realtek-doc/sources/uboot-be550/drivers/net/ipq_common/athrs17_phy.c
Markus Stockhausen 9b3bf98ee9 add BE550 sources
2025-10-14 01:59:03 -04:00

434 lines
13 KiB
C

/*
* Copyright (c) 2015-2016, 2020 The Linux Foundation. All rights reserved.
*
* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* Manage the QTI S17C ethernet PHY.
*
* All definitions in this file are operating system independent!
*/
#include <common.h>
#include "athrs17_phy.h"
/*
* Externel Common mdio read, PHY Name : IPQ MDIO1
*/
extern int ipq_mdio_write(int mii_id, int regnum, u16 value);
extern int ipq_mdio_read(int mii_id, int regnum, ushort *data);
/******************************************************************************
* FUNCTION DESCRIPTION: Read switch internal register.
* Switch internal register is accessed through the
* MDIO interface. MDIO access is only 16 bits wide so
* it needs the two time access to complete the internal
* register access.
* INPUT : register address
* OUTPUT : Register value
*
*****************************************************************************/
static uint32_t athrs17_reg_read(uint32_t reg_addr)
{
uint32_t reg_word_addr;
uint32_t phy_addr, reg_val;
uint16_t phy_val;
uint16_t tmp_val;
uint8_t phy_reg;
/* change reg_addr to 16-bit word address, 32-bit aligned */
reg_word_addr = (reg_addr & 0xfffffffc) >> 1;
/* configure register high address */
phy_addr = 0x18;
phy_reg = 0x0;
phy_val = (uint16_t) ((reg_word_addr >> 8) & 0x1ff); /* bit16-8 of reg address */
ipq_mdio_write(phy_addr, phy_reg, phy_val);
/*
* For some registers such as MIBs, since it is read/clear, we should
* read the lower 16-bit register then the higher one
*/
/* read register in lower address */
phy_addr = 0x10 | ((reg_word_addr >> 5) & 0x7); /* bit7-5 of reg address */
phy_reg = (uint8_t) (reg_word_addr & 0x1f); /* bit4-0 of reg address */
ipq_mdio_read(phy_addr, phy_reg, &phy_val);
/* read register in higher address */
reg_word_addr++;
phy_addr = 0x10 | ((reg_word_addr >> 5) & 0x7); /* bit7-5 of reg address */
phy_reg = (uint8_t) (reg_word_addr & 0x1f); /* bit4-0 of reg address */
ipq_mdio_read(phy_addr, phy_reg, &tmp_val);
reg_val = (tmp_val << 16 | phy_val);
return reg_val;
}
/******************************************************************************
* FUNCTION DESCRIPTION: Write switch internal register.
* Switch internal register is accessed through the
* MDIO interface. MDIO access is only 16 bits wide so
* it needs the two time access to complete the internal
* register access.
* INPUT : register address, value to be written
* OUTPUT : NONE
*
*****************************************************************************/
static void athrs17_reg_write(uint32_t reg_addr, uint32_t reg_val)
{
uint32_t reg_word_addr;
uint32_t phy_addr;
uint16_t phy_val;
uint8_t phy_reg;
/* change reg_addr to 16-bit word address, 32-bit aligned */
reg_word_addr = (reg_addr & 0xfffffffc) >> 1;
/* configure register high address */
phy_addr = 0x18;
phy_reg = 0x0;
phy_val = (uint16_t) ((reg_word_addr >> 8) & 0x1ff); /* bit16-8 of reg address */
