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u-boot/drivers/net/sja1105.c
Vladimir Oltean 7f7e73eee3 net: dsa: sja1105: add support for SGMII 
The list of ports which support SGMII depending on switch generation is
available here:
https://www.kernel.org/doc/html/latest/networking/dsa/sja1105.html#port-compatibility-matrix

SGMII can either be used to connect to an external PHY or to the host
port. In the first case, the use of in-band autoneg is expected, in the
last, in-band autoneg is expected to be turned off (fixed-link). So the
driver supports both cases.

SGMII support means configuring the PCS and PMA. The PCS is a Synopsys
Designware XPCS, in Linux this has a separate driver but here it is
embedded within the sja1105 driver. If needed it can be taken out later,
although we would need a UCLASS_PCS for it, which we don't have atm.

Nonetheless, I did go all the way to export an internal MDIO bus for PCS
access, because it is nice to be able to debug the PCS through commands
such as:

=> mdio read ethernet-switch@1-pcs 4 1f.0
Reading from bus ethernet-switch@1-pcs
PHY at address 4:
31.0 - 0x1140

The internal MDIO bus is not registered with DM because there is no
udevice on it, as mentioned. But the XPCS code can still be ripped out,
as needed.

I did not add support for 2500base-x because I do not expect this
interface type to be used as a boot source for anybody, it would just
add unnecessary bloat.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-11-23 09:57:56 +02:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2016-2018 NXP
* Copyright 2018, Sensor-Technik Wiedemann GmbH
* Copyright 2018-2019, Vladimir Oltean <olteanv@gmail.com>
* Copyright 2020-2021 NXP
*
* Ported from Linux (drivers/net/dsa/sja1105/).
*/
#include <common.h>
#include <dm/device_compat.h>
#include <linux/bitops.h>
#include <linux/bitrev.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/types.h>
#include <net/dsa.h>
#include <stdlib.h>
#include <spi.h>
#include <miiphy.h>
#include <dm/of_extra.h>
enum packing_op {
PACK,
UNPACK,
};
#define ETHER_CRC32_POLY 0x04C11DB7
#define ETH_P_SJA1105 0xdadb
#define SJA1105_NUM_PORTS 5
#define SJA1110_NUM_PORTS 11
#define SJA1105_MAX_NUM_PORTS SJA1110_NUM_PORTS
#define SJA1105_NUM_TC 8
#define SJA1105ET_FDB_BIN_SIZE 4
#define SJA1105_SIZE_CGU_CMD 4
#define SJA1105_SIZE_RESET_CMD 4
#define SJA1105_SIZE_MDIO_CMD 4
#define SJA1105_SIZE_SPI_MSG_HEADER 4
#define SJA1105_SIZE_SPI_MSG_MAXLEN (64 * 4)
#define SJA1105_SIZE_DEVICE_ID 4
#define SJA1105_SIZE_TABLE_HEADER 12
#define SJA1105_SIZE_L2_POLICING_ENTRY 8
#define SJA1105_SIZE_VLAN_LOOKUP_ENTRY 8
#define SJA1110_SIZE_VLAN_LOOKUP_ENTRY 12
#define SJA1105_SIZE_L2_FORWARDING_ENTRY 8
#define SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY 12
#define SJA1105_SIZE_XMII_PARAMS_ENTRY 4
#define SJA1110_SIZE_XMII_PARAMS_ENTRY 8
#define SJA1105ET_SIZE_MAC_CONFIG_ENTRY 28
#define SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY 40
#define SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY 32
#define SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY 44
#define SJA1110_SIZE_GENERAL_PARAMS_ENTRY 56
#define SJA1105_MAX_L2_LOOKUP_COUNT 1024
#define SJA1105_MAX_L2_POLICING_COUNT 45
#define SJA1110_MAX_L2_POLICING_COUNT 110
#define SJA1105_MAX_VLAN_LOOKUP_COUNT 4096
#define SJA1105_MAX_L2_FORWARDING_COUNT 13
#define SJA1110_MAX_L2_FORWARDING_COUNT 19
#define SJA1105_MAX_MAC_CONFIG_COUNT 5
#define SJA1110_MAX_MAC_CONFIG_COUNT 11
#define SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT 1
#define SJA1105_MAX_GENERAL_PARAMS_COUNT 1
#define SJA1105_MAX_XMII_PARAMS_COUNT 1
#define SJA1105_MAX_FRAME_MEMORY 929
#define SJA1105E_DEVICE_ID 0x9C00000Cull
#define SJA1105T_DEVICE_ID 0x9E00030Eull
#define SJA1105PR_DEVICE_ID 0xAF00030Eull
#define SJA1105QS_DEVICE_ID 0xAE00030Eull
#define SJA1110_DEVICE_ID 0xB700030Full
#define SJA1105ET_PART_NO 0x9A83
#define SJA1105P_PART_NO 0x9A84
#define SJA1105Q_PART_NO 0x9A85
#define SJA1105R_PART_NO 0x9A86
#define SJA1105S_PART_NO 0x9A87
#define SJA1110A_PART_NO 0x1110
#define SJA1110B_PART_NO 0x1111
#define SJA1110C_PART_NO 0x1112
#define SJA1110D_PART_NO 0x1113
#define SJA1110_ACU 0x1c4400
#define SJA1110_RGU 0x1c6000
#define SJA1110_CGU 0x1c6400
#define SJA1110_SPI_ADDR(x) ((x) / 4)
#define SJA1110_ACU_ADDR(x) (SJA1110_ACU + SJA1110_SPI_ADDR(x))
#define SJA1110_CGU_ADDR(x) (SJA1110_CGU + SJA1110_SPI_ADDR(x))
#define SJA1110_RGU_ADDR(x) (SJA1110_RGU + SJA1110_SPI_ADDR(x))
#define SJA1105_RSV_ADDR 0xffffffffffffffffull
#define SJA1110_PCS_BANK_REG SJA1110_SPI_ADDR(0x3fc)
#define DSA_8021Q_DIR_TX BIT(11)
#define DSA_8021Q_PORT_SHIFT 0
#define DSA_8021Q_PORT_MASK GENMASK(3, 0)
#define DSA_8021Q_PORT(x) (((x) << DSA_8021Q_PORT_SHIFT) & \
DSA_8021Q_PORT_MASK)
#define SJA1105_RATE_MBPS(speed) (((speed) * 64000) / 1000)
/* XPCS registers */
/* VR MII MMD registers offsets */
#define DW_VR_MII_DIG_CTRL1 0x8000
#define DW_VR_MII_AN_CTRL 0x8001
#define DW_VR_MII_DIG_CTRL2 0x80e1
/* VR_MII_DIG_CTRL1 */
#define DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW BIT(9)
/* VR_MII_DIG_CTRL2 */
#define DW_VR_MII_DIG_CTRL2_TX_POL_INV BIT(4)
/* VR_MII_AN_CTRL */
#define DW_VR_MII_AN_CTRL_TX_CONFIG_SHIFT 3
#define DW_VR_MII_TX_CONFIG_MASK BIT(3)
#define DW_VR_MII_TX_CONFIG_MAC_SIDE_SGMII 0x0
#define DW_VR_MII_AN_CTRL_PCS_MODE_SHIFT 1
#define DW_VR_MII_PCS_MODE_MASK GENMASK(2, 1)
#define DW_VR_MII_PCS_MODE_C37_SGMII 0x2
/* PMA registers */
/* LANE_DRIVER1_0 register */
#define SJA1110_LANE_DRIVER1_0 0x8038
#define SJA1110_TXDRV(x) (((x) << 12) & GENMASK(14, 12))
/* LANE_DRIVER2_0 register */
#define SJA1110_LANE_DRIVER2_0 0x803a
#define SJA1110_TXDRVTRIM_LSB(x) ((x) & GENMASK_ULL(15, 0))
/* LANE_DRIVER2_1 register */
#define SJA1110_LANE_DRIVER2_1 0x803b
#define SJA1110_LANE_DRIVER2_1_RSV BIT(9)
#define SJA1110_TXDRVTRIM_MSB(x) (((x) & GENMASK_ULL(23, 16)) >> 16)
/* LANE_TRIM register */
#define SJA1110_LANE_TRIM 0x8040
#define SJA1110_TXTEN BIT(11)
#define SJA1110_TXRTRIM(x) (((x) << 8) & GENMASK(10, 8))
#define SJA1110_TXPLL_BWSEL BIT(7)
#define SJA1110_RXTEN BIT(6)
#define SJA1110_RXRTRIM(x) (((x) << 3) & GENMASK(5, 3))
#define SJA1110_CDR_GAIN BIT(2)
#define SJA1110_ACCOUPLE_RXVCM_EN BIT(0)
/* LANE_DATAPATH_1 register */
#define SJA1110_LANE_DATAPATH_1 0x8037
/* POWERDOWN_ENABLE register */
#define SJA1110_POWERDOWN_ENABLE 0x8041
#define SJA1110_TXPLL_PD BIT(12)
#define SJA1110_TXPD BIT(11)
#define SJA1110_RXPKDETEN BIT(10)
#define SJA1110_RXCH_PD BIT(9)
#define SJA1110_RXBIAS_PD BIT(8)
#define SJA1110_RESET_SER_EN BIT(7)
#define SJA1110_RESET_SER BIT(6)
#define SJA1110_RESET_DES BIT(5)
#define SJA1110_RCVEN BIT(4)
/* RXPLL_CTRL0 register */
#define SJA1110_RXPLL_CTRL0 0x8065
#define SJA1110_RXPLL_FBDIV(x) (((x) << 2) & GENMASK(9, 2))
/* RXPLL_CTRL1 register */
#define SJA1110_RXPLL_CTRL1 0x8066
#define SJA1110_RXPLL_REFDIV(x) ((x) & GENMASK(4, 0))
/* TXPLL_CTRL0 register */
#define SJA1110_TXPLL_CTRL0 0x806d
#define SJA1110_TXPLL_FBDIV(x) ((x) & GENMASK(11, 0))
/* TXPLL_CTRL1 register */
#define SJA1110_TXPLL_CTRL1 0x806e
#define SJA1110_TXPLL_REFDIV(x) ((x) & GENMASK(5, 0))
/* RX_DATA_DETECT register */
#define SJA1110_RX_DATA_DETECT 0x8045
/* RX_CDR_CTLE register */
#define SJA1110_RX_CDR_CTLE 0x8042
/* UM10944.pdf Page 11, Table 2. Configuration Blocks */
enum {
BLKID_L2_POLICING = 0x06,
BLKID_VLAN_LOOKUP = 0x07,
BLKID_L2_FORWARDING = 0x08,
BLKID_MAC_CONFIG = 0x09,
BLKID_L2_FORWARDING_PARAMS = 0x0E,
BLKID_GENERAL_PARAMS = 0x11,
BLKID_XMII_PARAMS = 0x4E,
};
enum sja1105_blk_idx {
BLK_IDX_L2_POLICING = 0,
BLK_IDX_VLAN_LOOKUP,
BLK_IDX_L2_FORWARDING,
BLK_IDX_MAC_CONFIG,
BLK_IDX_L2_FORWARDING_PARAMS,
BLK_IDX_GENERAL_PARAMS,
BLK_IDX_XMII_PARAMS,
BLK_IDX_MAX,
};
struct sja1105_general_params_entry {
u64 mac_fltres1;
u64 mac_fltres0;
u64 mac_flt1;
u64 mac_flt0;
u64 casc_port;
u64 host_port;
u64 mirr_port;
u64 tpid;
u64 tpid2;
};
struct sja1105_vlan_lookup_entry {
u64 vmemb_port;
u64 vlan_bc;
u64 tag_port;
u64 vlanid;
u64 type_entry; /* SJA1110 only */
};
struct sja1105_l2_forwarding_entry {
u64 bc_domain;
u64 reach_port;
u64 fl_domain;
};
struct sja1105_l2_forwarding_params_entry {
u64 part_spc[SJA1105_NUM_TC];
};
struct sja1105_l2_policing_entry {
u64 sharindx;
u64 smax;
u64 rate;
u64 maxlen;
u64 partition;
};
struct sja1105_mac_config_entry {
u64 top[SJA1105_NUM_TC];
u64 base[SJA1105_NUM_TC];
u64 enabled[SJA1105_NUM_TC];
u64 speed;
u64 vlanid;
u64 egress;
u64 ingress;
};
struct sja1105_xmii_params_entry {
u64 phy_mac[SJA1105_MAX_NUM_PORTS];
u64 xmii_mode[SJA1105_MAX_NUM_PORTS];
u64 special[SJA1105_MAX_NUM_PORTS];
};
struct sja1105_table_header {
u64 block_id;
u64 len;
u64 crc;
};
struct sja1105_table_ops {
size_t (*packing)(void *buf, void *entry_ptr, enum packing_op op);
size_t unpacked_entry_size;
size_t packed_entry_size;
size_t max_entry_count;
};
struct sja1105_table {
