From: Jassi Brar jaswinder.singh@linaro.org
Add SynQuacer's NETSEC GbE controller driver. Since this driver will load the firmware from SPI NOR flash, this depends on CONFIG_SYNQUACER_SPI=y.
Signed-off-by: Jassi Brar jaswinder.singh@linaro.org --- drivers/net/Kconfig | 8 drivers/net/Makefile | 1 drivers/net/sni_netsec.c | 1134 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1143 insertions(+) create mode 100644 drivers/net/sni_netsec.c
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 382639044b..9fc28b149d 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -673,6 +673,14 @@ config SNI_AVE This driver implements support for the Socionext AVE Ethernet controller, as found on the Socionext UniPhier family.
+config SNI_NETSEC + bool "Socionext NETSEC Ethernet support" + depends on DM_ETH && SYNQUACER_SPI + select PHYLIB + help + This driver implements support for the Socionext SynQuacer NETSEC + ethernet controller, as found on the Socionext SynQuacer family. + source "drivers/net/mscc_eswitch/Kconfig"
config ETHER_ON_FEC1 diff --git a/drivers/net/Makefile b/drivers/net/Makefile index a44a7d3f56..d56baa65b2 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -89,6 +89,7 @@ obj-$(CONFIG_DWC_ETH_QOS) += dwc_eth_qos.o obj-$(CONFIG_FSL_PFE) += pfe_eth/ obj-y += qe/ obj-$(CONFIG_SNI_AVE) += sni_ave.o +obj-$(CONFIG_SNI_NETSEC) += sni_netsec.o obj-y += ti/ obj-$(CONFIG_MEDIATEK_ETH) += mtk_eth.o obj-y += mscc_eswitch/ diff --git a/drivers/net/sni_netsec.c b/drivers/net/sni_netsec.c new file mode 100644 index 0000000000..a9ebf6af9c --- /dev/null +++ b/drivers/net/sni_netsec.c @@ -0,0 +1,1134 @@ +// SPDX-License-Identifier: GPL-2.0+ +/** + * netsec.c - Socionext Synquacer Netsec driver + * Copyright 2021 Linaro Ltd. + */ + +#include <clk.h> +#include <cpu_func.h> +#include <dm.h> +#include <fdt_support.h> +#include <log.h> +#include <malloc.h> +#include <miiphy.h> +#include <net.h> +#include <regmap.h> +#include <reset.h> +#include <syscon.h> +#include <asm/cache.h> +#include <asm/global_data.h> +#include <dm/device_compat.h> +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <spi.h> +#include <spi_flash.h> + +#define NETSEC_REG_SOFT_RST 0x104 +#define NETSEC_REG_COM_INIT 0x120 + +#define NETSEC_REG_TOP_STATUS 0x200 +#define NETSEC_IRQ_RX BIT(1) +#define NETSEC_IRQ_TX BIT(0) + +#define NETSEC_REG_TOP_INTEN 0x204 +#define NETSEC_REG_INTEN_SET 0x234 +#define NETSEC_REG_INTEN_CLR 0x238 + +#define NETSEC_REG_NRM_TX_STATUS 0x400 +#define NETSEC_REG_NRM_TX_INTEN 0x404 +#define NETSEC_REG_NRM_TX_INTEN_SET 0x428 +#define NETSEC_REG_NRM_TX_INTEN_CLR 0x42c +#define NRM_TX_ST_NTOWNR BIT(17) +#define NRM_TX_ST_TR_ERR BIT(16) +#define NRM_TX_ST_TXDONE BIT(15) +#define NRM_TX_ST_TMREXP BIT(14) + +#define NETSEC_REG_NRM_RX_STATUS 0x440 +#define NETSEC_REG_NRM_RX_INTEN 0x444 +#define NETSEC_REG_NRM_RX_INTEN_SET 0x468 +#define NETSEC_REG_NRM_RX_INTEN_CLR 0x46c +#define NRM_RX_ST_RC_ERR BIT(16) +#define NRM_RX_ST_PKTCNT BIT(15) +#define NRM_RX_ST_TMREXP BIT(14) + +#define NETSEC_REG_PKT_CMD_BUF 0xd0 + +#define NETSEC_REG_CLK_EN 0x100 + +#define NETSEC_REG_PKT_CTRL 0x140 + +#define NETSEC_REG_DMA_TMR_CTRL 0x20c +#define NETSEC_REG_F_TAIKI_MC_VER 0x22c +#define NETSEC_REG_F_TAIKI_VER 0x230 +#define NETSEC_REG_DMA_HM_CTRL 0x214 +#define NETSEC_REG_DMA_MH_CTRL 0x220 +#define NETSEC_REG_ADDR_DIS_CORE 0x218 +#define NETSEC_REG_DMAC_HM_CMD_BUF 0x210 +#define NETSEC_REG_DMAC_MH_CMD_BUF 0x21c + +#define NETSEC_REG_NRM_TX_PKTCNT 0x410 + +#define NETSEC_REG_NRM_TX_DONE_PKTCNT 0x414 +#define NETSEC_REG_NRM_TX_DONE_TXINT_PKTCNT 0x418 + +#define NETSEC_REG_NRM_TX_TMR 0x41c + +#define NETSEC_REG_NRM_RX_PKTCNT 0x454 +#define NETSEC_REG_NRM_RX_RXINT_PKTCNT 0x458 +#define NETSEC_REG_NRM_TX_TXINT_TMR 0x420 +#define NETSEC_REG_NRM_RX_RXINT_TMR 0x460 + +#define NETSEC_REG_NRM_RX_TMR 0x45c + +#define NETSEC_REG_NRM_TX_DESC_START_UP 0x434 +#define NETSEC_REG_NRM_TX_DESC_START_LW 0x408 +#define NETSEC_REG_NRM_RX_DESC_START_UP 0x474 +#define NETSEC_REG_NRM_RX_DESC_START_LW 0x448 + +#define NETSEC_REG_NRM_TX_CONFIG 0x430 +#define NETSEC_REG_NRM_RX_CONFIG 0x470 + +#define MAC_REG_STATUS 0x1024 +#define MAC_REG_DATA 0x11c0 +#define MAC_REG_CMD 0x11c4 +#define MAC_REG_FLOW_TH 0x11cc +#define MAC_REG_INTF_SEL 0x11d4 +#define MAC_REG_DESC_INIT 0x11fc +#define MAC_REG_DESC_SOFT_RST 0x1204 +#define NETSEC_REG_MODE_TRANS_COMP_STATUS 0x500 + +#define GMAC_REG_MCR 0x0000 +#define GMAC_REG_MFFR 0x0004 +#define GMAC_REG_GAR 0x0010 +#define GMAC_REG_GDR 0x0014 +#define GMAC_REG_FCR 0x0018 +#define GMAC_REG_BMR 0x1000 +#define GMAC_REG_RDLAR 0x100c +#define GMAC_REG_TDLAR 0x1010 +#define GMAC_REG_OMR 0x1018 + +#define MHZ(n) ((n) * 1000 * 1000) + +#define NETSEC_TX_SHIFT_OWN_FIELD 31 +#define NETSEC_TX_SHIFT_LD_FIELD 30 +#define NETSEC_TX_SHIFT_DRID_FIELD 24 +#define NETSEC_TX_SHIFT_PT_FIELD 21 +#define NETSEC_TX_SHIFT_TDRID_FIELD 16 +#define NETSEC_TX_SHIFT_CC_FIELD 15 +#define NETSEC_TX_SHIFT_FS_FIELD 9 +#define NETSEC_TX_LAST 8 +#define NETSEC_TX_SHIFT_CO 7 +#define NETSEC_TX_SHIFT_SO 6 +#define NETSEC_TX_SHIFT_TRS_FIELD 4 + +#define NETSEC_RX_PKT_OWN_FIELD 31 +#define NETSEC_RX_PKT_LD_FIELD 30 +#define NETSEC_RX_PKT_SDRID_FIELD 24 +#define NETSEC_RX_PKT_FR_FIELD 23 +#define NETSEC_RX_PKT_ER_FIELD 21 +#define NETSEC_RX_PKT_ERR_FIELD 16 +#define NETSEC_RX_PKT_TDRID_FIELD 12 +#define NETSEC_RX_PKT_FS_FIELD 9 +#define NETSEC_RX_PKT_LS_FIELD 8 +#define NETSEC_RX_PKT_CO_FIELD 6 + +#define NETSEC_RX_PKT_ERR_MASK 3 + +#define NETSEC_MAX_TX_PKT_LEN 1518 +#define NETSEC_MAX_TX_JUMBO_PKT_LEN 9018 + +#define NETSEC_RING_GMAC 15 +#define NETSEC_RING_MAX 2 + +#define NETSEC_TCP_SEG_LEN_MAX 1460 +#define NETSEC_TCP_JUMBO_SEG_LEN_MAX 8960 + +#define NETSEC_RX_CKSUM_NOTAVAIL 0 +#define NETSEC_RX_CKSUM_OK 1 +#define NETSEC_RX_CKSUM_NG 2 + +#define NETSEC_TOP_IRQ_REG_ME_START BIT(20) +#define NETSEC_IRQ_TRANSITION_COMPLETE BIT(4) + +#define NETSEC_MODE_TRANS_COMP_IRQ_N2T BIT(20) +#define NETSEC_MODE_TRANS_COMP_IRQ_T2N BIT(19) + +#define NETSEC_INT_PKTCNT_MAX 2047 + +#define NETSEC_FLOW_START_TH_MAX 95 +#define NETSEC_FLOW_STOP_TH_MAX 95 +#define NETSEC_FLOW_PAUSE_TIME_MIN 5 + +#define NETSEC_CLK_EN_REG_DOM_ALL 0x3f + +#define NETSEC_PKT_CTRL_REG_MODE_NRM BIT(28) +#define NETSEC_PKT_CTRL_REG_EN_JUMBO BIT(27) +#define NETSEC_PKT_CTRL_REG_LOG_CHKSUM_ER BIT(3) +#define NETSEC_PKT_CTRL_REG_LOG_HD_INCOMPLETE BIT(2) +#define NETSEC_PKT_CTRL_REG_LOG_HD_ER BIT(1) +#define NETSEC_PKT_CTRL_REG_DRP_NO_MATCH BIT(0) + +#define NETSEC_CLK_EN_REG_DOM_G BIT(5) +#define NETSEC_CLK_EN_REG_DOM_C BIT(1) +#define NETSEC_CLK_EN_REG_DOM_D BIT(0) + +#define NETSEC_COM_INIT_REG_DB BIT(2) +#define NETSEC_COM_INIT_REG_CLS BIT(1) +#define NETSEC_COM_INIT_REG_ALL (NETSEC_COM_INIT_REG_CLS | \ + NETSEC_COM_INIT_REG_DB) + +#define NETSEC_SOFT_RST_REG_RESET 0 +#define NETSEC_SOFT_RST_REG_RUN BIT(31) + +#define NETSEC_DMA_CTRL_REG_STOP 1 +#define MH_CTRL__MODE_TRANS BIT(20) + +#define NETSEC_GMAC_CMD_ST_READ 0 +#define NETSEC_GMAC_CMD_ST_WRITE BIT(28) +#define NETSEC_GMAC_CMD_ST_BUSY BIT(31) + +#define NETSEC_GMAC_BMR_REG_COMMON 0x00412080 +#define NETSEC_GMAC_BMR_REG_RESET 0x00020181 +#define NETSEC_GMAC_BMR_REG_SWR 0x00000001 + +#define NETSEC_GMAC_OMR_REG_ST BIT(13) +#define NETSEC_GMAC_OMR_REG_SR BIT(1) + +#define NETSEC_GMAC_MCR_REG_IBN BIT(30) +#define NETSEC_GMAC_MCR_REG_CST BIT(25) +#define NETSEC_GMAC_MCR_REG_JE BIT(20) +#define NETSEC_MCR_PS BIT(15) +#define NETSEC_GMAC_MCR_REG_FES BIT(14) +#define NETSEC_GMAC_MCR_REG_FULL_DUPLEX_COMMON 0x0000280c +#define NETSEC_GMAC_MCR_REG_HALF_DUPLEX_COMMON 0x0001a00c + +#define NETSEC_FCR_RFE BIT(2) +#define NETSEC_FCR_TFE BIT(1) + +#define NETSEC_GMAC_GAR_REG_GW BIT(1) +#define NETSEC_GMAC_GAR_REG_GB BIT(0) + +#define NETSEC_GMAC_GAR_REG_SHIFT_PA 11 +#define NETSEC_GMAC_GAR_REG_SHIFT_GR 6 +#define GMAC_REG_SHIFT_CR_GAR 2 + +#define