COBJS-$(CONFIG_VSC7385_ENET) += vsc7385.o
COBJS-$(CONFIG_XILINX_AXIEMAC) += xilinx_axi_emac.o
COBJS-$(CONFIG_XILINX_EMACLITE) += xilinx_emaclite.o
+COBJS-$(CONFIG_XILINX_LL_TEMAC) += xilinx_ll_temac.o xilinx_ll_temac_mdio.o \
+ xilinx_ll_temac_fifo.o xilinx_ll_temac_sdma.o
COBJS := $(sort $(COBJS-y))
SRCS := $(COBJS:.o=.c)
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * supports SDMA or FIFO access and MDIO bus communication
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+
+#include <config.h>
+#include <common.h>
+#include <net.h>
+#include <netdev.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <miiphy.h>
+
+#include "xilinx_ll_temac.h"
+#include "xilinx_ll_temac_fifo.h"
+#include "xilinx_ll_temac_sdma.h"
+#include "xilinx_ll_temac_mdio.h"
+
+#if !defined(CONFIG_MII)
+# error "LL_TEMAC requires MII -- missing CONFIG_MII"
+#endif
+
+#if !defined(CONFIG_PHYLIB)
+# error "LL_TEMAC requires PHYLIB -- missing CONFIG_PHYLIB"
+#endif
+
+struct ll_temac_info {
+ int flags;
+ unsigned long base_addr;
+ unsigned long ctrl_addr;
+ char *devname;
+ unsigned int phyaddr;
+ char *mdio_busname;
+};
+
+/* Ethernet interface ready status */
+int ll_temac_check_status(struct temac_reg *regs, u32 mask)
+{
+ unsigned timeout = 50; /* 1usec * 50 = 50usec */
+
+ /*
+ * Quote from LL TEMAC documentation: The bits in the RDY
+ * register are asserted when there is no access in progress.
+ * When an access is in progress, a bit corresponding to the
+ * type of access is automatically de-asserted. The bit is
+ * automatically re-asserted when the access is complete.
+ */
+ while (timeout && (!(in_be32(®s->rdy) & mask))) {
+ timeout--;
+ udelay(1);
+ }
+
+ if (!timeout) {
+ printf("%s: Timeout on 0x%08x @%p\n", __func__,
+ mask, ®s->rdy);
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
+ * Indirect write to ll_temac.
+ *
+ * http://www.xilinx.com/support/documentation/ip_documentation/xps_ll_temac.pdf
+ * page 23, second paragraph, The use of CTL0 register or CTL1 register
+ */
+int ll_temac_indirect_set(struct temac_reg *regs, u16 regn, u32 reg_data)
+{
+ out_be32(®s->lsw, (reg_data & MLSW_MASK));
+ out_be32(®s->ctl, CTL_WEN | (regn & CTL_ADDR_MASK));
+
+ if (ll_temac_check_status(regs, RSE_CFG_WR))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * Indirect read from ll_temac.
+ *
+ * http://www.xilinx.com/support/documentation/ip_documentation/xps_ll_temac.pdf
+ * page 23, second paragraph, The use of CTL0 register or CTL1 register
+ */
+int ll_temac_indirect_get(struct temac_reg *regs, u16 regn, u32* reg_data)
+{
+ out_be32(®s->ctl, (regn & CTL_ADDR_MASK));
+
+ if (ll_temac_check_status(regs, RSE_CFG_RR))
+ return 0;
+
+ *reg_data = in_be32(®s->lsw) & MLSW_MASK;
+ return 1;
+}
+
+/* setting sub-controller and ll_temac to proper setting */
+static int ll_temac_setup_ctrl(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ struct temac_reg *regs = (struct temac_reg *)dev->iobase;
+
+ if (ll_temac->ctrlreset && ll_temac->ctrlreset(dev))
+ return 0;
+
+ if (ll_temac->ctrlinit && ll_temac->ctrlinit(dev))
+ return 0;
+
+ /* Promiscuous mode disable */
+ if (!ll_temac_indirect_set(regs, TEMAC_AFM, 0))
+ return 0;
+
+ /* Enable Receiver - RX bit */
+ if (!ll_temac_indirect_set(regs, TEMAC_RCW1, RCW1_RX))
+ return 0;
+
+ /* Enable Transmitter - TX bit */
+ if (!ll_temac_indirect_set(regs, TEMAC_TC, TC_TX))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * Configure ll_temac based on negotiated speed and duplex
+ * reported by PHY handling code
+ */
+static int ll_temac_adjust_link(struct eth_device *dev)
+{
+ unsigned int speed, emmc_reg;
+ struct temac_reg *regs = (struct temac_reg *)dev->iobase;
+ struct ll_temac *ll_temac = dev->priv;
+ struct phy_device *phydev = ll_temac->phydev;
+
+ if (!phydev->link) {
+ printf("%s: No link.\n", phydev->dev->name);
+ return 0;
+ }
+
+ switch (phydev->speed) {
+ case 1000:
+ speed = EMMC_LSPD_1000;
+ break;
+ case 100:
+ speed = EMMC_LSPD_100;
+ break;
+ case 10:
+ speed = EMMC_LSPD_10;
+ break;
+ default:
+ return 0;
+ }
+
+ if (!ll_temac_indirect_get(regs, TEMAC_EMMC, &emmc_reg))
+ return 0;
+
+ emmc_reg &= ~EMMC_LSPD_MASK;
+ emmc_reg |= speed;
+
+ if (!ll_temac_indirect_set(regs, TEMAC_EMMC, emmc_reg))
+ return 0;
+
+ printf("%s: PHY is %s with %dbase%s, %s%s\n",
+ dev->name, phydev->drv->name,
+ phydev->speed, (phydev->port == PORT_TP) ? "T" : "X",
+ (phydev->duplex) ? "FDX" : "HDX",
+ (phydev->port == PORT_OTHER) ? ", unkown mode" : "");
+
+ return 1;
+}
+
+/* setup mac addr */
+static int ll_temac_setup_mac_addr(struct eth_device *dev)
+{
+ struct temac_reg *regs = (struct temac_reg *)dev->iobase;
+ u32 val;
+
+ /* set up unicast MAC address filter */
+ val = ((dev->enetaddr[3] << 24) | (dev->enetaddr[2] << 16) |
+ (dev->enetaddr[1] << 8) | (dev->enetaddr[0]));
+ val &= UAW0_UADDR_MASK;
+
+ if (!ll_temac_indirect_set(regs, TEMAC_UAW0, val))
+ return 1;
+
+ val = ((dev->enetaddr[5] << 8) | dev->enetaddr[4]);
+ val &= UAW1_UADDR_MASK;
+
+ if (!ll_temac_indirect_set(regs, TEMAC_UAW1, val))
+ return 1;
+
+ return 0;
+}
+
+/* halt device */
+static void ll_temac_halt(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ struct temac_reg *regs = (struct temac_reg *)dev->iobase;
+
+ /* Disable Receiver */
+ ll_temac_indirect_set(regs, TEMAC_RCW0, 0);
+
+ /* Disable Transmitter */
+ ll_temac_indirect_set(regs, TEMAC_TC, 0);
+
+ if (ll_temac->ctrlhalt)
+ ll_temac->ctrlhalt(dev);
+
+ /* Shut down the PHY, as needed */
+ phy_shutdown(ll_temac->phydev);
+}
+
+static int ll_temac_init(struct eth_device *dev, bd_t *bis)
+{
+ struct ll_temac *ll_temac = dev->priv;
+
+ printf("%s: Xilinx XPS LocalLink Tri-Mode Ether MAC #%d at 0x%08X.\n",
+ dev->name, dev->index, dev->iobase);
+
+ if (!ll_temac_setup_ctrl(dev))
+ return -1;
+
+ /* Start up the PHY */
+ phy_startup(ll_temac->phydev);
+
+ if (!ll_temac_adjust_link(dev)) {
+ ll_temac_halt(dev);
+ return -1;
+ }
+
+ /* If there's no link, fail */
+ return ll_temac->phydev->link ? 0 : -1;
+}
+
+/*
+ * Discover which PHY is attached to the device, and configure it
+ * properly. If the PHY is not recognized, then return 0
+ * (failure). Otherwise, return 1
+ */
+static int ll_temac_phy_init(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ struct phy_device *phydev;
+ unsigned int supported = PHY_GBIT_FEATURES;
+
+ /* interface - look at driver/net/tsec.c */
+ phydev = phy_connect(ll_temac->bus, ll_temac->phyaddr,
+ dev, PHY_INTERFACE_MODE_NONE);
+
+ phydev->supported &= supported;
+ phydev->advertising = phydev->supported;
+
+ ll_temac->phydev = phydev;
+
+ phy_config(phydev);
+
+ return 1;
+}
+
+/*
+ * Initialize a single ll_temac devices
+ *
+ * Returns the result of ll_temac phy interface that were initialized