const struct sja1105_table_ops *ops;
size_t entry_count;
void *entries;
};
struct sja1105_static_config {
u64 device_id;
struct sja1105_table tables[BLK_IDX_MAX];
};
struct sja1105_xpcs_cfg {
bool inband_an;
int speed;
};
struct sja1105_private {
struct sja1105_static_config static_config;
bool rgmii_rx_delay[SJA1105_MAX_NUM_PORTS];
bool rgmii_tx_delay[SJA1105_MAX_NUM_PORTS];
u16 pvid[SJA1105_MAX_NUM_PORTS];
struct sja1105_xpcs_cfg xpcs_cfg[SJA1105_MAX_NUM_PORTS];
struct mii_dev *mdio_pcs;
const struct sja1105_info *info;
struct udevice *dev;
};
typedef enum {
SPI_READ = 0,
SPI_WRITE = 1,
} sja1105_spi_rw_mode_t;
typedef enum {
XMII_MAC = 0,
XMII_PHY = 1,
} sja1105_mii_role_t;
typedef enum {
XMII_MODE_MII = 0,
XMII_MODE_RMII = 1,
XMII_MODE_RGMII = 2,
XMII_MODE_SGMII = 3,
} sja1105_phy_interface_t;
enum {
SJA1105_SPEED_AUTO,
SJA1105_SPEED_10MBPS,
SJA1105_SPEED_100MBPS,
SJA1105_SPEED_1000MBPS,
SJA1105_SPEED_MAX,
};
enum sja1110_vlan_type {
SJA1110_VLAN_INVALID = 0,
SJA1110_VLAN_C_TAG = 1, /* Single inner VLAN tag */
SJA1110_VLAN_S_TAG = 2, /* Single outer VLAN tag */
SJA1110_VLAN_D_TAG = 3, /* Double tagged, use outer tag for lookup */
};
/* Keeps the different addresses between E/T and P/Q/R/S */
struct sja1105_regs {
u64 device_id;
u64 prod_id;
u64 status;
u64 port_control;
u64 rgu;
u64 config;
u64 rmii_pll1;
u64 pad_mii_tx[SJA1105_MAX_NUM_PORTS];
u64 pad_mii_rx[SJA1105_MAX_NUM_PORTS];
u64 pad_mii_id[SJA1105_MAX_NUM_PORTS];
u64 cgu_idiv[SJA1105_MAX_NUM_PORTS];
u64 mii_tx_clk[SJA1105_MAX_NUM_PORTS];
u64 mii_rx_clk[SJA1105_MAX_NUM_PORTS];
u64 mii_ext_tx_clk[SJA1105_MAX_NUM_PORTS];
u64 mii_ext_rx_clk[SJA1105_MAX_NUM_PORTS];
u64 rgmii_tx_clk[SJA1105_MAX_NUM_PORTS];
u64 rmii_ref_clk[SJA1105_MAX_NUM_PORTS];
u64 rmii_ext_tx_clk[SJA1105_MAX_NUM_PORTS];
u64 pcs_base[SJA1105_MAX_NUM_PORTS];
};
struct sja1105_info {
u64 device_id;
u64 part_no;
const struct sja1105_table_ops *static_ops;
const struct sja1105_regs *regs;
int (*reset_cmd)(struct sja1105_private *priv);
int (*setup_rgmii_delay)(struct sja1105_private *priv, int port);
int (*pcs_mdio_read)(struct mii_dev *bus, int phy, int mmd, int reg);
int (*pcs_mdio_write)(struct mii_dev *bus, int phy, int mmd, int reg,
u16 val);
int (*pma_config)(struct sja1105_private *priv, int port);
const char *name;
bool supports_mii[SJA1105_MAX_NUM_PORTS];
bool supports_rmii[SJA1105_MAX_NUM_PORTS];
bool supports_rgmii[SJA1105_MAX_NUM_PORTS];
bool supports_sgmii[SJA1105_MAX_NUM_PORTS];
const u64 port_speed[SJA1105_SPEED_MAX];
};
struct sja1105_chunk {
u8 *buf;
size_t len;
u64 reg_addr;
};
struct sja1105_spi_message {
u64 access;
u64 read_count;
u64 address;
};
/* Common structure for CFG_PAD_MIIx_RX and CFG_PAD_MIIx_TX */
struct sja1105_cfg_pad_mii {
u64 d32_os;
u64 d32_ih;
u64 d32_ipud;
u64 d10_ih;
u64 d10_os;
u64 d10_ipud;
u64 ctrl_os;
u64 ctrl_ih;
u64 ctrl_ipud;
u64 clk_os;
u64 clk_ih;
u64 clk_ipud;
};
struct sja1105_cfg_pad_mii_id {
u64 rxc_stable_ovr;
u64 rxc_delay;
u64 rxc_bypass;
u64 rxc_pd;
u64 txc_stable_ovr;
u64 txc_delay;
u64 txc_bypass;
u64 txc_pd;
};
struct sja1105_cgu_idiv {
u64 clksrc;
u64 autoblock;
u64 idiv;
u64 pd;
};
struct sja1105_cgu_pll_ctrl {
u64 pllclksrc;
u64 msel;
u64 autoblock;
u64 psel;
u64 direct;
u64 fbsel;
u64 bypass;
u64 pd;
};
enum {
CLKSRC_MII0_TX_CLK = 0x00,
CLKSRC_MII0_RX_CLK = 0x01,
CLKSRC_MII1_TX_CLK = 0x02,
CLKSRC_MII1_RX_CLK = 0x03,
CLKSRC_MII2_TX_CLK = 0x04,
CLKSRC_MII2_RX_CLK = 0x05,
CLKSRC_MII3_TX_CLK = 0x06,
CLKSRC_MII3_RX_CLK = 0x07,
CLKSRC_MII4_TX_CLK = 0x08,
CLKSRC_MII4_RX_CLK = 0x09,
CLKSRC_PLL0 = 0x0B,
CLKSRC_PLL1 = 0x0E,
CLKSRC_IDIV0 = 0x11,
CLKSRC_IDIV1 = 0x12,
CLKSRC_IDIV2 = 0x13,
CLKSRC_IDIV3 = 0x14,
CLKSRC_IDIV4 = 0x15,
};
struct sja1105_cgu_mii_ctrl {
u64 clksrc;
u64 autoblock;
u64 pd;
};
static int get_reverse_lsw32_offset(int offset, size_t len)
{
int closest_multiple_of_4;
int word_index;
word_index = offset / 4;
closest_multiple_of_4 = word_index * 4;
offset -= closest_multiple_of_4;
word_index = (len / 4) - word_index - 1;
return word_index * 4 + offset;
}
/* Simplified version of the "packing" function from Linux, adapted
* to support only sja1105's quirk: QUIRK_LSW32_IS_FIRST
*/
static void sja1105_packing(void *pbuf, u64 *uval, int startbit, int endbit,
size_t pbuflen, enum packing_op op)
{
int plogical_first_u8, plogical_last_u8, box;
if (op == UNPACK)
*uval = 0;
plogical_first_u8 = startbit / 8;
plogical_last_u8 = endbit / 8;
for (box = plogical_first_u8; box >= plogical_last_u8; box--) {
int box_start_bit, box_end_bit, box_addr;
int proj_start_bit, proj_end_bit;
u64 proj_mask;
u8 box_mask;
if (box == plogical_first_u8)
box_start_bit = startbit % 8;
else
box_start_bit = 7;
if (box == plogical_last_u8)
box_end_bit = endbit % 8;
else
box_end_bit = 0;
proj_start_bit = ((box * 8) + box_start_bit) - endbit;
proj_end_bit = ((box * 8) + box_end_bit) - endbit;
proj_mask = GENMASK_ULL(proj_start_bit, proj_end_bit);
box_mask = GENMASK_ULL(box_start_bit, box_end_bit);
box_addr = pbuflen - box - 1;
box_addr = get_reverse_lsw32_offset(box_addr, pbuflen);
if (op == UNPACK) {
u64 pval;
/* Read from pbuf, write to uval */
pval = ((u8 *)pbuf)[box_addr] & box_mask;
pval >>= box_end_bit;
pval <<= proj_end_bit;
*uval &= ~proj_mask;
*uval |= pval;
} else {
u64 pval;
/* Write to pbuf, read from uval */
pval = (*uval) & proj_mask;
pval >>= proj_end_bit;
pval <<= box_end_bit;
((u8 *)pbuf)[box_addr] &= ~box_mask;
((u8 *)pbuf)[box_addr] |= pval;
}
}
}
static u32 crc32_add(u32 crc, u8 byte)
{
u32 byte32 = bitrev32(byte);
int i;
for (i = 0; i < 8; i++) {
if ((crc ^ byte32) & BIT(31)) {
crc <<= 1;
crc ^= ETHER_CRC32_POLY;
} else {
crc <<= 1;
}
byte32 <<= 1;
}
return crc;
}
/* Little-endian Ethernet CRC32 of data packed as big-endian u32 words */
static uint32_t sja1105_crc32(void *buf, size_t len)
{
unsigned int i;
u64 chunk;
u32 crc;
/* seed */
crc = 0xFFFFFFFF;
for (i = 0; i < len; i += 4) {
sja1105_packing(buf + i, &chunk, 31, 0, 4, UNPACK);
crc = crc32_add(crc, chunk & 0xFF);
crc = crc32_add(crc, (chunk >> 8) & 0xFF);
crc = crc32_add(crc, (chunk >> 16) & 0xFF);
crc = crc32_add(crc, (chunk >> 24) & 0xFF);
}
return bitrev32(~crc);
}
static void sja1105_spi_message_pack(void *buf, struct sja1105_spi_message *msg)
{
const int size = SJA1105_SIZE_SPI_MSG_HEADER;
memset(buf, 0, size);
sja1105_packing(buf, &msg->access, 31, 31, size, PACK);
sja1105_packing(buf, &msg->read_count, 30, 25, size, PACK);
sja1105_packing(buf, &msg->address, 24, 4, size, PACK);
}
static int sja1105_xfer_buf(const struct sja1105_private *priv,
sja1105_spi_rw_mode_t rw, u64 reg_addr,
u8 *buf, size_t len)
{
struct udevice *dev = priv->dev;
struct sja1105_chunk chunk = {
.len = min_t(size_t, len, SJA1105_SIZE_SPI_MSG_MAXLEN),
.reg_addr = reg_addr,
.buf = buf,
};
int num_chunks;
int rc, i;
rc = dm_spi_claim_bus(dev);
if (rc)
return rc;
num_chunks = DIV_ROUND_UP(len, SJA1105_SIZE_SPI_MSG_MAXLEN);
for (i = 0; i < num_chunks; i++) {
u8 hdr_buf[SJA1105_SIZE_SPI_MSG_HEADER];
struct sja1105_spi_message msg;
u8 *rx_buf = NULL;
u8 *tx_buf = NULL;
/* Populate the transfer's header buffer */
msg.address = chunk.reg_addr;
msg.access = rw;
if (rw == SPI_READ)
msg.read_count = chunk.len / 4;
else
/* Ignored */
msg.read_count = 0;
sja1105_spi_message_pack(hdr_buf, &msg);
rc = dm_spi_xfer(dev, SJA1105_SIZE_SPI_MSG_HEADER * 8, hdr_buf,
NULL, SPI_XFER_BEGIN);
if (rc)
goto out;
/* Populate the transfer's data buffer */
if (rw == SPI_READ)
rx_buf = chunk.buf;
else
tx_buf = chunk.buf;
rc = dm_spi_xfer(dev, chunk.len * 8, tx_buf, rx_buf,
SPI_XFER_END);
if (rc)
goto out;
/* Calculate next chunk */
chunk.buf += chunk.len;
chunk.reg_addr += chunk.len / 4;
chunk.len = min_t(size_t, (ptrdiff_t)(buf + len - chunk.buf),
SJA1105_SIZE_SPI_MSG_MAXLEN);
}
out:
dm_spi_release_bus(dev);
return rc;
}
static int sja1105et_reset_cmd(struct sja1105_private *priv)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_RESET_CMD] = {0};
const int size = SJA1105_SIZE_RESET_CMD;
u64 cold_rst = 1;
sja1105_packing(packed_buf, &cold_rst, 3, 3, size, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rgu, packed_buf,
SJA1105_SIZE_RESET_CMD);
}
static int sja1105pqrs_reset_cmd(struct sja1105_private *priv)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_RESET_CMD] = {0};
const int size = SJA1105_SIZE_RESET_CMD;
u64 cold_rst = 1;
sja1105_packing(packed_buf, &cold_rst, 2, 2, size, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rgu, packed_buf,
SJA1105_SIZE_RESET_CMD);
}
static int sja1110_reset_cmd(struct sja1105_private *priv)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_RESET_CMD] = {0};
const int size = SJA1105_SIZE_RESET_CMD;
u64 switch_rst = 1;
/* Only reset the switch core.
* A full cold reset would re-enable the BASE_MCSS_CLOCK PLL which
* would turn on the microcontroller, potentially letting it execute
* code which could interfere with our configuration.
