upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1471 lines
35 KiB
1471 lines
35 KiB
/*
|
|
* CPSW Ethernet Switch Driver
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation version 2.
|
|
*
|
|
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
|
* kind, whether express or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <net.h>
|
|
#include <miiphy.h>
|
|
#include <malloc.h>
|
|
#include <net.h>
|
|
#include <netdev.h>
|
|
#include <cpsw.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/io.h>
|
|
#include <phy.h>
|
|
#include <asm/arch/cpu.h>
|
|
#include <dm.h>
|
|
#include <fdt_support.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define BITMASK(bits) (BIT(bits) - 1)
|
|
#define PHY_REG_MASK 0x1f
|
|
#define PHY_ID_MASK 0x1f
|
|
#define NUM_DESCS (PKTBUFSRX * 2)
|
|
#define PKT_MIN 60
|
|
#define PKT_MAX (1500 + 14 + 4 + 4)
|
|
#define CLEAR_BIT 1
|
|
#define GIGABITEN BIT(7)
|
|
#define FULLDUPLEXEN BIT(0)
|
|
#define MIIEN BIT(15)
|
|
|
|
/* reg offset */
|
|
#define CPSW_HOST_PORT_OFFSET 0x108
|
|
#define CPSW_SLAVE0_OFFSET 0x208
|
|
#define CPSW_SLAVE1_OFFSET 0x308
|
|
#define CPSW_SLAVE_SIZE 0x100
|
|
#define CPSW_CPDMA_OFFSET 0x800
|
|
#define CPSW_HW_STATS 0x900
|
|
#define CPSW_STATERAM_OFFSET 0xa00
|
|
#define CPSW_CPTS_OFFSET 0xc00
|
|
#define CPSW_ALE_OFFSET 0xd00
|
|
#define CPSW_SLIVER0_OFFSET 0xd80
|
|
#define CPSW_SLIVER1_OFFSET 0xdc0
|
|
#define CPSW_BD_OFFSET 0x2000
|
|
#define CPSW_MDIO_DIV 0xff
|
|
|
|
#define AM335X_GMII_SEL_OFFSET 0x630
|
|
|
|
/* DMA Registers */
|
|
#define CPDMA_TXCONTROL 0x004
|
|
#define CPDMA_RXCONTROL 0x014
|
|
#define CPDMA_SOFTRESET 0x01c
|
|
#define CPDMA_RXFREE 0x0e0
|
|
#define CPDMA_TXHDP_VER1 0x100
|
|
#define CPDMA_TXHDP_VER2 0x200
|
|
#define CPDMA_RXHDP_VER1 0x120
|
|
#define CPDMA_RXHDP_VER2 0x220
|
|
#define CPDMA_TXCP_VER1 0x140
|
|
#define CPDMA_TXCP_VER2 0x240
|
|
#define CPDMA_RXCP_VER1 0x160
|
|
#define CPDMA_RXCP_VER2 0x260
|
|
|
|
/* Descriptor mode bits */
|
|
#define CPDMA_DESC_SOP BIT(31)
|
|
#define CPDMA_DESC_EOP BIT(30)
|
|
#define CPDMA_DESC_OWNER BIT(29)
|
|
#define CPDMA_DESC_EOQ BIT(28)
|
|
|
|
/*
|
|
* This timeout definition is a worst-case ultra defensive measure against
|
|
* unexpected controller lock ups. Ideally, we should never ever hit this
|
|
* scenario in practice.
|
|
*/
|
|
#define MDIO_TIMEOUT 100 /* msecs */
|
|
#define CPDMA_TIMEOUT 100 /* msecs */
|
|
|
|
struct cpsw_mdio_regs {
|
|
u32 version;
|
|
u32 control;
|
|
#define CONTROL_IDLE BIT(31)
|
|
#define CONTROL_ENABLE BIT(30)
|
|
|
|
u32 alive;
|
|
u32 link;
|
|
u32 linkintraw;
|
|
u32 linkintmasked;
|
|
u32 __reserved_0[2];
|
|
u32 userintraw;
|
|
u32 userintmasked;
|
|
u32 userintmaskset;
|
|
u32 userintmaskclr;
|
|
u32 __reserved_1[20];
|
|
|
|
struct {
|
|
u32 access;
|
|
u32 physel;
|
|
#define USERACCESS_GO BIT(31)
|
|
#define USERACCESS_WRITE BIT(30)
|
|
#define USERACCESS_ACK BIT(29)
|
|
#define USERACCESS_READ (0)
|
|
#define USERACCESS_DATA (0xffff)
|
|
} user[0];
|
|
};
|
|
|
|
struct cpsw_regs {
|
|
u32 id_ver;
|
|
u32 control;
|
|
u32 soft_reset;
|
|
u32 stat_port_en;
|
|
u32 ptype;
|
|
};
|
|
|
|
struct cpsw_slave_regs {
|
|
u32 max_blks;
|
|
u32 blk_cnt;
|
|
u32 flow_thresh;
|
|
u32 port_vlan;
|
|
u32 tx_pri_map;
|
|
#ifdef CONFIG_AM33XX
|
|
u32 gap_thresh;
|
|
#elif defined(CONFIG_TI814X)
|
|
u32 ts_ctl;
|
|
u32 ts_seq_ltype;
|
|
u32 ts_vlan;
|
|
#endif
|
|
u32 sa_lo;
|
|
u32 sa_hi;
|
|
};
|
|
|
|
struct cpsw_host_regs {
|
|
u32 max_blks;
|
|
u32 blk_cnt;
|
|
u32 flow_thresh;
|
|
u32 port_vlan;
|
|
u32 tx_pri_map;
|
|
u32 cpdma_tx_pri_map;
|
|
u32 cpdma_rx_chan_map;
|
|
};
|
|
|
|
struct cpsw_sliver_regs {
|
|
u32 id_ver;
|
|
u32 mac_control;
|
|
u32 mac_status;
|
|
u32 soft_reset;
|
|
u32 rx_maxlen;
|
|
u32 __reserved_0;
|
|
u32 rx_pause;
|
|
u32 tx_pause;
|
|
u32 __reserved_1;
|
|
u32 rx_pri_map;
|
|
};
|
|
|
|
#define ALE_ENTRY_BITS 68
|
|
#define ALE_ENTRY_WORDS DIV_ROUND_UP(ALE_ENTRY_BITS, 32)
|
|
|
|
/* ALE Registers */
|
|
#define ALE_CONTROL 0x08
|
|
#define ALE_UNKNOWNVLAN 0x18
|
|
#define ALE_TABLE_CONTROL 0x20
|
|
#define ALE_TABLE 0x34
|
|
#define ALE_PORTCTL 0x40
|
|
|
|
#define ALE_TABLE_WRITE BIT(31)
|
|
|
|
#define ALE_TYPE_FREE 0
|
|
#define ALE_TYPE_ADDR 1
|
|
#define ALE_TYPE_VLAN 2
|
|
#define ALE_TYPE_VLAN_ADDR 3
|
|
|
|
#define ALE_UCAST_PERSISTANT 0
|
|
#define ALE_UCAST_UNTOUCHED 1
|
|
#define ALE_UCAST_OUI 2
|
|
#define ALE_UCAST_TOUCHED 3
|
|
|
|
#define ALE_MCAST_FWD 0
|
|
#define ALE_MCAST_BLOCK_LEARN_FWD 1
|
|
#define ALE_MCAST_FWD_LEARN 2
|
|
#define ALE_MCAST_FWD_2 3
|
|
|
|
enum cpsw_ale_port_state {
|
|
ALE_PORT_STATE_DISABLE = 0x00,
|
|
ALE_PORT_STATE_BLOCK = 0x01,
|
|
ALE_PORT_STATE_LEARN = 0x02,
|
|
ALE_PORT_STATE_FORWARD = 0x03,
|
|
};
|
|
|
|
/* ALE unicast entry flags - passed into cpsw_ale_add_ucast() */
|
|
#define ALE_SECURE 1
|
|
#define ALE_BLOCKED 2
|
|
|
|
struct cpsw_slave {
|
|
struct cpsw_slave_regs *regs;
|
|
