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u-boot/drivers/net/tsi108_eth.c
Ben Warren 422b1a0160 Fix Ethernet init() return codes 
Change return values of init() functions in all Ethernet drivers to conform
to the following:

    >=0: Success
    <0:  Failure

All drivers going forward should return 0 on success.  Current drivers that
return 1 on success were left as-is to minimize changes.

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-By: Timur Tabi <timur@freescale.com>
2008-01-10 01:06:02 +01:00

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/***********************************************************************
*
* Copyright (c) 2005 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Description:
* Ethernet interface for Tundra TSI108 bridge chip
*
***********************************************************************/
#include <config.h>
#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) \
&& defined(CONFIG_TSI108_ETH)
#if !defined(CONFIG_TSI108_ETH_NUM_PORTS) || (CONFIG_TSI108_ETH_NUM_PORTS > 2)
#error "CONFIG_TSI108_ETH_NUM_PORTS must be defined as 1 or 2"
#endif
#include <common.h>
#include <malloc.h>
#include <net.h>
#include <asm/cache.h>
#ifdef DEBUG
#define TSI108_ETH_DEBUG 7
#else
#define TSI108_ETH_DEBUG 0
#endif
#if TSI108_ETH_DEBUG > 0
#define debug_lev(lev, fmt, args...) \
if (lev <= TSI108_ETH_DEBUG) \
printf ("%s %d: " fmt, __FUNCTION__, __LINE__, ##args)
#else
#define debug_lev(lev, fmt, args...) do{}while(0)
#endif
#define RX_PRINT_ERRORS
#define TX_PRINT_ERRORS
#define ETH_BASE (CFG_TSI108_CSR_BASE + 0x6000)
#define ETH_PORT_OFFSET 0x400
#define __REG32(base, offset) (*((volatile u32 *)((char *)(base) + (offset))))
#define reg_MAC_CONFIG_1(base) __REG32(base, 0x00000000)
#define MAC_CONFIG_1_TX_ENABLE (0x00000001)
#define MAC_CONFIG_1_SYNC_TX_ENABLE (0x00000002)
#define MAC_CONFIG_1_RX_ENABLE (0x00000004)
#define MAC_CONFIG_1_SYNC_RX_ENABLE (0x00000008)
#define MAC_CONFIG_1_TX_FLOW_CONTROL (0x00000010)
#define MAC_CONFIG_1_RX_FLOW_CONTROL (0x00000020)
#define MAC_CONFIG_1_LOOP_BACK (0x00000100)
#define MAC_CONFIG_1_RESET_TX_FUNCTION (0x00010000)
#define MAC_CONFIG_1_RESET_RX_FUNCTION (0x00020000)
#define MAC_CONFIG_1_RESET_TX_MAC (0x00040000)
#define MAC_CONFIG_1_RESET_RX_MAC (0x00080000)
#define MAC_CONFIG_1_SIM_RESET (0x40000000)
#define MAC_CONFIG_1_SOFT_RESET (0x80000000)
#define reg_MAC_CONFIG_2(base) __REG32(base, 0x00000004)
#define MAC_CONFIG_2_FULL_DUPLEX (0x00000001)
#define MAC_CONFIG_2_CRC_ENABLE (0x00000002)
#define MAC_CONFIG_2_PAD_CRC (0x00000004)
#define MAC_CONFIG_2_LENGTH_CHECK (0x00000010)
#define MAC_CONFIG_2_HUGE_FRAME (0x00000020)
#define MAC_CONFIG_2_INTERFACE_MODE(val) (((val) & 0x3) << 8)
#define MAC_CONFIG_2_PREAMBLE_LENGTH(val) (((val) & 0xf) << 12)
#define INTERFACE_MODE_NIBBLE 1 /* 10/100 Mb/s MII) */
#define INTERFACE_MODE_BYTE 2 /* 1000 Mb/s GMII/TBI */
#define reg_MAXIMUM_FRAME_LENGTH(base) __REG32(base, 0x00000010)
#define reg_MII_MGMT_CONFIG(base) __REG32(base, 0x00000020)
#define MII_MGMT_CONFIG_MGMT_CLOCK_SELECT(val) ((val) & 0x7)
#define MII_MGMT_CONFIG_NO_PREAMBLE (0x00000010)
#define MII_MGMT_CONFIG_SCAN_INCREMENT (0x00000020)
#define MII_MGMT_CONFIG_RESET_MGMT (0x80000000)
#define reg_MII_MGMT_COMMAND(base) __REG32(base, 0x00000024)
#define MII_MGMT_COMMAND_READ_CYCLE (0x00000001)
#define MII_MGMT_COMMAND_SCAN_CYCLE (0x00000002)
#define reg_MII_MGMT_ADDRESS(base) __REG32(base, 0x00000028)
#define reg_MII_MGMT_CONTROL(base) __REG32(base, 0x0000002c)
#define reg_MII_MGMT_STATUS(base) __REG32(base, 0x00000030)
#define reg_MII_MGMT_INDICATORS(base) __REG32(base, 0x00000034)
#define MII_MGMT_INDICATORS_BUSY (0x00000001)
#define MII_MGMT_INDICATORS_SCAN (0x00000002)
#define MII_MGMT_INDICATORS_NOT_VALID (0x00000004)
#define reg_INTERFACE_STATUS(base) __REG32(base, 0x0000003c)