NETSEC_GMAC_GAR_REG_CR_25_35_MHZ 2 +#define NETSEC_GMAC_GAR_REG_CR_35_60_MHZ 3 +#define NETSEC_GMAC_GAR_REG_CR_60_100_MHZ 0 +#define NETSEC_GMAC_GAR_REG_CR_100_150_MHZ 1 +#define NETSEC_GMAC_GAR_REG_CR_150_250_MHZ 4 +#define NETSEC_GMAC_GAR_REG_CR_250_300_MHZ 5 + +#define NETSEC_GMAC_RDLAR_REG_COMMON 0x18000 +#define NETSEC_GMAC_TDLAR_REG_COMMON 0x1c000 + +#define NETSEC_REG_NETSEC_VER_F_TAIKI 0x50000 + +#define NETSEC_REG_DESC_RING_CONFIG_CFG_UP BIT(31) +#define NETSEC_REG_DESC_RING_CONFIG_CH_RST BIT(30) +#define NETSEC_REG_DESC_TMR_MODE 4 +#define NETSEC_REG_DESC_ENDIAN 0 + +#define NETSEC_MAC_DESC_SOFT_RST_SOFT_RST 1 +#define NETSEC_MAC_DESC_INIT_REG_INIT 1 + +#define NETSEC_EEPROM_MAC_ADDRESS 0x00 +#define NETSEC_EEPROM_HM_ME_ADDRESS_H 0x08 +#define NETSEC_EEPROM_HM_ME_ADDRESS_L 0x0C +#define NETSEC_EEPROM_HM_ME_SIZE 0x10 +#define NETSEC_EEPROM_MH_ME_ADDRESS_H 0x14 +#define NETSEC_EEPROM_MH_ME_ADDRESS_L 0x18 +#define NETSEC_EEPROM_MH_ME_SIZE 0x1C +#define NETSEC_EEPROM_PKT_ME_ADDRESS 0x20 +#define NETSEC_EEPROM_PKT_ME_SIZE 0x24 + +#define DESC_SZ sizeof(struct netsec_de) + +#define NETSEC_F_NETSEC_VER_MAJOR_NUM(x) ((x) & 0xffff0000) + +#define EERPROM_MAP_OFFSET 0x8000000 +#define NOR_BLOCK 1024 + +struct netsec_de { /* Netsec Descriptor layout */ + u32 attr; + u32 data_buf_addr_up; + u32 data_buf_addr_lw; + u32 buf_len_info; +}; + +struct netsec_priv { + struct netsec_de rxde[PKTBUFSRX]; + struct netsec_de txde[1]; + u16 rxat; + + phys_addr_t eeprom_base; + phys_addr_t ioaddr; + + struct mii_dev *bus; + struct phy_device *phydev; + u32 phy_addr, freq; + int phy_mode; + int max_speed; +}; + +struct netsec_tx_pkt_ctrl { + u16 tcp_seg_len; + bool tcp_seg_offload_flag; + bool cksum_offload_flag; +}; + +struct netsec_rx_pkt_info { + int rx_cksum_result; + int err_code; + bool err_flag; +}; + +static void netsec_write_reg(struct netsec_priv *priv, u32 reg_addr, u32 val) +{ + writel(val, priv->ioaddr + reg_addr); +} + +static u32 netsec_read_reg(struct netsec_priv *priv, u32 reg_addr) +{ + return readl(priv->ioaddr + reg_addr); +} + +/************* MDIO BUS OPS FOLLOW *************/ + +#define TIMEOUT_SPINS_MAC 1000 +#define TIMEOUT_SECONDARY_MS_MAC 100 + +static u32 netsec_clk_type(u32 freq) +{ + if (freq < MHZ(35)) + return NETSEC_GMAC_GAR_REG_CR_25_35_MHZ; + if (freq < MHZ(60)) + return NETSEC_GMAC_GAR_REG_CR_35_60_MHZ; + if (freq < MHZ(100)) + return NETSEC_GMAC_GAR_REG_CR_60_100_MHZ; + if (freq < MHZ(150)) + return NETSEC_GMAC_GAR_REG_CR_100_150_MHZ; + if (freq < MHZ(250)) + return NETSEC_GMAC_GAR_REG_CR_150_250_MHZ; + + return NETSEC_GMAC_GAR_REG_CR_250_300_MHZ; +} + +static int netsec_wait_while_busy(struct netsec_priv *priv, u32 addr, u32 mask) +{ + u32 timeout = TIMEOUT_SPINS_MAC; + + while (--timeout && netsec_read_reg(priv, addr) & mask) + cpu_relax(); + if (timeout) + return 0; + + timeout = TIMEOUT_SECONDARY_MS_MAC; + while (--timeout && netsec_read_reg(priv, addr) & mask) + udelay(2000); + + if (timeout) + return 0; + + pr_err("%s: timeout\n", __func__); + + return -ETIMEDOUT; +} + +static int netsec_set_mac_reg(struct netsec_priv *priv, u32 addr, u32 value) +{ + netsec_write_reg(priv, MAC_REG_DATA, value); + netsec_write_reg(priv, MAC_REG_CMD, addr | NETSEC_GMAC_CMD_ST_WRITE); + return netsec_wait_while_busy(priv, + MAC_REG_CMD, NETSEC_GMAC_CMD_ST_BUSY); +} + +static int netsec_get_mac_reg(struct netsec_priv *priv, u32 addr, u32 *read) +{ + int ret; + + netsec_write_reg(priv, MAC_REG_CMD, addr | NETSEC_GMAC_CMD_ST_READ); + ret = netsec_wait_while_busy(priv, + MAC_REG_CMD, NETSEC_GMAC_CMD_ST_BUSY); + if (ret) + return ret; + + *read = netsec_read_reg(priv, MAC_REG_DATA); + + return 0; +} + +static int netsec_mac_wait_while_busy(struct netsec_priv *priv, + u32 addr, u32 mask) +{ + u32 timeout = TIMEOUT_SPINS_MAC; + u32 data; + int ret; + + do { + ret = netsec_get_mac_reg(priv, addr, &data); + if (ret) + break; + udelay(1); + } while (--timeout && (data & mask)); + + if (timeout) + return 0; + + timeout = TIMEOUT_SECONDARY_MS_MAC; + do { + udelay(2000); + + ret = netsec_get_mac_reg(priv, addr, &data); + if (ret) + break; + cpu_relax(); + } while (--timeout && (data & mask)); + + if (timeout && !ret) + return 0; + + return -ETIMEDOUT; +} + +static void netsec_cache_invalidate(uintptr_t vaddr, int len) +{ + invalidate_dcache_range(rounddown(vaddr, ARCH_DMA_MINALIGN), + roundup(vaddr + len, ARCH_DMA_MINALIGN)); +} + +static void netsec_cache_flush(uintptr_t vaddr, int len) +{ + flush_dcache_range(rounddown(vaddr, ARCH_DMA_MINALIGN), + roundup(vaddr + len, ARCH_DMA_MINALIGN)); +} + +static void netsec_set_rx_de(struct netsec_priv *priv, u16 idx, void *addr) +{ + struct netsec_de *de = &priv->rxde[idx]; + u32 attr = (1 << NETSEC_RX_PKT_OWN_FIELD) | + (1 << NETSEC_RX_PKT_FS_FIELD) | + (1 << NETSEC_RX_PKT_LS_FIELD); + + if (idx == PKTBUFSRX - 1) + attr |= (1 << NETSEC_RX_PKT_LD_FIELD); + + de->data_buf_addr_up = upper_32_bits((dma_addr_t)addr); + de->data_buf_addr_lw = lower_32_bits((dma_addr_t)addr); + de->buf_len_info = PKTSIZE; + de->attr = attr; + dmb(); + netsec_cache_flush((uintptr_t)de, sizeof(*de)); +} + +static void netsec_set_tx_de(struct netsec_priv *priv, void *addr, int len) +{ + struct netsec_de *de = &priv->txde[0]; + u32 attr; + + attr = (1 << NETSEC_TX_SHIFT_OWN_FIELD) | + (1 << NETSEC_TX_SHIFT_PT_FIELD) | + (NETSEC_RING_GMAC << NETSEC_TX_SHIFT_TDRID_FIELD) | + (1 << NETSEC_TX_SHIFT_FS_FIELD) | + (1 << NETSEC_TX_LAST) | + (1 << NETSEC_TX_SHIFT_TRS_FIELD) | + (1 << NETSEC_TX_SHIFT_LD_FIELD); + + de->data_buf_addr_up = upper_32_bits((dma_addr_t)addr); + de->data_buf_addr_lw = lower_32_bits((dma_addr_t)addr); + de->buf_len_info = len; + de->attr = attr; + dmb(); + netsec_cache_flush((uintptr_t)de, sizeof(*de)); +} + +static int netsec_get_phy_reg(struct netsec_priv *priv, + int phy_addr, int reg_addr) +{ + u32 data; + int ret; + + if (phy_addr != 7) + return -EINVAL; + + if (netsec_set_mac_reg(priv, GMAC_REG_GAR, NETSEC_GMAC_GAR_REG_GB | + phy_addr << NETSEC_GMAC_GAR_REG_SHIFT_PA | + reg_addr << NETSEC_GMAC_GAR_REG_SHIFT_GR | + (netsec_clk_type(priv->freq) << + GMAC_REG_SHIFT_CR_GAR))) + return -ETIMEDOUT; + + ret = netsec_mac_wait_while_busy(priv, GMAC_REG_GAR, + NETSEC_GMAC_GAR_REG_GB); + if (ret) + return ret; + + ret = netsec_get_mac_reg(priv, GMAC_REG_GDR, &data); + if (ret) + return ret; + + return data; +} + +static int netsec_set_phy_reg(struct netsec_priv *priv, + int phy_addr, int reg_addr, u16 val) +{ + int ret; + + if (phy_addr != 7) + return -EINVAL; + if (netsec_set_mac_reg(priv, GMAC_REG_GDR, val)) + return -ETIMEDOUT; + + if (netsec_set_mac_reg(priv, GMAC_REG_GAR, + phy_addr << NETSEC_GMAC_GAR_REG_SHIFT_PA | + reg_addr << NETSEC_GMAC_GAR_REG_SHIFT_GR | + NETSEC_GMAC_GAR_REG_GW | NETSEC_GMAC_GAR_REG_GB | + (netsec_clk_type(priv->freq) << + GMAC_REG_SHIFT_CR_GAR))) + return -ETIMEDOUT; + + ret = netsec_mac_wait_while_busy(priv, GMAC_REG_GAR, + NETSEC_GMAC_GAR_REG_GB); + + /* Developerbox implements RTL8211E PHY and there is + * a compatibility problem with F_GMAC4. + * RTL8211E expects MDC clock must be kept toggling for several + * clock cycle with MDIO high before entering the IDLE state. + * To meet this requirement, netsec driver needs to issue dummy + * read(e.g. read PHYID1(offset 0x2) register) right after write. + */ + netsec_get_phy_reg(priv, phy_addr, MII_PHYSID1); + + return ret; +} + +static int netsec_mac_update_to_phy_state(struct netsec_priv *priv) +{ + struct phy_device *phydev = priv->phydev; + u32 value = 0; + + value = phydev->duplex ? NETSEC_GMAC_MCR_REG_FULL_DUPLEX_COMMON : + NETSEC_GMAC_MCR_REG_HALF_DUPLEX_COMMON; + + if (phydev->speed != SPEED_1000) + value |= NETSEC_MCR_PS; + + if (phydev->interface != PHY_INTERFACE_MODE_GMII && + phydev->speed == SPEED_100) + value |= NETSEC_GMAC_MCR_REG_FES; + + value |= NETSEC_GMAC_MCR_REG_CST | NETSEC_GMAC_MCR_REG_JE; + + if (phy_interface_is_rgmii(phydev)) + value |= NETSEC_GMAC_MCR_REG_IBN; + + if (netsec_set_mac_reg(priv, GMAC_REG_MCR, value)) + return -ETIMEDOUT; + + return 0; +} + +static int netsec_start_gmac(struct netsec_priv *priv) +{ + u32 value = 0; + int ret; + + if (priv->max_speed != SPEED_1000) + value = (NETSEC_GMAC_MCR_REG_CST | + NETSEC_GMAC_MCR_REG_HALF_DUPLEX_COMMON); + + if (netsec_set_mac_reg(priv, GMAC_REG_MCR, value)) + return -ETIMEDOUT; + + if (netsec_set_mac_reg(priv, GMAC_REG_BMR, + NETSEC_GMAC_BMR_REG_RESET)) + return -ETIMEDOUT; + + /* Wait soft reset */ + mdelay(5); + + ret = netsec_get_mac_reg(priv, GMAC_REG_BMR, &value); + if (ret) + return ret; + + if (value & NETSEC_GMAC_BMR_REG_SWR) + return -EAGAIN; + + netsec_write_reg(priv, MAC_REG_DESC_SOFT_RST, 1); + if (netsec_wait_while_busy(priv, MAC_REG_DESC_SOFT_RST, 1)) + return -ETIMEDOUT; + + netsec_write_reg(priv, MAC_REG_DESC_INIT, 1); + if (netsec_wait_while_busy(priv, MAC_REG_DESC_INIT, 1)) + return -ETIMEDOUT; + + if (netsec_set_mac_reg(priv, GMAC_REG_BMR, + NETSEC_GMAC_BMR_REG_COMMON)) + return -ETIMEDOUT; + + if (netsec_set_mac_reg(priv, GMAC_REG_RDLAR, + NETSEC_GMAC_RDLAR_REG_COMMON)) + return -ETIMEDOUT; + + if (netsec_set_mac_reg(priv, GMAC_REG_TDLAR, + NETSEC_GMAC_TDLAR_REG_COMMON)) + return -ETIMEDOUT; + + if (netsec_set_mac_reg(priv, GMAC_REG_MFFR, 0x80000001)) + return -ETIMEDOUT; + + ret = netsec_mac_update_to_phy_state(priv); + if (ret) + return ret; + + ret = netsec_get_mac_reg(priv, GMAC_REG_OMR, &value); + if (ret) + return ret; + + value |= NETSEC_GMAC_OMR_REG_SR; + value |= NETSEC_GMAC_OMR_REG_ST; + + netsec_write_reg(priv, NETSEC_REG_NRM_RX_INTEN_CLR, ~0); + netsec_write_reg(priv, NETSEC_REG_NRM_TX_INTEN_CLR, ~0); + + if (netsec_set_mac_reg(priv, GMAC_REG_OMR, value)) + return -ETIMEDOUT; + + return 0; +} + +static int netsec_stop_gmac(struct netsec_priv *priv) +{ + u32 value; + int ret; + + ret = netsec_get_mac_reg(priv, GMAC_REG_OMR, &value); + if (ret) + return ret; + value &= ~NETSEC_GMAC_OMR_REG_SR; + value &= ~NETSEC_GMAC_OMR_REG_ST; + + /* disable all interrupts */ + netsec_write_reg(priv, NETSEC_REG_NRM_RX_INTEN_CLR, ~0); + netsec_write_reg(priv, NETSEC_REG_NRM_TX_INTEN_CLR, ~0); + + return netsec_set_mac_reg(priv, GMAC_REG_OMR, value); +} + +static void netsec_spi_read(char *buf, loff_t len, loff_t offset) +{ + struct udevice *new; + struct spi_flash *flash; + + spi_flash_probe_bus_cs(CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS, + CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE, &new); + flash = dev_get_uclass_priv(new); + + spi_flash_read(flash, offset, len, buf); +} + +static int netsec_read_rom_hwaddr(struct udevice *dev) +{ + struct netsec_priv *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_plat(dev); + char macp[NOR_BLOCK]; + + netsec_spi_read(macp, sizeof(macp), priv->eeprom_base); + + pdata->enetaddr[0] = readb(macp + 3); + pdata->enetaddr[1] = readb(macp + 2); + pdata->enetaddr[2] = readb(macp + 1); + pdata->enetaddr[3] = readb(macp + 0); + pdata->enetaddr[4] = readb(macp + 7); + pdata->enetaddr[5] = readb(macp + 6); + return 0; +} + +static int netsec_send(struct udevice *dev, void *packet, int length) +{ + struct netsec_priv *priv = dev_get_priv(dev); + u32 val, tout; + + val = netsec_read_reg(priv, NETSEC_REG_NRM_TX_STATUS); + netsec_cache_flush((uintptr_t)packet, length); + netsec_set_tx_de(priv, packet, length); + netsec_write_reg(priv, NETSEC_REG_NRM_TX_PKTCNT, 1); /* submit another tx */ + + val = netsec_read_reg(priv, NETSEC_REG_NRM_TX_PKTCNT); + + tout = 10000; + do { + val = netsec_read_reg(priv, NETSEC_REG_NRM_TX_DONE_PKTCNT); + udelay(2); + } while (--tout && !val); + + if (!tout) { + val = netsec_read_reg(priv, NETSEC_REG_NRM_TX_PKTCNT); + pr_err("%s: ETIMEDOUT: %dpackets\n", __func__, val); + return -ETIMEDOUT; + } + + return 0; +} + +static int netsec_free_packet(struct udevice *dev, uchar *packet, int length) +{ + struct netsec_priv *priv = dev_get_priv(dev); + + netsec_set_rx_de(priv, priv->rxat, net_rx_packets[priv->rxat]); + + priv->rxat++; + if (priv->rxat == PKTBUFSRX) + priv->rxat = 0; + + return 0; +} + +static int netsec_recv(struct udevice *dev, int flags, uchar **packetp) +{ + struct netsec_priv *priv = dev_get_priv(dev); + int idx = priv->rxat; + uchar *ptr = net_rx_packets[idx]; + struct netsec_de *de = &priv->rxde[idx]; + int length = 0; + + netsec_cache_invalidate((uintptr_t)de, sizeof(*de)); + + if (de->attr & (1U << NETSEC_RX_PKT_OWN_FIELD)) + return -EAGAIN; + + length = de->buf_len_info >> 16; + + /* invalidate after DMA is done */ + netsec_cache_invalidate((uintptr_t)ptr, length); + *packetp = ptr; + + return length; +} + +static int _netsec_get_phy_reg(struct mii_dev *bus, + int phy_addr, int devad, int reg_addr) +{ + return netsec_get_phy_reg(bus->priv, phy_addr, reg_addr); +} + +static int _netsec_set_phy_reg(struct mii_dev *bus, + int phy_addr, int devad, int reg_addr, u16 val) +{ + return netsec_set_phy_reg(bus->priv, phy_addr, reg_addr, val); +} + +static int netsec_mdiobus_init(struct netsec_priv *priv, const char *name) +{ + struct mii_dev *bus = mdio_alloc(); + + if (!bus) + return -ENOMEM; + + bus->read = _netsec_get_phy_reg; + bus->write = _netsec_set_phy_reg; + snprintf(bus->name, sizeof(bus->name), "%s", name); + bus->priv = priv; + + return mdio_register(bus); +} + +static int netsec_phy_init(struct netsec_priv *priv, void *dev) +{ + struct phy_device *phydev; + int ret; + + phydev = phy_connect(priv->bus, priv->phy_addr, dev, priv->phy_mode); + + phydev->supported &= PHY_GBIT_FEATURES; + if (priv->max_speed) { + ret = phy_set_supported(phydev, priv->max_speed); + if (ret) + return ret; + } + phydev->advertising = phydev->supported; + + priv->phydev = phydev; + phy_config(phydev); + + return 0; +} + +static int netsec_netdev_load_ucode_region(struct netsec_priv *priv, u32 reg, + u32 addr_h, u32 addr_l, u32 size) +{ + u64 base = ((u64)addr_h << 32 | addr_l) - EERPROM_MAP_OFFSET; + + while (size > 0) { + char buf[NOR_BLOCK]; + u32 *ucode = (u32 *)buf; + u64 off; + int i; + + off = base % NOR_BLOCK; + base -= off; + netsec_spi_read(buf, sizeof(buf), base); + + for (i = off / 4; i < sizeof(buf) / 4 && size > 0; i++, size--) + netsec_write_reg(priv, reg, ucode[i]); + base += NOR_BLOCK; + } + + return 0; +} + +static int netsec_netdev_load_microcode(struct netsec_priv *priv) +{ + u32 addr_h, addr_l, size; + char buf[NOR_BLOCK]; + u32 *ucinfo = (u32 *)buf; + int err; + + netsec_spi_read(buf, sizeof(buf), priv->eeprom_base); + + addr_h = ucinfo[NETSEC_EEPROM_HM_ME_ADDRESS_H >> 2]; + addr_l = ucinfo[NETSEC_EEPROM_HM_ME_ADDRESS_L >> 2]; + size = ucinfo[NETSEC_EEPROM_HM_ME_SIZE >> 2]; + + err = netsec_netdev_load_ucode_region(priv, NETSEC_REG_DMAC_HM_CMD_BUF, + addr_h, addr_l, size); + if (err) + return err; + + addr_h = ucinfo[NETSEC_EEPROM_MH_ME_ADDRESS_H >> 2]; + addr_l = ucinfo[NETSEC_EEPROM_MH_ME_ADDRESS_L >> 2]; + size = ucinfo[NETSEC_EEPROM_MH_ME_SIZE >> 2]; + + err = netsec_netdev_load_ucode_region(priv, NETSEC_REG_DMAC_MH_CMD_BUF, + addr_h, addr_l, size); + if (err) + return err; + + addr_h = 0; + addr_l = ucinfo[NETSEC_EEPROM_PKT_ME_ADDRESS >> 2]; + size = ucinfo[NETSEC_EEPROM_PKT_ME_SIZE >> 2]; + + err = netsec_netdev_load_ucode_region(priv, NETSEC_REG_PKT_CMD_BUF, + addr_h, addr_l, size); + if (err) + return err; + + return 0; +} + +void netsec_pre_init_microengine(struct netsec_priv *priv) +{ + u32 data; + + /* Remove dormant settings */ + data = netsec_get_phy_reg(priv, priv->phy_addr, MII_BMCR); + data &= ~BMCR_PDOWN; + data |= BMCR_ISOLATE; + netsec_set_phy_reg(priv, priv->phy_addr, MII_BMCR, data); + mdelay(100); + + /* Put phy in loopback mode to guarantee RXCLK input */ + data |= BMCR_LOOPBACK; + netsec_set_phy_reg(priv, priv->phy_addr, MII_BMCR, data); + mdelay(100); +} + +void