120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/*
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* (C) Copyright 2002
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* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
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*
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* adapted for VCMA9
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* David Mueller, ELSOFT AG, d.mueller@elsoft.ch
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <command.h>
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#include <net.h>
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#include "vcma9.h"
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#include "../common/common_util.h"
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#if defined(CONFIG_CS8900)
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#include <../drivers/net/cs8900.h>
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static uchar cs8900_chksum(ushort data)
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{
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return((data >> 8) & 0x00FF) + (data & 0x00FF);
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}
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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/* ------------------------------------------------------------------------- */
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int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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struct eth_device *dev;
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char cs8900_name[10];
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if (strcmp(argv[1], "info") == 0)
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{
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vcma9_print_info();
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return 0;
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}
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#if defined(CONFIG_CS8900)
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if (strcmp(argv[1], "cs8900") == 0) {
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sprintf(cs8900_name, "%s-0", CS8900_DRIVERNAME);
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dev = eth_get_dev_by_name(cs8900_name);
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if (!dev) {
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printf("Couldn't find CS8900 driver");
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return 0;
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}
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if (strcmp(argv[2], "read") == 0) {
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uchar addr; ushort data;
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addr = simple_strtoul(argv[3], NULL, 16);
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cs8900_e2prom_read(dev, addr, &data);
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printf("0x%2.2X: 0x%4.4X\n", addr, data);
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} else if (strcmp(argv[2], "write") == 0) {
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uchar addr; ushort data;
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addr = simple_strtoul(argv[3], NULL, 16);
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data = simple_strtoul(argv[4], NULL, 16);
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cs8900_e2prom_write(dev, addr, data);
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} else if (strcmp(argv[2], "setaddr") == 0) {
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uchar addr, i, csum; ushort data;
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uchar ethaddr[6];
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/* check for valid ethaddr */
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if (eth_getenv_enetaddr("ethaddr", ethaddr)) {
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addr = 1;
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data = 0x2158;
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cs8900_e2prom_write(dev, addr, data);
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csum = cs8900_chksum(data);
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addr++;
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for (i = 0; i < 6; i+=2) {
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data = ethaddr[i+1] << 8 |
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ethaddr[i];
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cs8900_e2prom_write(dev, addr, data);
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csum += cs8900_chksum(data);
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addr++;
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}
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/* calculate header link byte */
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data = 0xA100 | (addr * 2);
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cs8900_e2prom_write(dev, 0, data);
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csum += cs8900_chksum(data);
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/* write checksum word */
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cs8900_e2prom_write(dev, addr, (0 - csum) << 8);
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} else {
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puts("\nplease defined 'ethaddr'\n");
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}
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} else if (strcmp(argv[2], "dump") == 0) {
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uchar addr = 0, endaddr, csum; ushort data;
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puts("Dump of CS8900 config device: ");
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cs8900_e2prom_read(dev, addr, &data);
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if ((data & 0xE000) == 0xA000) {
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endaddr = (data & 0x00FF) / 2;
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csum = cs8900_chksum(data);
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for (addr = 1; addr <= endaddr; addr++) {
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cs8900_e2prom_read(dev, addr, &data);
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printf("\n0x%2.2X: 0x%4.4X", addr, data);
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csum += cs8900_chksum(data);
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}
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printf("\nChecksum: %s", (csum == 0) ? "ok" : "wrong");
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} else {
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puts("no valid config found");
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}
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puts("\n");
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}
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return 0;
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}
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#endif
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return (do_mplcommon(cmdtp, flag, argc, argv));
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}
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U_BOOT_CMD(
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vcma9, 6, 1, do_vcma9,
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"VCMA9 specific commands",
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"flash mem [SrcAddr] - updates U-Boot with image in memory\n"
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"vcma9 info - displays board information"
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);
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