qemu/roms/u-boot/board/mpl/vcma9/cmd_vcma9.c

   1 /*
   2  * (C) Copyright 2002
   3  * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
   4  *
   5  * adapted for VCMA9
   6  * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #include <common.h>
  12 #include <command.h>
  13 #include <net.h>
  14 #include "vcma9.h"
  15 #include "../common/common_util.h"
  16
  17 #if defined(CONFIG_CS8900)
  18 #include <../drivers/net/cs8900.h>
  19
  20 static uchar cs8900_chksum(ushort data)
  21 {
  22         return((data >> 8) & 0x00FF) + (data & 0x00FF);
  23 }
  24
  25 #endif
  26
  27 DECLARE_GLOBAL_DATA_PTR;
  28
  29 /* ------------------------------------------------------------------------- */
  30
  31 int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  32 {
  33         struct eth_device *dev;
  34         char cs8900_name[10];
  35         if (strcmp(argv[1], "info") == 0)
  36         {
  37                 vcma9_print_info();
  38                 return 0;
  39         }
  40 #if defined(CONFIG_CS8900)
  41         if (strcmp(argv[1], "cs8900") == 0) {
  42                 sprintf(cs8900_name, "%s-0", CS8900_DRIVERNAME);
  43                 dev = eth_get_dev_by_name(cs8900_name);
  44                 if (!dev) {
  45                         printf("Couldn't find CS8900 driver");
  46                         return 0;
  47                 }
  48                 if (strcmp(argv[2], "read") == 0) {
  49                         uchar addr; ushort data;
  50
  51                         addr = simple_strtoul(argv[3], NULL, 16);
  52                         cs8900_e2prom_read(dev, addr, &data);
  53                         printf("0x%2.2X: 0x%4.4X\n", addr, data);
  54                 } else if (strcmp(argv[2], "write") == 0) {
  55                         uchar addr; ushort data;
  56
  57                         addr = simple_strtoul(argv[3], NULL, 16);
  58                         data = simple_strtoul(argv[4], NULL, 16);
  59                         cs8900_e2prom_write(dev, addr, data);
  60                 } else if (strcmp(argv[2], "setaddr") == 0) {
  61                         uchar addr, i, csum; ushort data;
  62                         uchar ethaddr[6];
  63
  64                         /* check for valid ethaddr */
  65                         if (eth_getenv_enetaddr("ethaddr", ethaddr)) {
  66                                 addr = 1;
  67                                 data = 0x2158;
  68                                 cs8900_e2prom_write(dev, addr, data);
  69                                 csum = cs8900_chksum(data);
  70                                 addr++;
  71                                 for (i = 0; i < 6; i+=2) {
  72                                         data = ethaddr[i+1] << 8 |
  73                                                ethaddr[i];
  74                                         cs8900_e2prom_write(dev, addr, data);
  75                                         csum += cs8900_chksum(data);
  76                                         addr++;
  77                                 }
  78                                 /* calculate header link byte */
  79                                 data = 0xA100 | (addr * 2);
  80                                 cs8900_e2prom_write(dev, 0, data);
  81                                 csum += cs8900_chksum(data);
  82                                 /* write checksum word */
  83                                 cs8900_e2prom_write(dev, addr, (0 - csum) << 8);
  84                         } else {
  85                                 puts("\nplease defined 'ethaddr'\n");
  86                         }
  87                 } else if (strcmp(argv[2], "dump") == 0) {
  88                         uchar addr = 0, endaddr, csum; ushort data;
  89
  90                         puts("Dump of CS8900 config device: ");
  91                         cs8900_e2prom_read(dev, addr, &data);
  92                         if ((data & 0xE000) == 0xA000) {
  93                                 endaddr = (data & 0x00FF) / 2;
  94                                 csum = cs8900_chksum(data);
  95                                 for (addr = 1; addr <= endaddr; addr++) {
  96                                         cs8900_e2prom_read(dev, addr, &data);
  97                                         printf("\n0x%2.2X: 0x%4.4X", addr, data);
  98                                         csum += cs8900_chksum(data);
  99                                 }
 100                                 printf("\nChecksum: %s", (csum == 0) ? "ok" : "wrong");
 101                         } else {
 102                                 puts("no valid config found");
 103                         }
 104                         puts("\n");
 105                 }
 106
 107                 return 0;
 108         }
 109 #endif
 110
 111         return (do_mplcommon(cmdtp, flag, argc, argv));
 112 }
 113
 114 U_BOOT_CMD(
 115         vcma9, 6, 1, do_vcma9,
 116         "VCMA9 specific commands",
 117         "flash mem [SrcAddr] - updates U-Boot with image in memory\n"
 118         "vcma9 info                - displays board information"
 119 );