struct cpsw_sliver_regs *sliver;
|
|
int slave_num;
|
|
u32 mac_control;
|
|
struct cpsw_slave_data *data;
|
|
};
|
|
|
|
struct cpdma_desc {
|
|
/* hardware fields */
|
|
u32 hw_next;
|
|
u32 hw_buffer;
|
|
u32 hw_len;
|
|
u32 hw_mode;
|
|
/* software fields */
|
|
u32 sw_buffer;
|
|
u32 sw_len;
|
|
};
|
|
|
|
struct cpdma_chan {
|
|
struct cpdma_desc *head, *tail;
|
|
void *hdp, *cp, *rxfree;
|
|
};
|
|
|
|
/* AM33xx SoC specific definitions for the CONTROL port */
|
|
#define AM33XX_GMII_SEL_MODE_MII 0
|
|
#define AM33XX_GMII_SEL_MODE_RMII 1
|
|
#define AM33XX_GMII_SEL_MODE_RGMII 2
|
|
|
|
#define AM33XX_GMII_SEL_RGMII1_IDMODE BIT(4)
|
|
#define AM33XX_GMII_SEL_RGMII2_IDMODE BIT(5)
|
|
#define AM33XX_GMII_SEL_RMII1_IO_CLK_EN BIT(6)
|
|
#define AM33XX_GMII_SEL_RMII2_IO_CLK_EN BIT(7)
|
|
|
|
#define GMII_SEL_MODE_MASK 0x3
|
|
|
|
#define desc_write(desc, fld, val) __raw_writel((u32)(val), &(desc)->fld)
|
|
#define desc_read(desc, fld) __raw_readl(&(desc)->fld)
|
|
#define desc_read_ptr(desc, fld) ((void *)__raw_readl(&(desc)->fld))
|
|
|
|
#define chan_write(chan, fld, val) __raw_writel((u32)(val), (chan)->fld)
|
|
#define chan_read(chan, fld) __raw_readl((chan)->fld)
|
|
#define chan_read_ptr(chan, fld) ((void *)__raw_readl((chan)->fld))
|
|
|
|
#define for_active_slave(slave, priv) \
|
|
slave = (priv)->slaves + (priv)->data.active_slave; if (slave)
|
|
#define for_each_slave(slave, priv) \
|
|
for (slave = (priv)->slaves; slave != (priv)->slaves + \
|
|
(priv)->data.slaves; slave++)
|
|
|
|
struct cpsw_priv {
|
|
#ifdef CONFIG_DM_ETH
|
|
struct udevice *dev;
|
|
#else
|
|
struct eth_device *dev;
|
|
#endif
|
|
struct cpsw_platform_data data;
|
|
int host_port;
|
|
|
|
struct cpsw_regs *regs;
|
|
void *dma_regs;
|
|
struct cpsw_host_regs *host_port_regs;
|
|
void *ale_regs;
|
|
|
|
struct cpdma_desc *descs;
|
|
struct cpdma_desc *desc_free;
|
|
struct cpdma_chan rx_chan, tx_chan;
|
|
|
|
struct cpsw_slave *slaves;
|
|
struct phy_device *phydev;
|
|
struct mii_dev *bus;
|
|
|
|
u32 phy_mask;
|
|
};
|
|
|
|
static inline int cpsw_ale_get_field(u32 *ale_entry, u32 start, u32 bits)
|
|
{
|
|
int idx;
|
|
|
|
idx = start / 32;
|
|
start -= idx * 32;
|
|
idx = 2 - idx; /* flip */
|
|
return (ale_entry[idx] >> start) & BITMASK(bits);
|
|
}
|
|
|
|
static inline void cpsw_ale_set_field(u32 *ale_entry, u32 start, u32 bits,
|
|
u32 value)
|
|
{
|
|
int idx;
|
|
|
|
value &= BITMASK(bits);
|
|
idx = start / 32;
|
|
start -= idx * 32;
|
|
idx = 2 - idx; /* flip */
|
|
ale_entry[idx] &= ~(BITMASK(bits) << start);
|
|
ale_entry[idx] |= (value << start);
|
|
}
|
|
|
|
#define DEFINE_ALE_FIELD(name, start, bits) \
|
|
static inline int cpsw_ale_get_##name(u32 *ale_entry) \
|
|
{ \
|
|
return cpsw_ale_get_field(ale_entry, start, bits); \
|
|
} \
|
|
static inline void cpsw_ale_set_##name(u32 *ale_entry, u32 value) \
|
|
{ \
|
|
cpsw_ale_set_field(ale_entry, start, bits, value); \
|
|
}
|
|
|
|
DEFINE_ALE_FIELD(entry_type, 60, 2)
|
|
DEFINE_ALE_FIELD(mcast_state, 62, 2)
|
|
DEFINE_ALE_FIELD(port_mask, 66, 3)
|
|
DEFINE_ALE_FIELD(ucast_type, 62, 2)
|
|
DEFINE_ALE_FIELD(port_num, 66, 2)
|
|
DEFINE_ALE_FIELD(blocked, 65, 1)
|
|
DEFINE_ALE_FIELD(secure, 64, 1)
|
|
DEFINE_ALE_FIELD(mcast, 40, 1)
|
|
|
|
/* The MAC address field in the ALE entry cannot be macroized as above */
|
|
static inline void cpsw_ale_get_addr(u32 *ale_entry, u8 *addr)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 6; i++)
|
|
addr[i] = cpsw_ale_get_field(ale_entry, 40 - 8*i, 8);
|
|
}
|
|
|
|
static inline void cpsw_ale_set_addr(u32 *ale_entry, const u8 *addr)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 6; i++)
|
|
cpsw_ale_set_field(ale_entry, 40 - 8*i, 8, addr[i]);
|
|
}
|
|
|
|
static int cpsw_ale_read(struct cpsw_priv *priv, int idx, u32 *ale_entry)
|
|
{
|
|
int i;
|
|
|
|
__raw_writel(idx, priv->ale_regs + ALE_TABLE_CONTROL);
|
|
|
|
for (i = 0; i < ALE_ENTRY_WORDS; i++)
|
|
ale_entry[i] = __raw_readl(priv->ale_regs + ALE_TABLE + 4 * i);
|
|
|
|
return idx;
|
|
}
|
|
|
|
static int cpsw_ale_write(struct cpsw_priv *priv, int idx, u32 *ale_entry)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ALE_ENTRY_WORDS; i++)
|
|
__raw_writel(ale_entry[i], priv->ale_regs + ALE_TABLE + 4 * i);
|
|
|
|
__raw_writel(idx | ALE_TABLE_WRITE, priv->ale_regs + ALE_TABLE_CONTROL);
|
|
|
|
return idx;
|
|
}
|
|
|
|
static int cpsw_ale_match_addr(struct cpsw_priv *priv, const u8 *addr)
|
|
{
|
|
u32 ale_entry[ALE_ENTRY_WORDS];
|
|
int type, idx;
|
|
|
|
for (idx = 0; idx < priv->data.ale_entries; idx++) {
|
|
u8 entry_addr[6];
|
|
|
|
cpsw_ale_read(priv, idx, ale_entry);
|
|
type = cpsw_ale_get_entry_type(ale_entry);
|
|
if (type != ALE_TYPE_ADDR && type != ALE_TYPE_VLAN_ADDR)
|
|
continue;
|
|
cpsw_ale_get_addr(ale_entry, entry_addr);
|
|
if (memcmp(entry_addr, addr, 6) == 0)
|
|
return idx;
|
|
}
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int cpsw_ale_match_free(struct cpsw_priv *priv)
|
|
