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6e7df1d151
At this point, the remaining places where we have a symbol that is defined as CONFIG_... are in fairly odd locations. While as much dead code has been removed as possible, some of these locations are simply less obvious at first. In other cases, this code is used, but was defined in such a way as to have been missed by earlier checks. Perform a rename of all such remaining symbols to be CFG_... rather than CONFIG_... Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
881 lines
22 KiB
C
881 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <cpu_func.h>
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#include <malloc.h>
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#include <miiphy.h>
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#include <net.h>
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#include <netdev.h>
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#include <pci.h>
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#include <linux/delay.h>
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/* Ethernet chip registers. */
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#define SCB_STATUS 0 /* Rx/Command Unit Status *Word* */
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#define SCB_INT_ACK_BYTE 1 /* Rx/Command Unit STAT/ACK byte */
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#define SCB_CMD 2 /* Rx/Command Unit Command *Word* */
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#define SCB_INTR_CTL_BYTE 3 /* Rx/Command Unit Intr.Control Byte */
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#define SCB_POINTER 4 /* General purpose pointer. */
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#define SCB_PORT 8 /* Misc. commands and operands. */
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#define SCB_FLASH 12 /* Flash memory control. */
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#define SCB_EEPROM 14 /* EEPROM memory control. */
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#define SCB_CTRL_MDI 16 /* MDI interface control. */
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#define SCB_EARLY_RX 20 /* Early receive byte count. */
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#define SCB_GEN_CONTROL 28 /* 82559 General Control Register */
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#define SCB_GEN_STATUS 29 /* 82559 General Status register */
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/* 82559 SCB status word defnitions */
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#define SCB_STATUS_CX 0x8000 /* CU finished command (transmit) */
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#define SCB_STATUS_FR 0x4000 /* frame received */
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#define SCB_STATUS_CNA 0x2000 /* CU left active state */
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#define SCB_STATUS_RNR 0x1000 /* receiver left ready state */
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#define SCB_STATUS_MDI 0x0800 /* MDI read/write cycle done */
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#define SCB_STATUS_SWI 0x0400 /* software generated interrupt */
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#define SCB_STATUS_FCP 0x0100 /* flow control pause interrupt */
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#define SCB_INTACK_MASK 0xFD00 /* all the above */
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#define SCB_INTACK_TX (SCB_STATUS_CX | SCB_STATUS_CNA)
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#define SCB_INTACK_RX (SCB_STATUS_FR | SCB_STATUS_RNR)
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/* System control block commands */
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/* CU Commands */
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#define CU_NOP 0x0000
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#define CU_START 0x0010
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#define CU_RESUME 0x0020
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#define CU_STATSADDR 0x0040 /* Load Dump Statistics ctrs addr */
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#define CU_SHOWSTATS 0x0050 /* Dump statistics counters. */
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#define CU_ADDR_LOAD 0x0060 /* Base address to add to CU commands */
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#define CU_DUMPSTATS 0x0070 /* Dump then reset stats counters. */
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/* RUC Commands */
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#define RUC_NOP 0x0000
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#define RUC_START 0x0001
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#define RUC_RESUME 0x0002
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#define RUC_ABORT 0x0004
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#define RUC_ADDR_LOAD 0x0006 /* (seems not to clear on acceptance) */
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#define RUC_RESUMENR 0x0007
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#define CU_CMD_MASK 0x00f0
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#define RU_CMD_MASK 0x0007
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#define SCB_M 0x0100 /* 0 = enable interrupt, 1 = disable */
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#define SCB_SWI 0x0200 /* 1 - cause device to interrupt */
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#define CU_STATUS_MASK 0x00C0
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#define RU_STATUS_MASK 0x003C
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#define RU_STATUS_IDLE (0 << 2)
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#define RU_STATUS_SUS (1 << 2)
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#define RU_STATUS_NORES (2 << 2)
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#define RU_STATUS_READY (4 << 2)
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#define RU_STATUS_NO_RBDS_SUS ((1 << 2) | (8 << 2))
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#define RU_STATUS_NO_RBDS_NORES ((2 << 2) | (8 << 2))
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#define RU_STATUS_NO_RBDS_READY ((4 << 2) | (8 << 2))
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/* 82559 Port interface commands. */
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#define I82559_RESET 0x00000000 /* Software reset */
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#define I82559_SELFTEST 0x00000001 /* 82559 Selftest command */
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#define I82559_SELECTIVE_RESET 0x00000002
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#define I82559_DUMP 0x00000003
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#define I82559_DUMP_WAKEUP 0x00000007
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/* 82559 Eeprom interface. */
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#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */
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#define EE_CS 0x02 /* EEPROM chip select. */