#define INTERFACE_STATUS_LINK_FAIL (0x00000008)
#define INTERFACE_STATUS_EXCESS_DEFER (0x00000200)
#define reg_STATION_ADDRESS_1(base) __REG32(base, 0x00000040)
#define reg_STATION_ADDRESS_2(base) __REG32(base, 0x00000044)
#define reg_PORT_CONTROL(base) __REG32(base, 0x00000200)
#define PORT_CONTROL_PRI (0x00000001)
#define PORT_CONTROL_BPT (0x00010000)
#define PORT_CONTROL_SPD (0x00040000)
#define PORT_CONTROL_RBC (0x00080000)
#define PORT_CONTROL_PRB (0x00200000)
#define PORT_CONTROL_DIS (0x00400000)
#define PORT_CONTROL_TBI (0x00800000)
#define PORT_CONTROL_STE (0x10000000)
#define PORT_CONTROL_ZOR (0x20000000)
#define PORT_CONTROL_CLR (0x40000000)
#define PORT_CONTROL_SRT (0x80000000)
#define reg_TX_CONFIG(base) __REG32(base, 0x00000220)
#define TX_CONFIG_START_Q (0x00000003)
#define TX_CONFIG_EHP (0x00400000)
#define TX_CONFIG_CHP (0x00800000)
#define TX_CONFIG_RST (0x80000000)
#define reg_TX_CONTROL(base) __REG32(base, 0x00000224)
#define TX_CONTROL_GO (0x00008000)
#define TX_CONTROL_MP (0x01000000)
#define TX_CONTROL_EAI (0x20000000)
#define TX_CONTROL_ABT (0x40000000)
#define TX_CONTROL_EII (0x80000000)
#define reg_TX_STATUS(base) __REG32(base, 0x00000228)
#define TX_STATUS_QUEUE_USABLE (0x0000000f)
#define TX_STATUS_CURR_Q (0x00000300)
#define TX_STATUS_ACT (0x00008000)
#define TX_STATUS_QUEUE_IDLE (0x000f0000)
#define TX_STATUS_EOQ_PENDING (0x0f000000)
#define reg_TX_EXTENDED_STATUS(base) __REG32(base, 0x0000022c)
#define TX_EXTENDED_STATUS_END_OF_QUEUE_CONDITION (0x0000000f)
#define TX_EXTENDED_STATUS_END_OF_FRAME_CONDITION (0x00000f00)
#define TX_EXTENDED_STATUS_DESCRIPTOR_INTERRUPT_CONDITION (0x000f0000)
#define TX_EXTENDED_STATUS_ERROR_FLAG (0x0f000000)
#define reg_TX_THRESHOLDS(base) __REG32(base, 0x00000230)
#define reg_TX_DIAGNOSTIC_ADDR(base) __REG32(base, 0x00000270)
#define TX_DIAGNOSTIC_ADDR_INDEX (0x0000007f)
#define TX_DIAGNOSTIC_ADDR_DFR (0x40000000)
#define TX_DIAGNOSTIC_ADDR_AI (0x80000000)
#define reg_TX_DIAGNOSTIC_DATA(base) __REG32(base, 0x00000274)
#define reg_TX_ERROR_STATUS(base) __REG32(base, 0x00000278)
#define TX_ERROR_STATUS (0x00000278)
#define TX_ERROR_STATUS_QUEUE_0_ERROR_RESPONSE (0x0000000f)
#define TX_ERROR_STATUS_TEA_ON_QUEUE_0 (0x00000010)
#define TX_ERROR_STATUS_RER_ON_QUEUE_0 (0x00000020)
#define TX_ERROR_STATUS_TER_ON_QUEUE_0 (0x00000040)
#define TX_ERROR_STATUS_DER_ON_QUEUE_0 (0x00000080)
#define TX_ERROR_STATUS_QUEUE_1_ERROR_RESPONSE (0x00000f00)
#define TX_ERROR_STATUS_TEA_ON_QUEUE_1 (0x00001000)
#define TX_ERROR_STATUS_RER_ON_QUEUE_1 (0x00002000)
#define TX_ERROR_STATUS_TER_ON_QUEUE_1 (0x00004000)
#define TX_ERROR_STATUS_DER_ON_QUEUE_1 (0x00008000)
#define TX_ERROR_STATUS_QUEUE_2_ERROR_RESPONSE (0x000f0000)
#define TX_ERROR_STATUS_TEA_ON_QUEUE_2 (0x00100000)
#define TX_ERROR_STATUS_RER_ON_QUEUE_2 (0x00200000)
#define TX_ERROR_STATUS_TER_ON_QUEUE_2 (0x00400000)
#define TX_ERROR_STATUS_DER_ON_QUEUE_2 (0x00800000)
#define TX_ERROR_STATUS_QUEUE_3_ERROR_RESPONSE (0x0f000000)
#define TX_ERROR_STATUS_TEA_ON_QUEUE_3 (0x10000000)
#define TX_ERROR_STATUS_RER_ON_QUEUE_3 (0x20000000)
#define TX_ERROR_STATUS_TER_ON_QUEUE_3 (0x40000000)
#define TX_ERROR_STATUS_DER_ON_QUEUE_3 (0x80000000)
#define reg_TX_QUEUE_0_CONFIG(base) __REG32(base, 0x00000280)
#define TX_QUEUE_0_CONFIG_OCN_PORT (0x0000003f)
#define TX_QUEUE_0_CONFIG_BSWP (0x00000400)
#define TX_QUEUE_0_CONFIG_WSWP (0x00000800)
#define TX_QUEUE_0_CONFIG_AM (0x00004000)
#define TX_QUEUE_0_CONFIG_GVI (0x00008000)
#define TX_QUEUE_0_CONFIG_EEI (0x00010000)
#define TX_QUEUE_0_CONFIG_ELI (0x00020000)
#define TX_QUEUE_0_CONFIG_ENI (0x00040000)
#define TX_QUEUE_0_CONFIG_ESI (0x00080000)
#define TX_QUEUE_0_CONFIG_EDI (0x00100000)
#define reg_TX_QUEUE_0_BUF_CONFIG(base) __REG32(base, 0x00000284)
#define TX_QUEUE_0_BUF_CONFIG_OCN_PORT (0x0000003f)
