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u-boot/drivers/net/4xx_enet.c
Robert P. J. Day fc0b5948e0 Various, accumulated typos collected from around the tree. 
Fix various misspellings of:

 * deprecated
 * partition
 * preceding,preceded
 * preparation
 * its versus it's
 * export
 * existing
 * scenario
 * redundant
 * remaining
 * value
 * architecture

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2016-10-06 20:57:40 -04:00

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/*
* SPDX-License-Identifier: GPL-2.0 IBM-pibs
*/
/*-----------------------------------------------------------------------------+
*
* File Name: enetemac.c
*
* Function: Device driver for the ethernet EMAC3 macro on the 405GP.
*
* Author: Mark Wisner
*
* Change Activity-
*
* Date Description of Change BY
* --------- --------------------- ---
* 05-May-99 Created MKW
* 27-Jun-99 Clean up JWB
* 16-Jul-99 Added MAL error recovery and better IP packet handling MKW
* 29-Jul-99 Added Full duplex support MKW
* 06-Aug-99 Changed names for Mal CR reg MKW
* 23-Aug-99 Turned off SYE when running at 10Mbs MKW
* 24-Aug-99 Marked descriptor empty after call_xlc MKW
* 07-Sep-99 Set MAL RX buffer size reg to ENET_MAX_MTU_ALIGNED / 16 MCG
* to avoid chaining maximum sized packets. Push starting
* RX descriptor address up to the next cache line boundary.
* 16-Jan-00 Added support for booting with IP of 0x0 MKW
* 15-Mar-00 Updated enetInit() to enable broadcast addresses in the
* EMAC0_RXM register. JWB
* 12-Mar-01 anne-sophie.harnois@nextream.fr
* - Variables are compatible with those already defined in
* include/net.h
* - Receive buffer descriptor ring is used to send buffers
* to the user
* - Info print about send/received/handled packet number if
* INFO_405_ENET is set
* 17-Apr-01 stefan.roese@esd-electronics.com
* - MAL reset in "eth_halt" included
* - Enet speed and duplex output now in one line
* 08-May-01 stefan.roese@esd-electronics.com
* - MAL error handling added (eth_init called again)
* 13-Nov-01 stefan.roese@esd-electronics.com
* - Set IST bit in EMAC0_MR1 reg upon 100MBit or full duplex
* 04-Jan-02 stefan.roese@esd-electronics.com
* - Wait for PHY auto negotiation to complete added
* 06-Feb-02 stefan.roese@esd-electronics.com
* - Bug fixed in waiting for auto negotiation to complete
* 26-Feb-02 stefan.roese@esd-electronics.com
* - rx and tx buffer descriptors now allocated (no fixed address
* used anymore)
* 17-Jun-02 stefan.roese@esd-electronics.com
* - MAL error debug printf 'M' removed (rx de interrupt may
* occur upon many incoming packets with only 4 rx buffers).
*-----------------------------------------------------------------------------*
* 17-Nov-03 travis.sawyer@sandburst.com
* - ported from 405gp_enet.c to utilized upto 4 EMAC ports
* in the 440GX. This port should work with the 440GP
* (2 EMACs) also
* 15-Aug-05 sr@denx.de
* - merged 405gp_enet.c and 440gx_enet.c to generic 4xx_enet.c
now handling all 4xx cpu's.
*-----------------------------------------------------------------------------*/
#include <config.h>
#include <common.h>
#include <net.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/cache.h>
#include <asm/mmu.h>
#include <commproc.h>
#include <asm/ppc4xx.h>
#include <asm/ppc4xx-emac.h>
#include <asm/ppc4xx-mal.h>
#include <miiphy.h>
#include <malloc.h>
#include <linux/compiler.h>
#if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
#error "CONFIG_MII has to be defined!"
#endif
#define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
#define PHY_AUTONEGOTIATE_TIMEOUT 5000 /* 5000 ms autonegotiate timeout */
/* Ethernet Transmit and Receive Buffers */
/* AS.HARNOIS
* In the same way ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
* PKTSIZE and PKTSIZE_ALIGN (include/net.h)
*/
#define ENET_MAX_MTU PKTSIZE
#define ENET_MAX_MTU_ALIGNED PKTSIZE_ALIGN
/*-----------------------------------------------------------------------------+
* Defines for MAL/EMAC interrupt conditions as reported in the UIC (Universal
* Interrupt Controller).
*-----------------------------------------------------------------------------*/
#define ETH_IRQ_NUM(dev) (VECNUM_ETH0 + ((dev) * VECNUM_ETH1_OFFS))
#if defined(CONFIG_HAS_ETH3)
#if !defined(CONFIG_440GX)
#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)) || \
UIC_MASK(ETH_IRQ_NUM(2)) || UIC_MASK(ETH_IRQ_NUM(3)))
#else
/* Unfortunately 440GX spreads EMAC interrupts on multiple UIC's */
#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)))
#define UIC_ETHxB (UIC_MASK(ETH_IRQ_NUM(2)) || UIC_MASK(ETH_IRQ_NUM(3)))
#endif /* !defined(CONFIG_440GX) */
#elif defined(CONFIG_HAS_ETH2)
#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)) || \
UIC_MASK(ETH_IRQ_NUM(2)))
#elif defined(CONFIG_HAS_ETH1)
#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)))
#else
#define UIC_ETHx UIC_MASK(ETH_IRQ_NUM(0))
#endif
/*
* Define a default version for UIC_ETHxB for non 440GX so that we can
* use common code for all 4xx variants
*/
#if !defined(UIC_ETHxB)
#define UIC_ETHxB 0
#endif
#define UIC_MAL_SERR UIC_MASK(VECNUM_MAL_SERR)
#define UIC_MAL_TXDE UIC_MASK(VECNUM_MAL_TXDE)
#define UIC_MAL_RXDE UIC_MASK(VECNUM_MAL_RXDE)
#define UIC_MAL_TXEOB UIC_MASK(VECNUM_MAL_TXEOB)
#define UIC_MAL_RXEOB UIC_MASK(VECNUM_MAL_RXEOB)
#define MAL_UIC_ERR (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)
#define MAL_UIC_DEF (UIC_MAL_RXEOB | MAL_UIC_ERR)
/*
* We have 3 different interrupt types:
* - MAL interrupts indicating successful transfer
* - MAL error interrupts indicating MAL related errors
* - EMAC interrupts indicating EMAC related errors
*
* All those interrupts can be on different UIC's, but since
* now at least all interrupts from one type are on the same
* UIC. Only exception is 440GX where the EMAC interrupts are
* spread over two UIC's!
*/
#if defined(CONFIG_440GX)
#define UIC_BASE_MAL UIC1_DCR_BASE
#define UIC_BASE_MAL_ERR UIC2_DCR_BASE
#define UIC_BASE_EMAC UIC2_DCR_BASE
#define UIC_BASE_EMAC_B UIC3_DCR_BASE
#else
#define UIC_BASE_MAL (UIC0_DCR_BASE + (UIC_NR(VECNUM_MAL_TXEOB) * 0x10))
#define UIC_BASE_MAL_ERR (UIC0_DCR_BASE + (UIC_NR(VECNUM_MAL_SERR) * 0x10))
#define UIC_BASE_EMAC (UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(0)) * 0x10))
#define UIC_BASE_EMAC_B (UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(0)) * 0x10))
#endif
#undef INFO_4XX_ENET
#define BI_PHYMODE_NONE 0
#define BI_PHYMODE_ZMII 1
#define BI_PHYMODE_RGMII 2
#define BI_PHYMODE_GMII 3
#define BI_PHYMODE_RTBI 4
#define BI_PHYMODE_TBI 5
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
#define BI_PHYMODE_SMII 6
#define BI_PHYMODE_MII 7
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
#define BI_PHYMODE_RMII 8
#endif
#endif
#define BI_PHYMODE_SGMII 9
#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
#define SDR0_MFR_ETH_CLK_SEL_V(n) ((0x01<<27) / (n+1))
#endif
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
#define SDR0_ETH_CFG_CLK_SEL_V(n) (0x01 << (8 + n))
#endif
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
#define MAL_RX_CHAN_MUL 8 /* 460EX/GT uses MAL channel 8 for EMAC1 */
#else
#define MAL_RX_CHAN_MUL 1
#endif
/*--------------------------------------------------------------------+
* Fixed PHY (PHY-less) support for Ethernet Ports.
*--------------------------------------------------------------------*/
/*
* Some boards do not have a PHY for each ethernet port. These ports
* are known as Fixed PHY (or PHY-less) ports. For such ports, set
* the appropriate CONFIG_PHY_ADDR equal to CONFIG_FIXED_PHY and
* then define CONFIG_SYS_FIXED_PHY_PORTS to define what the speed and
* duplex should be for these ports in the board configuration
* file.
