mirror of
https://github.com/u-boot/u-boot.git
synced 2025-04-24 06:24:17 +00:00

They are not required to be global, make them static. Signed-off-by: Yang Xiwen <forbidden405@outlook.com>
632 lines
17 KiB
C
632 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Hisilicon Fast Ethernet MAC Driver
|
|
* Adapted from linux
|
|
*
|
|
* Copyright (c) 2016 HiSilicon Technologies Co., Ltd.
|
|
* Copyright (c) 2023 Yang Xiwen <forbidden405@outlook.com>
|
|
*/
|
|
|
|
#include <dm.h>
|
|
#include <clk.h>
|
|
#include <miiphy.h>
|
|
#include <net.h>
|
|
#include <reset.h>
|
|
#include <wait_bit.h>
|
|
#include <asm/io.h>
|
|
#include <dm/device_compat.h>
|
|
#include <dm/lists.h>
|
|
#include <linux/bitfield.h>
|
|
#include <linux/ethtool.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/kernel.h>
|
|
|
|
/* MAC control register list */
|
|
#define MAC_PORTSEL 0x0200
|
|
#define MAC_PORTSEL_STAT_CPU BIT(0)
|
|
#define MAC_PORTSEL_RMII BIT(1)
|
|
#define MAC_PORTSET 0x0208
|
|
#define MAC_PORTSET_DUPLEX_FULL BIT(0)
|
|
#define MAC_PORTSET_LINKED BIT(1)
|
|
#define MAC_PORTSET_SPEED_100M BIT(2)
|
|
#define MAC_SET 0x0210
|
|
#define MAX_FRAME_SIZE 1600
|
|
#define MAX_FRAME_SIZE_MASK GENMASK(10, 0)
|
|
#define BIT_PAUSE_EN BIT(18)
|
|
#define RX_COALESCE_SET 0x0340
|
|
#define RX_COALESCED_FRAME_OFFSET 24
|
|
#define RX_COALESCED_FRAMES 8
|
|
#define RX_COALESCED_TIMER 0x74
|
|
#define QLEN_SET 0x0344
|
|
#define RX_DEPTH_OFFSET 8
|
|
#define MAX_HW_FIFO_DEPTH 64
|
|
#define HW_TX_FIFO_DEPTH 1
|
|
#define MAX_HW_RX_FIFO_DEPTH (MAX_HW_FIFO_DEPTH - HW_TX_FIFO_DEPTH)
|
|
#define HW_RX_FIFO_DEPTH min(PKTBUFSRX, MAX_HW_RX_FIFO_DEPTH)
|
|
#define IQFRM_DES 0x0354
|
|
#define RX_FRAME_LEN_MASK GENMASK(11, 0)
|
|
#define RX_FRAME_IN_INDEX_MASK GENMASK(17, 12)
|
|
#define IQ_ADDR 0x0358
|
|
#define EQ_ADDR 0x0360
|
|
#define EQFRM_LEN 0x0364
|
|
#define ADDRQ_STAT 0x036C
|
|
#define TX_CNT_INUSE_MASK GENMASK(5, 0)
|
|
#define BIT_TX_READY BIT(24)
|
|
#define BIT_RX_READY BIT(25)
|
|
/* global control register list */
|
|
#define GLB_HOSTMAC_L32 0x0000
|
|
#define GLB_HOSTMAC_H16 0x0004
|
|
#define GLB_SOFT_RESET 0x0008
|
|
#define SOFT_RESET_ALL BIT(0)
|
|
#define GLB_FWCTRL 0x0010
|
|
#define FWCTRL_VLAN_ENABLE BIT(0)
|
|
#define FWCTRL_FW2CPU_ENA BIT(5)
|
|
#define FWCTRL_FWALL2CPU BIT(7)
|
|
#define GLB_MACTCTRL 0x0014
|
|
#define MACTCTRL_UNI2CPU BIT(1)
|
|
#define MACTCTRL_MULTI2CPU BIT(3)
|
|
#define MACTCTRL_BROAD2CPU BIT(5)
|
|
#define MACTCTRL_MACT_ENA BIT(7)
|
|
#define GLB_IRQ_STAT 0x0030
|
|
#define GLB_IRQ_ENA 0x0034
|
|
#define IRQ_ENA_PORT0_MASK GENMASK(7, 0)
|
|
#define IRQ_ENA_PORT0 BIT(18)
|
|
#define IRQ_ENA_ALL BIT(19)
|
|
#define GLB_IRQ_RAW 0x0038
|
|
#define IRQ_INT_RX_RDY BIT(0)
|
|
