH 03/14] powerpc/fman: add dTSEC controller support

[Mingkai Hu <Mingkai.hu@freescale.com>]

From: Kumar Gala <galak@kernel.crashing.org>

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
---
 arch/powerpc/include/asm/fsl_enet.h |   12 ++
 drivers/net/fm/dtsec.c              |  168 +++++++++++++++++++++++
 drivers/net/fm/dtsec.h              |  251 +++++++++++++++++++++++++++++++++++
 3 files changed, 431 insertions(+), 0 deletions(-)
 create mode 100644 drivers/net/fm/dtsec.c
 create mode 100644 drivers/net/fm/dtsec.h

diff --git a/arch/powerpc/include/asm/fsl_enet.h b/arch/powerpc/include/asm/fsl_enet.h
index 9475249..f94482d 100644
--- a/arch/powerpc/include/asm/fsl_enet.h
+++ b/arch/powerpc/include/asm/fsl_enet.h
@@ -38,6 +38,18 @@ typedef struct tsec_mii_mng {
 	u32 ifstat;		/* Interface Status Register */
 } __attribute__ ((packed))tsec_mii_t;
 
+struct fsl_enet_mac {
+	void *base; /* MAC controller registers base address */
+	void *phyregs;
+	int max_rx_len;
+	void (*init_mac)(struct fsl_enet_mac *mac);
+	void (*enable_mac)(struct fsl_enet_mac *mac);
+	void (*disable_mac)(struct fsl_enet_mac *mac);
+	void (*set_mac_addr)(struct fsl_enet_mac *mac, u8 *mac_addr);
+	void (*set_if_mode)(struct fsl_enet_mac *mac, enum fsl_phy_enet_if type,
+				int speed);
+};
+
 int fdt_fixup_phy_connection(void *blob, int offset, enum fsl_phy_enet_if phyc);
 
 #endif /* __ASM_PPC_FSL_ENET_H */
diff --git a/drivers/net/fm/dtsec.c b/drivers/net/fm/dtsec.c
new file mode 100644
index 0000000..7c28217
--- /dev/null
+++ b/drivers/net/fm/dtsec.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *	Dave Liu <daveliu@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/types.h>
+#include <asm/io.h>
+#include <asm/fsl_enet.h>
+
+#include "dtsec.h"
+#include "../fsl_phy.h"
+
+static void dtsec_init_mac(struct fsl_enet_mac *mac)
+{
+	struct dtsec *regs = mac->base;
+
+	/* soft reset */
+	out_be32(&regs->maccfg1, MACCFG1_SOFT_RST);
+	udelay(1000);
+
+	/* clear soft reset, Rx/Tx MAC disable */
+	out_be32(&regs->maccfg1, 0);
+
+	/* graceful stop rx */
+	out_be32(&regs->rctrl, RCTRL_INIT);
+	udelay(1000);
+
+	/* graceful stop tx */
+	out_be32(&regs->tctrl, TCTRL_INIT);
+	udelay(1000);
+
+	/* disable all interrupts */
+	out_be32(&regs->imask, IMASK_MASK_ALL);
+
+	/* clear all events */
+	out_be32(&regs->ievent, IEVENT_CLEAR_ALL);
+
+	/* set the max Rx length */
+	out_be32(&regs->maxfrm, mac->max_rx_len);
+
+	/* set the ecntrl to reset value */
+	out_be32(&regs->ecntrl, ECNTRL_DEFAULT);
+
+	/* Rx length check, no strip CRC for Rx,
+	 * pad and append CRC for Tx, full duplex
+	 */
+	out_be32(&regs->maccfg2, MACCFG2_INIT);
+}
+
+static void dtsec_enable_mac(struct fsl_enet_mac *mac)
+{
+	struct dtsec *regs = mac->base;
+
+	/* enable Rx/Tx MAC */
+	setbits_be32(&regs->maccfg1, MACCFG1_RXTX_EN);
+
+	/* clear the graceful Rx stop */
+	clrbits_be32(&regs->rctrl, RCTRL_GRS);
+
+	/* clear the graceful Tx stop */
+	clrbits_be32(&regs->tctrl, TCTRL_GTS);
+}
+
+static void dtsec_disable_mac(struct fsl_enet_mac *mac)
+{
+	struct dtsec *regs = mac->base;
+
+	/* graceful Rx stop */
+	setbits_be32(&regs->rctrl, RCTRL_GRS);
+
+	/* graceful Tx stop */
+	setbits_be32(&regs->tctrl, TCTRL_GTS);
+