#define TX_QUEUE_0_BUF_CONFIG_BURST (0x00000300)
#define TX_QUEUE_0_BUF_CONFIG_BSWP (0x00000400)
#define TX_QUEUE_0_BUF_CONFIG_WSWP (0x00000800)
#define OCN_PORT_HLP 0 /* HLP Interface */
#define OCN_PORT_PCI_X 1 /* PCI-X Interface */
#define OCN_PORT_PROCESSOR_MASTER 2 /* Processor Interface (master) */
#define OCN_PORT_PROCESSOR_SLAVE 3 /* Processor Interface (slave) */
#define OCN_PORT_MEMORY 4 /* Memory Controller */
#define OCN_PORT_DMA 5 /* DMA Controller */
#define OCN_PORT_ETHERNET 6 /* Ethernet Controller */
#define OCN_PORT_PRINT 7 /* Print Engine Interface */
#define reg_TX_QUEUE_0_PTR_LOW(base) __REG32(base, 0x00000288)
#define reg_TX_QUEUE_0_PTR_HIGH(base) __REG32(base, 0x0000028c)
#define TX_QUEUE_0_PTR_HIGH_VALID (0x80000000)
#define reg_RX_CONFIG(base) __REG32(base, 0x00000320)
#define RX_CONFIG_DEF_Q (0x00000003)
#define RX_CONFIG_EMF (0x00000100)
#define RX_CONFIG_EUF (0x00000200)
#define RX_CONFIG_BFE (0x00000400)
#define RX_CONFIG_MFE (0x00000800)
#define RX_CONFIG_UFE (0x00001000)
#define RX_CONFIG_SE (0x00002000)
#define RX_CONFIG_ABF (0x00200000)
#define RX_CONFIG_APE (0x00400000)
#define RX_CONFIG_CHP (0x00800000)
#define RX_CONFIG_RST (0x80000000)
#define reg_RX_CONTROL(base) __REG32(base, 0x00000324)
#define GE_E0_RX_CONTROL_QUEUE_ENABLES (0x0000000f)
#define GE_E0_RX_CONTROL_GO (0x00008000)
#define GE_E0_RX_CONTROL_EAI (0x20000000)
#define GE_E0_RX_CONTROL_ABT (0x40000000)
#define GE_E0_RX_CONTROL_EII (0x80000000)
#define reg_RX_EXTENDED_STATUS(base) __REG32(base, 0x0000032c)
#define RX_EXTENDED_STATUS (0x0000032c)
#define RX_EXTENDED_STATUS_EOQ (0x0000000f)
#define RX_EXTENDED_STATUS_EOQ_0 (0x00000001)
#define RX_EXTENDED_STATUS_EOF (0x00000f00)
#define RX_EXTENDED_STATUS_DESCRIPTOR_INTERRUPT_CONDITION (0x000f0000)
#define RX_EXTENDED_STATUS_ERROR_FLAG (0x0f000000)
#define reg_RX_THRESHOLDS(base) __REG32(base, 0x00000330)
#define reg_RX_DIAGNOSTIC_ADDR(base) __REG32(base, 0x00000370)
#define RX_DIAGNOSTIC_ADDR_INDEX (0x0000007f)
#define RX_DIAGNOSTIC_ADDR_DFR (0x40000000)
#define RX_DIAGNOSTIC_ADDR_AI (0x80000000)
#define reg_RX_DIAGNOSTIC_DATA(base) __REG32(base, 0x00000374)
#define reg_RX_QUEUE_0_CONFIG(base) __REG32(base, 0x00000380)
#define RX_QUEUE_0_CONFIG_OCN_PORT (0x0000003f)
#define RX_QUEUE_0_CONFIG_BSWP (0x00000400)
#define RX_QUEUE_0_CONFIG_WSWP (0x00000800)
#define RX_QUEUE_0_CONFIG_AM (0x00004000)
#define RX_QUEUE_0_CONFIG_EEI (0x00010000)
#define RX_QUEUE_0_CONFIG_ELI (0x00020000)
#define RX_QUEUE_0_CONFIG_ENI (0x00040000)
#define RX_QUEUE_0_CONFIG_ESI (0x00080000)
#define RX_QUEUE_0_CONFIG_EDI (0x00100000)
#define reg_RX_QUEUE_0_BUF_CONFIG(base) __REG32(base, 0x00000384)
#define RX_QUEUE_0_BUF_CONFIG_OCN_PORT (0x0000003f)
#define RX_QUEUE_0_BUF_CONFIG_BURST (0x00000300)
#define RX_QUEUE_0_BUF_CONFIG_BSWP (0x00000400)
#define RX_QUEUE_0_BUF_CONFIG_WSWP (0x00000800)
#define reg_RX_QUEUE_0_PTR_LOW(base) __REG32(base, 0x00000388)
#define reg_RX_QUEUE_0_PTR_HIGH(base) __REG32(base, 0x0000038c)
#define RX_QUEUE_0_PTR_HIGH_VALID (0x80000000)
/*
* PHY register definitions
*/
/* the first 15 PHY registers are standard. */
#define PHY_CTRL_REG 0 /* Control Register */
#define PHY_STATUS_REG 1 /* Status Regiser */
#define PHY_ID1_REG 2 /* Phy Id Reg (word 1) */
#define PHY_ID2_REG 3 /* Phy Id Reg (word 2) */
#define PHY_AN_ADV_REG 4 /* Autoneg Advertisement */
#define PHY_LP_ABILITY_REG 5 /* Link Partner Ability (Base Page) */
#define PHY_AUTONEG_EXP_REG 6 /* Autoneg Expansion Reg */
#define PHY_NEXT_PAGE_TX_REG 7 /* Next Page TX */
#define PHY_LP_NEXT_PAGE_REG 8 /* Link Partner Next Page */
#define PHY_1000T_CTRL_REG 9 /* 1000Base-T Control Reg */
#define PHY_1000T_STATUS_REG 10 /* 1000Base-T Status Reg */
#define PHY_EXT_STATUS_REG 11 /* Extended Status Reg */
/*
* PHY Register bit masks.
