plat: marvell: Add common ARMADA platform components

Add common Marvell ARMADA platform components.
This patch also includes common components for Marvell
ARMADA 8K platforms.

Change-Id: I42192fdc6525a42e46b3ac2ad63c83db9bcbfeaf
Signed-off-by: Hanna Hawa <hannah@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>

plat/marvell/a8k/common/mss/mss_bl2_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <a8k_common.h>
+#include <bl_common.h>
+#include <ccu.h>
+#include <cp110_setup.h>
+#include <debug.h>
+#include <marvell_plat_priv.h> /* timer functionality */
+#include <mmio.h>
+#include <platform_def.h>
+
+#include "mss_scp_bootloader.h"
+
+/* IO windows configuration */
+#define IOW_GCR_OFFSET		(0x70)
+
+/* MSS windows configuration */
+#define MSS_AEBR(base)			(base + 0x160)
+#define MSS_AIBR(base)			(base + 0x164)
+#define MSS_AEBR_MASK			0xFFF
+#define MSS_AIBR_MASK			0xFFF
+
+#define MSS_EXTERNAL_SPACE		0x50000000
+#define MSS_EXTERNAL_ACCESS_BIT		28
+#define MSS_EXTERNAL_ADDR_MASK		0xfffffff
+#define MSS_INTERNAL_ACCESS_BIT		28
+
+struct addr_map_win ccu_mem_map[] = {
+	{MVEBU_CP_REGS_BASE(0), 0x4000000, IO_0_TID}
+};
+
+/* Since the scp_bl2 image can contain firmware for cp1 and cp0 coprocessors,
+ * the access to cp0 and cp1 need to be provided. More precisely it is
+ * required to:
+ *  - get the information about device id which is stored in CP0 registers
+ *    (to distinguish between cases where we have cp0 and cp1 or standalone cp0)
+ *  - get the access to cp which is needed for loading fw for cp0/cp1
+ *    coprocessors
+ * This function configures ccu windows accordingly.
+ *
+ * Note: there is no need to restore previous ccu configuration, since in next
+ * phase (BL31) the init_ccu will be called (via apn806_init/
+ * bl31_plat_arch_setu) and therefore the ccu configuration will be overwritten.
+ */
+static int bl2_plat_mmap_init(void)
+{
+	int cfg_num, win_id, cfg_idx;
+
+	cfg_num =  ARRAY_SIZE(ccu_mem_map);
+
+	/* CCU window-0 should not be counted - it's already used */
+	if (cfg_num > (MVEBU_CCU_MAX_WINS - 1)) {
+		ERROR("BL2: %s: trying to open too many windows\n", __func__);
+		return -1;
+	}
+
+	/* Enable required CCU windows
+	 * Do not touch CCU window 0,
+	 * it's used for the internal registers access
+	 */
+	for (cfg_idx = 0, win_id = 1; cfg_idx < cfg_num; cfg_idx++, win_id++) {
+		/* Enable required CCU windows */
+		ccu_win_check(&ccu_mem_map[cfg_idx]);
+		ccu_enable_win(MVEBU_AP0, &ccu_mem_map[cfg_idx], win_id);
+	}
+
+	/* Set the default target id to PIDI */
+	mmio_write_32(MVEBU_IO_WIN_BASE(MVEBU_AP0) + IOW_GCR_OFFSET, PIDI_TID);
+
+	return 0;
+}
+
+/*****************************************************************************
+ * Transfer SCP_BL2 from Trusted RAM using the SCP Download protocol.
+ * Return 0 on success, -1 otherwise.
+ *****************************************************************************
+ */
+int bl2_plat_handle_scp_bl2(image_info_t *scp_bl2_image_info)
+{
+	int ret;
+
+	INFO("BL2: Initiating SCP_BL2 transfer to SCP\n");
+	printf("BL2: Initiating SCP_BL2 transfer to SCP\n");
+
+	/* initialize time (for delay functionality) */
+	plat_delay_timer_init();
+
+	ret = bl2_plat_mmap_init();
+	if (ret != 0)
+		return ret;
+
+	ret = scp_bootloader_transfer((void *)scp_bl2_image_info->image_base,
+		scp_bl2_image_info->image_size);
+
+	if (ret == 0)
+		INFO("BL2: SCP_BL2 transferred to SCP\n");
+	else
+		ERROR("BL2: SCP_BL2 transfer failure\n");
+
+	return ret;
+}
+
+uintptr_t bl2_plat_get_cp_mss_regs(int ap_idx, int cp_idx)
+{
+	return MVEBU_CP_REGS_BASE(cp_idx) + 0x280000;
+}
+
+uintptr_t bl2_plat_get_ap_mss_regs(int ap_idx)
+{
+	return MVEBU_REGS_BASE + 0x580000;
+}
+
+uint32_t bl2_plat_get_cp_count(int ap_idx)
+{
+	uint32_t revision = cp110_device_id_get(MVEBU_CP_REGS_BASE(0));
+	/* A8040: two CPs.
+	 * A7040: one CP.