+	/* disable Rx/Tx MAC */
+	clrbits_be32(&regs->maccfg1, MACCFG1_RXTX_EN);
+}
+
+static void dtsec_set_mac_addr(struct fsl_enet_mac *mac, u8 *mac_addr)
+{
+	struct dtsec *regs = mac->base;
+	u32 mac_addr1, mac_addr2;
+
+	/* if a station address of 0x12345678ABCD, perform a write to
+	   MACSTNADDR1 of 0xCDAB7856,
+	   MACSTNADDR2 of 0x34120000 */
+
+	mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
+			(mac_addr[3] << 8)  | (mac_addr[2]);
+	out_be32(&regs->macstnaddr1, mac_addr1);
+
+	mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
+	out_be32(&regs->macstnaddr2, mac_addr2);
+}
+
+static void dtsec_set_interface_mode(struct fsl_enet_mac *mac, enum fsl_phy_enet_if type,
+					int speed)
+{
+	struct dtsec *regs = mac->base;
+	u32 ecntrl, maccfg2;
+
+	/* clear all bits relative with interface mode */
+	ecntrl = in_be32(&regs->ecntrl);
+	ecntrl &= ~(ECNTRL_TBIM | ECNTRL_GMIIM | ECNTRL_RPM |
+				  ECNTRL_R100M | ECNTRL_SGMIIM);
+
+	maccfg2 = in_be32(&regs->maccfg2);
+	maccfg2 &= ~MACCFG2_IF_MODE_MASK;
+
+	if (speed == SPEED_1000)
+		maccfg2 |= MACCFG2_IF_MODE_BYTE;
+	else
+		maccfg2 |= MACCFG2_IF_MODE_NIBBLE;
+
+	/* set interface mode */
+	switch (type) {
+	case GMII:
+		ecntrl |= ECNTRL_GMIIM;
+		break;
+	case RGMII:
+		ecntrl |= (ECNTRL_GMIIM | ECNTRL_RPM);
+		if (speed == SPEED_100)
+			ecntrl |= ECNTRL_R100M;
+		break;
+	case RMII:
+		if (speed == SPEED_100)
+			ecntrl |= ECNTRL_R100M;
+		break;
+	case SGMII:
+		ecntrl |= (ECNTRL_SGMIIM | ECNTRL_TBIM);
+		if (speed == SPEED_100)
+			ecntrl |= ECNTRL_R100M;
+		break;
+	default:
+		break;
+	}
+
+	out_be32(&regs->ecntrl, ecntrl);
+	out_be32(&regs->maccfg2, maccfg2);
+}
+
+void init_dtsec(struct fsl_enet_mac *mac, void *base,
+		void *phyregs, int max_rx_len)
+{
+	mac->base = base;
+	mac->phyregs = phyregs;
+	mac->max_rx_len = max_rx_len;
+	mac->init_mac = dtsec_init_mac;
+	mac->enable_mac = dtsec_enable_mac;
+	mac->disable_mac = dtsec_disable_mac;
+	mac->set_mac_addr = dtsec_set_mac_addr;
+	mac->set_if_mode = dtsec_set_interface_mode;
+}
diff --git a/drivers/net/fm/dtsec.h b/drivers/net/fm/dtsec.h
new file mode 100644
index 0000000..64339e0
--- /dev/null
+++ b/drivers/net/fm/dtsec.h
@@ -0,0 +1,251 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *	Dave Liu <daveliu@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __DTSEC_H__
+#define __DTSEC_H__
+
+#include <asm/types.h>
+#include <asm/fsl_enet.h>
+
+/* TBI register addresses */
+#define TBI_CR			0x00
+#define TBI_SR			0x01
+#define TBI_ANA			0x04
+#define TBI_ANLPBPA		0x05
+#define TBI_ANEX		0x06
+#define TBI_TBICON		0x11
+
+/* TBI MDIO register bit fields*/
+#define TBICON_CLK_SELECT	0x0020
+#define TBIANA_ASYMMETRIC_PAUSE 0x0100
+#define TBIANA_SYMMETRIC_PAUSE  0x0080
+#define TBIANA_HALF_DUPLEX	0x0040
+#define TBIANA_FULL_DUPLEX	0x0020
+#define TBICR_PHY_RESET		0x8000
+#define TBICR_ANEG_ENABLE	0x1000
+#define TBICR_RESTART_ANEG	0x0200
+#define TBICR_FULL_DUPLEX	0x0100
+#define TBICR_SPEED1_SET	0x0040
+
+/* IEVENT - interrupt events register */
+#define IEVENT_BABR	0x80000000 /* Babbling receive error */
+#define IEVENT_RXC	0x40000000 /* pause control frame received */
+#define IEVENT_MSRO	0x04000000 /* MIB counter overflow */
