/*
 * aQuantia Corporation Network Driver
 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 */

/* File hw_atl_utils.c: Definition of common functions for Atlantic hardware
 * abstraction layer.
 */

#include "../aq_nic.h"
#include "../aq_hw_utils.h"
#include "hw_atl_utils.h"
#include "hw_atl_llh.h"
#include "hw_atl_llh_internal.h"

#include <linux/random.h>

#define HW_ATL_UCP_0X370_REG    0x0370U

#define HW_ATL_MIF_CMD          0x0200U
#define HW_ATL_MIF_ADDR         0x0208U
#define HW_ATL_MIF_VAL          0x020CU

#define HW_ATL_FW_SM_RAM        0x2U
#define HW_ATL_MPI_FW_VERSION	0x18
#define HW_ATL_MPI_CONTROL_ADR  0x0368U
#define HW_ATL_MPI_STATE_ADR    0x036CU

#define HW_ATL_MPI_STATE_MSK      0x00FFU
#define HW_ATL_MPI_STATE_SHIFT    0U
#define HW_ATL_MPI_SPEED_MSK      0x00FF0000U
#define HW_ATL_MPI_SPEED_SHIFT    16U
#define HW_ATL_MPI_DIRTY_WAKE_MSK 0x02000000U

#define HW_ATL_MPI_DAISY_CHAIN_STATUS	0x704
#define HW_ATL_MPI_BOOT_EXIT_CODE	0x388

#define HW_ATL_MAC_PHY_CONTROL	0x4000
#define HW_ATL_MAC_PHY_MPI_RESET_BIT 0x1D

#define HW_ATL_FW_VER_1X 0x01050006U
#define HW_ATL_FW_VER_2X 0x02000000U
#define HW_ATL_FW_VER_3X 0x03000000U

#define FORCE_FLASHLESS 0

static int hw_atl_utils_ver_match(u32 ver_expected, u32 ver_actual);
static int hw_atl_utils_mpi_set_state(struct aq_hw_s *self,
				      enum hal_atl_utils_fw_state_e state);

int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops)
{
	int err = 0;

	err = hw_atl_utils_soft_reset(self);
	if (err)
		return err;

	hw_atl_utils_hw_chip_features_init(self,
					   &self->chip_features);

	hw_atl_utils_get_fw_version(self, &self->fw_ver_actual);

	if (hw_atl_utils_ver_match(HW_ATL_FW_VER_1X,
				   self->fw_ver_actual) == 0) {
		*fw_ops = &aq_fw_1x_ops;
	} else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_2X,
					self->fw_ver_actual) == 0) {
		*fw_ops = &aq_fw_2x_ops;
	} else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_3X,
					self->fw_ver_actual) == 0) {
		*fw_ops = &aq_fw_2x_ops;
	} else {
		aq_pr_err("Bad FW version detected: %x\n",
			  self->fw_ver_actual);
		return -EOPNOTSUPP;
	}
	self->aq_fw_ops = *fw_ops;
	err = self->aq_fw_ops->init(self);
	return err;
}

static int hw_atl_utils_soft_reset_flb(struct aq_hw_s *self)
{
	u32 gsr, val;
	int k = 0;

	aq_hw_write_reg(self, 0x404, 0x40e1);
	AQ_HW_SLEEP(50);

	/* Cleanup SPI */
	val = aq_hw_read_reg(self, 0x53C);
	aq_hw_write_reg(self, 0x53C, val | 0x10);

	gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR);
	aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR, (gsr & 0xBFFF) | 0x8000);

	/* Kickstart MAC */
	aq_hw_write_reg(self, 0x404, 0x80e0);
	aq_hw_write_reg(self, 0x32a8, 0x0);
	aq_hw_write_reg(self, 0x520, 0x1);