{
|
|
u32 ale_entry[ALE_ENTRY_WORDS];
|
|
int type, idx;
|
|
|
|
for (idx = 0; idx < priv->data.ale_entries; idx++) {
|
|
cpsw_ale_read(priv, idx, ale_entry);
|
|
type = cpsw_ale_get_entry_type(ale_entry);
|
|
if (type == ALE_TYPE_FREE)
|
|
return idx;
|
|
}
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int cpsw_ale_find_ageable(struct cpsw_priv *priv)
|
|
{
|
|
u32 ale_entry[ALE_ENTRY_WORDS];
|
|
int type, idx;
|
|
|
|
for (idx = 0; idx < priv->data.ale_entries; idx++) {
|
|
cpsw_ale_read(priv, idx, ale_entry);
|
|
type = cpsw_ale_get_entry_type(ale_entry);
|
|
if (type != ALE_TYPE_ADDR && type != ALE_TYPE_VLAN_ADDR)
|
|
continue;
|
|
if (cpsw_ale_get_mcast(ale_entry))
|
|
continue;
|
|
type = cpsw_ale_get_ucast_type(ale_entry);
|
|
if (type != ALE_UCAST_PERSISTANT &&
|
|
type != ALE_UCAST_OUI)
|
|
return idx;
|
|
}
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int cpsw_ale_add_ucast(struct cpsw_priv *priv, const u8 *addr,
|
|
int port, int flags)
|
|
{
|
|
u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0};
|
|
int idx;
|
|
|
|
cpsw_ale_set_entry_type(ale_entry, ALE_TYPE_ADDR);
|
|
cpsw_ale_set_addr(ale_entry, addr);
|
|
cpsw_ale_set_ucast_type(ale_entry, ALE_UCAST_PERSISTANT);
|
|
cpsw_ale_set_secure(ale_entry, (flags & ALE_SECURE) ? 1 : 0);
|
|
cpsw_ale_set_blocked(ale_entry, (flags & ALE_BLOCKED) ? 1 : 0);
|
|
cpsw_ale_set_port_num(ale_entry, port);
|
|
|
|
idx = cpsw_ale_match_addr(priv, addr);
|
|
if (idx < 0)
|
|
idx = cpsw_ale_match_free(priv);
|
|
if (idx < 0)
|
|
idx = cpsw_ale_find_ageable(priv);
|
|
if (idx < 0)
|
|
return -ENOMEM;
|
|
|
|
cpsw_ale_write(priv, idx, ale_entry);
|
|
return 0;
|
|
}
|
|
|
|
static int cpsw_ale_add_mcast(struct cpsw_priv *priv, const u8 *addr,
|
|
int port_mask)
|
|
{
|
|
u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0};
|
|
int idx, mask;
|
|
|
|
idx = cpsw_ale_match_addr(priv, addr);
|
|
if (idx >= 0)
|
|
cpsw_ale_read(priv, idx, ale_entry);
|
|
|
|
cpsw_ale_set_entry_type(ale_entry, ALE_TYPE_ADDR);
|
|
cpsw_ale_set_addr(ale_entry, addr);
|
|
cpsw_ale_set_mcast_state(ale_entry, ALE_MCAST_FWD_2);
|
|
|
|
mask = cpsw_ale_get_port_mask(ale_entry);
|
|
port_mask |= mask;
|
|
cpsw_ale_set_port_mask(ale_entry, port_mask);
|
|
|
|
if (idx < 0)
|
|
idx = cpsw_ale_match_free(priv);
|
|
if (idx < 0)
|
|
idx = cpsw_ale_find_ageable(priv);
|
|
if (idx < 0)
|
|
return -ENOMEM;
|
|
|
|
cpsw_ale_write(priv, idx, ale_entry);
|
|
return 0;
|
|
}
|
|
|
|
static inline void cpsw_ale_control(struct cpsw_priv *priv, int bit, int val)
|
|
{
|
|
u32 tmp, mask = BIT(bit);
|
|
|
|
tmp = __raw_readl(priv->ale_regs + ALE_CONTROL);
|
|
tmp &= ~mask;
|
|
tmp |= val ? mask : 0;
|
|
__raw_writel(tmp, priv->ale_regs + ALE_CONTROL);
|
|
}
|
|
|
|
#define cpsw_ale_enable(priv, val) cpsw_ale_control(priv, 31, val)
|
|
#define cpsw_ale_clear(priv, val) cpsw_ale_control(priv, 30, val)
|
|
#define cpsw_ale_vlan_aware(priv, val) cpsw_ale_control(priv, 2, val)
|
|
|
|
static inline void cpsw_ale_port_state(struct cpsw_priv *priv, int port,
|
|
int val)
|
|
{
|
|
int offset = ALE_PORTCTL + 4 * port;
|
|
u32 tmp, mask = 0x3;
|
|
|
|
tmp = __raw_readl(priv->ale_regs + offset);
|
|
tmp &= ~mask;
|
|
tmp |= val & mask;
|
|
__raw_writel(tmp, priv->ale_regs + offset);
|
|
}
|
|
|
|
static struct cpsw_mdio_regs *mdio_regs;
|
|
|
|
/* wait until hardware is ready for another user access */
|
|
static inline u32 wait_for_user_access(void)
|
|
{
|
|
u32 reg = 0;
|
|
int timeout = MDIO_TIMEOUT;
|
|
|
|
while (timeout-- &&
|
|
((reg = __raw_readl(&mdio_regs->user[0].access)) & USERACCESS_GO))
|
|
udelay(10);
|
|
|
|
if (timeout == -1) {
|
|
printf("wait_for_user_access Timeout\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
return reg;
|
|
}
|
|
|
|
/* wait until hardware state machine is idle */
|
|
static inline void wait_for_idle(void)
|
|
{
|
|
int timeout = MDIO_TIMEOUT;
|
|
|
|
while (timeout-- &&
|
|
((__raw_readl(&mdio_regs->control) & CONTROL_IDLE) == 0))
|
|
udelay(10);
|
|
|
|
if (timeout == -1)
|
|
printf("wait_for_idle Timeout\n");
|
|
}
|
|
|
|
static int cpsw_mdio_read(struct mii_dev *bus, int phy_id,
|
|
int dev_addr, int phy_reg)
|
|
{
|
|
int data;
|
|
u32 reg;
|
|
|
|
if (phy_reg & ~PHY_REG_MASK || phy_id & ~PHY_ID_MASK)
|
|
return -EINVAL;
|
|
|
|
wait_for_user_access();
|
|
reg = (USERACCESS_GO | USERACCESS_READ | (phy_reg << 21) |
|
|
(phy_id << 16));
|
|
__raw_writel(reg, &mdio_regs->user[0].access);
|
|
reg = wait_for_user_access();
|
|
|
|
data = (reg & USERACCESS_ACK) ? (reg & USERACCESS_DATA) : -1;
|
|
return data;
|
|
}
|
|
|
|
static int cpsw_mdio_write(struct mii_dev *bus, int phy_id, int dev_addr,
|
|
int phy_reg, u16 data)
|
|
{
|
|
u32 reg;
|
|
|
|
if (phy_reg & ~PHY_REG_MASK || phy_id & ~PHY_ID_MASK)
|
|
return -EINVAL;
|
|
|
|
wait_for_user_access();
|
|
reg = (USERACCESS_GO | USERACCESS_WRITE | (phy_reg << 21) |
|
|
(phy_id << 16) | (data & USERACCESS_DATA));
|
|
__raw_writel(reg, &mdio_regs->user[0].access);
|
