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// SPDX-License-Identifier: GPL-2.0
#include <bootsource.h>
#include <common.h>
#include <deep-probe.h>
#include <envfs.h>
#include <init.h>
#include <io.h>
#include <linux/nvmem-consumer.h>
#include <mach/imx/bbu.h>
#include <mach/imx/iomux-mx8mp.h>
#include <net.h>
struct debix_polyhex_machine_data {
void (*ethernet_setup)(void);
};
#define ETH_ALEN_ASCII 12
static int polyhex_debix_eth_register_ethaddr(struct device_node *np)
{
u8 mac[ETH_ALEN];
u8 *data;
int ret;
data = nvmem_cell_get_and_read(np, "mac-address", ETH_ALEN_ASCII);
if (IS_ERR(data))
return PTR_ERR(data);
ret = hex2bin(mac, data, ETH_ALEN);
if (ret)
goto err;
of_eth_register_ethaddr(np, mac);
err:
free(data);
return ret;
}
static void polyhex_debix_ethernet_init(void)
{
static const char * const aliases[] = { "ethernet0", "ethernet1" };
struct device_node *np, *root;
unsigned int i;
root = of_get_root_node();
for (i = 0; i < ARRAY_SIZE(aliases); i++) {
const char *alias = aliases[i];
int ret;
np = of_find_node_by_alias(root, alias);
if (!np) {
pr_warn("Failed to find %s\n", alias);
continue;
}
ret = polyhex_debix_eth_register_ethaddr(np);
if (ret) {
pr_warn("Failed to register MAC for %s\n", alias);
continue;
}
}
}
static int polyhex_debix_probe(struct device *dev)
{
const struct debix_polyhex_machine_data *machine_data;
int emmc_bbu_flag = 0;
int sd_bbu_flag = 0;
u32 val;
if (bootsource_get() == BOOTSOURCE_MMC && bootsource_get_instance() == 1) {
of_device_enable_path("/chosen/environment-sd");
sd_bbu_flag = BBU_HANDLER_FLAG_DEFAULT;
} else {
of_device_enable_path("/chosen/environment-emmc");
emmc_bbu_flag = BBU_HANDLER_FLAG_DEFAULT;
}
imx8m_bbu_internal_mmc_register_handler("SD", "/dev/mmc1.barebox", sd_bbu_flag);
imx8m_bbu_internal_mmcboot_register_handler("eMMC", "/dev/mmc2", emmc_bbu_flag);
/* Enable RGMII TX clk output */
val = readl(MX8MP_IOMUXC_GPR_BASE_ADDR + MX8MP_IOMUXC_GPR1);
val |= MX8MP_IOMUXC_GPR1_ENET1_RGMII_EN |
MX8MP_IOMUXC_GPR1_ENET_QOS_RGMII_EN;
writel(val, MX8MP_IOMUXC_GPR_BASE_ADDR + MX8MP_IOMUXC_GPR1);
machine_data = device_get_match_data(dev);
if (machine_data && machine_data->ethernet_setup)
machine_data->ethernet_setup();
return 0;
}
static const struct debix_polyhex_machine_data debix_som_a_bmb_08 = {
.ethernet_setup = polyhex_debix_ethernet_init,
};
static const struct of_device_id polyhex_debix_of_match[] = {
{ .compatible = "polyhex,imx8mp-debix" },
{ .compatible = "polyhex,imx8mp-debix-som-a-bmb-08", .data = &debix_som_a_bmb_08 },
{ /* Sentinel */ }
};
BAREBOX_DEEP_PROBE_ENABLE(polyhex_debix_of_match);
static struct driver polyhex_debix_board_driver = {
.name = "board-imx8mp-debix",
.probe = polyhex_debix_probe,
.of_compatible = polyhex_debix_of_match,
};
coredevice_platform_driver(polyhex_debix_board_driver);
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