	/* Reset SPI again because of possible interrupted SPI burst */
	val = aq_hw_read_reg(self, 0x53C);
	aq_hw_write_reg(self, 0x53C, val | 0x10);
	AQ_HW_SLEEP(10);
	/* Clear SPI reset state */
	aq_hw_write_reg(self, 0x53C, val & ~0x10);

	aq_hw_write_reg(self, 0x404, 0x180e0);

	for (k = 0; k < 1000; k++) {
		u32 flb_status = aq_hw_read_reg(self,
						HW_ATL_MPI_DAISY_CHAIN_STATUS);

		flb_status = flb_status & 0x10;
		if (flb_status)
			break;
		AQ_HW_SLEEP(10);
	}
	if (k == 1000) {
		aq_pr_err("MAC kickstart failed\n");
		return -EIO;
	}

	/* FW reset */
	aq_hw_write_reg(self, 0x404, 0x80e0);
	AQ_HW_SLEEP(50);
	aq_hw_write_reg(self, 0x3a0, 0x1);

	/* Kickstart PHY - skipped */

	/* Global software reset*/
	hw_atl_rx_rx_reg_res_dis_set(self, 0U);
	hw_atl_tx_tx_reg_res_dis_set(self, 0U);
	aq_hw_write_reg_bit(self, HW_ATL_MAC_PHY_CONTROL,
			    BIT(HW_ATL_MAC_PHY_MPI_RESET_BIT),
			    HW_ATL_MAC_PHY_MPI_RESET_BIT, 0x0);
	gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR);
	aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR, (gsr & 0xBFFF) | 0x8000);

	for (k = 0; k < 1000; k++) {
		u32 fw_state = aq_hw_read_reg(self, HW_ATL_MPI_FW_VERSION);

		if (fw_state)
			break;
		AQ_HW_SLEEP(10);
	}
	if (k == 1000) {
		aq_pr_err("FW kickstart failed\n");
		return -EIO;
	}
	/* Old FW requires fixed delay after init */
	AQ_HW_SLEEP(15);

	return 0;
}

static int hw_atl_utils_soft_reset_rbl(struct aq_hw_s *self)
{
	u32 gsr, val, rbl_status;
	int k;

	aq_hw_write_reg(self, 0x404, 0x40e1);
	aq_hw_write_reg(self, 0x3a0, 0x1);
	aq_hw_write_reg(self, 0x32a8, 0x0);

	/* Alter RBL status */
	aq_hw_write_reg(self, 0x388, 0xDEAD);

	/* Cleanup SPI */
	val = aq_hw_read_reg(self, 0x53C);
	aq_hw_write_reg(self, 0x53C, val | 0x10);

	/* Global software reset*/
	hw_atl_rx_rx_reg_res_dis_set(self, 0U);
	hw_atl_tx_tx_reg_res_dis_set(self, 0U);
	aq_hw_write_reg_bit(self, HW_ATL_MAC_PHY_CONTROL,
			    BIT(HW_ATL_MAC_PHY_MPI_RESET_BIT),
			    HW_ATL_MAC_PHY_MPI_RESET_BIT, 0x0);
	gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR);
	aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR,
			(gsr & 0xFFFFBFFF) | 0x8000);

	if (FORCE_FLASHLESS)
		aq_hw_write_reg(self, 0x534, 0x0);

	aq_hw_write_reg(self, 0x404, 0x40e0);

	/* Wait for RBL boot */
	for (k = 0; k < 1000; k++) {
		rbl_status = aq_hw_read_reg(self, 0x388) & 0xFFFF;
		if (rbl_status && rbl_status != 0xDEAD)
			break;
		AQ_HW_SLEEP(10);
	}
	if (!rbl_status || rbl_status == 0xDEAD) {
		aq_pr_err("RBL Restart failed");
		return -EIO;
	}