+	 */
+	if (revision == MVEBU_80X0_DEV_ID ||
+	    revision == MVEBU_80X0_CP115_DEV_ID)
+		return 2;
+	else
+		return 1;
+}
+
+uint32_t bl2_plat_get_ap_count(void)
+{
+	/* A8040 and A7040 have only one AP */
+	return 1;
+}
+
+void bl2_plat_configure_mss_windows(uintptr_t mss_regs)
+{
+	/* set AXI External and Internal Address Bus extension */
+	mmio_write_32(MSS_AEBR(mss_regs),
+		      ((0x0 >> MSS_EXTERNAL_ACCESS_BIT) & MSS_AEBR_MASK));
+	mmio_write_32(MSS_AIBR(mss_regs),
+		      ((mss_regs >> MSS_INTERNAL_ACCESS_BIT) & MSS_AIBR_MASK));
+}

plat/marvell/a8k/common/mss/mss_pm_ipc.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <debug.h>
+#include <mmio.h>
+#include <psci.h>
+#include <string.h>
+
+#include <mss_pm_ipc.h>
+
+/*
+ * SISR is 32 bit interrupt register representing 32 interrupts
+ *
+ * +======+=============+=============+
+ * + Bits + 31          + 30 - 00     +
+ * +======+=============+=============+
+ * + Desc + MSS Msg Int + Reserved    +
+ * +======+=============+=============+
+ */
+#define MSS_SISR		(MVEBU_REGS_BASE + 0x5800D0)
+#define MSS_SISTR		(MVEBU_REGS_BASE + 0x5800D8)
+
+#define MSS_MSG_INT_MASK	(0x80000000)
+#define MSS_TIMER_BASE		(MVEBU_REGS_BASE_MASK + 0x580110)
+#define MSS_TRIGGER_TIMEOUT	(1000)
+
+/*****************************************************************************
+ * mss_pm_ipc_msg_send
+ *
+ * DESCRIPTION: create and transmit IPC message
+ *****************************************************************************
+ */
+int mss_pm_ipc_msg_send(unsigned int channel_id, unsigned int msg_id,
+			const psci_power_state_t *target_state)
+{
+	/* Transmit IPC message */
+#ifndef DISABLE_CLUSTER_LEVEL
+	mv_pm_ipc_msg_tx(channel_id, msg_id,
+			 (unsigned int)target_state->pwr_domain_state[
+					MPIDR_AFFLVL1]);
+#else
+	mv_pm_ipc_msg_tx(channel_id, msg_id, 0);
+#endif
+
+	return 0;
+}
+
+/*****************************************************************************
+ * mss_pm_ipc_msg_trigger
+ *
+ * DESCRIPTION: Trigger IPC message interrupt to MSS
+ *****************************************************************************
+ */
+int mss_pm_ipc_msg_trigger(void)
+{
+	unsigned int timeout;
+	unsigned int t_end;
+	unsigned int t_start = mmio_read_32(MSS_TIMER_BASE);
+
+	mmio_write_32(MSS_SISR, MSS_MSG_INT_MASK);
+
+	do {
+		/* wait while SCP process incoming interrupt */
+		if (mmio_read_32(MSS_SISTR) != MSS_MSG_INT_MASK)
+			break;
+
+		/* check timeout */
+		t_end = mmio_read_32(MSS_TIMER_BASE);
+
+		timeout = ((t_start > t_end) ?
+			   (t_start - t_end) : (t_end - t_start));
+		if (timeout > MSS_TRIGGER_TIMEOUT) {
+			ERROR("PM MSG Trigger Timeout\n");
+			break;
+		}
+
+	} while (1);
+
+	return 0;
+}

plat/marvell/a8k/common/mss/mss_pm_ipc.h

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#ifndef __MSS_PM_IPC_H
+#define __MSS_PM_IPC_H
+
+#include <mss_ipc_drv.h>
+
+/* Currently MSS does not support Cluster level Power Down */
+#define DISABLE_CLUSTER_LEVEL
+
+
+/*****************************************************************************
+ * mss_pm_ipc_msg_send
+ *
+ * DESCRIPTION: create and transmit IPC message
+ *****************************************************************************
+ */
+int mss_pm_ipc_msg_send(unsigned int channel_id, unsigned int msg_id,
+			const psci_power_state_t *target_state);
+
+/*****************************************************************************
+ * mss_pm_ipc_msg_trigger
+ *
+ * DESCRIPTION: Trigger IPC message interrupt to MSS
+ *****************************************************************************
+ */
+int mss_pm_ipc_msg_trigger(void);
+
+
+#endif /* __MSS_PM_IPC_H */

plat/marvell/a8k/common/plat_bl1_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <mmio.h>
+#include <plat_marvell.h>
+
+void marvell_bl1_setup_mpps(void)
+{
+	/* Enable UART MPPs.
+	 ** In a normal system, this is done by Bootrom.
