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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) 2019 Angelo Dureghello <angelo.dureghello@timesys.com>
*/
#include <asm/global_data.h>
#include <linux/errno.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_MCFFEC) || defined(CONFIG_FSLDMAFEC)
static int fec_get_node(int fec_idx)
{
char fec_alias[5] = {"fec"};
const char *path;
int node;
if (fec_idx > 1) {
puts("Invalid MII base index");
return -ENOENT;
}
fec_alias[3] = fec_idx + '0';
path = fdt_get_alias(gd->fdt_blob, fec_alias);
if (!path) {
puts("Invalid MII path");
return -ENOENT;
}
node = fdt_path_offset(gd->fdt_blob, path);
if (node < 0)
return -ENOENT;
return node;
}
int fec_get_fdt_prop(int fec_idx, const char *prop, u32 *value)
{
int node;
const u32 *val;
node = fec_get_node(fec_idx);
if (node < 0)
return node;
val = fdt_getprop(gd->fdt_blob, node, prop, NULL);
if (!val)
return -ENOENT;
*value = fdt32_to_cpu(*val);
return 0;
}
int fec_get_base_addr(int fec_idx, u32 *fec_iobase)
{
int node;
fdt_size_t size;
fdt_addr_t addr;
node = fec_get_node(fec_idx);
if (node < 0)
return node;
addr = fdtdec_get_addr_size(gd->fdt_blob, node, "reg", &size);
*fec_iobase = (u32)addr;
return 0;
}
int fec_get_mii_base(int fec_idx, u32 *mii_base)
{
return fec_get_fdt_prop(fec_idx, "mii-base", mii_base);
}
#endif //CONFIG_MCFFEC || CONFIG_FSLDMAFEC
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