#define IRQ_INT_TX_PER_PACKET BIT(1)
|
|
#define IRQ_INT_TX_FIFO_EMPTY BIT(6)
|
|
#define IRQ_INT_MULTI_RXRDY BIT(7)
|
|
#define DEF_INT_MASK (IRQ_INT_MULTI_RXRDY | \
|
|
IRQ_INT_TX_PER_PACKET | \
|
|
IRQ_INT_TX_FIFO_EMPTY)
|
|
#define GLB_MAC_L32_BASE 0x0100
|
|
#define GLB_MAC_H16_BASE 0x0104
|
|
#define MACFLT_HI16_MASK GENMASK(15, 0)
|
|
#define BIT_MACFLT_ENA BIT(17)
|
|
#define BIT_MACFLT_FW2CPU BIT(21)
|
|
#define GLB_MAC_H16(reg) (GLB_MAC_H16_BASE + ((reg) * 0x8))
|
|
#define GLB_MAC_L32(reg) (GLB_MAC_L32_BASE + ((reg) * 0x8))
|
|
#define MAX_MAC_FILTER_NUM 8
|
|
#define MAX_UNICAST_ADDRESSES 2
|
|
#define MAX_MULTICAST_ADDRESSES (MAX_MAC_FILTER_NUM - \
|
|
MAX_UNICAST_ADDRESSES)
|
|
/* software tx and rx queue number, should be power of 2 */
|
|
#define TXQ_NUM 64
|
|
#define RXQ_NUM 128
|
|
|
|
#define PHY_RESET_DELAYS_PROPERTY "hisilicon,phy-reset-delays-us"
|
|
#define MAC_RESET_DELAY_PROPERTY "hisilicon,mac-reset-delay-us"
|
|
#define MAC_RESET_ASSERT_PERIOD 200000
|
|
|
|
enum phy_reset_delays {
|
|
PRE_DELAY,
|
|
PULSE,
|
|
POST_DELAY,
|
|
DELAYS_NUM,
|
|
};
|
|
|
|
enum clk_type {
|
|
CLK_MAC,
|
|
CLK_BUS,
|
|
CLK_PHY,
|
|
CLK_NUM,
|
|
};
|
|
|
|
struct hisi_femac_priv {
|
|
void __iomem *port_base;
|
|
void __iomem *glb_base;
|
|
struct clk *clks[CLK_NUM];
|
|
struct reset_ctl *mac_rst;
|
|
struct reset_ctl *phy_rst;
|
|
u32 phy_reset_delays[DELAYS_NUM];
|
|
u32 mac_reset_delay;
|
|
|
|
struct phy_device *phy;
|
|
|
|
u32 link_status;
|
|
};
|
|
|
|
struct hisi_femac_stat_entry {
|
|
const char *name;
|
|
u32 offset;
|
|
u32 mask;
|
|
};
|
|
|
|
/* please refer to the datasheet for the description of these entries */
|
|
static const struct hisi_femac_stat_entry hisi_femac_stats_table[] = {
|
|
{ "rxsof_cnt", 0x584, GENMASK(31, 28) },
|
|
{ "rxeof_cnt", 0x584, GENMASK(27, 24) },
|
|
{ "rxcrcok_cnt", 0x584, GENMASK(23, 20) },
|
|
{ "rxcrcbad_cnt", 0x584, GENMASK(19, 16) },
|
|
{ "txsof_cnt", 0x584, GENMASK(15, 12) },
|
|
{ "txeof_cnt", 0x584, GENMASK(11, 8) },
|
|
{ "txcrcok_cnt", 0x584, GENMASK(7, 4) },
|
|
{ "txcrcbad_cnt", 0x584, GENMASK(3, 0) },
|
|
{ "pkts_cpu", 0x5a0, GENMASK(15, 0) },
|
|
{ "addr_cpu", 0x5a4, GENMASK(15, 0) },
|
|
{ "pkts_port", 0x5a8, GENMASK(15, 0) },
|
|
{ "pkts_cpu2tx", 0x5ac, GENMASK(15, 0) },
|
|
{ "rxdvrise", 0x600, GENMASK(31, 0) },
|
|
{ "ifinoctets", 0x604, GENMASK(31, 0) },
|
|
{ "octets_rx", 0x608, GENMASK(31, 0) },
|
|
{ "local_mac_match", 0x60c, GENMASK(31, 0) },
|
|
{ "pkts", 0x610, GENMASK(31, 0) },
|
|
{ "broadcastpkts", 0x614, GENMASK(31, 0) },
|
|
{ "multicastpkts", 0x618, GENMASK(31, 0) },
|
|
{ "ifinucastpkts", 0x61c, GENMASK(31, 0) },
|
|
{ "ifinerrors", 0x620, GENMASK(31, 0) },
|
|
{ "crcerr", 0x624, GENMASK(31, 0) },
|
|
{ "abnormalsizepkts", 0x628, GENMASK(31, 0) },