+	 */
+	mmio_write_32(MVEBU_AP_MPP_REGS(1), 0x3000);
+	mmio_write_32(MVEBU_AP_MPP_REGS(2), 0x3000);
+}

plat/marvell/a8k/common/plat_bl31_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <a8k_common.h>
+#include <ap_setup.h>
+#include <cp110_setup.h>
+#include <debug.h>
+#include <marvell_plat_priv.h>
+#include <marvell_pm.h>
+#include <mmio.h>
+#include <mci.h>
+#include <plat_marvell.h>
+
+#include <mss_ipc_drv.h>
+#include <mss_mem.h>
+
+/* In Armada-8k family AP806/AP807, CP0 connected to PIDI
+ * and CP1 connected to IHB via MCI #0
+ */
+#define MVEBU_MCI0		0
+
+static _Bool pm_fw_running;
+
+/* Set a weak stub for platforms that don't need to configure GPIO */
+#pragma weak marvell_gpio_config
+int marvell_gpio_config(void)
+{
+	return 0;
+}
+
+static void marvell_bl31_mpp_init(int cp)
+{
+	uint32_t reg;
+
+	/* need to do for CP#0 only */
+	if (cp)
+		return;
+
+
+	/*
+	 * Enable CP0 I2C MPPs (MPP: 37-38)
+	 * U-Boot rely on proper MPP settings for I2C EEPROM usage
+	 * (only for CP0)
+	 */
+	reg = mmio_read_32(MVEBU_CP_MPP_REGS(0, 4));
+	mmio_write_32(MVEBU_CP_MPP_REGS(0, 4), reg | 0x2200000);
+}
+
+void marvell_bl31_mss_init(void)
+{
+	struct mss_pm_ctrl_block *mss_pm_crtl =
+			(struct mss_pm_ctrl_block *)MSS_SRAM_PM_CONTROL_BASE;
+
+	/* Check that the image was loaded successfully */
+	if (mss_pm_crtl->handshake != HOST_ACKNOWLEDGMENT) {
+		NOTICE("MSS PM is not supported in this build\n");
+		return;
+	}
+
+	/* If we got here it means that the PM firmware is running */
+	pm_fw_running = 1;
+
+	INFO("MSS IPC init\n");
+
+	if (mss_pm_crtl->ipc_state == IPC_INITIALIZED)
+		mv_pm_ipc_init(mss_pm_crtl->ipc_base_address | MVEBU_REGS_BASE);
+}
+
+_Bool is_pm_fw_running(void)
+{
+	return pm_fw_running;
+}
+
+/* This function overruns the same function in marvell_bl31_setup.c */
+void bl31_plat_arch_setup(void)
+{
+	int cp;
+	uintptr_t *mailbox = (void *)PLAT_MARVELL_MAILBOX_BASE;
+
+	/* initialize the timer for mdelay/udelay functionality */
+	plat_delay_timer_init();
+
+	/* configure apn806 */
+	ap_init();
+
+	/* In marvell_bl31_plat_arch_setup, el3 mmu is configured.
+	 * el3 mmu configuration MUST be called after apn806_init, if not,
+	 * this will cause an hang in init_io_win
+	 * (after setting the IO windows GCR values).
+	 */
+	if (mailbox[MBOX_IDX_MAGIC] != MVEBU_MAILBOX_MAGIC_NUM ||
+	    mailbox[MBOX_IDX_SUSPEND_MAGIC] != MVEBU_MAILBOX_SUSPEND_STATE)
+		marvell_bl31_plat_arch_setup();
+
+	for (cp = 0; cp < CP_COUNT; cp++) {
+	/* configure cp110 for CP0*/
+		if (cp == 1)
+			mci_initialize(MVEBU_MCI0);
+
+	/* initialize MCI & CP1 */
+		cp110_init(MVEBU_CP_REGS_BASE(cp),
+			   STREAM_ID_BASE + (cp * MAX_STREAM_ID_PER_CP));
+
+	/* Should be called only after setting IOB windows */
+		marvell_bl31_mpp_init(cp);
+	}
+
+	/* initialize IPC between MSS and ATF */
+	if (mailbox[MBOX_IDX_MAGIC] != MVEBU_MAILBOX_MAGIC_NUM ||
+	    mailbox[MBOX_IDX_SUSPEND_MAGIC] != MVEBU_MAILBOX_SUSPEND_STATE)
+		marvell_bl31_mss_init();
+
+	/* Configure GPIO */
+	marvell_gpio_config();
+}

plat/marvell/a8k/common/plat_ble_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <a8k_common.h>
+#include <ap_setup.h>
+#include <aro.h>
+#include <ccu.h>
+#include <cp110_setup.h>
+#include <debug.h>
+#include <io_win.h>
+#include <mv_ddr_if.h>
+#include <mvebu_def.h>
+#include <plat_marvell.h>
+
+/* Register for skip image use */
+#define SCRATCH_PAD_REG2		0xF06F00A8
+#define SCRATCH_PAD_SKIP_VAL		0x01
+#define NUM_OF_GPIO_PER_REG 32
+
+#define MMAP_SAVE_AND_CONFIG	0
+#define MMAP_RESTORE_SAVED	1
+
+/* SAR clock settings */
+#define MVEBU_AP_GEN_MGMT_BASE		(MVEBU_RFU_BASE + 0x8000)
+#define MVEBU_AP_SAR_REG_BASE(r)	(MVEBU_AP_GEN_MGMT_BASE + 0x200 +\
+								((r) << 2))
+
+#define SAR_CLOCK_FREQ_MODE_OFFSET	(0)
+#define SAR_CLOCK_FREQ_MODE_MASK	(0x1f << SAR_CLOCK_FREQ_MODE_OFFSET)