*/
#define PHY_CTRL_RESET (1 << 15)
#define PHY_CTRL_LOOPBACK (1 << 14)
#define PHY_CTRL_SPEED0 (1 << 13)
#define PHY_CTRL_AN_EN (1 << 12)
#define PHY_CTRL_PWR_DN (1 << 11)
#define PHY_CTRL_ISOLATE (1 << 10)
#define PHY_CTRL_RESTART_AN (1 << 9)
#define PHY_CTRL_FULL_DUPLEX (1 << 8)
#define PHY_CTRL_CT_EN (1 << 7)
#define PHY_CTRL_SPEED1 (1 << 6)
#define PHY_STAT_100BASE_T4 (1 << 15)
#define PHY_STAT_100BASE_X_FD (1 << 14)
#define PHY_STAT_100BASE_X_HD (1 << 13)
#define PHY_STAT_10BASE_T_FD (1 << 12)
#define PHY_STAT_10BASE_T_HD (1 << 11)
#define PHY_STAT_100BASE_T2_FD (1 << 10)
#define PHY_STAT_100BASE_T2_HD (1 << 9)
#define PHY_STAT_EXT_STAT (1 << 8)
#define PHY_STAT_RESERVED (1 << 7)
#define PHY_STAT_MFPS (1 << 6) /* Management Frames Preamble Suppression */
#define PHY_STAT_AN_COMPLETE (1 << 5)
#define PHY_STAT_REM_FAULT (1 << 4)
#define PHY_STAT_AN_CAP (1 << 3)
#define PHY_STAT_LINK_UP (1 << 2)
#define PHY_STAT_JABBER (1 << 1)
#define PHY_STAT_EXT_CAP (1 << 0)
#define TBI_CONTROL_2 0x11
#define TBI_CONTROL_2_ENABLE_COMMA_DETECT 0x0001
#define TBI_CONTROL_2_ENABLE_WRAP 0x0002
#define TBI_CONTROL_2_G_MII_MODE 0x0010
#define TBI_CONTROL_2_RECEIVE_CLOCK_SELECT 0x0020
#define TBI_CONTROL_2_AUTO_NEGOTIATION_SENSE 0x0100
#define TBI_CONTROL_2_DISABLE_TRANSMIT_RUNNING_DISPARITY 0x1000
#define TBI_CONTROL_2_DISABLE_RECEIVE_RUNNING_DISPARITY 0x2000
#define TBI_CONTROL_2_SHORTCUT_LINK_TIMER 0x4000
#define TBI_CONTROL_2_SOFT_RESET 0x8000
/* marvel specific */
#define MV1111_EXT_CTRL1_REG 16 /* PHY Specific Control Reg */
#define MV1111_SPEC_STAT_REG 17 /* PHY Specific Status Reg */
#define MV1111_EXT_CTRL2_REG 20 /* Extended PHY Specific Control Reg */
/*
* MARVELL 88E1111 PHY register bit masks
*/
/* PHY Specific Status Register (MV1111_EXT_CTRL1_REG) */
#define SPEC_STAT_SPEED_MASK (3 << 14)
#define SPEC_STAT_FULL_DUP (1 << 13)
#define SPEC_STAT_PAGE_RCVD (1 << 12)
#define SPEC_STAT_RESOLVED (1 << 11) /* Speed and Duplex Resolved */
#define SPEC_STAT_LINK_UP (1 << 10)
#define SPEC_STAT_CABLE_LEN_MASK (7 << 7)/* Cable Length (100/1000 modes only) */
#define SPEC_STAT_MDIX (1 << 6)
#define SPEC_STAT_POLARITY (1 << 1)
#define SPEC_STAT_JABBER (1 << 0)
#define SPEED_1000 (2 << 14)
#define SPEED_100 (1 << 14)
#define SPEED_10 (0 << 14)
#define TBI_ADDR 0x1E /* Ten Bit Interface address */
/* negotiated link parameters */
#define LINK_SPEED_UNKNOWN 0
#define LINK_SPEED_10 1
#define LINK_SPEED_100 2
#define LINK_SPEED_1000 3
#define LINK_DUPLEX_UNKNOWN 0
#define LINK_DUPLEX_HALF 1
#define LINK_DUPLEX_FULL 2
static unsigned int phy_address[] = { 8, 9 };
#define vuint32 volatile u32
/* TX/RX buffer descriptors. MUST be cache line aligned in memory. (32 byte)
* This structure is accessed by the ethernet DMA engine which means it
* MUST be in LITTLE ENDIAN format */
struct dma_descriptor {
vuint32 start_addr0; /* buffer address, least significant bytes. */
vuint32 start_addr1; /* buffer address, most significant bytes. */
vuint32 next_descr_addr0;/* next descriptor address, least significant bytes. Must be 64-bit aligned. */
vuint32 next_descr_addr1;/* next descriptor address, most significant bytes. */
vuint32 vlan_byte_count;/* VLAN tag(top 2 bytes) and byte countt (bottom 2 bytes). */
vuint32 config_status; /* Configuration/Status. */
vuint32 reserved1; /* reserved to make the descriptor cache line aligned. */
vuint32 reserved2; /* reserved to make the descriptor cache line aligned. */
};
/* last next descriptor address flag */
#define DMA_DESCR_LAST (1 << 31)
/* TX DMA descriptor config status bits */
#define DMA_DESCR_TX_EOF (1 << 0) /* end of frame */
#define DMA_DESCR_TX_SOF (1 << 1) /* start of frame */
#define DMA_DESCR_TX_PFVLAN (1 << 2)
#define DMA_DESCR_TX_HUGE (1 << 3)
#define DMA_DESCR_TX_PAD (1 << 4)
#define DMA_DESCR_TX_CRC (1 << 5)
#define DMA_DESCR_TX_DESCR_INT (1 << 14)
#define DMA_DESCR_TX_RETRY_COUNT 0x000F0000
#define DMA_DESCR_TX_ONE_COLLISION (1 << 20)
#define DMA_DESCR_TX_LATE_COLLISION (1 << 24)
#define DMA_DESCR_TX_UNDERRUN (1 << 25)
#define DMA_DESCR_TX_RETRY_LIMIT (1 << 26)
#define DMA_DESCR_TX_OK (1 << 30)
