--- /dev/null
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * 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>
+
+#if defined(CONFIG_MACB) && (CONFIG_COMMANDS & (CFG_CMD_NET | CFG_CMD_MII))
+
+/*
+ * The u-boot networking stack is a little weird. It seems like the
+ * networking core allocates receive buffers up front without any
+ * regard to the hardware that's supposed to actually receive those
+ * packets.
+ *
+ * The MACB receives packets into 128-byte receive buffers, so the
+ * buffers allocated by the core isn't very practical to use. We'll
+ * allocate our own, but we need one such buffer in case a packet
+ * wraps around the DMA ring so that we have to copy it.
+ *
+ * Therefore, define CFG_RX_ETH_BUFFER to 1 in the board-specific
+ * configuration header. This way, the core allocates one RX buffer
+ * and one TX buffer, each of which can hold a ethernet packet of
+ * maximum size.
+ *
+ * For some reason, the networking core unconditionally specifies a
+ * 32-byte packet "alignment" (which really should be called
+ * "padding"). MACB shouldn't need that, but we'll refrain from any
+ * core modifications here...
+ */
+
+#include <net.h>
+#include <malloc.h>
+
+#include <linux/mii.h>
+#include <asm/io.h>
+#include <asm/dma-mapping.h>
+#include <asm/arch/clk.h>
+
+#include "macb.h"
+
+#define CFG_MACB_RX_BUFFER_SIZE 4096
+#define CFG_MACB_RX_RING_SIZE (CFG_MACB_RX_BUFFER_SIZE / 128)
+#define CFG_MACB_TX_RING_SIZE 16
+#define CFG_MACB_TX_TIMEOUT 1000
+#define CFG_MACB_AUTONEG_TIMEOUT 5000000
+
+struct macb_dma_desc {
+ u32 addr;
+ u32 ctrl;
+};
+
+#define RXADDR_USED 0x00000001
+#define RXADDR_WRAP 0x00000002
+
+#define RXBUF_FRMLEN_MASK 0x00000fff
+#define RXBUF_FRAME_START 0x00004000
+#define RXBUF_FRAME_END 0x00008000
+#define RXBUF_TYPEID_MATCH 0x00400000
+#define RXBUF_ADDR4_MATCH 0x00800000
+#define RXBUF_ADDR3_MATCH 0x01000000
+#define RXBUF_ADDR2_MATCH 0x02000000
+#define RXBUF_ADDR1_MATCH 0x04000000
+#define RXBUF_BROADCAST 0x80000000
+
+#define TXBUF_FRMLEN_MASK 0x000007ff
+#define TXBUF_FRAME_END 0x00008000
+#define TXBUF_NOCRC 0x00010000
+#define TXBUF_EXHAUSTED 0x08000000
+#define TXBUF_UNDERRUN 0x10000000
+#define TXBUF_MAXRETRY 0x20000000
+#define TXBUF_WRAP 0x40000000
+#define TXBUF_USED 0x80000000
+
+struct macb_device {
+ void *regs;
+
+ unsigned int rx_tail;
+ unsigned int tx_head;
+ unsigned int tx_tail;
+
+ void *rx_buffer;
+ void *tx_buffer;
+ struct macb_dma_desc *rx_ring;
+ struct macb_dma_desc *tx_ring;
+
+ unsigned long rx_buffer_dma;
+ unsigned long rx_ring_dma;
+ unsigned long tx_ring_dma;
+
+ const struct device *dev;
+ struct eth_device netdev;
+ unsigned short phy_addr;
+};
+#define to_macb(_nd) container_of(_nd, struct macb_device, netdev)
+
+static void macb_mdio_write(struct macb_device *macb, u8 reg, u16 value)
+{
+ unsigned long netctl;
+ unsigned long netstat;
+ unsigned long frame;
+
+ netctl = macb_readl(macb, NCR);
+ netctl |= MACB_BIT(MPE);
+ macb_writel(macb, NCR, netctl);
+
+ frame = (MACB_BF(SOF, 1)