+#define SAR_PIDI_LOW_SPEED_OFFSET	(20)
+#define SAR_PIDI_LOW_SPEED_MASK		(1 << SAR_PIDI_LOW_SPEED_OFFSET)
+#define SAR_PIDI_LOW_SPEED_SHIFT	(15)
+#define SAR_PIDI_LOW_SPEED_SET		(1 << SAR_PIDI_LOW_SPEED_SHIFT)
+
+#define FREQ_MODE_AP_SAR_REG_NUM	(0)
+#define SAR_CLOCK_FREQ_MODE(v)		(((v) & SAR_CLOCK_FREQ_MODE_MASK) >> \
+					SAR_CLOCK_FREQ_MODE_OFFSET)
+
+#define AVS_EN_CTRL_REG			(MVEBU_AP_GEN_MGMT_BASE + 0x130)
+#define AVS_ENABLE_OFFSET		(0)
+#define AVS_SOFT_RESET_OFFSET		(2)
+#define AVS_LOW_VDD_LIMIT_OFFSET	(4)
+#define AVS_HIGH_VDD_LIMIT_OFFSET	(12)
+#define AVS_TARGET_DELTA_OFFSET		(21)
+#define AVS_VDD_LOW_LIMIT_MASK	        (0xFF << AVS_LOW_VDD_LIMIT_OFFSET)
+#define AVS_VDD_HIGH_LIMIT_MASK	        (0xFF << AVS_HIGH_VDD_LIMIT_OFFSET)
+/* VDD limit is 0.9V for A70x0 @ CPU frequency < 1600MHz */
+#define AVS_A7K_LOW_CLK_VALUE		((0x80 << AVS_TARGET_DELTA_OFFSET) | \
+					 (0x1A << AVS_HIGH_VDD_LIMIT_OFFSET) | \
+					 (0x1A << AVS_LOW_VDD_LIMIT_OFFSET) | \
+					 (0x1 << AVS_SOFT_RESET_OFFSET) | \
+					 (0x1 << AVS_ENABLE_OFFSET))
+/* VDD limit is 1.0V for all A80x0 devices */
+#define AVS_A8K_CLK_VALUE		((0x80 << AVS_TARGET_DELTA_OFFSET) | \
+					 (0x24 << AVS_HIGH_VDD_LIMIT_OFFSET) | \
+					 (0x24 << AVS_LOW_VDD_LIMIT_OFFSET) | \
+					 (0x1 << AVS_SOFT_RESET_OFFSET) | \
+					 (0x1 << AVS_ENABLE_OFFSET))
+
+#define AVS_A3900_CLK_VALUE		((0x80 << 24) | \
+					 (0x2c2 << 13) | \
+					 (0x2c2 << 3) | \
+					 (0x1 << AVS_SOFT_RESET_OFFSET) | \
+					 (0x1 << AVS_ENABLE_OFFSET))
+
+#define MVEBU_AP_EFUSE_SRV_CTRL_REG	(MVEBU_AP_GEN_MGMT_BASE + 0x8)
+#define EFUSE_SRV_CTRL_LD_SELECT_OFFS	6
+#define EFUSE_SRV_CTRL_LD_SEL_USER_MASK	(1 << EFUSE_SRV_CTRL_LD_SELECT_OFFS)
+
+/* Notify bootloader on DRAM setup */
+#define AP807_CPU_ARO_0_CTRL_0		(MVEBU_RFU_BASE + 0x82A8)
+#define AP807_CPU_ARO_1_CTRL_0		(MVEBU_RFU_BASE + 0x8D00)
+
+/* 0 - ARO clock is enabled, 1 - ARO clock is disabled */
+#define AP807_CPU_ARO_CLK_EN_OFFSET	0
+#define AP807_CPU_ARO_CLK_EN_MASK	(0x1 << AP807_CPU_ARO_CLK_EN_OFFSET)
+
+/* 0 - ARO is the clock source, 1 - PLL is the clock source */
+#define AP807_CPU_ARO_SEL_PLL_OFFSET	5
+#define AP807_CPU_ARO_SEL_PLL_MASK	(0x1 << AP807_CPU_ARO_SEL_PLL_OFFSET)
+
+/*
+ * - AVS work points in the LD0 eFuse:
+ *	SVC1 work point:     LD0[88:81]
+ *	SVC2 work point:     LD0[96:89]
+ *	SVC3 work point:     LD0[104:97]
+ *	SVC4 work point:     LD0[112:105]
+ * - Identification information in the LD-0 eFuse:
+ *	DRO:           LD0[74:65] - Not used by the SW
+ *	Revision:      LD0[78:75] - Not used by the SW
+ *	Bin:           LD0[80:79] - Not used by the SW
+ *	SW Revision:   LD0[115:113]
+ *	Cluster 1 PWR: LD0[193] - if set to 1, power down CPU Cluster-1
+ *				  resulting in 2 CPUs active only (7020)
+ */
+#define MVEBU_AP_LD_EFUSE_BASE		(MVEBU_AP_GEN_MGMT_BASE + 0xF00)
+/* Bits [94:63] - 32 data bits total */
+#define MVEBU_AP_LD0_94_63_EFUSE_OFFS	(MVEBU_AP_LD_EFUSE_BASE + 0x8)
+/* Bits [125:95] - 31 data bits total, 32nd bit is parity for bits [125:63] */
+#define MVEBU_AP_LD0_125_95_EFUSE_OFFS	(MVEBU_AP_LD_EFUSE_BASE + 0xC)
+/* Bits [220:189] - 32 data bits total */
+#define MVEBU_AP_LD0_220_189_EFUSE_OFFS	(MVEBU_AP_LD_EFUSE_BASE + 0x18)
+/* Offsets for the above 2 fields combined into single 64-bit value [125:63] */
+#define EFUSE_AP_LD0_DRO_OFFS		2		/* LD0[74:65] */
+#define EFUSE_AP_LD0_DRO_MASK		0x3FF
+#define EFUSE_AP_LD0_REVID_OFFS		12		/* LD0[78:75] */
+#define EFUSE_AP_LD0_REVID_MASK		0xF
+#define EFUSE_AP_LD0_BIN_OFFS		16		/* LD0[80:79] */
+#define EFUSE_AP_LD0_BIN_MASK		0x3
+#define EFUSE_AP_LD0_SWREV_OFFS		50		/* LD0[115:113] */
+#define EFUSE_AP_LD0_SWREV_MASK		0x7
+
+#define EFUSE_AP_LD0_SVC1_OFFS		18		/* LD0[88:81] */
+#define EFUSE_AP_LD0_SVC2_OFFS		26		/* LD0[96:89] */
+#define EFUSE_AP_LD0_SVC3_OFFS		34		/* LD0[104:97] */