|
|
{ "dot3alignmenterr", 0x62c, GENMASK(31, 0) },
|
|
{ "dot3pause", 0x630, GENMASK(31, 0) },
|
|
{ "dropevents", 0x634, GENMASK(31, 0) },
|
|
{ "flux_frame_cnt", 0x638, GENMASK(31, 0) },
|
|
{ "flux_drop_cnt", 0x63c, GENMASK(31, 0) },
|
|
{ "mac_not2cpu_pkts", 0x64c, GENMASK(31, 0) },
|
|
{ "pkts_tx", 0x780, GENMASK(31, 0) },
|
|
{ "broadcastpkts_tx", 0x784, GENMASK(31, 0) },
|
|
{ "multicastpkts_tx", 0x788, GENMASK(31, 0) },
|
|
{ "ifoutucastpkts_tx", 0x78c, GENMASK(31, 0) },
|
|
{ "octets_tx", 0x790, GENMASK(31, 0) },
|
|
{ "dot3pause", 0x794, GENMASK(31, 0) },
|
|
{ "retry_times_tx", 0x798, GENMASK(31, 0) },
|
|
{ "collisions", 0x79c, GENMASK(31, 0) },
|
|
{ "dot3latecol", 0x7a0, GENMASK(31, 0) },
|
|
{ "dot3colok", 0x7a4, GENMASK(31, 0) },
|
|
{ "dot3excessivecol", 0x7a8, GENMASK(31, 0) },
|
|
{ "dot3colcnt", 0x7ac, GENMASK(31, 0) },
|
|
};
|
|
|
|
static void hisi_femac_irq_enable(struct hisi_femac_priv *priv, int irqs)
|
|
{
|
|
u32 val;
|
|
|
|
val = readl(priv->glb_base + GLB_IRQ_ENA);
|
|
writel(val | irqs, priv->glb_base + GLB_IRQ_ENA);
|
|
}
|
|
|
|
static void hisi_femac_irq_disable(struct hisi_femac_priv *priv, int irqs)
|
|
{
|
|
u32 val;
|
|
|
|
val = readl(priv->glb_base + GLB_IRQ_ENA);
|
|
writel(val & (~irqs), priv->glb_base + GLB_IRQ_ENA);
|
|
}
|
|
|
|
static void hisi_femac_port_init(struct hisi_femac_priv *priv)
|
|
{
|
|
u32 val;
|
|
|
|
/* MAC gets link status info and phy mode by software config */
|
|
val = MAC_PORTSEL_STAT_CPU;
|
|
if (priv->phy->interface == PHY_INTERFACE_MODE_RMII)
|
|
val |= MAC_PORTSEL_RMII;
|
|
writel(val, priv->port_base + MAC_PORTSEL);
|
|
|
|
/*clear all interrupt status */
|
|
writel(IRQ_ENA_PORT0_MASK, priv->glb_base + GLB_IRQ_RAW);
|
|
hisi_femac_irq_disable(priv, IRQ_ENA_PORT0_MASK | IRQ_ENA_PORT0);
|
|
|
|
val = readl(priv->glb_base + GLB_FWCTRL);
|
|
val &= ~(FWCTRL_VLAN_ENABLE | FWCTRL_FWALL2CPU);
|
|
val |= FWCTRL_FW2CPU_ENA;
|
|
writel(val, priv->glb_base + GLB_FWCTRL);
|
|
|
|
val = readl(priv->glb_base + GLB_MACTCTRL);
|
|
val |= (MACTCTRL_BROAD2CPU | MACTCTRL_MACT_ENA);
|
|
writel(val, priv->glb_base + GLB_MACTCTRL);
|
|
|
|
val = readl(priv->port_base + MAC_SET);
|
|
val &= ~MAX_FRAME_SIZE_MASK;
|
|
val |= MAX_FRAME_SIZE;
|
|
writel(val, priv->port_base + MAC_SET);
|
|
|
|
val = RX_COALESCED_TIMER |
|
|
(RX_COALESCED_FRAMES << RX_COALESCED_FRAME_OFFSET);
|
|
writel(val, priv->port_base + RX_COALESCE_SET);
|
|
|
|
val = (HW_RX_FIFO_DEPTH << RX_DEPTH_OFFSET) | HW_TX_FIFO_DEPTH;
|
|
writel(val, priv->port_base + QLEN_SET);
|
|
}
|
|
|
|
static void hisi_femac_rx_refill(struct hisi_femac_priv *priv)
|
|
{
|
|
int i;
|
|
ulong addr;
|
|
|
|
for (i = 0; i < HW_RX_FIFO_DEPTH; i++) {
|
|
addr = (ulong)net_rx_packets[i];
|
|
