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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2019 Zodiac Inflight Innovation
#include <common.h>
#include <fs.h>
#include <globalvar.h>
#include <init.h>
#include <linux/nvmem-consumer.h>
#include <net.h>
#include <restart.h>
static int rdu_eth_register_ethaddr(struct device_node *np)
{
u8 mac[ETH_ALEN];
u8 *data;
int i;
data = nvmem_cell_get_and_read(np, "mac-address", ETH_ALEN);
if (IS_ERR(data))
return PTR_ERR(data);
/*
* EEPROM stores MAC address in reverse (to what we expect it
* to be) byte order.
*/
for (i = 0; i < ETH_ALEN; i++)
mac[i] = data[ETH_ALEN - i - 1];
free(data);
of_eth_register_ethaddr(np, mac);
return 0;
}
static int rdu_ethernet_init(void)
{
static const char * const aliases[] = { "ethernet0", "ethernet1" };
struct device_node *np, *root;
int i, ret;
if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") &&
!of_machine_is_compatible("zii,imx6qp-zii-rdu2") &&
!of_machine_is_compatible("zii,imx8mq-ultra"))
return 0;
root = of_get_root_node();
for (i = 0; i < ARRAY_SIZE(aliases); i++) {
const char *alias = aliases[i];
np = of_find_node_by_alias(root, alias);
if (!np) {
pr_warn("Failed to find %s\n", alias);
continue;
}
ret = rdu_eth_register_ethaddr(np);
if (ret) {
pr_warn("Failed to register MAC for %s\n", alias);
continue;
}
}
return 0;
}
late_initcall(rdu_ethernet_init);
static int rdu_networkconfig(void)
{
static char *rdu_netconfig;
struct device *sp_dev;
if (!of_machine_is_compatible("zii,imx8mq-ultra") &&
!of_machine_is_compatible("zii,imx6q-zii-rdu2") &&
!of_machine_is_compatible("zii,imx6qp-zii-rdu2") &&
!of_machine_is_compatible("zii,imx51-rdu1"))
return 0;
sp_dev = get_device_by_name("sp");
if (!sp_dev) {
pr_warn("no sp device found, network config not available!\n");
return -ENODEV;
}
rdu_netconfig = basprintf("ip=%s:::%s::eth0:",
dev_get_param(sp_dev, "ipaddr"),
dev_get_param(sp_dev, "netmask"));
globalvar_add_simple_string("linux.bootargs.rdu_network",
&rdu_netconfig);
return 0;
}
late_initcall(rdu_networkconfig);
#ifdef CONFIG_PCI_IMX6
#define I210_CFGWORD_PCIID_157B 0x157b1a11
static int rdu_i210_invm(void)
{
int fd;
u32 val;
if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") &&
!of_machine_is_compatible("zii,imx6qp-zii-rdu2") &&
!of_machine_is_compatible("zii,imx8mq-ultra"))
return 0;
fd = open("/dev/e1000-invm0", O_RDWR);
if (fd < 0) {
pr_err("could not open e1000 iNVM device!\n");
return fd;
}
pread(fd, &val, sizeof(val), 0);
if (val == I210_CFGWORD_PCIID_157B) {
pr_debug("i210 already programmed correctly\n");
return 0;
}
val = I210_CFGWORD_PCIID_157B;
pwrite(fd, &val, sizeof(val), 0);
shutdown_barebox();
restart_machine();
return 0;
}
late_initcall(rdu_i210_invm);
#endif
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