#define DMA_DESCR_TX_OWNER (1 << 31)
/* RX DMA descriptor status bits */
#define DMA_DESCR_RX_EOF (1 << 0)
#define DMA_DESCR_RX_SOF (1 << 1)
#define DMA_DESCR_RX_VTF (1 << 2)
#define DMA_DESCR_RX_FRAME_IS_TYPE (1 << 3)
#define DMA_DESCR_RX_SHORT_FRAME (1 << 4)
#define DMA_DESCR_RX_HASH_MATCH (1 << 7)
#define DMA_DESCR_RX_BAD_FRAME (1 << 8)
#define DMA_DESCR_RX_OVERRUN (1 << 9)
#define DMA_DESCR_RX_MAX_FRAME_LEN (1 << 11)
#define DMA_DESCR_RX_CRC_ERROR (1 << 12)
#define DMA_DESCR_RX_DESCR_INT (1 << 13)
#define DMA_DESCR_RX_OWNER (1 << 15)
#define RX_BUFFER_SIZE PKTSIZE
#define NUM_RX_DESC PKTBUFSRX
static struct dma_descriptor tx_descriptor __attribute__ ((aligned(32)));
static struct dma_descriptor rx_descr_array[NUM_RX_DESC]
__attribute__ ((aligned(32)));
static struct dma_descriptor *rx_descr_current;
static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis);
static int tsi108_eth_send (struct eth_device *dev,
volatile void *packet, int length);
static int tsi108_eth_recv (struct eth_device *dev);
static void tsi108_eth_halt (struct eth_device *dev);
static unsigned int read_phy (unsigned int base,
unsigned int phy_addr, unsigned int phy_reg);
static void write_phy (unsigned int base,
unsigned int phy_addr,
unsigned int phy_reg, unsigned int phy_data);
#if TSI108_ETH_DEBUG > 100
/*
* print phy debug infomation
*/
static void dump_phy_regs (unsigned int phy_addr)
{
int i;
printf ("PHY %d registers\n", phy_addr);
for (i = 0; i <= 30; i++) {
printf ("%2d 0x%04x\n", i, read_phy (ETH_BASE, phy_addr, i));
}
printf ("\n");
}
#else
#define dump_phy_regs(base) do{}while(0)
#endif
#if TSI108_ETH_DEBUG > 100
/*
* print debug infomation
*/
static void tx_diag_regs (unsigned int base)
{
int i;
unsigned long dummy;
printf ("TX diagnostics registers\n");
reg_TX_DIAGNOSTIC_ADDR(base) = 0x00 | TX_DIAGNOSTIC_ADDR_AI;
udelay (1000);
dummy = reg_TX_DIAGNOSTIC_DATA(base);
for (i = 0x00; i <= 0x05; i++) {
udelay (1000);
printf ("0x%02x 0x%08x\n", i, reg_TX_DIAGNOSTIC_DATA(base));
}
reg_TX_DIAGNOSTIC_ADDR(base) = 0x40 | TX_DIAGNOSTIC_ADDR_AI;
udelay (1000);
dummy = reg_TX_DIAGNOSTIC_DATA(base);
for (i = 0x40; i <= 0x47; i++) {
udelay (1000);
printf ("0x%02x 0x%08x\n", i, reg_TX_DIAGNOSTIC_DATA(base));
}
printf ("\n");
}
#else
#define tx_diag_regs(base) do{}while(0)
#endif
#if TSI108_ETH_DEBUG > 100
/*
* print debug infomation
*/
static void rx_diag_regs (unsigned int base)
{
int i;
unsigned long dummy;
printf ("RX diagnostics registers\n");
reg_RX_DIAGNOSTIC_ADDR(base) = 0x00 | RX_DIAGNOSTIC_ADDR_AI;
udelay (1000);
dummy = reg_RX_DIAGNOSTIC_DATA(base);
for (i = 0x00; i <= 0x05; i++) {
udelay (1000);
printf ("0x%02x 0x%08x\n", i, reg_RX_DIAGNOSTIC_DATA(base));
}
reg_RX_DIAGNOSTIC_ADDR(base) = 0x40 | RX_DIAGNOSTIC_ADDR_AI;
udelay (1000);
dummy = reg_RX_DIAGNOSTIC_DATA(base);
for (i = 0x08; i <= 0x0a; i++) {
udelay (1000);
printf ("0x%02x 0x%08x\n", i, reg_RX_DIAGNOSTIC_DATA(base));
}
printf ("\n");
}
#else
#define rx_diag_regs(base) do{}while(0)
#endif
#if TSI108_ETH_DEBUG > 100
/*
* print debug infomation
*/
static void debug_mii_regs (unsigned int base)
{
printf ("MII_MGMT_CONFIG 0x%08x\n", reg_MII_MGMT_CONFIG(base));
printf ("MII_MGMT_COMMAND 0x%08x\n", reg_MII_MGMT_COMMAND(base));
printf ("MII_MGMT_ADDRESS 0x%08x\n", reg_MII_MGMT_ADDRESS(base));
printf ("MII_MGMT_CONTROL 0x%08x\n", reg_MII_MGMT_CONTROL(base));
printf ("MII_MGMT_STATUS 0x%08x\n", reg_MII_MGMT_STATUS(base));
printf ("MII_MGMT_INDICATORS 0x%08x\n", reg_MII_MGMT_INDICATORS(base));
printf ("\n");
}
#else
#define debug_mii_regs(base) do{}while(0)
#endif
/*
* Wait until the phy bus is non-busy
*/
static void phy_wait (unsigned int base, unsigned int condition)
{
int timeout;
timeout = 0;
while (reg_MII_MGMT_INDICATORS(base) & condition) {
udelay (10);
if (++timeout > 10000) {
printf ("ERROR: timeout waiting for phy bus (%d)\n",
condition);
break;
}
}
}
/*
* read phy register
*/
static unsigned int read_phy (unsigned int base,
unsigned int phy_addr, unsigned int phy_reg)
{
unsigned int value;
phy_wait (base, MII_MGMT_INDICATORS_BUSY);
reg_MII_MGMT_ADDRESS(base) = (phy_addr << 8) | phy_reg;