+#define EFUSE_AP_LD0_SVC4_OFFS		42		/* LD0[112:105] */
+#define EFUSE_AP_LD0_WP_MASK		0xFF
+
+#define EFUSE_AP_LD0_CLUSTER_DOWN_OFFS	4
+
+/* Return the AP revision of the chip */
+static unsigned int ble_get_ap_type(void)
+{
+	unsigned int chip_rev_id;
+
+	chip_rev_id = mmio_read_32(MVEBU_CSS_GWD_CTRL_IIDR2_REG);
+	chip_rev_id = ((chip_rev_id & GWD_IIDR2_CHIP_ID_MASK) >>
+			GWD_IIDR2_CHIP_ID_OFFSET);
+
+	return chip_rev_id;
+}
+
+/******************************************************************************
+ * The routine allows to save the CCU and IO windows configuration during DRAM
+ * setup and restore them afterwards before exiting the BLE stage.
+ * Such window configuration is required since not all default settings coming
+ * from the HW and the BootROM allow access to peripherals connected to
+ * all available CPn components.
+ * For instance, when the boot device is located on CP0, the IO window to CP1
+ * is not opened automatically by the HW and if the DRAM SPD is located on CP1
+ * i2c channel, it cannot be read at BLE stage.
+ * Therefore the DRAM init procedure have to provide access to all available
+ * CPn peripherals during the BLE stage by setting the CCU IO window to all
+ * CPnph addresses and by enabling the IO windows accordingly.
+ * Additionally this function configures the CCU GCR to DRAM, which allows
+ * usage or more than 4GB DRAM as it configured by the default CCU DRAM window.
+ *
+ * IN:
+ *	MMAP_SAVE_AND_CONFIG	- save the existing configuration and update it
+ *	MMAP_RESTORE_SAVED	- restore saved configuration
+ * OUT:
+ *	NONE
+ ****************************************************************************
+ */
+static void ble_plat_mmap_config(int restore)
+{
+	if (restore == MMAP_RESTORE_SAVED) {
+		/* Restore all orig. settings that were modified by BLE stage */
+		ccu_restore_win_all(MVEBU_AP0);
+		/* Restore CCU */
+		iow_restore_win_all(MVEBU_AP0);
+		return;
+	}
+
+	/* Store original values */
+	ccu_save_win_all(MVEBU_AP0);
+	/* Save CCU */
+	iow_save_win_all(MVEBU_AP0);
+
+	init_ccu(MVEBU_AP0);
+	/* The configuration saved, now all the changes can be done */
+	init_io_win(MVEBU_AP0);
+}
+
+/****************************************************************************
+ * Setup Adaptive Voltage Switching - this is required for some platforms
+ ****************************************************************************
+ */
+static void ble_plat_avs_config(void)
+{
+	uint32_t reg_val, device_id;
+
+	/* Check which SoC is running and act accordingly */
+	if (ble_get_ap_type() == CHIP_ID_AP807) {
+		VERBOSE("AVS: Setting AP807 AVS CTRL to 0x%x\n",
+			AVS_A3900_CLK_VALUE);
+		mmio_write_32(AVS_EN_CTRL_REG, AVS_A3900_CLK_VALUE);
+		return;
+	}
+
+	/* Check which SoC is running and act accordingly */
+	device_id = cp110_device_id_get(MVEBU_CP_REGS_BASE(0));
+	switch (device_id) {
+	case MVEBU_80X0_DEV_ID:
+	case MVEBU_80X0_CP115_DEV_ID:
+		/* Set the new AVS value - fix the default one on A80x0 */
+		mmio_write_32(AVS_EN_CTRL_REG, AVS_A8K_CLK_VALUE);
+		break;
+	case MVEBU_70X0_DEV_ID:
+	case MVEBU_70X0_CP115_DEV_ID:
+		/* Only fix AVS for CPU clocks lower than 1600MHz on A70x0 */
+		reg_val = mmio_read_32(MVEBU_AP_SAR_REG_BASE(
+						FREQ_MODE_AP_SAR_REG_NUM));
+		reg_val &= SAR_CLOCK_FREQ_MODE_MASK;
+		reg_val >>= SAR_CLOCK_FREQ_MODE_OFFSET;
+		if ((reg_val > CPU_1600_DDR_900_RCLK_900_2) &&
+		    (reg_val < CPU_DDR_RCLK_INVALID))
+			mmio_write_32(AVS_EN_CTRL_REG, AVS_A7K_LOW_CLK_VALUE);
+		break;
+	default:
+		ERROR("Unsupported Device ID 0x%x\n", device_id);
+	}
+}
+
+/****************************************************************************
+ * SVC flow - v0.10
+ * The feature is intended to configure AVS value according to eFuse values
+ * that are burned individually for each SoC during the test process.