writel(addr, priv->port_base + IQ_ADDR);
|
|
}
|
|
}
|
|
|
|
static void hisi_femac_adjust_link(struct udevice *dev)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
struct phy_device *phy = priv->phy;
|
|
u32 status = 0;
|
|
|
|
if (phy->link)
|
|
status |= MAC_PORTSET_LINKED;
|
|
if (phy->duplex == DUPLEX_FULL)
|
|
status |= MAC_PORTSET_DUPLEX_FULL;
|
|
if (phy->speed == SPEED_100)
|
|
status |= MAC_PORTSET_SPEED_100M;
|
|
|
|
writel(status, priv->port_base + MAC_PORTSET);
|
|
}
|
|
|
|
static int hisi_femac_port_reset(struct hisi_femac_priv *priv)
|
|
{
|
|
u32 val;
|
|
|
|
val = readl(priv->glb_base + GLB_SOFT_RESET);
|
|
val |= SOFT_RESET_ALL;
|
|
writel(val, priv->glb_base + GLB_SOFT_RESET);
|
|
|
|
udelay(800);
|
|
|
|
val &= ~SOFT_RESET_ALL;
|
|
writel(val, priv->glb_base + GLB_SOFT_RESET);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hisi_femac_set_hw_mac_addr(struct udevice *dev)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
struct eth_pdata *plat = dev_get_plat(dev);
|
|
unsigned char *mac = plat->enetaddr;
|
|
u32 reg;
|
|
|
|
reg = mac[1] | (mac[0] << 8);
|
|
writel(reg, priv->glb_base + GLB_HOSTMAC_H16);
|
|
|
|
reg = mac[5] | (mac[4] << 8) | (mac[3] << 16) | (mac[2] << 24);
|
|
writel(reg, priv->glb_base + GLB_HOSTMAC_L32);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hisi_femac_start(struct udevice *dev)
|
|
{
|
|
int ret;
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
|
|
hisi_femac_port_reset(priv);
|
|
hisi_femac_set_hw_mac_addr(dev);
|
|
hisi_femac_rx_refill(priv);
|
|
|
|
ret = phy_startup(priv->phy);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to startup phy: %d\n", ret);
|
|
return log_msg_ret("phy", ret);
|
|
}
|
|
|
|
if (!priv->phy->link) {
|
|
debug("%s: link down\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
hisi_femac_adjust_link(dev);
|
|
|
|
writel(IRQ_ENA_PORT0_MASK, priv->glb_base + GLB_IRQ_RAW);
|
|
hisi_femac_irq_enable(priv, IRQ_ENA_ALL | IRQ_ENA_PORT0 | DEF_INT_MASK);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hisi_femac_send(struct udevice *dev, void *packet, int length)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
ulong addr = (ulong)packet;
|
|
int ret;
|
|
|
|
// clear previous irq
|
|
writel(IRQ_INT_TX_PER_PACKET, priv->glb_base + GLB_IRQ_RAW);
|
|
|
|
// flush cache
|
|
flush_cache(addr, length + ETH_FCS_LEN);
|
|
|
|
// write packet address
|
|
writel(addr, priv->port_base + EQ_ADDR);
|
|
|
|
// write packet length (and send it)
|
|
writel(length + ETH_FCS_LEN, priv->port_base + EQFRM_LEN);
|
|
|
|
// wait until FIFO is empty
|
|
ret = wait_for_bit_le32(priv->glb_base + GLB_IRQ_RAW, IRQ_INT_TX_PER_PACKET, true, 50, false);
|
|
if (ret == -ETIMEDOUT) {
|
|
dev_err(dev, "FIFO timeout\n");
|
|