*/
sja1105_packing(packed_buf, &switch_rst, 20, 20, size, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rgu, packed_buf,
SJA1105_SIZE_RESET_CMD);
}
static size_t sja1105et_general_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY;
struct sja1105_general_params_entry *entry = entry_ptr;
sja1105_packing(buf, &entry->mac_fltres1, 311, 264, size, op);
sja1105_packing(buf, &entry->mac_fltres0, 263, 216, size, op);
sja1105_packing(buf, &entry->mac_flt1, 215, 168, size, op);
sja1105_packing(buf, &entry->mac_flt0, 167, 120, size, op);
sja1105_packing(buf, &entry->casc_port, 115, 113, size, op);
sja1105_packing(buf, &entry->host_port, 112, 110, size, op);
sja1105_packing(buf, &entry->mirr_port, 109, 107, size, op);
sja1105_packing(buf, &entry->tpid, 42, 27, size, op);
sja1105_packing(buf, &entry->tpid2, 25, 10, size, op);
return size;
}
static size_t sja1110_general_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
struct sja1105_general_params_entry *entry = entry_ptr;
const size_t size = SJA1110_SIZE_GENERAL_PARAMS_ENTRY;
sja1105_packing(buf, &entry->mac_fltres1, 438, 391, size, op);
sja1105_packing(buf, &entry->mac_fltres0, 390, 343, size, op);
sja1105_packing(buf, &entry->mac_flt1, 342, 295, size, op);
sja1105_packing(buf, &entry->mac_flt0, 294, 247, size, op);
sja1105_packing(buf, &entry->casc_port, 242, 232, size, op);
sja1105_packing(buf, &entry->host_port, 231, 228, size, op);
sja1105_packing(buf, &entry->mirr_port, 227, 224, size, op);
sja1105_packing(buf, &entry->tpid2, 159, 144, size, op);
sja1105_packing(buf, &entry->tpid, 142, 127, size, op);
return size;
}
static size_t
sja1105pqrs_general_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY;
struct sja1105_general_params_entry *entry = entry_ptr;
sja1105_packing(buf, &entry->mac_fltres1, 343, 296, size, op);
sja1105_packing(buf, &entry->mac_fltres0, 295, 248, size, op);
sja1105_packing(buf, &entry->mac_flt1, 247, 200, size, op);
sja1105_packing(buf, &entry->mac_flt0, 199, 152, size, op);
sja1105_packing(buf, &entry->casc_port, 147, 145, size, op);
sja1105_packing(buf, &entry->host_port, 144, 142, size, op);
sja1105_packing(buf, &entry->mirr_port, 141, 139, size, op);
sja1105_packing(buf, &entry->tpid, 74, 59, size, op);
sja1105_packing(buf, &entry->tpid2, 57, 42, size, op);
return size;
}
static size_t
sja1105_l2_forwarding_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY;
struct sja1105_l2_forwarding_params_entry *entry = entry_ptr;
int offset, i;
for (i = 0, offset = 13; i < SJA1105_NUM_TC; i++, offset += 10)
sja1105_packing(buf, &entry->part_spc[i],
offset + 9, offset + 0, size, op);
return size;
}
static size_t
sja1110_l2_forwarding_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
struct sja1105_l2_forwarding_params_entry *entry = entry_ptr;
const size_t size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY;
int offset, i;
for (i = 0, offset = 5; i < 8; i++, offset += 11)
sja1105_packing(buf, &entry->part_spc[i],
offset + 10, offset + 0, size, op);
return size;
}
static size_t sja1105_l2_forwarding_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105_SIZE_L2_FORWARDING_ENTRY;
struct sja1105_l2_forwarding_entry *entry = entry_ptr;
sja1105_packing(buf, &entry->bc_domain, 63, 59, size, op);
sja1105_packing(buf, &entry->reach_port, 58, 54, size, op);
sja1105_packing(buf, &entry->fl_domain, 53, 49, size, op);
return size;
}
static size_t sja1110_l2_forwarding_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
struct sja1105_l2_forwarding_entry *entry = entry_ptr;
const size_t size = SJA1105_SIZE_L2_FORWARDING_ENTRY;
sja1105_packing(buf, &entry->bc_domain, 63, 53, size, op);
sja1105_packing(buf, &entry->reach_port, 52, 42, size, op);
sja1105_packing(buf, &entry->fl_domain, 41, 31, size, op);
return size;
}
static size_t sja1105_l2_policing_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
struct sja1105_l2_policing_entry *entry = entry_ptr;
const size_t size = SJA1105_SIZE_L2_POLICING_ENTRY;
sja1105_packing(buf, &entry->sharindx, 63, 58, size, op);
sja1105_packing(buf, &entry->smax, 57, 42, size, op);
sja1105_packing(buf, &entry->rate, 41, 26, size, op);
sja1105_packing(buf, &entry->maxlen, 25, 15, size, op);
sja1105_packing(buf, &entry->partition, 14, 12, size, op);
return size;
}
static size_t sja1110_l2_policing_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
struct sja1105_l2_policing_entry *entry = entry_ptr;
const size_t size = SJA1105_SIZE_L2_POLICING_ENTRY;
sja1105_packing(buf, &entry->sharindx, 63, 57, size, op);
sja1105_packing(buf, &entry->smax, 56, 39, size, op);
sja1105_packing(buf, &entry->rate, 38, 21, size, op);
sja1105_packing(buf, &entry->maxlen, 20, 10, size, op);
sja1105_packing(buf, &entry->partition, 9, 7, size, op);
return size;
}
static size_t sja1105et_mac_config_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY;
struct sja1105_mac_config_entry *entry = entry_ptr;
int offset, i;
for (i = 0, offset = 72; i < SJA1105_NUM_TC; i++, offset += 19) {
sja1105_packing(buf, &entry->enabled[i],
offset + 0, offset + 0, size, op);
sja1105_packing(buf, &entry->base[i],
offset + 9, offset + 1, size, op);
sja1105_packing(buf, &entry->top[i],
offset + 18, offset + 10, size, op);
}
sja1105_packing(buf, &entry->speed, 66, 65, size, op);
sja1105_packing(buf, &entry->vlanid, 21, 10, size, op);
sja1105_packing(buf, &entry->egress, 2, 2, size, op);
sja1105_packing(buf, &entry->ingress, 1, 1, size, op);
return size;
}
static size_t sja1105pqrs_mac_config_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY;
struct sja1105_mac_config_entry *entry = entry_ptr;
int offset, i;
for (i = 0, offset = 104; i < SJA1105_NUM_TC; i++, offset += 19) {
sja1105_packing(buf, &entry->enabled[i],
offset + 0, offset + 0, size, op);
sja1105_packing(buf, &entry->base[i],
offset + 9, offset + 1, size, op);
sja1105_packing(buf, &entry->top[i],
offset + 18, offset + 10, size, op);
}
sja1105_packing(buf, &entry->speed, 98, 97, size, op);
sja1105_packing(buf, &entry->vlanid, 53, 42, size, op);
sja1105_packing(buf, &entry->egress, 32, 32, size, op);
sja1105_packing(buf, &entry->ingress, 31, 31, size, op);
return size;
}
static size_t sja1110_mac_config_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY;
struct sja1105_mac_config_entry *entry = entry_ptr;
int offset, i;
for (i = 0, offset = 104; i < 8; i++, offset += 19) {
sja1105_packing(buf, &entry->enabled[i],
offset + 0, offset + 0, size, op);
sja1105_packing(buf, &entry->base[i],
offset + 9, offset + 1, size, op);
sja1105_packing(buf, &entry->top[i],
offset + 18, offset + 10, size, op);
}
sja1105_packing(buf, &entry->speed, 98, 96, size, op);
sja1105_packing(buf, &entry->vlanid, 52, 41, size, op);
sja1105_packing(buf, &entry->egress, 31, 31, size, op);
sja1105_packing(buf, &entry->ingress, 30, 30, size, op);
return size;
}
static size_t sja1105_vlan_lookup_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY;
struct sja1105_vlan_lookup_entry *entry = entry_ptr;
sja1105_packing(buf, &entry->vmemb_port, 53, 49, size, op);
sja1105_packing(buf, &entry->vlan_bc, 48, 44, size, op);
sja1105_packing(buf, &entry->tag_port, 43, 39, size, op);
sja1105_packing(buf, &entry->vlanid, 38, 27, size, op);
return size;
}
static size_t sja1110_vlan_lookup_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
struct sja1105_vlan_lookup_entry *entry = entry_ptr;
const size_t size = SJA1110_SIZE_VLAN_LOOKUP_ENTRY;
sja1105_packing(buf, &entry->vmemb_port, 73, 63, size, op);
sja1105_packing(buf, &entry->vlan_bc, 62, 52, size, op);
sja1105_packing(buf, &entry->tag_port, 51, 41, size, op);
sja1105_packing(buf, &entry->type_entry, 40, 39, size, op);
sja1105_packing(buf, &entry->vlanid, 38, 27, size, op);
return size;
}
static size_t sja1105_xmii_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105_SIZE_XMII_PARAMS_ENTRY;
struct sja1105_xmii_params_entry *entry = entry_ptr;
int offset, i;
for (i = 0, offset = 17; i < SJA1105_NUM_PORTS; i++, offset += 3) {
sja1105_packing(buf, &entry->xmii_mode[i],
offset + 1, offset + 0, size, op);
sja1105_packing(buf, &entry->phy_mac[i],
offset + 2, offset + 2, size, op);
}
return size;
}
static size_t sja1110_xmii_params_entry_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1110_SIZE_XMII_PARAMS_ENTRY;
struct sja1105_xmii_params_entry *entry = entry_ptr;
int offset, i;
for (i = 0, offset = 20; i < SJA1110_NUM_PORTS; i++, offset += 4) {
sja1105_packing(buf, &entry->xmii_mode[i],
offset + 1, offset + 0, size, op);
sja1105_packing(buf, &entry->phy_mac[i],
offset + 2, offset + 2, size, op);
sja1105_packing(buf, &entry->special[i],
offset + 3, offset + 3, size, op);
}
return size;
}
static size_t sja1105_table_header_packing(void *buf, void *entry_ptr,
enum packing_op op)
{
const size_t size = SJA1105_SIZE_TABLE_HEADER;
struct sja1105_table_header *entry = entry_ptr;
sja1105_packing(buf, &entry->block_id, 31, 24, size, op);
sja1105_packing(buf, &entry->len, 55, 32, size, op);
sja1105_packing(buf, &entry->crc, 95, 64, size, op);
return size;
}
static void
sja1105_table_header_pack_with_crc(void *buf, struct sja1105_table_header *hdr)
{
/* First pack the table as-is, then calculate the CRC, and
* finally put the proper CRC into the packed buffer
*/
memset(buf, 0, SJA1105_SIZE_TABLE_HEADER);
sja1105_table_header_packing(buf, hdr, PACK);
hdr->crc = sja1105_crc32(buf, SJA1105_SIZE_TABLE_HEADER - 4);
sja1105_packing(buf + SJA1105_SIZE_TABLE_HEADER - 4, &hdr->crc,
31, 0, 4, PACK);
}
static void sja1105_table_write_crc(u8 *table_start, u8 *crc_ptr)
{
u64 computed_crc;
int len_bytes;
len_bytes = (uintptr_t)(crc_ptr - table_start);
computed_crc = sja1105_crc32(table_start, len_bytes);
sja1105_packing(crc_ptr, &computed_crc, 31, 0, 4, PACK);
}
/* The block IDs that the switches support are unfortunately sparse, so keep a
* mapping table to "block indices" and translate back and forth.
*/
static const u64 blk_id_map[BLK_IDX_MAX] = {
[BLK_IDX_L2_POLICING] = BLKID_L2_POLICING,
[BLK_IDX_VLAN_LOOKUP] = BLKID_VLAN_LOOKUP,
[BLK_IDX_L2_FORWARDING] = BLKID_L2_FORWARDING,
[BLK_IDX_MAC_CONFIG] = BLKID_MAC_CONFIG,
[BLK_IDX_L2_FORWARDING_PARAMS] = BLKID_L2_FORWARDING_PARAMS,
[BLK_IDX_GENERAL_PARAMS] = BLKID_GENERAL_PARAMS,
[BLK_IDX_XMII_PARAMS] = BLKID_XMII_PARAMS,
};
static void
sja1105_static_config_pack(void *buf, struct sja1105_static_config *config)
{
struct sja1105_table_header header = {0};
enum sja1105_blk_idx i;
u8 *p = buf;
int j;
sja1105_packing(p, &config->device_id, 31, 0, 4, PACK);
p += SJA1105_SIZE_DEVICE_ID;
for (i = 0; i < BLK_IDX_MAX; i++) {
const struct sja1105_table *table;
u8 *table_start;
table = &config->tables[i];
if (!table->entry_count)
continue;
header.block_id = blk_id_map[i];
header.len = table->entry_count *
table->ops->packed_entry_size / 4;
sja1105_table_header_pack_with_crc(p, &header);
p += SJA1105_SIZE_TABLE_HEADER;
table_start = p;
for (j = 0; j < table->entry_count; j++) {
u8 *entry_ptr = table->entries;
entry_ptr += j * table->ops->unpacked_entry_size;
memset(p, 0, table->ops->packed_entry_size);
table->ops->packing(p, entry_ptr, PACK);
p += table->ops->packed_entry_size;
}
sja1105_table_write_crc(table_start, p);
p += 4;
}
/* Final header:
* Block ID does not matter
* Length of 0 marks that header is final
* CRC will be replaced on-the-fly
*/
header.block_id = 0;
header.len = 0;
header.crc = 0xDEADBEEF;
memset(p, 0, SJA1105_SIZE_TABLE_HEADER);
sja1105_table_header_packing(p, &header, PACK);
}
static size_t
sja1105_static_config_get_length(const struct sja1105_static_config *config)
{
unsigned int header_count;
enum sja1105_blk_idx i;
unsigned int sum;
/* Ending header */
header_count = 1;
sum = SJA1105_SIZE_DEVICE_ID;
/* Tables (headers and entries) */
for (i = 0; i < BLK_IDX_MAX; i++) {
const struct sja1105_table *table;
table = &config->tables[i];
if (table->entry_count)
header_count++;
sum += table->ops->packed_entry_size * table->entry_count;
}
/* Headers have an additional CRC at the end */
sum += header_count * (SJA1105_SIZE_TABLE_HEADER + 4);
/* Last header does not have an extra CRC because there is no data */
sum -= 4;
return sum;
}
/* Compatibility matrices */
static const struct sja1105_table_ops sja1105et_table_ops[BLK_IDX_MAX] = {
[BLK_IDX_L2_POLICING] = {
.packing = sja1105_l2_policing_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
.packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
.max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
},
[BLK_IDX_VLAN_LOOKUP] = {
.packing = sja1105_vlan_lookup_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
.packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
.max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
},
[BLK_IDX_L2_FORWARDING] = {
.packing = sja1105_l2_forwarding_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
.packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
.max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
},
[BLK_IDX_MAC_CONFIG] = {
.packing = sja1105et_mac_config_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
.packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
},
[BLK_IDX_L2_FORWARDING_PARAMS] = {
.packing = sja1105_l2_forwarding_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
.packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
},
[BLK_IDX_GENERAL_PARAMS] = {
.packing = sja1105et_general_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
.packed_entry_size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
},
[BLK_IDX_XMII_PARAMS] = {
.packing = sja1105_xmii_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
.packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
},
};
static const struct sja1105_table_ops sja1105pqrs_table_ops[BLK_IDX_MAX] = {
[BLK_IDX_L2_POLICING] = {
.packing = sja1105_l2_policing_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
.packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
.max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
},
[BLK_IDX_VLAN_LOOKUP] = {
.packing = sja1105_vlan_lookup_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
.packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
.max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
},
[BLK_IDX_L2_FORWARDING] = {
.packing = sja1105_l2_forwarding_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
.packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
.max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
},
[BLK_IDX_MAC_CONFIG] = {
.packing = sja1105pqrs_mac_config_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
.packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
},
[BLK_IDX_L2_FORWARDING_PARAMS] = {
.packing = sja1105_l2_forwarding_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
.packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
},
[BLK_IDX_GENERAL_PARAMS] = {
.packing = sja1105pqrs_general_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
.packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
},
[BLK_IDX_XMII_PARAMS] = {
.packing = sja1105_xmii_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
.packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
},
};
static const struct sja1105_table_ops sja1110_table_ops[BLK_IDX_MAX] = {
[BLK_IDX_L2_POLICING] = {
.packing = sja1110_l2_policing_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
.packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
.max_entry_count = SJA1110_MAX_L2_POLICING_COUNT,
},
[BLK_IDX_VLAN_LOOKUP] = {
.packing = sja1110_vlan_lookup_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
.packed_entry_size = SJA1110_SIZE_VLAN_LOOKUP_ENTRY,
.max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
},
[BLK_IDX_L2_FORWARDING] = {
.packing = sja1110_l2_forwarding_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
.packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
.max_entry_count = SJA1110_MAX_L2_FORWARDING_COUNT,
},
[BLK_IDX_MAC_CONFIG] = {
.packing = sja1110_mac_config_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
.packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
.max_entry_count = SJA1110_MAX_MAC_CONFIG_COUNT,
},
[BLK_IDX_L2_FORWARDING_PARAMS] = {
.packing = sja1110_l2_forwarding_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
.packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
},
[BLK_IDX_GENERAL_PARAMS] = {
.packing = sja1110_general_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
.packed_entry_size = SJA1110_SIZE_GENERAL_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
},
[BLK_IDX_XMII_PARAMS] = {
.packing = sja1110_xmii_params_entry_packing,
.unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
.packed_entry_size = SJA1110_SIZE_XMII_PARAMS_ENTRY,
.max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
},
};
static int sja1105_init_mii_settings(struct sja1105_private *priv)
{
struct sja1105_table *table;
table = &priv->static_config.tables[BLK_IDX_XMII_PARAMS];
table->entries = calloc(SJA1105_MAX_XMII_PARAMS_COUNT,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
/* Table will be populated at runtime */
table->entry_count = SJA1105_MAX_XMII_PARAMS_COUNT;
return 0;
}
static void sja1105_setup_tagging(struct sja1105_private *priv, int port)
{
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
struct sja1105_vlan_lookup_entry *vlan;
int cpu = pdata->cpu_port;
/* The CPU port is implicitly configured by
* configuring the front-panel ports
*/
if (port == cpu)
return;
vlan = priv->static_config.tables[BLK_IDX_VLAN_LOOKUP].entries;
priv->pvid[port] = DSA_8021Q_DIR_TX | DSA_8021Q_PORT(port);
vlan[port].vmemb_port = BIT(port) | BIT(cpu);
vlan[port].vlan_bc = BIT(port) | BIT(cpu);
vlan[port].tag_port = BIT(cpu);
vlan[port].vlanid = priv->pvid[port];
vlan[port].type_entry = SJA1110_VLAN_D_TAG;
}
static int sja1105_init_vlan(struct sja1105_private *priv)
{
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
struct sja1105_table *table;
int port;
table = &priv->static_config.tables[BLK_IDX_VLAN_LOOKUP];
table->entries = calloc(pdata->num_ports,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
table->entry_count = pdata->num_ports;
for (port = 0; port < pdata->num_ports; port++)
sja1105_setup_tagging(priv, port);
return 0;
}
static void
sja1105_port_allow_traffic(struct sja1105_l2_forwarding_entry *l2_fwd,
int from, int to)
{
l2_fwd[from].bc_domain |= BIT(to);
l2_fwd[from].reach_port |= BIT(to);
l2_fwd[from].fl_domain |= BIT(to);
}
static int sja1105_init_l2_forwarding(struct sja1105_private *priv)
{
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
struct sja1105_l2_forwarding_entry *l2fwd;
struct sja1105_table *table;
int cpu = pdata->cpu_port;
int i;
table = &priv->static_config.tables[BLK_IDX_L2_FORWARDING];
table->entries = calloc(SJA1105_MAX_L2_FORWARDING_COUNT,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
table->entry_count = SJA1105_MAX_L2_FORWARDING_COUNT;
l2fwd = table->entries;
/* First 5 entries define the forwarding rules */
for (i = 0; i < pdata->num_ports; i++) {
if (i == cpu)
continue;
sja1105_port_allow_traffic(l2fwd, i, cpu);
sja1105_port_allow_traffic(l2fwd, cpu, i);
}
/* Next 8 entries define VLAN PCP mapping from ingress to egress.
