From: Oleksij Rempel <o.rempel@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v4 11/13] net: dsa: add support for SJA11xx switches
Date: Fri, 8 Apr 2022 10:29:48 +0200 [thread overview]
Message-ID: <20220408082950.824927-12-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20220408082950.824927-1-o.rempel@pengutronix.de>
Port SJA11xx driver from u-boot v2022.04-rc2 to provide support for NXP SJA11xx
series of switches.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
drivers/net/Kconfig | 17 +
drivers/net/Makefile | 1 +
drivers/net/sja1105.c | 3005 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 3023 insertions(+)
create mode 100644 drivers/net/sja1105.c
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 8d76fe66f2..038eeb19a8 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -241,6 +241,23 @@ config DRIVER_NET_RTL8169
This is a driver for the Fast Ethernet PCI network cards based on
the RTL 8169 chips.
+config DRIVER_NET_SJA1105
+ bool "NXP SJA1105 Ethernet switch family driver"
+ depends on SPI
+ select BITREV
+ select DSA
+ help
+ This is the driver for the NXP SJA1105 automotive Ethernet switch
+ family. These are 5-port devices and are managed over an SPI
+ interface. Probing is handled based on OF bindings. The driver
+ supports the following revisions:
+ - SJA1105E (Gen. 1, No TT-Ethernet)
+ - SJA1105T (Gen. 1, TT-Ethernet)
+ - SJA1105P (Gen. 2, No SGMII, No TT-Ethernet)
+ - SJA1105Q (Gen. 2, No SGMII, TT-Ethernet)
+ - SJA1105R (Gen. 2, SGMII, No TT-Ethernet)
+ - SJA1105S (Gen. 2, SGMII, TT-Ethernet)
+
config DRIVER_NET_SMC911X
bool "smc911x ethernet driver"
select PHYLIB
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 406e13f1a0..1c979047d9 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_DRIVER_NET_MVNETA) += mvneta.o
obj-$(CONFIG_DRIVER_NET_ORION) += orion-gbe.o
obj-$(CONFIG_DRIVER_NET_RTL8139) += rtl8139.o
obj-$(CONFIG_DRIVER_NET_RTL8169) += rtl8169.o
+obj-$(CONFIG_DRIVER_NET_SJA1105) += sja1105.o
obj-$(CONFIG_DRIVER_NET_SMC911X) += smc911x.o
obj-$(CONFIG_DRIVER_NET_SMC91111) += smc91111.o
obj-$(CONFIG_DRIVER_NET_TAP) += tap.o
diff --git a/drivers/net/sja1105.c b/drivers/net/sja1105.c
new file mode 100644
index 0000000000..cfdd26be80
--- /dev/null
+++ b/drivers/net/sja1105.c
@@ -0,0 +1,3005 @@
+// 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/).
+ * Ported from U-boot ....
+ */
+
+#include <common.h>
+#include <dsa.h>
+#include <gpiod.h>
+#include <linux/bitrev.h>
+#include <linux/if_vlan.h>
+#include <net.h>
+#include <spi/spi.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
+
+#define ETH_FCS_LEN 4
+
+/* 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];
+ const struct sja1105_info *info;
+ struct device_d *dev;
+ struct dsa_switch ds;
+ struct spi_device *spidev;
+ size_t max_xfer_len;
+};
+
+enum sja1105_spi_rw_mode {
+ SPI_READ = 0,
+ SPI_WRITE = 1,
+};
+
+enum sja1105_mii_role {
+ XMII_MAC = 0,
+ XMII_PHY = 1,
+};
+
+enum sja1105_phy_interface {
+ XMII_MODE_MII = 0,
+ XMII_MODE_RMII = 1,
+ XMII_MODE_RGMII = 2,
+ XMII_MODE_SGMII = 3,
+};
+
+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);
+ 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];
+ unsigned int num_ports;
+};
+
+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,
+ enum sja1105_spi_rw_mode rw, u64 reg_addr,
+ u8 *buf, size_t len)
+{
+ u8 hdr_buf[SJA1105_SIZE_SPI_MSG_HEADER] = {0};
+ struct spi_device *spi = priv->spidev;
+ struct spi_transfer xfers[2] = {0};
+ struct spi_transfer *chunk_xfer;
+ struct spi_transfer *hdr_xfer;
+ struct sja1105_chunk chunk;
+ int num_chunks;
+ int rc, i = 0;
+
+ num_chunks = DIV_ROUND_UP(len, priv->max_xfer_len);
+
+ chunk.reg_addr = reg_addr;
+ chunk.buf = buf;
+ chunk.len = min_t(size_t, len, priv->max_xfer_len);
+
+ hdr_xfer = &xfers[0];
+ chunk_xfer = &xfers[1];
+
+ for (i = 0; i < num_chunks; i++) {
+ struct sja1105_spi_message msg;
+
+ /* 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);
+ hdr_xfer->tx_buf = hdr_buf;
+ hdr_xfer->len = SJA1105_SIZE_SPI_MSG_HEADER;
+
+ /* Populate the transfer's data buffer */
+ if (rw == SPI_READ)
+ chunk_xfer->rx_buf = chunk.buf;
+ else
+ chunk_xfer->tx_buf = chunk.buf;
+ chunk_xfer->len = chunk.len;
+
+ /* 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),
+ priv->max_xfer_len);
+
+ rc = spi_sync_transfer(spi, xfers, 2);
+ if (rc < 0) {
+ dev_err(&spi->dev, "SPI transfer failed: %d\n", rc);
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
