arch/arm/mach-socfpga/reset_manager_arria10.c - u-boot - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2016-2017 Intel Corporation
  */

 #include <asm/io.h>
 #include <asm/arch/fpga_manager.h>
 #include <asm/arch/misc.h>
 #include <asm/arch/reset_manager.h>
 #include <asm/arch/system_manager.h>
 #include <common.h>
 #include <errno.h>
 #include <fdtdec.h>
 #include <wait_bit.h>

 DECLARE_GLOBAL_DATA_PTR;

 static const struct socfpga_reset_manager *reset_manager_base =
 		(void *)SOCFPGA_RSTMGR_ADDRESS;
 static const struct socfpga_system_manager *sysmgr_regs =
 		(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;

 #define ECC_MASK (ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK | \
 	ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK | \
 	ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK | \
 	ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK | \
 	ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK | \
 	ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK)

 void socfpga_reset_uart(int assert)
 {
 	unsigned int com_port;

 	com_port = uart_com_port(gd->fdt_blob);

 	if (com_port == SOCFPGA_UART1_ADDRESS)
 		socfpga_per_reset(SOCFPGA_RESET(UART1), assert);
 	else if (com_port == SOCFPGA_UART0_ADDRESS)
 		socfpga_per_reset(SOCFPGA_RESET(UART0), assert);
 }

 static const u32 per0fpgamasks[] = {
 	ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK |
 	ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK |
 	ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK |
 	ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK,
 	0, /* i2c0 per1mod */
 	0, /* i2c1 per1mod */
 	0, /* i2c0_emac */
 	0, /* i2c1_emac */
 	0, /* i2c2_emac */
 	ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK |
 	ALT_RSTMGR_PER0MODRST_NAND_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK |
 	ALT_RSTMGR_PER0MODRST_QSPI_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK |
 	ALT_RSTMGR_PER0MODRST_SDMMC_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_SPIM0_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_SPIM1_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_SPIS0_SET_MSK,
 	ALT_RSTMGR_PER0MODRST_SPIS1_SET_MSK,
 	0, /* uart0 per1mod */
 	0, /* uart1 per1mod */
 };

 static const u32 per1fpgamasks[] = {
 	0, /* emac0 per0mod */
 	0, /* emac1 per0mod */
 	0, /* emac2 per0mod */
 	ALT_RSTMGR_PER1MODRST_I2C0_SET_MSK,
 	ALT_RSTMGR_PER1MODRST_I2C1_SET_MSK,
 	ALT_RSTMGR_PER1MODRST_I2C2_SET_MSK, /* i2c0_emac */
 	ALT_RSTMGR_PER1MODRST_I2C3_SET_MSK, /* i2c1_emac */
 	ALT_RSTMGR_PER1MODRST_I2C4_SET_MSK, /* i2c2_emac */
 	0, /* nand per0mod */
 	0, /* qspi per0mod */
 	0, /* sdmmc per0mod */
 	0, /* spim0 per0mod */
 	0, /* spim1 per0mod */
 	0, /* spis0 per0mod */
 	0, /* spis1 per0mod */
 	ALT_RSTMGR_PER1MODRST_UART0_SET_MSK,
 	ALT_RSTMGR_PER1MODRST_UART1_SET_MSK,
 };

 struct bridge_cfg {
 	int compat_id;
 	u32  mask_noc;
 	u32  mask_rstmgr;
 };