* Leave them unpopulated (implicitly 0) but present.
*/
return 0;
}
static int sja1105_init_l2_forwarding_params(struct sja1105_private *priv)
{
struct sja1105_l2_forwarding_params_entry default_l2fwd_params = {
/* Use a single memory partition for all ingress queues */
.part_spc = { SJA1105_MAX_FRAME_MEMORY, 0, 0, 0, 0, 0, 0, 0 },
};
struct sja1105_table *table;
table = &priv->static_config.tables[BLK_IDX_L2_FORWARDING_PARAMS];
table->entries = calloc(SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
table->entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT;
/* This table only has a single entry */
((struct sja1105_l2_forwarding_params_entry *)table->entries)[0] =
default_l2fwd_params;
return 0;
}
static int sja1105_init_general_params(struct sja1105_private *priv)
{
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
struct sja1105_general_params_entry default_general_params = {
/* No frame trapping */
.mac_fltres1 = 0x0,
.mac_flt1 = 0xffffffffffff,
.mac_fltres0 = 0x0,
.mac_flt0 = 0xffffffffffff,
.host_port = pdata->num_ports,
/* No mirroring => specify an out-of-range port value */
.mirr_port = pdata->num_ports,
/* No link-local trapping => specify an out-of-range port value
*/
.casc_port = pdata->num_ports,
/* Force the switch to see all traffic as untagged. */
.tpid = ETH_P_SJA1105,
.tpid2 = ETH_P_SJA1105,
};
struct sja1105_table *table;
table = &priv->static_config.tables[BLK_IDX_GENERAL_PARAMS];
table->entries = calloc(SJA1105_MAX_GENERAL_PARAMS_COUNT,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
table->entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT;
/* This table only has a single entry */
((struct sja1105_general_params_entry *)table->entries)[0] =
default_general_params;
return 0;
}
static void sja1105_setup_policer(struct sja1105_l2_policing_entry *policing,
int index, int mtu)
{
policing[index].sharindx = index;
policing[index].smax = 65535; /* Burst size in bytes */
policing[index].rate = SJA1105_RATE_MBPS(1000);
policing[index].maxlen = mtu;
policing[index].partition = 0;
}
static int sja1105_init_l2_policing(struct sja1105_private *priv)
{
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
struct sja1105_l2_policing_entry *policing;
struct sja1105_table *table;
int cpu = pdata->cpu_port;
int i, j, k;
table = &priv->static_config.tables[BLK_IDX_L2_POLICING];
table->entries = calloc(SJA1105_MAX_L2_POLICING_COUNT,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
table->entry_count = SJA1105_MAX_L2_POLICING_COUNT;
policing = table->entries;
/* k sweeps through all unicast policers (0-39).
* bcast sweeps through policers 40-44.
*/
for (i = 0, k = 0; i < pdata->num_ports; i++) {
int bcast = (pdata->num_ports * SJA1105_NUM_TC) + i;
int mtu = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN;
if (i == cpu)
mtu += VLAN_HLEN;
for (j = 0; j < SJA1105_NUM_TC; j++, k++)
sja1105_setup_policer(policing, k, mtu);
/* Set up this port's policer for broadcast traffic */
sja1105_setup_policer(policing, bcast, mtu);
}
return 0;
}
static int sja1105_init_mac_settings(struct sja1105_private *priv)
{
struct sja1105_mac_config_entry default_mac = {
/* Enable 1 priority queue on egress. */
.top = {0x1FF, 0, 0, 0, 0, 0, 0},
.base = {0x0, 0, 0, 0, 0, 0, 0, 0},
.enabled = {1, 0, 0, 0, 0, 0, 0, 0},
/* Will be overridden in sja1105_port_enable. */
.speed = priv->info->port_speed[SJA1105_SPEED_AUTO],
.egress = true,
.ingress = true,
};
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
struct sja1105_mac_config_entry *mac;
struct sja1105_table *table;
int port;
table = &priv->static_config.tables[BLK_IDX_MAC_CONFIG];
table->entries = calloc(pdata->num_ports,
table->ops->unpacked_entry_size);
if (!table->entries)
return -ENOMEM;
table->entry_count = pdata->num_ports;
mac = table->entries;
for (port = 0; port < pdata->num_ports; port++) {
mac[port] = default_mac;
/* Internal VLAN (pvid) to apply to untagged ingress */
mac[port].vlanid = priv->pvid[port];
}
return 0;
}
static int sja1105_static_config_init(struct sja1105_private *priv)
{
struct sja1105_static_config *config = &priv->static_config;
const struct sja1105_table_ops *static_ops = priv->info->static_ops;
u64 device_id = priv->info->device_id;
enum sja1105_blk_idx i;
int rc;
*config = (struct sja1105_static_config) {0};
/* Transfer static_ops array from priv into per-table ops
* for handier access
*/
for (i = 0; i < BLK_IDX_MAX; i++)
config->tables[i].ops = &static_ops[i];
config->device_id = device_id;
/* Build initial static configuration, to be fixed up during runtime */
rc = sja1105_init_vlan(priv);
if (rc < 0)
return rc;
rc = sja1105_init_mac_settings(priv);
if (rc < 0)
return rc;
rc = sja1105_init_mii_settings(priv);
if (rc < 0)
return rc;
rc = sja1105_init_l2_forwarding(priv);
if (rc < 0)
return rc;
rc = sja1105_init_l2_forwarding_params(priv);
if (rc < 0)
return rc;
rc = sja1105_init_l2_policing(priv);
if (rc < 0)
return rc;
rc = sja1105_init_general_params(priv);
if (rc < 0)
return rc;
return 0;
}
static void sja1105_static_config_free(struct sja1105_static_config *config)
{
enum sja1105_blk_idx i;
for (i = 0; i < BLK_IDX_MAX; i++) {
if (config->tables[i].entry_count) {
free(config->tables[i].entries);
config->tables[i].entry_count = 0;
}
}
}
static void sja1105_cgu_idiv_packing(void *buf, struct sja1105_cgu_idiv *idiv,
enum packing_op op)
{
const int size = 4;
sja1105_packing(buf, &idiv->clksrc, 28, 24, size, op);
sja1105_packing(buf, &idiv->autoblock, 11, 11, size, op);
sja1105_packing(buf, &idiv->idiv, 5, 2, size, op);
sja1105_packing(buf, &idiv->pd, 0, 0, size, op);
}
static int sja1105_cgu_idiv_config(struct sja1105_private *priv, int port,
bool enabled, int factor)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
struct sja1105_cgu_idiv idiv;
if (regs->cgu_idiv[port] == SJA1105_RSV_ADDR)
return 0;
if (enabled && factor != 1 && factor != 10)
return -ERANGE;
/* Payload for packed_buf */
idiv.clksrc = 0x0A; /* 25MHz */
idiv.autoblock = 1; /* Block clk automatically */
idiv.idiv = factor - 1; /* Divide by 1 or 10 */
idiv.pd = enabled ? 0 : 1; /* Power down? */
sja1105_cgu_idiv_packing(packed_buf, &idiv, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->cgu_idiv[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static void
sja1105_cgu_mii_control_packing(void *buf, struct sja1105_cgu_mii_ctrl *cmd,
enum packing_op op)
{
const int size = 4;
sja1105_packing(buf, &cmd->clksrc, 28, 24, size, op);
sja1105_packing(buf, &cmd->autoblock, 11, 11, size, op);
sja1105_packing(buf, &cmd->pd, 0, 0, size, op);
}
static int sja1105_cgu_mii_tx_clk_config(struct sja1105_private *priv,
int port, sja1105_mii_role_t role)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cgu_mii_ctrl mii_tx_clk;
const int mac_clk_sources[] = {
CLKSRC_MII0_TX_CLK,
CLKSRC_MII1_TX_CLK,
CLKSRC_MII2_TX_CLK,
CLKSRC_MII3_TX_CLK,
CLKSRC_MII4_TX_CLK,
};
const int phy_clk_sources[] = {
CLKSRC_IDIV0,
CLKSRC_IDIV1,
CLKSRC_IDIV2,
CLKSRC_IDIV3,
CLKSRC_IDIV4,
};
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
int clksrc;
if (regs->mii_tx_clk[port] == SJA1105_RSV_ADDR)
return 0;
if (role == XMII_MAC)
clksrc = mac_clk_sources[port];
else
clksrc = phy_clk_sources[port];
/* Payload for packed_buf */
mii_tx_clk.clksrc = clksrc;
mii_tx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
mii_tx_clk.pd = 0; /* Power Down off => enabled */
sja1105_cgu_mii_control_packing(packed_buf, &mii_tx_clk, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->mii_tx_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int
sja1105_cgu_mii_rx_clk_config(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
struct sja1105_cgu_mii_ctrl mii_rx_clk;
const int clk_sources[] = {
CLKSRC_MII0_RX_CLK,
CLKSRC_MII1_RX_CLK,
CLKSRC_MII2_RX_CLK,
CLKSRC_MII3_RX_CLK,
CLKSRC_MII4_RX_CLK,
};
if (regs->mii_rx_clk[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload for packed_buf */
mii_rx_clk.clksrc = clk_sources[port];
mii_rx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
mii_rx_clk.pd = 0; /* Power Down off => enabled */
sja1105_cgu_mii_control_packing(packed_buf, &mii_rx_clk, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->mii_rx_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int
sja1105_cgu_mii_ext_tx_clk_config(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cgu_mii_ctrl mii_ext_tx_clk;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
const int clk_sources[] = {
CLKSRC_IDIV0,
CLKSRC_IDIV1,
CLKSRC_IDIV2,
CLKSRC_IDIV3,
CLKSRC_IDIV4,
};
if (regs->mii_ext_tx_clk[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload for packed_buf */
mii_ext_tx_clk.clksrc = clk_sources[port];
mii_ext_tx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
mii_ext_tx_clk.pd = 0; /* Power Down off => enabled */
sja1105_cgu_mii_control_packing(packed_buf, &mii_ext_tx_clk, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->mii_ext_tx_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int
sja1105_cgu_mii_ext_rx_clk_config(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cgu_mii_ctrl mii_ext_rx_clk;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
const int clk_sources[] = {
CLKSRC_IDIV0,
CLKSRC_IDIV1,
CLKSRC_IDIV2,
CLKSRC_IDIV3,
CLKSRC_IDIV4,
};
if (regs->mii_ext_rx_clk[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload for packed_buf */
mii_ext_rx_clk.clksrc = clk_sources[port];
mii_ext_rx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
mii_ext_rx_clk.pd = 0; /* Power Down off => enabled */
sja1105_cgu_mii_control_packing(packed_buf, &mii_ext_rx_clk, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->mii_ext_rx_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int sja1105_mii_clocking_setup(struct sja1105_private *priv, int port,
sja1105_mii_role_t role)
{
int rc;
rc = sja1105_cgu_idiv_config(priv, port, (role == XMII_PHY), 1);
if (rc < 0)
return rc;
rc = sja1105_cgu_mii_tx_clk_config(priv, port, role);
if (rc < 0)
return rc;
rc = sja1105_cgu_mii_rx_clk_config(priv, port);
if (rc < 0)
return rc;
if (role == XMII_PHY) {
rc = sja1105_cgu_mii_ext_tx_clk_config(priv, port);
if (rc < 0)
return rc;
rc = sja1105_cgu_mii_ext_rx_clk_config(priv, port);
if (rc < 0)
return rc;
}
return 0;
}
static void
sja1105_cgu_pll_control_packing(void *buf, struct sja1105_cgu_pll_ctrl *cmd,
enum packing_op op)
{
const int size = 4;
sja1105_packing(buf, &cmd->pllclksrc, 28, 24, size, op);
sja1105_packing(buf, &cmd->msel, 23, 16, size, op);
sja1105_packing(buf, &cmd->autoblock, 11, 11, size, op);
sja1105_packing(buf, &cmd->psel, 9, 8, size, op);
sja1105_packing(buf, &cmd->direct, 7, 7, size, op);
sja1105_packing(buf, &cmd->fbsel, 6, 6, size, op);
sja1105_packing(buf, &cmd->bypass, 1, 1, size, op);
sja1105_packing(buf, &cmd->pd, 0, 0, size, op);
}
static int sja1105_cgu_rgmii_tx_clk_config(struct sja1105_private *priv,
int port, u64 speed)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cgu_mii_ctrl txc;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
int clksrc;
if (regs->rgmii_tx_clk[port] == SJA1105_RSV_ADDR)
return 0;
if (speed == priv->info->port_speed[SJA1105_SPEED_1000MBPS]) {
clksrc = CLKSRC_PLL0;
} else {
int clk_sources[] = {CLKSRC_IDIV0, CLKSRC_IDIV1, CLKSRC_IDIV2,
CLKSRC_IDIV3, CLKSRC_IDIV4};
clksrc = clk_sources[port];
}
/* RGMII: 125MHz for 1000, 25MHz for 100, 2.5MHz for 10 */
txc.clksrc = clksrc;
/* Autoblock clk while changing clksrc */
txc.autoblock = 1;
/* Power Down off => enabled */
txc.pd = 0;
sja1105_cgu_mii_control_packing(packed_buf, &txc, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rgmii_tx_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
/* AGU */
static void
sja1105_cfg_pad_mii_packing(void *buf, struct sja1105_cfg_pad_mii *cmd,
