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https://github.com/AsahiLinux/u-boot
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62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* (C) Copyright 2007
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* Stefano Babic, DENX Software Engineering, sbabic@denx.de.
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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 <dm9000.h>
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static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
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unsigned int i;
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u8 data[2];
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for (i=0; i < 0x40; i++) {
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if (!(i % 0x10))
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printf("\n%08x:", i);
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dm9000_read_srom_word(i, data);
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printf(" %02x%02x", data[1], data[0]);
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}
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printf ("\n");
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return (0);
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}
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static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
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int offset,value;
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if (argc < 4)
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return cmd_usage(cmdtp);
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offset=simple_strtoul(argv[2],NULL,16);
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value=simple_strtoul(argv[3],NULL,16);
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if (offset > 0x40) {
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printf("Wrong offset : 0x%x\n",offset);
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return cmd_usage(cmdtp);
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}
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dm9000_write_srom_word(offset, value);
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return (0);
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}
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int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
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if (argc < 2)
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return cmd_usage(cmdtp);
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if (strcmp (argv[1],"read") == 0)
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return (do_read_dm9000_eeprom(cmdtp,flag,argc,argv));
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else if (strcmp (argv[1],"write") == 0)
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return (do_write_dm9000_eeprom(cmdtp,flag,argc,argv));
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else
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return cmd_usage(cmdtp);
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}
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U_BOOT_CMD(
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dm9000ee,4,1,do_dm9000_eeprom,
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"Read/Write eeprom connected to Ethernet Controller",
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"\ndm9000ee write <word offset> <value> \n"
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"\tdm9000ee read \n"
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"\tword:\t\t00-02 : MAC Address\n"
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"\t\t\t03-07 : DM9000 Configuration\n"
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"\t\t\t08-63 : User data"
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);
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