	/* Restore NVR */
	if (FORCE_FLASHLESS)
		aq_hw_write_reg(self, 0x534, 0xA0);

	if (rbl_status == 0xF1A7) {
		aq_pr_err("No FW detected. Dynamic FW load not implemented\n");
		return -ENOTSUPP;
	}

	for (k = 0; k < 1000; k++) {
		u32 fw_state = aq_hw_read_reg(self, HW_ATL_MPI_FW_VERSION);

		if (fw_state)
			break;
		AQ_HW_SLEEP(10);
	}
	if (k == 1000) {
		aq_pr_err("FW kickstart failed\n");
		return -EIO;
	}
	/* Old FW requires fixed delay after init */
	AQ_HW_SLEEP(15);

	return 0;
}

int hw_atl_utils_soft_reset(struct aq_hw_s *self)
{
	int k;
	u32 boot_exit_code = 0;

	for (k = 0; k < 1000; ++k) {
		u32 flb_status = aq_hw_read_reg(self,
						HW_ATL_MPI_DAISY_CHAIN_STATUS);
		boot_exit_code = aq_hw_read_reg(self,
						HW_ATL_MPI_BOOT_EXIT_CODE);
		if (flb_status != 0x06000000 || boot_exit_code != 0)
			break;
	}

	if (k == 1000) {
		aq_pr_err("Neither RBL nor FLB firmware started\n");
		return -EOPNOTSUPP;
	}

	self->rbl_enabled = (boot_exit_code != 0);

	/* FW 1.x may bootup in an invalid POWER state (WOL feature).
	 * We should work around this by forcing its state back to DEINIT
	 */
	if (!hw_atl_utils_ver_match(HW_ATL_FW_VER_1X,
				    aq_hw_read_reg(self,
						   HW_ATL_MPI_FW_VERSION))) {
		int err = 0;

		hw_atl_utils_mpi_set_state(self, MPI_DEINIT);
		AQ_HW_WAIT_FOR((aq_hw_read_reg(self, HW_ATL_MPI_STATE_ADR) &
			       HW_ATL_MPI_STATE_MSK) == MPI_DEINIT,
			       10, 1000U);
		if (err)
			return err;
	}

	if (self->rbl_enabled)
		return hw_atl_utils_soft_reset_rbl(self);
	else
		return hw_atl_utils_soft_reset_flb(self);
}

int hw_atl_utils_fw_downld_dwords(struct aq_hw_s *self, u32 a,
				  u32 *p, u32 cnt)
{
	int err = 0;

	AQ_HW_WAIT_FOR(hw_atl_reg_glb_cpu_sem_get(self,
						  HW_ATL_FW_SM_RAM) == 1U,
						  1U, 10000U);

	if (err < 0) {
		bool is_locked;

		hw_atl_reg_glb_cpu_sem_set(self, 1U, HW_ATL_FW_SM_RAM);
		is_locked = hw_atl_reg_glb_cpu_sem_get(self, HW_ATL_FW_SM_RAM);
		if (!is_locked) {
			err = -ETIME;
			goto err_exit;
		}
	}

	aq_hw_write_reg(self, HW_ATL_MIF_ADDR, a);

	for (++cnt; --cnt && !err;) {
		aq_hw_write_reg(self, HW_ATL_MIF_CMD, 0x00008000U);

		if (IS_CHIP_FEATURE(REVISION_B1))
			AQ_HW_WAIT_FOR(a != aq_hw_read_reg(self,
							   HW_ATL_MIF_ADDR),
				       1, 1000U);
		else
			AQ_HW_WAIT_FOR(!(0x100 & aq_hw_read_reg(self,
							   HW_ATL_MIF_CMD)),
				       1, 1000U);

		*(p++) = aq_hw_read_reg(self, HW_ATL_MIF_VAL);
		a += 4;
	}

	hw_atl_reg_glb_cpu_sem_set(self, 1U, HW_ATL_FW_SM_RAM);

err_exit:
	return err;
}

static int hw_atl_utils_fw_upload_dwords(struct aq_hw_s *self, u32 a, u32 *p,
					 u32 cnt)
{
	int err = 0;
	bool is_locked;

	is_locked = hw_atl_reg_glb_cpu_sem_get(self, HW_ATL_FW_SM_RAM);
	if (!is_locked) {
		err = -ETIME;
		goto err_exit;
	}
	if (IS_CHIP_FEATURE(REVISION_B1)) {
		u32 offset = 0;