enum packing_op op)
{
const int size = 4;
sja1105_packing(buf, &cmd->d32_os, 28, 27, size, op);
sja1105_packing(buf, &cmd->d32_ih, 26, 26, size, op);
sja1105_packing(buf, &cmd->d32_ipud, 25, 24, size, op);
sja1105_packing(buf, &cmd->d10_os, 20, 19, size, op);
sja1105_packing(buf, &cmd->d10_ih, 18, 18, size, op);
sja1105_packing(buf, &cmd->d10_ipud, 17, 16, size, op);
sja1105_packing(buf, &cmd->ctrl_os, 12, 11, size, op);
sja1105_packing(buf, &cmd->ctrl_ih, 10, 10, size, op);
sja1105_packing(buf, &cmd->ctrl_ipud, 9, 8, size, op);
sja1105_packing(buf, &cmd->clk_os, 4, 3, size, op);
sja1105_packing(buf, &cmd->clk_ih, 2, 2, size, op);
sja1105_packing(buf, &cmd->clk_ipud, 1, 0, size, op);
}
static void
sja1110_cfg_pad_mii_id_packing(void *buf, struct sja1105_cfg_pad_mii_id *cmd,
enum packing_op op)
{
const int size = SJA1105_SIZE_CGU_CMD;
u64 range = 4;
/* Fields RXC_RANGE and TXC_RANGE select the input frequency range:
* 0 = 2.5MHz
* 1 = 25MHz
* 2 = 50MHz
* 3 = 125MHz
* 4 = Automatically determined by port speed.
* There's no point in defining a structure different than the one for
* SJA1105, so just hardcode the frequency range to automatic, just as
* before.
*/
sja1105_packing(buf, &cmd->rxc_stable_ovr, 26, 26, size, op);
sja1105_packing(buf, &cmd->rxc_delay, 25, 21, size, op);
sja1105_packing(buf, &range, 20, 18, size, op);
sja1105_packing(buf, &cmd->rxc_bypass, 17, 17, size, op);
sja1105_packing(buf, &cmd->rxc_pd, 16, 16, size, op);
sja1105_packing(buf, &cmd->txc_stable_ovr, 10, 10, size, op);
sja1105_packing(buf, &cmd->txc_delay, 9, 5, size, op);
sja1105_packing(buf, &range, 4, 2, size, op);
sja1105_packing(buf, &cmd->txc_bypass, 1, 1, size, op);
sja1105_packing(buf, &cmd->txc_pd, 0, 0, size, op);
}
static int sja1105_rgmii_cfg_pad_tx_config(struct sja1105_private *priv,
int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cfg_pad_mii pad_mii_tx = {0};
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
if (regs->pad_mii_tx[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload */
pad_mii_tx.d32_os = 3; /* TXD[3:2] output stage: */
/* high noise/high speed */
pad_mii_tx.d10_os = 3; /* TXD[1:0] output stage: */
/* high noise/high speed */
pad_mii_tx.d32_ipud = 2; /* TXD[3:2] input stage: */
/* plain input (default) */
pad_mii_tx.d10_ipud = 2; /* TXD[1:0] input stage: */
/* plain input (default) */
pad_mii_tx.ctrl_os = 3; /* TX_CTL / TX_ER output stage */
pad_mii_tx.ctrl_ipud = 2; /* TX_CTL / TX_ER input stage (default) */
pad_mii_tx.clk_os = 3; /* TX_CLK output stage */
pad_mii_tx.clk_ih = 0; /* TX_CLK input hysteresis (default) */
pad_mii_tx.clk_ipud = 2; /* TX_CLK input stage (default) */
sja1105_cfg_pad_mii_packing(packed_buf, &pad_mii_tx, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_tx[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int sja1105_cfg_pad_rx_config(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cfg_pad_mii pad_mii_rx = {0};
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
if (regs->pad_mii_rx[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload */
pad_mii_rx.d32_ih = 0; /* RXD[3:2] input stage hysteresis: */
/* non-Schmitt (default) */
pad_mii_rx.d32_ipud = 2; /* RXD[3:2] input weak pull-up/down */
/* plain input (default) */
pad_mii_rx.d10_ih = 0; /* RXD[1:0] input stage hysteresis: */
/* non-Schmitt (default) */
pad_mii_rx.d10_ipud = 2; /* RXD[1:0] input weak pull-up/down */
/* plain input (default) */
pad_mii_rx.ctrl_ih = 0; /* RX_DV/CRS_DV/RX_CTL and RX_ER */
/* input stage hysteresis: */
/* non-Schmitt (default) */
pad_mii_rx.ctrl_ipud = 3; /* RX_DV/CRS_DV/RX_CTL and RX_ER */
/* input stage weak pull-up/down: */
/* pull-down */
pad_mii_rx.clk_os = 2; /* RX_CLK/RXC output stage: */
/* medium noise/fast speed (default) */
pad_mii_rx.clk_ih = 0; /* RX_CLK/RXC input hysteresis: */
/* non-Schmitt (default) */
pad_mii_rx.clk_ipud = 2; /* RX_CLK/RXC input pull-up/down: */
/* plain input (default) */
sja1105_cfg_pad_mii_packing(packed_buf, &pad_mii_rx, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_rx[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static void
sja1105_cfg_pad_mii_id_packing(void *buf, struct sja1105_cfg_pad_mii_id *cmd,
enum packing_op op)
{
const int size = SJA1105_SIZE_CGU_CMD;
sja1105_packing(buf, &cmd->rxc_stable_ovr, 15, 15, size, op);
sja1105_packing(buf, &cmd->rxc_delay, 14, 10, size, op);
sja1105_packing(buf, &cmd->rxc_bypass, 9, 9, size, op);
sja1105_packing(buf, &cmd->rxc_pd, 8, 8, size, op);
sja1105_packing(buf, &cmd->txc_stable_ovr, 7, 7, size, op);
sja1105_packing(buf, &cmd->txc_delay, 6, 2, size, op);
sja1105_packing(buf, &cmd->txc_bypass, 1, 1, size, op);
sja1105_packing(buf, &cmd->txc_pd, 0, 0, size, op);
}
/* Valid range in degrees is an integer between 73.8 and 101.7 */
static u64 sja1105_rgmii_delay(u64 phase)
{
/* UM11040.pdf: The delay in degree phase is 73.8 + delay_tune * 0.9.
* To avoid floating point operations we'll multiply by 10
* and get 1 decimal point precision.
*/
phase *= 10;
return (phase - 738) / 9;
}
static int sja1105pqrs_setup_rgmii_delay(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cfg_pad_mii_id pad_mii_id = {0};
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
int rc;
if (priv->rgmii_rx_delay[port])
pad_mii_id.rxc_delay = sja1105_rgmii_delay(90);
if (priv->rgmii_tx_delay[port])
pad_mii_id.txc_delay = sja1105_rgmii_delay(90);
/* Stage 1: Turn the RGMII delay lines off. */
pad_mii_id.rxc_bypass = 1;
pad_mii_id.rxc_pd = 1;
pad_mii_id.txc_bypass = 1;
pad_mii_id.txc_pd = 1;
sja1105_cfg_pad_mii_id_packing(packed_buf, &pad_mii_id, PACK);
rc = sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_id[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
if (rc < 0)
return rc;
/* Stage 2: Turn the RGMII delay lines on. */
if (priv->rgmii_rx_delay[port]) {
pad_mii_id.rxc_bypass = 0;
pad_mii_id.rxc_pd = 0;
}
if (priv->rgmii_tx_delay[port]) {
pad_mii_id.txc_bypass = 0;
pad_mii_id.txc_pd = 0;
}
sja1105_cfg_pad_mii_id_packing(packed_buf, &pad_mii_id, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_id[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int sja1110_setup_rgmii_delay(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cfg_pad_mii_id pad_mii_id = {0};
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
pad_mii_id.rxc_pd = 1;
pad_mii_id.txc_pd = 1;
if (priv->rgmii_rx_delay[port]) {
pad_mii_id.rxc_delay = sja1105_rgmii_delay(90);
/* The "BYPASS" bit in SJA1110 is actually a "don't bypass" */
pad_mii_id.rxc_bypass = 1;
pad_mii_id.rxc_pd = 0;
}
if (priv->rgmii_tx_delay[port]) {
pad_mii_id.txc_delay = sja1105_rgmii_delay(90);
pad_mii_id.txc_bypass = 1;
pad_mii_id.txc_pd = 0;
}
sja1110_cfg_pad_mii_id_packing(packed_buf, &pad_mii_id, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_id[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int sja1105_rgmii_clocking_setup(struct sja1105_private *priv, int port,
sja1105_mii_role_t role)
{
struct sja1105_mac_config_entry *mac;
struct udevice *dev = priv->dev;
u64 speed;
int rc;
mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;
speed = mac[port].speed;
if (speed == priv->info->port_speed[SJA1105_SPEED_1000MBPS]) {
/* 1000Mbps, IDIV disabled (125 MHz) */
rc = sja1105_cgu_idiv_config(priv, port, false, 1);
} else if (speed == priv->info->port_speed[SJA1105_SPEED_100MBPS]) {
/* 100Mbps, IDIV enabled, divide by 1 (25 MHz) */
rc = sja1105_cgu_idiv_config(priv, port, true, 1);
} else if (speed == priv->info->port_speed[SJA1105_SPEED_10MBPS]) {
/* 10Mbps, IDIV enabled, divide by 10 (2.5 MHz) */
rc = sja1105_cgu_idiv_config(priv, port, true, 10);
} else if (speed == priv->info->port_speed[SJA1105_SPEED_AUTO]) {
/* Skip CGU configuration if there is no speed available
* (e.g. link is not established yet)
*/
dev_dbg(dev, "Speed not available, skipping CGU config\n");
return 0;
} else {
rc = -EINVAL;
}
if (rc < 0) {
dev_err(dev, "Failed to configure idiv\n");
return rc;
}
rc = sja1105_cgu_rgmii_tx_clk_config(priv, port, speed);
if (rc < 0) {
dev_err(dev, "Failed to configure RGMII Tx clock\n");
return rc;
}
rc = sja1105_rgmii_cfg_pad_tx_config(priv, port);
if (rc < 0) {
dev_err(dev, "Failed to configure Tx pad registers\n");
return rc;
}
if (!priv->info->setup_rgmii_delay)
return 0;
return priv->info->setup_rgmii_delay(priv, port);
}
static int sja1105_cgu_rmii_ref_clk_config(struct sja1105_private *priv,
int port)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
struct sja1105_cgu_mii_ctrl ref_clk;
const int clk_sources[] = {
CLKSRC_MII0_TX_CLK,
CLKSRC_MII1_TX_CLK,
CLKSRC_MII2_TX_CLK,
CLKSRC_MII3_TX_CLK,
CLKSRC_MII4_TX_CLK,
};
if (regs->rmii_ref_clk[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload for packed_buf */
ref_clk.clksrc = clk_sources[port];
ref_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
ref_clk.pd = 0; /* Power Down off => enabled */
sja1105_cgu_mii_control_packing(packed_buf, &ref_clk, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rmii_ref_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int
sja1105_cgu_rmii_ext_tx_clk_config(struct sja1105_private *priv, int port)
{
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_cgu_mii_ctrl ext_tx_clk;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
if (regs->rmii_ext_tx_clk[port] == SJA1105_RSV_ADDR)
return 0;
/* Payload for packed_buf */
ext_tx_clk.clksrc = CLKSRC_PLL1;
ext_tx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
ext_tx_clk.pd = 0; /* Power Down off => enabled */
sja1105_cgu_mii_control_packing(packed_buf, &ext_tx_clk, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->rmii_ext_tx_clk[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
static int sja1105_cgu_rmii_pll_config(struct sja1105_private *priv)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
struct sja1105_cgu_pll_ctrl pll = {0};
int rc;
if (regs->rmii_pll1 == SJA1105_RSV_ADDR)
return 0;
/* Step 1: PLL1 setup for 50Mhz */
pll.pllclksrc = 0xA;
pll.msel = 0x1;
pll.autoblock = 0x1;
pll.psel = 0x1;
pll.direct = 0x0;
pll.fbsel = 0x1;
pll.bypass = 0x0;
pll.pd = 0x1;
sja1105_cgu_pll_control_packing(packed_buf, &pll, PACK);
rc = sja1105_xfer_buf(priv, SPI_WRITE, regs->rmii_pll1, packed_buf,
SJA1105_SIZE_CGU_CMD);
if (rc < 0)
return rc;
/* Step 2: Enable PLL1 */
pll.pd = 0x0;
sja1105_cgu_pll_control_packing(packed_buf, &pll, PACK);
rc = sja1105_xfer_buf(priv, SPI_WRITE, regs->rmii_pll1, packed_buf,
SJA1105_SIZE_CGU_CMD);
return rc;
}
static int sja1105_rmii_clocking_setup(struct sja1105_private *priv, int port,
sja1105_mii_role_t role)
{
int rc;
/* AH1601.pdf chapter 2.5.1. Sources */
if (role == XMII_MAC) {
/* Configure and enable PLL1 for 50Mhz output */
rc = sja1105_cgu_rmii_pll_config(priv);
if (rc < 0)
return rc;
}
/* Disable IDIV for this port */
rc = sja1105_cgu_idiv_config(priv, port, false, 1);
if (rc < 0)
return rc;
/* Source to sink mappings */
rc = sja1105_cgu_rmii_ref_clk_config(priv, port);
if (rc < 0)
return rc;
if (role == XMII_MAC) {
rc = sja1105_cgu_rmii_ext_tx_clk_config(priv, port);
if (rc < 0)
return rc;
}
return 0;
}
static int sja1105_pcs_read(struct sja1105_private *priv, int addr,
int devad, int regnum)
{
return priv->mdio_pcs->read(priv->mdio_pcs, addr, devad, regnum);
}
static int sja1105_pcs_write(struct sja1105_private *priv, int addr,
int devad, int regnum, u16 val)
{
return priv->mdio_pcs->write(priv->mdio_pcs, addr, devad, regnum, val);
}
/* In NXP SJA1105, the PCS is integrated with a PMA that has the TX lane
* polarity inverted by default (PLUS is MINUS, MINUS is PLUS). To obtain
* normal non-inverted behavior, the TX lane polarity must be inverted in the
* PCS, via the DIGITAL_CONTROL_2 register.