ipq_mdio_write(phy_addr, phy_reg, phy_val);
/*
* For some registers such as ARL and VLAN, since they include BUSY bit
* in lower address, we should write the higher 16-bit register then the
* lower one
*/
/* read register in higher address */
reg_word_addr++;
phy_addr = 0x10 | ((reg_word_addr >> 5) & 0x7); /* bit7-5 of reg address */
phy_reg = (uint8_t) (reg_word_addr & 0x1f); /* bit4-0 of reg address */
phy_val = (uint16_t) ((reg_val >> 16) & 0xffff);
ipq_mdio_write(phy_addr, phy_reg, phy_val);
/* write register in lower address */
reg_word_addr--;
phy_addr = 0x10 | ((reg_word_addr >> 5) & 0x7); /* bit7-5 of reg address */
phy_reg = (uint8_t) (reg_word_addr & 0x1f); /* bit4-0 of reg address */
phy_val = (uint16_t) (reg_val & 0xffff);
ipq_mdio_write(phy_addr, phy_reg, phy_val);
}
/*********************************************************************
* FUNCTION DESCRIPTION: V-lan configuration given by Switch team
Vlan 1:PHY0,1,2,3 and Mac 6 of s17c
Vlan 2:PHY4 and Mac 0 of s17c
* INPUT : NONE
* OUTPUT: NONE
*********************************************************************/
void athrs17_vlan_config(void)
{
athrs17_reg_write(S17_P0LOOKUP_CTRL_REG, 0x00140020);
athrs17_reg_write(S17_P0VLAN_CTRL0_REG, 0x20001);
athrs17_reg_write(S17_P1LOOKUP_CTRL_REG, 0x0014005c);
athrs17_reg_write(S17_P1VLAN_CTRL0_REG, 0x10001);
athrs17_reg_write(S17_P2LOOKUP_CTRL_REG, 0x0014005a);
athrs17_reg_write(S17_P2VLAN_CTRL0_REG, 0x10001);
athrs17_reg_write(S17_P3LOOKUP_CTRL_REG, 0x00140056);
athrs17_reg_write(S17_P3VLAN_CTRL0_REG, 0x10001);
athrs17_reg_write(S17_P4LOOKUP_CTRL_REG, 0x0014004e);
athrs17_reg_write(S17_P4VLAN_CTRL0_REG, 0x10001);
athrs17_reg_write(S17_P5LOOKUP_CTRL_REG, 0x00140001);
athrs17_reg_write(S17_P5VLAN_CTRL0_REG, 0x20001);
athrs17_reg_write(S17_P6LOOKUP_CTRL_REG, 0x0014001e);
athrs17_reg_write(S17_P6VLAN_CTRL0_REG, 0x10001);
printf("%s ...done\n", __func__);
}
/*******************************************************************
* FUNCTION DESCRIPTION: Reset S17 register
* INPUT: NONE
* OUTPUT: NONE
*******************************************************************/
int athrs17_init_switch(void)
{
uint32_t data;
uint32_t i = 0;
/* Reset the switch before initialization */
athrs17_reg_write(S17_MASK_CTRL_REG, S17_MASK_CTRL_SOFT_RET);
do {
udelay(10);
data = athrs17_reg_read(S17_MASK_CTRL_REG);
i++;
if (i == 10){
printf("QCA_8337: Failed to reset\n");
return -1;
}
} while (data & S17_MASK_CTRL_SOFT_RET);
i = 0;
do {
udelay(10);
data = athrs17_reg_read(S17_GLOBAL_INT0_REG);
i++;
if (i == 10)
return -1;
} while ((data & S17_GLOBAL_INITIALIZED_STATUS) != S17_GLOBAL_INITIALIZED_STATUS);
return 0;
}
/*********************************************************************
* FUNCTION DESCRIPTION: Configure S17 register
* INPUT : NONE
* OUTPUT: NONE
*********************************************************************/
void athrs17_reg_init(ipq_s17c_swt_cfg_t *swt_cfg)
{
athrs17_reg_write(S17_MAC_PWR_REG, swt_cfg->mac_pwr);
athrs17_reg_write(S17_GLOFW_CTRL1_REG, (S17_IGMP_JOIN_LEAVE_DPALL |