+ | MACB_BF(RW, 1)
+ | MACB_BF(PHYA, macb->phy_addr)
+ | MACB_BF(REGA, reg)
+ | MACB_BF(CODE, 2)
+ | MACB_BF(DATA, value));
+ macb_writel(macb, MAN, frame);
+
+ do {
+ netstat = macb_readl(macb, NSR);
+ } while (!(netstat & MACB_BIT(IDLE)));
+
+ netctl = macb_readl(macb, NCR);
+ netctl &= ~MACB_BIT(MPE);
+ macb_writel(macb, NCR, netctl);
+}
+
+static u16 macb_mdio_read(struct macb_device *macb, u8 reg)
+{
+ unsigned long netctl;
+ unsigned long netstat;
+ unsigned long frame;
+
+ netctl = macb_readl(macb, NCR);
+ netctl |= MACB_BIT(MPE);
+ macb_writel(macb, NCR, netctl);
+
+ frame = (MACB_BF(SOF, 1)
+ | MACB_BF(RW, 2)
+ | MACB_BF(PHYA, macb->phy_addr)
+ | MACB_BF(REGA, reg)
+ | MACB_BF(CODE, 2));
+ macb_writel(macb, MAN, frame);
+
+ do {
+ netstat = macb_readl(macb, NSR);
+ } while (!(netstat & MACB_BIT(IDLE)));
+
+ frame = macb_readl(macb, MAN);
+
+ netctl = macb_readl(macb, NCR);
+ netctl &= ~MACB_BIT(MPE);
+ macb_writel(macb, NCR, netctl);
+
+ return MACB_BFEXT(DATA, frame);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+static int macb_send(struct eth_device *netdev, volatile void *packet,
+ int length)
+{
+ struct macb_device *macb = to_macb(netdev);
+ unsigned long paddr, ctrl;
+ unsigned int tx_head = macb->tx_head;
+ int i;
+
+ paddr = dma_map_single(packet, length, DMA_TO_DEVICE);
+
+ ctrl = length & TXBUF_FRMLEN_MASK;
+ ctrl |= TXBUF_FRAME_END;
+ if (tx_head == (CFG_MACB_TX_RING_SIZE - 1)) {
+ ctrl |= TXBUF_WRAP;
+ macb->tx_head = 0;
+ } else
+ macb->tx_head++;
+
+ macb->tx_ring[tx_head].ctrl = ctrl;
+ macb->tx_ring[tx_head].addr = paddr;
+ macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE) | MACB_BIT(TSTART));
+
+ /*
+ * I guess this is necessary because the networking core may
+ * re-use the transmit buffer as soon as we return...
+ */
+ i = 0;
+ while (!(macb->tx_ring[tx_head].ctrl & TXBUF_USED)) {
+ if (i > CFG_MACB_TX_TIMEOUT) {
+ printf("%s: TX timeout\n", netdev->name);
+ break;
+ }
+ udelay(1);
+ i++;
+ }
+
+ dma_unmap_single(packet, length, paddr);
+
+ if (i <= CFG_MACB_TX_TIMEOUT) {
+ ctrl = macb->tx_ring[tx_head].ctrl;
+ if (ctrl & TXBUF_UNDERRUN)
+ printf("%s: TX underrun\n", netdev->name);
+ if (ctrl & TXBUF_EXHAUSTED)
+ printf("%s: TX buffers exhausted in mid frame\n",
+ netdev->name);
+ }
+
+ /* No one cares anyway */
+ return 0;
+}
+
+static void reclaim_rx_buffers(struct macb_device *macb,
+ unsigned int new_tail)
+{
+ unsigned int i;
+
+ i = macb->rx_tail;
+ while (i > new_tail) {
+ macb->rx_ring[i].addr &= ~RXADDR_USED;
+ i++;
+ if (i > CFG_MACB_RX_RING_SIZE)
+ i = 0;
+ }
+
+ while (i < new_tail) {
+ macb->rx_ring[i].addr &= ~RXADDR_USED;
+ i++;
+ }
+
+ macb->rx_tail = new_tail;
+}
+
+static int macb_recv(struct eth_device *netdev)
+{
+ struct macb_device *macb = to_macb(netdev);
+ unsigned int rx_tail = macb->rx_tail;
+ void *buffer;
+ int length;
+ int wrapped = 0;
+ u32 status;
+
+ for (;;) {
+ if (!(macb->rx_ring[rx_tail].addr & RXADDR_USED))
+ return -1;
+
+ status = macb->rx_ring[rx_tail].ctrl;