netsec_post_init_microengine(struct netsec_priv *priv) +{ + u32 data; + + /* Get phy back to normal operation */ + data = netsec_get_phy_reg(priv, priv->phy_addr, MII_BMCR); + data &= ~BMCR_LOOPBACK; + netsec_set_phy_reg(priv, priv->phy_addr, MII_BMCR, data); + mdelay(100); + + /* Apply software reset */ + data |= BMCR_RESET; + netsec_set_phy_reg(priv, priv->phy_addr, MII_BMCR, data); + mdelay(100); +} + +static int netsec_reset_hardware(struct netsec_priv *priv, bool load_ucode) +{ + u32 value; + int err; + + netsec_write_reg(priv, NETSEC_REG_CLK_EN, 0x24); + + /* stop DMA engines */ + if (!netsec_read_reg(priv, NETSEC_REG_ADDR_DIS_CORE)) { + netsec_write_reg(priv, NETSEC_REG_DMA_HM_CTRL, + NETSEC_DMA_CTRL_REG_STOP); + netsec_write_reg(priv, NETSEC_REG_DMA_MH_CTRL, + NETSEC_DMA_CTRL_REG_STOP); + + value = 100; + while (netsec_read_reg(priv, NETSEC_REG_DMA_HM_CTRL) & + NETSEC_DMA_CTRL_REG_STOP) { + udelay(1000); + if (--value == 0) { + pr_err("%s:%d timeout!\n", __func__, __LINE__); + break; + } + } + + value = 100; + while (netsec_read_reg(priv, NETSEC_REG_DMA_MH_CTRL) & + NETSEC_DMA_CTRL_REG_STOP) { + udelay(1000); + if (--value == 0) { + pr_err("%s:%d timeout!\n", __func__, __LINE__); + break; + } + } + } + + netsec_set_mac_reg(priv, GMAC_REG_BMR, NETSEC_GMAC_BMR_REG_RESET); + + netsec_write_reg(priv, NETSEC_REG_SOFT_RST, NETSEC_SOFT_RST_REG_RESET); + netsec_write_reg(priv, NETSEC_REG_SOFT_RST, NETSEC_SOFT_RST_REG_RUN); + netsec_write_reg(priv, NETSEC_REG_COM_INIT, NETSEC_COM_INIT_REG_ALL); + + value = 100; + while (netsec_read_reg(priv, NETSEC_REG_COM_INIT) != 0) { + udelay(1000); + if (--value == 0) { + pr_err("%s:%d COM_INIT timeout!\n", __func__, __LINE__); + break; + } + } + + /* MAC desc init */ + netsec_write_reg(priv, MAC_REG_DESC_INIT, 1); + netsec_wait_while_busy(priv, MAC_REG_DESC_INIT, 1); + /* set MAC_INTF_SEL */ + netsec_write_reg(priv, MAC_REG_INTF_SEL, 1); + + netsec_write_reg(priv, NETSEC_REG_CLK_EN, 1 << 5); + + /* set desc_start addr */ + netsec_write_reg(priv, NETSEC_REG_NRM_RX_DESC_START_UP, + upper_32_bits((dma_addr_t)priv->rxde)); + netsec_write_reg(priv, NETSEC_REG_NRM_RX_DESC_START_LW, + lower_32_bits((dma_addr_t)priv->rxde)); + + netsec_write_reg(priv, NETSEC_REG_NRM_TX_DESC_START_UP, + upper_32_bits((dma_addr_t)priv->txde)); + netsec_write_reg(priv, NETSEC_REG_NRM_TX_DESC_START_LW, + lower_32_bits((dma_addr_t)priv->txde)); + + /* set normal tx dring ring config */ + netsec_write_reg(priv, NETSEC_REG_NRM_TX_CONFIG, + 1 << NETSEC_REG_DESC_ENDIAN); + netsec_write_reg(priv, NETSEC_REG_NRM_RX_CONFIG, + 1 << NETSEC_REG_DESC_ENDIAN); + + if (load_ucode) { + err = netsec_netdev_load_microcode(priv); + if (err) { + pr_err("%s: failed to load microcode (%d)\n", + __func__, err); + return err; + } + } + + /* set desc_start addr */ + netsec_write_reg(priv, NETSEC_REG_NRM_RX_DESC_START_UP, + upper_32_bits((dma_addr_t)priv->rxde)); + netsec_write_reg(priv, NETSEC_REG_NRM_RX_DESC_START_LW, + lower_32_bits((dma_addr_t)priv->rxde)); + + netsec_write_reg(priv, NETSEC_REG_NRM_TX_DESC_START_UP, + upper_32_bits((dma_addr_t)priv->txde)); + netsec_write_reg(priv, NETSEC_REG_NRM_TX_DESC_START_LW, + lower_32_bits((dma_addr_t)priv->txde)); + + netsec_write_reg(priv, NETSEC_REG_CLK_EN, 1 << 5); + + /* start DMA engines */ + netsec_write_reg(priv, NETSEC_REG_DMA_TMR_CTRL, priv->freq / 1000000 - 1); + + netsec_pre_init_microengine(priv); + + netsec_write_reg(priv, NETSEC_REG_ADDR_DIS_CORE, 0); + + mdelay(100); + + if (!