|
wait_for_user_access();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void cpsw_mdio_init(const char *name, u32 mdio_base, u32 div)
|
|
{
|
|
struct mii_dev *bus = mdio_alloc();
|
|
|
|
mdio_regs = (struct cpsw_mdio_regs *)mdio_base;
|
|
|
|
/* set enable and clock divider */
|
|
__raw_writel(div | CONTROL_ENABLE, &mdio_regs->control);
|
|
|
|
/*
|
|
* wait for scan logic to settle:
|
|
* the scan time consists of (a) a large fixed component, and (b) a
|
|
* small component that varies with the mii bus frequency. These
|
|
* were estimated using measurements at 1.1 and 2.2 MHz on tnetv107x
|
|
* silicon. Since the effect of (b) was found to be largely
|
|
* negligible, we keep things simple here.
|
|
*/
|
|
udelay(1000);
|
|
|
|
bus->read = cpsw_mdio_read;
|
|
bus->write = cpsw_mdio_write;
|
|
strcpy(bus->name, name);
|
|
|
|
mdio_register(bus);
|
|
}
|
|
|
|
/* Set a self-clearing bit in a register, and wait for it to clear */
|
|
static inline void setbit_and_wait_for_clear32(void *addr)
|
|
{
|
|
__raw_writel(CLEAR_BIT, addr);
|
|
while (__raw_readl(addr) & CLEAR_BIT)
|
|
;
|
|
}
|
|
|
|
#define mac_hi(mac) (((mac)[0] << 0) | ((mac)[1] << 8) | \
|
|
((mac)[2] << 16) | ((mac)[3] << 24))
|
|
#define mac_lo(mac) (((mac)[4] << 0) | ((mac)[5] << 8))
|
|
|
|
static void cpsw_set_slave_mac(struct cpsw_slave *slave,
|
|
struct cpsw_priv *priv)
|
|
{
|
|
#ifdef CONFIG_DM_ETH
|
|
struct eth_pdata *pdata = dev_get_platdata(priv->dev);
|
|
|
|
writel(mac_hi(pdata->enetaddr), &slave->regs->sa_hi);
|
|
writel(mac_lo(pdata->enetaddr), &slave->regs->sa_lo);
|
|
#else
|
|
__raw_writel(mac_hi(priv->dev->enetaddr), &slave->regs->sa_hi);
|
|
__raw_writel(mac_lo(priv->dev->enetaddr), &slave->regs->sa_lo);
|
|
#endif
|
|
}
|
|
|
|
static int cpsw_slave_update_link(struct cpsw_slave *slave,
|
|
struct cpsw_priv *priv, int *link)
|
|
{
|
|
struct phy_device *phy;
|
|
u32 mac_control = 0;
|
|
int ret = -ENODEV;
|
|
|
|
phy = priv->phydev;
|
|
if (!phy)
|
|
goto out;
|
|
|
|
ret = phy_startup(phy);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (link)
|
|
*link = phy->link;
|
|
|
|
if (phy->link) { /* link up */
|
|
mac_control = priv->data.mac_control;
|
|
if (phy->speed == 1000)
|
|
mac_control |= GIGABITEN;
|
|
if (phy->duplex == DUPLEX_FULL)
|
|
mac_control |= FULLDUPLEXEN;
|
|
if (phy->speed == 100)
|
|
mac_control |= MIIEN;
|
|
}
|
|
|
|
if (mac_control == slave->mac_control)
|
|
goto out;
|
|
|
|
if (mac_control) {
|
|
printf("link up on port %d, speed %d, %s duplex\n",
|
|
slave->slave_num, phy->speed,
|
|
(phy->duplex == DUPLEX_FULL) ? "full" : "half");
|
|
} else {
|
|
printf("link down on port %d\n", slave->slave_num);
|
|
}
|
|
|
|
__raw_writel(mac_control, &slave->sliver->mac_control);
|
|
slave->mac_control = mac_control;
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static int cpsw_update_link(struct cpsw_priv *priv)
|
|
{
|
|
int ret = -ENODEV;
|
|
struct cpsw_slave *slave;
|
|
|
|
for_active_slave(slave, priv)
|
|
ret = cpsw_slave_update_link(slave, priv, NULL);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u32 cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
|
|
{
|
|
if (priv->host_port == 0)
|
|
return slave_num + 1;
|
|
else
|
|
return slave_num;
|
|
}
|
|
|
|
static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv)
|
|
{
|
|
u32 slave_port;
|
|
|
|
setbit_and_wait_for_clear32(&slave->sliver->soft_reset);
|
|
|
|
/* setup priority mapping */
|
|
__raw_writel(0x76543210, &slave->sliver->rx_pri_map);
|
|
__raw_writel(0x33221100, &slave->regs->tx_pri_map);
|
|
|
|
/* setup max packet size, and mac address */
|
|
__raw_writel(PKT_MAX, &slave->sliver->rx_maxlen);
|
|
cpsw_set_slave_mac(slave, priv);
|
|
|
|
slave->mac_control = 0; /* no link yet */
|
|
|
|
/* enable forwarding */
|
|
slave_port = cpsw_get_slave_port(priv, slave->slave_num);
|
|
cpsw_ale_port_state(priv, slave_port, ALE_PORT_STATE_FORWARD);
|
|
|
|
cpsw_ale_add_mcast(priv, net_bcast_ethaddr, 1 << slave_port);
|
|
|
|
priv->phy_mask |= 1 << slave->data->phy_addr;
|
|
}
|
|
|
|
static struct cpdma_desc *cpdma_desc_alloc(struct cpsw_priv *priv)
|
|
{
|
|
struct cpdma_desc *desc = priv->desc_free;
|
|
|
|
if (desc)
|
|
priv->desc_free = desc_read_ptr(desc, hw_next);
|
|
return desc;
|
|
}
|
|
|
|
static void cpdma_desc_free(struct cpsw_priv *priv, struct cpdma_desc *desc)
|
|
{
|
|
if (desc) {
|
|
desc_write(desc, hw_next, priv->desc_free);
|
|
priv->desc_free = desc;
|
|
}
|
|
}
|
|
|
|
static int cpdma_submit(struct cpsw_priv *priv, struct cpdma_chan *chan,
|
|
void *buffer, int len)
|
|
{
|
|
struct cpdma_desc *desc, *prev;
|
|
u32 mode;
|
|
|
|
desc = cpdma_desc_alloc(priv);
|
|
if (!desc)
|
|
return -ENOMEM;
|
|
|
|
if (len < PKT_MIN)
|
|
len = PKT_MIN;
|
|
|
|
mode = CPDMA_DESC_OWNER | CPDMA_DESC_SOP | CPDMA_DESC_EOP;
|
|
|
|
desc_write(desc, hw_next, 0);
|
|
desc_write(desc, hw_buffer, buffer);
|
|
desc_write(desc, hw_len, len);
|
|
