varisys: Remove dead code
The platforms this code was for have been removed, drop this support code as well. Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Tom Rini
parent
66cc5aebde
commit
d93d363cb7
@ -1,21 +0,0 @@
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# SPDX-License-Identifier: GPL-2.0+
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#
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# (C) Copyright 2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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MINIMAL=
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ifdef CONFIG_SPL_BUILD
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ifdef CONFIG_SPL_INIT_MINIMAL
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MINIMAL=y
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endif
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endif
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ifdef MINIMAL
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# necessary to create built-in.o
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obj- := __dummy__.o
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else
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ifndef CONFIG_SPL_BUILD
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obj-$(CONFIG_ID_EEPROM) += sys_eeprom.o
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endif
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endif
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@ -1,6 +0,0 @@
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/* EEPROM init functions for Cyrus */
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void init_eeprom(int bus_num, int addr, int addr_len);
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void mac_read_from_fixed_id(void);
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int mac_read_from_eeprom_common(void);
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@ -1,500 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Based on board/freescale/common/sys_eeprom.c
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* Copyright 2006, 2008-2009, 2011 Freescale Semiconductor
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*
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* This defines the API for storing board information in the
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* eeprom. It has been adapted from an earlier version of the
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* Freescale API, but has a number of key differences. Because
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* the two APIs are independent and may diverge further, the
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* Varisys version of the API is implemented separately here.
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*/
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#include <common.h>
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#include <command.h>
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#include <env.h>
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#include <i2c.h>
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#include <linux/ctype.h>
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#include <linux/delay.h>
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#include <u-boot/crc.h>
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#include "eeprom.h"
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#ifdef CONFIG_SYS_I2C_EEPROM_NXID_MAC
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#define MAX_NUM_PORTS CONFIG_SYS_I2C_EEPROM_NXID_MAC
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#else
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#define MAX_NUM_PORTS 8
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#endif
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#define NXID_VERSION 0
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/**
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* static eeprom: EEPROM layout for NXID formats
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*
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* See Freescale application note AN3638 for details.
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*/
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static struct __attribute__ ((__packed__)) eeprom {
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u8 id[4]; /* 0x00 - 0x03 EEPROM Tag 'NXID' */
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u8 sn[12]; /* 0x04 - 0x0F Serial Number */
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u8 errata[5]; /* 0x10 - 0x14 Errata Level */
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u8 date[6]; /* 0x15 - 0x1a Build Date */
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u8 res_0; /* 0x1b Reserved */
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u32 version; /* 0x1c - 0x1f NXID Version */
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u8 tempcal[8]; /* 0x20 - 0x27 Temperature Calibration Factors */
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u8 tempcalsys[2]; /* 0x28 - 0x29 System Temperature Calibration Factors */
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u8 tempcalflags; /* 0x2a Temperature Calibration Flags */
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u8 res_1[21]; /* 0x2b - 0x3f Reserved */
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u8 mac_count; /* 0x40 Number of MAC addresses */
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u8 mac_flag; /* 0x41 MAC table flags */
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u8 mac[MAX_NUM_PORTS][6]; /* 0x42 - x MAC addresses */
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u32 crc; /* x+1 CRC32 checksum */
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} e;
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/* Set to 1 if we've read EEPROM into memory */
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static int has_been_read;
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/* Is this a valid NXID EEPROM? */
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#define is_valid ((e.id[0] == 'N') || (e.id[1] == 'X') || \
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(e.id[2] == 'I') || (e.id[3] == 'D'))
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/** Fixed ID field in EEPROM */
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static unsigned char uid[16];
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static int eeprom_bus_num = -1;
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static int eeprom_addr;
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static int eeprom_addr_len;
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/**
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* This must be called before any eeprom access.