(netsec_read_reg(priv, NETSEC_REG_TOP_STATUS) & + NETSEC_TOP_IRQ_REG_ME_START)) { + pr_err("microengine start failed\n"); + return -ENXIO; + } + + netsec_post_init_microengine(priv); + + /* clear microcode load end status */ + netsec_write_reg(priv, NETSEC_REG_TOP_STATUS, + NETSEC_TOP_IRQ_REG_ME_START); + + netsec_write_reg(priv, NETSEC_REG_CLK_EN, 1 << 5); + + value = netsec_read_reg(priv, NETSEC_REG_PKT_CTRL); + value |= NETSEC_PKT_CTRL_REG_MODE_NRM; + /* change to normal mode */ + netsec_write_reg(priv, NETSEC_REG_DMA_MH_CTRL, MH_CTRL__MODE_TRANS); + netsec_write_reg(priv, NETSEC_REG_PKT_CTRL, value); + + value = 100; + while ((netsec_read_reg(priv, NETSEC_REG_MODE_TRANS_COMP_STATUS) & + NETSEC_MODE_TRANS_COMP_IRQ_T2N) == 0) { + udelay(1000); + if (--value == 0) { + value = netsec_read_reg(priv, NETSEC_REG_MODE_TRANS_COMP_STATUS); + pr_err("%s:%d timeout! val=%x\n", __func__, __LINE__, value); + break; + } + } + + /* clear any pending EMPTY/ERR irq status */ + netsec_write_reg(priv, NETSEC_REG_NRM_TX_STATUS, ~0); + + /* Disable TX & RX intr */ + netsec_write_reg(priv, NETSEC_REG_INTEN_CLR, ~0); + + return 0; +} + +static void netsec_stop(struct udevice *dev) +{ + struct netsec_priv *priv = dev_get_priv(dev); + + netsec_write_reg(priv, NETSEC_REG_ADDR_DIS_CORE, 7); + netsec_stop_gmac(priv); + phy_shutdown(priv->phydev); + netsec_reset_hardware(priv, false); +} + +static int netsec_start(struct udevice *dev) +{ + struct netsec_priv *priv = dev_get_priv(dev); + int i; + + phy_startup(priv->phydev); + netsec_start_gmac(priv); + + priv->rxat = 0; + for (i = 0; i < PKTBUFSRX; i++) + netsec_set_rx_de(priv, i, net_rx_packets[i]); + + return 0; +} + +static int netsec_of_to_plat(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_plat(dev); + struct netsec_priv *priv = dev_get_priv(dev); + struct ofnode_phandle_args phandle_args; + const char *phy_mode; + + pdata->iobase = dev_read_addr_index(dev, 0); + priv->eeprom_base = dev_read_addr_index(dev, 1) - EERPROM_MAP_OFFSET; + + pdata->phy_interface = -1; + phy_mode = dev_read_prop(dev, "phy-mode", NULL); + if (phy_mode) + pdata->phy_interface = phy_get_interface_by_name(phy_mode); + if (pdata->phy_interface == -1) { + pr_err("%s: Invalid PHY interface '%s'\n", __func__, phy_mode); + return -EINVAL; + } + + if (!dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0, + &phandle_args)) + priv->phy_addr = ofnode_read_u32_default(phandle_args.node, "reg", 7); + else + priv->phy_addr = 7; + + pdata->max_speed = dev_read_u32_default(dev, "max-speed", SPEED_1000); + + priv->ioaddr = pdata->iobase; + priv->phy_mode = pdata->phy_interface; + priv->max_speed = pdata->max_speed; + priv->freq = 250000000UL; + + return 0; +} + +#define SMMU_SCR0_SHCFG_INNER (0x2 << 22) +#define SMMU_SCR0_MTCFG (0x1 << 20) +#define SMMU_SCR0_MEMATTR_INNER_OUTER_WB (0xf << 16) + +static int netsec_probe(struct udevice *dev) +{ + struct netsec_priv *priv = dev_get_priv(dev); + int ret; + + writel(SMMU_SCR0_SHCFG_INNER | SMMU_SCR0_MTCFG | SMMU_SCR0_MEMATTR_INNER_OUTER_WB, + (phys_addr_t)0x52E00000); + + netsec_reset_hardware(priv, true); + + ret = netsec_mdiobus_init(priv, dev->name); + if (ret) { + pr_err("Failed to initialize mdiobus: %d\n", ret); + return ret; + } + + priv->bus = miiphy_get_dev_by_name(dev->name); + + ret = netsec_phy_init(priv, dev); + if (ret) { + pr_err("Failed to initialize phy: %d\n", ret); + goto out_mdiobus_release; + } + + return 0; +out_mdiobus_release: + mdio_unregister(priv->bus); + mdio_free(priv->bus); + return ret; +} + +static int netsec_remove(struct udevice *dev) +{ + struct netsec_priv *priv = dev_get_priv(dev); + + free(priv->phydev); + mdio_unregister(priv->bus); + mdio_free(priv->bus); + + return 0; +} + +static const struct eth_ops netsec_ops = { + .start = netsec_start, + .stop = netsec_stop, + .send = netsec_send, + .recv = netsec_recv, + .free_pkt = netsec_free_packet, + .read_rom_hwaddr = netsec_read_rom_hwaddr, +}; + +static const struct udevice_id netsec_ids[] = { + { + .compatible = "socionext,synquacer-netsec", + }, + {} +}; + +U_BOOT_DRIVER(ave) = { + .name = "synquacer_netsec", + .id = UCLASS_ETH, + .of_match = netsec_ids, + .probe = netsec_probe, + .remove = netsec_remove, + .of_to_plat = netsec_of_to_plat, + .ops = &netsec_ops, + .priv_auto = sizeof(struct netsec_priv), + .plat_auto = sizeof(struct eth_pdata), +};