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/*
* Copyright 2011 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <libfdt.h>
#include <libfdt_env.h>
#include <fdt_support.h>
#include <fm_eth.h>
#include <asm/fsl_serdes.h>
/*
* Given the following ...
*
* 1) A pointer to an Fman Ethernet node (as identified by the 'compat'
* compatible string and 'addr' physical address)
*
* 2) The name of an alias that points to the ethernet-phy node (usually inside
* a virtual MDIO node)
*
* ... update that Ethernet node's phy-handle property to point to the
* ethernet-phy node. This is how we link an Ethernet node to its PHY, so each
* PHY in a virtual MDIO node must have an alias.
*
* Returns 0 on success, or a negative FDT error code on error.
*/
int fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr,
const char *alias)
{
int offset;
unsigned int ph;
const char *path;
/* Get a path to the node that 'alias' points to */
path = fdt_get_alias(fdt, alias);
if (!path)
return -FDT_ERR_BADPATH;
/* Get the offset of that node */
offset = fdt_path_offset(fdt, path);
if (offset < 0)
return offset;
ph = fdt_create_phandle(fdt, offset);
if (!ph)
return -FDT_ERR_BADPHANDLE;
offset = fdt_node_offset_by_compat_reg(fdt, compat, addr);
if (offset < 0)
return offset;
return fdt_setprop(fdt, offset, "phy-handle", &ph, sizeof(ph));
}
/*
* Return the SerDes device enum for a given Fman port
*
* This function just maps the fm_port namespace to the srds_prtcl namespace.
*/
enum srds_prtcl serdes_device_from_fm_port(enum fm_port port)
{
static const enum srds_prtcl srds_table[] = {
[FM1_DTSEC1] = SGMII_FM1_DTSEC1,
[FM1_DTSEC2] = SGMII_FM1_DTSEC2,
[FM1_DTSEC3] = SGMII_FM1_DTSEC3,
[FM1_DTSEC4] = SGMII_FM1_DTSEC4,
[FM1_DTSEC5] = SGMII_FM1_DTSEC5,
[FM1_10GEC1] = XAUI_FM1,
[FM2_DTSEC1] = SGMII_FM2_DTSEC1,
[FM2_DTSEC2] = SGMII_FM2_DTSEC2,
[FM2_DTSEC3] = SGMII_FM2_DTSEC3,
[FM2_DTSEC4] = SGMII_FM2_DTSEC4,
[FM2_DTSEC5] = SGMII_FM2_DTSEC5,
[FM2_10GEC1] = XAUI_FM2,
};
if ((port < FM1_DTSEC1) || (port > FM2_10GEC1))
return NONE;
else
return srds_table[port];
}
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