 static const struct bridge_cfg bridge_cfg_tbl[] = {
 	{
 		COMPAT_ALTERA_SOCFPGA_H2F_BRG,
 		ALT_SYSMGR_NOC_H2F_SET_MSK,
 		ALT_RSTMGR_BRGMODRST_H2F_SET_MSK,
 	},
 	{
 		COMPAT_ALTERA_SOCFPGA_LWH2F_BRG,
 		ALT_SYSMGR_NOC_LWH2F_SET_MSK,
 		ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK,
 	},
 	{
 		COMPAT_ALTERA_SOCFPGA_F2H_BRG,
 		ALT_SYSMGR_NOC_F2H_SET_MSK,
 		ALT_RSTMGR_BRGMODRST_F2H_SET_MSK,
 	},
 	{
 		COMPAT_ALTERA_SOCFPGA_F2SDR0,
 		ALT_SYSMGR_NOC_F2SDR0_SET_MSK,
 		ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK,
 	},
 	{
 		COMPAT_ALTERA_SOCFPGA_F2SDR1,
 		ALT_SYSMGR_NOC_F2SDR1_SET_MSK,
 		ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK,
 	},
 	{
 		COMPAT_ALTERA_SOCFPGA_F2SDR2,
 		ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
 		ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK,
 	},
 };

 /* Disable the watchdog (toggle reset to watchdog) */
 void socfpga_watchdog_disable(void)
 {
 	/* assert reset for watchdog */
 	setbits_le32(&reset_manager_base->per1modrst,
 		     ALT_RSTMGR_PER1MODRST_WD0_SET_MSK);
 }

 /* Release NOC ddr scheduler from reset */
 void socfpga_reset_deassert_noc_ddr_scheduler(void)
 {
 	clrbits_le32(&reset_manager_base->brgmodrst,
 		     ALT_RSTMGR_BRGMODRST_DDRSCH_SET_MSK);
 }

 /* Check whether Watchdog in reset state? */
 int socfpga_is_wdt_in_reset(void)
 {
 	u32 val;

 	val = readl(&reset_manager_base->per1modrst);
 	val &= ALT_RSTMGR_PER1MODRST_WD0_SET_MSK;

 	/* return 0x1 if watchdog in reset */
 	return val;
 }

 /* emacbase: base address of emac to enable/disable reset
  * state: 0 - disable reset, !0 - enable reset
  */
 void socfpga_emac_manage_reset(ulong emacbase, u32 state)
 {
 	ulong eccmask;
 	ulong emacmask;

 	switch (emacbase) {
 	case SOCFPGA_EMAC0_ADDRESS:
 		eccmask = ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK;
 		emacmask = ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK;
 		break;
 	case SOCFPGA_EMAC1_ADDRESS:
 		eccmask = ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK;
 		emacmask = ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK;
 		break;
 	case SOCFPGA_EMAC2_ADDRESS:
 		eccmask = ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK;
 		emacmask = ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK;
 		break;
 	default:
 		pr_err("emac base address unexpected! %lx", emacbase);
 		hang();
 		break;
 	}

 	if (state) {
 		/* Enable ECC OCP first */
 		setbits_le32(&reset_manager_base->per0modrst, eccmask);
 		setbits_le32(&reset_manager_base->per0modrst, emacmask);
 	} else {
 		/* Disable ECC OCP first */
 		clrbits_le32(&reset_manager_base->per0modrst, emacmask);
 		clrbits_le32(&reset_manager_base->per0modrst, eccmask);
 	}
 }

 static int get_bridge_init_val(const void *blob, int compat_id)
 {
 	int node;

 	node = fdtdec_next_compatible(blob, 0, compat_id);
 	if (node < 0)
 		return 0;

 	return fdtdec_get_uint(blob, node, "init-val", 0);
 }

 /* Enable bridges (hps2fpga, lwhps2fpga, fpga2hps, fpga2sdram) per handoff */
 int socfpga_reset_deassert_bridges_handoff(void)
 {
 	u32 mask_noc = 0, mask_rstmgr = 0;
 	int i;

 	for (i = 0; i < ARRAY_SIZE(bridge_cfg_tbl); i++) {
 		if (get_bridge_init_val(gd->fdt_blob,
 					bridge_cfg_tbl[i].compat_id)) {
 			mask_noc |= bridge_cfg_tbl[i].mask_noc;
 			mask_rstmgr |= bridge_cfg_tbl[i].mask_rstmgr;
 		}
 	}

