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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2010-2016, NVIDIA CORPORATION.
*/
#include <common.h>
#include <fdtdec.h>
#include <stdlib.h>
#include <asm/arch-tegra/cboot.h>
#include <asm/arch-tegra/gpu.h>
/*
* This function is called right before the kernel is booted. "blob" is the
* device tree that will be passed to the kernel.
*/
int ft_system_setup(void *blob, struct bd_info *bd)
{
const char *gpu_compats[] = {
#if defined(CONFIG_TEGRA124)
"nvidia,gk20a",
#endif
#if defined(CONFIG_TEGRA210)
"nvidia,gm20b",
#endif
};
int i, ret;
/* Enable GPU node if GPU setup has been performed */
for (i = 0; i < ARRAY_SIZE(gpu_compats); i++) {
ret = tegra_gpu_enable_node(blob, gpu_compats[i]);
if (ret)
return ret;
}
return 0;
}
#if defined(CONFIG_ARM64)
void ft_mac_address_setup(void *fdt)
{
const void *cboot_fdt = (const void *)cboot_boot_x0;
uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
const char *path;
int offset, err;
err = cboot_get_ethaddr(cboot_fdt, local_mac);
if (err < 0)
memset(local_mac, 0, ETH_ALEN);
path = fdt_get_alias(fdt, "ethernet");
if (!path)
return;
debug("ethernet alias found: %s\n", path);
offset = fdt_path_offset(fdt, path);
if (offset < 0) {
printf("ethernet alias points to absent node %s\n", path);
return;
}
if (is_valid_ethaddr(local_mac)) {
err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
ETH_ALEN);
if (!err)
debug("Local MAC address set: %pM\n", local_mac);
}
if (eth_env_get_enetaddr("ethaddr", mac)) {
if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
err = fdt_setprop(fdt, offset, "mac-address", mac,
ETH_ALEN);
if (!err)
debug("MAC address set: %pM\n", mac);
}
}
}
static int ft_copy_carveout(void *dst, const void *src, const char *node)
{
const char *names = "memory-region-names";
struct fdt_memory carveout;
unsigned int index = 0;
int err, offset, len;
const void *prop;
while (true) {
const char **compatibles = NULL;
unsigned int num_compatibles;
unsigned long flags;
char *copy = NULL;
const char *name;
err = fdtdec_get_carveout(src, node, "memory-region", index,
&carveout, &name, &compatibles,
&num_compatibles, &flags);
if (err < 0) {
if (err != -FDT_ERR_NOTFOUND)
printf("failed to get carveout for %s: %d\n",
node, err);
else
break;
return err;
}
if (name) {
const char *ptr = strchr(name, '@');
if (ptr) {
copy = strndup(name, ptr - name);
name = copy;
}
} else {
name = "carveout";
}
err = fdtdec_set_carveout(dst, node, "memory-region", index,
&carveout, name, compatibles,
num_compatibles, flags);
if (err < 0) {
printf("failed to set carveout for %s: %d\n", node,
err);
return err;
}
if (copy)
free(copy);
index++;
}
offset = fdt_path_offset(src, node);
if (offset < 0) {
debug("failed to find source offset for %s: %s\n", node,
fdt_strerror(err));
return err;
}
prop = fdt_getprop(src, offset, names, &len);
if (prop) {
offset = fdt_path_offset(dst, node);
if (offset < 0) {
debug("failed to find destination offset for %s: %s\n",
node, fdt_strerror(err));
return err;
}
err = fdt_setprop(dst, offset, "memory-region-names", prop,
len);
if (err < 0) {
debug("failed to copy \"%s\" property: %s\n", names,
fdt_strerror(err));
return err;
}
}
return 0;
}
void ft_carveout_setup(void *fdt, const char * const *nodes, unsigned int count)
{
const void *cboot_fdt = (const void *)cboot_boot_x0;
unsigned int i;
int err;
for (i = 0; i < count; i++) {
printf("copying carveout for %s...\n", nodes[i]);
err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
if (err < 0) {
if (err != -FDT_ERR_NOTFOUND)
printf("failed to copy carveout for %s: %d\n",
nodes[i], err);
continue;
}
}
}
#endif
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