+ * Primary AVS value is stored in HD efuse and processed on power on
+ * by the HW engine
+ * Secondary AVS value is located in LD efuse and contains 4 work points for
+ * various CPU frequencies.
+ * The Secondary AVS value is only taken into account if the SW Revision stored
+ * in the efuse is greater than 0 and the CPU is running in a certain speed.
+ ****************************************************************************
+ */
+static void ble_plat_svc_config(void)
+{
+	uint32_t reg_val, avs_workpoint, freq_pidi_mode;
+	uint64_t efuse;
+	uint32_t device_id, single_cluster;
+	uint8_t  svc[4], perr[4], i, sw_ver;
+
+	/* Due to a bug in A3900 device_id skip SVC config
+	 * TODO: add SVC config once it is decided for a3900
+	 */
+	if (ble_get_ap_type() == CHIP_ID_AP807) {
+		NOTICE("SVC: SVC is not supported on AP807\n");
+		ble_plat_avs_config();
+		return;
+	}
+
+	/* Set access to LD0 */
+	reg_val = mmio_read_32(MVEBU_AP_EFUSE_SRV_CTRL_REG);
+	reg_val &= ~EFUSE_SRV_CTRL_LD_SELECT_OFFS;
+	mmio_write_32(MVEBU_AP_EFUSE_SRV_CTRL_REG, reg_val);
+
+	/* Obtain the value of LD0[125:63] */
+	efuse = mmio_read_32(MVEBU_AP_LD0_125_95_EFUSE_OFFS);
+	efuse <<= 32;
+	efuse |= mmio_read_32(MVEBU_AP_LD0_94_63_EFUSE_OFFS);
+
+	/* SW Revision:
+	 * Starting from SW revision 1 the SVC flow is supported.
+	 * SW version 0 (efuse not programmed) should follow the
+	 * regular AVS update flow.
+	 */
+	sw_ver = (efuse >> EFUSE_AP_LD0_SWREV_OFFS) & EFUSE_AP_LD0_SWREV_MASK;
+	if (sw_ver < 1) {
+		NOTICE("SVC: SW Revision 0x%x. SVC is not supported\n", sw_ver);
+		ble_plat_avs_config();
+		return;
+	}
+
+	/* Frequency mode from SAR */
+	freq_pidi_mode = SAR_CLOCK_FREQ_MODE(
+				mmio_read_32(
+					MVEBU_AP_SAR_REG_BASE(
+						FREQ_MODE_AP_SAR_REG_NUM)));
+
+	/* Decode all SVC work points */
+	svc[0] = (efuse >> EFUSE_AP_LD0_SVC1_OFFS) & EFUSE_AP_LD0_WP_MASK;
+	svc[1] = (efuse >> EFUSE_AP_LD0_SVC2_OFFS) & EFUSE_AP_LD0_WP_MASK;
+	svc[2] = (efuse >> EFUSE_AP_LD0_SVC3_OFFS) & EFUSE_AP_LD0_WP_MASK;
+	svc[3] = (efuse >> EFUSE_AP_LD0_SVC4_OFFS) & EFUSE_AP_LD0_WP_MASK;
+	INFO("SVC: Efuse WP: [0]=0x%x, [1]=0x%x, [2]=0x%x, [3]=0x%x\n",
+		svc[0], svc[1], svc[2], svc[3]);
+
+	/* Validate parity of SVC workpoint values */
+	for (i = 0; i < 4; i++) {
+		uint8_t parity, bit;
+
+		perr[i] = 0;
+
+		for (bit = 1, parity = svc[i] & 1; bit < 7; bit++)
+			parity ^= (svc[i] >> bit) & 1;
+
+		/* Starting from SW version 2, the parity check is mandatory */
+		if ((sw_ver > 1) && (parity != ((svc[i] >> 7) & 1)))
+			perr[i] = 1; /* register the error */
+	}
+
+	single_cluster = mmio_read_32(MVEBU_AP_LD0_220_189_EFUSE_OFFS);
+	single_cluster = (single_cluster >> EFUSE_AP_LD0_CLUSTER_DOWN_OFFS) & 1;
+
+	device_id = cp110_device_id_get(MVEBU_CP_REGS_BASE(0));
+	if (device_id == MVEBU_80X0_DEV_ID ||
+	    device_id == MVEBU_80X0_CP115_DEV_ID) {
+		/* A8040/A8020 */
+		NOTICE("SVC: DEV ID: %s, FREQ Mode: 0x%x\n",
+			single_cluster == 0 ? "8040" : "8020", freq_pidi_mode);
+		switch (freq_pidi_mode) {
+		case CPU_1800_DDR_1200_RCLK_1200:
+		case CPU_1800_DDR_1050_RCLK_1050:
+			if (perr[1])
+				goto perror;
+			avs_workpoint = svc[1];
+			break;
+		case CPU_1600_DDR_1050_RCLK_1050:
+		case CPU_1600_DDR_900_RCLK_900_2:
+			if (perr[2])
+				goto perror;
+			avs_workpoint = svc[2];
+			break;
+		case CPU_1300_DDR_800_RCLK_800:
+		case CPU_1300_DDR_650_RCLK_650:
+			if (perr[3])
+				goto perror;
+			avs_workpoint = svc[3];
+			break;
+		case CPU_2000_DDR_1200_RCLK_1200:
+		case CPU_2000_DDR_1050_RCLK_1050:
+		default:
+			if (perr[0])
+				goto perror;