+ */
+int xilinx_ll_temac_initialize(bd_t *bis, struct ll_temac_info *devinf)
+{
+ struct eth_device *dev;
+ struct ll_temac *ll_temac;
+
+ dev = calloc(1, sizeof(*dev));
+ if (dev == NULL)
+ return 0;
+
+ ll_temac = calloc(1, sizeof(struct ll_temac));
+ if (ll_temac == NULL) {
+ free(dev);
+ return 0;
+ }
+
+ /* use given name or generate its own unique name */
+ if (devinf->devname) {
+ strncpy(dev->name, devinf->devname, NAMESIZE);
+ } else {
+ snprintf(dev->name, NAMESIZE, "lltemac.%lx", devinf->base_addr);
+ devinf->devname = dev->name;
+ }
+
+ dev->iobase = devinf->base_addr;
+
+ dev->priv = ll_temac;
+ dev->init = ll_temac_init;
+ dev->halt = ll_temac_halt;
+ dev->write_hwaddr = ll_temac_setup_mac_addr;
+
+ ll_temac->ctrladdr = devinf->ctrl_addr;
+ if (devinf->flags & XILINX_LL_TEMAC_M_SDMA_PLB) {
+#if defined(CONFIG_XILINX_440) || defined(CONFIG_XILINX_405)
+ if (devinf->flags & XILINX_LL_TEMAC_M_SDMA_DCR) {
+ ll_temac_collect_xldcr_sdma_reg_addr(dev);
+ ll_temac->in32 = ll_temac_xldcr_in32;
+ ll_temac->out32 = ll_temac_xldcr_out32;
+ } else
+#endif
+ {
+ ll_temac_collect_xlplb_sdma_reg_addr(dev);
+ ll_temac->in32 = ll_temac_xlplb_in32;
+ ll_temac->out32 = ll_temac_xlplb_out32;
+ }
+ ll_temac->ctrlinit = ll_temac_init_sdma;
+ ll_temac->ctrlhalt = ll_temac_halt_sdma;
+ ll_temac->ctrlreset = ll_temac_reset_sdma;
+ dev->recv = ll_temac_recv_sdma;
+ dev->send = ll_temac_send_sdma;
+ } else {
+ ll_temac->in32 = NULL;
+ ll_temac->out32 = NULL;
+ ll_temac->ctrlinit = NULL;
+ ll_temac->ctrlhalt = NULL;
+ ll_temac->ctrlreset = ll_temac_reset_fifo;
+ dev->recv = ll_temac_recv_fifo;
+ dev->send = ll_temac_send_fifo;
+ }
+
+ /* Link to specified MDIO bus */
+ strncpy(ll_temac->mdio_busname, devinf->mdio_busname, MDIO_NAME_LEN);
+ ll_temac->bus = miiphy_get_dev_by_name(ll_temac->mdio_busname);
+
+ /* Looking for a valid PHY address if it is not yet set */
+ if (devinf->phyaddr == -1)
+ ll_temac->phyaddr = ll_temac_phy_addr(ll_temac->bus);
+ else
+ ll_temac->phyaddr = devinf->phyaddr;
+
+ eth_register(dev);
+
+ /* Try to initialize PHY here, and return */
+ return ll_temac_phy_init(dev);
+}
+
+/*
+ * Initialize a single ll_temac device with its mdio bus behind ll_temac
+ *
+ * Returns 1 if the ll_temac device and the mdio bus were initialized
+ * otherwise returns 0
+ */
+int xilinx_ll_temac_eth_init(bd_t *bis, unsigned long base_addr, int flags,
+ unsigned long ctrl_addr)
+{
+ struct ll_temac_info devinf;
+ struct ll_temac_mdio_info mdioinf;
+ int ret;
+
+ /* prepare the internal driver informations */
+ devinf.flags = flags;
+ devinf.base_addr = base_addr;
+ devinf.ctrl_addr = ctrl_addr;
+ devinf.devname = NULL;
+ devinf.phyaddr = -1;
+
+ mdioinf.name = devinf.mdio_busname = NULL;
+ mdioinf.regs = (struct temac_reg *)devinf.base_addr;
+
+ ret = xilinx_ll_temac_mdio_initialize(bis, &mdioinf);
+ if (ret >= 0) {
+
+ /*
+ * If there was no MDIO bus name then take over the
+ * new automaticaly generated by the MDIO init code.
+ */
+ if (mdioinf.name != devinf.mdio_busname)
+ devinf.mdio_busname = mdioinf.name;
+
+ ret = xilinx_ll_temac_initialize(bis, &devinf);
+ if (ret > 0)
+ return 1;
+
+ }
+
+ return 0;
+}
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * LL_TEMAC interface
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+#ifndef _XILINX_LL_TEMAC_
+#define _XILINX_LL_TEMAC_
+
+#include <config.h>
+#include <net.h>
+#include <phy.h>
+#include <miiphy.h>
+
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#include "xilinx_ll_temac_sdma.h"
+
+#if !defined(__BIG_ENDIAN)
+# error LL_TEMAC requires big endianess
+#endif
+
+/*
+ * TEMAC Memory and Register Definition
+ *
+ * [1]: [0]/ip_documentation/xps_ll_temac.pdf
+ * page 19, Memory and Register Descriptions
+ */
+struct temac_reg {
+ /* direct soft registers (low part) */
+ u32 raf; /* Reset and Address Filter */
+ u32 tpf; /* Transmit Pause Frame */
+ u32 ifgp; /* Transmit Inter Frame Gap Adjustment */
+ u32 is; /* Interrupt Status */
+ u32 ip; /* Interrupt Pending */
+ u32 ie; /* Interrupt Enable */
+ u32 ttag; /* Transmit VLAN Tag */
+ u32 rtag; /* Receive VLAN Tag */
+ /* hard TEMAC registers */
+ u32 msw; /* Most Significant Word Data */
+ u32 lsw; /* Least Significant Word Data */
+ u32 ctl; /* Control */
+ u32 rdy; /* Ready Status */
+ /* direct soft registers (high part) */
+ u32 uawl; /* Unicast Address Word Lower */
+ u32 uawu; /* Unicast Address Word Upper */
+ u32 tpid0; /* VLAN TPID Word 0 */
+ u32 tpid1; /* VLAN TPID Word 1 */
+};
+
+/* Reset and Address Filter Registers (raf), [1] p25 */
+#define RAF_SR (1 << 13)
+#define RAF_EMFE (1 << 12)
+#define RAF_NFE (1 << 11)
+#define RAF_RVSTM_POS 9
+#define RAF_RVSTM_MASK (3 << RAF_RVSTM_POS)
+#define RAF_TVSTM_POS 7
+#define RAF_TVSTM_MASK (3 << RAF_TVSTM_POS)
+#define RAF_RVTM_POS 5
+#define RAF_RVTM_MASK (3 << RAF_RVTM_POS)
+#define RAF_TVTM_POS 3
+#define RAF_TVTM_MASK (3 << RAF_TVTM_POS)
+#define RAF_BCREJ (1 << 2)
+#define RAF_MCREJ (1 << 1)
+#define RAF_HTRST (1 << 0)
+
+/* Transmit Pause Frame Registers (tpf), [1] p28 */
+#define TPF_TPFV_POS 0
+#define TPF_TPFV_MASK (0xFFFF << TPF_TPFV_POS)
+
+/* Transmit Inter Frame Gap Adjustment Registers (ifgp), [1] p28 */
+#define IFGP_POS 0
+#define IFGP_MASK (0xFF << IFGP_POS)
+
+/* Interrupt Status, Pending, Enable Registers (is, ip, ie), [1] p29-33 */
+#define ISPE_MR (1 << 7)
+#define ISPE_RDL (1 << 6)
+#define ISPE_TC (1 << 5)
+#define ISPE_RFO (1 << 4)
+#define ISPE_RR (1 << 3)
+#define ISPE_RC (1 << 2)
+#define ISPE_AN (1 << 1)
+#define ISPE_HAC (1 << 0)
+
+/* Transmit, Receive VLAN Tag Registers (ttag, rtag), [1] p34-35 */
+#define TRTAG_TPID_POS 16
+#define TRTAG_TPID_MASK (0xFFFF << TRTAG_TPID_POS)
+#define TRTAG_PRIO_POS 13
+#define TRTAG_PRIO_MASK (7 << TRTAG_PRIO_POS)
+#define TRTAG_CFI (1 << 12)
+#define TRTAG_VID_POS 0
+#define TRTAG_VID_MASK (0xFFF << TRTAG_VID_POS)
+
+/* Most, Least Significant Word Data Register (msw, lsw), [1] p46 */
+#define MLSW_POS 0
+#define MLSW_MASK (~0UL << MLSW_POS)
+
+/* LSW Data Register for PHY addresses (lsw), [1] p66 */
+#define LSW_REGAD_POS 0
+#define LSW_REGAD_MASK (0x1F << LSW_REGAD_POS)
+#define LSW_PHYAD_POS 5
+#define LSW_PHYAD_MASK (0x1F << LSW_PHYAD_POS)
+
+/* LSW Data Register for PHY data (lsw), [1] p66 */
+#define LSW_REGDAT_POS 0
+#define LSW_REGDAT_MASK (0xFFFF << LSW_REGDAT_POS)
+
+/* Control Register (ctl), [1] p47 */
+#define CTL_WEN (1 << 15)
+#define CTL_ADDR_POS 0
+#define CTL_ADDR_MASK (0x3FF << CTL_ADDR_POS)
+
+/* Ready Status Register Ethernet (rdy), [1] p48 */
+#define RSE_HACS_RDY (1 << 14)
+#define RSE_CFG_WR (1 << 6)
+#define RSE_CFG_RR (1 << 5)
+#define RSE_AF_WR (1 << 4)
+#define RSE_AF_RR (1 << 3)
+#define RSE_MIIM_WR (1 << 2)