 	/* clear idle request to all bridges */
 	setbits_le32(&sysmgr_regs->noc_idlereq_clr, mask_noc);

 	/* Release bridges from reset state per handoff value */
 	clrbits_le32(&reset_manager_base->brgmodrst, mask_rstmgr);

 	/* Poll until all idleack to 0, timeout at 1000ms */
 	return wait_for_bit_le32(&sysmgr_regs->noc_idleack, mask_noc,
 				 false, 1000, false);
 }

 void socfpga_reset_assert_fpga_connected_peripherals(void)
 {
 	u32 mask0 = 0;
 	u32 mask1 = 0;
 	u32 fpga_pinux_addr = SOCFPGA_PINMUX_FPGA_INTERFACE_ADDRESS;
 	int i;

 	for (i = 0; i < ARRAY_SIZE(per1fpgamasks); i++) {
 		if (readl(fpga_pinux_addr)) {
 			mask0 |= per0fpgamasks[i];
 			mask1 |= per1fpgamasks[i];
 		}
 		fpga_pinux_addr += sizeof(u32);
 	}

 	setbits_le32(&reset_manager_base->per0modrst, mask0 & ECC_MASK);
 	setbits_le32(&reset_manager_base->per1modrst, mask1);
 	setbits_le32(&reset_manager_base->per0modrst, mask0);
 }

 /* Release L4 OSC1 Watchdog Timer 0 from reset through reset manager */
 void socfpga_reset_deassert_osc1wd0(void)
 {
 	clrbits_le32(&reset_manager_base->per1modrst,
 		     ALT_RSTMGR_PER1MODRST_WD0_SET_MSK);
 }

 /*
  * Assert or de-assert SoCFPGA reset manager reset.
  */
 void socfpga_per_reset(u32 reset, int set)
 {
 	const u32 *reg;
 	u32 rstmgr_bank = RSTMGR_BANK(reset);

 	switch (rstmgr_bank) {
 	case 0:
 		reg = &reset_manager_base->mpumodrst;
 		break;
 	case 1:
 		reg = &reset_manager_base->per0modrst;
 		break;
 	case 2:
 		reg = &reset_manager_base->per1modrst;
 		break;
 	case 3:
 		reg = &reset_manager_base->brgmodrst;
 		break;
 	case 4:
 		reg = &reset_manager_base->sysmodrst;
 		break;

 	default:
 		return;
 	}

 	if (set)
 		setbits_le32(reg, 1 << RSTMGR_RESET(reset));
 	else
 		clrbits_le32(reg, 1 << RSTMGR_RESET(reset));
 }

 /*
  * Assert reset on every peripheral but L4WD0.
  * Watchdog must be kept intact to prevent glitches
  * and/or hangs.
  * For the Arria10, we disable all the peripherals except L4 watchdog0,
  * L4 Timer 0, and ECC.
  */
 void socfpga_per_reset_all(void)
 {
 	const u32 l4wd0 = (1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0)) |
 			  (1 << RSTMGR_RESET(SOCFPGA_RESET(L4SYSTIMER0))));
 	unsigned mask_ecc_ocp =
 		ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_USBECC0_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_USBECC1_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK |
 		ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK;

 	/* disable all components except ECC_OCP, L4 Timer0 and L4 WD0 */
 	writel(~l4wd0, &reset_manager_base->per1modrst);
 	setbits_le32(&reset_manager_base->per0modrst, ~mask_ecc_ocp);

 	/* Finally disable the ECC_OCP */
 	setbits_le32(&reset_manager_base->per0modrst, mask_ecc_ocp);
 }

 #if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
 int socfpga_bridges_reset(void)
 {
 	/* For SoCFPGA-VT, this is NOP. */
 	return 0;
 }
 #else
 int socfpga_bridges_reset(void)
 {
 	int ret;