*
* For Example:
* #define CONFIG_FIXED_PHY 0xFFFFFFFF
*
* #define CONFIG_PHY_ADDR CONFIG_FIXED_PHY
* #define CONFIG_PHY1_ADDR 1
* #define CONFIG_PHY2_ADDR CONFIG_FIXED_PHY
* #define CONFIG_PHY3_ADDR 3
*
* #define CONFIG_SYS_FIXED_PHY_PORT(devnum,speed,duplex) \
* {devnum, speed, duplex},
*
* #define CONFIG_SYS_FIXED_PHY_PORTS \
* CONFIG_SYS_FIXED_PHY_PORT(0,1000,FULL) \
* CONFIG_SYS_FIXED_PHY_PORT(2,100,HALF)
*/
#ifndef CONFIG_FIXED_PHY
#define CONFIG_FIXED_PHY 0xFFFFFFFF /* Fixed PHY (PHY-less) */
#endif
#ifndef CONFIG_SYS_FIXED_PHY_PORTS
#define CONFIG_SYS_FIXED_PHY_PORTS /* default is an empty array */
#endif
struct fixed_phy_port {
unsigned int devnum; /* ethernet port */
unsigned int speed; /* specified speed 10,100 or 1000 */
unsigned int duplex; /* specified duplex FULL or HALF */
};
static const struct fixed_phy_port fixed_phy_port[] = {
CONFIG_SYS_FIXED_PHY_PORTS /* defined in board configuration file */
};
/*-----------------------------------------------------------------------------+
* Global variables. TX and RX descriptors and buffers.
*-----------------------------------------------------------------------------*/
/*
* Get count of EMAC devices (doesn't have to be the max. possible number
* supported by the cpu)
*
* CONFIG_BOARD_EMAC_COUNT added so now a "dynamic" way to configure the
* EMAC count is possible. As it is needed for the Kilauea/Haleakala
* 405EX/405EXr eval board, using the same binary.
*/
#if defined(CONFIG_BOARD_EMAC_COUNT)
#define LAST_EMAC_NUM board_emac_count()
#else /* CONFIG_BOARD_EMAC_COUNT */
#if defined(CONFIG_HAS_ETH3)
#define LAST_EMAC_NUM 4
#elif defined(CONFIG_HAS_ETH2)
#define LAST_EMAC_NUM 3
#elif defined(CONFIG_HAS_ETH1)
#define LAST_EMAC_NUM 2
#else
#define LAST_EMAC_NUM 1
#endif
#endif /* CONFIG_BOARD_EMAC_COUNT */
/* normal boards start with EMAC0 */
#if !defined(CONFIG_EMAC_NR_START)
#define CONFIG_EMAC_NR_START 0
#endif
#define MAL_RX_DESC_SIZE 2048
#define MAL_TX_DESC_SIZE 2048
#define MAL_ALLOC_SIZE (MAL_TX_DESC_SIZE + MAL_RX_DESC_SIZE)
/*-----------------------------------------------------------------------------+
* Prototypes and externals.
*-----------------------------------------------------------------------------*/
static void enet_rcv (struct eth_device *dev, unsigned long malisr);
int enetInt (struct eth_device *dev);
static void mal_err (struct eth_device *dev, unsigned long isr,
unsigned long uic, unsigned long maldef,
unsigned long mal_errr);
static void emac_err (struct eth_device *dev, unsigned long isr);
extern int phy_setup_aneg (char *devname, unsigned char addr);
int emac4xx_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg);
int emac4xx_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
u16 value);
int board_emac_count(void);
static void emac_loopback_enable(EMAC_4XX_HW_PST hw_p)
{
#if defined(CONFIG_440SPE) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_405EX)
u32 val;
mfsdr(SDR0_MFR, val);
val |= SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
mtsdr(SDR0_MFR, val);
#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
u32 val;
mfsdr(SDR0_ETH_CFG, val);
val |= SDR0_ETH_CFG_CLK_SEL_V(hw_p->devnum);
mtsdr(SDR0_ETH_CFG, val);
#endif
}
static void emac_loopback_disable(EMAC_4XX_HW_PST hw_p)
{
#if defined(CONFIG_440SPE) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_405EX)
u32 val;
mfsdr(SDR0_MFR, val);
val &= ~SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
mtsdr(SDR0_MFR, val);
#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
u32 val;
mfsdr(SDR0_ETH_CFG, val);
val &= ~SDR0_ETH_CFG_CLK_SEL_V(hw_p->devnum);
mtsdr(SDR0_ETH_CFG, val);
#endif
}
/*-----------------------------------------------------------------------------+
| ppc_4xx_eth_halt
| Disable MAL channel, and EMACn
+-----------------------------------------------------------------------------*/
static void ppc_4xx_eth_halt (struct eth_device *dev)
{
EMAC_4XX_HW_PST hw_p = dev->priv;
u32 val = 10000;
out_be32((void *)EMAC0_IER + hw_p->hw_addr, 0x00000000); /* disable emac interrupts */
/* 1st reset MAL channel */
/* Note: writing a 0 to a channel has no effect */
#if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
mtdcr (MAL0_TXCARR, (MAL_CR_MMSR >> (hw_p->devnum * 2)));
#else
mtdcr (MAL0_TXCARR, (MAL_CR_MMSR >> hw_p->devnum));
#endif
mtdcr (MAL0_RXCARR, (MAL_CR_MMSR >> hw_p->devnum));
/* wait for reset */
while (mfdcr (MAL0_RXCASR) & (MAL_CR_MMSR >> hw_p->devnum)) {
udelay (1000); /* Delay 1 MS so as not to hammer the register */
val--;
if (val == 0)
break;
}
/* provide clocks for EMAC internal loopback */
emac_loopback_enable(hw_p);
/* EMAC RESET */
out_be32((void *)EMAC0_MR0 + hw_p->hw_addr, EMAC_MR0_SRST);
/* remove clocks for EMAC internal loopback */
emac_loopback_disable(hw_p);
#ifndef CONFIG_NETCONSOLE
hw_p->print_speed = 1; /* print speed message again next time */
#endif
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
/* don't bypass the TAHOE0/TAHOE1 cores for Linux */
mfsdr(SDR0_ETH_CFG, val);
val &= ~(SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
mtsdr(SDR0_ETH_CFG, val);
#endif
return;
}
#if defined (CONFIG_440GX)
int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
{
unsigned long pfc1;
unsigned long zmiifer;
unsigned long rmiifer;
mfsdr(SDR0_PFC1, pfc1);
pfc1 = SDR0_PFC1_EPS_DECODE(pfc1);
zmiifer = 0;
rmiifer = 0;
switch (pfc1) {
case 1:
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(2);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(3);
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_ZMII;
bis->bi_phymode[2] = BI_PHYMODE_ZMII;
bis->bi_phymode[3] = BI_PHYMODE_ZMII;
break;
case 2:
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(2);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(3);
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_ZMII;
bis->bi_phymode[2] = BI_PHYMODE_ZMII;
bis->bi_phymode[3] = BI_PHYMODE_ZMII;
break;
case 3:
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
bis->bi_phymode[2] = BI_PHYMODE_RGMII;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 4:
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V (2);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V (3);
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_ZMII;
bis->bi_phymode[2] = BI_PHYMODE_RGMII;
bis->bi_phymode[3] = BI_PHYMODE_RGMII;
break;
case 5:
zmiifer |= ZMII_FER_SMII << ZMII_FER_V (0);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V (1);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V (2);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_ZMII;
bis->bi_phymode[2] = BI_PHYMODE_ZMII;
bis->bi_phymode[3] = BI_PHYMODE_RGMII;
break;
case 6:
zmiifer |= ZMII_FER_SMII << ZMII_FER_V (0);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V (1);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_ZMII;
bis->bi_phymode[2] = BI_PHYMODE_RGMII;
break;
case 0:
default:
zmiifer = ZMII_FER_MII << ZMII_FER_V(devnum);
rmiifer = 0x0;
bis->bi_phymode[0] = BI_PHYMODE_ZMII;
bis->bi_phymode[1] = BI_PHYMODE_ZMII;
bis->bi_phymode[2] = BI_PHYMODE_ZMII;
bis->bi_phymode[3] = BI_PHYMODE_ZMII;
break;
}
/* Ensure we setup mdio for this devnum and ONLY this devnum */
zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
out_be32((void *)ZMII0_FER, zmiifer);
out_be32((void *)RGMII_FER, rmiifer);
return ((int)pfc1);
}
#endif /* CONFIG_440_GX */
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
{
unsigned long zmiifer=0x0;
unsigned long pfc1;
mfsdr(SDR0_PFC1, pfc1);
pfc1 &= SDR0_PFC1_SELECT_MASK;
switch (pfc1) {
case SDR0_PFC1_SELECT_CONFIG_2:
/* 1 x GMII port */
out_be32((void *)ZMII0_FER, 0x00);
out_be32((void *)RGMII_FER, 0x00000037);
bis->bi_phymode[0] = BI_PHYMODE_GMII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
break;
case SDR0_PFC1_SELECT_CONFIG_4:
/* 2 x RGMII ports */
out_be32((void *)ZMII0_FER, 0x00);
out_be32((void *)RGMII_FER, 0x00000055);
bis->bi_phymode[0] = BI_PHYMODE_RGMII;
bis->bi_phymode[1] = BI_PHYMODE_RGMII;
break;
case SDR0_PFC1_SELECT_CONFIG_6:
/* 2 x SMII ports */
out_be32((void *)ZMII0_FER,
((ZMII_FER_SMII) << ZMII_FER_V(0)) |
((ZMII_FER_SMII) << ZMII_FER_V(1)));
out_be32((void *)RGMII_FER, 0x00000000);
bis->bi_phymode[0] = BI_PHYMODE_SMII;
bis->bi_phymode[1] = BI_PHYMODE_SMII;
break;
case SDR0_PFC1_SELECT_CONFIG_1_2:
/* only 1 x MII supported */
out_be32((void *)ZMII0_FER, (ZMII_FER_MII) << ZMII_FER_V(0));
out_be32((void *)RGMII_FER, 0x00000000);
bis->bi_phymode[0] = BI_PHYMODE_MII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
break;
default:
break;
}
/* Ensure we setup mdio for this devnum and ONLY this devnum */
zmiifer = in_be32((void *)ZMII0_FER);
zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
out_be32((void *)ZMII0_FER, zmiifer);
return ((int)0x0);
}
#endif /* CONFIG_440EPX */
#if defined(CONFIG_405EX)
int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
{
u32 rgmiifer = 0;
/*
* The 405EX(r)'s RGMII bridge can operate in one of several
* modes, only one of which (2 x RGMII) allows the
* simultaneous use of both EMACs on the 405EX.