+#define RSE_MIIM_RR (1 << 1)
+#define RSE_FABR_RR (1 << 0)
+
+/* Unicast Address Word Lower, Upper Registers (uawl, uawu), [1] p35-36 */
+#define UAWL_UADDR_POS 0
+#define UAWL_UADDR_MASK (~0UL << UAWL_UADDR_POS)
+#define UAWU_UADDR_POS 0
+#define UAWU_UADDR_MASK (0xFFFF << UAWU_UADDR_POS)
+
+/* VLAN TPID Word 0, 1 Registers (tpid0, tpid1), [1] p37 */
+#define TPID0_V0_POS 0
+#define TPID0_V0_MASK (0xFFFF << TPID0_V0_POS)
+#define TPID0_V1_POS 16
+#define TPID0_V1_MASK (0xFFFF << TPID0_V1_POS)
+#define TPID1_V2_POS 0
+#define TPID1_V2_MASK (0xFFFF << TPID1_V2_POS)
+#define TPID1_V3_POS 16
+#define TPID1_V3_MASK (0xFFFF << TPID1_V3_POS)
+
+/*
+ * TEMAC Indirectly Addressable Register Index Enumeration
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [1]: [0]/ip_documentation/xps_ll_temac.pdf
+ * page 23, PLB Indirectly Addressable TEMAC Registers
+ */
+enum temac_ctrl {
+ TEMAC_RCW0 = 0x200,
+ TEMAC_RCW1 = 0x240,
+ TEMAC_TC = 0x280,
+ TEMAC_FCC = 0x2C0,
+ TEMAC_EMMC = 0x300,
+ TEMAC_PHYC = 0x320,
+ TEMAC_MC = 0x340,
+ TEMAC_UAW0 = 0x380,
+ TEMAC_UAW1 = 0x384,
+ TEMAC_MAW0 = 0x388,
+ TEMAC_MAW1 = 0x38C,
+ TEMAC_AFM = 0x390,
+ TEMAC_TIS = 0x3A0,
+ TEMAC_TIE = 0x3A4,
+ TEMAC_MIIMWD = 0x3B0,
+ TEMAC_MIIMAI = 0x3B4
+};
+
+/* Receive Configuration Word 0, 1 Registers (RCW0, RCW1), [1] p50-51 */
+#define RCW0_PADDR_POS 0
+#define RCW0_PADDR_MASK (~0UL << RCW_PADDR_POS)
+#define RCW1_RST (1 << 31)
+#define RCW1_JUM (1 << 30)
+#define RCW1_FCS (1 << 29)
+#define RCW1_RX (1 << 28)
+#define RCW1_VLAN (1 << 27)
+#define RCW1_HD (1 << 26)
+#define RCW1_LT_DIS (1 << 25)
+#define RCW1_PADDR_POS 0
+#define RCW1_PADDR_MASK (0xFFFF << RCW_PADDR_POS)
+
+/* Transmit Configuration Registers (TC), [1] p52 */
+#define TC_RST (1 << 31)
+#define TC_JUM (1 << 30)
+#define TC_FCS (1 << 29)
+#define TC_TX (1 << 28)
+#define TC_VLAN (1 << 27)
+#define TC_HD (1 << 26)
+#define TC_IFG (1 << 25)
+
+/* Flow Control Configuration Registers (FCC), [1] p54 */
+#define FCC_FCTX (1 << 30)
+#define FCC_FCRX (1 << 29)
+
+/* Ethernet MAC Mode Configuration Registers (EMMC), [1] p54 */
+#define EMMC_LSPD_POS 30
+#define EMMC_LSPD_MASK (3 << EMMC_LSPD_POS)
+#define EMMC_LSPD_1000 (2 << EMMC_LSPD_POS)
+#define EMMC_LSPD_100 (1 << EMMC_LSPD_POS)
+#define EMMC_LSPD_10 0
+#define EMMC_RGMII (1 << 29)
+#define EMMC_SGMII (1 << 28)
+#define EMMC_GPCS (1 << 27)
+#define EMMC_HOST (1 << 26)
+#define EMMC_TX16 (1 << 25)
+#define EMMC_RX16 (1 << 24)
+
+/* RGMII/SGMII Configuration Registers (PHYC), [1] p56 */
+#define PHYC_SLSPD_POS 30
+#define PHYC_SLSPD_MASK (3 << EMMC_SLSPD_POS)
+#define PHYC_SLSPD_1000 (2 << EMMC_SLSPD_POS)
+#define PHYC_SLSPD_100 (1 << EMMC_SLSPD_POS)
+#define PHYC_SLSPD_10 0
+#define PHYC_RLSPD_POS 2
+#define PHYC_RLSPD_MASK (3 << EMMC_RLSPD_POS)
+#define PHYC_RLSPD_1000 (2 << EMMC_RLSPD_POS)
+#define PHYC_RLSPD_100 (1 << EMMC_RLSPD_POS)
+#define PHYC_RLSPD_10 0
+#define PHYC_RGMII_HD (1 << 1)
+#define PHYC_RGMII_LINK (1 << 0)
+
+/* Management Configuration Registers (MC), [1] p57 */
+#define MC_MDIOEN (1 << 6)
+#define MC_CLKDIV_POS 0
+#define MC_CLKDIV_MASK (0x3F << MC_CLKDIV_POS)
+
+/*
+ * fHOSTCLK fMDC = fHOSTCLK
+ * fMDC = ------------------- ---------> MC_CLKDIV = -------- - 1
+ * (1 + MC_CLKDIV) * 2 2.5 MHz 5MHz
+ */
+#define MC_CLKDIV(f, m) ((f / (2 * m)) - 1)
+#define MC_CLKDIV_25(f) MC_CLKDIV(f, 2500000)
+#define MC_CLKDIV_20(f) MC_CLKDIV(f, 2000000)
+#define MC_CLKDIV_15(f) MC_CLKDIV(f, 1500000)
+#define MC_CLKDIV_10(f) MC_CLKDIV(f, 1000000)
+
+/* Unicast Address Word 0, 1 Registers (UAW0, UAW1), [1] p58-59 */
+#define UAW0_UADDR_POS 0
+#define UAW0_UADDR_MASK (~0UL << UAW0_UADDR_POS)
+#define UAW1_UADDR_POS 0
+#define UAW1_UADDR_MASK (0xFFFF << UAW1_UADDR_POS)
+
+/* Multicast Address Word 0, 1 Registers (MAW0, MAW1), [1] p60 */
+#define MAW0_MADDR_POS 0
+#define MAW0_MADDR_MASK (~0UL << MAW0_MADDR_POS)
+#define MAW1_RNW (1 << 23)
+#define MAW1_MAIDX_POS 16
+#define MAW1_MAIDX_MASK (3 << MAW1_MAIDX_POS)
+#define MAW1_MADDR_POS 0
+#define MAW1_MADDR_MASK (0xFFFF << MAW1_MADDR_POS)
+
+/* Address Filter Mode Registers (AFM), [1] p63 */
+#define AFM_PM (1 << 31)
+
+/* Interrupt Status, Enable Registers (TIS, TIE), [1] p63-65 */
+#define TISE_CFG_W (1 << 6)
+#define TISE_CFG_R (1 << 5)
+#define TISE_AF_W (1 << 4)
+#define TISE_AF_R (1 << 3)
+#define TISE_MIIM_W (1 << 2)
+#define TISE_MIIM_R (1 << 1)
+#define TISE_FABR_R (1 << 0)
+
+/* MII Management Write Data Registers (MIIMWD), [1] p66 */
+#define MIIMWD_DATA_POS 0
+#define MIIMWD_DATA_MASK (0xFFFF << MIIMWD_DATA_POS)
+
+/* Ethernet interface ready status */
+int ll_temac_check_status(struct temac_reg *regs, u32 mask);
+
+/* Indirect write to ll_temac. */
+int ll_temac_indirect_set(struct temac_reg *regs, u16 regn, u32 reg_data);
+
+/* Indirect read from ll_temac. */
+int ll_temac_indirect_get(struct temac_reg *regs, u16 regn, u32* reg_data);
+
+struct ll_temac {
+ phys_addr_t ctrladdr;
+ phys_addr_t sdma_reg_addr[SDMA_CTRL_REGNUMS];
+
+ unsigned (*in32)(phys_addr_t);
+ void (*out32)(phys_addr_t, unsigned);
+
+ int (*ctrlinit) (struct eth_device *);
+ int (*ctrlhalt) (struct eth_device *);
+ int (*ctrlreset) (struct eth_device *);
+
+ int phyaddr;
+ struct phy_device *phydev;
+ struct mii_dev *bus;
+ char mdio_busname[MDIO_NAME_LEN];
+};
+
+#endif /* _XILINX_LL_TEMAC_ */
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * FIFO sub-controller
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * CREDITS: tsec driver
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [F]: [0]/ip_documentation/xps_ll_fifo.pdf
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+
+#include <config.h>
+#include <common.h>
+#include <net.h>
+
+#include <asm/types.h>
+#include <asm/io.h>
+
+#include "xilinx_ll_temac.h"
+#include "xilinx_ll_temac_fifo.h"
+
+int ll_temac_reset_fifo(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ struct fifo_ctrl *fifo_ctrl = (void *)ll_temac->ctrladdr;
+
+ out_be32(&fifo_ctrl->tdfr, LL_FIFO_TDFR_KEY);
+ out_be32(&fifo_ctrl->rdfr, LL_FIFO_RDFR_KEY);
+ out_be32(&fifo_ctrl->isr, ~0UL);
+ out_be32(&fifo_ctrl->ier, 0);
+
+ return 0;
+}
+
+int ll_temac_recv_fifo(struct eth_device *dev)
+{
+ int i, length = 0;
+ u32 *buf = (u32 *)NetRxPackets[0];
+ struct ll_temac *ll_temac = dev->priv;
+ struct fifo_ctrl *fifo_ctrl = (void *)ll_temac->ctrladdr;
+
+ if (in_be32(&fifo_ctrl->isr) & LL_FIFO_ISR_RC) {
+
+ /* reset isr */
+ out_be32(&fifo_ctrl->isr, ~0UL);
+
+ /*
+ * MAYBE here:
+ * while (fifo_ctrl->isr);
+ */
+
+ /*
+ * The length is written (into RLR) by the XPS LL FIFO
+ * when the packet is received across the RX LocalLink
+ * interface and the receive data FIFO had enough
+ * locations that all of the packet data has been saved.