		for (; offset < cnt; ++offset) {
			aq_hw_write_reg(self, 0x328, p[offset]);
			aq_hw_write_reg(self, 0x32C,
					(0x80000000 | (0xFFFF & (offset * 4))));
			hw_atl_mcp_up_force_intr_set(self, 1);
			/* 1000 times by 10us = 10ms */
			AQ_HW_WAIT_FOR((aq_hw_read_reg(self,
						       0x32C) & 0xF0000000) !=
				       0x80000000,
				       10, 1000);
		}
	} else {
		u32 offset = 0;

		aq_hw_write_reg(self, 0x208, a);

		for (; offset < cnt; ++offset) {
			aq_hw_write_reg(self, 0x20C, p[offset]);
			aq_hw_write_reg(self, 0x200, 0xC000);

			AQ_HW_WAIT_FOR((aq_hw_read_reg(self, 0x200U) &
					0x100) == 0, 10, 1000);
		}
	}

	hw_atl_reg_glb_cpu_sem_set(self, 1U, HW_ATL_FW_SM_RAM);

err_exit:
	return err;
}

static int hw_atl_utils_ver_match(u32 ver_expected, u32 ver_actual)
{
	int err = 0;
	const u32 dw_major_mask = 0xff000000U;
	const u32 dw_minor_mask = 0x00ffffffU;

	err = (dw_major_mask & (ver_expected ^ ver_actual)) ? -EOPNOTSUPP : 0;
	if (err < 0)
		goto err_exit;
	err = ((dw_minor_mask & ver_expected) > (dw_minor_mask & ver_actual)) ?
		-EOPNOTSUPP : 0;
err_exit:
	return err;
}

static int hw_atl_utils_init_ucp(struct aq_hw_s *self,
				 const struct aq_hw_caps_s *aq_hw_caps)
{
	int err = 0;

	if (!aq_hw_read_reg(self, 0x370U)) {
		unsigned int rnd = 0U;
		unsigned int ucp_0x370 = 0U;

		get_random_bytes(&rnd, sizeof(unsigned int));

		ucp_0x370 = 0x02020202U | (0xFEFEFEFEU & rnd);
		aq_hw_write_reg(self, HW_ATL_UCP_0X370_REG, ucp_0x370);
	}

	hw_atl_reg_glb_cpu_scratch_scp_set(self, 0x00000000U, 25U);

	/* check 10 times by 1ms */
	AQ_HW_WAIT_FOR(0U != (self->mbox_addr =
			aq_hw_read_reg(self, 0x360U)), 1000U, 10U);

	return err;
}

#define HW_ATL_RPC_CONTROL_ADR 0x0338U
#define HW_ATL_RPC_STATE_ADR   0x033CU

struct aq_hw_atl_utils_fw_rpc_tid_s {
	union {
		u32 val;
		struct {
			u16 tid;
			u16 len;
		};
	};
};

#define hw_atl_utils_fw_rpc_init(_H_) hw_atl_utils_fw_rpc_wait(_H_, NULL)

int hw_atl_utils_fw_rpc_call(struct aq_hw_s *self, unsigned int rpc_size)
{
	int err = 0;
	struct aq_hw_atl_utils_fw_rpc_tid_s sw;

	if (!IS_CHIP_FEATURE(MIPS)) {
		err = -1;
		goto err_exit;
	}
	err = hw_atl_utils_fw_upload_dwords(self, self->rpc_addr,
					    (u32 *)(void *)&self->rpc,
					    (rpc_size + sizeof(u32) -
					    sizeof(u8)) / sizeof(u32));
	if (err < 0)
		goto err_exit;

	sw.tid = 0xFFFFU & (++self->rpc_tid);
	sw.len = (u16)rpc_size;
	aq_hw_write_reg(self, HW_ATL_RPC_CONTROL_ADR, sw.val);

err_exit:
	return err;
}

int hw_atl_utils_fw_rpc_wait(struct aq_hw_s *self,
			     struct hw_aq_atl_utils_fw_rpc **rpc)
{
	int err = 0;
	struct aq_hw_atl_utils_fw_rpc_tid_s sw;
	struct aq_hw_atl_utils_fw_rpc_tid_s fw;

	do {
		sw.val = aq_hw_read_reg(self, HW_ATL_RPC_CONTROL_ADR);

		self->rpc_tid = sw.tid;