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#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
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#define EE_WRITE_0 0x01
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#define EE_WRITE_1 0x05
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#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
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#define EE_ENB (0x4800 | EE_CS)
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#define EE_CMD_BITS 3
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#define EE_DATA_BITS 16
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/* The EEPROM commands include the alway-set leading bit. */
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#define EE_EWENB_CMD(addr_len) (4 << (addr_len))
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#define EE_WRITE_CMD(addr_len) (5 << (addr_len))
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#define EE_READ_CMD(addr_len) (6 << (addr_len))
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#define EE_ERASE_CMD(addr_len) (7 << (addr_len))
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/* Receive frame descriptors. */
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struct eepro100_rxfd {
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u16 status;
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u16 control;
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u32 link; /* struct eepro100_rxfd * */
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u32 rx_buf_addr; /* void * */
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u32 count;
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u8 data[PKTSIZE_ALIGN];
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};
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#define RFD_STATUS_C 0x8000 /* completion of received frame */
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#define RFD_STATUS_OK 0x2000 /* frame received with no errors */
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#define RFD_CONTROL_EL 0x8000 /* 1=last RFD in RFA */
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#define RFD_CONTROL_S 0x4000 /* 1=suspend RU after receiving frame */
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#define RFD_CONTROL_H 0x0010 /* 1=RFD is a header RFD */
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#define RFD_CONTROL_SF 0x0008 /* 0=simplified, 1=flexible mode */
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#define RFD_COUNT_MASK 0x3fff
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#define RFD_COUNT_F 0x4000
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#define RFD_COUNT_EOF 0x8000
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#define RFD_RX_CRC 0x0800 /* crc error */
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#define RFD_RX_ALIGNMENT 0x0400 /* alignment error */
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#define RFD_RX_RESOURCE 0x0200 /* out of space, no resources */
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#define RFD_RX_DMA_OVER 0x0100 /* DMA overrun */
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#define RFD_RX_SHORT 0x0080 /* short frame error */
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#define RFD_RX_LENGTH 0x0020
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#define RFD_RX_ERROR 0x0010 /* receive error */
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#define RFD_RX_NO_ADR_MATCH 0x0004 /* no address match */
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#define RFD_RX_IA_MATCH 0x0002 /* individual address does not match */
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#define RFD_RX_TCO 0x0001 /* TCO indication */
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/* Transmit frame descriptors */
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struct eepro100_txfd { /* Transmit frame descriptor set. */
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u16 status;
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u16 command;
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u32 link; /* void * */
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u32 tx_desc_addr; /* Always points to the tx_buf_addr element. */
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s32 count;
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u32 tx_buf_addr0; /* void *, frame to be transmitted. */
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s32 tx_buf_size0; /* Length of Tx frame. */
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u32 tx_buf_addr1; /* void *, frame to be transmitted. */
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s32 tx_buf_size1; /* Length of Tx frame. */
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};
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#define TXCB_CMD_TRANSMIT 0x0004 /* transmit command */
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#define TXCB_CMD_SF 0x0008 /* 0=simplified, 1=flexible mode */
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#define TXCB_CMD_NC 0x0010 /* 0=CRC insert by controller */
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#define TXCB_CMD_I 0x2000 /* generate interrupt on completion */
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#define TXCB_CMD_S 0x4000 /* suspend on completion */
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#define TXCB_CMD_EL 0x8000 /* last command block in CBL */
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#define TXCB_COUNT_MASK 0x3fff
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#define TXCB_COUNT_EOF 0x8000
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/* The Speedo3 Rx and Tx frame/buffer descriptors. */
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struct descriptor { /* A generic descriptor. */
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u16 status;
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u16 command;
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u32 link; /* struct descriptor * */
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unsigned char params[0];
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};
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#define CFG_SYS_CMD_SUSPEND 0x4000
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#define CFG_SYS_CMD_IAS 0x0001 /* individual address setup */
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#define CFG_SYS_CMD_CONFIGURE 0x0002 /* configure */
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#define CFG_SYS_STATUS_C 0x8000
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#define CFG_SYS_STATUS_OK 0x2000
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/* Misc. */
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#define NUM_RX_DESC PKTBUFSRX
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#define NUM_TX_DESC 1 /* Number of TX descriptors */
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#define TOUT_LOOP 1000000
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/*
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* The parameters for a CmdConfigure operation.
