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u-boot/drivers/net/4xx_enet.c
Felix Radensky 0c24dec550 ppc4xx/net: Fix MDIO clock setup 
This patch fixes MDIO clock setup in case when OPB frequency is 100MHz.
Current code assumes that the value of sysinfo.freqOPB is 100000000
when OPB frequency is 100MHz. In reality it is 100000001. As a result
MDIO clock is set to incorrect value, larger than 2.5MHz, thus violating
the standard. This in not a problem on boards equipped with Marvell PHYs
(e.g. Canyonlands), since those PHYs support MDIO clocks up to 8.3MHz,
but can be a problem for other PHYs (e.g. Realtek ones).

Signed-off-by: Felix Radensky <felix@embedded-sol.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2009-06-08 22:57:21 -07:00

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/*-----------------------------------------------------------------------------+
*
* This source code has been made available to you by IBM on an AS-IS
* basis. Anyone receiving this source is licensed under IBM
* copyrights to use it in any way he or she deems fit, including
* copying it, modifying it, compiling it, and redistributing it either
* with or without modifications. No license under IBM patents or
* patent applications is to be implied by the copyright license.
*
* Any user of this software should understand that IBM cannot provide
* technical support for this software and will not be responsible for
* any consequences resulting from the use of this software.
*
* Any person who transfers this source code or any derivative work
* must include the IBM copyright notice, this paragraph, and the
* preceding two paragraphs in the transferred software.
*
* COPYRIGHT I B M CORPORATION 1995
* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
*-----------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------+
*
* 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
* EMAC_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 EMAC_M1 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 <ppc4xx.h>
#include <ppc4xx_enet.h>
#include <405_mal.h>
#include <miiphy.h>
#include <malloc.h>
#if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
#error "CONFIG_MII has to be defined!"
#endif
#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_NET_MULTI)
#error "CONFIG_NET_MULTI has to be defined for NetConsole"
#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.
*-----------------------------------------------------------------------------*/
#if !defined(CONFIG_NET_MULTI)
struct eth_device *emac0_dev = NULL;
#endif
/*
* 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);
extern int emac4xx_miiphy_read (char *devname, unsigned char addr,
unsigned char reg, unsigned short *value);
extern int emac4xx_miiphy_write (char *devname, unsigned char addr,
unsigned char reg, unsigned short 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(sdr_mfr, val);
val |= SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
mtsdr(sdr_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(sdr_mfr, val);
val &= ~SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
mtsdr(sdr_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 *)EMAC_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 (maltxcarr, (MAL_CR_MMSR >> (hw_p->devnum * 2)));
#else
mtdcr (maltxcarr, (MAL_CR_MMSR >> hw_p->devnum));
#endif
mtdcr (malrxcarr, (MAL_CR_MMSR >> hw_p->devnum));
/* wait for reset */
while (mfdcr (malrxcasr) & (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 *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_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(sdr_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 *)ZMII_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(sdr_pfc1, pfc1);
pfc1 &= SDR0_PFC1_SELECT_MASK;
switch (pfc1) {
case SDR0_PFC1_SELECT_CONFIG_2:
/* 1 x GMII port */
out_be32((void *)ZMII_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 *)ZMII_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 *)ZMII_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 *)ZMII_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 *)ZMII_FER);
zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
out_be32((void *)ZMII_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_440SPE) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
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 preceeding 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 *)ZMII_FER, 0);
udelay (100);
#if defined(CONFIG_440GP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
out_be32((void *)ZMII_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 *)ZMII_SSR, ZMII_SSR_SP << ZMII_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 *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
/* remove clocks for EMAC internal loopback */