+ if (status & RXBUF_FRAME_START) {
+ if (rx_tail != macb->rx_tail)
+ reclaim_rx_buffers(macb, rx_tail);
+ wrapped = 0;
+ }
+
+ if (status & RXBUF_FRAME_END) {
+ buffer = macb->rx_buffer + 128 * macb->rx_tail;
+ length = status & RXBUF_FRMLEN_MASK;
+ if (wrapped) {
+ unsigned int headlen, taillen;
+
+ headlen = 128 * (CFG_MACB_RX_RING_SIZE
+ - macb->rx_tail);
+ taillen = length - headlen;
+ memcpy((void *)NetRxPackets[0],
+ buffer, headlen);
+ memcpy((void *)NetRxPackets[0] + headlen,
+ macb->rx_buffer, taillen);
+ buffer = (void *)NetRxPackets[0];
+ }
+
+ NetReceive(buffer, length);
+ if (++rx_tail >= CFG_MACB_RX_RING_SIZE)
+ rx_tail = 0;
+ reclaim_rx_buffers(macb, rx_tail);
+ } else {
+ if (++rx_tail >= CFG_MACB_RX_RING_SIZE) {
+ wrapped = 1;
+ rx_tail = 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int macb_phy_init(struct macb_device *macb)
+{
+ struct eth_device *netdev = &macb->netdev;
+ u32 ncfgr;
+ u16 phy_id, status, adv, lpa;
+ int media, speed, duplex;
+ int i;
+
+ /* Check if the PHY is up to snuff... */
+ phy_id = macb_mdio_read(macb, MII_PHYSID1);
+ if (phy_id == 0xffff) {
+ printf("%s: No PHY present\n", netdev->name);
+ return 0;
+ }
+
+ adv = ADVERTISE_CSMA | ADVERTISE_ALL;
+ macb_mdio_write(macb, MII_ADVERTISE, adv);
+ printf("%s: Starting autonegotiation...\n", netdev->name);
+ macb_mdio_write(macb, MII_BMCR, (BMCR_ANENABLE
+ | BMCR_ANRESTART));
+
+#if 0
+ for (i = 0; i < 9; i++)
+ printf("mii%d: 0x%04x\n", i, macb_mdio_read(macb, i));
+#endif
+
+ for (i = 0; i < CFG_MACB_AUTONEG_TIMEOUT / 100; i++) {
+ status = macb_mdio_read(macb, MII_BMSR);
+ if (status & BMSR_ANEGCOMPLETE)
+ break;
+ udelay(100);
+ }
+
+ if (status & BMSR_ANEGCOMPLETE)
+ printf("%s: Autonegotiation complete\n", netdev->name);
+ else
+ printf("%s: Autonegotiation timed out (status=0x%04x)\n",
+ netdev->name, status);
+
+ if (!(status & BMSR_LSTATUS)) {
+ for (i = 0; i < CFG_MACB_AUTONEG_TIMEOUT / 100; i++) {
+ udelay(100);
+ status = macb_mdio_read(macb, MII_BMSR);
+ if (status & BMSR_LSTATUS)
+ break;
+ }
+ }
+
+ if (!(status & BMSR_LSTATUS)) {
+ printf("%s: link down (status: 0x%04x)\n",
+ netdev->name, status);
+ return 0;
+ } else {
+ lpa = macb_mdio_read(macb, MII_LPA);
+ media = mii_nway_result(lpa & adv);
+ speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)
+ ? 1 : 0);
+ duplex = (media & ADVERTISE_FULL) ? 1 : 0;
+ printf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n",
+ netdev->name,
+ speed ? "100" : "10",
+ duplex ? "full" : "half",
+ lpa);
+
+ ncfgr = macb_readl(macb, NCFGR);
+ ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD));
+ if (speed)
+ ncfgr |= MACB_BIT(SPD);
+ if (duplex)
+ ncfgr |= MACB_BIT(FD);
+ macb_writel(macb, NCFGR, ncfgr);
+ return 1;
+ }
+}
+
+static int macb_init(struct eth_device *netdev, bd_t *bd)
+{
+ struct macb_device *macb = to_macb(netdev);
+ unsigned long paddr;
+ u32 hwaddr_bottom;
+ u16 hwaddr_top;
+ int i;
+
+ /*
+ * macb_halt should have been called at some point before now,
+ * so we'll assume the controller is idle.