 	/* Disable all the bridges (hps2fpga, lwhps2fpga, fpga2hps,
 	   fpga2sdram) */
 	/* set idle request to all bridges */
 	writel(ALT_SYSMGR_NOC_H2F_SET_MSK |
 		ALT_SYSMGR_NOC_LWH2F_SET_MSK |
 		ALT_SYSMGR_NOC_F2H_SET_MSK |
 		ALT_SYSMGR_NOC_F2SDR0_SET_MSK |
 		ALT_SYSMGR_NOC_F2SDR1_SET_MSK |
 		ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
 		&sysmgr_regs->noc_idlereq_set);

 	/* Enable the NOC timeout */
 	writel(ALT_SYSMGR_NOC_TMO_EN_SET_MSK, &sysmgr_regs->noc_timeout);

 	/* Poll until all idleack to 1 */
 	ret = wait_for_bit_le32(&sysmgr_regs->noc_idleack,
 				ALT_SYSMGR_NOC_H2F_SET_MSK |
 				ALT_SYSMGR_NOC_LWH2F_SET_MSK |
 				ALT_SYSMGR_NOC_F2H_SET_MSK |
 				ALT_SYSMGR_NOC_F2SDR0_SET_MSK |
 				ALT_SYSMGR_NOC_F2SDR1_SET_MSK |
 				ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
 				true, 10000, false);
 	if (ret)
 		return ret;

 	/* Poll until all idlestatus to 1 */
 	ret = wait_for_bit_le32(&sysmgr_regs->noc_idlestatus,
 				ALT_SYSMGR_NOC_H2F_SET_MSK |
 				ALT_SYSMGR_NOC_LWH2F_SET_MSK |
 				ALT_SYSMGR_NOC_F2H_SET_MSK |
 				ALT_SYSMGR_NOC_F2SDR0_SET_MSK |
 				ALT_SYSMGR_NOC_F2SDR1_SET_MSK |
 				ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
 				true, 10000, false);
 	if (ret)
 		return ret;

 	/* Put all bridges (except NOR DDR scheduler) into reset state */
 	setbits_le32(&reset_manager_base->brgmodrst,
 		     (ALT_RSTMGR_BRGMODRST_H2F_SET_MSK |
 		     ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK |
 		     ALT_RSTMGR_BRGMODRST_F2H_SET_MSK |
 		     ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK |
 		     ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK |
 		     ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK));

 	/* Disable NOC timeout */
 	writel(0, &sysmgr_regs->noc_timeout);

 	return 0;
 }
 #endif
	// SPDX-License-Identifier: GPL-2.0
	/*
	* Copyright (C) 2016-2017 Intel Corporation
	*/

	#include <asm/io.h>
	#include <asm/arch/fpga_manager.h>
	#include <asm/arch/misc.h>
	#include <asm/arch/reset_manager.h>
	#include <asm/arch/system_manager.h>
	#include <common.h>
	#include <errno.h>
	#include <fdtdec.h>
	#include <wait_bit.h>

	DECLARE_GLOBAL_DATA_PTR;

	static const struct socfpga_reset_manager *reset_manager_base =
	(void *)SOCFPGA_RSTMGR_ADDRESS;
	static const struct socfpga_system_manager *sysmgr_regs =
	(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;

	#define ECC_MASK (ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK \| \
	ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK \| \
	ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK \| \
	ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK \| \
	ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK \| \
	ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK)

	void socfpga_reset_uart(int assert)
	{
	unsigned int com_port;

	com_port = uart_com_port(gd->fdt_blob);

	if (com_port == SOCFPGA_UART1_ADDRESS)
	socfpga_per_reset(SOCFPGA_RESET(UART1), assert);
	else if (com_port == SOCFPGA_UART0_ADDRESS)
	socfpga_per_reset(SOCFPGA_RESET(UART0), assert);
	}