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*/
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void init_eeprom(int bus_num, int addr, int addr_len)
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{
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eeprom_bus_num = bus_num;
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eeprom_addr = addr;
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eeprom_addr_len = addr_len;
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}
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/**
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* show_eeprom - display the contents of the EEPROM
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*/
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void show_eeprom(void)
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{
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int i;
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unsigned int crc;
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/* EEPROM tag ID, either CCID or NXID */
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printf("ID: %c%c%c%c v%u\n", e.id[0], e.id[1], e.id[2], e.id[3],
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be32_to_cpu(e.version));
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/* Serial number */
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printf("SN: %s\n", e.sn);
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printf("UID: ");
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for (i = 0; i < 16; i++)
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printf("%02x", uid[i]);
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printf("\n");
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/* Errata level. */
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printf("Errata: %s\n", e.errata);
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/* Build date, BCD date values, as YYMMDDhhmmss */
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printf("Build date: 20%02x/%02x/%02x %02x:%02x:%02x %s\n",
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e.date[0], e.date[1], e.date[2],
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e.date[3] & 0x7F, e.date[4], e.date[5],
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e.date[3] & 0x80 ? "PM" : "");
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/* Show MAC addresses */
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for (i = 0; i < min(e.mac_count, (u8)MAX_NUM_PORTS); i++) {
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u8 *p = e.mac[i];
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printf("Eth%u: %02x:%02x:%02x:%02x:%02x:%02x\n", i,
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p[0], p[1], p[2], p[3], p[4], p[5]);
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}
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crc = crc32(0, (void *)&e, sizeof(e) - 4);
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if (crc == be32_to_cpu(e.crc))
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printf("CRC: %08x\n", be32_to_cpu(e.crc));
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else
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printf("CRC: %08x (should be %08x)\n",
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be32_to_cpu(e.crc), crc);
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#ifdef DEBUG
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printf("EEPROM dump: (0x%x bytes)\n", sizeof(e));
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for (i = 0; i < sizeof(e); i++) {
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if ((i % 16) == 0)
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printf("%02X: ", i);
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printf("%02X ", ((u8 *)&e)[i]);
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if (((i % 16) == 15) || (i == sizeof(e) - 1))
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printf("\n");
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}
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#endif
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}
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/**
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* read_eeprom - read the EEPROM into memory
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*/
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int read_eeprom(void)
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{
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int ret;
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unsigned int bus;
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if (eeprom_bus_num < 0) {
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printf("EEPROM not configured\n");
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return -1;
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}
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if (has_been_read)
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return 0;
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bus = i2c_get_bus_num();
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i2c_set_bus_num(eeprom_bus_num);
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ret = i2c_read(eeprom_addr, 0, eeprom_addr_len,
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(void *)&e, sizeof(e));
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/* Fixed address of ID field */
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i2c_read(0x5f, 0x80, 1, uid, 16);
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i2c_set_bus_num(bus);
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#ifdef DEBUG
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show_eeprom();
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#endif
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has_been_read = (ret == 0) ? 1 : 0;
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return ret;
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}
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/**
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* update_crc - update the CRC
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*
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* This function should be called after each update to the EEPROM structure,
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* to make sure the CRC is always correct.
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*/
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static void update_crc(void)
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{
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u32 crc, crc_offset = offsetof(struct eeprom, crc);
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crc = crc32(0, (void *)&e, crc_offset);
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e.crc = cpu_to_be32(crc);
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}
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/**
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* prog_eeprom - write the EEPROM from memory
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*/
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static int prog_eeprom(void)
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{
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int ret = 0;
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int i;
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void *p;
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unsigned int bus;
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if (eeprom_bus_num < 0) {
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printf("EEPROM not configured\n");
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return -1;
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}
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/* Set the reserved values to 0xFF */
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e.res_0 = 0xFF;
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memset(e.res_1, 0xFF, sizeof(e.res_1));
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update_crc();
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bus = i2c_get_bus_num();
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i2c_set_bus_num(eeprom_bus_num);
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/*
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* The AT24C02 datasheet says that data can only be written in page
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* mode, which means 8 bytes at a time, and it takes up to 5ms to
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* complete a given write.