+ * The RLR should only be read when a receive packet is
+ * available for processing (the receive occupancy is
+ * not zero). Once the RLR is read, the receive packet
+ * data should be read from the receive data FIFO before
+ * the RLR is read again.
+ *
+ * [F] page 17, Receive Length Register (RLR)
+ */
+ if (in_be32(&fifo_ctrl->rdfo) & LL_FIFO_RDFO_MASK) {
+ length = in_be32(&fifo_ctrl->rlf) & LL_FIFO_RLF_MASK;
+ } else {
+ printf("%s: Got error, no receive occupancy\n",
+ __func__);
+ return -1;
+ }
+
+ if (length > PKTSIZE_ALIGN) {
+ printf("%s: Got error, receive package too big (%i)\n",
+ __func__, length);
+ ll_temac_reset_fifo(dev);
+ return -1;
+ }
+
+ for (i = 0; i < length; i += 4)
+ *buf++ = in_be32(&fifo_ctrl->rdfd);
+
+ NetReceive(NetRxPackets[0], length);
+ }
+
+ return 0;
+}
+
+int ll_temac_send_fifo(struct eth_device *dev, volatile void *packet,
+ int length)
+{
+ int i;
+ u32 *buf = (u32 *)packet;
+ struct ll_temac *ll_temac = dev->priv;
+ struct fifo_ctrl *fifo_ctrl = (void *)ll_temac->ctrladdr;
+
+ if (length < LL_FIFO_TLF_MIN) {
+ printf("%s: Got error, transmit package too small (%i)\n",
+ __func__, length);
+ return -1;
+ }
+
+ if (length > LL_FIFO_TLF_MAX) {
+ printf("%s: Got error, transmit package too big (%i)\n",
+ __func__, length);
+ return -1;
+ }
+
+ for (i = 0; i < length; i += 4)
+ out_be32(&fifo_ctrl->tdfd, *buf++);
+
+ /*
+ * Once the packet length is written to the TLR it is
+ * automatically moved to the transmit data FIFO with
+ * the packet data freeing up the TLR for another value.
+ * The packet length must be written to the TLR after
+ * the packet data is written to the transmit data FIFO.
+ * It is not valid to write data for multiple packets
+ * to the transmit data FIFO before writing the packet
+ * length values.
+ *
+ * [F] page 17, Transmit Length Register (TLR)
+ */
+ out_be32(&fifo_ctrl->tlf, length);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * FIFO sub-controller interface
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+#ifndef _XILINX_LL_TEMAC_FIFO_
+#define _XILINX_LL_TEMAC_FIFO_
+
+#include <net.h>
+
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#if !defined(__BIG_ENDIAN)
+# error LL_TEMAC requires big endianess
+#endif
+
+/*
+ * FIFO Register Definition
+ *
+ * Used for memory mapped access from and to (Rd/Td) the LocalLink (LL)
+ * Tri-Mode Ether MAC (TEMAC) via the 2 kb full duplex FIFO Controller,
+ * one for each.
+ *
+ * [1]: [0]/ip_documentation/xps_ll_fifo.pdf
+ * page 10, Registers Definition
+ */
+struct fifo_ctrl {
+ u32 isr; /* Interrupt Status Register (RW) */
+ u32 ier; /* Interrupt Enable Register (RW) */
+ u32 tdfr; /* Transmit Data FIFO Reset (WO) */
+ u32 tdfv; /* Transmit Data FIFO Vacancy (RO) */
+ u32 tdfd; /* Transmit Data FIFO 32bit wide Data write port (WO) */
+ u32 tlf; /* Transmit Length FIFO (WO) */
+ u32 rdfr; /* Receive Data FIFO Reset (WO) */
+ u32 rdfo; /* Receive Data FIFO Occupancy (RO) */
+ u32 rdfd; /* Receive Data FIFO 32bit wide Data read port (RO) */
+ u32 rlf; /* Receive Length FIFO (RO) */
+ u32 llr; /* LocalLink Reset (WO) */
+};
+
+/* Interrupt Status Register (ISR), [1] p11 */
+#define LL_FIFO_ISR_RPURE (1 << 31) /* Receive Packet Underrun Read Err */
+#define LL_FIFO_ISR_RPORE (1 << 30) /* Receive Packet Overrun Read Err */
+#define LL_FIFO_ISR_RPUE (1 << 29) /* Receive Packet Underrun Error */
+#define LL_FIFO_ISR_TPOE (1 << 28) /* Transmit Packet Overrun Error */
+#define LL_FIFO_ISR_TC (1 << 27) /* Transmit Complete */
+#define LL_FIFO_ISR_RC (1 << 26) /* Receive Complete */
+#define LL_FIFO_ISR_TSE (1 << 25) /* Transmit Size Error */
+#define LL_FIFO_ISR_TRC (1 << 24) /* Transmit Reset Complete */
+#define LL_FIFO_ISR_RRC (1 << 23) /* Receive Reset Complete */
+
+/* Interrupt Enable Register (IER), [1] p12/p13 */
+#define LL_FIFO_IER_RPURE (1 << 31) /* Receive Packet Underrun Read Err */
+#define LL_FIFO_IER_RPORE (1 << 30) /* Receive Packet Overrun Read Err */
+#define LL_FIFO_IER_RPUE (1 << 29) /* Receive Packet Underrun Error */
+#define LL_FIFO_IER_TPOE (1 << 28) /* Transmit Packet Overrun Error */
+#define LL_FIFO_IER_TC (1 << 27) /* Transmit Complete */
+#define LL_FIFO_IER_RC (1 << 26) /* Receive Complete */
+#define LL_FIFO_IER_TSE (1 << 25) /* Transmit Size Error */
+#define LL_FIFO_IER_TRC (1 << 24) /* Transmit Reset Complete */
+#define LL_FIFO_IER_RRC (1 << 23) /* Receive Reset Complete */
+
+/* Transmit Data FIFO Reset (TDFR), [1] p13/p14 */
+#define LL_FIFO_TDFR_KEY 0x000000A5UL
+
+/* Transmit Data FIFO Vacancy (TDFV), [1] p14 */
+#define LL_FIFO_TDFV_POS 0
+#define LL_FIFO_TDFV_MASK (0x000001FFUL << LL_FIFO_TDFV_POS)
+
+/* Transmit Length FIFO (TLF), [1] p16/p17 */
+#define LL_FIFO_TLF_POS 0
+#define LL_FIFO_TLF_MASK (0x000007FFUL << LL_FIFO_TLF_POS)
+#define LL_FIFO_TLF_MIN ((4 * sizeof(u32)) & LL_FIFO_TLF_MASK)
+#define LL_FIFO_TLF_MAX ((510 * sizeof(u32)) & LL_FIFO_TLF_MASK)
+
+/* Receive Data FIFO Reset (RDFR), [1] p15 */
+#define LL_FIFO_RDFR_KEY 0x000000A5UL
+
+/* Receive Data FIFO Occupancy (RDFO), [1] p16 */
+#define LL_FIFO_RDFO_POS 0
+#define LL_FIFO_RDFO_MASK (0x000001FFUL << LL_FIFO_RDFO_POS)
+
+/* Receive Length FIFO (RLF), [1] p17/p18 */
+#define LL_FIFO_RLF_POS 0
+#define LL_FIFO_RLF_MASK (0x000007FFUL << LL_FIFO_RLF_POS)
+#define LL_FIFO_RLF_MIN ((4 * sizeof(uint32)) & LL_FIFO_RLF_MASK)
+#define LL_FIFO_RLF_MAX ((510 * sizeof(uint32)) & LL_FIFO_RLF_MASK)
+
+/* LocalLink Reset (LLR), [1] p18 */
+#define LL_FIFO_LLR_KEY 0x000000A5UL
+
+
+/* reset FIFO and IRQ, disable interrupts */
+int ll_temac_reset_fifo(struct eth_device *dev);
+
+/* receive buffered data from FIFO (polling ISR) */
+int ll_temac_recv_fifo(struct eth_device *dev);
+
+/* send buffered data to FIFO */
+int ll_temac_send_fifo(struct eth_device *dev, volatile void *packet,
+ int length);
+
+#endif /* _XILINX_LL_TEMAC_FIFO_ */
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * MDIO bus access
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * CREDITS: tsec driver
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+
+#include <config.h>
+#include <common.h>
+#include <miiphy.h>
+#include <phy.h>
+#include <malloc.h>
+#include <asm/io.h>
+
+#include "xilinx_ll_temac.h"
+#include "xilinx_ll_temac_mdio.h"
+
+#if !defined(CONFIG_MII)
+# error "LL_TEMAC requires MII -- missing CONFIG_MII"
+#endif
+
+#if !defined(CONFIG_PHYLIB)
+# error "LL_TEMAC requires PHYLIB -- missing CONFIG_PHYLIB"
+#endif
+
+/*
+ * Prior to PHY access, the MDIO clock must be setup. This driver will set a
+ * safe default that should work with PLB bus speeds of up to 150 MHz and keep
+ * the MDIO clock below 2.5 MHz. If the user wishes faster access to the PHY
+ * then the clock divisor can be set to a different value by setting the
+ * correct bus speed value with CONFIG_XILINX_LL_TEMAC_CLK.
+ */
+#if !defined(CONFIG_XILINX_LL_TEMAC_CLK)
+#define MDIO_CLOCK_DIV MC_CLKDIV_10(150000000)
+#else
+#define MDIO_CLOCK_DIV MC_CLKDIV_25(CONFIG_XILINX_LL_TEMAC_CLK)
+#endif
+
+static int ll_temac_mdio_setup(struct mii_dev *bus)
+{
+ struct temac_reg *regs = (struct temac_reg *)bus->priv;
+
+ /* setup MDIO clock */
+ ll_temac_indirect_set(regs, TEMAC_MC,
+ MC_MDIOEN | (MDIO_CLOCK_DIV & MC_CLKDIV_MASK));
+
+ return 0;
+}
+
+/*
+ * Indirect MII PHY read via ll_temac.
