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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015, 2021 Tony Dinh <mibodhi@gmail.com>
* Copyright (C) 2015 Gerald Kerma <dreagle@doukki.net>
*/
#include <common.h>
#include <init.h>
#include <miiphy.h>
#include <net.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include <asm/arch/mpp.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include "nsa310s.h"
DECLARE_GLOBAL_DATA_PTR;
int board_early_init_f(void)
{
/*
* default gpio configuration
* There are maximum 64 gpios controlled through 2 sets of registers
* the below configuration configures mainly initial LED status
*/
mvebu_config_gpio(NSA310S_VAL_LOW, NSA310S_VAL_HIGH,
NSA310S_OE_LOW, NSA310S_OE_HIGH);
/* (all LEDs & power off active high) */
/* Multi-Purpose Pins Functionality configuration */
static const u32 kwmpp_config[] = {
MPP0_NF_IO2,
MPP1_NF_IO3,
MPP2_NF_IO4,
MPP3_NF_IO5,
MPP4_NF_IO6,
MPP5_NF_IO7,
MPP6_SYSRST_OUTn,
MPP7_GPO,
MPP8_TW_SDA,
MPP9_TW_SCK,
MPP10_UART0_TXD,
MPP11_UART0_RXD,
MPP12_GPO,
MPP13_GPIO,
MPP14_GPIO,
MPP15_GPIO,
MPP16_GPIO,
MPP17_GPIO,
MPP18_NF_IO0,
MPP19_NF_IO1,
MPP20_GPIO,
MPP21_GPIO,
MPP22_GPIO,
MPP23_GPIO,
MPP24_GPIO,
MPP25_GPIO,
MPP26_GPIO,
MPP27_GPIO,
MPP28_GPIO,
MPP29_GPIO,
MPP30_GPIO,
MPP31_GPIO,
MPP32_GPIO,
MPP33_GPIO,
MPP34_GPIO,
MPP35_GPIO,
0
};
kirkwood_mpp_conf(kwmpp_config, NULL);
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
return 0;
}
static int fdt_get_phy_addr(const char *path)
{
const void *fdt = gd->fdt_blob;
const u32 *reg;
const u32 *val;
int node, phandle, addr;
/* Find the node by its full path */
node = fdt_path_offset(fdt, path);
if (node >= 0) {
/* Look up phy-handle */
val = fdt_getprop(fdt, node, "phy-handle", NULL);
if (val) {
phandle = fdt32_to_cpu(*val);
if (!phandle)
return -1;
/* Follow it to its node */
node = fdt_node_offset_by_phandle(fdt, phandle);
if (node) {
/* Look up reg */
reg = fdt_getprop(fdt, node, "reg", NULL);
if (reg) {
addr = fdt32_to_cpu(*reg);
return addr;
}
}
}
}
return -1;
}
#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
u16 reg;
u16 phyaddr;
char *name = "ethernet-controller@72000";
char *eth0_path = "/ocp@f1000000/ethernet-controller@72000/ethernet0-port@0";
if (miiphy_set_current_dev(name))
return;
phyaddr = fdt_get_phy_addr(eth0_path);
if (phyaddr < 0)
return;
/* set RGMII delay */
miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, MV88E1318_MAC_CTRL_PG);
miiphy_read(name, phyaddr, MV88E1318_MAC_CTRL_REG, ®);
reg |= (MV88E1318_RGMII_RX_CTRL | MV88E1318_RGMII_TX_CTRL);
miiphy_write(name, phyaddr, MV88E1318_MAC_CTRL_REG, reg);
miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, 0);
/* reset PHY */
if (miiphy_reset(name, phyaddr))
return;
/*
* ZyXEL NSA310S uses the 88E1310S Alaska (interface identical to 88E1318)
* and has an MCU attached to the LED[2] via tristate interrupt
*/
/* switch to LED register page */
miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, MV88E1318_LED_PG);
/* read out LED polarity register */
miiphy_read(name, phyaddr, MV88E1318_LED_POL_REG, ®);
/* clear 4, set 5 - LED2 low, tri-state */
reg &= ~(MV88E1318_LED2_4);
reg |= (MV88E1318_LED2_5);
/* write back LED polarity register */
miiphy_write(name, phyaddr, MV88E1318_LED_POL_REG, reg);
/* jump back to page 0, per the PHY chip documenation. */
miiphy_write(name, phyaddr, MV88E1318_PGADR_REG, 0);
/* set PHY back to auto-negotiation mode */
miiphy_write(name, phyaddr, 0x4, 0x1e1);
miiphy_write(name, phyaddr, 0x9, 0x300);
/* downshift */
miiphy_write(name, phyaddr, 0x10, 0x3860);
miiphy_write(name, phyaddr, 0x0, 0x9140);
printf("MV88E1318 PHY initialized on %s\n", name);
}
#endif /* CONFIG_RESET_PHY_R */
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