		AQ_HW_WAIT_FOR(sw.tid ==
				(fw.val =
				aq_hw_read_reg(self, HW_ATL_RPC_STATE_ADR),
				fw.tid), 1000U, 100U);
		if (err < 0)
			goto err_exit;

		if (fw.len == 0xFFFFU) {
			err = hw_atl_utils_fw_rpc_call(self, sw.len);
			if (err < 0)
				goto err_exit;
		}
	} while (sw.tid != fw.tid || 0xFFFFU == fw.len);
	if (err < 0)
		goto err_exit;

	if (rpc) {
		if (fw.len) {
			err =
			hw_atl_utils_fw_downld_dwords(self,
						      self->rpc_addr,
						      (u32 *)(void *)
						      &self->rpc,
						      (fw.len + sizeof(u32) -
						      sizeof(u8)) /
						      sizeof(u32));
			if (err < 0)
				goto err_exit;
		}

		*rpc = &self->rpc;
	}

err_exit:
	return err;
}

static int hw_atl_utils_mpi_create(struct aq_hw_s *self)
{
	int err = 0;

	err = hw_atl_utils_init_ucp(self, self->aq_nic_cfg->aq_hw_caps);
	if (err < 0)
		goto err_exit;

	err = hw_atl_utils_fw_rpc_init(self);
	if (err < 0)
		goto err_exit;

err_exit:
	return err;
}

int hw_atl_utils_mpi_read_mbox(struct aq_hw_s *self,
			       struct hw_aq_atl_utils_mbox_header *pmbox)
{
	return hw_atl_utils_fw_downld_dwords(self,
				      self->mbox_addr,
				      (u32 *)(void *)pmbox,
				      sizeof(*pmbox) / sizeof(u32));
}

void hw_atl_utils_mpi_read_stats(struct aq_hw_s *self,
				 struct hw_aq_atl_utils_mbox *pmbox)
{
	int err = 0;

	err = hw_atl_utils_fw_downld_dwords(self,
					    self->mbox_addr,
					    (u32 *)(void *)pmbox,
					    sizeof(*pmbox) / sizeof(u32));
	if (err < 0)
		goto err_exit;

	if (IS_CHIP_FEATURE(REVISION_A0)) {
		unsigned int mtu = self->aq_nic_cfg ?
					self->aq_nic_cfg->mtu : 1514U;
		pmbox->stats.ubrc = pmbox->stats.uprc * mtu;
		pmbox->stats.ubtc = pmbox->stats.uptc * mtu;
		pmbox->stats.dpc = atomic_read(&self->dpc);
	} else {
		pmbox->stats.dpc = hw_atl_reg_rx_dma_stat_counter7get(self);
	}

err_exit:;
}

static int hw_atl_utils_mpi_set_speed(struct aq_hw_s *self, u32 speed)
{
	u32 val = aq_hw_read_reg(self, HW_ATL_MPI_CONTROL_ADR);

	val = val & ~HW_ATL_MPI_SPEED_MSK;
	val |= speed << HW_ATL_MPI_SPEED_SHIFT;
	aq_hw_write_reg(self, HW_ATL_MPI_CONTROL_ADR, val);

	return 0;
}

static int hw_atl_utils_mpi_set_state(struct aq_hw_s *self,
				      enum hal_atl_utils_fw_state_e state)
{
	int err = 0;
	u32 transaction_id = 0;
	struct hw_aq_atl_utils_mbox_header mbox;
	u32 val = aq_hw_read_reg(self, HW_ATL_MPI_CONTROL_ADR);

	if (state == MPI_RESET) {
		hw_atl_utils_mpi_read_mbox(self, &mbox);

		transaction_id = mbox.transaction_id;