desc_write(desc, hw_mode, mode | len);
|
|
desc_write(desc, sw_buffer, buffer);
|
|
desc_write(desc, sw_len, len);
|
|
|
|
if (!chan->head) {
|
|
/* simple case - first packet enqueued */
|
|
chan->head = desc;
|
|
chan->tail = desc;
|
|
chan_write(chan, hdp, desc);
|
|
goto done;
|
|
}
|
|
|
|
/* not the first packet - enqueue at the tail */
|
|
prev = chan->tail;
|
|
desc_write(prev, hw_next, desc);
|
|
chan->tail = desc;
|
|
|
|
/* next check if EOQ has been triggered already */
|
|
if (desc_read(prev, hw_mode) & CPDMA_DESC_EOQ)
|
|
chan_write(chan, hdp, desc);
|
|
|
|
done:
|
|
if (chan->rxfree)
|
|
chan_write(chan, rxfree, 1);
|
|
return 0;
|
|
}
|
|
|
|
static int cpdma_process(struct cpsw_priv *priv, struct cpdma_chan *chan,
|
|
void **buffer, int *len)
|
|
{
|
|
struct cpdma_desc *desc = chan->head;
|
|
u32 status;
|
|
|
|
if (!desc)
|
|
return -ENOENT;
|
|
|
|
status = desc_read(desc, hw_mode);
|
|
|
|
if (len)
|
|
*len = status & 0x7ff;
|
|
|
|
if (buffer)
|
|
*buffer = desc_read_ptr(desc, sw_buffer);
|
|
|
|
if (status & CPDMA_DESC_OWNER) {
|
|
if (chan_read(chan, hdp) == 0) {
|
|
if (desc_read(desc, hw_mode) & CPDMA_DESC_OWNER)
|
|
chan_write(chan, hdp, desc);
|
|
}
|
|
|
|
return -EBUSY;
|
|
}
|
|
|
|
chan->head = desc_read_ptr(desc, hw_next);
|
|
chan_write(chan, cp, desc);
|
|
|
|
cpdma_desc_free(priv, desc);
|
|
return 0;
|
|
}
|
|
|
|
static int _cpsw_init(struct cpsw_priv *priv, u8 *enetaddr)
|
|
{
|
|
struct cpsw_slave *slave;
|
|
int i, ret;
|
|
|
|
/* soft reset the controller and initialize priv */
|
|
setbit_and_wait_for_clear32(&priv->regs->soft_reset);
|
|
|
|
/* initialize and reset the address lookup engine */
|
|
cpsw_ale_enable(priv, 1);
|
|
cpsw_ale_clear(priv, 1);
|
|
cpsw_ale_vlan_aware(priv, 0); /* vlan unaware mode */
|
|
|
|
/* setup host port priority mapping */
|
|
__raw_writel(0x76543210, &priv->host_port_regs->cpdma_tx_pri_map);
|
|
__raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map);
|
|
|
|
/* disable priority elevation and enable statistics on all ports */
|
|
__raw_writel(0, &priv->regs->ptype);
|
|
|
|
/* enable statistics collection only on the host port */
|
|
__raw_writel(BIT(priv->host_port), &priv->regs->stat_port_en);
|
|
__raw_writel(0x7, &priv->regs->stat_port_en);
|
|
|
|
cpsw_ale_port_state(priv, priv->host_port, ALE_PORT_STATE_FORWARD);
|
|
|
|
cpsw_ale_add_ucast(priv, enetaddr, priv->host_port, ALE_SECURE);
|
|
cpsw_ale_add_mcast(priv, net_bcast_ethaddr, 1 << priv->host_port);
|
|
|
|
for_active_slave(slave, priv)
|
|
cpsw_slave_init(slave, priv);
|
|
|
|
ret = cpsw_update_link(priv);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/* init descriptor pool */
|
|
for (i = 0; i < NUM_DESCS; i++) {
|
|
desc_write(&priv->descs[i], hw_next,
|
|
(i == (NUM_DESCS - 1)) ? 0 : &priv->descs[i+1]);
|
|
}
|
|
priv->desc_free = &priv->descs[0];
|
|
|
|
/* initialize channels */
|
|
if (priv->data.version == CPSW_CTRL_VERSION_2) {
|
|
memset(&priv->rx_chan, 0, sizeof(struct cpdma_chan));
|
|
priv->rx_chan.hdp = priv->dma_regs + CPDMA_RXHDP_VER2;
|
|
priv->rx_chan.cp = priv->dma_regs + CPDMA_RXCP_VER2;
|
|
priv->rx_chan.rxfree = priv->dma_regs + CPDMA_RXFREE;
|
|
|
|
memset(&priv->tx_chan, 0, sizeof(struct cpdma_chan));
|
|
priv->tx_chan.hdp = priv->dma_regs + CPDMA_TXHDP_VER2;
|
|
priv->tx_chan.cp = priv->dma_regs + CPDMA_TXCP_VER2;
|
|
} else {
|
|
memset(&priv->rx_chan, 0, sizeof(struct cpdma_chan));
|
|
priv->rx_chan.hdp = priv->dma_regs + CPDMA_RXHDP_VER1;
|
|
priv->rx_chan.cp = priv->dma_regs + CPDMA_RXCP_VER1;
|
|
priv->rx_chan.rxfree = priv->dma_regs + CPDMA_RXFREE;
|
|
|
|
memset(&priv->tx_chan, 0, sizeof(struct cpdma_chan));
|
|
priv->tx_chan.hdp = priv->dma_regs + CPDMA_TXHDP_VER1;
|
|
priv->tx_chan.cp = priv->dma_regs + CPDMA_TXCP_VER1;
|
|
}
|
|
|
|
/* clear dma state */
|
|
setbit_and_wait_for_clear32(priv->dma_regs + CPDMA_SOFTRESET);
|
|
|
|
if (priv->data.version == CPSW_CTRL_VERSION_2) {
|
|
for (i = 0; i < priv->data.channels; i++) {
|
|
__raw_writel(0, priv->dma_regs + CPDMA_RXHDP_VER2 + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_RXFREE + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_RXCP_VER2 + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_TXHDP_VER2 + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_TXCP_VER2 + 4
|
|
* i);
|
|
}
|
|
} else {
|
|
for (i = 0; i < priv->data.channels; i++) {
|
|
__raw_writel(0, priv->dma_regs + CPDMA_RXHDP_VER1 + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_RXFREE + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_RXCP_VER1 + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_TXHDP_VER1 + 4
|
|
* i);
|
|
__raw_writel(0, priv->dma_regs + CPDMA_TXCP_VER1 + 4
|
|
* i);
|
|
|
|
}
|
|
}
|
|
|
|
__raw_writel(1, priv->dma_regs + CPDMA_TXCONTROL);
|
|
__raw_writel(1, priv->dma_regs + CPDMA_RXCONTROL);
|
|
|
|
/* submit rx descs */
|
|
for (i = 0; i < PKTBUFSRX; i++) {
|
|
ret = cpdma_submit(priv, &priv->rx_chan, net_rx_packets[i],