S17_BROAD_DPALL |
S17_MULTI_FLOOD_DPALL |
S17_UNI_FLOOD_DPALL));
if (swt_cfg->update) {
athrs17_reg_write(S17_P0STATUS_REG, swt_cfg->port0_status);
athrs17_reg_write(S17_P5PAD_MODE_REG, swt_cfg->pad5_mode);
athrs17_reg_write(S17_P0PAD_MODE_REG, swt_cfg->pad0_mode);
} else {
athrs17_reg_write(S17_P0STATUS_REG, (S17_SPEED_1000M |
S17_TXMAC_EN |
S17_RXMAC_EN |
S17_DUPLEX_FULL));
athrs17_reg_write(S17_P5PAD_MODE_REG, S17_MAC0_RGMII_RXCLK_DELAY);
athrs17_reg_write(S17_P0PAD_MODE_REG, (S17_MAC0_RGMII_EN |
S17_MAC0_RGMII_TXCLK_DELAY |
S17_MAC0_RGMII_RXCLK_DELAY |
(0x1 << S17_MAC0_RGMII_TXCLK_SHIFT) |
(0x2 << S17_MAC0_RGMII_RXCLK_SHIFT)));
}
printf("%s: complete\n", __func__);
}
/*********************************************************************
* FUNCTION DESCRIPTION: Configure S17 register
* INPUT : NONE
* OUTPUT: NONE
*********************************************************************/
void athrs17_reg_init_lan(ipq_s17c_swt_cfg_t *swt_cfg)
{
uint32_t reg_val;
if (swt_cfg->update) {
athrs17_reg_write(S17_P6STATUS_REG, swt_cfg->port6_status);
athrs17_reg_write(S17_MAC_PWR_REG, swt_cfg->mac_pwr);
athrs17_reg_write(S17_P6PAD_MODE_REG, swt_cfg->pad6_mode);
athrs17_reg_write(S17_PWS_REG, swt_cfg->port0);
athrs17_reg_write(S17_SGMII_CTRL_REG, swt_cfg->sgmii_ctrl);
} else {
athrs17_reg_write(S17_P6STATUS_REG, (S17_SPEED_1000M |
S17_TXMAC_EN |
S17_RXMAC_EN |
S17_DUPLEX_FULL));
athrs17_reg_write(S17_MAC_PWR_REG, swt_cfg->mac_pwr);
reg_val = athrs17_reg_read(S17_P6PAD_MODE_REG);
athrs17_reg_write(S17_P6PAD_MODE_REG, (reg_val | S17_MAC6_SGMII_EN));
athrs17_reg_write(S17_PWS_REG, 0x2613a0);
athrs17_reg_write(S17_SGMII_CTRL_REG,(S17c_SGMII_EN_PLL |
S17c_SGMII_EN_RX |
S17c_SGMII_EN_TX |
S17c_SGMII_EN_SD |
S17c_SGMII_BW_HIGH |
S17c_SGMII_SEL_CLK125M |
S17c_SGMII_TXDR_CTRL_600mV |
S17c_SGMII_CDR_BW_8 |
S17c_SGMII_DIS_AUTO_LPI_25M |
S17c_SGMII_MODE_CTRL_SGMII_PHY |
S17c_SGMII_PAUSE_SG_TX_EN_25M |
S17c_SGMII_ASYM_PAUSE_25M |
S17c_SGMII_PAUSE_25M |
S17c_SGMII_HALF_DUPLEX_25M |
S17c_SGMII_FULL_DUPLEX_25M));
}
athrs17_reg_write(S17_MODULE_EN_REG, S17_MIB_COUNTER_ENABLE);
}
struct athrs17_regmap {
uint32_t start;
uint32_t end;
};
struct athrs17_regmap regmap[] = {
{ 0x000, 0x0e4 },
{ 0x100, 0x168 },
{ 0x200, 0x270 },
{ 0x400, 0x454 },
{ 0x600, 0x718 },
{ 0x800, 0xb70 },
{ 0xC00, 0xC80 },
{ 0x1100, 0x11a7 },
{ 0x1200, 0x12a7 },
{ 0x1300, 0x13a7 },
{ 0x1400, 0x14a7 },
{ 0x1600, 0x16a7 },
};
int do_ar8xxx_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
int i;
for (i = 0; i < ARRAY_SIZE(regmap); i++) {
uint32_t reg;
struct athrs17_regmap *section = &regmap[i];
for (reg = section->start; reg <= section->end; reg += sizeof(uint32_t)) {
uint32_t val = athrs17_reg_read(reg);
printf("%03zx: %08zx\n", reg, val);
}
}
return 0;
};
U_BOOT_CMD(
ar8xxx_dump, 1, 1, do_ar8xxx_dump,
"Dump ar8xxx registers",
"\n - print all ar8xxx registers\n"
);
/*********************************************************************
*
* FUNCTION DESCRIPTION: This function invokes RGMII,
* SGMII switch init routines.