*/
switch (CONFIG_EMAC_PHY_MODE) {
case EMAC_PHY_MODE_NONE:
/* No ports */
rgmiifer |= RGMII_FER_DIS << 0;
rgmiifer |= RGMII_FER_DIS << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_NONE;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
break;
case EMAC_PHY_MODE_NONE_RGMII:
/* 1 x RGMII port on channel 0 */
rgmiifer |= RGMII_FER_RGMII << 0;
rgmiifer |= RGMII_FER_DIS << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_RGMII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
break;
case EMAC_PHY_MODE_RGMII_NONE:
/* 1 x RGMII port on channel 1 */
rgmiifer |= RGMII_FER_DIS << 0;
rgmiifer |= RGMII_FER_RGMII << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_NONE;
bis->bi_phymode[1] = BI_PHYMODE_RGMII;
break;
case EMAC_PHY_MODE_RGMII_RGMII:
/* 2 x RGMII ports */
rgmiifer |= RGMII_FER_RGMII << 0;
rgmiifer |= RGMII_FER_RGMII << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_RGMII;
bis->bi_phymode[1] = BI_PHYMODE_RGMII;
break;
case EMAC_PHY_MODE_NONE_GMII:
/* 1 x GMII port on channel 0 */
rgmiifer |= RGMII_FER_GMII << 0;
rgmiifer |= RGMII_FER_DIS << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_GMII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
break;
case EMAC_PHY_MODE_NONE_MII:
/* 1 x MII port on channel 0 */
rgmiifer |= RGMII_FER_MII << 0;
rgmiifer |= RGMII_FER_DIS << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_MII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
break;
case EMAC_PHY_MODE_GMII_NONE:
/* 1 x GMII port on channel 1 */
rgmiifer |= RGMII_FER_DIS << 0;
rgmiifer |= RGMII_FER_GMII << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_NONE;
bis->bi_phymode[1] = BI_PHYMODE_GMII;
break;
case EMAC_PHY_MODE_MII_NONE:
/* 1 x MII port on channel 1 */
rgmiifer |= RGMII_FER_DIS << 0;
rgmiifer |= RGMII_FER_MII << 4;
out_be32((void *)RGMII_FER, rgmiifer);
bis->bi_phymode[0] = BI_PHYMODE_NONE;
bis->bi_phymode[1] = BI_PHYMODE_MII;
break;
default:
break;
}
/* Ensure we setup mdio for this devnum and ONLY this devnum */
rgmiifer = in_be32((void *)RGMII_FER);
rgmiifer |= (1 << (19-devnum));
out_be32((void *)RGMII_FER, rgmiifer);
return ((int)0x0);
}
#endif /* CONFIG_405EX */
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
{
u32 eth_cfg;
u32 zmiifer; /* ZMII0_FER reg. */
u32 rmiifer; /* RGMII0_FER reg. Bridge 0 */
u32 rmiifer1; /* RGMII0_FER reg. Bridge 1 */
int mode;
zmiifer = 0;
rmiifer = 0;
rmiifer1 = 0;
#if defined(CONFIG_460EX)
mode = 9;
mfsdr(SDR0_ETH_CFG, eth_cfg);
if (((eth_cfg & SDR0_ETH_CFG_SGMII0_ENABLE) > 0) &&
((eth_cfg & SDR0_ETH_CFG_SGMII1_ENABLE) > 0))
mode = 11; /* config SGMII */
#else
mode = 10;
mfsdr(SDR0_ETH_CFG, eth_cfg);
if (((eth_cfg & SDR0_ETH_CFG_SGMII0_ENABLE) > 0) &&
((eth_cfg & SDR0_ETH_CFG_SGMII1_ENABLE) > 0) &&
((eth_cfg & SDR0_ETH_CFG_SGMII2_ENABLE) > 0))
mode = 12; /* config SGMII */
#endif
/* TODO:
* NOTE: 460GT has 2 RGMII bridge cores:
* emac0 ------ RGMII0_BASE
* |
* emac1 -----+
*
* emac2 ------ RGMII1_BASE
* |
* emac3 -----+
*
* 460EX has 1 RGMII bridge core:
* and RGMII1_BASE is disabled
* emac0 ------ RGMII0_BASE
* |
* emac1 -----+
*/
/*
* Right now only 2*RGMII is supported. Please extend when needed.
* sr - 2008-02-19
* Add SGMII support.
* vg - 2008-07-28
*/
switch (mode) {
case 1:
/* 1 MII - 460EX */
/* GMC0 EMAC4_0, ZMII Bridge */
zmiifer |= ZMII_FER_MII << ZMII_FER_V(0);
bis->bi_phymode[0] = BI_PHYMODE_MII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 2:
/* 2 MII - 460GT */
/* GMC0 EMAC4_0, GMC1 EMAC4_2, ZMII Bridge */
zmiifer |= ZMII_FER_MII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_MII << ZMII_FER_V(2);
bis->bi_phymode[0] = BI_PHYMODE_MII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
bis->bi_phymode[2] = BI_PHYMODE_MII;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 3:
/* 2 RMII - 460EX */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, ZMII Bridge */
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
bis->bi_phymode[0] = BI_PHYMODE_RMII;
bis->bi_phymode[1] = BI_PHYMODE_RMII;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 4:
/* 4 RMII - 460GT */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, GMC1 EMAC4_2, GMC1, EMAC4_3 */
/* ZMII Bridge */
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(2);
zmiifer |= ZMII_FER_RMII << ZMII_FER_V(3);
bis->bi_phymode[0] = BI_PHYMODE_RMII;
bis->bi_phymode[1] = BI_PHYMODE_RMII;
bis->bi_phymode[2] = BI_PHYMODE_RMII;
bis->bi_phymode[3] = BI_PHYMODE_RMII;
break;
case 5:
/* 2 SMII - 460EX */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, ZMII Bridge */
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
bis->bi_phymode[0] = BI_PHYMODE_SMII;
bis->bi_phymode[1] = BI_PHYMODE_SMII;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 6:
/* 4 SMII - 460GT */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, GMC0 EMAC4_3, GMC0 EMAC4_3 */
/* ZMII Bridge */
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(2);
zmiifer |= ZMII_FER_SMII << ZMII_FER_V(3);
bis->bi_phymode[0] = BI_PHYMODE_SMII;
bis->bi_phymode[1] = BI_PHYMODE_SMII;
bis->bi_phymode[2] = BI_PHYMODE_SMII;
bis->bi_phymode[3] = BI_PHYMODE_SMII;
break;
case 7:
/* This is the default mode that we want for board bringup - Maple */
/* 1 GMII - 460EX */
/* GMC0 EMAC4_0, RGMII Bridge 0 */
rmiifer |= RGMII_FER_MDIO(0);
if (devnum == 0) {
rmiifer |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC0 */
bis->bi_phymode[0] = BI_PHYMODE_GMII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
} else {
rmiifer |= RGMII_FER_GMII << RGMII_FER_V(3); /* CH1CFG - EMAC1 */
bis->bi_phymode[0] = BI_PHYMODE_NONE;
bis->bi_phymode[1] = BI_PHYMODE_GMII;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
}
break;
case 8:
/* 2 GMII - 460GT */
/* GMC0 EMAC4_0, RGMII Bridge 0 */
/* GMC1 EMAC4_2, RGMII Bridge 1 */
rmiifer |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC0 */
rmiifer1 |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC2 */
rmiifer |= RGMII_FER_MDIO(0); /* enable MDIO - EMAC0 */
rmiifer1 |= RGMII_FER_MDIO(0); /* enable MDIO - EMAC2 */
bis->bi_phymode[0] = BI_PHYMODE_GMII;
bis->bi_phymode[1] = BI_PHYMODE_NONE;