		AQ_HW_WAIT_FOR(transaction_id !=
				(hw_atl_utils_mpi_read_mbox(self, &mbox),
				 mbox.transaction_id),
			       1000U, 100U);
		if (err < 0)
			goto err_exit;
	}
	/* On interface DEINIT we disable DW (raise bit)
	 * Otherwise enable DW (clear bit)
	 */
	if (state == MPI_DEINIT || state == MPI_POWER)
		val |= HW_ATL_MPI_DIRTY_WAKE_MSK;
	else
		val &= ~HW_ATL_MPI_DIRTY_WAKE_MSK;

	/* Set new state bits */
	val = val & ~HW_ATL_MPI_STATE_MSK;
	val |= state & HW_ATL_MPI_STATE_MSK;

	aq_hw_write_reg(self, HW_ATL_MPI_CONTROL_ADR, val);
err_exit:
	return err;
}

int hw_atl_utils_mpi_get_link_status(struct aq_hw_s *self)
{
	u32 cp0x036C = aq_hw_read_reg(self, HW_ATL_MPI_STATE_ADR);
	u32 link_speed_mask = cp0x036C >> HW_ATL_MPI_SPEED_SHIFT;
	struct aq_hw_link_status_s *link_status = &self->aq_link_status;

	if (!link_speed_mask) {
		link_status->mbps = 0U;
	} else {
		switch (link_speed_mask) {
		case HAL_ATLANTIC_RATE_10G:
			link_status->mbps = 10000U;
			break;

		case HAL_ATLANTIC_RATE_5G:
		case HAL_ATLANTIC_RATE_5GSR:
			link_status->mbps = 5000U;
			break;

		case HAL_ATLANTIC_RATE_2GS:
			link_status->mbps = 2500U;
			break;

		case HAL_ATLANTIC_RATE_1G:
			link_status->mbps = 1000U;
			break;

		case HAL_ATLANTIC_RATE_100M:
			link_status->mbps = 100U;
			break;

		default:
			return -EBUSY;
		}
	}

	return 0;
}

int hw_atl_utils_get_mac_permanent(struct aq_hw_s *self,
				   u8 *mac)
{
	int err = 0;
	u32 h = 0U;
	u32 l = 0U;
	u32 mac_addr[2];

	if (!aq_hw_read_reg(self, HW_ATL_UCP_0X370_REG)) {
		unsigned int rnd = 0;
		unsigned int ucp_0x370 = 0;

		get_random_bytes(&rnd, sizeof(unsigned int));

		ucp_0x370 = 0x02020202 | (0xFEFEFEFE & rnd);
		aq_hw_write_reg(self, HW_ATL_UCP_0X370_REG, ucp_0x370);
	}

	err = hw_atl_utils_fw_downld_dwords(self,
					    aq_hw_read_reg(self, 0x00000374U) +
					    (40U * 4U),
					    mac_addr,
					    ARRAY_SIZE(mac_addr));
	if (err < 0) {
		mac_addr[0] = 0U;
		mac_addr[1] = 0U;
		err = 0;
	} else {
		mac_addr[0] = __swab32(mac_addr[0]);
		mac_addr[1] = __swab32(mac_addr[1]);
	}

	ether_addr_copy(mac, (u8 *)mac_addr);

	if ((mac[0] & 0x01U) || ((mac[0] | mac[1] | mac[2]) == 0x00U)) {
		/* chip revision */
		l = 0xE3000000U
			| (0xFFFFU & aq_hw_read_reg(self, HW_ATL_UCP_0X370_REG))
			| (0x00 << 16);
		h = 0x8001300EU;