+#define IEVENT_GTSC	0x02000000 /* Graceful transmit stop complete */
+#define IEVENT_BABT	0x01000000 /* Babbling transmit error */
+#define IEVENT_TXC	0x00800000 /* control frame transmitted */
+#define IEVENT_TXE	0x00400000 /* Transmit channel error */
+#define IEVENT_LC	0x00040000 /* Late collision occurred */
+#define IEVENT_CRL	0x00020000 /* Collision retry exceed limit */
+#define IEVENT_XFUN	0x00010000 /* Transmit FIFO underrun */
+#define IEVENT_ABRT	0x00008000 /* Transmit packet abort */
+#define IEVENT_MMRD	0x00000400 /* MII management read complete */
+#define IEVENT_MMWR	0x00000200 /* MII management write complete */
+#define IEVENT_GRSC	0x00000100 /* Graceful stop complete */
+#define IEVENT_TDPE	0x00000002 /* Internal data parity error on Tx */
+#define IEVENT_RDPE	0x00000001 /* Internal data parity error on Rx */
+
+#define IEVENT_CLEAR_ALL	0xffffffff
+
+/* IMASK - interrupt mask register */
+#define IMASK_BREN	0x80000000 /* Babbling receive enable */
+#define IMASK_RXCEN	0x40000000 /* receive control enable */
+#define IMASK_MSROEN	0x04000000 /* MIB counter overflow enable */
+#define IMASK_GTSCEN	0x02000000 /* Graceful Tx stop complete enable */
+#define IMASK_BTEN	0x01000000 /* Babbling transmit error enable */
+#define IMASK_TXCEN	0x00800000 /* control frame transmitted enable */
+#define IMASK_TXEEN	0x00400000 /* Transmit channel error enable */
+#define IMASK_LCEN	0x00040000 /* Late collision interrupt enable */
+#define IMASK_CRLEN	0x00020000 /* Collision retry exceed limit */
+#define IMASK_XFUNEN	0x00010000 /* Transmit FIFO underrun enable */
+#define IMASK_ABRTEN	0x00008000 /* Transmit packet abort enable */
+#define IMASK_MMRDEN	0x00000400 /* MII management read complete enable */
+#define IMASK_MMWREN	0x00000200 /* MII management write complete enable */
+#define IMASK_GRSCEN	0x00000100 /* Graceful stop complete interrupt enable */
+#define IMASK_TDPEEN	0x00000002 /* Internal data parity error on Tx enable */
+#define IMASK_RDPEEN	0x00000001 /* Internal data parity error on Rx enable */
+
+#define IMASK_MASK_ALL	0x00000000
+
+/* ECNTRL - ethernet control register */
+#define ECNTRL_CFG_RO	0x80000000 /* GMIIM, RPM, R100M, SGMIIM bits are read-only */
+#define ECNTRL_CLRCNT	0x00004000 /* clear all statistics */
+#define ECNTRL_AUTOZ	0x00002000 /* auto zero MIB counter */
+#define ECNTRL_STEN	0x00001000 /* enable internal counters to update */
+#define ECNTRL_GMIIM	0x00000040 /* 1- GMII or RGMII interface mode */
+#define ECNTRL_RPM	0x00000010 /* 1- RGMII reduced-pin mode */
+#define ECNTRL_R100M	0x00000008 /* 1- RGMII 100 Mbps, SGMII 100 Mbps
+				      0- RGMII 10 Mbps, SGMII 10 Mbps */
+#define ECNTRL_SGMIIM	0x00000002 /* 1- SGMII interface mode */
+#define ECNTRL_TBIM	0x00000020 /* 1- TBI Interface mode (for SGMII) */
+
+#define ECNTRL_DEFAULT	0x0000002a
+
+/* TCTRL - Transmit control register */
+#define TCTRL_THDF	0x00000800 /* Transmit half-duplex flow control */
+#define TCTRL_TTSE	0x00000040 /* Transmit time-stamp enable */
+#define TCTRL_GTS	0x00000020 /* Graceful transmit stop */
+#define TCTRL_RFC_PAUSE	0x00000010 /* Receive flow control pause frame */
+
+#define TCTRL_INIT	TCTRL_GTS
+
+/* RCTRL - Receive control register */