emac_loopback_disable(hw_p);
failsafe = 1000;
while ((in_be32((void *)EMAC_M0 + hw_p->hw_addr) & (EMAC_M0_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_M1_OBCI_66;
else if (opbfreq <= 83)
mode_reg |= EMAC_M1_OBCI_83;
else if (opbfreq <= 100)
mode_reg |= EMAC_M1_OBCI_100;
else
mode_reg |= EMAC_M1_OBCI_GT100;
out_be32((void *)EMAC_M1 + 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 *)EMAC_M1 + hw_p->hw_addr);
mode_reg |= EMAC_M1_MF_1000GPCS | EMAC_M1_IPPA_SET(reg);
out_be32((void *)EMAC_M1 + 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);
#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_440SP) || defined(CONFIG_440SPE) || \
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, PHY_BMSR, &reg_short);
/*
* Wait if PHY is capable of autonegotiation and autonegotiation is not complete
*/
if ((reg_short & PHY_BMSR_AUTN_ABLE)
&& !(reg_short & PHY_BMSR_AUTN_COMP)) {
puts ("Waiting for PHY auto negotiation to complete");
i = 0;
while (!(reg_short & PHY_BMSR_AUTN_COMP)) {
/*
* 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, PHY_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(sdr_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(sdr_mfr, reg);
#endif
/* Set ZMII/RGMII speed according to the phy link speed */
reg = in_be32((void *)ZMII_SSR);
if ( (speed == 100) || (speed == 1000) )
out_be32((void *)ZMII_SSR, reg | (ZMII_SSR_SP << ZMII_SSR_V (devnum)));
else
out_be32((void *)ZMII_SSR, reg & (~(ZMII_SSR_SP << ZMII_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 (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
#else
mtdcr (malmcr, 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 (malmcr, mfdcr(malmcr) & ~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=%08x, hw_p->rx=%08x\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%08lx\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 *)NetRxPackets[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%08lx\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 *)EMAC_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 *)EMAC_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 (maltxctp2r, hw_p->tx_phys);
#else
mtdcr (maltxctp1r, hw_p->tx_phys);
#endif
#if defined(CONFIG_440)
mtdcr (maltxbattr, 0x0);
mtdcr (malrxbattr, 0x0);
#endif
#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
mtdcr (malrxctp8r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs8, ENET_MAX_MTU_ALIGNED / 16);
#else
mtdcr (malrxctp1r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
#endif
break;
#if defined (CONFIG_440GX)
case 2:
/* setup MAL tx & rx channel pointers */
mtdcr (maltxbattr, 0x0);
mtdcr (malrxbattr, 0x0);
mtdcr (maltxctp2r, hw_p->tx_phys);
mtdcr (malrxctp2r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs2, ENET_MAX_MTU_ALIGNED / 16);
break;
case 3:
/* setup MAL tx & rx channel pointers */
mtdcr (maltxbattr, 0x0);
mtdcr (maltxctp3r, hw_p->tx_phys);
mtdcr (malrxbattr, 0x0);
mtdcr (malrxctp3r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs3, ENET_MAX_MTU_ALIGNED / 16);
break;
#endif /* CONFIG_440GX */
#if defined (CONFIG_460GT)
case 2:
/* setup MAL tx & rx channel pointers */
mtdcr (maltxbattr, 0x0);
mtdcr (malrxbattr, 0x0);
mtdcr (maltxctp2r, hw_p->tx_phys);
mtdcr (malrxctp16r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs16, ENET_MAX_MTU_ALIGNED / 16);
break;
case 3:
/* setup MAL tx & rx channel pointers */
mtdcr (maltxbattr, 0x0);
mtdcr (malrxbattr, 0x0);
mtdcr (maltxctp3r, hw_p->tx_phys);
mtdcr (malrxctp24r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs24, ENET_MAX_MTU_ALIGNED / 16);
break;
#endif /* CONFIG_460GT */
case 0:
default:
/* setup MAL tx & rx channel pointers */
#if defined(CONFIG_440)
mtdcr (maltxbattr, 0x0);
mtdcr (malrxbattr, 0x0);
#endif
mtdcr (maltxctp0r, hw_p->tx_phys);
mtdcr (malrxctp0r, hw_p->rx_phys);
/* set RX buffer size */
mtdcr (malrcbs0, ENET_MAX_MTU_ALIGNED / 16);
break;
}
/* Enable MAL transmit and receive channels */
#if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
mtdcr (maltxcasr, (MAL_TXRX_CASR >> (hw_p->devnum*2)));
#else
mtdcr (maltxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
#endif
mtdcr (malrxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
/* set transmit enable & receive enable */
out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
mode_reg = in_be32((void *)EMAC_M1 + 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_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE)
unsigned long pfc1;
mfsdr (sdr_pfc1, pfc1);
pfc1 |= SDR0_PFC1_EM_1000;
mtsdr (sdr_pfc1, pfc1);
#endif
mode_reg = mode_reg | EMAC_M1_MF_1000MBPS | EMAC_M1_IST;
} else if (speed == _100BASET)
mode_reg = mode_reg | EMAC_M1_MF_100MBPS | EMAC_M1_IST;
else
mode_reg = mode_reg & ~0x00C00000; /* 10 MBPS */
if (duplex == FULL)
mode_reg = mode_reg | 0x80000000 | EMAC_M1_IST;