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* There are so many options that it would be difficult to document
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* each bit. We mostly use the default or recommended settings.
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*/
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static const char i82558_config_cmd[] = {
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22, 0x08, 0, 1, 0, 0, 0x22, 0x03, 1, /* 1=Use MII 0=Use AUI */
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0, 0x2E, 0, 0x60, 0x08, 0x88,
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0x68, 0, 0x40, 0xf2, 0x84, /* Disable FC */
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0x31, 0x05,
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};
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struct eepro100_priv {
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/* RX descriptor ring */
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struct eepro100_rxfd rx_ring[NUM_RX_DESC];
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/* TX descriptor ring */
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struct eepro100_txfd tx_ring[NUM_TX_DESC];
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/* RX descriptor ring pointer */
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int rx_next;
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u16 rx_stat;
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/* TX descriptor ring pointer */
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int tx_next;
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int tx_threshold;
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struct udevice *devno;
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char *name;
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void __iomem *iobase;
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u8 *enetaddr;
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};
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#define bus_to_phys(dev, a) dm_pci_mem_to_phys((dev), (a))
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#define phys_to_bus(dev, a) dm_pci_phys_to_mem((dev), (a))
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static int INW(struct eepro100_priv *priv, u_long addr)
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{
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return le16_to_cpu(readw(addr + priv->iobase));
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}
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static void OUTW(struct eepro100_priv *priv, int command, u_long addr)
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{
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writew(cpu_to_le16(command), addr + priv->iobase);
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}
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static void OUTL(struct eepro100_priv *priv, int command, u_long addr)
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{
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writel(cpu_to_le32(command), addr + priv->iobase);
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}
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#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
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static int INL(struct eepro100_priv *priv, u_long addr)
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{
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return le32_to_cpu(readl(addr + priv->iobase));
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}
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static int get_phyreg(struct eepro100_priv *priv, unsigned char addr,
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unsigned char reg, unsigned short *value)
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{
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int timeout = 50;
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int cmd;
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/* read requested data */
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cmd = (2 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
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OUTL(priv, cmd, SCB_CTRL_MDI);
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do {
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udelay(1000);
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cmd = INL(priv, SCB_CTRL_MDI);
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} while (!(cmd & (1 << 28)) && (--timeout));
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if (timeout == 0)
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return -1;
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*value = (unsigned short)(cmd & 0xffff);
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return 0;
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}
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static int set_phyreg(struct eepro100_priv *priv, unsigned char addr,
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unsigned char reg, unsigned short value)
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{
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int timeout = 50;
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int cmd;
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/* write requested data */
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cmd = (1 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
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OUTL(priv, cmd | value, SCB_CTRL_MDI);
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while (!(INL(priv, SCB_CTRL_MDI) & (1 << 28)) && (--timeout))
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udelay(1000);
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if (timeout == 0)
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return -1;
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return 0;
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}
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/*
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* Check if given phyaddr is valid, i.e. there is a PHY connected.
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* Do this by checking model value field from ID2 register.