+ *
+ * http://www.xilinx.com/support/documentation/ip_documentation/xps_ll_temac.pdf
+ * page 67, Using the MII Management to Access PHY Registers
+ */
+int ll_temac_local_mdio_read(struct temac_reg *regs, int addr, int devad,
+ int regnum)
+{
+ out_be32(®s->lsw,
+ ((addr << LSW_PHYAD_POS) & LSW_PHYAD_MASK) |
+ (regnum & LSW_REGAD_MASK));
+ out_be32(®s->ctl, TEMAC_MIIMAI);
+
+ ll_temac_check_status(regs, RSE_MIIM_RR);
+
+ return in_be32(®s->lsw) & LSW_REGDAT_MASK;
+}
+
+/*
+ * Indirect MII PHY write via ll_temac.
+ *
+ * http://www.xilinx.com/support/documentation/ip_documentation/xps_ll_temac.pdf
+ * page 67, Using the MII Management to Access PHY Registers
+ */
+void ll_temac_local_mdio_write(struct temac_reg *regs, int addr, int devad,
+ int regnum, u16 value)
+{
+ out_be32(®s->lsw, (value & LSW_REGDAT_MASK));
+ out_be32(®s->ctl, CTL_WEN | TEMAC_MIIMWD);
+
+ out_be32(®s->lsw,
+ ((addr << LSW_PHYAD_POS) & LSW_PHYAD_MASK) |
+ (regnum & LSW_REGAD_MASK));
+ out_be32(®s->ctl, CTL_WEN | TEMAC_MIIMAI);
+
+ ll_temac_check_status(regs, RSE_MIIM_WR);
+}
+
+int ll_temac_phy_read(struct mii_dev *bus, int addr, int devad, int regnum)
+{
+ struct temac_reg *regs = (struct temac_reg *)bus->priv;
+
+ return ll_temac_local_mdio_read(regs, addr, devad, regnum);
+}
+
+int ll_temac_phy_write(struct mii_dev *bus, int addr, int devad, int regnum,
+ u16 value)
+{
+ struct temac_reg *regs = (struct temac_reg *)bus->priv;
+
+ ll_temac_local_mdio_write(regs, addr, devad, regnum, value);
+
+ return 0;
+}
+
+/*
+ * Use MII register 1 (MII status register) to detect PHY
+ *
+ * A Mask used to verify certain PHY features (register content)
+ * in the PHY detection register:
+ * Auto-negotiation support, 10Mbps half/full duplex support
+ */
+#define PHY_DETECT_REG MII_BMSR
+#define PHY_DETECT_MASK (BMSR_10FULL | BMSR_10HALF | BMSR_ANEGCAPABLE)
+
+/* Looking for a valid PHY address */
+int ll_temac_phy_addr(struct mii_dev *bus)
+{
+ struct temac_reg *regs = (struct temac_reg *)bus->priv;
+ unsigned short val;
+ unsigned int phy;
+
+ for (phy = PHY_MAX_ADDR; phy >= 0; phy--) {
+ val = ll_temac_local_mdio_read(regs, phy, 0, PHY_DETECT_REG);
+ if ((val != 0xFFFF) &&
+ ((val & PHY_DETECT_MASK) == PHY_DETECT_MASK)) {
+ /* Found a valid PHY address */
+ return phy;
+ }
+ }
+
+ return -1;
+}
+
+int xilinx_ll_temac_mdio_initialize(bd_t *bis, struct ll_temac_mdio_info *info)
+{
+ struct mii_dev *bus = mdio_alloc();
+
+ if (!bus) {
+ printf("Failed to allocate LL_TEMAC MDIO bus: %s\n",
+ info->name);
+ return -1;
+ }
+
+ bus->read = ll_temac_phy_read;
+ bus->write = ll_temac_phy_write;
+ bus->reset = NULL;
+
+ /* use given name or generate its own unique name */
+ if (info->name) {
+ strncpy(bus->name, info->name, MDIO_NAME_LEN);
+ } else {
+ snprintf(bus->name, MDIO_NAME_LEN, "lltemii.%p", info->regs);
+ info->name = bus->name;
+ }
+
+ bus->priv = info->regs;
+
+ ll_temac_mdio_setup(bus);
+ return mdio_register(bus);
+}
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * MDIO bus access interface
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+#ifndef _XILINX_LL_TEMAC_MDIO_
+#define _XILINX_LL_TEMAC_MDIO_
+
+#include <net.h>
+#include <miiphy.h>
+
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#include "xilinx_ll_temac.h"
+
+int ll_temac_local_mdio_read(struct temac_reg *regs, int addr, int devad,
+ int regnum);
+void ll_temac_local_mdio_write(struct temac_reg *regs, int addr, int devad,
+ int regnum, u16 value);
+
+int ll_temac_phy_read(struct mii_dev *bus, int addr, int devad, int regnum);
+int ll_temac_phy_write(struct mii_dev *bus, int addr, int devad, int regnum,
+ u16 value);
+
+int ll_temac_phy_addr(struct mii_dev *bus);
+
+struct ll_temac_mdio_info {
+ struct temac_reg *regs;
+ char *name;
+};
+
+int xilinx_ll_temac_mdio_initialize(bd_t *bis, struct ll_temac_mdio_info *info);
+
+#endif /* _XILINX_LL_TEMAC_MDIO_ */
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * SDMA sub-controller
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * CREDITS: tsec driver
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [M]: [0]/ip_documentation/mpmc.pdf
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+
+#include <config.h>
+#include <common.h>
+#include <net.h>
+
+#include <asm/types.h>
+#include <asm/io.h>
+
+#include "xilinx_ll_temac.h"
+#include "xilinx_ll_temac_sdma.h"
+
+#define TX_BUF_CNT 2
+
+static unsigned int rx_idx; /* index of the current RX buffer */
+static unsigned int tx_idx; /* index of the current TX buffer */
+
+struct rtx_cdmac_bd {
+ struct cdmac_bd rx[PKTBUFSRX];
+ struct cdmac_bd tx[TX_BUF_CNT];
+};
+
+/*
+ * DMA Buffer Descriptor alignment
+ *
+ * If the address contained in the Next Descriptor Pointer register is not
+ * 8-word aligned or reaches beyond the range of available memory, the SDMA
+ * halts processing and sets the CDMAC_BD_STCTRL_ERROR bit in the respective
+ * status register (tx_chnl_sts or rx_chnl_sts).
+ *
+ * [1]: [0]/ip_documentation/mpmc.pdf
+ * page 161, Next Descriptor Pointer
+ */
+static struct rtx_cdmac_bd cdmac_bd __aligned(32);
+
+#if defined(CONFIG_XILINX_440) || defined(CONFIG_XILINX_405)
+
+/*
+ * Indirect DCR access operations mi{ft}dcr_xilinx() espacialy
+ * for Xilinx PowerPC implementations on FPGA.
+ *
+ * FIXME: This part should go up to arch/powerpc -- but where?