|
|
PKTSIZE);
|
|
if (ret < 0) {
|
|
printf("error %d submitting rx desc\n", ret);
|
|
break;
|
|
}
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static void _cpsw_halt(struct cpsw_priv *priv)
|
|
{
|
|
writel(0, priv->dma_regs + CPDMA_TXCONTROL);
|
|
writel(0, priv->dma_regs + CPDMA_RXCONTROL);
|
|
|
|
/* soft reset the controller and initialize priv */
|
|
setbit_and_wait_for_clear32(&priv->regs->soft_reset);
|
|
|
|
/* clear dma state */
|
|
setbit_and_wait_for_clear32(priv->dma_regs + CPDMA_SOFTRESET);
|
|
|
|
}
|
|
|
|
static int _cpsw_send(struct cpsw_priv *priv, void *packet, int length)
|
|
{
|
|
void *buffer;
|
|
int len;
|
|
int timeout = CPDMA_TIMEOUT;
|
|
|
|
flush_dcache_range((unsigned long)packet,
|
|
(unsigned long)packet + ALIGN(length, PKTALIGN));
|
|
|
|
/* first reap completed packets */
|
|
while (timeout-- &&
|
|
(cpdma_process(priv, &priv->tx_chan, &buffer, &len) >= 0))
|
|
;
|
|
|
|
if (timeout == -1) {
|
|
printf("cpdma_process timeout\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
return cpdma_submit(priv, &priv->tx_chan, packet, length);
|
|
}
|
|
|
|
static int _cpsw_recv(struct cpsw_priv *priv, uchar **pkt)
|
|
{
|
|
void *buffer;
|
|
int len;
|
|
int ret = -EAGAIN;
|
|
|
|
ret = cpdma_process(priv, &priv->rx_chan, &buffer, &len);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
invalidate_dcache_range((unsigned long)buffer,
|
|
(unsigned long)buffer + PKTSIZE_ALIGN);
|
|
*pkt = buffer;
|
|
|
|
return len;
|
|
}
|
|
|
|
static void cpsw_slave_setup(struct cpsw_slave *slave, int slave_num,
|
|
struct cpsw_priv *priv)
|
|
{
|
|
void *regs = priv->regs;
|
|
struct cpsw_slave_data *data = priv->data.slave_data + slave_num;
|
|
slave->slave_num = slave_num;
|
|
slave->data = data;
|
|
slave->regs = regs + data->slave_reg_ofs;
|
|
slave->sliver = regs + data->sliver_reg_ofs;
|
|
}
|
|
|
|
static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave)
|
|
{
|
|
struct phy_device *phydev;
|
|
u32 supported = PHY_GBIT_FEATURES;
|
|
|
|
phydev = phy_connect(priv->bus,
|
|
slave->data->phy_addr,
|
|
priv->dev,
|
|
slave->data->phy_if);
|
|
|
|
if (!phydev)
|
|
return -1;
|
|
|
|
phydev->supported &= supported;
|
|
phydev->advertising = phydev->supported;
|
|
|
|
#ifdef CONFIG_DM_ETH
|
|
if (slave->data->phy_of_handle)
|
|
dev_set_of_offset(phydev->dev, slave->data->phy_of_handle);
|
|
#endif
|
|
|
|
priv->phydev = phydev;
|
|
phy_config(phydev);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int _cpsw_register(struct cpsw_priv *priv)
|
|
{
|
|
struct cpsw_slave *slave;
|
|
struct cpsw_platform_data *data = &priv->data;
|
|
void *regs = (void *)data->cpsw_base;
|
|
|
|
priv->slaves = malloc(sizeof(struct cpsw_slave) * data->slaves);
|
|
if (!priv->slaves) {
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv->host_port = data->host_port_num;
|
|
priv->regs = regs;
|
|
priv->host_port_regs = regs + data->host_port_reg_ofs;
|
|
priv->dma_regs = regs + data->cpdma_reg_ofs;
|
|
priv->ale_regs = regs + data->ale_reg_ofs;
|
|
priv->descs = (void *)regs + data->bd_ram_ofs;
|
|
|
|
int idx = 0;
|
|
|
|
for_each_slave(slave, priv) {
|
|
cpsw_slave_setup(slave, idx, priv);
|
|
idx = idx + 1;
|
|
}
|
|
|
|
cpsw_mdio_init(priv->dev->name, data->mdio_base, data->mdio_div);
|
|
priv->bus = miiphy_get_dev_by_name(priv->dev->name);
|
|
for_active_slave(slave, priv)
|
|
cpsw_phy_init(priv, slave);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifndef CONFIG_DM_ETH
|
|
static int cpsw_init(struct eth_device *dev, bd_t *bis)
|
|
{
|
|
struct cpsw_priv *priv = dev->priv;
|
|
|
|
return _cpsw_init(priv, dev->enetaddr);
|
|
}
|
|
|
|
static void cpsw_halt(struct eth_device *dev)
|
|
{
|
|
struct cpsw_priv *priv = dev->priv;
|
|
|
|
return _cpsw_halt(priv);
|
|
}
|
|
|
|
static int cpsw_send(struct eth_device *dev, void *packet, int length)
|
|
{
|
|
struct cpsw_priv *priv = dev->priv;
|
|
|
|
return _cpsw_send(priv, packet, length);
|
|
}
|
|
|
|
static int cpsw_recv(struct eth_device *dev)
|
|
{
|
|
struct cpsw_priv *priv = dev->priv;
|
|
uchar *pkt = NULL;
|
|
int len;
|
|
|
|
len = _cpsw_recv(priv, &pkt);
|
|
|
|
if (len > 0) {
|
|
net_process_received_packet(pkt, len);
|
|
cpdma_submit(priv, &priv->rx_chan, pkt, PKTSIZE);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
int cpsw_register(struct cpsw_platform_data *data)
|
|
{
|
|
struct cpsw_priv *priv;
|
|
struct eth_device *dev;
|
|
int ret;
|
|
|
|
dev = calloc(sizeof(*dev), 1);
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
priv = calloc(sizeof(*priv), 1);
|
|
if (!priv) {
|
|
free(dev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv->dev = dev;
|
|
priv->data = *data;
|
|
|
|
strcpy(dev->name, "cpsw");
|
|
dev->iobase = 0;
|
|
dev->init = cpsw_init;
|
|
dev->halt = cpsw_halt;
|
|
dev->send = cpsw_send;
|
|
dev->recv = cpsw_recv;
|
|
dev->priv = priv;
|
|
|
|
eth_register(dev);
|
|
|
|
ret = _cpsw_register(priv);
|
|
if (ret < 0) {
|
|