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*/
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static int verify_phyaddr(struct eepro100_priv *priv, unsigned char addr)
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{
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unsigned short value, model;
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int ret;
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/* read id2 register */
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ret = get_phyreg(priv, addr, MII_PHYSID2, &value);
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if (ret) {
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printf("%s: mii read timeout!\n", priv->name);
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return ret;
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}
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/* get model */
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model = (value >> 4) & 0x003f;
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if (!model) {
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printf("%s: no PHY at address %d\n", priv->name, addr);
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return -EINVAL;
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}
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return 0;
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}
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static int eepro100_miiphy_read(struct mii_dev *bus, int addr, int devad,
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int reg)
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{
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struct eepro100_priv *priv = bus->priv;
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unsigned short value = 0;
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int ret;
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ret = verify_phyaddr(priv, addr);
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if (ret)
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return ret;
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ret = get_phyreg(priv, addr, reg, &value);
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if (ret) {
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printf("%s: mii read timeout!\n", bus->name);
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return ret;
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}
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return value;
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}
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static int eepro100_miiphy_write(struct mii_dev *bus, int addr, int devad,
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int reg, u16 value)
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{
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struct eepro100_priv *priv = bus->priv;
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int ret;
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ret = verify_phyaddr(priv, addr);
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if (ret)
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return ret;
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ret = set_phyreg(priv, addr, reg, value);
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if (ret) {
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printf("%s: mii write timeout!\n", bus->name);
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return ret;
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}
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return 0;
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}
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#endif
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static void init_rx_ring(struct eepro100_priv *priv)
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{
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struct eepro100_rxfd *rx_ring = priv->rx_ring;
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int i;
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for (i = 0; i < NUM_RX_DESC; i++) {
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rx_ring[i].status = 0;
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rx_ring[i].control = (i == NUM_RX_DESC - 1) ?
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cpu_to_le16 (RFD_CONTROL_S) : 0;
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rx_ring[i].link =
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cpu_to_le32(phys_to_bus(priv->devno,