+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 sja1105_vlan_lookup_entry *vlan;
+ struct dsa_switch *ds = &priv->ds;
+ int cpu = ds->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_switch *ds = &priv->ds;
+ struct sja1105_table *table;
+ int port;
+
+ table = &priv->static_config.tables[BLK_IDX_VLAN_LOOKUP];
+
+ table->entries = calloc(ds->num_ports,
+ table->ops->unpacked_entry_size);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = ds->num_ports;
+
+ for (port = 0; port < ds->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 sja1105_l2_forwarding_entry *l2fwd;
+ struct dsa_switch *ds = &priv->ds;
+ struct sja1105_table *table;
+ int cpu = ds->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 < ds->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_switch *ds = &priv->ds;
+ 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 = ds->num_ports,
+ /* No mirroring => specify an out-of-range port value */
+ .mirr_port = ds->num_ports,
+ /* No link-local trapping => specify an out-of-range port value
+ */
+ .casc_port = ds->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 sja1105_l2_policing_entry *policing;
+ struct dsa_switch *ds = &priv->ds;
+ struct sja1105_table *table;
+ int cpu = ds->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 < ds->num_ports; i++) {
+ int bcast = (ds->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 sja1105_mac_config_entry *mac;
+ struct dsa_switch *ds = &priv->ds;
+ struct sja1105_table *table;
+ int port;
+
+ table = &priv->static_config.tables[BLK_IDX_MAC_CONFIG];
+
+ table->entries = calloc(ds->num_ports,
+ table->ops->unpacked_entry_size);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = ds->num_ports;
+
+ mac = table->entries;
+
+ for (port = 0; port < ds->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_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, enum sja1105_mii_role 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,
+ enum sja1105_mii_role 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,
+ enum sja1105_mii_role role)
+{
+ struct sja1105_mac_config_entry *mac;
+ struct device_d *dev = priv->dev;
+ u64 speed;
+ int rc = -EINVAL;
+
+ 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;
+ }
+
+ 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,
+ enum sja1105_mii_role 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_clocking_setup_port(struct sja1105_private *priv, int port)
+{
+ struct sja1105_xmii_params_entry *mii;
+ enum sja1105_phy_interface phy_mode;
+ enum sja1105_mii_role 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;
+ 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_switch *ds = &priv->ds;
+ int port, rc;
+
+ for (port = 0; port < ds->num_ports; port++) {
+ rc = sja1105_clocking_setup_port(priv, port);
+ if (rc < 0)
+ return rc;
+ }
+ return 0;
+}
+
+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",
+ .num_ports = SJA1105_NUM_PORTS,
+ },
+ [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",
+ .num_ports = SJA1105_NUM_PORTS,
+ },
+ [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",
+ .num_ports = SJA1105_NUM_PORTS,
+ },
+ [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",
+ .num_ports = SJA1105_NUM_PORTS,
+ },
+ [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,
+ .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",
+ .num_ports = SJA1105_NUM_PORTS,
+ },
+ [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,
+ .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",
+ .num_ports = SJA1105_NUM_PORTS,
+ },
+ [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,
+ .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",
+ .num_ports = SJA1110_NUM_PORTS,
+ },
+ [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,
+ .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",
+ .num_ports = SJA1110_NUM_PORTS,
+ },
+ [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,
+ .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",
+ .num_ports = SJA1110_NUM_PORTS,
+ },
+ [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,
+ .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",
+ .num_ports = SJA1110_NUM_PORTS,
+ },
+};
+
+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) {
+ dev_err(priv->dev, "Invalid config, cannot upload\n");
+ rc = -EINVAL;
+ goto out;
+ }
+ /* Put the SJA1105 in programming mode */
+ rc = priv->info->reset_cmd(priv);
+ if (rc < 0) {
+ dev_err(priv->dev, "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) {