+#define RCTRL_PAL_MASK	0x001f0000 /* packet alignment padding length */
+#define RCTRL_PAL_SHIFT	16
+#define RCTRL_CFA	0x00008000 /* control frame accept enable */
+#define RCTRL_GHTX	0x00000800 /* group address hash table extend */
+#define RCTRL_RTSE	0x00000040 /* receive 1588 time-stamp enable */
+#define RCTRL_GRS	0x00000020 /* graceful receive stop */
+#define RCTRL_BC_REJ	0x00000010 /* broadcast frame reject */
+#define RCTRL_BC_MPROM	0x00000008 /* all multicast/broadcast frames received */
+#define RCTRL_RSF	0x00000004 /* receive short frame(17~63 bytes) enable */
+#define RCTRL_EMEN	0x00000002 /* Exact match MAC address enable */
+#define RCTRL_UPROM	0x00000001 /* all unicast frame received */
+
+#define RCTRL_INIT	(RCTRL_GRS | RCTRL_UPROM)
+
+/* MACCFG1 - MAC configuration 1 register */
+#define MACCFG1_SOFT_RST	0x80000000 /* place the MAC in reset */
+#define MACCFG1_RST_RXMAC	0x00080000 /* reset receive MAC control block */
+#define MACCFG1_RST_TXMAC	0x00040000 /* reet transmit MAC control block */
+#define MACCFG1_RST_RXFUN	0x00020000 /* reset receive function block */
+#define MACCFG1_RST_TXFUN	0x00010000 /* reset transmit function block */
+#define MACCFG1_LOOPBACK	0x00000100 /* MAC loopback */
+#define MACCFG1_RX_FLOW		0x00000020 /* Receive flow */
+#define MACCFG1_TX_FLOW		0x00000010 /* Transmit flow */
+#define MACCFG1_SYNC_RXEN	0x00000008 /* Frame reception enabled */
+#define MACCFG1_RX_EN		0x00000004 /* Rx enable */
+#define MACCFG1_SYNC_TXEN	0x00000002 /* Frame transmission is enabled */
+#define MACCFG1_TX_EN		0x00000001 /* Tx enable */
+
+#define MACCFG1_RXTX_EN		(MACCFG1_RX_EN | MACCFG1_TX_EN)
+#define MACCFG1_INIT		MACCFG1_SOFT_RST
+
+/* MACCFG2 - MAC configuration 2 register */
+#define MACCFG2_PRE_LEN		0x0000f000 /* preamble length */
+#define MACCFG2_IF_MODE_MASK	0x00000300 /* 01 - Nibble mode, MII, 10/100 Mbps MII/RMII
+					      10 - Byte mode, GMII/TBI, 1000 GMII/TBI */
+#define MACCFG2_IF_MODE_NIBBLE	0x00000100
+#define MACCFG2_IF_MODE_BYTE	0x00000200
+#define MACCFG2_PRE_RX_EN	0x00000080 /* receive preamble enable */
+#define MACCFG2_PRE_TX_EN	0x00000040 /* enable user defined preamble for Tx */
+#define MACCFG2_HUGE_FRAME	0x00000020 /* huge frame enable (eq/gt maximum frame length) */
+#define MACCFG2_LEN_CHECK	0x00000010 /* MAC check frame's length field on Rx */
+#define MACCFG2_MAG_EN		0x00000008 /* magic packet enable */
+#define MACCFG2_PAD_CRC		0x00000004 /* pad and append CRC for transmitted short frame */
+#define MACCFG2_CRC_EN		0x00000002 /* MAC appends a CRC on all frames */
+#define MACCFG2_FULL_DUPLEX	0x00000001 /* The MAC operates in full deplex mode */
+
+#define MACCFG2_DEFAULT		0x00007000
+#define MACCFG2_INIT		(MACCFG2_DEFAULT | MACCFG2_LEN_CHECK | MACCFG2_PAD_CRC \
+				| MACCFG2_FULL_DUPLEX | MACCFG2_IF_MODE_NIBBLE)
+
+struct dtsec {
+	u32	tsec_id;	/* controller ID and version */
+	u32	tsec_id2;	/* controller ID and configuration */
+	u32	ievent;		/* interrupt event */
+	u32	imask;		/* interrupt mask */
+	u32	res0;
+	u32	ecntrl;		/* ethernet control and configuration */
+	u32	ptv;		/* pause time value */
+	u32	tbipa;		/* TBI PHY address */
+	u32	res1[8];
+	u32	tctrl;		/* Transmit control register */
