forked from rrcarlosr/Jetpack
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
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/*
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* (C) Copyright 2007
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* Stefan Roese, DENX Software Engineering, sr@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 <i2c.h>
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static u8 boot_267_nor[] = {
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0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00,
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0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00
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};
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static u8 boot_267_nand[] = {
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0xd0, 0x38, 0xc3, 0x50, 0x13, 0x88, 0x8e, 0x00,
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0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00
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};
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static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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u8 chip;
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u8 *buf;
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int cpu_freq;
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if (argc < 3)
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return cmd_usage(cmdtp);
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cpu_freq = simple_strtol(argv[1], NULL, 10);
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if (cpu_freq != 267) {
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printf("Unsupported cpu-frequency - only 267 supported\n");
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return 1;
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}
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/* use 0x50 as I2C EEPROM address for now */
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chip = 0x50;
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if ((strcmp(argv[2], "nor") != 0) &&
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(strcmp(argv[2], "nand") != 0)) {
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printf("Unsupported boot-device - only nor|nand support\n");
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return 1;
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}
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if (strcmp(argv[2], "nand") == 0) {
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switch (cpu_freq) {
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case 267:
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buf = boot_267_nand;
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break;
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default:
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break;
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}
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} else {
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switch (cpu_freq) {
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case 267:
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buf = boot_267_nor;
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break;
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default:
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break;
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}
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}
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if (i2c_write(chip, 0, 1, buf, 16) != 0)
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printf("Error writing to EEPROM at address 0x%x\n", chip);
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udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
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if (i2c_write(chip, 0x10, 1, buf+16, 4) != 0)
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printf("Error2 writing to EEPROM at address 0x%x\n", chip);
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printf("Done\n");
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printf("Please power-cycle the board for the changes to take effect\n");
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return 0;
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}
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U_BOOT_CMD(
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bootstrap, 3, 0, do_bootstrap,
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"program the I2C bootstrap EEPROM",
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"<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM"
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);
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