bis->bi_phymode[2] = BI_PHYMODE_GMII;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 9:
/* 2 RGMII - 460EX */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
rmiifer |= RGMII_FER_MDIO(0); /* enable MDIO - EMAC0 */
bis->bi_phymode[0] = BI_PHYMODE_RGMII;
bis->bi_phymode[1] = BI_PHYMODE_RGMII;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 10:
/* 4 RGMII - 460GT */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
/* GMC1 EMAC4_2, GMC1 EMAC4_3, RGMII Bridge 1 */
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
rmiifer1 |= RGMII_FER_RGMII << RGMII_FER_V(2);
rmiifer1 |= RGMII_FER_RGMII << RGMII_FER_V(3);
bis->bi_phymode[0] = BI_PHYMODE_RGMII;
bis->bi_phymode[1] = BI_PHYMODE_RGMII;
bis->bi_phymode[2] = BI_PHYMODE_RGMII;
bis->bi_phymode[3] = BI_PHYMODE_RGMII;
break;
case 11:
/* 2 SGMII - 460EX */
bis->bi_phymode[0] = BI_PHYMODE_SGMII;
bis->bi_phymode[1] = BI_PHYMODE_SGMII;
bis->bi_phymode[2] = BI_PHYMODE_NONE;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
case 12:
/* 3 SGMII - 460GT */
bis->bi_phymode[0] = BI_PHYMODE_SGMII;
bis->bi_phymode[1] = BI_PHYMODE_SGMII;
bis->bi_phymode[2] = BI_PHYMODE_SGMII;
bis->bi_phymode[3] = BI_PHYMODE_NONE;
break;
default:
break;
}
/* Set EMAC for MDIO */
mfsdr(SDR0_ETH_CFG, eth_cfg);
eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
mtsdr(SDR0_ETH_CFG, eth_cfg);
out_be32((void *)RGMII_FER, rmiifer);
#if defined(CONFIG_460GT)
out_be32((void *)RGMII_FER + RGMII1_BASE_OFFSET, rmiifer1);
#endif
/* bypass the TAHOE0/TAHOE1 cores for U-Boot */
mfsdr(SDR0_ETH_CFG, eth_cfg);
eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
mtsdr(SDR0_ETH_CFG, eth_cfg);
return 0;
}
#endif /* CONFIG_460EX || CONFIG_460GT */
static inline void *malloc_aligned(u32 size, u32 align)
{
return (void *)(((u32)malloc(size + align) + align - 1) &
~(align - 1));
}
static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
{
int i;
unsigned long reg = 0;
unsigned long msr;
unsigned long speed;
unsigned long duplex;
unsigned long failsafe;
unsigned mode_reg;
unsigned short devnum;
unsigned short reg_short;
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
u32 opbfreq;
sys_info_t sysinfo;
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
__maybe_unused int ethgroup = -1;
#endif
#endif
u32 bd_cached;
u32 bd_uncached = 0;
#ifdef CONFIG_4xx_DCACHE
static u32 last_used_ea = 0;
#endif
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
int rgmii_channel;
#endif
EMAC_4XX_HW_PST hw_p = dev->priv;
/* before doing anything, figure out if we have a MAC address */
/* if not, bail */
if (memcmp (dev->enetaddr, "\0\0\0\0\0\0", 6) == 0) {
printf("ERROR: ethaddr not set!\n");
return -1;
}
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
/* Need to get the OPB frequency so we can access the PHY */
get_sys_info (&sysinfo);
#endif
msr = mfmsr ();
mtmsr (msr & ~(MSR_EE)); /* disable interrupts */
devnum = hw_p->devnum;
#ifdef INFO_4XX_ENET
/* AS.HARNOIS
* We should have :
* hw_p->stats.pkts_handled <= hw_p->stats.pkts_rx <= hw_p->stats.pkts_handled+PKTBUFSRX
* In the most cases hw_p->stats.pkts_handled = hw_p->stats.pkts_rx, but it
* is possible that new packets (without relationship with
* current transfer) have got the time to arrived before
* netloop calls eth_halt
*/
printf ("About preceding transfer (eth%d):\n"
"- Sent packet number %d\n"
"- Received packet number %d\n"
"- Handled packet number %d\n",
hw_p->devnum,
hw_p->stats.pkts_tx,
hw_p->stats.pkts_rx, hw_p->stats.pkts_handled);
hw_p->stats.pkts_tx = 0;
hw_p->stats.pkts_rx = 0;
hw_p->stats.pkts_handled = 0;
hw_p->print_speed = 1; /* print speed message again next time */
#endif
hw_p->tx_err_index = 0; /* Transmit Error Index for tx_err_log */
hw_p->rx_err_index = 0; /* Receive Error Index for rx_err_log */
hw_p->rx_slot = 0; /* MAL Receive Slot */
hw_p->rx_i_index = 0; /* Receive Interrupt Queue Index */
hw_p->rx_u_index = 0; /* Receive User Queue Index */
hw_p->tx_slot = 0; /* MAL Transmit Slot */
hw_p->tx_i_index = 0; /* Transmit Interrupt Queue Index */
hw_p->tx_u_index = 0; /* Transmit User Queue Index */
#if defined(CONFIG_440) && !defined(CONFIG_440SP) && !defined(CONFIG_440SPE)
/* set RMII mode */
/* NOTE: 440GX spec states that mode is mutually exclusive */
/* NOTE: Therefore, disable all other EMACS, since we handle */
/* NOTE: only one emac at a time */
reg = 0;
out_be32((void *)ZMII0_FER, 0);
udelay (100);
#if defined(CONFIG_440GP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
out_be32((void *)ZMII0_FER, (ZMII_FER_RMII | ZMII_FER_MDI) << ZMII_FER_V (devnum));
#elif defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT)
ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
#endif
out_be32((void *)ZMII0_SSR, ZMII0_SSR_SP << ZMII0_SSR_V(devnum));
#endif /* defined(CONFIG_440) && !defined(CONFIG_440SP) */
#if defined(CONFIG_405EX)
ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
#endif
sync();
/* provide clocks for EMAC internal loopback */
emac_loopback_enable(hw_p);
/* EMAC RESET */
out_be32((void *)EMAC0_MR0 + hw_p->hw_addr, EMAC_MR0_SRST);
/* remove clocks for EMAC internal loopback */
emac_loopback_disable(hw_p);
failsafe = 1000;
while ((in_be32((void *)EMAC0_MR0 + hw_p->hw_addr) & (EMAC_MR0_SRST)) && failsafe) {
udelay (1000);
failsafe--;
}
if (failsafe <= 0)
printf("\nProblem resetting EMAC!\n");
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
/* Whack the M1 register */
mode_reg = 0x0;
mode_reg &= ~0x00000038;
opbfreq = sysinfo.freqOPB / 1000000;
if (opbfreq <= 50);
else if (opbfreq <= 66)
mode_reg |= EMAC_MR1_OBCI_66;
else if (opbfreq <= 83)
mode_reg |= EMAC_MR1_OBCI_83;
else if (opbfreq <= 100)
mode_reg |= EMAC_MR1_OBCI_100;
else
mode_reg |= EMAC_MR1_OBCI_GT100;
out_be32((void *)EMAC0_MR1 + hw_p->hw_addr, mode_reg);
#endif /* defined(CONFIG_440GX) || defined(CONFIG_440SP) */
#if defined(CONFIG_GPCS_PHY_ADDR) || defined(CONFIG_GPCS_PHY1_ADDR) || \
defined(CONFIG_GPCS_PHY2_ADDR) || defined(CONFIG_GPCS_PHY3_ADDR)
if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
/*
* In SGMII mode, GPCS access is needed for
* communication with the internal SGMII SerDes.