return log_msg_ret("net", ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hisi_femac_recv(struct udevice *dev, int flags, uchar **packetp)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
int val, index, length;
|
|
|
|
val = readl(priv->glb_base + GLB_IRQ_RAW);
|
|
if (!(val & IRQ_INT_RX_RDY))
|
|
return -EAGAIN;
|
|
|
|
val = readl(priv->port_base + IQFRM_DES);
|
|
index = (val & RX_FRAME_IN_INDEX_MASK) >> 12;
|
|
length = val & RX_FRAME_LEN_MASK;
|
|
|
|
// invalidate cache
|
|
invalidate_dcache_range((ulong)net_rx_packets[index], (ulong)net_rx_packets[index] + length);
|
|
*packetp = net_rx_packets[index];
|
|
|
|
// Tell hardware we will process the packet
|
|
writel(IRQ_INT_RX_RDY, priv->glb_base + GLB_IRQ_RAW);
|
|
|
|
return length;
|
|
}
|
|
|
|
static int hisi_femac_free_pkt(struct udevice *dev, uchar *packet, int length)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
ulong addr = (ulong)packet;
|
|
|
|
// Tell hardware the packet can be reused
|
|
writel(addr, priv->port_base + IQ_ADDR);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hisi_femac_stop(struct udevice *dev)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
|
|
// assert internal reset
|
|
writel(SOFT_RESET_ALL, priv->glb_base + GLB_SOFT_RESET);
|
|
}
|
|
|
|
static int hisi_femac_get_sset_count(struct udevice *dev)
|
|
{
|
|
return ARRAY_SIZE(hisi_femac_stats_table);
|
|
}
|
|
|
|
static void hisi_femac_get_strings(struct udevice *dev, u8 *data)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hisi_femac_stats_table); i++)
|
|
strcpy(data + i * ETH_GSTRING_LEN, hisi_femac_stats_table[i].name);
|
|
}
|
|
|
|
/* Non-constant mask variant of FIELD_GET/FIELD_PREP */
|
|
#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
|
|
|
|
static void hisi_femac_get_stats(struct udevice *dev, u64 *data)
|
|
{
|
|
int i;
|
|
u32 mask, reg;
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
void __iomem *port_base = priv->port_base;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hisi_femac_stats_table); i++) {
|
|
mask = hisi_femac_stats_table[i].mask;
|
|
reg = readl(port_base + hisi_femac_stats_table[i].offset);
|
|
|
|
data[i] = field_get(mask, reg);
|
|
}
|
|
}
|
|
|
|
static int hisi_femac_of_to_plat(struct udevice *dev)
|
|
{
|
|
int ret, i;
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
ofnode mdio_node;
|
|
bool mdio_registered = false;
|
|
static const char * const clk_strs[] = {
|
|
[CLK_MAC] = "mac",
|
|
[CLK_BUS] = "bus",
|
|
[CLK_PHY] = "phy",
|
|
};
|
|
|
|
priv->port_base = dev_remap_addr_name(dev, "port");
|
|
if (!priv->port_base) {
|
|
dev_err(dev, "Failed to remap port address space\n");
|
|
return log_msg_ret("net", -EINVAL);
|
|
}
|
|
|
|
priv->glb_base = dev_remap_addr_name(dev, "glb");
|
|
