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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Marvell International Ltd.
*
* https://spdx.org/licenses
*/
#include <errno.h>
#include <fdtdec.h>
#include <fdt_support.h>
#include <log.h>
#include <linux/compiler.h>
#include <linux/libfdt.h>
#include <asm/arch/board.h>
#include <asm/arch/smc.h>
#include <asm/global_data.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
static int fdt_get_bdk_node(void)
{
int node, ret;
const void *fdt = gd->fdt_blob;
if (!fdt) {
printf("ERROR: %s: no valid device tree found\n", __func__);
return 0;
}
ret = fdt_check_header(fdt);
if (ret < 0) {
printf("fdt: %s\n", fdt_strerror(ret));
return 0;
}
node = fdt_path_offset(fdt, "/cavium,bdk");
if (node < 0) {
printf("%s: /cavium,bdk is missing from device tree: %s\n",
__func__, fdt_strerror(node));
return 0;
}
return node;
}
u64 fdt_get_board_mac_addr(void)
{
int node, len = 16;
const char *str = NULL;
const void *fdt = gd->fdt_blob;
u64 mac_addr = 0;
node = fdt_get_bdk_node();
if (!node)
return mac_addr;
str = fdt_getprop(fdt, node, "BOARD-MAC-ADDRESS", &len);
if (str)
mac_addr = simple_strtol(str, NULL, 16);
return mac_addr;
}
int fdt_get_board_mac_cnt(void)
{
int node, len = 16;
const char *str = NULL;
const void *fdt = gd->fdt_blob;
int mac_count = 0;
node = fdt_get_bdk_node();
if (!node)
return mac_count;
str = fdt_getprop(fdt, node, "BOARD-MAC-ADDRESS-NUM", &len);
if (str) {
mac_count = simple_strtol(str, NULL, 10);
if (!mac_count)
mac_count = simple_strtol(str, NULL, 16);
debug("fdt: MAC_NUM %d\n", mac_count);
} else {
printf("Error: cannot retrieve mac count prop from fdt\n");
}
str = fdt_getprop(gd->fdt_blob, node, "BOARD-MAC-ADDRESS-NUM-OVERRIDE",
&len);
if (str) {
if (simple_strtol(str, NULL, 10) >= 0)
mac_count = simple_strtol(str, NULL, 10);
debug("fdt: MAC_NUM %d\n", mac_count);
} else {
printf("Error: cannot retrieve mac num override prop\n");
}
return mac_count;
}
const char *fdt_get_board_serial(void)
{
const void *fdt = gd->fdt_blob;
int node, len = 64;
const char *str = NULL;
node = fdt_get_bdk_node();
if (!node)
return NULL;
str = fdt_getprop(fdt, node, "BOARD-SERIAL", &len);
if (!str)
printf("Error: cannot retrieve board serial from fdt\n");
return str;
}
const char *fdt_get_board_revision(void)
{
const void *fdt = gd->fdt_blob;
int node, len = 64;
const char *str = NULL;
node = fdt_get_bdk_node();
if (!node)
return NULL;
str = fdt_getprop(fdt, node, "BOARD-REVISION", &len);
if (!str)
printf("Error: cannot retrieve board revision from fdt\n");
return str;
}
const char *fdt_get_board_model(void)
{
int node, len = 16;
const char *str = NULL;
const void *fdt = gd->fdt_blob;
node = fdt_get_bdk_node();
if (!node)
return NULL;
str = fdt_getprop(fdt, node, "BOARD-MODEL", &len);
if (!str)
printf("Error: cannot retrieve board model from fdt\n");
return str;
}
int arch_fixup_memory_node(void *blob)
{
return 0;
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
int nodeoff, node, ret, i;
const char *temp;
static const char * const
octeontx_brd_nodes[] = {"BOARD-MODEL",
"BOARD-SERIAL",
"BOARD-MAC-ADDRESS",
"BOARD-REVISION",
"BOARD-MAC-ADDRESS-NUM"
};
char nodes[ARRAY_SIZE(octeontx_brd_nodes)][32];
ret = fdt_check_header(blob);
if (ret < 0) {
printf("ERROR: %s\n", fdt_strerror(ret));
return ret;
}
if (blob) {
nodeoff = fdt_path_offset(blob, "/cavium,bdk");
if (nodeoff < 0) {
printf("ERROR: FDT BDK node not found\n");
return nodeoff;
}
/* Read properties in temporary variables */
for (i = 0; i < ARRAY_SIZE(octeontx_brd_nodes); i++) {
temp = fdt_getprop(blob, nodeoff,
octeontx_brd_nodes[i], NULL);
strncpy(nodes[i], temp, sizeof(nodes[i]));
}
/* Delete cavium,bdk node */
ret = fdt_del_node(blob, nodeoff);
if (ret < 0) {
printf("WARNING : could not remove cavium, bdk node\n");
return ret;
}
debug("%s deleted 'cavium,bdk' node\n", __func__);
/*
* Add a new node at root level which would have
* necessary info
*/
node = fdt_add_subnode(blob, 0, "octeontx_brd");
if (node < 0) {
printf("Cannot create node octeontx_brd: %s\n",
fdt_strerror(node));
return -EIO;
}
/* Populate properties in node */
for (i = 0; i < ARRAY_SIZE(octeontx_brd_nodes); i++) {
if (fdt_setprop_string(blob, node,
octeontx_brd_nodes[i],
nodes[i])) {
printf("Can't set %s\n", nodes[i]);
return -EIO;
}
}
}
return 0;
}
/**
* Return the FDT base address that was passed by ATF
*
* Return: FDT base address received from ATF in x1 register
*/
void *board_fdt_blob_setup(int *err)
{
*err = 0;
return (void *)fdt_base_addr;
}
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