/* Ensure that the Read Cycle bit is cleared prior to next read cycle */
reg_MII_MGMT_COMMAND(base) = 0;
/* start the read */
reg_MII_MGMT_COMMAND(base) = MII_MGMT_COMMAND_READ_CYCLE;
/* wait for the read to complete */
phy_wait (base,
MII_MGMT_INDICATORS_NOT_VALID | MII_MGMT_INDICATORS_BUSY);
value = reg_MII_MGMT_STATUS(base);
reg_MII_MGMT_COMMAND(base) = 0;
return value;
}
/*
* write phy register
*/
static void write_phy (unsigned int base,
unsigned int phy_addr,
unsigned int phy_reg, unsigned int phy_data)
{
phy_wait (base, MII_MGMT_INDICATORS_BUSY);
reg_MII_MGMT_ADDRESS(base) = (phy_addr << 8) | phy_reg;
/* Ensure that the Read Cycle bit is cleared prior to next cycle */
reg_MII_MGMT_COMMAND(base) = 0;
/* start the write */
reg_MII_MGMT_CONTROL(base) = phy_data;
}
/*
* configure the marvell 88e1111 phy
*/
static int marvell_88e_phy_config (struct eth_device *dev, int *speed,
int *duplex)
{
unsigned long base;
unsigned long phy_addr;
unsigned int phy_status;
unsigned int phy_spec_status;
int timeout;
int phy_speed;
int phy_duplex;
unsigned int value;
phy_speed = LINK_SPEED_UNKNOWN;
phy_duplex = LINK_DUPLEX_UNKNOWN;
base = dev->iobase;
phy_addr = (unsigned long)dev->priv;
/* Take the PHY out of reset. */
write_phy (ETH_BASE, phy_addr, PHY_CTRL_REG, PHY_CTRL_RESET);
/* Wait for the reset process to complete. */
udelay (10);
timeout = 0;
while ((phy_status =
read_phy (ETH_BASE, phy_addr, PHY_CTRL_REG)) & PHY_CTRL_RESET) {
udelay (10);
if (++timeout > 10000) {
printf ("ERROR: timeout waiting for phy reset\n");
break;
}
}
/* TBI Configuration. */
write_phy (base, TBI_ADDR, TBI_CONTROL_2, TBI_CONTROL_2_G_MII_MODE |
TBI_CONTROL_2_RECEIVE_CLOCK_SELECT);
/* Wait for the link to be established. */
timeout = 0;
do {
udelay (20000);
phy_status = read_phy (ETH_BASE, phy_addr, PHY_STATUS_REG);
if (++timeout > 100) {
debug_lev(1, "ERROR: unable to establish link!!!\n");
break;
}
} while ((phy_status & PHY_STAT_LINK_UP) == 0);
if ((phy_status & PHY_STAT_LINK_UP) == 0)
return 0;
value = 0;
phy_spec_status = read_phy (ETH_BASE, phy_addr, MV1111_SPEC_STAT_REG);
if (phy_spec_status & SPEC_STAT_RESOLVED) {
switch (phy_spec_status & SPEC_STAT_SPEED_MASK) {
case SPEED_1000:
phy_speed = LINK_SPEED_1000;
value |= PHY_CTRL_SPEED1;
break;
case SPEED_100:
phy_speed = LINK_SPEED_100;
value |= PHY_CTRL_SPEED0;
break;
case SPEED_10:
phy_speed = LINK_SPEED_10;
break;
}
if (phy_spec_status & SPEC_STAT_FULL_DUP) {
phy_duplex = LINK_DUPLEX_FULL;
value |= PHY_CTRL_FULL_DUPLEX;
} else
phy_duplex = LINK_DUPLEX_HALF;
}
/* set TBI speed */
write_phy (base, TBI_ADDR, PHY_CTRL_REG, value);
write_phy (base, TBI_ADDR, PHY_AN_ADV_REG, 0x0060);
#if TSI108_ETH_DEBUG > 0
printf ("%s link is up", dev->name);
phy_spec_status = read_phy (ETH_BASE, phy_addr, MV1111_SPEC_STAT_REG);
if (phy_spec_status & SPEC_STAT_RESOLVED) {
switch (phy_speed) {
case LINK_SPEED_1000:
printf (", 1000 Mbps");
break;
case LINK_SPEED_100:
printf (", 100 Mbps");
break;
case LINK_SPEED_10:
printf (", 10 Mbps");
break;
}
if (phy_duplex == LINK_DUPLEX_FULL)
printf (", Full duplex");
else
printf (", Half duplex");
}
printf ("\n");
#endif
dump_phy_regs (TBI_ADDR);
if (speed)
*speed = phy_speed;
if (duplex)
*duplex = phy_duplex;
return 1;
}
/*
* External interface
*
* register the tsi108 ethernet controllers with the multi-ethernet system
*/
int tsi108_eth_initialize (bd_t * bis)
{
struct eth_device *dev;
int index;
for (index = 0; index < CONFIG_TSI108_ETH_NUM_PORTS; index++) {
dev = (struct eth_device *)malloc(sizeof(struct eth_device));
sprintf (dev->name, "TSI108_eth%d", index);
dev->iobase = ETH_BASE + (index * ETH_PORT_OFFSET);
dev->priv = (void *)(phy_address[index]);
dev->init = tsi108_eth_probe;
dev->halt = tsi108_eth_halt;
dev->send = tsi108_eth_send;
dev->recv = tsi108_eth_recv;
eth_register(dev);
}
return index;
}
/*
* probe for and initialize a single ethernet interface
*/
static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis)
{
unsigned long base;
unsigned long value;
int index;
struct dma_descriptor *tx_descr;
struct dma_descriptor *rx_descr;
int speed;
int duplex;
base = dev->iobase;