+ */
+
+ /* initialize DMA descriptors */
+ paddr = macb->rx_buffer_dma;
+ for (i = 0; i < CFG_MACB_RX_RING_SIZE; i++) {
+ if (i == (CFG_MACB_RX_RING_SIZE - 1))
+ paddr |= RXADDR_WRAP;
+ macb->rx_ring[i].addr = paddr;
+ macb->rx_ring[i].ctrl = 0;
+ paddr += 128;
+ }
+ for (i = 0; i < CFG_MACB_TX_RING_SIZE; i++) {
+ macb->tx_ring[i].addr = 0;
+ if (i == (CFG_MACB_TX_RING_SIZE - 1))
+ macb->tx_ring[i].ctrl = TXBUF_USED | TXBUF_WRAP;
+ else
+ macb->tx_ring[i].ctrl = TXBUF_USED;
+ }
+ macb->rx_tail = macb->tx_head = macb->tx_tail = 0;
+
+ macb_writel(macb, RBQP, macb->rx_ring_dma);
+ macb_writel(macb, TBQP, macb->tx_ring_dma);
+
+ /* set hardware address */
+ hwaddr_bottom = cpu_to_le32(*((u32 *)netdev->enetaddr));
+ macb_writel(macb, SA1B, hwaddr_bottom);
+ hwaddr_top = cpu_to_le16(*((u16 *)(netdev->enetaddr + 4)));
+ macb_writel(macb, SA1T, hwaddr_top);
+
+ /* choose RMII or MII mode. This depends on the board */
+#ifdef CONFIG_RMII
+ macb_writel(macb, USRIO, 0);
+#else
+ macb_writel(macb, USRIO, MACB_BIT(MII));
+#endif
+
+ if (!macb_phy_init(macb))
+ return 0;
+
+ /* Enable TX and RX */
+ macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE));
+
+ return 1;
+}
+
+static void macb_halt(struct eth_device *netdev)
+{
+ struct macb_device *macb = to_macb(netdev);
+ u32 ncr, tsr;
+
+ /* Halt the controller and wait for any ongoing transmission to end. */
+ ncr = macb_readl(macb, NCR);
+ ncr |= MACB_BIT(THALT);
+ macb_writel(macb, NCR, ncr);
+
+ do {
+ tsr = macb_readl(macb, TSR);
+ } while (tsr & MACB_BIT(TGO));
+
+ /* Disable TX and RX, and clear statistics */
+ macb_writel(macb, NCR, MACB_BIT(CLRSTAT));
+}
+
+int macb_eth_initialize(int id, void *regs, unsigned int phy_addr)
+{
+ struct macb_device *macb;
+ struct eth_device *netdev;
+ unsigned long macb_hz;
+ u32 ncfgr;
+
+ macb = malloc(sizeof(struct macb_device));
+ if (!macb) {
+ printf("Error: Failed to allocate memory for MACB%d\n", id);
+ return -1;
+ }
+ memset(macb, 0, sizeof(struct macb_device));
+
+ netdev = &macb->netdev;
+
+ macb->rx_buffer = dma_alloc_coherent(CFG_MACB_RX_BUFFER_SIZE,
+ &macb->rx_buffer_dma);
+ macb->rx_ring = dma_alloc_coherent(CFG_MACB_RX_RING_SIZE
+ * sizeof(struct macb_dma_desc),
+ &macb->rx_ring_dma);
+ macb->tx_ring = dma_alloc_coherent(CFG_MACB_TX_RING_SIZE