*/
static int sja1105_pma_config(struct sja1105_private *priv, int port)
{
return sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
DW_VR_MII_DIG_CTRL2,
DW_VR_MII_DIG_CTRL2_TX_POL_INV);
}
static int sja1110_pma_config(struct sja1105_private *priv, int port)
{
u16 txpll_fbdiv = 0x19, txpll_refdiv = 0x1;
u16 rxpll_fbdiv = 0x19, rxpll_refdiv = 0x1;
u16 rx_cdr_ctle = 0x212a;
u16 val;
int rc;
/* Program TX PLL feedback divider and reference divider settings for
* correct oscillation frequency.
*/
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, SJA1110_TXPLL_CTRL0,
SJA1110_TXPLL_FBDIV(txpll_fbdiv));
if (rc < 0)
return rc;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, SJA1110_TXPLL_CTRL1,
SJA1110_TXPLL_REFDIV(txpll_refdiv));
if (rc < 0)
return rc;
/* Program transmitter amplitude and disable amplitude trimming */
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
SJA1110_LANE_DRIVER1_0, SJA1110_TXDRV(0x5));
if (rc < 0)
return rc;
val = SJA1110_TXDRVTRIM_LSB(0xffffffull);
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
SJA1110_LANE_DRIVER2_0, val);
if (rc < 0)
return rc;
val = SJA1110_TXDRVTRIM_MSB(0xffffffull) | SJA1110_LANE_DRIVER2_1_RSV;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
SJA1110_LANE_DRIVER2_1, val);
if (rc < 0)
return rc;
/* Enable input and output resistor terminations for low BER. */
val = SJA1110_ACCOUPLE_RXVCM_EN | SJA1110_CDR_GAIN |
SJA1110_RXRTRIM(4) | SJA1110_RXTEN | SJA1110_TXPLL_BWSEL |
SJA1110_TXRTRIM(3) | SJA1110_TXTEN;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, SJA1110_LANE_TRIM,
val);
if (rc < 0)
return rc;
/* Select PCS as transmitter data source. */
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
SJA1110_LANE_DATAPATH_1, 0);
if (rc < 0)
return rc;
/* Program RX PLL feedback divider and reference divider for correct
* oscillation frequency.
*/
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, SJA1110_RXPLL_CTRL0,
SJA1110_RXPLL_FBDIV(rxpll_fbdiv));
if (rc < 0)
return rc;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, SJA1110_RXPLL_CTRL1,
SJA1110_RXPLL_REFDIV(rxpll_refdiv));
if (rc < 0)
return rc;
/* Program threshold for receiver signal detector.
* Enable control of RXPLL by receiver signal detector to disable RXPLL
* when an input signal is not present.
*/
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
SJA1110_RX_DATA_DETECT, 0x0005);
if (rc < 0)
return rc;
/* Enable TX and RX PLLs and circuits.
* Release reset of PMA to enable data flow to/from PCS.
*/
rc = sja1105_pcs_read(priv, port, MDIO_MMD_VEND2,
SJA1110_POWERDOWN_ENABLE);
if (rc < 0)
return rc;
val = rc & ~(SJA1110_TXPLL_PD | SJA1110_TXPD | SJA1110_RXCH_PD |
SJA1110_RXBIAS_PD | SJA1110_RESET_SER_EN |
SJA1110_RESET_SER | SJA1110_RESET_DES);
val |= SJA1110_RXPKDETEN | SJA1110_RCVEN;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2,
SJA1110_POWERDOWN_ENABLE, val);
if (rc < 0)
return rc;
/* Program continuous-time linear equalizer (CTLE) settings. */
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, SJA1110_RX_CDR_CTLE,
rx_cdr_ctle);
if (rc < 0)
return rc;
return 0;
}
static int sja1105_xpcs_config_aneg_c37_sgmii(struct sja1105_private *priv,
int port)
{
int rc;
rc = sja1105_pcs_read(priv, port, MDIO_MMD_VEND2, MDIO_CTRL1);
if (rc < 0)
return rc;
rc &= ~MDIO_AN_CTRL1_ENABLE;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, MDIO_CTRL1,
rc);
if (rc < 0)
return rc;
rc = sja1105_pcs_read(priv, port, MDIO_MMD_VEND2, DW_VR_MII_AN_CTRL);
if (rc < 0)
return rc;
rc &= ~(DW_VR_MII_PCS_MODE_MASK | DW_VR_MII_TX_CONFIG_MASK);
rc |= (DW_VR_MII_PCS_MODE_C37_SGMII <<
DW_VR_MII_AN_CTRL_PCS_MODE_SHIFT &
DW_VR_MII_PCS_MODE_MASK);
rc |= (DW_VR_MII_TX_CONFIG_MAC_SIDE_SGMII <<
DW_VR_MII_AN_CTRL_TX_CONFIG_SHIFT &
DW_VR_MII_TX_CONFIG_MASK);
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, DW_VR_MII_AN_CTRL,
rc);
if (rc < 0)
return rc;
rc = sja1105_pcs_read(priv, port, MDIO_MMD_VEND2, DW_VR_MII_DIG_CTRL1);
if (rc < 0)
return rc;
if (priv->xpcs_cfg[port].inband_an)
rc |= DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW;
else
rc &= ~DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW;
rc = sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, DW_VR_MII_DIG_CTRL1,
rc);
if (rc < 0)
return rc;
rc = sja1105_pcs_read(priv, port, MDIO_MMD_VEND2, MDIO_CTRL1);
if (rc < 0)
return rc;
if (priv->xpcs_cfg[port].inband_an)
rc |= MDIO_AN_CTRL1_ENABLE;
else
rc &= ~MDIO_AN_CTRL1_ENABLE;
return sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, MDIO_CTRL1, rc);
}
static int sja1105_xpcs_link_up_sgmii(struct sja1105_private *priv, int port)
{
int val = BMCR_FULLDPLX;
if (priv->xpcs_cfg[port].inband_an)
return 0;
switch (priv->xpcs_cfg[port].speed) {
case SPEED_1000:
val = BMCR_SPEED1000;
break;
case SPEED_100:
val = BMCR_SPEED100;
break;
case SPEED_10:
val = BMCR_SPEED10;
break;
default:
dev_err(priv->dev, "Invalid PCS speed %d\n",
priv->xpcs_cfg[port].speed);
return -EINVAL;
}
return sja1105_pcs_write(priv, port, MDIO_MMD_VEND2, MDIO_CTRL1, val);
}
static int sja1105_sgmii_setup(struct sja1105_private *priv, int port)
{
int rc;
rc = sja1105_xpcs_config_aneg_c37_sgmii(priv, port);
if (rc)
return rc;
rc = sja1105_xpcs_link_up_sgmii(priv, port);
if (rc)
return rc;
return priv->info->pma_config(priv, port);
}
static int sja1105_clocking_setup_port(struct sja1105_private *priv, int port)
{
struct sja1105_xmii_params_entry *mii;
sja1105_phy_interface_t phy_mode;
sja1105_mii_role_t role;
int rc;
mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries;
/* RGMII etc */
phy_mode = mii->xmii_mode[port];
/* MAC or PHY, for applicable types (not RGMII) */
role = mii->phy_mac[port];
switch (phy_mode) {
case XMII_MODE_MII:
rc = sja1105_mii_clocking_setup(priv, port, role);
break;
case XMII_MODE_RMII:
rc = sja1105_rmii_clocking_setup(priv, port, role);
break;
case XMII_MODE_RGMII:
rc = sja1105_rgmii_clocking_setup(priv, port, role);
break;
case XMII_MODE_SGMII:
rc = sja1105_sgmii_setup(priv, port);
break;
default:
return -EINVAL;
}
if (rc)
return rc;
/* Internally pull down the RX_DV/CRS_DV/RX_CTL and RX_ER inputs */
return sja1105_cfg_pad_rx_config(priv, port);
}
static int sja1105_clocking_setup(struct sja1105_private *priv)
{
struct dsa_pdata *pdata = dev_get_uclass_plat(priv->dev);
int port, rc;
for (port = 0; port < pdata->num_ports; port++) {
rc = sja1105_clocking_setup_port(priv, port);
if (rc < 0)
return rc;
}
return 0;
}
static int sja1105_pcs_mdio_read(struct mii_dev *bus, int phy, int mmd, int reg)
{
u8 packed_buf[SJA1105_SIZE_MDIO_CMD] = {0};
struct sja1105_private *priv = bus->priv;
const int size = SJA1105_SIZE_MDIO_CMD;
u64 addr, tmp;
int rc;
if (mmd == MDIO_DEVAD_NONE)
return -ENODEV;
if (!priv->info->supports_sgmii[phy])
return -ENODEV;
addr = (mmd << 16) | (reg & GENMASK(15, 0));
if (mmd != MDIO_MMD_VEND1 && mmd != MDIO_MMD_VEND2)
return 0xffff;
rc = sja1105_xfer_buf(priv, SPI_READ, addr, packed_buf, size);
if (rc < 0)
return rc;
sja1105_packing(packed_buf, &tmp, 31, 0, size, UNPACK);
return tmp & 0xffff;
}
static int sja1105_pcs_mdio_write(struct mii_dev *bus, int phy, int mmd,
int reg, u16 val)
{
u8 packed_buf[SJA1105_SIZE_MDIO_CMD] = {0};
struct sja1105_private *priv = bus->priv;
const int size = SJA1105_SIZE_MDIO_CMD;
u64 addr, tmp;
if (mmd == MDIO_DEVAD_NONE)
return -ENODEV;
if (!priv->info->supports_sgmii[phy])
return -ENODEV;
addr = (mmd << 16) | (reg & GENMASK(15, 0));
tmp = val;
if (mmd != MDIO_MMD_VEND1 && mmd != MDIO_MMD_VEND2)
return -ENODEV;
sja1105_packing(packed_buf, &tmp, 31, 0, size, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, addr, packed_buf, size);
}
static int sja1110_pcs_mdio_read(struct mii_dev *bus, int phy, int mmd, int reg)
{
struct sja1105_private *priv = bus->priv;
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_MDIO_CMD] = {0};
const int size = SJA1105_SIZE_MDIO_CMD;
int offset, bank;
u64 addr, tmp;
int rc;
if (mmd == MDIO_DEVAD_NONE)
return -ENODEV;
if (regs->pcs_base[phy] == SJA1105_RSV_ADDR)
return -ENODEV;
addr = (mmd << 16) | (reg & GENMASK(15, 0));
bank = addr >> 8;
offset = addr & GENMASK(7, 0);
/* This addressing scheme reserves register 0xff for the bank address
* register, so that can never be addressed.