eth_unregister(dev);
|
|
free(dev);
|
|
free(priv);
|
|
return ret;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
#else
|
|
static int cpsw_eth_start(struct udevice *dev)
|
|
{
|
|
struct eth_pdata *pdata = dev_get_platdata(dev);
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
|
|
return _cpsw_init(priv, pdata->enetaddr);
|
|
}
|
|
|
|
static int cpsw_eth_send(struct udevice *dev, void *packet, int length)
|
|
{
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
|
|
return _cpsw_send(priv, packet, length);
|
|
}
|
|
|
|
static int cpsw_eth_recv(struct udevice *dev, int flags, uchar **packetp)
|
|
{
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
|
|
return _cpsw_recv(priv, packetp);
|
|
}
|
|
|
|
static int cpsw_eth_free_pkt(struct udevice *dev, uchar *packet,
|
|
int length)
|
|
{
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
|
|
return cpdma_submit(priv, &priv->rx_chan, packet, PKTSIZE);
|
|
}
|
|
|
|
static void cpsw_eth_stop(struct udevice *dev)
|
|
{
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
|
|
return _cpsw_halt(priv);
|
|
}
|
|
|
|
|
|
static int cpsw_eth_probe(struct udevice *dev)
|
|
{
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
|
|
priv->dev = dev;
|
|
|
|
return _cpsw_register(priv);
|
|
}
|
|
|
|
static const struct eth_ops cpsw_eth_ops = {
|
|
.start = cpsw_eth_start,
|
|
.send = cpsw_eth_send,
|
|
.recv = cpsw_eth_recv,
|
|
.free_pkt = cpsw_eth_free_pkt,
|
|
.stop = cpsw_eth_stop,
|
|
};
|
|
|
|
static inline fdt_addr_t cpsw_get_addr_by_node(const void *fdt, int node)
|
|
{
|
|
return fdtdec_get_addr_size_auto_noparent(fdt, node, "reg", 0, NULL,
|
|
false);
|
|
}
|
|
|
|
static void cpsw_gmii_sel_am3352(struct cpsw_priv *priv,
|
|
phy_interface_t phy_mode)
|
|
{
|
|
u32 reg;
|
|
u32 mask;
|
|
u32 mode = 0;
|
|
bool rgmii_id = false;
|
|
int slave = priv->data.active_slave;
|
|
|
|
reg = readl(priv->data.gmii_sel);
|
|
|
|
switch (phy_mode) {
|
|
case PHY_INTERFACE_MODE_RMII:
|
|
mode = AM33XX_GMII_SEL_MODE_RMII;
|
|
break;
|
|
|
|
case PHY_INTERFACE_MODE_RGMII:
|
|
mode = AM33XX_GMII_SEL_MODE_RGMII;
|
|
break;
|
|
case PHY_INTERFACE_MODE_RGMII_ID:
|
|
case PHY_INTERFACE_MODE_RGMII_RXID:
|
|
case PHY_INTERFACE_MODE_RGMII_TXID:
|
|
mode = AM33XX_GMII_SEL_MODE_RGMII;
|
|
rgmii_id = true;
|
|
break;
|
|
|
|
case PHY_INTERFACE_MODE_MII:
|
|
default:
|
|
mode = AM33XX_GMII_SEL_MODE_MII;
|
|
break;
|
|
};
|
|
|
|
mask = GMII_SEL_MODE_MASK << (slave * 2) | BIT(slave + 6);
|
|
mode <<= slave * 2;
|
|
|
|
if (priv->data.rmii_clock_external) {
|
|
if (slave == 0)
|
|
mode |= AM33XX_GMII_SEL_RMII1_IO_CLK_EN;
|
|
else
|
|
mode |= AM33XX_GMII_SEL_RMII2_IO_CLK_EN;
|
|
}
|
|
|
|
if (rgmii_id) {
|
|
if (slave == 0)
|
|
mode |= AM33XX_GMII_SEL_RGMII1_IDMODE;
|
|
else
|
|
mode |= AM33XX_GMII_SEL_RGMII2_IDMODE;
|
|
}
|
|
|
|
reg &= ~mask;
|
|
reg |= mode;
|
|
|
|
writel(reg, priv->data.gmii_sel);
|
|
}
|
|
|
|
static void cpsw_gmii_sel_dra7xx(struct cpsw_priv *priv,
|
|
phy_interface_t phy_mode)
|
|
{
|
|
u32 reg;
|
|
u32 mask;
|
|
u32 mode = 0;
|
|
int slave = priv->data.active_slave;
|
|
|
|
reg = readl(priv->data.gmii_sel);
|
|
|
|
switch (phy_mode) {
|
|
case PHY_INTERFACE_MODE_RMII:
|
|
mode = AM33XX_GMII_SEL_MODE_RMII;
|
|
break;
|
|
|
|
case PHY_INTERFACE_MODE_RGMII:
|
|
case PHY_INTERFACE_MODE_RGMII_ID:
|
|
case PHY_INTERFACE_MODE_RGMII_RXID:
|
|
case PHY_INTERFACE_MODE_RGMII_TXID:
|
|
mode = AM33XX_GMII_SEL_MODE_RGMII;
|
|
break;
|
|
|
|
case PHY_INTERFACE_MODE_MII:
|
|
default:
|
|
mode = AM33XX_GMII_SEL_MODE_MII;
|
|
break;
|
|
};
|
|
|
|
switch (slave) {
|
|
case 0:
|
|
mask = GMII_SEL_MODE_MASK;
|
|
break;
|
|
case 1:
|
|
mask = GMII_SEL_MODE_MASK << 4;
|
|
mode <<= 4;
|
|
break;
|
|
default:
|
|
dev_err(priv->dev, "invalid slave number...\n");
|
|
return;
|
|
}
|
|
|
|
if (priv->data.rmii_clock_external)
|
|
dev_err(priv->dev, "RMII External clock is not supported\n");
|
|
|
|
reg &= ~mask;
|
|
reg |= mode;
|
|
|
|
writel(reg, priv->data.gmii_sel);
|
|
}
|
|
|
|
static void cpsw_phy_sel(struct cpsw_priv *priv, const char *compat,
|
|
phy_interface_t phy_mode)
|
|
{
|
|
if (!strcmp(compat, "ti,am3352-cpsw-phy-sel"))
|
|
cpsw_gmii_sel_am3352(priv, phy_mode);
|
|
if (!strcmp(compat, "ti,am43xx-cpsw-phy-sel"))
|
|
cpsw_gmii_sel_am3352(priv, phy_mode);
|
|
else if (!strcmp(compat, "ti,dra7xx-cpsw-phy-sel"))
|
|
cpsw_gmii_sel_dra7xx(priv, phy_mode);
|
|
}
|
|
|
|
static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
|
|
{
|
|
struct eth_pdata *pdata = dev_get_platdata(dev);
|
|
struct cpsw_priv *priv = dev_get_priv(dev);
|
|
struct gpio_desc *mode_gpios;
|
|
const char *phy_mode;
|
|
const char *phy_sel_compat = NULL;
|
|
const void *fdt = gd->fdt_blob;
|
|
int node = dev_of_offset(dev);
|
|
int subnode;
|
|
int slave_index = 0;
|
|
int active_slave;
|
|
int num_mode_gpios;
|
|
int ret;
|
|
|
|
pdata->iobase = devfdt_get_addr(dev);
|
|
priv->data.version = CPSW_CTRL_VERSION_2;
|
|