*/
switch (devnum) {
#if defined(CONFIG_GPCS_PHY_ADDR)
case 0:
reg = CONFIG_GPCS_PHY_ADDR;
break;
#endif
#if defined(CONFIG_GPCS_PHY1_ADDR)
case 1:
reg = CONFIG_GPCS_PHY1_ADDR;
break;
#endif
#if defined(CONFIG_GPCS_PHY2_ADDR)
case 2:
reg = CONFIG_GPCS_PHY2_ADDR;
break;
#endif
#if defined(CONFIG_GPCS_PHY3_ADDR)
case 3:
reg = CONFIG_GPCS_PHY3_ADDR;
break;
#endif
}
mode_reg = in_be32((void *)EMAC0_MR1 + hw_p->hw_addr);
mode_reg |= EMAC_MR1_MF_1000GPCS | EMAC_MR1_IPPA_SET(reg);
out_be32((void *)EMAC0_MR1 + hw_p->hw_addr, mode_reg);
/* Configure GPCS interface to recommended setting for SGMII */
miiphy_reset(dev->name, reg);
miiphy_write(dev->name, reg, 0x04, 0x8120); /* AsymPause, FDX */
miiphy_write(dev->name, reg, 0x07, 0x2801); /* msg_pg, toggle */
miiphy_write(dev->name, reg, 0x00, 0x0140); /* 1Gbps, FDX */
}
#endif /* defined(CONFIG_GPCS_PHY_ADDR) */
/* wait for PHY to complete auto negotiation */
reg_short = 0;
switch (devnum) {
case 0:
reg = CONFIG_PHY_ADDR;
break;
#if defined (CONFIG_PHY1_ADDR)
case 1:
reg = CONFIG_PHY1_ADDR;
break;
#endif
#if defined (CONFIG_PHY2_ADDR)
case 2:
reg = CONFIG_PHY2_ADDR;
break;
#endif
#if defined (CONFIG_PHY3_ADDR)
case 3:
reg = CONFIG_PHY3_ADDR;
break;
#endif
default:
reg = CONFIG_PHY_ADDR;
break;
}
bis->bi_phynum[devnum] = reg;
if (reg == CONFIG_FIXED_PHY)
goto get_speed;
#if defined(CONFIG_PHY_RESET)
/*
* Reset the phy, only if its the first time through
* otherwise, just check the speeds & feeds
*/
if (hw_p->first_init == 0) {
#if defined(CONFIG_M88E1111_PHY)
miiphy_write (dev->name, reg, 0x14, 0x0ce3);
miiphy_write (dev->name, reg, 0x18, 0x4101);
miiphy_write (dev->name, reg, 0x09, 0x0e00);
miiphy_write (dev->name, reg, 0x04, 0x01e1);
#if defined(CONFIG_M88E1111_DISABLE_FIBER)
miiphy_read(dev->name, reg, 0x1b, &reg_short);
reg_short |= 0x8000;
miiphy_write(dev->name, reg, 0x1b, reg_short);
#endif
#endif
#if defined(CONFIG_M88E1112_PHY)
if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
/*
* Marvell 88E1112 PHY needs to have the SGMII MAC
* interace (page 2) properly configured to
* communicate with the 460EX/GT GPCS interface.
*/
/* Set access to Page 2 */
miiphy_write(dev->name, reg, 0x16, 0x0002);
miiphy_write(dev->name, reg, 0x00, 0x0040); /* 1Gbps */
miiphy_read(dev->name, reg, 0x1a, &reg_short);
reg_short |= 0x8000; /* bypass Auto-Negotiation */
miiphy_write(dev->name, reg, 0x1a, reg_short);
miiphy_reset(dev->name, reg); /* reset MAC interface */
/* Reset access to Page 0 */
miiphy_write(dev->name, reg, 0x16, 0x0000);
}
#endif /* defined(CONFIG_M88E1112_PHY) */
miiphy_reset (dev->name, reg);
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
#if defined(CONFIG_CIS8201_PHY)
/*
* Cicada 8201 PHY needs to have an extended register whacked
* for RGMII mode.
*/
if (((devnum == 2) || (devnum == 3)) && (4 == ethgroup)) {
#if defined(CONFIG_CIS8201_SHORT_ETCH)
miiphy_write (dev->name, reg, 23, 0x1300);
#else
miiphy_write (dev->name, reg, 23, 0x1000);
#endif
/*
* Vitesse VSC8201/Cicada CIS8201 errata:
* Interoperability problem with Intel 82547EI phys
* This work around (provided by Vitesse) changes
* the default timer convergence from 8ms to 12ms
*/
miiphy_write (dev->name, reg, 0x1f, 0x2a30);
miiphy_write (dev->name, reg, 0x08, 0x0200);
miiphy_write (dev->name, reg, 0x1f, 0x52b5);
miiphy_write (dev->name, reg, 0x02, 0x0004);
miiphy_write (dev->name, reg, 0x01, 0x0671);
miiphy_write (dev->name, reg, 0x00, 0x8fae);
miiphy_write (dev->name, reg, 0x1f, 0x2a30);
miiphy_write (dev->name, reg, 0x08, 0x0000);
miiphy_write (dev->name, reg, 0x1f, 0x0000);
/* end Vitesse/Cicada errata */
}
#endif /* defined(CONFIG_CIS8201_PHY) */
#if defined(CONFIG_ET1011C_PHY)
/*
* Agere ET1011c PHY needs to have an extended register whacked
* for RGMII mode.
*/
if (((devnum == 2) || (devnum ==3)) && (4 == ethgroup)) {
miiphy_read (dev->name, reg, 0x16, &reg_short);
reg_short &= ~(0x7);
reg_short |= 0x6; /* RGMII DLL Delay*/
miiphy_write (dev->name, reg, 0x16, reg_short);
miiphy_read (dev->name, reg, 0x17, &reg_short);
reg_short &= ~(0x40);
miiphy_write (dev->name, reg, 0x17, reg_short);
miiphy_write(dev->name, reg, 0x1c, 0x74f0);
}
#endif /* defined(CONFIG_ET1011C_PHY) */
#endif /* defined(CONFIG_440GX) ... */
/* Start/Restart autonegotiation */
phy_setup_aneg (dev->name, reg);
udelay (1000);
}
#endif /* defined(CONFIG_PHY_RESET) */
miiphy_read (dev->name, reg, MII_BMSR, &reg_short);
/*
* Wait if PHY is capable of autonegotiation and autonegotiation is not complete
*/
if ((reg_short & BMSR_ANEGCAPABLE)
&& !(reg_short & BMSR_ANEGCOMPLETE)) {
puts ("Waiting for PHY auto negotiation to complete");
i = 0;
while (!(reg_short & BMSR_ANEGCOMPLETE)) {
/*
* Timeout reached ?
*/
if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
puts (" TIMEOUT !\n");
break;
}
if ((i++ % 1000) == 0) {
putc ('.');
}
udelay (1000); /* 1 ms */
miiphy_read (dev->name, reg, MII_BMSR, &reg_short);
}
puts (" done\n");
udelay (500000); /* another 500 ms (results in faster booting) */
}
get_speed:
if (reg == CONFIG_FIXED_PHY) {
for (i = 0; i < ARRAY_SIZE(fixed_phy_port); i++) {
if (devnum == fixed_phy_port[i].devnum) {
speed = fixed_phy_port[i].speed;
duplex = fixed_phy_port[i].duplex;
break;
}
}
if (i == ARRAY_SIZE(fixed_phy_port)) {
printf("ERROR: PHY (%s) not configured correctly!\n",
dev->name);
return -1;
}
} else {
speed = miiphy_speed(dev->name, reg);
duplex = miiphy_duplex(dev->name, reg);
}
if (hw_p->print_speed) {
hw_p->print_speed = 0;
printf ("ENET Speed is %d Mbps - %s duplex connection (EMAC%d)\n",
(int) speed, (duplex == HALF) ? "HALF" : "FULL",
hw_p->devnum);
}
#if defined(CONFIG_440) && \
!defined(CONFIG_440SP) && !defined(CONFIG_440SPE) && \
!defined(CONFIG_440EPX) && !defined(CONFIG_440GRX) && \
!defined(CONFIG_460EX) && !defined(CONFIG_460GT)
#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
mfsdr(SDR0_MFR, reg);
if (speed == 100) {
reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_100M;
} else {
reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_10M;
}
mtsdr(SDR0_MFR, reg);
#endif
/* Set ZMII/RGMII speed according to the phy link speed */
reg = in_be32((void *)ZMII0_SSR);
if ( (speed == 100) || (speed == 1000) )
out_be32((void *)ZMII0_SSR, reg | (ZMII0_SSR_SP << ZMII0_SSR_V (devnum)));
else
out_be32((void *)ZMII0_SSR, reg & (~(ZMII0_SSR_SP << ZMII0_SSR_V (devnum))));
if ((devnum == 2) || (devnum == 3)) {
if (speed == 1000)
reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V (devnum));
else if (speed == 100)
reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V (devnum));
else if (speed == 10)
reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V (devnum));
else {
printf("Error in RGMII Speed\n");
return -1;
}
out_be32((void *)RGMII_SSR, reg);
}
#endif /* defined(CONFIG_440) && !defined(CONFIG_440SP) */
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
if (devnum >= 2)
rgmii_channel = devnum - 2;
else
rgmii_channel = devnum;
if (speed == 1000)
reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V(rgmii_channel));
else if (speed == 100)
reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V(rgmii_channel));
else if (speed == 10)
reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V(rgmii_channel));
else {
printf("Error in RGMII Speed\n");
return -1;
}
out_be32((void *)RGMII_SSR, reg);
#if defined(CONFIG_460GT)
if ((devnum == 2) || (devnum == 3))
out_be32((void *)RGMII_SSR + RGMII1_BASE_OFFSET, reg);
#endif
#endif
/* set the Mal configuration reg */
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
mtdcr (MAL0_CFG, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
#else
mtdcr (MAL0_CFG, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
/* Errata 1.12: MAL_1 -- Disable MAL bursting */
if (get_pvr() == PVR_440GP_RB) {
mtdcr (MAL0_CFG, mfdcr(MAL0_CFG) & ~MAL_CR_PLBB);
}
#endif
/*
* Malloc MAL buffer desciptors, make sure they are
* aligned on cache line boundary size
* (401/403/IOP480 = 16, 405 = 32)
* and doesn't cross cache block boundaries.