+			avs_workpoint = svc[0];
+			break;
+		}
+	} else if (device_id == MVEBU_70X0_DEV_ID ||
+		   device_id == MVEBU_70X0_CP115_DEV_ID) {
+		/* A7040/A7020/A6040 */
+		NOTICE("SVC: DEV ID: %s, FREQ Mode: 0x%x\n",
+			single_cluster == 0 ? "7040" : "7020", freq_pidi_mode);
+		switch (freq_pidi_mode) {
+		case CPU_1400_DDR_800_RCLK_800:
+			if (single_cluster) {/* 7020 */
+				if (perr[1])
+					goto perror;
+				avs_workpoint = svc[1];
+			} else {
+				if (perr[0])
+					goto perror;
+				avs_workpoint = svc[0];
+			}
+			break;
+		case CPU_1200_DDR_800_RCLK_800:
+			if (single_cluster) {/* 7020 */
+				if (perr[2])
+					goto perror;
+				avs_workpoint = svc[2];
+			} else {
+				if (perr[1])
+					goto perror;
+				avs_workpoint = svc[1];
+			}
+			break;
+		case CPU_800_DDR_800_RCLK_800:
+		case CPU_1000_DDR_800_RCLK_800:
+			if (single_cluster) {/* 7020 */
+				if (perr[3])
+					goto perror;
+				avs_workpoint = svc[3];
+			} else {
+				if (perr[2])
+					goto perror;
+				avs_workpoint = svc[2];
+			}
+			break;
+		case CPU_600_DDR_800_RCLK_800:
+			if (perr[3])
+				goto perror;
+			avs_workpoint = svc[3]; /* Same for 6040 and 7020 */
+			break;
+		case CPU_1600_DDR_800_RCLK_800: /* 7020 only */
+		default:
+			if (single_cluster) {/* 7020 */
+				if (perr[0])
+					goto perror;
+				avs_workpoint = svc[0];
+			} else
+				avs_workpoint = 0;
+			break;
+		}
+	} else {
+		ERROR("SVC: Unsupported Device ID 0x%x\n", device_id);
+		return;
+	}
+
+	/* Set AVS control if needed */
+	if (avs_workpoint == 0) {
+		ERROR("SVC: AVS work point not changed\n");
+		return;
+	}
+
+	/* Remove parity bit */
+	avs_workpoint &= 0x7F;
+
+	reg_val  = mmio_read_32(AVS_EN_CTRL_REG);
+	NOTICE("SVC: AVS work point changed from 0x%x to 0x%x\n",
+		(reg_val & AVS_VDD_LOW_LIMIT_MASK) >> AVS_LOW_VDD_LIMIT_OFFSET,
+		avs_workpoint);
+	reg_val &= ~(AVS_VDD_LOW_LIMIT_MASK | AVS_VDD_HIGH_LIMIT_MASK);
+	reg_val |= 0x1 << AVS_ENABLE_OFFSET;
+	reg_val |= avs_workpoint << AVS_HIGH_VDD_LIMIT_OFFSET;
+	reg_val |= avs_workpoint << AVS_LOW_VDD_LIMIT_OFFSET;
+	mmio_write_32(AVS_EN_CTRL_REG, reg_val);
+	return;
+
+perror:
+	ERROR("Failed SVC WP[%d] parity check!\n", i);
+	ERROR("Ignoring the WP values\n");
+}
+
+#if PLAT_RECOVERY_IMAGE_ENABLE
+static int ble_skip_image_i2c(struct skip_image *skip_im)
+{
+	ERROR("skipping image using i2c is not supported\n");
+	/* not supported */
+	return 0;
+}
+
+static int ble_skip_image_other(struct skip_image *skip_im)
+{
+	ERROR("implementation missing for skip image request\n");
+	/* not supported, make your own implementation */
+	return 0;
+}
+
+static int ble_skip_image_gpio(struct skip_image *skip_im)
+{
+	unsigned int val;
+	unsigned int mpp_address = 0;
+	unsigned int offset = 0;
+
+	switch (skip_im->info.test.cp_ap) {
+	case(CP):
+		mpp_address = MVEBU_CP_GPIO_DATA_IN(skip_im->info.test.cp_index,
+						    skip_im->info.gpio.num);
+		if (skip_im->info.gpio.num > NUM_OF_GPIO_PER_REG)
+			offset = skip_im->info.gpio.num - NUM_OF_GPIO_PER_REG;
+		else
+			offset = skip_im->info.gpio.num;
+		break;
+	case(AP):
+		mpp_address = MVEBU_AP_GPIO_DATA_IN;
+		offset = skip_im->info.gpio.num;
+		break;
+	}
+
+	val = mmio_read_32(mpp_address);
+	val &= (1 << offset);
+	if ((!val && skip_im->info.gpio.button_state == HIGH) ||
+	    (val && skip_im->info.gpio.button_state == LOW)) {
+		mmio_write_32(SCRATCH_PAD_REG2, SCRATCH_PAD_SKIP_VAL);
+		return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * This function checks if there's a skip image request:
+ * return values:
+ * 1: (true) images request been made.