if (IS_ERR(priv->glb_base)) {
|
|
dev_err(dev, "Failed to remap global address space\n");
|
|
return log_msg_ret("net", -EINVAL);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(clk_strs); i++) {
|
|
priv->clks[i] = devm_clk_get(dev, clk_strs[i]);
|
|
if (IS_ERR(priv->clks[i])) {
|
|
dev_err(dev, "Error getting clock %s\n", clk_strs[i]);
|
|
return log_msg_ret("clk", PTR_ERR(priv->clks[i]));
|
|
}
|
|
}
|
|
|
|
priv->mac_rst = devm_reset_control_get(dev, "mac");
|
|
if (IS_ERR(priv->mac_rst)) {
|
|
dev_err(dev, "Failed to get MAC reset %ld\n", PTR_ERR(priv->mac_rst));
|
|
return log_msg_ret("rst", PTR_ERR(priv->mac_rst));
|
|
}
|
|
|
|
priv->phy_rst = devm_reset_control_get(dev, "phy");
|
|
if (IS_ERR(priv->phy_rst)) {
|
|
dev_err(dev, "Failed to get PHY reset %ld\n", PTR_ERR(priv->phy_rst));
|
|
return log_msg_ret("rst", PTR_ERR(priv->phy_rst));
|
|
}
|
|
|
|
ret = dev_read_u32_array(dev,
|
|
PHY_RESET_DELAYS_PROPERTY,
|
|
priv->phy_reset_delays,
|
|
DELAYS_NUM);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to get PHY reset delays %d\n", ret);
|
|
return log_msg_ret("rst", ret);
|
|
}
|
|
|
|
priv->mac_reset_delay = dev_read_u32_default(dev,
|
|
MAC_RESET_DELAY_PROPERTY,
|
|
MAC_RESET_ASSERT_PERIOD);
|
|
|
|
/* Create MDIO bus */
|
|
ofnode_for_each_subnode(mdio_node, dev_ofnode(dev)) {
|
|
const char *subnode_name = ofnode_get_name(mdio_node);
|
|
struct udevice *mdiodev;
|
|
|
|
// Skip subnodes not starting with "mdio"
|
|
if (strncmp(subnode_name, "mdio", 4))
|
|
continue;
|
|
|
|
ret = device_bind_driver_to_node(dev, "hisi-femac-mdio",
|
|
subnode_name, mdio_node, &mdiodev);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to register MDIO bus device %d\n", ret);
|
|
return log_msg_ret("net", ret);
|
|
}
|
|
|
|
mdio_registered = true;
|
|
break;
|
|
}
|
|
|
|
if (!mdio_registered) {
|
|
dev_err(dev, "No MDIO subnode is found!\n");
|
|
return log_msg_ret("mdio", -ENODATA);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hisi_femac_phy_reset(struct hisi_femac_priv *priv)
|
|
{
|
|
struct reset_ctl *rst = priv->phy_rst;
|
|
u32 *delays = priv->phy_reset_delays;
|
|
int ret;
|
|
|
|
// Disable MAC clk before phy reset
|
|
ret = clk_disable(priv->clks[CLK_MAC]);
|
|
if (ret < 0) {
|
|
pr_err("%s: Failed to disable MAC clock %d\n", __func__, ret);
|
|
return log_msg_ret("clk", ret);
|
|
}
|
|
ret = clk_disable(priv->clks[CLK_BUS]);
|
|
if (ret < 0) {
|
|
pr_err("%s: Failed to disable bus clock %d\n", __func__, ret);
|
|
return log_msg_ret("clk", ret);
|
|
}
|
|
|
|
udelay(delays[PRE_DELAY]);
|
|
|
|
ret = reset_assert(rst);
|
|
if (ret < 0) {
|
|
pr_err("%s: Failed to assert reset %d\n", __func__, ret);
|
|
return log_msg_ret("rst", ret);
|
|
}
|
|
|
|
udelay(delays[PULSE]);
|
|
|
|