		mac[5] = (u8)(0xFFU & l);
		l >>= 8;
		mac[4] = (u8)(0xFFU & l);
		l >>= 8;
		mac[3] = (u8)(0xFFU & l);
		l >>= 8;
		mac[2] = (u8)(0xFFU & l);
		mac[1] = (u8)(0xFFU & h);
		h >>= 8;
		mac[0] = (u8)(0xFFU & h);
	}

	return err;
}

unsigned int hw_atl_utils_mbps_2_speed_index(unsigned int mbps)
{
	unsigned int ret = 0U;

	switch (mbps) {
	case 100U:
		ret = 5U;
		break;

	case 1000U:
		ret = 4U;
		break;

	case 2500U:
		ret = 3U;
		break;

	case 5000U:
		ret = 1U;
		break;

	case 10000U:
		ret = 0U;
		break;

	default:
		break;
	}
	return ret;
}

void hw_atl_utils_hw_chip_features_init(struct aq_hw_s *self, u32 *p)
{
	u32 chip_features = 0U;
	u32 val = hw_atl_reg_glb_mif_id_get(self);
	u32 mif_rev = val & 0xFFU;

	if ((0xFU & mif_rev) == 1U) {
		chip_features |= HAL_ATLANTIC_UTILS_CHIP_REVISION_A0 |
			HAL_ATLANTIC_UTILS_CHIP_MPI_AQ |
			HAL_ATLANTIC_UTILS_CHIP_MIPS;
	} else if ((0xFU & mif_rev) == 2U) {
		chip_features |= HAL_ATLANTIC_UTILS_CHIP_REVISION_B0 |
			HAL_ATLANTIC_UTILS_CHIP_MPI_AQ |
			HAL_ATLANTIC_UTILS_CHIP_MIPS |
			HAL_ATLANTIC_UTILS_CHIP_TPO2 |
			HAL_ATLANTIC_UTILS_CHIP_RPF2;
	} else if ((0xFU & mif_rev) == 0xAU) {
		chip_features |= HAL_ATLANTIC_UTILS_CHIP_REVISION_B1 |
			HAL_ATLANTIC_UTILS_CHIP_MPI_AQ |
			HAL_ATLANTIC_UTILS_CHIP_MIPS |
			HAL_ATLANTIC_UTILS_CHIP_TPO2 |
			HAL_ATLANTIC_UTILS_CHIP_RPF2;
	}

	*p = chip_features;
}

static int hw_atl_fw1x_deinit(struct aq_hw_s *self)
{
	hw_atl_utils_mpi_set_speed(self, 0);
	hw_atl_utils_mpi_set_state(self, MPI_DEINIT);
	return 0;
}

int hw_atl_utils_hw_set_power(struct aq_hw_s *self,
			      unsigned int power_state)
{
	hw_atl_utils_mpi_set_speed(self, 0);
	hw_atl_utils_mpi_set_state(self, MPI_POWER);
	return 0;
}

int hw_atl_utils_update_stats(struct aq_hw_s *self)
{
	struct hw_aq_atl_utils_mbox mbox;

	hw_atl_utils_mpi_read_stats(self, &mbox);

#define AQ_SDELTA(_N_) (self->curr_stats._N_ += \
			mbox.stats._N_ - self->last_stats._N_)

	if (self->aq_link_status.mbps) {
		AQ_SDELTA(uprc);
		AQ_SDELTA(mprc);
		AQ_SDELTA(bprc);
		AQ_SDELTA(erpt);

		AQ_SDELTA(uptc);
		AQ_SDELTA(mptc);
		AQ_SDELTA(bptc);
		AQ_SDELTA(erpr);