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*/
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for (i = 0, p = &e; i < sizeof(e); i += 8, p += 8) {
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ret = i2c_write(eeprom_addr, i, eeprom_addr_len,
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p, min((int)(sizeof(e) - i), 8));
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if (ret)
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break;
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udelay(5000); /* 5ms write cycle timing */
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}
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if (!ret) {
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/* Verify the write by reading back the EEPROM and comparing */
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struct eeprom e2;
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ret = i2c_read(eeprom_addr, 0,
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eeprom_addr_len, (void *)&e2, sizeof(e2));
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if (!ret && memcmp(&e, &e2, sizeof(e)))
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ret = -1;
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}
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i2c_set_bus_num(bus);
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if (ret) {
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printf("Programming failed.\n");
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has_been_read = 0;
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return -1;
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}
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printf("Programming passed.\n");
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return 0;
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}
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/**
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* h2i - converts hex character into a number
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*
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* This function takes a hexadecimal character (e.g. '7' or 'C') and returns
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* the integer equivalent.
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*/
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static inline u8 h2i(char p)
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{
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if ((p >= '0') && (p <= '9'))
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return p - '0';
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if ((p >= 'A') && (p <= 'F'))
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return (p - 'A') + 10;
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if ((p >= 'a') && (p <= 'f'))
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return (p - 'a') + 10;
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return 0;
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}
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/**
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* set_date - stores the build date into the EEPROM
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*
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* This function takes a pointer to a string in the format "YYMMDDhhmmss"
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* (2-digit year, 2-digit month, etc), converts it to a 6-byte BCD string,
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* and stores it in the build date field of the EEPROM local copy.
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*/
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static void set_date(const char *string)
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{
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unsigned int i;
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if (strlen(string) != 12) {
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printf("Usage: mac date YYMMDDhhmmss\n");
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return;
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}
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for (i = 0; i < 6; i++)
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e.date[i] = h2i(string[2 * i]) << 4 | h2i(string[2 * i + 1]);
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update_crc();
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}
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/**
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* set_mac_address - stores a MAC address into the EEPROM
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*
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* This function takes a pointer to MAC address string
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* (i.e."XX:XX:XX:XX:XX:XX", where "XX" is a two-digit hex number) and
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* stores it in one of the MAC address fields of the EEPROM local copy.
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*/
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static void set_mac_address(unsigned int index, const char *string)
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{
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char *p = (char *)string;
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unsigned int i;
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if ((index >= MAX_NUM_PORTS) || !string) {
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printf("Usage: mac <n> XX:XX:XX:XX:XX:XX\n");
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return;
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}
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for (i = 0; *p && (i < 6); i++) {
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e.mac[index][i] = hextoul(p, &p);
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if (*p == ':')
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p++;
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}
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update_crc();
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}
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int do_mac(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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char cmd;
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if (argc == 1) {
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show_eeprom();
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return 0;
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}
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cmd = argv[1][0];
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if (cmd == 'r') {
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read_eeprom();
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return 0;
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}
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if (cmd == 'i') {
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memcpy(e.id, "NXID", sizeof(e.id));
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e.version = NXID_VERSION;
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update_crc();
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return 0;
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}
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if (!is_valid) {
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printf("Please read the EEPROM ('r') and/or set the ID ('i') first.\n");
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return 0;
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}
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if (argc == 2) {
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switch (cmd) {
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case 's': /* save */
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prog_eeprom();
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break;
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default:
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return cmd_usage(cmdtp);
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}
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return 0;
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}
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/* We know we have at least one parameter */
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switch (cmd) {