+ dev_err(priv->dev, "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) {
+ dev_err(priv->dev, "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) {
+ dev_err(priv->dev, "Switch reported invalid CRC on static config\n");
+ rc = -EIO;
+ goto out;
+ }
+ if (status.configs == 0) {
+ dev_err(priv->dev, "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) {
+ dev_err(priv->dev, "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) {
+ dev_err(priv->dev, "Failed to configure MII clocking: %d\n",
+ rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static int sja1105_port_set_mode(struct dsa_port *dp, int port,
+ phy_interface_t phy_mode)
+{
+ struct device_d *dev = dp->ds->dev;
+ struct sja1105_private *priv = dev_get_priv(dev);
+ struct sja1105_xmii_params_entry *mii;
+
+ mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries;
+
+ mii->phy_mac[port] = XMII_MAC;
+
+ switch (phy_mode) {
+ case PHY_INTERFACE_MODE_REVMII:
+ mii->phy_mac[port] = XMII_PHY;
+ fallthrough;
+ 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_REVRMII:
+ mii->phy_mac[port] = XMII_PHY;
+ fallthrough;
+ 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;
+ }
+
+ return 0;
+}
+
+static int sja1105_port_pre_enable(struct dsa_port *dp, int port,
+ phy_interface_t phy_mode)
+{
+ struct device_d *dev = dp->ds->dev;
+ struct sja1105_private *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = sja1105_port_set_mode(dp, port, phy_mode);
+ if (ret)
+ return ret;
+
+ return sja1105_static_config_reload(priv);
+}
+
+static int sja1105_port_enable(struct dsa_port *dp, int port,
+ struct phy_device *phy)
+{
+ struct device_d *dev = dp->ds->dev;
+ 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 ret;
+
+ mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries;
+ mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;
+
+ ret = sja1105_port_set_mode(dp, port, phy_mode);
+ if (ret)
+ return ret;
+
+ /* Let the PHY handle the RGMII delays, if present. */
+ if (phy->phy_id == 0) {
+ 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) {
+ dev_err(priv->dev, "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 {
+ dev_err(priv->dev, "Invalid PHY speed %d on port %d\n",
+ phy->speed, port);
+ return -EINVAL;
+ }
+
+ return sja1105_static_config_reload(priv);
+}
+
+static int sja1105_xmit(struct dsa_port *dp, int port, void *packet, int length)
+{
+ struct sja1105_private *priv = dev_get_priv(dp->ds->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 dsa_switch *ds, 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_pre_enable = sja1105_port_pre_enable,
+ .port_enable = sja1105_port_enable,
+ .xmit = sja1105_xmit,
+ .rcv = sja1105_rcv,
+};
+
+static int sja1105_init(struct sja1105_private *priv)
+{
+ int rc;
+
+ rc = sja1105_static_config_init(priv);
+ if (rc) {
+ dev_err(priv->dev, "Failed to initialize static config: %d\n",
+ rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+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);
+
+ 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) {
+ dev_err(priv->dev, "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;
+ }
+
+ dev_err(priv->dev, "Unexpected {device ID, part number}: 0x%llx 0x%llx\n",
+ device_id, part_no);
+
+ return -ENODEV;
+}
+
+/* Configure the optional reset pin and bring up switch */
+static int sja1105_hw_reset(struct device_d *dev, unsigned int pulse_len,
+ unsigned int startup_delay)
+{
+ int gpio;
+
+ gpio = gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ if (gpio < 0)
+ return 0;
+
+ gpiod_set_value(gpio, 1);
+ /* Wait for minimum reset pulse length */
+ mdelay(pulse_len);
+ gpiod_set_value(gpio, 0);
+ /* Wait until chip is ready after reset */
+ mdelay(startup_delay);
+
+ return 0;
+}
+
+static int sja1105_probe(struct device_d *dev)
+{
+ struct spi_device *spi = dev->type_data;
+ struct sja1105_private *priv;
+ enum sja1105_switch_id id;
+ size_t max_xfer, max_msg;
+ struct dsa_switch *ds;
+ int rc;
+
+ rc = sja1105_hw_reset(dev, 1, 1);
+ if (rc)
+ return rc;
+
+ priv = xzalloc(sizeof(*priv));
+
+ id = (enum sja1105_switch_id)device_get_match_data(dev);
+ priv->info = &sja1105_info[id];
+ priv->dev = dev;
+ dev->priv = priv;
+
+ /* spi init */
+ priv->spidev = spi;
+ /* Configure the SPI bus */
+ spi->bits_per_word = 8;
+
+ /* In sja1105_xfer, we send spi_messages composed of two spi_transfers:
+ * a small one for the message header and another one for the current
+ * chunk of the packed buffer.