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(u32)&rx_ring[(i + 1) %
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NUM_RX_DESC]));
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rx_ring[i].rx_buf_addr = 0xffffffff;
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rx_ring[i].count = cpu_to_le32(PKTSIZE_ALIGN << 16);
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}
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flush_dcache_range((unsigned long)rx_ring,
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(unsigned long)rx_ring +
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(sizeof(*rx_ring) * NUM_RX_DESC));
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priv->rx_next = 0;
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}
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static void purge_tx_ring(struct eepro100_priv *priv)
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{
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struct eepro100_txfd *tx_ring = priv->tx_ring;
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priv->tx_next = 0;
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priv->tx_threshold = 0x01208000;
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memset(tx_ring, 0, sizeof(*tx_ring) * NUM_TX_DESC);
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flush_dcache_range((unsigned long)tx_ring,
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(unsigned long)tx_ring +
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(sizeof(*tx_ring) * NUM_TX_DESC));
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}
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/* Wait for the chip get the command. */
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static int wait_for_eepro100(struct eepro100_priv *priv)
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{
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int i;
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for (i = 0; INW(priv, SCB_CMD) & (CU_CMD_MASK | RU_CMD_MASK); i++) {
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if (i >= TOUT_LOOP)
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return 0;
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}
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return 1;
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}
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static int eepro100_txcmd_send(struct eepro100_priv *priv,
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struct eepro100_txfd *desc)
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{
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u16 rstat;
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int i = 0;
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flush_dcache_range((unsigned long)desc,
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(unsigned long)desc + sizeof(*desc));
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if (!wait_for_eepro100(priv))
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return -ETIMEDOUT;
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OUTL(priv, phys_to_bus(priv->devno, (u32)desc), SCB_POINTER);
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OUTW(priv, SCB_M | CU_START, SCB_CMD);
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while (true) {
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invalidate_dcache_range((unsigned long)desc,
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(unsigned long)desc + sizeof(*desc));
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rstat = le16_to_cpu(desc->status);
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if (rstat & CFG_SYS_STATUS_C)
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break;
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if (i++ >= TOUT_LOOP) {
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printf("%s: Tx error buffer not ready\n", priv->name);
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return -EINVAL;
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}
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}
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invalidate_dcache_range((unsigned long)desc,
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(unsigned long)desc + sizeof(*desc));
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rstat = le16_to_cpu(desc->status);
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if (!(rstat & CFG_SYS_STATUS_OK)) {
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printf("TX error status = 0x%08X\n", rstat);