*/
if (hw_p->first_init == 0) {
debug("*** Allocating descriptor memory ***\n");
bd_cached = (u32)malloc_aligned(MAL_ALLOC_SIZE, 4096);
if (!bd_cached) {
printf("%s: Error allocating MAL descriptor buffers!\n", __func__);
return -1;
}
#ifdef CONFIG_4xx_DCACHE
flush_dcache_range(bd_cached, bd_cached + MAL_ALLOC_SIZE);
if (!last_used_ea)
#if defined(CONFIG_SYS_MEM_TOP_HIDE)
bd_uncached = bis->bi_memsize + CONFIG_SYS_MEM_TOP_HIDE;
#else
bd_uncached = bis->bi_memsize;
#endif
else
bd_uncached = last_used_ea + MAL_ALLOC_SIZE;
last_used_ea = bd_uncached;
program_tlb(bd_cached, bd_uncached, MAL_ALLOC_SIZE,
TLB_WORD2_I_ENABLE);
#else
bd_uncached = bd_cached;
#endif
hw_p->tx_phys = bd_cached;
hw_p->rx_phys = bd_cached + MAL_TX_DESC_SIZE;
hw_p->tx = (mal_desc_t *)(bd_uncached);
hw_p->rx = (mal_desc_t *)(bd_uncached + MAL_TX_DESC_SIZE);
debug("hw_p->tx=%p, hw_p->rx=%p\n", hw_p->tx, hw_p->rx);
}
for (i = 0; i < NUM_TX_BUFF; i++) {
hw_p->tx[i].ctrl = 0;
hw_p->tx[i].data_len = 0;
if (hw_p->first_init == 0)
hw_p->txbuf_ptr = malloc_aligned(MAL_ALLOC_SIZE,
L1_CACHE_BYTES);
hw_p->tx[i].data_ptr = hw_p->txbuf_ptr;
if ((NUM_TX_BUFF - 1) == i)
hw_p->tx[i].ctrl |= MAL_TX_CTRL_WRAP;
hw_p->tx_run[i] = -1;
debug("TX_BUFF %d @ 0x%08x\n", i, (u32)hw_p->tx[i].data_ptr);
}
for (i = 0; i < NUM_RX_BUFF; i++) {
hw_p->rx[i].ctrl = 0;
hw_p->rx[i].data_len = 0;
hw_p->rx[i].data_ptr = (char *)net_rx_packets[i];
if ((NUM_RX_BUFF - 1) == i)
hw_p->rx[i].ctrl |= MAL_RX_CTRL_WRAP;
hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR;
hw_p->rx_ready[i] = -1;
debug("RX_BUFF %d @ 0x%08x\n", i, (u32)hw_p->rx[i].data_ptr);
}
reg = 0x00000000;
reg |= dev->enetaddr[0]; /* set high address */
reg = reg << 8;
reg |= dev->enetaddr[1];
out_be32((void *)EMAC0_IAH + hw_p->hw_addr, reg);
reg = 0x00000000;
reg |= dev->enetaddr[2]; /* set low address */
reg = reg << 8;
reg |= dev->enetaddr[3];
reg = reg << 8;
reg |= dev->enetaddr[4];
reg = reg << 8;
reg |= dev->enetaddr[5];
out_be32((void *)EMAC0_IAL + hw_p->hw_addr, reg);
switch (devnum) {
case 1:
/* setup MAL tx & rx channel pointers */
#if defined (CONFIG_405EP) || defined (CONFIG_440EP) || defined (CONFIG_440GR)
mtdcr (MAL0_TXCTP2R, hw_p->tx_phys);
#else
mtdcr (MAL0_TXCTP1R, hw_p->tx_phys);
#endif
#if defined(CONFIG_440)
mtdcr (MAL0_TXBADDR, 0x0);
mtdcr (MAL0_RXBADDR, 0x0);
#endif
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
mtdcr (MAL0_RXCTP8R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS8, ENET_MAX_MTU_ALIGNED / 16);
#else
mtdcr (MAL0_RXCTP1R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS1, ENET_MAX_MTU_ALIGNED / 16);
#endif
break;
#if defined (CONFIG_440GX)
case 2:
/* setup MAL tx & rx channel pointers */
mtdcr (MAL0_TXBADDR, 0x0);
mtdcr (MAL0_RXBADDR, 0x0);
mtdcr (MAL0_TXCTP2R, hw_p->tx_phys);
mtdcr (MAL0_RXCTP2R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS2, ENET_MAX_MTU_ALIGNED / 16);
break;
case 3:
/* setup MAL tx & rx channel pointers */
mtdcr (MAL0_TXBADDR, 0x0);
mtdcr (MAL0_TXCTP3R, hw_p->tx_phys);
mtdcr (MAL0_RXBADDR, 0x0);
mtdcr (MAL0_RXCTP3R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS3, ENET_MAX_MTU_ALIGNED / 16);
break;
#endif /* CONFIG_440GX */
#if defined (CONFIG_460GT)
case 2:
/* setup MAL tx & rx channel pointers */
mtdcr (MAL0_TXBADDR, 0x0);
mtdcr (MAL0_RXBADDR, 0x0);
mtdcr (MAL0_TXCTP2R, hw_p->tx_phys);
mtdcr (MAL0_RXCTP16R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS16, ENET_MAX_MTU_ALIGNED / 16);
break;
case 3:
/* setup MAL tx & rx channel pointers */
mtdcr (MAL0_TXBADDR, 0x0);
mtdcr (MAL0_RXBADDR, 0x0);
mtdcr (MAL0_TXCTP3R, hw_p->tx_phys);
mtdcr (MAL0_RXCTP24R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS24, ENET_MAX_MTU_ALIGNED / 16);
break;
#endif /* CONFIG_460GT */
case 0:
default:
/* setup MAL tx & rx channel pointers */
#if defined(CONFIG_440)
mtdcr (MAL0_TXBADDR, 0x0);
mtdcr (MAL0_RXBADDR, 0x0);
#endif
mtdcr (MAL0_TXCTP0R, hw_p->tx_phys);
mtdcr (MAL0_RXCTP0R, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (MAL0_RCBS0, ENET_MAX_MTU_ALIGNED / 16);
break;
}
/* Enable MAL transmit and receive channels */
#if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
mtdcr (MAL0_TXCASR, (MAL_TXRX_CASR >> (hw_p->devnum*2)));
#else
mtdcr (MAL0_TXCASR, (MAL_TXRX_CASR >> hw_p->devnum));
#endif
mtdcr (MAL0_RXCASR, (MAL_TXRX_CASR >> hw_p->devnum));
/* set transmit enable & receive enable */
out_be32((void *)EMAC0_MR0 + hw_p->hw_addr, EMAC_MR0_TXE | EMAC_MR0_RXE);
mode_reg = in_be32((void *)EMAC0_MR1 + hw_p->hw_addr);
/* set rx-/tx-fifo size */
mode_reg = (mode_reg & ~EMAC_MR1_FIFO_MASK) | EMAC_MR1_FIFO_SIZE;
/* set speed */
if (speed == _1000BASET) {
#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
unsigned long pfc1;
mfsdr (SDR0_PFC1, pfc1);
pfc1 |= SDR0_PFC1_EM_1000;
mtsdr (SDR0_PFC1, pfc1);
#endif
mode_reg = mode_reg | EMAC_MR1_MF_1000MBPS | EMAC_MR1_IST;
} else if (speed == _100BASET)
mode_reg = mode_reg | EMAC_MR1_MF_100MBPS | EMAC_MR1_IST;
else
mode_reg = mode_reg & ~0x00C00000; /* 10 MBPS */
if (duplex == FULL)
mode_reg = mode_reg | 0x80000000 | EMAC_MR1_IST;
out_be32((void *)EMAC0_MR1 + hw_p->hw_addr, mode_reg);
/* Enable broadcast and indvidual address */
/* TBS: enabling runts as some misbehaved nics will send runts */
out_be32((void *)EMAC0_RXM + hw_p->hw_addr, EMAC_RMR_BAE | EMAC_RMR_IAE);
/* we probably need to set the tx mode1 reg? maybe at tx time */
/* set transmit request threshold register */
out_be32((void *)EMAC0_TRTR + hw_p->hw_addr, 0x18000000); /* 256 byte threshold */
/* set receive low/high water mark register */
#if defined(CONFIG_440)
/* 440s has a 64 byte burst length */
out_be32((void *)EMAC0_RX_HI_LO_WMARK + hw_p->hw_addr, 0x80009000);
#else
/* 405s have a 16 byte burst length */
out_be32((void *)EMAC0_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
#endif /* defined(CONFIG_440) */
out_be32((void *)EMAC0_TMR1 + hw_p->hw_addr, 0xf8640000);
/* Set fifo limit entry in tx mode 0 */
out_be32((void *)EMAC0_TMR0 + hw_p->hw_addr, 0x00000003);
/* Frame gap set */
out_be32((void *)EMAC0_I_FRAME_GAP_REG + hw_p->hw_addr, 0x00000008);
/* Set EMAC IER */
hw_p->emac_ier = EMAC_ISR_PTLE | EMAC_ISR_BFCS | EMAC_ISR_ORE | EMAC_ISR_IRE;
if (speed == _100BASET)
hw_p->emac_ier = hw_p->emac_ier | EMAC_ISR_SYE;
out_be32((void *)EMAC0_ISR + hw_p->hw_addr, 0xffffffff); /* clear pending interrupts */
out_be32((void *)EMAC0_IER + hw_p->hw_addr, hw_p->emac_ier);
if (hw_p->first_init == 0) {
/*
* Connect interrupt service routines
*/
irq_install_handler(ETH_IRQ_NUM(hw_p->devnum),
(interrupt_handler_t *) enetInt, dev);
}
mtmsr (msr); /* enable interrupts again */
hw_p->bis = bis;
hw_p->first_init = 1;
return 0;
}
static int ppc_4xx_eth_send(struct eth_device *dev, void *ptr, int len)
{
struct enet_frame *ef_ptr;
ulong time_start, time_now;
unsigned long temp_txm0;
EMAC_4XX_HW_PST hw_p = dev->priv;
ef_ptr = (struct enet_frame *) ptr;
/*-----------------------------------------------------------------------+
* Copy in our address into the frame.