+ * sizeof(struct macb_dma_desc),
+ &macb->tx_ring_dma);
+
+ macb->regs = regs;
+ macb->phy_addr = phy_addr;
+
+ sprintf(netdev->name, "macb%d", id);
+ netdev->init = macb_init;
+ netdev->halt = macb_halt;
+ netdev->send = macb_send;
+ netdev->recv = macb_recv;
+
+ /*
+ * Do some basic initialization so that we at least can talk
+ * to the PHY
+ */
+ macb_hz = get_macb_pclk_rate(id);
+ if (macb_hz < 20000000)
+ ncfgr = MACB_BF(CLK, MACB_CLK_DIV8);
+ else if (macb_hz < 40000000)
+ ncfgr = MACB_BF(CLK, MACB_CLK_DIV16);
+ else if (macb_hz < 80000000)
+ ncfgr = MACB_BF(CLK, MACB_CLK_DIV32);
+ else
+ ncfgr = MACB_BF(CLK, MACB_CLK_DIV64);
+
+ macb_writel(macb, NCFGR, ncfgr);
+
+ eth_register(netdev);
+
+ return 0;
+}
+
+#endif /* (CONFIG_COMMANDS & CFG_CMD_NET) */
+
+#if (CONFIG_COMMANDS & CFG_CMD_MII)
+
+int miiphy_read(unsigned char addr, unsigned char reg, unsigned short *value)
+{
+ unsigned long netctl;
+ unsigned long netstat;
+ unsigned long frame;
+ int iflag;
+
+ iflag = disable_interrupts();
+ netctl = macb_readl(&macb, EMACB_NCR);
+ netctl |= MACB_BIT(MPE);
+ macb_writel(&macb, EMACB_NCR, netctl);
+ if (iflag)
+ enable_interrupts();
+
+ frame = (MACB_BF(SOF, 1)
+ | MACB_BF(RW, 2)
+ | MACB_BF(PHYA, addr)
+ | MACB_BF(REGA, reg)
+ | MACB_BF(CODE, 2));
+ macb_writel(&macb, EMACB_MAN, frame);
+
+ do {
+ netstat = macb_readl(&macb, EMACB_NSR);
+ } while (!(netstat & MACB_BIT(IDLE)));
+
+ frame = macb_readl(&macb, EMACB_MAN);
+ *value = MACB_BFEXT(DATA, frame);
+
+ iflag = disable_interrupts();
+ netctl = macb_readl(&macb, EMACB_NCR);
+ netctl &= ~MACB_BIT(MPE);
+ macb_writel(&macb, EMACB_NCR, netctl);
+ if (iflag)
+ enable_interrupts();
+
+ return 0;
+}
+
+int miiphy_write(unsigned char addr, unsigned char reg, unsigned short value)
+{
+ unsigned long netctl;
+ unsigned long netstat;
+ unsigned long frame;
+ int iflag;
+
+ iflag = disable_interrupts();
+ netctl = macb_readl(&macb, EMACB_NCR);
+ netctl |= MACB_BIT(MPE);
+ macb_writel(&macb, EMACB_NCR, netctl);
+ if (iflag)
+ enable_interrupts();
+
+ frame = (MACB_BF(SOF, 1)
+ | MACB_BF(RW, 1)
+ | MACB_BF(PHYA, addr)
+ | MACB_BF(REGA, reg)
+ | MACB_BF(CODE, 2)
+ | MACB_BF(DATA, value));
+ macb_writel(&macb, EMACB_MAN, frame);
+
+ do {
+ netstat = macb_readl(&macb, EMACB_NSR);
+ } while (!(netstat & MACB_BIT(IDLE)));