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return -EIO;
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}
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return 0;
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}
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/* SROM Read. */
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static int read_eeprom(struct eepro100_priv *priv, int location, int addr_len)
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{
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unsigned short retval = 0;
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int read_cmd = location | EE_READ_CMD(addr_len);
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int i;
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OUTW(priv, EE_ENB & ~EE_CS, SCB_EEPROM);
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OUTW(priv, EE_ENB, SCB_EEPROM);
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/* Shift the read command bits out. */
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for (i = 12; i >= 0; i--) {
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short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
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OUTW(priv, EE_ENB | dataval, SCB_EEPROM);
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udelay(1);
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OUTW(priv, EE_ENB | dataval | EE_SHIFT_CLK, SCB_EEPROM);
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udelay(1);
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}
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OUTW(priv, EE_ENB, SCB_EEPROM);
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for (i = 15; i >= 0; i--) {
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OUTW(priv, EE_ENB | EE_SHIFT_CLK, SCB_EEPROM);
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udelay(1);
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retval = (retval << 1) |
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!!(INW(priv, SCB_EEPROM) & EE_DATA_READ);
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OUTW(priv, EE_ENB, SCB_EEPROM);
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udelay(1);
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}
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/* Terminate the EEPROM access. */
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OUTW(priv, EE_ENB & ~EE_CS, SCB_EEPROM);
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return retval;
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}
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#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
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static int eepro100_initialize_mii(struct eepro100_priv *priv)
|
|
{
|
|
/* register mii command access routines */
|
|
struct mii_dev *mdiodev;
|
|
int ret;
|
|
|
|
mdiodev = mdio_alloc();
|
|
if (!mdiodev)
|
|
return -ENOMEM;
|
|
|
|
strlcpy(mdiodev->name, priv->name, MDIO_NAME_LEN);
|
|
mdiodev->read = eepro100_miiphy_read;
|
|
mdiodev->write = eepro100_miiphy_write;
|
|
mdiodev->priv = priv;
|
|
|
|
ret = mdio_register(mdiodev);
|
|
if (ret < 0) {
|
|
mdio_free(mdiodev);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static int eepro100_initialize_mii(struct eepro100_priv *priv)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static struct pci_device_id supported[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82557) },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559) },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559ER) },
|
|
{ }
|
|
};
|
|
|
|
static void eepro100_get_hwaddr(struct eepro100_priv *priv)
|
|
{
|
|
u16 sum = 0;
|
|
int i, j;
|
|
int addr_len = read_eeprom(priv, 0, 6) == 0xffff ? 8 : 6;
|
|
|
|
for (j = 0, i = 0; i < 0x40; i++) {
|
|
u16 value = read_eeprom(priv, i, addr_len);
|
|
|
|
sum += value;
|
|
if (i < 3) {
|
|
priv->enetaddr[j++] = value;
|
|
priv->enetaddr[j++] = value >> 8;
|
|
}
|
|
}
|
|
|
|
if (sum != 0xBABA) {
|
|
memset(priv->enetaddr, 0, ETH_ALEN);
|
|
debug("%s: Invalid EEPROM checksum %#4.4x, check settings before activating this device!\n",
|
|
priv->name, sum);
|
|
}
|
|
}
|
|
|
|
static int eepro100_init_common(struct eepro100_priv *priv)
|
|
{
|
|
struct eepro100_rxfd *rx_ring = priv->rx_ring;
|
|
struct eepro100_txfd *tx_ring = priv->tx_ring;
|
|
struct eepro100_txfd *ias_cmd, *cfg_cmd;
|
|
int ret, status = -1;
|
|
int tx_cur;
|
|
|
|
/* Reset the ethernet controller */
|
|
OUTL(priv, I82559_SELECTIVE_RESET, SCB_PORT);
|
|
udelay(20);
|
|
|
|
OUTL(priv, I82559_RESET, SCB_PORT);