	static const u32 per0fpgamasks[] = {
	ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK,
	ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK,
	ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK,
	0, /* i2c0 per1mod */
	0, /* i2c1 per1mod */
	0, /* i2c0_emac */
	0, /* i2c1_emac */
	0, /* i2c2_emac */
	ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_NAND_SET_MSK,
	ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_QSPI_SET_MSK,
	ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_SDMMC_SET_MSK,
	ALT_RSTMGR_PER0MODRST_SPIM0_SET_MSK,
	ALT_RSTMGR_PER0MODRST_SPIM1_SET_MSK,
	ALT_RSTMGR_PER0MODRST_SPIS0_SET_MSK,
	ALT_RSTMGR_PER0MODRST_SPIS1_SET_MSK,
	0, /* uart0 per1mod */
	0, /* uart1 per1mod */
	};

	static const u32 per1fpgamasks[] = {
	0, /* emac0 per0mod */
	0, /* emac1 per0mod */
	0, /* emac2 per0mod */
	ALT_RSTMGR_PER1MODRST_I2C0_SET_MSK,
	ALT_RSTMGR_PER1MODRST_I2C1_SET_MSK,
	ALT_RSTMGR_PER1MODRST_I2C2_SET_MSK, /* i2c0_emac */
	ALT_RSTMGR_PER1MODRST_I2C3_SET_MSK, /* i2c1_emac */
	ALT_RSTMGR_PER1MODRST_I2C4_SET_MSK, /* i2c2_emac */
	0, /* nand per0mod */
	0, /* qspi per0mod */
	0, /* sdmmc per0mod */
	0, /* spim0 per0mod */
	0, /* spim1 per0mod */
	0, /* spis0 per0mod */
	0, /* spis1 per0mod */
	ALT_RSTMGR_PER1MODRST_UART0_SET_MSK,
	ALT_RSTMGR_PER1MODRST_UART1_SET_MSK,
	};

	struct bridge_cfg {
	int compat_id;
	u32 mask_noc;
	u32 mask_rstmgr;
	};

	static const struct bridge_cfg bridge_cfg_tbl[] = {
	{
	COMPAT_ALTERA_SOCFPGA_H2F_BRG,
	ALT_SYSMGR_NOC_H2F_SET_MSK,
	ALT_RSTMGR_BRGMODRST_H2F_SET_MSK,
	},
	{
	COMPAT_ALTERA_SOCFPGA_LWH2F_BRG,
	ALT_SYSMGR_NOC_LWH2F_SET_MSK,
	ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK,
	},
	{
	COMPAT_ALTERA_SOCFPGA_F2H_BRG,
	ALT_SYSMGR_NOC_F2H_SET_MSK,
	ALT_RSTMGR_BRGMODRST_F2H_SET_MSK,
	},
	{
	COMPAT_ALTERA_SOCFPGA_F2SDR0,
	ALT_SYSMGR_NOC_F2SDR0_SET_MSK,
	ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK,
	},
	{
	COMPAT_ALTERA_SOCFPGA_F2SDR1,
	ALT_SYSMGR_NOC_F2SDR1_SET_MSK,
	ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK,
	},
	{
	COMPAT_ALTERA_SOCFPGA_F2SDR2,
	ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
	ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK,
	},
	};

	/* Disable the watchdog (toggle reset to watchdog) */
	void socfpga_watchdog_disable(void)
	{
	/* assert reset for watchdog */
	setbits_le32(&reset_manager_base->per1modrst,
	ALT_RSTMGR_PER1MODRST_WD0_SET_MSK);
	}

	/* Release NOC ddr scheduler from reset */
	void socfpga_reset_deassert_noc_ddr_scheduler(void)
	{
	clrbits_le32(&reset_manager_base->brgmodrst,
	ALT_RSTMGR_BRGMODRST_DDRSCH_SET_MSK);
	}

	/* Check whether Watchdog in reset state? */
	int socfpga_is_wdt_in_reset(void)
	{
	u32 val;

	val = readl(&reset_manager_base->per1modrst);
	val &= ALT_RSTMGR_PER1MODRST_WD0_SET_MSK;