		AQ_SDELTA(ubrc);
		AQ_SDELTA(ubtc);
		AQ_SDELTA(mbrc);
		AQ_SDELTA(mbtc);
		AQ_SDELTA(bbrc);
		AQ_SDELTA(bbtc);
		AQ_SDELTA(dpc);
	}
#undef AQ_SDELTA
	self->curr_stats.dma_pkt_rc = hw_atl_stats_rx_dma_good_pkt_counterlsw_get(self);
	self->curr_stats.dma_pkt_tc = hw_atl_stats_tx_dma_good_pkt_counterlsw_get(self);
	self->curr_stats.dma_oct_rc = hw_atl_stats_rx_dma_good_octet_counterlsw_get(self);
	self->curr_stats.dma_oct_tc = hw_atl_stats_tx_dma_good_octet_counterlsw_get(self);

	memcpy(&self->last_stats, &mbox.stats, sizeof(mbox.stats));

	return 0;
}

struct aq_stats_s *hw_atl_utils_get_hw_stats(struct aq_hw_s *self)
{
	return &self->curr_stats;
}

static const u32 hw_atl_utils_hw_mac_regs[] = {
	0x00005580U, 0x00005590U, 0x000055B0U, 0x000055B4U,
	0x000055C0U, 0x00005B00U, 0x00005B04U, 0x00005B08U,
	0x00005B0CU, 0x00005B10U, 0x00005B14U, 0x00005B18U,
	0x00005B1CU, 0x00005B20U, 0x00005B24U, 0x00005B28U,
	0x00005B2CU, 0x00005B30U, 0x00005B34U, 0x00005B38U,
	0x00005B3CU, 0x00005B40U, 0x00005B44U, 0x00005B48U,
	0x00005B4CU, 0x00005B50U, 0x00005B54U, 0x00005B58U,
	0x00005B5CU, 0x00005B60U, 0x00005B64U, 0x00005B68U,
	0x00005B6CU, 0x00005B70U, 0x00005B74U, 0x00005B78U,
	0x00005B7CU, 0x00007C00U, 0x00007C04U, 0x00007C08U,
	0x00007C0CU, 0x00007C10U, 0x00007C14U, 0x00007C18U,
	0x00007C1CU, 0x00007C20U, 0x00007C40U, 0x00007C44U,
	0x00007C48U, 0x00007C4CU, 0x00007C50U, 0x00007C54U,
	0x00007C58U, 0x00007C5CU, 0x00007C60U, 0x00007C80U,
	0x00007C84U, 0x00007C88U, 0x00007C8CU, 0x00007C90U,
	0x00007C94U, 0x00007C98U, 0x00007C9CU, 0x00007CA0U,
	0x00007CC0U, 0x00007CC4U, 0x00007CC8U, 0x00007CCCU,
	0x00007CD0U, 0x00007CD4U, 0x00007CD8U, 0x00007CDCU,
	0x00007CE0U, 0x00000300U, 0x00000304U, 0x00000308U,
	0x0000030cU, 0x00000310U, 0x00000314U, 0x00000318U,
	0x0000031cU, 0x00000360U, 0x00000364U, 0x00000368U,
	0x0000036cU, 0x00000370U, 0x00000374U, 0x00006900U,
};

int hw_atl_utils_hw_get_regs(struct aq_hw_s *self,
			     const struct aq_hw_caps_s *aq_hw_caps,
			     u32 *regs_buff)
{
	unsigned int i = 0U;

	for (i = 0; i < aq_hw_caps->mac_regs_count; i++)
		regs_buff[i] = aq_hw_read_reg(self,
					      hw_atl_utils_hw_mac_regs[i]);
	return 0;
}

int hw_atl_utils_get_fw_version(struct aq_hw_s *self, u32 *fw_version)
{
	*fw_version = aq_hw_read_reg(self, 0x18U);
	return 0;
}

const struct aq_fw_ops aq_fw_1x_ops = {
	.init = hw_atl_utils_mpi_create,
	.deinit = hw_atl_fw1x_deinit,
	.reset = NULL,
	.get_mac_permanent = hw_atl_utils_get_mac_permanent,
	.set_link_speed = hw_atl_utils_mpi_set_speed,
	.set_state = hw_atl_utils_mpi_set_state,
	.update_link_status = hw_atl_utils_mpi_get_link_status,
	.update_stats = hw_atl_utils_update_stats,
	.set_flow_control = NULL,
};