+ */
+#include <asm/processor.h>
+#define XILINX_INDIRECT_DCR_ADDRESS_REG 0
+#define XILINX_INDIRECT_DCR_ACCESS_REG 1
+inline unsigned mifdcr_xilinx(const unsigned dcrn)
+{
+ mtdcr(XILINX_INDIRECT_DCR_ADDRESS_REG, dcrn);
+ return mfdcr(XILINX_INDIRECT_DCR_ACCESS_REG);
+}
+inline void mitdcr_xilinx(const unsigned dcrn, int val)
+{
+ mtdcr(XILINX_INDIRECT_DCR_ADDRESS_REG, dcrn);
+ mtdcr(XILINX_INDIRECT_DCR_ACCESS_REG, val);
+}
+
+/* Xilinx Device Control Register (DCR) in/out accessors */
+inline unsigned ll_temac_xldcr_in32(phys_addr_t addr)
+{
+ return mifdcr_xilinx((const unsigned)addr);
+}
+inline void ll_temac_xldcr_out32(phys_addr_t addr, unsigned value)
+{
+ mitdcr_xilinx((const unsigned)addr, value);
+}
+
+void ll_temac_collect_xldcr_sdma_reg_addr(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ phys_addr_t dmac_ctrl = ll_temac->ctrladdr;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ ra[TX_NXTDESC_PTR] = dmac_ctrl + TX_NXTDESC_PTR;
+ ra[TX_CURBUF_ADDR] = dmac_ctrl + TX_CURBUF_ADDR;
+ ra[TX_CURBUF_LENGTH] = dmac_ctrl + TX_CURBUF_LENGTH;
+ ra[TX_CURDESC_PTR] = dmac_ctrl + TX_CURDESC_PTR;
+ ra[TX_TAILDESC_PTR] = dmac_ctrl + TX_TAILDESC_PTR;
+ ra[TX_CHNL_CTRL] = dmac_ctrl + TX_CHNL_CTRL;
+ ra[TX_IRQ_REG] = dmac_ctrl + TX_IRQ_REG;
+ ra[TX_CHNL_STS] = dmac_ctrl + TX_CHNL_STS;
+ ra[RX_NXTDESC_PTR] = dmac_ctrl + RX_NXTDESC_PTR;
+ ra[RX_CURBUF_ADDR] = dmac_ctrl + RX_CURBUF_ADDR;
+ ra[RX_CURBUF_LENGTH] = dmac_ctrl + RX_CURBUF_LENGTH;
+ ra[RX_CURDESC_PTR] = dmac_ctrl + RX_CURDESC_PTR;
+ ra[RX_TAILDESC_PTR] = dmac_ctrl + RX_TAILDESC_PTR;
+ ra[RX_CHNL_CTRL] = dmac_ctrl + RX_CHNL_CTRL;
+ ra[RX_IRQ_REG] = dmac_ctrl + RX_IRQ_REG;
+ ra[RX_CHNL_STS] = dmac_ctrl + RX_CHNL_STS;
+ ra[DMA_CONTROL_REG] = dmac_ctrl + DMA_CONTROL_REG;
+}
+
+#endif /* CONFIG_XILINX_440 || ONFIG_XILINX_405 */
+
+/* Xilinx Processor Local Bus (PLB) in/out accessors */
+inline unsigned ll_temac_xlplb_in32(phys_addr_t addr)
+{
+ return in_be32((void *)addr);
+}
+inline void ll_temac_xlplb_out32(phys_addr_t addr, unsigned value)
+{
+ out_be32((void *)addr, value);
+}
+
+/* collect all register addresses for Xilinx PLB in/out accessors */
+void ll_temac_collect_xlplb_sdma_reg_addr(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ struct sdma_ctrl *sdma_ctrl = (void *)ll_temac->ctrladdr;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ ra[TX_NXTDESC_PTR] = (phys_addr_t)&sdma_ctrl->tx_nxtdesc_ptr;
+ ra[TX_CURBUF_ADDR] = (phys_addr_t)&sdma_ctrl->tx_curbuf_addr;
+ ra[TX_CURBUF_LENGTH] = (phys_addr_t)&sdma_ctrl->tx_curbuf_length;
+ ra[TX_CURDESC_PTR] = (phys_addr_t)&sdma_ctrl->tx_curdesc_ptr;
+ ra[TX_TAILDESC_PTR] = (phys_addr_t)&sdma_ctrl->tx_taildesc_ptr;
+ ra[TX_CHNL_CTRL] = (phys_addr_t)&sdma_ctrl->tx_chnl_ctrl;
+ ra[TX_IRQ_REG] = (phys_addr_t)&sdma_ctrl->tx_irq_reg;
+ ra[TX_CHNL_STS] = (phys_addr_t)&sdma_ctrl->tx_chnl_sts;
+ ra[RX_NXTDESC_PTR] = (phys_addr_t)&sdma_ctrl->rx_nxtdesc_ptr;
+ ra[RX_CURBUF_ADDR] = (phys_addr_t)&sdma_ctrl->rx_curbuf_addr;
+ ra[RX_CURBUF_LENGTH] = (phys_addr_t)&sdma_ctrl->rx_curbuf_length;
+ ra[RX_CURDESC_PTR] = (phys_addr_t)&sdma_ctrl->rx_curdesc_ptr;
+ ra[RX_TAILDESC_PTR] = (phys_addr_t)&sdma_ctrl->rx_taildesc_ptr;
+ ra[RX_CHNL_CTRL] = (phys_addr_t)&sdma_ctrl->rx_chnl_ctrl;
+ ra[RX_IRQ_REG] = (phys_addr_t)&sdma_ctrl->rx_irq_reg;
+ ra[RX_CHNL_STS] = (phys_addr_t)&sdma_ctrl->rx_chnl_sts;
+ ra[DMA_CONTROL_REG] = (phys_addr_t)&sdma_ctrl->dma_control_reg;
+}
+
+/* Check for TX and RX channel errors. */
+static inline int ll_temac_sdma_error(struct eth_device *dev)
+{
+ int err;
+ struct ll_temac *ll_temac = dev->priv;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ err = ll_temac->in32(ra[TX_CHNL_STS]) & CHNL_STS_ERROR;
+ err |= ll_temac->in32(ra[RX_CHNL_STS]) & CHNL_STS_ERROR;
+
+ return err;
+}
+
+int ll_temac_init_sdma(struct eth_device *dev)
+{
+ struct ll_temac *ll_temac = dev->priv;
+ struct cdmac_bd *rx_dp;
+ struct cdmac_bd *tx_dp;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+ int i;
+
+ printf("%s: SDMA: %d Rx buffers, %d Tx buffers\n",
+ dev->name, PKTBUFSRX, TX_BUF_CNT);
+
+ /* Initialize the Rx Buffer descriptors */
+ for (i = 0; i < PKTBUFSRX; i++) {
+ rx_dp = &cdmac_bd.rx[i];
+ memset(rx_dp, 0, sizeof(*rx_dp));
+ rx_dp->next_p = rx_dp;
+ rx_dp->buf_len = PKTSIZE_ALIGN;
+ rx_dp->phys_buf_p = (u8 *)NetRxPackets[i];
+ flush_cache((u32)rx_dp->phys_buf_p, PKTSIZE_ALIGN);
+ }
+ flush_cache((u32)cdmac_bd.rx, sizeof(cdmac_bd.rx));
+
+ /* Initialize the TX Buffer Descriptors */
+ for (i = 0; i < TX_BUF_CNT; i++) {
+ tx_dp = &cdmac_bd.tx[i];
+ memset(tx_dp, 0, sizeof(*tx_dp));
+ tx_dp->next_p = tx_dp;
+ }
+ flush_cache((u32)cdmac_bd.tx, sizeof(cdmac_bd.tx));
+
+ /* Reset index counter to the Rx and Tx Buffer descriptors */
+ rx_idx = tx_idx = 0;
+
+ /* initial Rx DMA start by writing to respective TAILDESC_PTR */
+ ll_temac->out32(ra[RX_CURDESC_PTR], (int)&cdmac_bd.rx[rx_idx]);
+ ll_temac->out32(ra[RX_TAILDESC_PTR], (int)&cdmac_bd.rx[rx_idx]);
+
+ return 0;
+}
+
+int ll_temac_halt_sdma(struct eth_device *dev)
+{
+ unsigned timeout = 50; /* 1usec * 50 = 50usec */
+ struct ll_temac *ll_temac = dev->priv;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ /*
+ * Soft reset the DMA
+ *
+ * Quote from MPMC documentation: Writing a 1 to this field
+ * forces the DMA engine to shutdown and reset itself. After
+ * setting this bit, software must poll it until the bit is
+ * cleared by the DMA. This indicates that the reset process
+ * is done and the pipeline has been flushed.
+ */
+ ll_temac->out32(ra[DMA_CONTROL_REG], DMA_CONTROL_RESET);
+ while (timeout && (ll_temac->in32(ra[DMA_CONTROL_REG])
+ & DMA_CONTROL_RESET)) {
+ timeout--;
+ udelay(1);
+ }
+
+ if (!timeout) {
+ printf("%s: Timeout\n", __func__);
+ return -1;
+ }
+
+ return 0;
+}
+
+int ll_temac_reset_sdma(struct eth_device *dev)
+{
+ u32 r;
+ struct ll_temac *ll_temac = dev->priv;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ /* Soft reset the DMA. */
+ if (ll_temac_halt_sdma(dev))
+ return -1;
+
+ /* Now clear the interrupts. */
+ r = ll_temac->in32(ra[TX_CHNL_CTRL]);
+ r &= ~CHNL_CTRL_IRQ_MASK;
+ ll_temac->out32(ra[TX_CHNL_CTRL], r);
+
+ r = ll_temac->in32(ra[RX_CHNL_CTRL]);
+ r &= ~CHNL_CTRL_IRQ_MASK;
+ ll_temac->out32(ra[RX_CHNL_CTRL], r);
+
+ /* Now ACK pending IRQs. */
+ ll_temac->out32(ra[TX_IRQ_REG], IRQ_REG_IRQ_MASK);
+ ll_temac->out32(ra[RX_IRQ_REG], IRQ_REG_IRQ_MASK);
+
+ /* Set tail-ptr mode, disable errors for both channels. */
+ ll_temac->out32(ra[DMA_CONTROL_REG],
+ /* Enable use of tail pointer register */
+ DMA_CONTROL_TPE |
+ /* Disable error when 2 or 4 bit coalesce cnt overfl */
+ DMA_CONTROL_RXOCEID |
+ /* Disable error when 2 or 4 bit coalesce cnt overfl */
+ DMA_CONTROL_TXOCEID);
+
+ return 0;
+}
+
+int ll_temac_recv_sdma(struct eth_device *dev)
+{
+ int length, pb_idx;
+ struct cdmac_bd *rx_dp = &cdmac_bd.rx[rx_idx];
+ struct ll_temac *ll_temac = dev->priv;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ if (ll_temac_sdma_error(dev)) {
+
+ if (ll_temac_reset_sdma(dev))
+ return -1;
+
+ ll_temac_init_sdma(dev);
+ }
+
+ flush_cache((u32)rx_dp, sizeof(*rx_dp));
+
+ if (!(rx_dp->sca.stctrl & CDMAC_BD_STCTRL_COMPLETED))
+ return 0;
+
+ if (rx_dp->sca.stctrl & (CDMAC_BD_STCTRL_SOP | CDMAC_BD_STCTRL_EOP)) {
+ pb_idx = rx_idx;
+ length = rx_dp->sca.app[4] & CDMAC_BD_APP4_RXBYTECNT_MASK;
+ } else {
+ pb_idx = -1;
+ length = 0;
+ printf("%s: Got part of package, unsupported (%x)\n",
+ __func__, rx_dp->sca.stctrl);
+ }
+
+ /* flip the buffer */
+ flush_cache((u32)rx_dp->phys_buf_p, length);
+
+ /* reset the current descriptor */
+ rx_dp->sca.stctrl = 0;
+ rx_dp->sca.app[4] = 0;
+ flush_cache((u32)rx_dp, sizeof(*rx_dp));
+
+ /* Find next empty buffer descriptor, preparation for next iteration */
+ rx_idx = (rx_idx + 1) % PKTBUFSRX;
+ rx_dp = &cdmac_bd.rx[rx_idx];
+ flush_cache((u32)rx_dp, sizeof(*rx_dp));
+
+ /* DMA start by writing to respective TAILDESC_PTR */
+ ll_temac->out32(ra[RX_CURDESC_PTR], (int)&cdmac_bd.rx[rx_idx]);
+ ll_temac->out32(ra[RX_TAILDESC_PTR], (int)&cdmac_bd.rx[rx_idx]);
+
+ if (length > 0 && pb_idx != -1)
+ NetReceive(NetRxPackets[pb_idx], length);
+
+ return 0;
+}
+
+int ll_temac_send_sdma(struct eth_device *dev, volatile void *packet,
+ int length)
+{
+ unsigned timeout = 50; /* 1usec * 50 = 50usec */
+ struct cdmac_bd *tx_dp = &cdmac_bd.tx[tx_idx];
+ struct ll_temac *ll_temac = dev->priv;
+ phys_addr_t *ra = ll_temac->sdma_reg_addr;
+
+ if (ll_temac_sdma_error(dev)) {
+
+ if (ll_temac_reset_sdma(dev))
+ return -1;
+
+ ll_temac_init_sdma(dev);
+ }
+
+ tx_dp->phys_buf_p = (u8 *)packet;
+ tx_dp->buf_len = length;
+ tx_dp->sca.stctrl = CDMAC_BD_STCTRL_SOP | CDMAC_BD_STCTRL_EOP |
+ CDMAC_BD_STCTRL_STOP_ON_END;
+
+ flush_cache((u32)packet, length);
+ flush_cache((u32)tx_dp, sizeof(*tx_dp));
+
+ /* DMA start by writing to respective TAILDESC_PTR */
+ ll_temac->out32(ra[TX_CURDESC_PTR], (int)tx_dp);
+ ll_temac->out32(ra[TX_TAILDESC_PTR], (int)tx_dp);
+
+ /* Find next empty buffer descriptor, preparation for next iteration */
+ tx_idx = (tx_idx + 1) % TX_BUF_CNT;
+ tx_dp = &cdmac_bd.tx[tx_idx];
+
+ do {
+ flush_cache((u32)tx_dp, sizeof(*tx_dp));
+ udelay(1);
+ } while (timeout-- && !(tx_dp->sca.stctrl & CDMAC_BD_STCTRL_COMPLETED));
+
+ if (!timeout) {
+ printf("%s: Timeout\n", __func__);
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+/*
+ * Xilinx xps_ll_temac ethernet driver for u-boot
+ *
+ * SDMA sub-controller interface
+ *
+ * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
+ * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 - 2011 PetaLogix
+ *
+ * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
+ * Copyright (C) 2008 Nissin Systems Co.,Ltd.