*/
if (offset == 0xff)
return -ENODEV;
tmp = bank;
sja1105_packing(packed_buf, &tmp, 31, 0, size, PACK);
rc = sja1105_xfer_buf(priv, SPI_WRITE,
regs->pcs_base[phy] + SJA1110_PCS_BANK_REG,
packed_buf, size);
if (rc < 0)
return rc;
rc = sja1105_xfer_buf(priv, SPI_READ, regs->pcs_base[phy] + offset,
packed_buf, size);
if (rc < 0)
return rc;
sja1105_packing(packed_buf, &tmp, 31, 0, size, UNPACK);
return tmp & 0xffff;
}
static int sja1110_pcs_mdio_write(struct mii_dev *bus, int phy, int mmd,
int reg, u16 val)
{
struct sja1105_private *priv = bus->priv;
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_MDIO_CMD] = {0};
const int size = SJA1105_SIZE_MDIO_CMD;
int offset, bank;
u64 addr, tmp;
int rc;
if (mmd == MDIO_DEVAD_NONE)
return -ENODEV;
if (regs->pcs_base[phy] == SJA1105_RSV_ADDR)
return -ENODEV;
addr = (mmd << 16) | (reg & GENMASK(15, 0));
bank = addr >> 8;
offset = addr & GENMASK(7, 0);
/* This addressing scheme reserves register 0xff for the bank address
* register, so that can never be addressed.
*/
if (offset == 0xff)
return -ENODEV;
tmp = bank;
sja1105_packing(packed_buf, &tmp, 31, 0, size, PACK);
rc = sja1105_xfer_buf(priv, SPI_WRITE,
regs->pcs_base[phy] + SJA1110_PCS_BANK_REG,
packed_buf, size);
if (rc < 0)
return rc;
tmp = val;
sja1105_packing(packed_buf, &tmp, 31, 0, size, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->pcs_base[phy] + offset,
packed_buf, size);
}
static int sja1105_mdiobus_register(struct sja1105_private *priv)
{
struct udevice *dev = priv->dev;
struct mii_dev *bus;
int rc;
if (!priv->info->pcs_mdio_read || !priv->info->pcs_mdio_write)
return 0;
bus = mdio_alloc();
if (!bus)
return -ENOMEM;
snprintf(bus->name, MDIO_NAME_LEN, "%s-pcs", dev->name);
bus->read = priv->info->pcs_mdio_read;
bus->write = priv->info->pcs_mdio_write;
bus->priv = priv;
rc = mdio_register(bus);
if (rc) {
mdio_free(bus);
return rc;
}
priv->mdio_pcs = bus;
return 0;
}
static void sja1105_mdiobus_unregister(struct sja1105_private *priv)
{
if (!priv->mdio_pcs)
return;
mdio_unregister(priv->mdio_pcs);
mdio_free(priv->mdio_pcs);
}
static const struct sja1105_regs sja1105et_regs = {
.device_id = 0x0,
.prod_id = 0x100BC3,
.status = 0x1,
.port_control = 0x11,
.config = 0x020000,
.rgu = 0x100440,
/* UM10944.pdf, Table 86, ACU Register overview */
.pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
.pad_mii_rx = {0x100801, 0x100803, 0x100805, 0x100807, 0x100809},
.rmii_pll1 = 0x10000A,
.cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
/* UM10944.pdf, Table 78, CGU Register overview */
.mii_tx_clk = {0x100013, 0x10001A, 0x100021, 0x100028, 0x10002F},
.mii_rx_clk = {0x100014, 0x10001B, 0x100022, 0x100029, 0x100030},
.mii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034},
.mii_ext_rx_clk = {0x100019, 0x100020, 0x100027, 0x10002E, 0x100035},
.rgmii_tx_clk = {0x100016, 0x10001D, 0x100024, 0x10002B, 0x100032},
.rmii_ref_clk = {0x100015, 0x10001C, 0x100023, 0x10002A, 0x100031},
.rmii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034},
};
static const struct sja1105_regs sja1105pqrs_regs = {
.device_id = 0x0,
.prod_id = 0x100BC3,
.status = 0x1,
.port_control = 0x12,
.config = 0x020000,
.rgu = 0x100440,
/* UM10944.pdf, Table 86, ACU Register overview */
.pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
.pad_mii_rx = {0x100801, 0x100803, 0x100805, 0x100807, 0x100809},
.pad_mii_id = {0x100810, 0x100811, 0x100812, 0x100813, 0x100814},
.rmii_pll1 = 0x10000A,
.cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
/* UM11040.pdf, Table 114 */
.mii_tx_clk = {0x100013, 0x100019, 0x10001F, 0x100025, 0x10002B},
.mii_rx_clk = {0x100014, 0x10001A, 0x100020, 0x100026, 0x10002C},
.mii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F},
.mii_ext_rx_clk = {0x100018, 0x10001E, 0x100024, 0x10002A, 0x100030},
.rgmii_tx_clk = {0x100016, 0x10001C, 0x100022, 0x100028, 0x10002E},
.rmii_ref_clk = {0x100015, 0x10001B, 0x100021, 0x100027, 0x10002D},
.rmii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F},
};
static const struct sja1105_regs sja1110_regs = {
.device_id = SJA1110_SPI_ADDR(0x0),
.prod_id = SJA1110_ACU_ADDR(0xf00),
.status = SJA1110_SPI_ADDR(0x4),
.port_control = SJA1110_SPI_ADDR(0x50), /* actually INHIB_TX */
.config = 0x020000,
.rgu = SJA1110_RGU_ADDR(0x100), /* Reset Control Register 0 */
/* Ports 2 and 3 are capable of xMII, but there isn't anything to
* configure in the CGU/ACU for them.
*/
.pad_mii_tx = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR},
.pad_mii_rx = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR},
.pad_mii_id = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1110_ACU_ADDR(0x18), SJA1110_ACU_ADDR(0x28),
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR},
.rmii_pll1 = SJA1105_RSV_ADDR,
.cgu_idiv = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.mii_tx_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.mii_rx_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.mii_ext_tx_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.mii_ext_rx_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.rgmii_tx_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.rmii_ref_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
.rmii_ext_tx_clk = {SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR},
.pcs_base = {SJA1105_RSV_ADDR, 0x1c1400, 0x1c1800, 0x1c1c00, 0x1c2000,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR,
SJA1105_RSV_ADDR, SJA1105_RSV_ADDR, SJA1105_RSV_ADDR},
};
enum sja1105_switch_id {
SJA1105E = 0,
SJA1105T,
SJA1105P,
SJA1105Q,
SJA1105R,
SJA1105S,
SJA1110A,
SJA1110B,
SJA1110C,
SJA1110D,
SJA1105_MAX_SWITCH_ID,
};
static const struct sja1105_info sja1105_info[] = {
[SJA1105E] = {
.device_id = SJA1105E_DEVICE_ID,
.part_no = SJA1105ET_PART_NO,
.static_ops = sja1105et_table_ops,
.reset_cmd = sja1105et_reset_cmd,
.regs = &sja1105et_regs,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 3,
[SJA1105_SPEED_100MBPS] = 2,
[SJA1105_SPEED_1000MBPS] = 1,
},
.supports_mii = {true, true, true, true, true},
.supports_rmii = {true, true, true, true, true},
.supports_rgmii = {true, true, true, true, true},
.name = "SJA1105E",
},
[SJA1105T] = {
.device_id = SJA1105T_DEVICE_ID,
.part_no = SJA1105ET_PART_NO,
.static_ops = sja1105et_table_ops,
.reset_cmd = sja1105et_reset_cmd,
.regs = &sja1105et_regs,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 3,
[SJA1105_SPEED_100MBPS] = 2,
[SJA1105_SPEED_1000MBPS] = 1,
},
.supports_mii = {true, true, true, true, true},
.supports_rmii = {true, true, true, true, true},
.supports_rgmii = {true, true, true, true, true},
.name = "SJA1105T",
},
[SJA1105P] = {
.device_id = SJA1105PR_DEVICE_ID,
.part_no = SJA1105P_PART_NO,
.static_ops = sja1105pqrs_table_ops,
.setup_rgmii_delay = sja1105pqrs_setup_rgmii_delay,
.reset_cmd = sja1105pqrs_reset_cmd,
.regs = &sja1105pqrs_regs,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 3,
[SJA1105_SPEED_100MBPS] = 2,
[SJA1105_SPEED_1000MBPS] = 1,
},
.supports_mii = {true, true, true, true, true},
.supports_rmii = {true, true, true, true, true},
.supports_rgmii = {true, true, true, true, true},
.name = "SJA1105P",
},
[SJA1105Q] = {
.device_id = SJA1105QS_DEVICE_ID,
.part_no = SJA1105Q_PART_NO,
.static_ops = sja1105pqrs_table_ops,
.setup_rgmii_delay = sja1105pqrs_setup_rgmii_delay,
.reset_cmd = sja1105pqrs_reset_cmd,
.regs = &sja1105pqrs_regs,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 3,
[SJA1105_SPEED_100MBPS] = 2,
[SJA1105_SPEED_1000MBPS] = 1,
},
.supports_mii = {true, true, true, true, true},
.supports_rmii = {true, true, true, true, true},
.supports_rgmii = {true, true, true, true, true},
.name = "SJA1105Q",
},
[SJA1105R] = {
.device_id = SJA1105PR_DEVICE_ID,
.part_no = SJA1105R_PART_NO,
.static_ops = sja1105pqrs_table_ops,
.setup_rgmii_delay = sja1105pqrs_setup_rgmii_delay,
.reset_cmd = sja1105pqrs_reset_cmd,
.regs = &sja1105pqrs_regs,
.pcs_mdio_read = sja1105_pcs_mdio_read,
.pcs_mdio_write = sja1105_pcs_mdio_write,
.pma_config = sja1105_pma_config,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 3,
[SJA1105_SPEED_100MBPS] = 2,
[SJA1105_SPEED_1000MBPS] = 1,
},
.supports_mii = {true, true, true, true, true},
.supports_rmii = {true, true, true, true, true},
.supports_rgmii = {true, true, true, true, true},
.supports_sgmii = {false, false, false, false, true},
.name = "SJA1105R",
},
[SJA1105S] = {
.device_id = SJA1105QS_DEVICE_ID,
.part_no = SJA1105S_PART_NO,
.static_ops = sja1105pqrs_table_ops,
.setup_rgmii_delay = sja1105pqrs_setup_rgmii_delay,
.reset_cmd = sja1105pqrs_reset_cmd,
.regs = &sja1105pqrs_regs,
.pcs_mdio_read = sja1105_pcs_mdio_read,
.pcs_mdio_write = sja1105_pcs_mdio_write,
.pma_config = sja1105_pma_config,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 3,
[SJA1105_SPEED_100MBPS] = 2,
[SJA1105_SPEED_1000MBPS] = 1,
},
.supports_mii = {true, true, true, true, true},
.supports_rmii = {true, true, true, true, true},
.supports_rgmii = {true, true, true, true, true},
.supports_sgmii = {false, false, false, false, true},
.name = "SJA1105S",
},
[SJA1110A] = {
.device_id = SJA1110_DEVICE_ID,
.part_no = SJA1110A_PART_NO,
.static_ops = sja1110_table_ops,
.setup_rgmii_delay = sja1110_setup_rgmii_delay,
.reset_cmd = sja1110_reset_cmd,
.regs = &sja1110_regs,
.pcs_mdio_read = sja1110_pcs_mdio_read,
.pcs_mdio_write = sja1110_pcs_mdio_write,
.pma_config = sja1110_pma_config,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 4,
[SJA1105_SPEED_100MBPS] = 3,
[SJA1105_SPEED_1000MBPS] = 2,
},
.supports_mii = {true, true, true, true, false,
true, true, true, true, true, true},
.supports_rmii = {false, false, true, true, false,
false, false, false, false, false, false},
.supports_rgmii = {false, false, true, true, false,
false, false, false, false, false, false},
.supports_sgmii = {false, true, true, true, true,
false, false, false, false, false, false},
.name = "SJA1110A",
},
[SJA1110B] = {
.device_id = SJA1110_DEVICE_ID,
.part_no = SJA1110B_PART_NO,
.static_ops = sja1110_table_ops,
.setup_rgmii_delay = sja1110_setup_rgmii_delay,
.reset_cmd = sja1110_reset_cmd,
.regs = &sja1110_regs,
.pcs_mdio_read = sja1110_pcs_mdio_read,
.pcs_mdio_write = sja1110_pcs_mdio_write,
.pma_config = sja1110_pma_config,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 4,
[SJA1105_SPEED_100MBPS] = 3,
[SJA1105_SPEED_1000MBPS] = 2,
},
.supports_mii = {true, true, true, true, false,
true, true, true, true, true, false},
.supports_rmii = {false, false, true, true, false,
false, false, false, false, false, false},
.supports_rgmii = {false, false, true, true, false,
false, false, false, false, false, false},
.supports_sgmii = {false, false, false, true, true,
false, false, false, false, false, false},
.name = "SJA1110B",
},
[SJA1110C] = {
.device_id = SJA1110_DEVICE_ID,
.part_no = SJA1110C_PART_NO,
.static_ops = sja1110_table_ops,
.setup_rgmii_delay = sja1110_setup_rgmii_delay,
.reset_cmd = sja1110_reset_cmd,
.regs = &sja1110_regs,
.pcs_mdio_read = sja1110_pcs_mdio_read,
.pcs_mdio_write = sja1110_pcs_mdio_write,
.pma_config = sja1110_pma_config,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 4,
[SJA1105_SPEED_100MBPS] = 3,
[SJA1105_SPEED_1000MBPS] = 2,
},
.supports_mii = {true, true, true, true, false,
true, true, true, false, false, false},
.supports_rmii = {false, false, true, true, false,
false, false, false, false, false, false},
.supports_rgmii = {false, false, true, true, false,
false, false, false, false, false, false},
.supports_sgmii = {false, false, false, false, true,
false, false, false, false, false, false},
.name = "SJA1110C",
},
[SJA1110D] = {
.device_id = SJA1110_DEVICE_ID,
.part_no = SJA1110D_PART_NO,
.static_ops = sja1110_table_ops,
.setup_rgmii_delay = sja1110_setup_rgmii_delay,
.reset_cmd = sja1110_reset_cmd,
.regs = &sja1110_regs,
.pcs_mdio_read = sja1110_pcs_mdio_read,
.pcs_mdio_write = sja1110_pcs_mdio_write,
.pma_config = sja1110_pma_config,
.port_speed = {
[SJA1105_SPEED_AUTO] = 0,
[SJA1105_SPEED_10MBPS] = 4,
[SJA1105_SPEED_100MBPS] = 3,
[SJA1105_SPEED_1000MBPS] = 2,
},
.supports_mii = {true, false, true, false, false,
true, true, true, false, false, false},
.supports_rmii = {false, false, true, false, false,
false, false, false, false, false, false},
.supports_rgmii = {false, false, true, false, false,
false, false, false, false, false, false},
.supports_sgmii = {false, true, true, true, true,
false, false, false, false, false, false},
.name = "SJA1110D",
},
};
struct sja1105_status {
u64 configs;
u64 crcchkl;
u64 ids;
u64 crcchkg;
};
static void sja1105_status_unpack(void *buf, struct sja1105_status *status)
{
sja1105_packing(buf, &status->configs, 31, 31, 4, UNPACK);
sja1105_packing(buf, &status->crcchkl, 30, 30, 4, UNPACK);
sja1105_packing(buf, &status->ids, 29, 29, 4, UNPACK);
sja1105_packing(buf, &status->crcchkg, 28, 28, 4, UNPACK);
}
static int sja1105_status_get(struct sja1105_private *priv,
struct sja1105_status *status)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[4];
int rc;
rc = sja1105_xfer_buf(priv, SPI_READ, regs->status, packed_buf, 4);
if (rc < 0)
return rc;
sja1105_status_unpack(packed_buf, status);
return 0;
}
/* Not const because unpacking priv->static_config into buffers and preparing
* for upload requires the recalculation of table CRCs and updating the
* structures with these.
