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/*
* (C) Copyright 2020 Hardkernel Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <adc.h>
#define check_range(min,max,val) (val > 0 && val > min && val < max ? 1 : 0)
int do_hwrev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned int hwrev_adc;
if (adc_channel_single_shot("saradc", 0, &hwrev_adc)) {
printf("board hw rev failed\n");
return CMD_RET_FAILURE;
}
/* rev 1.1 */
if (check_range(898, 978, hwrev_adc)) {
env_set("hwrev", "v11");
env_set("dtb_name", "rk3326-odroidgo2-linux-v11.dtb");
}
/* rev 1.0 */
else if (check_range(816, 896, hwrev_adc)) {
env_set("hwrev", "v10");
env_set("dtb_name", "rk3326-odroidgo2-linux.dtb");
}
/* engineer samples */
else {
env_set("hwrev", "v00");
env_set("dtb_name", "rk3326-odroidgo2-linux.dtb");
}
debug("adc0 (hw rev) %d\n", hwrev_adc);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
hwrev, 1, 1, do_hwrev,
"check hw revision of OGA",
""
);
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