+
+ iflag = disable_interrupts();
+ netctl = macb_readl(&macb, EMACB_NCR);
+ netctl &= ~MACB_BIT(MPE);
+ macb_writel(&macb, EMACB_NCR, netctl);
+ if (iflag)
+ enable_interrupts();
+
+ return 0;
+}
+
+#endif /* (CONFIG_COMMANDS & CFG_CMD_MII) */
+
+#endif /* CONFIG_MACB */
--- /dev/null
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 __DRIVERS_MACB_H__
+#define __DRIVERS_MACB_H__
+
+/* MACB register offsets */
+#define MACB_NCR 0x0000
+#define MACB_NCFGR 0x0004
+#define MACB_NSR 0x0008
+#define MACB_TSR 0x0014
+#define MACB_RBQP 0x0018
+#define MACB_TBQP 0x001c
+#define MACB_RSR 0x0020
+#define MACB_ISR 0x0024
+#define MACB_IER 0x0028
+#define MACB_IDR 0x002c
+#define MACB_IMR 0x0030
+#define MACB_MAN 0x0034
+#define MACB_PTR 0x0038
+#define MACB_PFR 0x003c
+#define MACB_FTO 0x0040
+#define MACB_SCF 0x0044
+#define MACB_MCF 0x0048
+#define MACB_FRO 0x004c
+#define MACB_FCSE 0x0050
+#define MACB_ALE 0x0054
+#define MACB_DTF 0x0058
+#define MACB_LCOL 0x005c
+#define MACB_EXCOL 0x0060
+#define MACB_TUND 0x0064
+#define MACB_CSE 0x0068
+#define MACB_RRE 0x006c
+#define MACB_ROVR 0x0070
+#define MACB_RSE 0x0074
+#define MACB_ELE 0x0078
+#define MACB_RJA 0x007c
+#define MACB_USF 0x0080
+#define MACB_STE 0x0084
+#define MACB_RLE 0x0088
+#define MACB_TPF 0x008c
+#define MACB_HRB 0x0090
+#define MACB_HRT 0x0094
+#define MACB_SA1B 0x0098
+#define MACB_SA1T 0x009c
+#define MACB_SA2B 0x00a0
+#define MACB_SA2T 0x00a4
+#define MACB_SA3B 0x00a8
+#define MACB_SA3T 0x00ac
+#define MACB_SA4B 0x00b0
+#define MACB_SA4T 0x00b4
+#define MACB_TID 0x00b8
+#define MACB_TPQ 0x00bc
+#define MACB_USRIO 0x00c0
+#define MACB_WOL 0x00c4
+
+/* Bitfields in NCR */
+#define MACB_LB_OFFSET 0
+#define MACB_LB_SIZE 1
+#define MACB_LLB_OFFSET 1
+#define MACB_LLB_SIZE 1
+#define MACB_RE_OFFSET 2
+#define MACB_RE_SIZE 1
+#define MACB_TE_OFFSET 3
+#define MACB_TE_SIZE 1
+#define MACB_MPE_OFFSET 4
+#define MACB_MPE_SIZE 1
+#define MACB_CLRSTAT_OFFSET 5
+#define MACB_CLRSTAT_SIZE 1
+#define MACB_INCSTAT_OFFSET 6
+#define MACB_INCSTAT_SIZE 1
+#define MACB_WESTAT_OFFSET 7
+#define MACB_WESTAT_SIZE 1
+#define MACB_BP_OFFSET 8
+#define MACB_BP_SIZE 1
+#define MACB_TSTART_OFFSET 9
+#define MACB_TSTART_SIZE 1
+#define MACB_THALT_OFFSET 10
+#define MACB_THALT_SIZE 1