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case 'n': /* serial number */
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memset(e.sn, 0, sizeof(e.sn));
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strncpy((char *)e.sn, argv[2], sizeof(e.sn) - 1);
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update_crc();
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break;
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case 'e': /* errata */
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memset(e.errata, 0, 5);
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strncpy((char *)e.errata, argv[2], 4);
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update_crc();
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break;
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case 'd': /* date BCD format YYMMDDhhmmss */
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set_date(argv[2]);
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break;
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case 'p': /* MAC table size */
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e.mac_count = hextoul(argv[2], NULL);
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update_crc();
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break;
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case '0' ... '9': /* "mac 0" through "mac 22" */
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set_mac_address(dectoul(argv[1], NULL), argv[2]);
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break;
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case 'h': /* help */
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default:
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return cmd_usage(cmdtp);
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}
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return 0;
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}
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int mac_read_from_generic_eeprom(const char *envvar, int chip,
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int address, int mac_bus)
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{
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int ret;
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unsigned int bus;
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unsigned char mac[6];
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char ethaddr[18];
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bus = i2c_get_bus_num();
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i2c_set_bus_num(mac_bus);
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ret = i2c_read(chip, address, 1, mac, 6);
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i2c_set_bus_num(bus);
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if (!ret) {
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sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
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mac[0],
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mac[1],
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mac[2],
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mac[3],
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mac[4],
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mac[5]);
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printf("MAC: %s\n", ethaddr);
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env_set(envvar, ethaddr);
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}
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return ret;
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}
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void mac_read_from_fixed_id(void)
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{
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#ifdef CONFIG_SYS_I2C_MAC1_CHIP_ADDR
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mac_read_from_generic_eeprom("ethaddr", CONFIG_SYS_I2C_MAC1_CHIP_ADDR,
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CONFIG_SYS_I2C_MAC1_DATA_ADDR, CONFIG_SYS_I2C_MAC1_BUS);
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#endif
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#ifdef CONFIG_SYS_I2C_MAC2_CHIP_ADDR
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mac_read_from_generic_eeprom("eth1addr", CONFIG_SYS_I2C_MAC2_CHIP_ADDR,
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CONFIG_SYS_I2C_MAC2_DATA_ADDR, CONFIG_SYS_I2C_MAC2_BUS);
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#endif
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}
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/**
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* mac_read_from_eeprom - read the MAC addresses from EEPROM
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*
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* This function reads the MAC addresses from EEPROM and sets the
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* appropriate environment variables for each one read.
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*
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* The environment variables are only set if they haven't been set already.
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* This ensures that any user-saved variables are never overwritten.
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*
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* This function must be called after relocation.
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*
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* For NXID v1 EEPROMs, we support loading and up-converting the older NXID v0
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* format. In a v0 EEPROM, there are only eight MAC addresses and the CRC is
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* located at a different offset.
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*/
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int mac_read_from_eeprom_common(void)
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{
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unsigned int i;
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u32 crc, crc_offset = offsetof(struct eeprom, crc);
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u32 *crcp; /* Pointer to the CRC in the data read from the EEPROM */
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puts("EEPROM: ");
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if (read_eeprom()) {
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printf("Read failed.\n");
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return 0;
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}
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if (!is_valid) {
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printf("Invalid ID (%02x %02x %02x %02x)\n",
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e.id[0], e.id[1], e.id[2], e.id[3]);
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return 0;
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}
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crc = crc32(0, (void *)&e, crc_offset);
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crcp = (void *)&e + crc_offset;
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if (crc != be32_to_cpu(*crcp)) {
|
||||
printf("CRC mismatch (%08x != %08x)\n", crc,
|
||||
be32_to_cpu(e.crc));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* MAC address #9 in v1 occupies the same position as the CRC in v0.
|
||||
* Erase it so that it's not mistaken for a MAC address. We'll
|
||||
* update the CRC later.
|
||||
*/
|
||||
if (e.version == 0)
|
||||
memset(e.mac[8], 0xff, 6);
|
||||
|
||||
for (i = 0; i < min(e.mac_count, (u8)MAX_NUM_PORTS); i++) {
|
||||
if (memcmp(&e.mac[i], "\0\0\0\0\0\0", 6) &&
|
||||
memcmp(&e.mac[i], "\xFF\xFF\xFF\xFF\xFF\xFF", 6)) {
|
||||
char ethaddr[18];
|
||||
char enetvar[9];
|
||||
|
||||
sprintf(ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
|
||||
e.mac[i][0],
|
||||
e.mac[i][1],
|
||||
e.mac[i][2],
|
||||
e.mac[i][3],
|
||||
e.mac[i][4],
|
||||
e.mac[i][5]);
|
||||
sprintf(enetvar, i ? "eth%daddr" : "ethaddr", i);
|
||||
/* Only initialize environment variables that are blank
|
||||
* (i.e. have not yet been set)
|
||||
*/
|
||||
if (!env_get(enetvar))
|
||||
env_set(enetvar, ethaddr);
|
||||
}
|
||||
}
|
||||
|
||||
printf("%c%c%c%c v%u\n", e.id[0], e.id[1], e.id[2], e.id[3],
|
||||
be32_to_cpu(e.version));
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user