ret = reset_deassert(rst);
|
|
if (ret < 0) {
|
|
pr_err("%s: Failed to deassert reset %d\n", __func__, ret);
|
|
return log_msg_ret("rst", ret);
|
|
}
|
|
|
|
udelay(delays[POST_DELAY]);
|
|
|
|
ret = clk_enable(priv->clks[CLK_MAC]);
|
|
if (ret < 0) {
|
|
pr_err("%s: Failed to enable MAC clock %d\n", __func__, ret);
|
|
return log_msg_ret("clk", ret);
|
|
}
|
|
ret = clk_enable(priv->clks[CLK_BUS]);
|
|
if (ret < 0) {
|
|
pr_err("%s: Failed to enable MAC bus clock %d\n", __func__, ret);
|
|
return log_msg_ret("clk", ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hisi_femac_probe(struct udevice *dev)
|
|
{
|
|
struct hisi_femac_priv *priv = dev_get_priv(dev);
|
|
int ret, i;
|
|
|
|
// Enable clocks
|
|
for (i = 0; i < CLK_NUM; i++) {
|
|
ret = clk_prepare_enable(priv->clks[i]);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to enable clk %d: %d\n", i, ret);
|
|
return log_msg_ret("clk", ret);
|
|
}
|
|
}
|
|
|
|
// Reset MAC
|
|
ret = reset_assert(priv->mac_rst);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to assert MAC reset: %d\n", ret);
|
|
return log_msg_ret("net", ret);
|
|
}
|
|
|
|
udelay(priv->mac_reset_delay);
|
|
|
|
ret = reset_deassert(priv->mac_rst);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to deassert MAC reset: %d\n", ret);
|
|
return log_msg_ret("net", ret);
|
|
}
|
|
|
|
// Reset PHY
|
|
ret = hisi_femac_phy_reset(priv);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to reset PHY: %d\n", ret);
|
|
return log_msg_ret("net", ret);
|
|
}
|
|
|
|
// Connect to PHY
|
|
priv->phy = dm_eth_phy_connect(dev);
|
|
if (!priv->phy) {
|
|
dev_err(dev, "Failed to connect to phy\n");
|
|
return log_msg_ret("phy", -EINVAL);
|
|
}
|
|
|
|
hisi_femac_port_init(priv);
|
|
return 0;
|
|
}
|
|
|
|
static const struct eth_ops hisi_femac_ops = {
|
|
.start = hisi_femac_start,
|
|
.send = hisi_femac_send,
|
|
.recv = hisi_femac_recv,
|
|
.free_pkt = hisi_femac_free_pkt,
|
|
.stop = hisi_femac_stop,
|
|
.write_hwaddr = hisi_femac_set_hw_mac_addr,
|
|
.get_sset_count = hisi_femac_get_sset_count,
|
|
.get_strings = hisi_femac_get_strings,
|
|
.get_stats = hisi_femac_get_stats,
|
|
};
|
|
|
|
static const struct udevice_id hisi_femac_ids[] = {
|
|
{.compatible = "hisilicon,hisi-femac-v1",},
|
|
{.compatible = "hisilicon,hisi-femac-v2",},
|
|
{.compatible = "hisilicon,hi3516cv300-femac",},
|
|
{.compatible = "hisilicon,hi3798mv200-femac",},
|
|
{},
|
|
};
|
|
|
|
U_BOOT_DRIVER(hisi_femac_driver) = {
|
|
.name = "eth_hisi_femac",
|
|
.id = UCLASS_ETH,
|
|
.of_match = of_match_ptr(hisi_femac_ids),
|
|
.of_to_plat = hisi_femac_of_to_plat,
|
|
.ops = &hisi_femac_ops,
|
|
.probe = hisi_femac_probe,
|
|
.plat_auto = sizeof(struct eth_pdata),
|
|
.priv_auto = sizeof(struct hisi_femac_priv),
|
|
};
|