	/* return 0x1 if watchdog in reset */
	return val;
	}

	/* emacbase: base address of emac to enable/disable reset
	* state: 0 - disable reset, !0 - enable reset
	*/
	void socfpga_emac_manage_reset(ulong emacbase, u32 state)
	{
	ulong eccmask;
	ulong emacmask;

	switch (emacbase) {
	case SOCFPGA_EMAC0_ADDRESS:
	eccmask = ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK;
	emacmask = ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK;
	break;
	case SOCFPGA_EMAC1_ADDRESS:
	eccmask = ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK;
	emacmask = ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK;
	break;
	case SOCFPGA_EMAC2_ADDRESS:
	eccmask = ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK;
	emacmask = ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK;
	break;
	default:
	pr_err("emac base address unexpected! %lx", emacbase);
	hang();
	break;
	}

	if (state) {
	/* Enable ECC OCP first */
	setbits_le32(&reset_manager_base->per0modrst, eccmask);
	setbits_le32(&reset_manager_base->per0modrst, emacmask);
	} else {
	/* Disable ECC OCP first */
	clrbits_le32(&reset_manager_base->per0modrst, emacmask);
	clrbits_le32(&reset_manager_base->per0modrst, eccmask);
	}
	}

	static int get_bridge_init_val(const void *blob, int compat_id)
	{
	int node;

	node = fdtdec_next_compatible(blob, 0, compat_id);
	if (node < 0)
	return 0;

	return fdtdec_get_uint(blob, node, "init-val", 0);
	}

	/* Enable bridges (hps2fpga, lwhps2fpga, fpga2hps, fpga2sdram) per handoff */
	int socfpga_reset_deassert_bridges_handoff(void)
	{
	u32 mask_noc = 0, mask_rstmgr = 0;
	int i;

	for (i = 0; i < ARRAY_SIZE(bridge_cfg_tbl); i++) {
	if (get_bridge_init_val(gd->fdt_blob,
	bridge_cfg_tbl[i].compat_id)) {
	mask_noc \|= bridge_cfg_tbl[i].mask_noc;
	mask_rstmgr \|= bridge_cfg_tbl[i].mask_rstmgr;
	}
	}

	/* clear idle request to all bridges */
	setbits_le32(&sysmgr_regs->noc_idlereq_clr, mask_noc);

	/* Release bridges from reset state per handoff value */
	clrbits_le32(&reset_manager_base->brgmodrst, mask_rstmgr);

	/* Poll until all idleack to 0, timeout at 1000ms */
	return wait_for_bit_le32(&sysmgr_regs->noc_idleack, mask_noc,
	false, 1000, false);
	}

	void socfpga_reset_assert_fpga_connected_peripherals(void)
	{
	u32 mask0 = 0;
	u32 mask1 = 0;
	u32 fpga_pinux_addr = SOCFPGA_PINMUX_FPGA_INTERFACE_ADDRESS;
	int i;

	for (i = 0; i < ARRAY_SIZE(per1fpgamasks); i++) {
	if (readl(fpga_pinux_addr)) {
	mask0 \|= per0fpgamasks[i];
	mask1 \|= per1fpgamasks[i];
	}
	fpga_pinux_addr += sizeof(u32);
	}

	setbits_le32(&reset_manager_base->per0modrst, mask0 & ECC_MASK);
	setbits_le32(&reset_manager_base->per1modrst, mask1);
	setbits_le32(&reset_manager_base->per0modrst, mask0);
	}

	/* Release L4 OSC1 Watchdog Timer 0 from reset through reset manager */
	void socfpga_reset_deassert_osc1wd0(void)
	{
	clrbits_le32(&reset_manager_base->per1modrst,
	ALT_RSTMGR_PER1MODRST_WD0_SET_MSK);
	}