* INPUT : ipq_s17c_swt_cfg_t *
* OUTPUT: NONE
*
**********************************************************************/
int ipq_athrs17_init(ipq_s17c_swt_cfg_t *swt_cfg)
{
int ret;
if (swt_cfg == NULL)
return -1;
ret = athrs17_init_switch();
if (ret != -1) {
athrs17_reg_init(swt_cfg);
athrs17_reg_init_lan(swt_cfg);
if (!(swt_cfg->skip_vlan))
athrs17_vlan_config();
printf ("S17c init done\n");
}
return ret;
}
int ipq_qca8337_switch_init(ipq_s17c_swt_cfg_t *s17c_swt_cfg)
{
int port;
for (port = 0; port < s17c_swt_cfg->port_count; ++port) {
u32 phy_val;
/* phy powerdown */
ipq_mdio_write(s17c_swt_cfg->port_phy_address[port], 0x0,
0x0800);
phy_val = ipq_mdio_read(s17c_swt_cfg->port_phy_address[port],
0x3d, NULL);
phy_val &= ~0x0040;
ipq_mdio_write(s17c_swt_cfg->port_phy_address[port], 0x3d,
phy_val);
/*
* PHY will stop the tx clock for a while when link is down
* en_anychange debug port 0xb bit13 = 0 //speed up link down tx_clk
* sel_rst_80us debug port 0xb bit10 = 0 //speed up speed mode change to 2'b10 tx_clk
*/
phy_val = ipq_mdio_read(s17c_swt_cfg->port_phy_address[port],
0xb, NULL);
phy_val &= ~0x2400;
ipq_mdio_write(s17c_swt_cfg->port_phy_address[port], 0xb,
phy_val);
mdelay(100);
}
if (ipq_athrs17_init(s17c_swt_cfg) != 0) {
printf("QCA_8337 switch init failed \n");
return -1;
}
for (port = 0; port < s17c_swt_cfg->port_count; ++port) {
ipq_mdio_write(s17c_swt_cfg->port_phy_address[port],
MII_ADVERTISE, ADVERTISE_ALL |
ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
/* phy reg 0x9, b10,1 = Prefer multi-port device (master) */
ipq_mdio_write(s17c_swt_cfg->port_phy_address[port],
MII_CTRL1000, (0x0400|ADVERTISE_1000FULL));
ipq_mdio_write(s17c_swt_cfg->port_phy_address[port],
MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
mdelay(100);
}
return 0;
}
int ipq_qca8337_link_update(ipq_s17c_swt_cfg_t *s17c_swt_cfg)
{
uint16_t phy_data;
int status = 1;
for(int i = 0; i < s17c_swt_cfg->port_count; ++i){
phy_data = ipq_mdio_read(s17c_swt_cfg->port_phy_address[i],
0x11, NULL);
if (phy_data == 0x50)
continue;
/* Atleast one port should be link up*/
if (phy_data & LINK_UP)
status = 0;
printf("QCA8337: Port%d %s ", i + 1, LINK(phy_data));
switch(SPEED(phy_data)){
case SPEED_1000M:
printf("Speed :1000M ");
break;
case SPEED_100M:
printf("Speed :100M ");
break;
default:
printf("Speed :10M ");
}
printf ("%s \n", DUPLEX(phy_data));
}
return status;
}
void ipq_s17c_switch_reset(int gpio)
{
unsigned int *switch_gpio_base =
(unsigned int *)GPIO_CONFIG_ADDR(gpio);
writel(0x203, switch_gpio_base);
writel(0x0, GPIO_IN_OUT_ADDR(gpio));
mdelay(500);
writel(0x2, GPIO_IN_OUT_ADDR(gpio));
}