*/
static int
static_config_buf_prepare_for_upload(struct sja1105_private *priv,
void *config_buf, int buf_len)
{
struct sja1105_static_config *config = &priv->static_config;
struct sja1105_table_header final_header;
char *final_header_ptr;
int crc_len;
/* Write Device ID and config tables to config_buf */
sja1105_static_config_pack(config_buf, config);
/* Recalculate CRC of the last header (right now 0xDEADBEEF).
* Don't include the CRC field itself.
*/
crc_len = buf_len - 4;
/* Read the whole table header */
final_header_ptr = config_buf + buf_len - SJA1105_SIZE_TABLE_HEADER;
sja1105_table_header_packing(final_header_ptr, &final_header, UNPACK);
/* Modify */
final_header.crc = sja1105_crc32(config_buf, crc_len);
/* Rewrite */
sja1105_table_header_packing(final_header_ptr, &final_header, PACK);
return 0;
}
static int sja1105_static_config_upload(struct sja1105_private *priv)
{
struct sja1105_static_config *config = &priv->static_config;
const struct sja1105_regs *regs = priv->info->regs;
struct sja1105_status status;
u8 *config_buf;
int buf_len;
int rc;
buf_len = sja1105_static_config_get_length(config);
config_buf = calloc(buf_len, sizeof(char));
if (!config_buf)
return -ENOMEM;
rc = static_config_buf_prepare_for_upload(priv, config_buf, buf_len);
if (rc < 0) {
printf("Invalid config, cannot upload\n");
rc = -EINVAL;
goto out;
}
/* Put the SJA1105 in programming mode */
rc = priv->info->reset_cmd(priv);
if (rc < 0) {
printf("Failed to reset switch\n");
goto out;
}
/* Wait for the switch to come out of reset */
udelay(1000);
/* Upload the static config to the device */
rc = sja1105_xfer_buf(priv, SPI_WRITE, regs->config,
config_buf, buf_len);
if (rc < 0) {
printf("Failed to upload config\n");
goto out;
}
/* Check that SJA1105 responded well to the config upload */
rc = sja1105_status_get(priv, &status);
if (rc < 0)
goto out;
if (status.ids == 1) {
printf("Mismatch between hardware and static config device id. "
"Wrote 0x%llx, wants 0x%llx\n",
config->device_id, priv->info->device_id);
rc = -EIO;
goto out;
}
if (status.crcchkl == 1 || status.crcchkg == 1) {
printf("Switch reported invalid CRC on static config\n");
rc = -EIO;
goto out;
}
if (status.configs == 0) {
printf("Switch reported that config is invalid\n");
rc = -EIO;
goto out;
}
out:
free(config_buf);
return rc;
}
static int sja1105_static_config_reload(struct sja1105_private *priv)
{
int rc;
rc = sja1105_static_config_upload(priv);
if (rc < 0) {
printf("Failed to load static config: %d\n", rc);
return rc;
}
/* Configure the CGU (PHY link modes and speeds) */
rc = sja1105_clocking_setup(priv);
if (rc < 0) {
printf("Failed to configure MII clocking: %d\n", rc);
return rc;
}
return 0;
}
static int sja1105_port_probe(struct udevice *dev, int port,
struct phy_device *phy)
{
struct sja1105_private *priv = dev_get_priv(dev);
ofnode node = dsa_port_get_ofnode(dev, port);
phy_interface_t phy_mode = phy->interface;
priv->xpcs_cfg[port].inband_an = ofnode_eth_uses_inband_aneg(node);
if (phy_mode == PHY_INTERFACE_MODE_MII ||
phy_mode == PHY_INTERFACE_MODE_RMII) {
phy->supported &= PHY_BASIC_FEATURES;
phy->advertising &= PHY_BASIC_FEATURES;
} else {
phy->supported &= PHY_GBIT_FEATURES;
phy->advertising &= PHY_GBIT_FEATURES;
}
return phy_config(phy);
}
static int sja1105_port_enable(struct udevice *dev, int port,
struct phy_device *phy)
{
struct sja1105_private *priv = dev_get_priv(dev);
phy_interface_t phy_mode = phy->interface;
struct sja1105_xmii_params_entry *mii;
struct sja1105_mac_config_entry *mac;
int rc;
rc = phy_startup(phy);
if (rc)
return rc;
mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries;
mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;
switch (phy_mode) {
case PHY_INTERFACE_MODE_MII:
if (!priv->info->supports_mii[port])
goto unsupported;
mii->xmii_mode[port] = XMII_MODE_MII;
break;
case PHY_INTERFACE_MODE_RMII:
if (!priv->info->supports_rmii[port])
goto unsupported;
mii->xmii_mode[port] = XMII_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:
if (!priv->info->supports_rgmii[port])
goto unsupported;
mii->xmii_mode[port] = XMII_MODE_RGMII;
break;
case PHY_INTERFACE_MODE_SGMII:
if (!priv->info->supports_sgmii[port])
goto unsupported;
mii->xmii_mode[port] = XMII_MODE_SGMII;
mii->special[port] = true;
break;
unsupported:
default:
dev_err(dev, "Unsupported PHY mode %d on port %d!\n",
phy_mode, port);
return -EINVAL;
}
/* RevMII, RevRMII not supported */
mii->phy_mac[port] = XMII_MAC;
/* Let the PHY handle the RGMII delays, if present. */
if (phy->phy_id == PHY_FIXED_ID) {
if (phy_mode == PHY_INTERFACE_MODE_RGMII_RXID ||
phy_mode == PHY_INTERFACE_MODE_RGMII_ID)
priv->rgmii_rx_delay[port] = true;
if (phy_mode == PHY_INTERFACE_MODE_RGMII_TXID ||
phy_mode == PHY_INTERFACE_MODE_RGMII_ID)
priv->rgmii_tx_delay[port] = true;
if ((priv->rgmii_rx_delay[port] ||
priv->rgmii_tx_delay[port]) &&
!priv->info->setup_rgmii_delay) {
printf("Chip does not support internal RGMII delays\n");
return -EINVAL;
}
}
if (mii->xmii_mode[port] == XMII_MODE_SGMII) {
mac[port].speed = priv->info->port_speed[SJA1105_SPEED_1000MBPS];
priv->xpcs_cfg[port].speed = phy->speed;
} else if (phy->speed == SPEED_1000) {
mac[port].speed = priv->info->port_speed[SJA1105_SPEED_1000MBPS];
} else if (phy->speed == SPEED_100) {
mac[port].speed = priv->info->port_speed[SJA1105_SPEED_100MBPS];
} else if (phy->speed == SPEED_10) {
mac[port].speed = priv->info->port_speed[SJA1105_SPEED_10MBPS];
} else {
printf("Invalid PHY speed %d on port %d\n", phy->speed, port);
return -EINVAL;
}
return sja1105_static_config_reload(priv);
}
static void sja1105_port_disable(struct udevice *dev, int port,
struct phy_device *phy)
{
phy_shutdown(phy);
}
static int sja1105_xmit(struct udevice *dev, int port, void *packet, int length)
{
struct sja1105_private *priv = dev_get_priv(dev);
u8 *from = (u8 *)packet + VLAN_HLEN;
struct vlan_ethhdr *hdr = packet;
u8 *dest = (u8 *)packet;
memmove(dest, from, 2 * ETH_ALEN);
hdr->h_vlan_proto = htons(ETH_P_SJA1105);
hdr->h_vlan_TCI = htons(priv->pvid[port]);
return 0;
}
static int sja1105_rcv(struct udevice *dev, int *port, void *packet, int length)
{
struct vlan_ethhdr *hdr = packet;
u8 *dest = packet + VLAN_HLEN;
u8 *from = packet;
if (ntohs(hdr->h_vlan_proto) != ETH_P_SJA1105)
return -EINVAL;
*port = ntohs(hdr->h_vlan_TCI) & DSA_8021Q_PORT_MASK;
memmove(dest, from, 2 * ETH_ALEN);
return 0;
}
static const struct dsa_ops sja1105_dsa_ops = {
.port_probe = sja1105_port_probe,
.port_enable = sja1105_port_enable,
.port_disable = sja1105_port_disable,
.xmit = sja1105_xmit,
.rcv = sja1105_rcv,
};
static int sja1105_init(struct sja1105_private *priv)
{
int rc;
rc = sja1105_static_config_init(priv);
if (rc) {
printf("Failed to initialize static config: %d\n", rc);
return rc;
}
rc = sja1105_mdiobus_register(priv);
if (rc) {
printf("Failed to register MDIO bus: %d\n", rc);
goto err_mdiobus_register;
}
return 0;
err_mdiobus_register:
sja1105_static_config_free(&priv->static_config);
return rc;
}
static int sja1105_check_device_id(struct sja1105_private *priv)
{
const struct sja1105_regs *regs = priv->info->regs;
u8 packed_buf[SJA1105_SIZE_DEVICE_ID] = {0};
enum sja1105_switch_id id;
u64 device_id;
u64 part_no;
int rc;
rc = sja1105_xfer_buf(priv, SPI_READ, regs->device_id, packed_buf,
SJA1105_SIZE_DEVICE_ID);
if (rc < 0)
return rc;
sja1105_packing(packed_buf, &device_id, 31, 0, SJA1105_SIZE_DEVICE_ID,
UNPACK);
if (device_id != priv->info->device_id) {
printf("Expected device ID 0x%llx but read 0x%llx\n",
priv->info->device_id, device_id);
return -ENODEV;
}
rc = sja1105_xfer_buf(priv, SPI_READ, regs->prod_id, packed_buf,
SJA1105_SIZE_DEVICE_ID);
if (rc < 0)
return rc;
sja1105_packing(packed_buf, &part_no, 19, 4, SJA1105_SIZE_DEVICE_ID,
UNPACK);
for (id = 0; id < SJA1105_MAX_SWITCH_ID; id++) {
const struct sja1105_info *info = &sja1105_info[id];
/* Is what's been probed in our match table at all? */
if (info->device_id != device_id || info->part_no != part_no)
continue;
/* But is it what's in the device tree? */
if (priv->info->device_id != device_id ||
priv->info->part_no != part_no) {
printf("Device tree specifies chip %s but found %s, please fix it!\n",
priv->info->name, info->name);
/* It isn't. No problem, pick that up. */
priv->info = info;
}
return 0;
}
printf("Unexpected {device ID, part number}: 0x%llx 0x%llx\n",
device_id, part_no);
return -ENODEV;
}
static int sja1105_probe(struct udevice *dev)
{
enum sja1105_switch_id id = dev_get_driver_data(dev);
struct sja1105_private *priv = dev_get_priv(dev);
int rc;
if (ofnode_valid(dev_ofnode(dev)) &&
!ofnode_is_available(dev_ofnode(dev))) {
dev_dbg(dev, "switch disabled\n");
return -ENODEV;
}
priv->info = &sja1105_info[id];
priv->dev = dev;
rc = sja1105_check_device_id(priv);
if (rc < 0) {
dev_err(dev, "Device ID check failed: %d\n", rc);
return rc;
}
dsa_set_tagging(dev, VLAN_HLEN, 0);
return sja1105_init(priv);
}
static int sja1105_remove(struct udevice *dev)
{
struct sja1105_private *priv = dev_get_priv(dev);
sja1105_mdiobus_unregister(priv);
sja1105_static_config_free(&priv->static_config);
return 0;
}
static const struct udevice_id sja1105_ids[] = {
{ .compatible = "nxp,sja1105e", .data = SJA1105E },
{ .compatible = "nxp,sja1105t", .data = SJA1105T },
{ .compatible = "nxp,sja1105p", .data = SJA1105P },
{ .compatible = "nxp,sja1105q", .data = SJA1105Q },
{ .compatible = "nxp,sja1105r", .data = SJA1105R },
{ .compatible = "nxp,sja1105s", .data = SJA1105S },
{ .compatible = "nxp,sja1110a", .data = SJA1110A },
{ .compatible = "nxp,sja1110b", .data = SJA1110B },
{ .compatible = "nxp,sja1110c", .data = SJA1110C },
{ .compatible = "nxp,sja1110d", .data = SJA1110D },
{ }
};
U_BOOT_DRIVER(sja1105) = {
.name = "sja1105",
.id = UCLASS_DSA,
.of_match = sja1105_ids,
.probe = sja1105_probe,
.remove = sja1105_remove,
.ops = &sja1105_dsa_ops,
.priv_auto = sizeof(struct sja1105_private),
};
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