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// SPDX-License-Identifier: GPL-2.0-only
#define pr_fmt(fmt) "rk3568-evb: " fmt
#include <common.h>
#include <init.h>
#include <mach/bbu.h>
#include <aiodev.h>
#include <bootsource.h>
#include <environment.h>
#include <globalvar.h>
#include <magicvar.h>
#include <deep-probe.h>
static bool machine_is_rk3568_evb = false;
static int rk3568_evb_probe(struct device_d *dev)
{
enum bootsource bootsource = bootsource_get();
int instance = bootsource_get_instance();
barebox_set_model("Rockchip RK3568 EVB");
barebox_set_hostname("rk3568-evb");
machine_is_rk3568_evb = true;
if (bootsource == BOOTSOURCE_MMC && instance == 1)
of_device_enable_path("/chosen/environment-sd");
else
of_device_enable_path("/chosen/environment-emmc");
rk3568_bbu_mmc_register("emmc", BBU_HANDLER_FLAG_DEFAULT, "/dev/emmc");
rk3568_bbu_mmc_register("sd", 0, "/dev/sd");
return 0;
}
static const struct of_device_id rk3568_evb_of_match[] = {
{ .compatible = "rockchip,rk3568-evb1-v10" },
{ /* Sentinel */},
};
static struct driver_d rk3568_evb_board_driver = {
.name = "board-rk3568-evb",
.probe = rk3568_evb_probe,
.of_compatible = rk3568_evb_of_match,
};
coredevice_platform_driver(rk3568_evb_board_driver);
BAREBOX_DEEP_PROBE_ENABLE(rk3568_evb_of_match);
static int rk3568_evb_detect_hwid(void)
{
int ret;
int evb_hwid_voltage;
struct aiochannel *evb_hwid_chan;
char *evb_hwid;
if (!IS_ENABLED(CONFIG_AIODEV))
return 0;
if (!machine_is_rk3568_evb)
return 0;
evb_hwid_chan = aiochannel_by_name("aiodev0.in_value1_mV");
if (IS_ERR(evb_hwid_chan)) {
ret = PTR_ERR(evb_hwid_chan);
goto err_hwid;
}
ret = aiochannel_get_value(evb_hwid_chan, &evb_hwid_voltage);
if (ret)
goto err_hwid;
if (evb_hwid_voltage > 1650) {
evb_hwid = "1";
} else if (evb_hwid_voltage > 1350) {
evb_hwid = "2";
} else if (evb_hwid_voltage > 1050) {
evb_hwid = "3";
} else if (evb_hwid_voltage > 750) {
evb_hwid = "4";
} else if (evb_hwid_voltage > 450) {
evb_hwid = "5";
} else if (evb_hwid_voltage > 150) {
evb_hwid = "6";
} else {
evb_hwid = "7";
}
pr_info("Detected RK3568 EVB%s\n", evb_hwid);
globalvar_add_simple("board.hwid", evb_hwid);
return 0;
err_hwid:
pr_err("couldn't retrieve hardware ID");
return ret;
}
late_initcall(rk3568_evb_detect_hwid);
BAREBOX_MAGICVAR(global.board.hwid, "The board hardware ID");
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