|
|
udelay(20);
|
|
|
|
if (!wait_for_eepro100(priv)) {
|
|
printf("Error: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
OUTL(priv, 0, SCB_POINTER);
|
|
OUTW(priv, SCB_M | RUC_ADDR_LOAD, SCB_CMD);
|
|
|
|
if (!wait_for_eepro100(priv)) {
|
|
printf("Error: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
OUTL(priv, 0, SCB_POINTER);
|
|
OUTW(priv, SCB_M | CU_ADDR_LOAD, SCB_CMD);
|
|
|
|
/* Initialize Rx and Tx rings. */
|
|
init_rx_ring(priv);
|
|
purge_tx_ring(priv);
|
|
|
|
/* Tell the adapter where the RX ring is located. */
|
|
if (!wait_for_eepro100(priv)) {
|
|
printf("Error: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
|
|
/* RX ring cache was already flushed in init_rx_ring() */
|
|
OUTL(priv, phys_to_bus(priv->devno, (u32)&rx_ring[priv->rx_next]),
|
|
SCB_POINTER);
|
|
OUTW(priv, SCB_M | RUC_START, SCB_CMD);
|
|
|
|
/* Send the Configure frame */
|
|
tx_cur = priv->tx_next;
|
|
priv->tx_next = ((priv->tx_next + 1) % NUM_TX_DESC);
|
|
|
|
cfg_cmd = &tx_ring[tx_cur];
|
|
cfg_cmd->command = cpu_to_le16(CFG_SYS_CMD_SUSPEND |
|
|
CFG_SYS_CMD_CONFIGURE);
|
|
cfg_cmd->status = 0;
|
|
cfg_cmd->link = cpu_to_le32(phys_to_bus(priv->devno,
|
|
(u32)&tx_ring[priv->tx_next]));
|
|
|
|
memcpy(((struct descriptor *)cfg_cmd)->params, i82558_config_cmd,
|
|
sizeof(i82558_config_cmd));
|
|
|
|
ret = eepro100_txcmd_send(priv, cfg_cmd);
|
|
if (ret) {
|
|
if (ret == -ETIMEDOUT)
|
|
printf("Error---CFG_SYS_CMD_CONFIGURE: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
|
|
/* Send the Individual Address Setup frame */
|
|
tx_cur = priv->tx_next;
|
|
priv->tx_next = ((priv->tx_next + 1) % NUM_TX_DESC);
|
|
|
|
ias_cmd = &tx_ring[tx_cur];
|
|
ias_cmd->command = cpu_to_le16(CFG_SYS_CMD_SUSPEND |
|
|
CFG_SYS_CMD_IAS);
|
|
ias_cmd->status = 0;
|
|
ias_cmd->link = cpu_to_le32(phys_to_bus(priv->devno,
|
|
(u32)&tx_ring[priv->tx_next]));
|
|
|
|
memcpy(((struct descriptor *)ias_cmd)->params, priv->enetaddr, 6);
|
|
|
|
ret = eepro100_txcmd_send(priv, ias_cmd);
|
|
if (ret) {
|
|
if (ret == -ETIMEDOUT)
|
|
printf("Error: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
|
|
status = 0;
|
|
|
|
done:
|
|
return status;
|
|
}
|
|
|
|
static int eepro100_send_common(struct eepro100_priv *priv,
|
|
void *packet, int length)
|
|
{
|
|
struct eepro100_txfd *tx_ring = priv->tx_ring;
|
|
struct eepro100_txfd *desc;
|
|
int ret, status = -1;
|
|
int tx_cur;
|
|
|
|
if (length <= 0) {
|
|
printf("%s: bad packet size: %d\n", priv->name, length);
|
|
goto done;
|
|
}
|
|
|
|
tx_cur = priv->tx_next;
|
|
priv->tx_next = (priv->tx_next + 1) % NUM_TX_DESC;
|
|
|
|
desc = &tx_ring[tx_cur];
|
|
desc->command = cpu_to_le16(TXCB_CMD_TRANSMIT | TXCB_CMD_SF |
|
|
TXCB_CMD_S | TXCB_CMD_EL);
|
|
desc->status = 0;
|
|
desc->count = cpu_to_le32(priv->tx_threshold);
|
|
desc->link = cpu_to_le32(phys_to_bus(priv->devno,
|
|
(u32)&tx_ring[priv->tx_next]));
|
|
desc->tx_desc_addr = cpu_to_le32(phys_to_bus(priv->devno,
|
|
(u32)&desc->tx_buf_addr0));
|
|
desc->tx_buf_addr0 = cpu_to_le32(phys_to_bus(priv->devno,
|
|
(u_long)packet));
|
|
desc->tx_buf_size0 = cpu_to_le32(length);
|
|
|
|
ret = eepro100_txcmd_send(priv, &tx_ring[tx_cur]);
|
|
if (ret) {
|
|
if (ret == -ETIMEDOUT)
|
|
printf("%s: Tx error ethernet controller not ready.\n",
|
|
priv->name);
|
|
goto done;
|
|
}
|
|
|
|
status = length;
|
|
|
|
done:
|
|
return status;
|
|
}
|
|
|
|
static int eepro100_recv_common(struct eepro100_priv *priv, uchar **packetp)
|
|
{
|
|
struct eepro100_rxfd *rx_ring = priv->rx_ring;
|
|
struct eepro100_rxfd *desc;
|
|
int length;
|
|
u16 status;
|
|
|
|
priv->rx_stat = INW(priv, SCB_STATUS);
|
|
OUTW(priv, priv->rx_stat & SCB_STATUS_RNR, SCB_STATUS);
|
|
|
|
desc = &rx_ring[priv->rx_next];
|
|
invalidate_dcache_range((unsigned long)desc,
|
|
(unsigned long)desc + sizeof(*desc));
|
|
status = le16_to_cpu(desc->status);
|
|
|
|
if (!(status & RFD_STATUS_C))
|
|
return 0;
|
|
|
|
/* Valid frame status. */
|
|
if (status & RFD_STATUS_OK) {
|
|
/* A valid frame received. */
|
|
length = le32_to_cpu(desc->count) & 0x3fff;
|
|
/* Pass the packet up to the protocol layers. */
|
|
*packetp = desc->data;
|
|
return length;
|
|
}
|
|
|
|
/* There was an error. */
|
|
printf("RX error status = 0x%08X\n", status);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static void eepro100_free_pkt_common(struct eepro100_priv *priv)
|
|
{
|
|
struct eepro100_rxfd *rx_ring = priv->rx_ring;
|
|
struct eepro100_rxfd *desc;
|
|
int rx_prev;
|
|
|
|
desc = &rx_ring[priv->rx_next];
|
|
|
|
desc->control = cpu_to_le16(RFD_CONTROL_S);
|
|
desc->status = 0;
|
|
desc->count = cpu_to_le32(PKTSIZE_ALIGN << 16);