reg_PORT_CONTROL(base) = PORT_CONTROL_STE | PORT_CONTROL_BPT;
/* Bring DMA/FIFO out of reset. */
reg_TX_CONFIG(base) = 0x00000000;
reg_RX_CONFIG(base) = 0x00000000;
reg_TX_THRESHOLDS(base) = (192 << 16) | 192;
reg_RX_THRESHOLDS(base) = (192 << 16) | 112;
/* Bring MAC out of reset. */
reg_MAC_CONFIG_1(base) = 0x00000000;
/* DMA MAC configuration. */
reg_MAC_CONFIG_1(base) =
MAC_CONFIG_1_RX_ENABLE | MAC_CONFIG_1_TX_ENABLE;
reg_MII_MGMT_CONFIG(base) = MII_MGMT_CONFIG_NO_PREAMBLE;
reg_MAXIMUM_FRAME_LENGTH(base) = RX_BUFFER_SIZE;
/* Note: Early tsi108 manual did not have correct byte order
* for the station address.*/
reg_STATION_ADDRESS_1(base) = (dev->enetaddr[5] << 24) |
(dev->enetaddr[4] << 16) |
(dev->enetaddr[3] << 8) | (dev->enetaddr[2] << 0);
reg_STATION_ADDRESS_2(base) = (dev->enetaddr[1] << 24) |
(dev->enetaddr[0] << 16);
if (marvell_88e_phy_config(dev, &speed, &duplex) == 0)
return -1;
value =
MAC_CONFIG_2_PREAMBLE_LENGTH(7) | MAC_CONFIG_2_PAD_CRC |
MAC_CONFIG_2_CRC_ENABLE;
if (speed == LINK_SPEED_1000)
value |= MAC_CONFIG_2_INTERFACE_MODE(INTERFACE_MODE_BYTE);
else {
value |= MAC_CONFIG_2_INTERFACE_MODE(INTERFACE_MODE_NIBBLE);
reg_PORT_CONTROL(base) |= PORT_CONTROL_SPD;
}
if (duplex == LINK_DUPLEX_FULL) {
value |= MAC_CONFIG_2_FULL_DUPLEX;
reg_PORT_CONTROL(base) &= ~PORT_CONTROL_BPT;
} else
reg_PORT_CONTROL(base) |= PORT_CONTROL_BPT;
reg_MAC_CONFIG_2(base) = value;
reg_RX_CONFIG(base) = RX_CONFIG_SE;
reg_RX_QUEUE_0_CONFIG(base) = OCN_PORT_MEMORY;
reg_RX_QUEUE_0_BUF_CONFIG(base) = OCN_PORT_MEMORY;
/* initialize the RX DMA descriptors */
rx_descr = &rx_descr_array[0];
rx_descr_current = rx_descr;
for (index = 0; index < NUM_RX_DESC; index++) {
/* make sure the receive buffers are not in cache */
invalidate_dcache_range((unsigned long)NetRxPackets[index],
(unsigned long)NetRxPackets[index] +
RX_BUFFER_SIZE);
rx_descr->start_addr0 =
cpu_to_le32((vuint32) NetRxPackets[index]);
rx_descr->start_addr1 = 0;
rx_descr->next_descr_addr0 =
cpu_to_le32((vuint32) (rx_descr + 1));
rx_descr->next_descr_addr1 = 0;
rx_descr->vlan_byte_count = 0;
rx_descr->config_status = cpu_to_le32((RX_BUFFER_SIZE << 16) |
DMA_DESCR_RX_OWNER);
rx_descr++;
}
rx_descr--;
rx_descr->next_descr_addr0 = 0;
rx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST);
/* Push the descriptors to RAM so the ethernet DMA can see them */
invalidate_dcache_range((unsigned long)rx_descr_array,
(unsigned long)rx_descr_array +
sizeof(rx_descr_array));
/* enable RX queue */
reg_RX_CONTROL(base) = TX_CONTROL_GO | 0x01;
reg_RX_QUEUE_0_PTR_LOW(base) = (u32) rx_descr_current;
/* enable receive DMA */
reg_RX_QUEUE_0_PTR_HIGH(base) = RX_QUEUE_0_PTR_HIGH_VALID;
reg_TX_QUEUE_0_CONFIG(base) = OCN_PORT_MEMORY;
reg_TX_QUEUE_0_BUF_CONFIG(base) = OCN_PORT_MEMORY;
/* initialize the TX DMA descriptor */
tx_descr = &tx_descriptor;
tx_descr->start_addr0 = 0;
tx_descr->start_addr1 = 0;
tx_descr->next_descr_addr0 = 0;
tx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST);
tx_descr->vlan_byte_count = 0;
tx_descr->config_status = cpu_to_le32(DMA_DESCR_TX_OK |
DMA_DESCR_TX_SOF |
DMA_DESCR_TX_EOF);
/* enable TX queue */
reg_TX_CONTROL(base) = TX_CONTROL_GO | 0x01;
return 0;
}
/*
* send a packet
*/
static int tsi108_eth_send (struct eth_device *dev,
volatile void *packet, int length)
{
unsigned long base;
int timeout;
struct dma_descriptor *tx_descr;
unsigned long status;
base = dev->iobase;
tx_descr = &tx_descriptor;
/* Wait until the last packet has been transmitted. */
timeout = 0;
do {
/* make sure we see the changes made by the DMA engine */
invalidate_dcache_range((unsigned long)tx_descr,
(unsigned long)tx_descr +
sizeof(struct dma_descriptor));
if (timeout != 0)
udelay (15);
if (++timeout > 10000) {
tx_diag_regs(base);
debug_lev(1,
"ERROR: timeout waiting for last transmit packet to be sent\n");
return 0;
}
} while (tx_descr->config_status & cpu_to_le32(DMA_DESCR_TX_OWNER));
status = le32_to_cpu(tx_descr->config_status);
if ((status & DMA_DESCR_TX_OK) == 0) {
#ifdef TX_PRINT_ERRORS
printf ("TX packet error: 0x%08x\n %s%s%s%s\n", status,
status & DMA_DESCR_TX_OK ? "tx error, " : "",
status & DMA_DESCR_TX_RETRY_LIMIT ?