*-----------------------------------------------------------------------*/
(void) memcpy (ef_ptr->source_addr, dev->enetaddr, ENET_ADDR_LENGTH);
/*-----------------------------------------------------------------------+
* If frame is too long or too short, modify length.
*-----------------------------------------------------------------------*/
/* TBS: where does the fragment go???? */
if (len > ENET_MAX_MTU)
len = ENET_MAX_MTU;
/* memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */
memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len);
flush_dcache_range((u32)hw_p->txbuf_ptr, (u32)hw_p->txbuf_ptr + len);
/*-----------------------------------------------------------------------+
* set TX Buffer busy, and send it
*-----------------------------------------------------------------------*/
hw_p->tx[hw_p->tx_slot].ctrl = (MAL_TX_CTRL_LAST |
EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP) &
~(EMAC_TX_CTRL_ISA | EMAC_TX_CTRL_RSA);
if ((NUM_TX_BUFF - 1) == hw_p->tx_slot)
hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_WRAP;
hw_p->tx[hw_p->tx_slot].data_len = (short) len;
hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_READY;
sync();
out_be32((void *)EMAC0_TMR0 + hw_p->hw_addr,
in_be32((void *)EMAC0_TMR0 + hw_p->hw_addr) | EMAC_TMR0_GNP0);
#ifdef INFO_4XX_ENET
hw_p->stats.pkts_tx++;
#endif
/*-----------------------------------------------------------------------+
* poll unitl the packet is sent and then make sure it is OK
*-----------------------------------------------------------------------*/
time_start = get_timer (0);
while (1) {
temp_txm0 = in_be32((void *)EMAC0_TMR0 + hw_p->hw_addr);
/* loop until either TINT turns on or 3 seconds elapse */
if ((temp_txm0 & EMAC_TMR0_GNP0) != 0) {
/* transmit is done, so now check for errors
* If there is an error, an interrupt should
* happen when we return
*/
time_now = get_timer (0);
if ((time_now - time_start) > 3000) {
return (-1);
}
} else {
return (len);
}
}
}
int enetInt (struct eth_device *dev)
{
int serviced;
int rc = -1; /* default to not us */
u32 mal_isr;
u32 emac_isr = 0;
u32 mal_eob;
u32 uic_mal;
u32 uic_mal_err;
u32 uic_emac;
u32 uic_emac_b;
EMAC_4XX_HW_PST hw_p;
/*
* Because the mal is generic, we need to get the current
* eth device
*/
dev = eth_get_dev();
hw_p = dev->priv;
/* enter loop that stays in interrupt code until nothing to service */
do {
serviced = 0;
uic_mal = mfdcr(UIC_BASE_MAL + UIC_MSR);
uic_mal_err = mfdcr(UIC_BASE_MAL_ERR + UIC_MSR);
uic_emac = mfdcr(UIC_BASE_EMAC + UIC_MSR);
uic_emac_b = mfdcr(UIC_BASE_EMAC_B + UIC_MSR);
if (!(uic_mal & (UIC_MAL_RXEOB | UIC_MAL_TXEOB))
&& !(uic_mal_err & (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE))
&& !(uic_emac & UIC_ETHx) && !(uic_emac_b & UIC_ETHxB)) {
/* not for us */
return (rc);
}
/* get and clear controller status interrupts */
/* look at MAL and EMAC error interrupts */
if (uic_mal_err & (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)) {
/* we have a MAL error interrupt */
mal_isr = mfdcr(MAL0_ESR);
mal_err(dev, mal_isr, uic_mal_err,
MAL_UIC_DEF, MAL_UIC_ERR);
/* clear MAL error interrupt status bits */
mtdcr(UIC_BASE_MAL_ERR + UIC_SR,
UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE);
return -1;
}
/* look for EMAC errors */
if ((uic_emac & UIC_ETHx) || (uic_emac_b & UIC_ETHxB)) {
emac_isr = in_be32((void *)EMAC0_ISR + hw_p->hw_addr);
emac_err(dev, emac_isr);
/* clear EMAC error interrupt status bits */
mtdcr(UIC_BASE_EMAC + UIC_SR, UIC_ETHx);
mtdcr(UIC_BASE_EMAC_B + UIC_SR, UIC_ETHxB);
return -1;
}
/* handle MAX TX EOB interrupt from a tx */
if (uic_mal & UIC_MAL_TXEOB) {
/* clear MAL interrupt status bits */
mal_eob = mfdcr(MAL0_TXEOBISR);
mtdcr(MAL0_TXEOBISR, mal_eob);
mtdcr(UIC_BASE_MAL + UIC_SR, UIC_MAL_TXEOB);
/* indicate that we serviced an interrupt */
serviced = 1;
rc = 0;
}
/* handle MAL RX EOB interrupt from a receive */
/* check for EOB on valid channels */
if (uic_mal & UIC_MAL_RXEOB) {
mal_eob = mfdcr(MAL0_RXEOBISR);
if (mal_eob &
(0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL))) {
/* push packet to upper layer */
enet_rcv(dev, emac_isr);
/* clear MAL interrupt status bits */
mtdcr(UIC_BASE_MAL + UIC_SR, UIC_MAL_RXEOB);
/* indicate that we serviced an interrupt */
serviced = 1;
rc = 0;
}
}
#if defined(CONFIG_405EZ)
/*
* On 405EZ the RX-/TX-interrupts are coalesced into
* one IRQ bit in the UIC. We need to acknowledge the
* RX-/TX-interrupts in the SDR0_ICINTSTAT reg as well.