+ * Check that the restrictions imposed by the SPI controller are
+ * respected: the chunk buffer is smaller than the max transfer size,
+ * and the total length of the chunk plus its message header is smaller
+ * than the max message size.
+ * We do that during probe time since the maximum transfer size is a
+ * runtime invariant.
+ */
+ max_xfer = spi_max_transfer_size(spi);
+ max_msg = spi_max_message_size(spi);
+
+ /* We need to send at least one 64-bit word of SPI payload per message
+ * in order to be able to make useful progress.
+ */
+ if (max_msg < SJA1105_SIZE_SPI_MSG_HEADER + 8) {
+ dev_err(dev, "SPI master cannot send large enough buffers, aborting\n");
+ return -EINVAL;
+ }
+
+ priv->max_xfer_len = SJA1105_SIZE_SPI_MSG_MAXLEN;
+ if (priv->max_xfer_len > max_xfer)
+ priv->max_xfer_len = max_xfer;
+ if (priv->max_xfer_len > max_msg - SJA1105_SIZE_SPI_MSG_HEADER)
+ priv->max_xfer_len = max_msg - SJA1105_SIZE_SPI_MSG_HEADER;
+
+ rc = sja1105_check_device_id(priv);
+ if (rc < 0) {
+ dev_err(dev, "Device ID check failed: %d\n", rc);
+ return rc;
+ }
+
+ ds = &priv->ds;
+ ds->dev = dev;
+ ds->num_ports = sja1105_info[id].num_ports;
+ ds->ops = &sja1105_dsa_ops;
+ ds->needed_headroom = VLAN_HLEN;
+
+ rc = dsa_register_switch(ds);
+ if (rc)
+ return rc;
+
+ return sja1105_init(priv);
+}
+
+static const struct of_device_id sja1105_ids[] = {
+ { .compatible = "nxp,sja1105e", .data = (void *)SJA1105E },
+ { .compatible = "nxp,sja1105t", .data = (void *)SJA1105T },
+ { .compatible = "nxp,sja1105p", .data = (void *)SJA1105P },
+ { .compatible = "nxp,sja1105q", .data = (void *)SJA1105Q },
+ { .compatible = "nxp,sja1105r", .data = (void *)SJA1105R },
+ { .compatible = "nxp,sja1105s", .data = (void *)SJA1105S },
+ { .compatible = "nxp,sja1110a", .data = (void *)SJA1110A },
+ { .compatible = "nxp,sja1110b", .data = (void *)SJA1110B },
+ { .compatible = "nxp,sja1110c", .data = (void *)SJA1110C },
+ { .compatible = "nxp,sja1110d", .data = (void *)SJA1110D },
+ { }
+};
+
+static struct driver_d sja1105_driver = {
+ .name = "sja1105",
+ .probe = sja1105_probe,
+ .of_compatible = DRV_OF_COMPAT(sja1105_ids),
+};
+
+device_spi_driver(sja1105_driver);
--
2.30.2
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next prev parent reply other threads:[~2022-04-08 8:33 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 8:29 [PATCH v4 00/13] provide DSA support Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 01/13] net: add RX preprocessor support Oleksij Rempel
2022-04-12 7:58 ` Sascha Hauer
2022-04-12 8:14 ` Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 02/13] net: add of_find_eth_device_by_node() function Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 03/13] net: phy: export of_phy_register_fixed_link() function Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 04/13] net: add DSA framework to support basic switch functionality Oleksij Rempel
2022-04-12 8:02 ` Sascha Hauer
2022-04-08 8:29 ` [PATCH v4 05/13] driver: add dev_get_priv() helper Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 06/13] net: port part of if_vlan header from kernel v5.17 Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 07/13] spi: port spi_sync_transfer() function " Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 08/13] net: mdio: add MDIO_DEVAD_NONE define Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 09/13] net: phy: make sure MDIO bus is probed if we search for the PHY Oleksij Rempel
2022-04-08 8:29 ` [PATCH v4 10/13] of_net: add rev-rmii support Oleksij Rempel
2022-04-08 8:29 ` Oleksij Rempel [this message]
2022-04-12 8:25 ` [PATCH v4 11/13] net: dsa: add support for SJA11xx switches Sascha Hauer
2022-04-08 8:29 ` [PATCH v4 12/13] net: dsa: add KSZ9477 switch SPI driver Oleksij Rempel
2022-04-12 8:37 ` Sascha Hauer
2022-04-08 8:29 ` [PATCH v4 13/13] add ethlog command Oleksij Rempel
2022-04-12 8:54 ` Sascha Hauer
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