+#define MACB_NCR_TPF_OFFSET 11
+#define MACB_NCR_TPF_SIZE 1
+#define MACB_TZQ_OFFSET 12
+#define MACB_TZQ_SIZE 1
+
+/* Bitfields in NCFGR */
+#define MACB_SPD_OFFSET 0
+#define MACB_SPD_SIZE 1
+#define MACB_FD_OFFSET 1
+#define MACB_FD_SIZE 1
+#define MACB_BIT_RATE_OFFSET 2
+#define MACB_BIT_RATE_SIZE 1
+#define MACB_JFRAME_OFFSET 3
+#define MACB_JFRAME_SIZE 1
+#define MACB_CAF_OFFSET 4
+#define MACB_CAF_SIZE 1
+#define MACB_NBC_OFFSET 5
+#define MACB_NBC_SIZE 1
+#define MACB_NCFGR_MTI_OFFSET 6
+#define MACB_NCFGR_MTI_SIZE 1
+#define MACB_UNI_OFFSET 7
+#define MACB_UNI_SIZE 1
+#define MACB_BIG_OFFSET 8
+#define MACB_BIG_SIZE 1
+#define MACB_EAE_OFFSET 9
+#define MACB_EAE_SIZE 1
+#define MACB_CLK_OFFSET 10
+#define MACB_CLK_SIZE 2
+#define MACB_RTY_OFFSET 12
+#define MACB_RTY_SIZE 1
+#define MACB_PAE_OFFSET 13
+#define MACB_PAE_SIZE 1
+#define MACB_RBOF_OFFSET 14
+#define MACB_RBOF_SIZE 2
+#define MACB_RLCE_OFFSET 16
+#define MACB_RLCE_SIZE 1
+#define MACB_DRFCS_OFFSET 17
+#define MACB_DRFCS_SIZE 1
+#define MACB_EFRHD_OFFSET 18
+#define MACB_EFRHD_SIZE 1
+#define MACB_IRXFCS_OFFSET 19
+#define MACB_IRXFCS_SIZE 1
+
+/* Bitfields in NSR */
+#define MACB_NSR_LINK_OFFSET 0
+#define MACB_NSR_LINK_SIZE 1
+#define MACB_MDIO_OFFSET 1
+#define MACB_MDIO_SIZE 1
+#define MACB_IDLE_OFFSET 2
+#define MACB_IDLE_SIZE 1
+
+/* Bitfields in TSR */
+#define MACB_UBR_OFFSET 0
+#define MACB_UBR_SIZE 1
+#define MACB_COL_OFFSET 1
+#define MACB_COL_SIZE 1
+#define MACB_TSR_RLE_OFFSET 2
+#define MACB_TSR_RLE_SIZE 1
+#define MACB_TGO_OFFSET 3
+#define MACB_TGO_SIZE 1
+#define MACB_BEX_OFFSET 4
+#define MACB_BEX_SIZE 1
+#define MACB_COMP_OFFSET 5
+#define MACB_COMP_SIZE 1
+#define MACB_UND_OFFSET 6
+#define MACB_UND_SIZE 1
+
+/* Bitfields in RSR */
+#define MACB_BNA_OFFSET 0
+#define MACB_BNA_SIZE 1
+#define MACB_REC_OFFSET 1
+#define MACB_REC_SIZE 1
+#define MACB_OVR_OFFSET 2
+#define MACB_OVR_SIZE 1
+
+/* Bitfields in ISR/IER/IDR/IMR */
+#define MACB_MFD_OFFSET 0
+#define MACB_MFD_SIZE 1
+#define MACB_RCOMP_OFFSET 1
+#define MACB_RCOMP_SIZE 1
+#define MACB_RXUBR_OFFSET 2
+#define MACB_RXUBR_SIZE 1
+#define MACB_TXUBR_OFFSET 3
+#define MACB_TXUBR_SIZE 1
+#define MACB_ISR_TUND_OFFSET 4
+#define MACB_ISR_TUND_SIZE 1
+#define MACB_ISR_RLE_OFFSET 5
+#define MACB_ISR_RLE_SIZE 1