out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
/* Enable broadcast and indvidual address */
/* TBS: enabling runts as some misbehaved nics will send runts */
out_be32((void *)EMAC_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 *)EMAC_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 *)EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x80009000);
#else
/* 405s have a 16 byte burst length */
out_be32((void *)EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
#endif /* defined(CONFIG_440) */
out_be32((void *)EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
/* Set fifo limit entry in tx mode 0 */
out_be32((void *)EMAC_TXM0 + hw_p->hw_addr, 0x00000003);
/* Frame gap set */
out_be32((void *)EMAC_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 *)EMAC_ISR + hw_p->hw_addr, 0xffffffff); /* clear pending interrupts */
out_be32((void *)EMAC_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, volatile 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 *)EMAC_TXM0 + hw_p->hw_addr,
in_be32((void *)EMAC_TXM0 + hw_p->hw_addr) | EMAC_TXM0_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 *)EMAC_TXM0 + hw_p->hw_addr);
/* loop until either TINT turns on or 3 seconds elapse */
if ((temp_txm0 & EMAC_TXM0_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
*/
#if defined(CONFIG_NET_MULTI)
dev = eth_get_dev();
#else
dev = emac0_dev;
#endif
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(malesr);
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 *)EMAC_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(maltxeobisr);
mtdcr(maltxeobisr, 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 interupt from a receive */
/* check for EOB on valid channels */
if (uic_mal & UIC_MAL_RXEOB) {
mal_eob = mfdcr(malrxeobisr);
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;
}
}
} 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)
{
EMAC_4XX_HW_PST hw_p = dev->priv;
mtdcr (malesr, isr); /* clear interrupt */
/* clear DE interrupt */
mtdcr (maltxdeir, 0xC0000000);
mtdcr (malrxdeir, 0x80000000);
#ifdef INFO_4XX_ENET
printf ("\nMAL error occured.... ISR = %lx UIC = = %lx MAL_DEF = %lx MAL_ERR= %lx \n", isr, uic, maldef, mal_errr);
#endif
eth_init (hw_p->bis); /* 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 occured.... ISR = %lx\n", hw_p->devnum, isr);
out_be32((void *)EMAC_ISR + hw_p->hw_addr, isr);
}
/*-----------------------------------------------------------------------------+
* enet_rcv() handles the ethernet receive data
*-----------------------------------------------------------------------------*/
static void enet_rcv (struct eth_device *dev, unsigned long malisr)
{
struct enet_frame *ef_ptr;
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 (malrxeobisr);
if ((0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL)) & rx_eob_isr) {
/* clear EOB */
mtdcr (malrxeobisr, 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;
ef_ptr = (struct enet_frame *) hw_p->rx[i].
data_ptr;
#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. */
/* NetReceive(NetRxPackets[rxIdx], length - 4); */
/* NetReceive(NetRxPackets[i], length); */
invalidate_dcache_range((u32)hw_p->rx[user_index].data_ptr,
(u32)hw_p->rx[user_index].data_ptr +
length - 4);
NetReceive (NetRxPackets[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 (sdr_pfc1, pfc1);
pfc1 &= ~(0x01e00000);
pfc1 |= 0x01200000;
mtsdr (sdr_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;
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 (malesr, 0xffffffff); /* clear pending interrupts */
mtdcr (maltxdeir, 0xffffffff); /* clear pending interrupts */
mtdcr (malrxdeir, 0xffffffff); /* clear pending interrupts */
mtdcr (malier, 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;
}
#if defined(CONFIG_NET_MULTI)
eth_register (dev);
#else
emac0_dev = dev;
#endif
#if defined(CONFIG_NET_MULTI)
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
miiphy_register (dev->name,
emac4xx_miiphy_read, emac4xx_miiphy_write);
#endif
#endif
} /* end for each supported device */
return 0;
}
#if !defined(CONFIG_NET_MULTI)
void eth_halt (void) {
if (emac0_dev) {
ppc_4xx_eth_halt(emac0_dev);
free(emac0_dev);
emac0_dev = NULL;
}
}
int eth_init (bd_t *bis)
{
ppc_4xx_eth_initialize(bis);
if (emac0_dev) {
return ppc_4xx_eth_init(emac0_dev, bis);
} else {
printf("ERROR: ethaddr not set!\n");
return -1;
}
}
int eth_send(volatile void *packet, int length)
{
return (ppc_4xx_eth_send(emac0_dev, packet, length));
}
int eth_rx(void)
{
return (ppc_4xx_eth_rx(emac0_dev));
}
int emac4xx_miiphy_initialize (bd_t * bis)
{
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
miiphy_register ("ppc_4xx_eth0",
emac4xx_miiphy_read, emac4xx_miiphy_write);
#endif
return 0;
}
#endif /* !defined(CONFIG_NET_MULTI) */
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