[J-u-boot.git] / arch / m68k / lib / fec.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) 2019 Angelo Dureghello <[email protected]>
 */

#include <common.h>
#include <asm/global_data.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
Commit	Line	Data
ad420937 AD	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* (C) 2019 Angelo Dureghello <[email protected]>
	4	*/
	5
	6	#include <common.h>
401d1c4f	7	#include <asm/global_data.h>
ad420937 AD	8	#include <linux/libfdt.h>
	9	#include <fdt_support.h>
	10
	11	DECLARE_GLOBAL_DATA_PTR;
	12
	13	#if defined(CONFIG_MCFFEC) \|\| defined(CONFIG_FSLDMAFEC)
	14	static int fec_get_node(int fec_idx)
	15	{
	16	char fec_alias[5] = {"fec"};
	17	const char *path;
	18	int node;
	19
	20	if (fec_idx > 1) {
	21	puts("Invalid MII base index");
	22	return -ENOENT;
	23	}
	24
	25	fec_alias[3] = fec_idx + '0';
	26
	27	path = fdt_get_alias(gd->fdt_blob, fec_alias);
	28	if (!path) {
	29	puts("Invalid MII path");
	30	return -ENOENT;
	31	}
	32
	33	node = fdt_path_offset(gd->fdt_blob, path);
	34	if (node < 0)
	35	return -ENOENT;
	36
	37	return node;
	38	}
	39
	40	int fec_get_fdt_prop(int fec_idx, const char prop, u32 value)
	41	{
	42	int node;
	43	const u32 *val;
	44
	45	node = fec_get_node(fec_idx);
	46	if (node < 0)
	47	return node;
	48
	49	val = fdt_getprop(gd->fdt_blob, node, prop, NULL);
	50	if (!val)
	51	return -ENOENT;
	52
	53	value = fdt32_to_cpu(val);
	54
	55	return 0;
	56	}
	57
	58	int fec_get_base_addr(int fec_idx, u32 *fec_iobase)
	59	{
	60	int node;
	61	fdt_size_t size;
	62	fdt_addr_t addr;
	63
	64	node = fec_get_node(fec_idx);
	65	if (node < 0)
	66	return node;
	67
	68	addr = fdtdec_get_addr_size(gd->fdt_blob, node, "reg", &size);
	69
	70	*fec_iobase = (u32)addr;
	71
72	return 0;
73	}
74
75	int fec_get_mii_base(int fec_idx, u32 *mii_base)
76	{
77	return fec_get_fdt_prop(fec_idx, "mii-base", mii_base);
78	}
79
80	#endif //CONFIG_MCFFEC \|\| CONFIG_FSLDMAFEC