	/*
	* Assert or de-assert SoCFPGA reset manager reset.
	*/
	void socfpga_per_reset(u32 reset, int set)
	{
	const u32 *reg;
	u32 rstmgr_bank = RSTMGR_BANK(reset);

	switch (rstmgr_bank) {
	case 0:
	reg = &reset_manager_base->mpumodrst;
	break;
	case 1:
	reg = &reset_manager_base->per0modrst;
	break;
	case 2:
	reg = &reset_manager_base->per1modrst;
	break;
	case 3:
	reg = &reset_manager_base->brgmodrst;
	break;
	case 4:
	reg = &reset_manager_base->sysmodrst;
	break;

	default:
	return;
	}

	if (set)
	setbits_le32(reg, 1 << RSTMGR_RESET(reset));
	else
	clrbits_le32(reg, 1 << RSTMGR_RESET(reset));
	}

	/*
	* Assert reset on every peripheral but L4WD0.
	* Watchdog must be kept intact to prevent glitches
	* and/or hangs.
	* For the Arria10, we disable all the peripherals except L4 watchdog0,
	* L4 Timer 0, and ECC.
	*/
	void socfpga_per_reset_all(void)
	{
	const u32 l4wd0 = (1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0)) \|
	(1 << RSTMGR_RESET(SOCFPGA_RESET(L4SYSTIMER0))));
	unsigned mask_ecc_ocp =
	ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_USBECC0_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_USBECC1_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK \|
	ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK;

	/* disable all components except ECC_OCP, L4 Timer0 and L4 WD0 */
	writel(~l4wd0, &reset_manager_base->per1modrst);
	setbits_le32(&reset_manager_base->per0modrst, ~mask_ecc_ocp);

	/* Finally disable the ECC_OCP */
	setbits_le32(&reset_manager_base->per0modrst, mask_ecc_ocp);
	}

	#if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
	int socfpga_bridges_reset(void)
	{
	/* For SoCFPGA-VT, this is NOP. */
	return 0;
	}
	#else
	int socfpga_bridges_reset(void)
	{
	int ret;

	/* Disable all the bridges (hps2fpga, lwhps2fpga, fpga2hps,
	fpga2sdram) */
	/* set idle request to all bridges */
	writel(ALT_SYSMGR_NOC_H2F_SET_MSK \|
	ALT_SYSMGR_NOC_LWH2F_SET_MSK \|
	ALT_SYSMGR_NOC_F2H_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR0_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR1_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
	&sysmgr_regs->noc_idlereq_set);

	/* Enable the NOC timeout */
	writel(ALT_SYSMGR_NOC_TMO_EN_SET_MSK, &sysmgr_regs->noc_timeout);

	/* Poll until all idleack to 1 */
	ret = wait_for_bit_le32(&sysmgr_regs->noc_idleack,
	ALT_SYSMGR_NOC_H2F_SET_MSK \|
	ALT_SYSMGR_NOC_LWH2F_SET_MSK \|
	ALT_SYSMGR_NOC_F2H_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR0_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR1_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
	true, 10000, false);
	if (ret)
	return ret;

	/* Poll until all idlestatus to 1 */
	ret = wait_for_bit_le32(&sysmgr_regs->noc_idlestatus,
	ALT_SYSMGR_NOC_H2F_SET_MSK \|
	ALT_SYSMGR_NOC_LWH2F_SET_MSK \|
	ALT_SYSMGR_NOC_F2H_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR0_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR1_SET_MSK \|
	ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
	true, 10000, false);
	if (ret)
	return ret;

	/* Put all bridges (except NOR DDR scheduler) into reset state */
	setbits_le32(&reset_manager_base->brgmodrst,
	(ALT_RSTMGR_BRGMODRST_H2F_SET_MSK \|
	ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK \|
	ALT_RSTMGR_BRGMODRST_F2H_SET_MSK \|
	ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK \|
	ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK \|
	ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK));

	/* Disable NOC timeout */
	writel(0, &sysmgr_regs->noc_timeout);

	return 0;
	}
	#endif