+ * March 2008 created
+ *
+ * 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.
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [S]: [0]/ip_documentation/xps_ll_temac.pdf
+ * [A]: [0]/application_notes/xapp1041.pdf
+ */
+#ifndef _XILINX_LL_TEMAC_SDMA_
+#define _XILINX_LL_TEMAC_SDMA_
+
+#include <net.h>
+
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#include <linux/compiler.h>
+
+#if !defined(__BIG_ENDIAN)
+# error LL_TEMAC requires big endianess
+#endif
+
+/*
+ * DMA Buffer Descriptor for CDMAC
+ *
+ * Used for data connection from and to (Rx/Tx) the LocalLink (LL) TEMAC via
+ * the Communications Direct Memory Access Controller (CDMAC) -- one for each.
+ *
+ * overview:
+ * ftp://ftp.xilinx.com/pub/documentation/misc/mpmc_getting_started.pdf
+ *
+ * [1]: [0]/ip_documentation/mpmc.pdf
+ * page 140, DMA Operation Descriptors
+ *
+ * [2]: [0]/user_guides/ug200.pdf
+ * page 229, DMA Controller -- Descriptor Format
+ *
+ * [3]: [0]/ip_documentation/xps_ll_temac.pdf
+ * page 72, Transmit LocalLink Frame Format
+ * page 73, Receive LocalLink Frame Format
+ */
+struct cdmac_bd {
+ struct cdmac_bd *next_p; /* Next Descriptor Pointer */
+ u8 *phys_buf_p; /* Buffer Address */
+ u32 buf_len; /* Buffer Length */
+ union {
+ u8 stctrl; /* Status/Control the DMA transfer */
+ u32 app[5]; /* application specific data */
+ } __packed __aligned(1) sca;
+};
+
+/* CDMAC Descriptor Status and Control (stctrl), [1] p140, [2] p230 */
+#define CDMAC_BD_STCTRL_ERROR (1 << 7)
+#define CDMAC_BD_STCTRL_IRQ_ON_END (1 << 6)
+#define CDMAC_BD_STCTRL_STOP_ON_END (1 << 5)
+#define CDMAC_BD_STCTRL_COMPLETED (1 << 4)
+#define CDMAC_BD_STCTRL_SOP (1 << 3)
+#define CDMAC_BD_STCTRL_EOP (1 << 2)
+#define CDMAC_BD_STCTRL_DMACHBUSY (1 << 1)
+
+/* CDMAC Descriptor APP0: Transmit LocalLink Footer Word 3, [3] p72 */
+#define CDMAC_BD_APP0_TXCSCNTRL (1 << 0)
+
+/* CDMAC Descriptor APP1: Transmit LocalLink Footer Word 4, [3] p73 */
+#define CDMAC_BD_APP1_TXCSBEGIN_POS 16
+#define CDMAC_BD_APP1_TXCSBEGIN_MASK (0xFFFF << CDMAC_BD_APP1_TXCSBEGIN_POS)
+#define CDMAC_BD_APP1_TXCSINSERT_POS 0
+#define CDMAC_BD_APP1_TXCSINSERT_MASK (0xFFFF << CDMAC_BD_APP1_TXCSINSERT_POS)
+
+/* CDMAC Descriptor APP2: Transmit LocalLink Footer Word 5, [3] p73 */
+#define CDMAC_BD_APP2_TXCSINIT_POS 0
+#define CDMAC_BD_APP2_TXCSINIT_MASK (0xFFFF << CDMAC_BD_APP2_TXCSINIT_POS)
+
+/* CDMAC Descriptor APP0: Receive LocalLink Footer Word 3, [3] p73 */
+#define CDMAC_BD_APP0_MADDRU_POS 0
+#define CDMAC_BD_APP0_MADDRU_MASK (0xFFFF << CDMAC_BD_APP0_MADDRU_POS)
+
+/* CDMAC Descriptor APP1: Receive LocalLink Footer Word 4, [3] p74 */
+#define CDMAC_BD_APP1_MADDRL_POS 0
+#define CDMAC_BD_APP1_MADDRL_MASK (~0UL << CDMAC_BD_APP1_MADDRL_POS)
+
+/* CDMAC Descriptor APP2: Receive LocalLink Footer Word 5, [3] p74 */
+#define CDMAC_BD_APP2_BCAST_FRAME (1 << 2)
+#define CDMAC_BD_APP2_IPC_MCAST_FRAME (1 << 1)
+#define CDMAC_BD_APP2_MAC_MCAST_FRAME (1 << 0)
+
+/* CDMAC Descriptor APP3: Receive LocalLink Footer Word 6, [3] p74 */
+#define CDMAC_BD_APP3_TLTPID_POS 16
+#define CDMAC_BD_APP3_TLTPID_MASK (0xFFFF << CDMAC_BD_APP3_TLTPID_POS)
+#define CDMAC_BD_APP3_RXCSRAW_POS 0
+#define CDMAC_BD_APP3_RXCSRAW_MASK (0xFFFF << CDMAC_BD_APP3_RXCSRAW_POS)
+
+/* CDMAC Descriptor APP4: Receive LocalLink Footer Word 7, [3] p74 */
+#define CDMAC_BD_APP4_VLANTAG_POS 16
+#define CDMAC_BD_APP4_VLANTAG_MASK (0xFFFF << CDMAC_BD_APP4_VLANTAG_POS)
+#define CDMAC_BD_APP4_RXBYTECNT_POS 0
+#define CDMAC_BD_APP4_RXBYTECNT_MASK (0x3FFF << CDMAC_BD_APP4_RXBYTECNT_POS)
+
+/*
+ * SDMA Register Definition
+ *
+ * [0]: http://www.xilinx.com/support/documentation
+ *
+ * [1]: [0]/ip_documentation/mpmc.pdf
+ * page 54, SDMA Register Summary
+ * page 160, SDMA Registers
+ *
+ * [2]: [0]/user_guides/ug200.pdf
+ * page 244, DMA Controller -- Programming Interface and Registers
+ */
+#define SDMA_CTRL_REGTYPE u32
+#define SDMA_CTRL_REGSIZE sizeof(SDMA_CTRL_REGTYPE)
+struct sdma_ctrl {
+ /* Transmit Registers */
+ SDMA_CTRL_REGTYPE tx_nxtdesc_ptr; /* TX Next Description Pointer */
+ SDMA_CTRL_REGTYPE tx_curbuf_addr; /* TX Current Buffer Address */
+ SDMA_CTRL_REGTYPE tx_curbuf_length; /* TX Current Buffer Length */
+ SDMA_CTRL_REGTYPE tx_curdesc_ptr; /* TX Current Descriptor Pointer */
+ SDMA_CTRL_REGTYPE tx_taildesc_ptr; /* TX Tail Descriptor Pointer */
+ SDMA_CTRL_REGTYPE tx_chnl_ctrl; /* TX Channel Control */
+ SDMA_CTRL_REGTYPE tx_irq_reg; /* TX Interrupt Register */
+ SDMA_CTRL_REGTYPE tx_chnl_sts; /* TX Status Register */
+ /* Receive Registers */
+ SDMA_CTRL_REGTYPE rx_nxtdesc_ptr; /* RX Next Descriptor Pointer */
+ SDMA_CTRL_REGTYPE rx_curbuf_addr; /* RX Current Buffer Address */
+ SDMA_CTRL_REGTYPE rx_curbuf_length; /* RX Current Buffer Length */
+ SDMA_CTRL_REGTYPE rx_curdesc_ptr; /* RX Current Descriptor Pointer */
+ SDMA_CTRL_REGTYPE rx_taildesc_ptr; /* RX Tail Descriptor Pointer */
+ SDMA_CTRL_REGTYPE rx_chnl_ctrl; /* RX Channel Control */
+ SDMA_CTRL_REGTYPE rx_irq_reg; /* RX Interrupt Register */
+ SDMA_CTRL_REGTYPE rx_chnl_sts; /* RX Status Register */
+ /* Control Registers */
+ SDMA_CTRL_REGTYPE dma_control_reg; /* DMA Control Register */
+};
+
+#define SDMA_CTRL_REGNUMS sizeof(struct sdma_ctrl)/SDMA_CTRL_REGSIZE
+
+/*
+ * DMAC Register Index Enumeration
+ *
+ * [2]: http://www.xilinx.com/support/documentation/user_guides/ug200.pdf