+	u32	res2[3];
+	u32	rctrl;		/* Receive control register */
+	u32	res3[11];
+	u32	igaddr[8];	/* Individual group address */
+	u32	gaddr[8];	/* group address */
+	u32	res4[16];
+	u32	maccfg1;	/* MAC configuration register 1 */
+	u32	maccfg2;	/* MAC configuration register 2 */
+	u32	ipgifg;		/* inter-packet/inter-frame gap */
+	u32	hafdup;		/* half-duplex control */
+	u32	maxfrm;		/* Maximum frame size */
+	u32	res5[3];
+	u32	miimcfg;	/* MII management configuration */
+	u32	miimcom;	/* MII management command */
+	u32	miimadd;	/* MII management address */
+	u32	miimcon;	/* MII management control */
+	u32	miimstat;	/* MII management status */
+	u32	miimind;	/* MII management indicator */
+	u32	res6;
+	u32	ifstat;		/* Interface status */
+	u32	macstnaddr1;	/* MAC station address 1 */
+	u32	macstnaddr2;	/* MAC station address 2 */
+	u32	res7[46];
+	/* transmit and receive counter */
+	u32	tr64;		/* Tx and Rx 64 bytes frame */
+	u32	tr127;		/* Tx and Rx 65 to 127 bytes frame */
+	u32	tr255;		/* Tx and Rx 128 to 255 bytes frame */
+	u32	tr511;		/* Tx and Rx 256 to 511 bytes frame */
+	u32	tr1k;		/* Tx and Rx 512 to 1023 bytes frame */
+	u32	trmax;		/* Tx and Rx 1024 to 1518 bytes frame */
+	u32	trmgv;		/* Tx and Rx 1519 to 1522 good VLAN frame */
+	/* receive counters */
+	u32	rbyt;		/* Receive byte counter */
+	u32	rpkt;		/* Receive packet counter */
+	u32	rfcs;		/* Receive FCS error */
+	u32	rmca;		/* Receive multicast packet */
+	u32	rbca;		/* Receive broadcast packet */
+	u32	rxcf;		/* Receive control frame */
+	u32	rxpf;		/* Receive pause frame */
+	u32	rxuo;		/* Receive unknown OP code */
+	u32	raln;		/* Receive alignment error */
+	u32	rflr;		/* Receive frame length error */
+	u32	rcde;		/* Receive code error */
+	u32	rcse;		/* Receive carrier sense error */
+	u32	rund;		/* Receive undersize packet */
+	u32	rovr;		/* Receive oversize packet */
+	u32	rfrg;		/* Receive fragments counter */
+	u32	rjbr;		/* Receive jabber counter */
+	u32	rdrp;		/* Receive drop counter */
+	/* transmit counters */
+	u32	tbyt;		/* Transmit byte counter */
+	u32	tpkt;		/* Transmit packet */
+	u32	tmca;		/* Transmit multicast packet */
+	u32	tbca;		/* Transmit broadcast packet */
+	u32	txpf;		/* Transmit pause control frame */
+	u32	tdfr;		/* Transmit deferral packet */
+	u32	tedf;		/* Transmit excessive deferral pkt */
+	u32	tscl;		/* Transmit single collision pkt */
+	u32	tmcl;		/* Transmit multiple collision pkt */
+	u32	tlcl;		/* Transmit late collision pkt */
+	u32	txcl;		/* Transmit excessive collision */
+	u32	tncl;		/* Transmit total collision */
+	u32	res8;
+	u32	tdrp;		/* Transmit drop frame */
+	u32	tjbr;		/* Transmit jabber frame */
+	u32	tfcs;		/* Transmit FCS error */
+	u32	txcf;		/* Transmit control frame */
+	u32	tovr;		/* Transmit oversize frame */
+	u32	tund;		/* Transmit undersize frame */
+	u32	tfrg;		/* Transmit fragments frame */
+	/* counter controls */
+	u32	car1;		/* carry register 1 */
+	u32	car2;		/* carry register 2 */
+	u32	cam1;		/* carry register 1 mask */
+	u32	cam2;		/* carry register 2 mask */
+	u32	res9[80];
+} __attribute__ ((packed));
+
+void init_dtsec(struct fsl_enet_mac *mac, void *base, void *phyregs, int max_rx_len);
+
+#endif
-- 
1.6.4