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add12cb688
This patch renames the board directory from board/freescale to board/nxp because NXP now provides Board Support Packages (BSPs) and tools for the former Freescale i.MX and other i.MX products. All relevant references have been updated accordingly. This change does not affect functionality. Signed-off-by: Alice Guo <alice.guo@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com>
89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2011-2015 Freescale Semiconductor, Inc.
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*/
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#include <linux/libfdt.h>
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#include <linux/libfdt_env.h>
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#include <fdt_support.h>
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#include <fm_eth.h>
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#ifdef CONFIG_FSL_LAYERSCAPE
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#include <asm/arch/fsl_serdes.h>
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#else
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#include <asm/fsl_serdes.h>
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#endif
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/*
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* Given the following ...
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*
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* 1) A pointer to an Fman Ethernet node (as identified by the 'compat'
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* compatible string and 'addr' physical address)
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*
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* 2) The name of an alias that points to the ethernet-phy node (usually inside
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* a virtual MDIO node)
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*
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* ... update that Ethernet node's phy-handle property to point to the
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* ethernet-phy node. This is how we link an Ethernet node to its PHY, so each
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* PHY in a virtual MDIO node must have an alias.
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*
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* Returns 0 on success, or a negative FDT error code on error.
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*/
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int fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr,
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const char *alias)
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{
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int offset;
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unsigned int ph;
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const char *path;
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/* Get a path to the node that 'alias' points to */
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path = fdt_get_alias(fdt, alias);
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if (!path)
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return -FDT_ERR_BADPATH;
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/* Get the offset of that node */
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offset = fdt_path_offset(fdt, path);
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if (offset < 0)
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return offset;
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ph = fdt_create_phandle(fdt, offset);
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if (!ph)
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return -FDT_ERR_BADPHANDLE;
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ph = cpu_to_fdt32(ph);
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offset = fdt_node_offset_by_compat_reg(fdt, compat, addr);
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if (offset < 0)
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return offset;
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return fdt_setprop(fdt, offset, "phy-handle", &ph, sizeof(ph));
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}
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/*
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* Return the SerDes device enum for a given Fman port
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*
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* This function just maps the fm_port namespace to the srds_prtcl namespace.
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*/
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enum srds_prtcl serdes_device_from_fm_port(enum fm_port port)
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{
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static const enum srds_prtcl srds_table[] = {
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[FM1_DTSEC1] = SGMII_FM1_DTSEC1,
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[FM1_DTSEC2] = SGMII_FM1_DTSEC2,
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[FM1_DTSEC3] = SGMII_FM1_DTSEC3,
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[FM1_DTSEC4] = SGMII_FM1_DTSEC4,
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[FM1_DTSEC5] = SGMII_FM1_DTSEC5,
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[FM1_10GEC1] = XAUI_FM1,
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[FM2_DTSEC1] = SGMII_FM2_DTSEC1,
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[FM2_DTSEC2] = SGMII_FM2_DTSEC2,
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[FM2_DTSEC3] = SGMII_FM2_DTSEC3,
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[FM2_DTSEC4] = SGMII_FM2_DTSEC4,
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[FM2_DTSEC5] = SGMII_FM2_DTSEC5,
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[FM2_10GEC1] = XAUI_FM2,
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};
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if ((port < FM1_DTSEC1) || (port > FM2_10GEC1))
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return NONE;
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else
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return srds_table[port];
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}
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