|
|
flush_dcache_range((unsigned long)desc,
|
|
(unsigned long)desc + sizeof(*desc));
|
|
|
|
rx_prev = (priv->rx_next + NUM_RX_DESC - 1) % NUM_RX_DESC;
|
|
desc = &rx_ring[rx_prev];
|
|
desc->control = 0;
|
|
flush_dcache_range((unsigned long)desc,
|
|
(unsigned long)desc + sizeof(*desc));
|
|
|
|
/* Update entry information. */
|
|
priv->rx_next = (priv->rx_next + 1) % NUM_RX_DESC;
|
|
|
|
if (!(priv->rx_stat & SCB_STATUS_RNR))
|
|
return;
|
|
|
|
printf("%s: Receiver is not ready, restart it !\n", priv->name);
|
|
|
|
/* Reinitialize Rx ring. */
|
|
init_rx_ring(priv);
|
|
|
|
if (!wait_for_eepro100(priv)) {
|
|
printf("Error: Can not restart ethernet controller.\n");
|
|
return;
|
|
}
|
|
|
|
/* RX ring cache was already flushed in init_rx_ring() */
|
|
OUTL(priv, phys_to_bus(priv->devno, (u32)&rx_ring[priv->rx_next]),
|
|
SCB_POINTER);
|
|
OUTW(priv, SCB_M | RUC_START, SCB_CMD);
|
|
}
|
|
|
|
static void eepro100_halt_common(struct eepro100_priv *priv)
|
|
{
|
|
/* Reset the ethernet controller */
|
|
OUTL(priv, I82559_SELECTIVE_RESET, SCB_PORT);
|
|
udelay(20);
|
|
|
|
OUTL(priv, I82559_RESET, SCB_PORT);
|
|
udelay(20);
|
|
|
|
if (!wait_for_eepro100(priv)) {
|
|
printf("Error: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
OUTL(priv, 0, SCB_POINTER);
|
|
OUTW(priv, SCB_M | RUC_ADDR_LOAD, SCB_CMD);
|
|
|
|
if (!wait_for_eepro100(priv)) {
|
|
printf("Error: Can not reset ethernet controller.\n");
|
|
goto done;
|
|
}
|
|
OUTL(priv, 0, SCB_POINTER);
|
|
OUTW(priv, SCB_M | CU_ADDR_LOAD, SCB_CMD);
|
|
|
|
done:
|
|
return;
|
|
}
|
|
|
|
static int eepro100_start(struct udevice *dev)
|
|
{
|
|
struct eth_pdata *plat = dev_get_plat(dev);
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
|
|
memcpy(priv->enetaddr, plat->enetaddr, sizeof(plat->enetaddr));
|
|
|
|
return eepro100_init_common(priv);
|
|
}
|
|
|
|
static void eepro100_stop(struct udevice *dev)
|
|
{
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
|
|
eepro100_halt_common(priv);
|
|
}
|
|
|
|
static int eepro100_send(struct udevice *dev, void *packet, int length)
|
|
{
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
ret = eepro100_send_common(priv, packet, length);
|
|
|
|
return ret ? 0 : -ETIMEDOUT;
|
|
}
|
|
|
|
static int eepro100_recv(struct udevice *dev, int flags, uchar **packetp)
|
|
{
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
|
|
return eepro100_recv_common(priv, packetp);
|
|
}
|
|
|
|
static int eepro100_free_pkt(struct udevice *dev, uchar *packet, int length)
|
|
{
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
|
|
eepro100_free_pkt_common(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int eepro100_read_rom_hwaddr(struct udevice *dev)
|
|
{
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
|
|
eepro100_get_hwaddr(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int eepro100_bind(struct udevice *dev)
|
|
{
|
|
static int card_number;
|
|
char name[16];
|
|
|
|
sprintf(name, "eepro100#%u", card_number++);
|
|
|
|
return device_set_name(dev, name);
|
|
}
|
|
|
|
static int eepro100_probe(struct udevice *dev)
|
|
{
|
|
struct eth_pdata *plat = dev_get_plat(dev);
|
|
struct eepro100_priv *priv = dev_get_priv(dev);
|
|
u16 command, status;
|
|
u32 iobase;
|
|
int ret;
|
|
|
|
dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
|
|
iobase &= ~0xf;
|
|
|
|
debug("eepro100: Intel i82559 PCI EtherExpressPro @0x%x\n", iobase);
|
|
|
|
priv->devno = dev;
|
|
priv->enetaddr = plat->enetaddr;
|
|
priv->iobase = (void __iomem *)bus_to_phys(dev, iobase);
|
|
|
|
command = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
|
|
dm_pci_write_config16(dev, PCI_COMMAND, command);
|
|
dm_pci_read_config16(dev, PCI_COMMAND, &status);
|
|
if ((status & command) != command) {
|
|
printf("eepro100: Couldn't enable IO access or Bus Mastering\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = eepro100_initialize_mii(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dm_pci_write_config8(dev, PCI_LATENCY_TIMER, 0x20);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct eth_ops eepro100_ops = {
|
|
.start = eepro100_start,
|
|
.send = eepro100_send,
|
|
.recv = eepro100_recv,
|
|
.stop = eepro100_stop,
|
|
.free_pkt = eepro100_free_pkt,
|
|
.read_rom_hwaddr = eepro100_read_rom_hwaddr,
|
|
};
|
|
|
|
U_BOOT_DRIVER(eth_eepro100) = {
|
|
.name = "eth_eepro100",
|
|
.id = UCLASS_ETH,
|
|
.bind = eepro100_bind,
|
|
.probe = eepro100_probe,
|
|
.ops = &eepro100_ops,
|
|
.priv_auto = sizeof(struct eepro100_priv),
|
|
.plat_auto = sizeof(struct eth_pdata),
|
|
};
|
|
|
|
U_BOOT_PCI_DEVICE(eth_eepro100, supported);
|