*/
mtsdr(SDR0_ICINTSTAT,
SDR_ICRX_STAT | SDR_ICTX0_STAT | SDR_ICTX1_STAT);
#endif /* defined(CONFIG_405EZ) */
} while (serviced);
return (rc);
}
/*-----------------------------------------------------------------------------+
* MAL Error Routine
*-----------------------------------------------------------------------------*/
static void mal_err (struct eth_device *dev, unsigned long isr,
unsigned long uic, unsigned long maldef,
unsigned long mal_errr)
{
mtdcr (MAL0_ESR, isr); /* clear interrupt */
/* clear DE interrupt */
mtdcr (MAL0_TXDEIR, 0xC0000000);
mtdcr (MAL0_RXDEIR, 0x80000000);
#ifdef INFO_4XX_ENET
printf("\nMAL error occurred.... ISR = %lx UIC = = %lx MAL_DEF = %lx MAL_ERR= %lx\n",
isr, uic, maldef, mal_errr);
#endif
eth_init(); /* start again... */
}
/*-----------------------------------------------------------------------------+
* EMAC Error Routine
*-----------------------------------------------------------------------------*/
static void emac_err (struct eth_device *dev, unsigned long isr)
{
EMAC_4XX_HW_PST hw_p = dev->priv;
printf ("EMAC%d error occurred.... ISR = %lx\n", hw_p->devnum, isr);
out_be32((void *)EMAC0_ISR + hw_p->hw_addr, isr);
}
/*-----------------------------------------------------------------------------+
* enet_rcv() handles the ethernet receive data
*-----------------------------------------------------------------------------*/
static void enet_rcv (struct eth_device *dev, unsigned long malisr)
{
unsigned long data_len;
unsigned long rx_eob_isr;
EMAC_4XX_HW_PST hw_p = dev->priv;
int handled = 0;
int i;
int loop_count = 0;
rx_eob_isr = mfdcr (MAL0_RXEOBISR);
if ((0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL)) & rx_eob_isr) {
/* clear EOB */
mtdcr (MAL0_RXEOBISR, rx_eob_isr);
/* EMAC RX done */
while (1) { /* do all */
i = hw_p->rx_slot;
if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl)
|| (loop_count >= NUM_RX_BUFF))
break;
loop_count++;
handled++;
data_len = (unsigned long) hw_p->rx[i].data_len & 0x0fff; /* Get len */
if (data_len) {
if (data_len > ENET_MAX_MTU) /* Check len */
data_len = 0;
else {
if (EMAC_RX_ERRORS & hw_p->rx[i].ctrl) { /* Check Errors */
data_len = 0;
hw_p->stats.rx_err_log[hw_p->
rx_err_index]
= hw_p->rx[i].ctrl;
hw_p->rx_err_index++;
if (hw_p->rx_err_index ==
MAX_ERR_LOG)
hw_p->rx_err_index =
0;
} /* emac_erros */
} /* data_len < max mtu */
} /* if data_len */
if (!data_len) { /* no data */
hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY; /* Free Recv Buffer */
hw_p->stats.data_len_err++; /* Error at Rx */
}
/* !data_len */
/* AS.HARNOIS */
/* Check if user has already eaten buffer */
/* if not => ERROR */
else if (hw_p->rx_ready[hw_p->rx_i_index] != -1) {
if (hw_p->is_receiving)
printf ("ERROR : Receive buffers are full!\n");
break;
} else {
hw_p->stats.rx_frames++;
hw_p->stats.rx += data_len;
#ifdef INFO_4XX_ENET
hw_p->stats.pkts_rx++;
#endif
/* AS.HARNOIS
* use ring buffer
*/
hw_p->rx_ready[hw_p->rx_i_index] = i;
hw_p->rx_i_index++;
if (NUM_RX_BUFF == hw_p->rx_i_index)
hw_p->rx_i_index = 0;
hw_p->rx_slot++;
if (NUM_RX_BUFF == hw_p->rx_slot)
hw_p->rx_slot = 0;
/* AS.HARNOIS
* free receive buffer only when
* buffer has been handled (eth_rx)
rx[i].ctrl |= MAL_RX_CTRL_EMPTY;
*/
} /* if data_len */
} /* while */
} /* if EMACK_RXCHL */
}
static int ppc_4xx_eth_rx (struct eth_device *dev)
{
int length;
int user_index;
unsigned long msr;
EMAC_4XX_HW_PST hw_p = dev->priv;
hw_p->is_receiving = 1; /* tell driver */
for (;;) {
/* AS.HARNOIS
* use ring buffer and
* get index from rx buffer desciptor queue
*/
user_index = hw_p->rx_ready[hw_p->rx_u_index];
if (user_index == -1) {
length = -1;
break; /* nothing received - leave for() loop */
}
msr = mfmsr ();
mtmsr (msr & ~(MSR_EE));
length = hw_p->rx[user_index].data_len & 0x0fff;
/*
* Pass the packet up to the protocol layers.
* net_process_received_packet(net_rx_packets[rxIdx],
* length - 4);
* net_process_received_packet(net_rx_packets[i], length);
*/
invalidate_dcache_range((u32)hw_p->rx[user_index].data_ptr,
(u32)hw_p->rx[user_index].data_ptr +
length - 4);
net_process_received_packet(net_rx_packets[user_index],
length - 4);
/* Free Recv Buffer */
hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;
/* Free rx buffer descriptor queue */
hw_p->rx_ready[hw_p->rx_u_index] = -1;
hw_p->rx_u_index++;
if (NUM_RX_BUFF == hw_p->rx_u_index)
hw_p->rx_u_index = 0;
#ifdef INFO_4XX_ENET
hw_p->stats.pkts_handled++;
#endif
mtmsr (msr); /* Enable IRQ's */
}
hw_p->is_receiving = 0; /* tell driver */
return length;
}
int ppc_4xx_eth_initialize (bd_t * bis)
{
static int virgin = 0;
struct eth_device *dev;
int eth_num = 0;
EMAC_4XX_HW_PST hw = NULL;
u8 ethaddr[4 + CONFIG_EMAC_NR_START][6];
u32 hw_addr[4];
u32 mal_ier;
#if defined(CONFIG_440GX)
unsigned long pfc1;
mfsdr (SDR0_PFC1, pfc1);
pfc1 &= ~(0x01e00000);
pfc1 |= 0x01200000;
mtsdr (SDR0_PFC1, pfc1);
#endif
/* first clear all mac-addresses */
for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++)
memcpy(ethaddr[eth_num], "\0\0\0\0\0\0", 6);
for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
int ethaddr_idx = eth_num + CONFIG_EMAC_NR_START;
switch (eth_num) {
default: /* fall through */
case 0:
eth_getenv_enetaddr("ethaddr", ethaddr[ethaddr_idx]);
hw_addr[eth_num] = 0x0;
break;
#ifdef CONFIG_HAS_ETH1
case 1:
eth_getenv_enetaddr("eth1addr", ethaddr[ethaddr_idx]);
hw_addr[eth_num] = 0x100;
break;
#endif
#ifdef CONFIG_HAS_ETH2
case 2:
eth_getenv_enetaddr("eth2addr", ethaddr[ethaddr_idx]);
#if defined(CONFIG_460GT)
hw_addr[eth_num] = 0x300;
#else
hw_addr[eth_num] = 0x400;
#endif
break;
#endif
#ifdef CONFIG_HAS_ETH3
case 3:
eth_getenv_enetaddr("eth3addr", ethaddr[ethaddr_idx]);
#if defined(CONFIG_460GT)
hw_addr[eth_num] = 0x400;
#else
hw_addr[eth_num] = 0x600;
#endif
break;
#endif
}
}
/* set phy num and mode */
bis->bi_phynum[0] = CONFIG_PHY_ADDR;
bis->bi_phymode[0] = 0;
#if defined(CONFIG_PHY1_ADDR)
bis->bi_phynum[1] = CONFIG_PHY1_ADDR;
bis->bi_phymode[1] = 0;
#endif
#if defined(CONFIG_440GX)
bis->bi_phynum[2] = CONFIG_PHY2_ADDR;
bis->bi_phynum[3] = CONFIG_PHY3_ADDR;
bis->bi_phymode[2] = 2;
bis->bi_phymode[3] = 2;
#endif
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_405EX)
ppc_4xx_eth_setup_bridge(0, bis);
#endif
for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
/*
* See if we can actually bring up the interface,
* otherwise, skip it
*/
if (memcmp (ethaddr[eth_num], "\0\0\0\0\0\0", 6) == 0) {
bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
continue;
}
/* Allocate device structure */
dev = (struct eth_device *) malloc (sizeof (*dev));
if (dev == NULL) {
printf ("ppc_4xx_eth_initialize: "
"Cannot allocate eth_device %d\n", eth_num);
return (-1);
}
memset(dev, 0, sizeof(*dev));
/* Allocate our private use data */
hw = (EMAC_4XX_HW_PST) malloc (sizeof (*hw));
if (hw == NULL) {
printf ("ppc_4xx_eth_initialize: "
"Cannot allocate private hw data for eth_device %d",
eth_num);
free (dev);
return (-1);
}
memset(hw, 0, sizeof(*hw));
hw->hw_addr = hw_addr[eth_num];
memcpy (dev->enetaddr, ethaddr[eth_num], 6);
hw->devnum = eth_num;
hw->print_speed = 1;
sprintf (dev->name, "ppc_4xx_eth%d", eth_num - CONFIG_EMAC_NR_START);
dev->priv = (void *) hw;
dev->init = ppc_4xx_eth_init;
dev->halt = ppc_4xx_eth_halt;
dev->send = ppc_4xx_eth_send;
dev->recv = ppc_4xx_eth_rx;
eth_register(dev);
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
int retval;
struct mii_dev *mdiodev = mdio_alloc();
if (!mdiodev)
return -ENOMEM;
strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
mdiodev->read = emac4xx_miiphy_read;
mdiodev->write = emac4xx_miiphy_write;
retval = mdio_register(mdiodev);
if (retval < 0)
return retval;
#endif
if (0 == virgin) {
/* set the MAL IER ??? names may change with new spec ??? */
#if defined(CONFIG_440SPE) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
mal_ier =
MAL_IER_PT | MAL_IER_PRE | MAL_IER_PWE |
MAL_IER_DE | MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE ;
#else
mal_ier =
MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
MAL_IER_OPBE | MAL_IER_PLBE;
#endif
mtdcr (MAL0_ESR, 0xffffffff); /* clear pending interrupts */
mtdcr (MAL0_TXDEIR, 0xffffffff); /* clear pending interrupts */
mtdcr (MAL0_RXDEIR, 0xffffffff); /* clear pending interrupts */
mtdcr (MAL0_IER, mal_ier);
/* install MAL interrupt handler */
irq_install_handler (VECNUM_MAL_SERR,
(interrupt_handler_t *) enetInt,
dev);
irq_install_handler (VECNUM_MAL_TXEOB,
(interrupt_handler_t *) enetInt,
dev);
irq_install_handler (VECNUM_MAL_RXEOB,
(interrupt_handler_t *) enetInt,
dev);
irq_install_handler (VECNUM_MAL_TXDE,
(interrupt_handler_t *) enetInt,
dev);
irq_install_handler (VECNUM_MAL_RXDE,
(interrupt_handler_t *) enetInt,
dev);
virgin = 1;
}
} /* end for each supported device */
return 0;
}
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