u-boot/board/freescale/t208xrdb/eth_t208xrdb.c
Camelia Groza 4e21a555c1 board: freescale: t208xrdb: add Linux fdt fix-ups for rev D
The T2080RDB boards revisions D and up have updated 10G Aquantia PHYs
connected to MAC1 and MAC2. The second Aquantia PHY is located at a
different address on the MDIO bus compared to rev C (0x8 instead of 0x1).

Fix-up the Linux device tree to update the PHY address for the second
Aquantia PHY on boards revisions D and up. Also rename the PHY node to
reflect the changes.

Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-06-17 11:46:11 +05:30

101 lines
2.4 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014 Freescale Semiconductor, Inc.
* Copyright 2021 NXP
*
* Shengzhou Liu <Shengzhou.Liu@freescale.com>
*/
#include <common.h>
#include <command.h>
#include <fdt_support.h>
#include <net.h>
#include <netdev.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_law.h>
#include <asm/fsl_serdes.h>
#include <asm/fsl_portals.h>
#include <asm/fsl_liodn.h>
#include <malloc.h>
#include <fm_eth.h>
#include <fsl_mdio.h>
#include <miiphy.h>
#include <phy.h>
#include <fsl_dtsec.h>
#include <asm/fsl_serdes.h>
extern u8 get_hw_revision(void);
/* Disable the MAC5 and MAC6 "fsl,fman-memac" nodes and the two
* "fsl,dpa-ethernet" nodes that reference them.
*/
void fdt_fixup_board_fman_ethernet(void *fdt)
{
int mac_off, eth_off, i;
char mac_path[2][42] = {
"/soc@ffe000000/fman@400000/ethernet@e8000",
"/soc@ffe000000/fman@400000/ethernet@ea000",
};
u32 eth_ph;
for (i = 0; i < 2; i++) {
/* Disable the MAC node */
mac_off = fdt_path_offset(fdt, mac_path[i]);
if (mac_off < 0)
continue;
fdt_status_disabled(fdt, mac_off);
/* Disable the fsl,dpa-ethernet node that points to the MAC.
* The fsl,fman-mac property refers to the MAC's phandle.
*/
eth_ph = fdt_get_phandle(fdt, mac_off);
if (eth_ph <= 0)
continue;
eth_off = fdt_node_offset_by_prop_value(fdt, -1, "fsl,fman-mac",
&eth_ph,
sizeof(eth_ph));
if (eth_off >= 0)
fdt_status_disabled(fdt, eth_off);
}
}
/* Update the address of the second Aquantia PHY on boards revision D and up.
* Also rename the PHY node to align with the address change.
*/
void fdt_fixup_board_phy(void *fdt)
{
const char phy_path[] =
"/soc@ffe000000/fman@400000/mdio@fd000/ethernet-phy@1";
int ret, offset, new_addr = AQR113C_PHY_ADDR2;
char new_name[] = "ethernet-phy@00";
if (get_hw_revision() == 'C')
return;
offset = fdt_path_offset(fdt, phy_path);
if (offset < 0) {
printf("ethernet-phy@1 node not found in the dts\n");
return;
}
ret = fdt_setprop(fdt, offset, "reg", &new_addr, sizeof(new_addr));
if (ret < 0) {
printf("Unable to set 'reg' for node ethernet-phy@1: %s\n",
fdt_strerror(ret));
return;
}
sprintf(new_name, "ethernet-phy@%x", new_addr);
ret = fdt_set_name(fdt, offset, new_name);
if (ret < 0)
printf("Unable to rename node ethernet-phy@1: %s\n",
fdt_strerror(ret));
}
void fdt_fixup_board_enet(void *fdt)
{
return;
}