+#define MACB_TXERR_OFFSET 6
+#define MACB_TXERR_SIZE 1
+#define MACB_TCOMP_OFFSET 7
+#define MACB_TCOMP_SIZE 1
+#define MACB_ISR_LINK_OFFSET 9
+#define MACB_ISR_LINK_SIZE 1
+#define MACB_ISR_ROVR_OFFSET 10
+#define MACB_ISR_ROVR_SIZE 1
+#define MACB_HRESP_OFFSET 11
+#define MACB_HRESP_SIZE 1
+#define MACB_PFR_OFFSET 12
+#define MACB_PFR_SIZE 1
+#define MACB_PTZ_OFFSET 13
+#define MACB_PTZ_SIZE 1
+
+/* Bitfields in MAN */
+#define MACB_DATA_OFFSET 0
+#define MACB_DATA_SIZE 16
+#define MACB_CODE_OFFSET 16
+#define MACB_CODE_SIZE 2
+#define MACB_REGA_OFFSET 18
+#define MACB_REGA_SIZE 5
+#define MACB_PHYA_OFFSET 23
+#define MACB_PHYA_SIZE 5
+#define MACB_RW_OFFSET 28
+#define MACB_RW_SIZE 2
+#define MACB_SOF_OFFSET 30
+#define MACB_SOF_SIZE 2
+
+/* Bitfields in USRIO */
+#define MACB_MII_OFFSET 0
+#define MACB_MII_SIZE 1
+#define MACB_EAM_OFFSET 1
+#define MACB_EAM_SIZE 1
+#define MACB_TX_PAUSE_OFFSET 2
+#define MACB_TX_PAUSE_SIZE 1
+#define MACB_TX_PAUSE_ZERO_OFFSET 3
+#define MACB_TX_PAUSE_ZERO_SIZE 1
+
+/* Bitfields in WOL */
+#define MACB_IP_OFFSET 0
+#define MACB_IP_SIZE 16
+#define MACB_MAG_OFFSET 16
+#define MACB_MAG_SIZE 1
+#define MACB_ARP_OFFSET 17
+#define MACB_ARP_SIZE 1
+#define MACB_SA1_OFFSET 18
+#define MACB_SA1_SIZE 1
+#define MACB_WOL_MTI_OFFSET 19
+#define MACB_WOL_MTI_SIZE 1
+
+/* Constants for CLK */
+#define MACB_CLK_DIV8 0
+#define MACB_CLK_DIV16 1
+#define MACB_CLK_DIV32 2
+#define MACB_CLK_DIV64 3
+
+/* Constants for MAN register */
+#define MACB_MAN_SOF 1
+#define MACB_MAN_WRITE 1
+#define MACB_MAN_READ 2
+#define MACB_MAN_CODE 2
+
+/* Bit manipulation macros */
+#define MACB_BIT(name) \
+ (1 << MACB_##name##_OFFSET)
+#define MACB_BF(name,value) \
+ (((value) & ((1 << MACB_##name##_SIZE) - 1)) \
+ << MACB_##name##_OFFSET)
+#define MACB_BFEXT(name,value)\
+ (((value) >> MACB_##name##_OFFSET) \
+ & ((1 << MACB_##name##_SIZE) - 1))
+#define MACB_BFINS(name,value,old) \
+ (((old) & ~(((1 << MACB_##name##_SIZE) - 1) \
+ << MACB_##name##_OFFSET)) \
+ | MACB_BF(name,value))
+
+/* Register access macros */
+#define macb_readl(port,reg) \
+ readl((port)->regs + MACB_##reg)
+#define macb_writel(port,reg,value) \
+ writel((value), (port)->regs + MACB_##reg)
+
+#endif /* __DRIVERS_MACB_H__ */
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