priv->data.bd_ram_ofs = CPSW_BD_OFFSET;
|
|
priv->data.ale_reg_ofs = CPSW_ALE_OFFSET;
|
|
priv->data.cpdma_reg_ofs = CPSW_CPDMA_OFFSET;
|
|
priv->data.mdio_div = CPSW_MDIO_DIV;
|
|
priv->data.host_port_reg_ofs = CPSW_HOST_PORT_OFFSET,
|
|
|
|
pdata->phy_interface = -1;
|
|
|
|
priv->data.cpsw_base = pdata->iobase;
|
|
priv->data.channels = fdtdec_get_int(fdt, node, "cpdma_channels", -1);
|
|
if (priv->data.channels <= 0) {
|
|
printf("error: cpdma_channels not found in dt\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
priv->data.slaves = fdtdec_get_int(fdt, node, "slaves", -1);
|
|
if (priv->data.slaves <= 0) {
|
|
printf("error: slaves not found in dt\n");
|
|
return -ENOENT;
|
|
}
|
|
priv->data.slave_data = malloc(sizeof(struct cpsw_slave_data) *
|
|
priv->data.slaves);
|
|
|
|
priv->data.ale_entries = fdtdec_get_int(fdt, node, "ale_entries", -1);
|
|
if (priv->data.ale_entries <= 0) {
|
|
printf("error: ale_entries not found in dt\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
priv->data.bd_ram_ofs = fdtdec_get_int(fdt, node, "bd_ram_size", -1);
|
|
if (priv->data.bd_ram_ofs <= 0) {
|
|
printf("error: bd_ram_size not found in dt\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
priv->data.mac_control = fdtdec_get_int(fdt, node, "mac_control", -1);
|
|
if (priv->data.mac_control <= 0) {
|
|
printf("error: ale_entries not found in dt\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
num_mode_gpios = gpio_get_list_count(dev, "mode-gpios");
|
|
if (num_mode_gpios > 0) {
|
|
mode_gpios = malloc(sizeof(struct gpio_desc) *
|
|
num_mode_gpios);
|
|
gpio_request_list_by_name(dev, "mode-gpios", mode_gpios,
|
|
num_mode_gpios, GPIOD_IS_OUT);
|
|
free(mode_gpios);
|
|
}
|
|
|
|
active_slave = fdtdec_get_int(fdt, node, "active_slave", 0);
|
|
priv->data.active_slave = active_slave;
|
|
|
|
fdt_for_each_subnode(subnode, fdt, node) {
|
|
int len;
|
|
const char *name;
|
|
|
|
name = fdt_get_name(fdt, subnode, &len);
|
|
if (!strncmp(name, "mdio", 4)) {
|
|
u32 mdio_base;
|
|
|
|
mdio_base = cpsw_get_addr_by_node(fdt, subnode);
|
|
if (mdio_base == FDT_ADDR_T_NONE) {
|
|
pr_err("Not able to get MDIO address space\n");
|
|
return -ENOENT;
|
|
}
|
|
priv->data.mdio_base = mdio_base;
|
|
}
|
|
|
|
if (!strncmp(name, "slave", 5)) {
|
|
u32 phy_id[2];
|
|
|
|
if (slave_index >= priv->data.slaves)
|
|
continue;
|
|
phy_mode = fdt_getprop(fdt, subnode, "phy-mode", NULL);
|
|
if (phy_mode)
|
|
priv->data.slave_data[slave_index].phy_if =
|
|
phy_get_interface_by_name(phy_mode);
|
|
|
|
priv->data.slave_data[slave_index].phy_of_handle =
|
|
fdtdec_lookup_phandle(fdt, subnode,
|
|
"phy-handle");
|
|
|
|
if (priv->data.slave_data[slave_index].phy_of_handle >= 0) {
|
|
priv->data.slave_data[slave_index].phy_addr =
|
|
fdtdec_get_int(gd->fdt_blob,
|
|
priv->data.slave_data[slave_index].phy_of_handle,
|
|
"reg", -1);
|
|
} else {
|
|
fdtdec_get_int_array(fdt, subnode, "phy_id",
|
|
phy_id, 2);
|
|
priv->data.slave_data[slave_index].phy_addr =
|
|
phy_id[1];
|
|
}
|
|
slave_index++;
|
|
}
|
|
|
|
if (!strncmp(name, "cpsw-phy-sel", 12)) {
|
|
priv->data.gmii_sel = cpsw_get_addr_by_node(fdt,
|
|
subnode);
|
|
|
|
if (priv->data.gmii_sel == FDT_ADDR_T_NONE) {
|
|
pr_err("Not able to get gmii_sel reg address\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
if (fdt_get_property(fdt, subnode, "rmii-clock-ext",
|
|
NULL))
|
|
priv->data.rmii_clock_external = true;
|
|
|
|
phy_sel_compat = fdt_getprop(fdt, subnode, "compatible",
|
|
NULL);
|
|
if (!phy_sel_compat) {
|
|
pr_err("Not able to get gmii_sel compatible\n");
|
|
return -ENOENT;
|
|
}
|
|
}
|
|
}
|
|
|
|
priv->data.slave_data[0].slave_reg_ofs = CPSW_SLAVE0_OFFSET;
|
|
priv->data.slave_data[0].sliver_reg_ofs = CPSW_SLIVER0_OFFSET;
|
|
|
|
if (priv->data.slaves == 2) {
|
|
priv->data.slave_data[1].slave_reg_ofs = CPSW_SLAVE1_OFFSET;
|
|
priv->data.slave_data[1].sliver_reg_ofs = CPSW_SLIVER1_OFFSET;
|
|
}
|
|
|
|
ret = ti_cm_get_macid(dev, active_slave, pdata->enetaddr);
|
|
if (ret < 0) {
|
|
pr_err("cpsw read efuse mac failed\n");
|
|
return ret;
|
|
}
|
|
|
|
pdata->phy_interface = priv->data.slave_data[active_slave].phy_if;
|
|
if (pdata->phy_interface == -1) {
|
|
debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Select phy interface in control module */
|
|
cpsw_phy_sel(priv, phy_sel_compat, pdata->phy_interface);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const struct udevice_id cpsw_eth_ids[] = {
|
|
{ .compatible = "ti,cpsw" },
|
|
{ .compatible = "ti,am335x-cpsw" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(eth_cpsw) = {
|
|
.name = "eth_cpsw",
|
|
.id = UCLASS_ETH,
|
|
.of_match = cpsw_eth_ids,
|
|
.ofdata_to_platdata = cpsw_eth_ofdata_to_platdata,
|
|
.probe = cpsw_eth_probe,
|
|
.ops = &cpsw_eth_ops,
|
|
.priv_auto_alloc_size = sizeof(struct cpsw_priv),
|
|
.platdata_auto_alloc_size = sizeof(struct eth_pdata),
|
|
.flags = DM_FLAG_ALLOC_PRIV_DMA,
|
|
};
|
|
#endif /* CONFIG_DM_ETH */
|
|
|