+ * page 244, DMA Controller -- Programming Interface and Registers
+ */
+enum dmac_ctrl {
+ /* Transmit Registers */
+ TX_NXTDESC_PTR = 0, /* TX Next Description Pointer */
+ TX_CURBUF_ADDR, /* TX Current Buffer Address */
+ TX_CURBUF_LENGTH, /* TX Current Buffer Length */
+ TX_CURDESC_PTR, /* TX Current Descriptor Pointer */
+ TX_TAILDESC_PTR, /* TX Tail Descriptor Pointer */
+ TX_CHNL_CTRL, /* TX Channel Control */
+ TX_IRQ_REG, /* TX Interrupt Register */
+ TX_CHNL_STS, /* TX Status Register */
+ /* Receive Registers */
+ RX_NXTDESC_PTR, /* RX Next Descriptor Pointer */
+ RX_CURBUF_ADDR, /* RX Current Buffer Address */
+ RX_CURBUF_LENGTH, /* RX Current Buffer Length */
+ RX_CURDESC_PTR, /* RX Current Descriptor Pointer */
+ RX_TAILDESC_PTR, /* RX Tail Descriptor Pointer */
+ RX_CHNL_CTRL, /* RX Channel Control */
+ RX_IRQ_REG, /* RX Interrupt Register */
+ RX_CHNL_STS, /* RX Status Register */
+ /* Control Registers */
+ DMA_CONTROL_REG /* DMA Control Register */
+};
+
+/* Rx/Tx Channel Control Register (*_chnl_ctrl), [1] p163, [2] p246/p252 */
+#define CHNL_CTRL_ITO_POS 24
+#define CHNL_CTRL_ITO_MASK (0xFF << CHNL_CTRL_ITO_POS)
+#define CHNL_CTRL_IC_POS 16
+#define CHNL_CTRL_IC_MASK (0xFF << CHNL_CTRL_IC_POS)
+#define CHNL_CTRL_MSBADDR_POS 12
+#define CHNL_CTRL_MSBADDR_MASK (0xF << CHNL_CTRL_MSBADDR_POS)
+#define CHNL_CTRL_AME (1 << 11)
+#define CHNL_CTRL_OBWC (1 << 10)
+#define CHNL_CTRL_IOE (1 << 9)
+#define CHNL_CTRL_LIC (1 << 8)
+#define CHNL_CTRL_IE (1 << 7)
+#define CHNL_CTRL_IEE (1 << 2)
+#define CHNL_CTRL_IDE (1 << 1)
+#define CHNL_CTRL_ICE (1 << 0)
+
+/* All interrupt enable bits */
+#define CHNL_CTRL_IRQ_MASK (CHNL_CTRL_IE | \
+ CHNL_CTRL_IEE | \
+ CHNL_CTRL_IDE | \
+ CHNL_CTRL_ICE)
+
+/* Rx/Tx Interrupt Status Register (*_irq_reg), [1] p164, [2] p247/p253 */
+#define IRQ_REG_DTV_POS 24
+#define IRQ_REG_DTV_MASK (0xFF << IRQ_REG_DTV_POS)
+#define IRQ_REG_CCV_POS 16
+#define IRQ_REG_CCV_MASK (0xFF << IRQ_REG_CCV_POS)
+#define IRQ_REG_WRCQ_EMPTY (1 << 14)
+#define IRQ_REG_CIC_POS 10
+#define IRQ_REG_CIC_MASK (0xF << IRQ_REG_CIC_POS)
+#define IRQ_REG_DIC_POS 8
+#define IRQ_REG_DIC_MASK (3 << 8)
+#define IRQ_REG_PLB_RD_NMI (1 << 4)
+#define IRQ_REG_PLB_WR_NMI (1 << 3)
+#define IRQ_REG_EI (1 << 2)
+#define IRQ_REG_DI (1 << 1)
+#define IRQ_REG_CI (1 << 0)
+
+/* All interrupt bits */
+#define IRQ_REG_IRQ_MASK (IRQ_REG_PLB_RD_NMI | \
+ IRQ_REG_PLB_WR_NMI | \
+ IRQ_REG_EI | IRQ_REG_DI | IRQ_REG_CI)
+
+/* Rx/Tx Channel Status Register (*_chnl_sts), [1] p165, [2] p249/p255 */
+#define CHNL_STS_ERROR_TAIL (1 << 21)
+#define CHNL_STS_ERROR_CMP (1 << 20)
+#define CHNL_STS_ERROR_ADDR (1 << 19)
+#define CHNL_STS_ERROR_NXTP (1 << 18)
+#define CHNL_STS_ERROR_CURP (1 << 17)
+#define CHNL_STS_ERROR_BSYWR (1 << 16)
+#define CHNL_STS_ERROR (1 << 7)
+#define CHNL_STS_IOE (1 << 6)
+#define CHNL_STS_SOE (1 << 5)
+#define CHNL_STS_CMPLT (1 << 4)
+#define CHNL_STS_SOP (1 << 3)
+#define CHNL_STS_EOP (1 << 2)
+#define CHNL_STS_EBUSY (1 << 1)
+
+/* DMA Control Register (dma_control_reg), [1] p166, [2] p256 */
+#define DMA_CONTROL_PLBED (1 << 5)
+#define DMA_CONTROL_RXOCEID (1 << 4)
+#define DMA_CONTROL_TXOCEID (1 << 3)
+#define DMA_CONTROL_TPE (1 << 2)
+#define DMA_CONTROL_RESET (1 << 0)
+
+#if defined(CONFIG_XILINX_440) || defined(CONFIG_XILINX_405)
+
+/* Xilinx Device Control Register (DCR) in/out accessors */
+unsigned ll_temac_xldcr_in32(phys_addr_t addr);
+void ll_temac_xldcr_out32(phys_addr_t addr, unsigned value);
+
+/* collect all register addresses for Xilinx DCR in/out accessors */
+void ll_temac_collect_xldcr_sdma_reg_addr(struct eth_device *dev);
+
+#endif /* CONFIG_XILINX_440 || CONFIG_XILINX_405 */
+
+/* Xilinx Processor Local Bus (PLB) in/out accessors */
+unsigned ll_temac_xlplb_in32(phys_addr_t base);
+void ll_temac_xlplb_out32(phys_addr_t base, unsigned value);
+
+/* collect all register addresses for Xilinx PLB in/out accessors */
+void ll_temac_collect_xlplb_sdma_reg_addr(struct eth_device *dev);
+
+/* initialize both Rx/Tx buffer descriptors */
+int ll_temac_init_sdma(struct eth_device *dev);
+
+/* halt both Rx/Tx transfers */
+int ll_temac_halt_sdma(struct eth_device *dev);
+
+/* reset SDMA and IRQ, disable interrupts and errors */
+int ll_temac_reset_sdma(struct eth_device *dev);
+
+/* receive buffered data from SDMA (polling ISR) */
+int ll_temac_recv_sdma(struct eth_device *dev);
+
+/* send buffered data to SDMA */
+int ll_temac_send_sdma(struct eth_device *dev, volatile void *packet,
+ int length);
+
+#endif /* _XILINX_LL_TEMAC_SDMA_ */
unsigned long dma_addr);
int xilinx_emaclite_initialize(bd_t *bis, unsigned long base_addr,
int txpp, int rxpp);
+int xilinx_ll_temac_eth_init(bd_t *bis, unsigned long base_addr, int flags,
+ unsigned long ctrl_addr);
+
+/*
+ * As long as the Xilinx xps_ll_temac ethernet driver has not its own interface
+ * exported by a public hader file, we need a global definition at this point.
+ */
+#if defined(CONFIG_XILINX_LL_TEMAC)
+#define XILINX_LL_TEMAC_M_FIFO 0 /* use FIFO Ctrl */
+#define XILINX_LL_TEMAC_M_SDMA_PLB (1 << 0)/* use SDMA Ctrl via PLB */
+#define XILINX_LL_TEMAC_M_SDMA_DCR (1 << 1)/* use SDMA Ctrl via DCR */
+#endif
/* Boards with PCI network controllers can call this from their board_eth_init()
* function to initialize whatever's on board.
projects / karo-tx-uboot.git / commitdiff