"retry limit reached, " : "",
status & DMA_DESCR_TX_UNDERRUN ? "underrun, " : "",
status & DMA_DESCR_TX_LATE_COLLISION ? "late collision, "
: "");
#endif
}
debug_lev (9, "sending packet %d\n", length);
tx_descr->start_addr0 = cpu_to_le32((vuint32) packet);
tx_descr->start_addr1 = 0;
tx_descr->next_descr_addr0 = 0;
tx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST);
tx_descr->vlan_byte_count = cpu_to_le32(length);
tx_descr->config_status = cpu_to_le32(DMA_DESCR_TX_OWNER |
DMA_DESCR_TX_CRC |
DMA_DESCR_TX_PAD |
DMA_DESCR_TX_SOF |
DMA_DESCR_TX_EOF);
invalidate_dcache_range((unsigned long)tx_descr,
(unsigned long)tx_descr +
sizeof(struct dma_descriptor));
invalidate_dcache_range((unsigned long)packet,
(unsigned long)packet + length);
reg_TX_QUEUE_0_PTR_LOW(base) = (u32) tx_descr;
reg_TX_QUEUE_0_PTR_HIGH(base) = TX_QUEUE_0_PTR_HIGH_VALID;
return length;
}
/*
* Check for received packets and send them up the protocal stack
*/
static int tsi108_eth_recv (struct eth_device *dev)
{
struct dma_descriptor *rx_descr;
unsigned long base;
int length = 0;
unsigned long status;
volatile uchar *buffer;
base = dev->iobase;
/* make sure we see the changes made by the DMA engine */
invalidate_dcache_range ((unsigned long)rx_descr_array,
(unsigned long)rx_descr_array +
sizeof(rx_descr_array));
/* process all of the received packets */
rx_descr = rx_descr_current;
while ((rx_descr->config_status & cpu_to_le32(DMA_DESCR_RX_OWNER)) == 0) {
/* check for error */
status = le32_to_cpu(rx_descr->config_status);
if (status & DMA_DESCR_RX_BAD_FRAME) {
#ifdef RX_PRINT_ERRORS
printf ("RX packet error: 0x%08x\n %s%s%s%s%s%s\n",
status,
status & DMA_DESCR_RX_FRAME_IS_TYPE ? "too big, "
: "",
status & DMA_DESCR_RX_SHORT_FRAME ? "too short, "
: "",
status & DMA_DESCR_RX_BAD_FRAME ? "bad frame, " :
"",
status & DMA_DESCR_RX_OVERRUN ? "overrun, " : "",
status & DMA_DESCR_RX_MAX_FRAME_LEN ?
"max length, " : "",
status & DMA_DESCR_RX_CRC_ERROR ? "CRC error, " :
"");
#endif
} else {
length =
le32_to_cpu(rx_descr->vlan_byte_count) & 0xFFFF;
/*** process packet ***/
buffer =
(volatile uchar
*)(le32_to_cpu (rx_descr->start_addr0));
NetReceive (buffer, length);
invalidate_dcache_range ((unsigned long)buffer,
(unsigned long)buffer +
RX_BUFFER_SIZE);
}
/* Give this buffer back to the DMA engine */
rx_descr->vlan_byte_count = 0;
rx_descr->config_status = cpu_to_le32 ((RX_BUFFER_SIZE << 16) |
DMA_DESCR_RX_OWNER);
/* move descriptor pointer forward */
rx_descr =
(struct dma_descriptor
*)(le32_to_cpu (rx_descr->next_descr_addr0));
if (rx_descr == 0)
rx_descr = &rx_descr_array[0];
}
/* remember where we are for next time */
rx_descr_current = rx_descr;
/* If the DMA engine has reached the end of the queue
* start over at the begining */
if (reg_RX_EXTENDED_STATUS(base) & RX_EXTENDED_STATUS_EOQ_0) {
reg_RX_EXTENDED_STATUS(base) = RX_EXTENDED_STATUS_EOQ_0;
reg_RX_QUEUE_0_PTR_LOW(base) = (u32) & rx_descr_array[0];
reg_RX_QUEUE_0_PTR_HIGH(base) = RX_QUEUE_0_PTR_HIGH_VALID;
}
return length;
}
/*
* disable an ethernet interface
*/
static void tsi108_eth_halt (struct eth_device *dev)
{
unsigned long base;
base = dev->iobase;
/* Put DMA/FIFO into reset state. */
reg_TX_CONFIG(base) = TX_CONFIG_RST;
reg_RX_CONFIG(base) = RX_CONFIG_RST;
/* Put MAC into reset state. */
reg_MAC_CONFIG_1(base) = MAC_CONFIG_1_SOFT_RESET;
}
#endif
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