+ * 0: (false) no image request been made.
+ */
+static int  ble_skip_current_image(void)
+{
+	struct skip_image *skip_im;
+
+	/*fetching skip image info*/
+	skip_im = (struct skip_image *)plat_marvell_get_skip_image_data();
+
+	if (skip_im == NULL)
+		return 0;
+
+	/* check if skipping image request has already been made */
+	if (mmio_read_32(SCRATCH_PAD_REG2) == SCRATCH_PAD_SKIP_VAL)
+		return 0;
+
+	switch (skip_im->detection_method) {
+	case GPIO:
+		return ble_skip_image_gpio(skip_im);
+	case I2C:
+		return ble_skip_image_i2c(skip_im);
+	case USER_DEFINED:
+		return ble_skip_image_other(skip_im);
+	}
+
+	return 0;
+}
+#endif
+
+/* Switch to ARO from PLL in ap807 */
+static void aro_to_pll(void)
+{
+	unsigned int reg;
+
+	/* switch from ARO to PLL */
+	reg = mmio_read_32(AP807_CPU_ARO_0_CTRL_0);
+	reg |= AP807_CPU_ARO_SEL_PLL_MASK;
+	mmio_write_32(AP807_CPU_ARO_0_CTRL_0, reg);
+
+	reg = mmio_read_32(AP807_CPU_ARO_1_CTRL_0);
+	reg |= AP807_CPU_ARO_SEL_PLL_MASK;
+	mmio_write_32(AP807_CPU_ARO_1_CTRL_0, reg);
+
+	mdelay(1000);
+
+	/* disable ARO clk driver */
+	reg = mmio_read_32(AP807_CPU_ARO_0_CTRL_0);
+	reg |= (AP807_CPU_ARO_CLK_EN_MASK);
+	mmio_write_32(AP807_CPU_ARO_0_CTRL_0, reg);
+
+	reg = mmio_read_32(AP807_CPU_ARO_1_CTRL_0);
+	reg |= (AP807_CPU_ARO_CLK_EN_MASK);
+	mmio_write_32(AP807_CPU_ARO_1_CTRL_0, reg);
+}
+
+int ble_plat_setup(int *skip)
+{
+	int ret;
+
+	/* Power down unused CPUs */
+	plat_marvell_early_cpu_powerdown();
+
+	/*
+	 * Save the current CCU configuration and make required changes:
+	 * - Allow access to DRAM larger than 4GB
+	 * - Open memory access to all CPn peripherals
+	 */
+	ble_plat_mmap_config(MMAP_SAVE_AND_CONFIG);
+
+#if PLAT_RECOVERY_IMAGE_ENABLE
+	/* Check if there's a skip request to bootRom recovery Image */
+	if (ble_skip_current_image()) {
+		/* close memory access to all CPn peripherals. */
+		ble_plat_mmap_config(MMAP_RESTORE_SAVED);
+		*skip = 1;
+		return 0;
+	}
+#endif
+	/* Do required CP-110 setups for BLE stage */
+	cp110_ble_init(MVEBU_CP_REGS_BASE(0));
+
+	/* Setup AVS */
+	ble_plat_svc_config();
+
+	/* work with PLL clock driver in AP807 */
+	if (ble_get_ap_type() == CHIP_ID_AP807)
+		aro_to_pll();
+
+	/* Do required AP setups for BLE stage */
+	ap_ble_init();
+
+	/* Update DRAM topology (scan DIMM SPDs) */
+	plat_marvell_dram_update_topology();
+
+	/* Kick it in */
+	ret = dram_init();
+
+	/* Restore the original CCU configuration before exit from BLE */
+	ble_plat_mmap_config(MMAP_RESTORE_SAVED);
+
+	return ret;
+}

plat/marvell/a8k/common/plat_pm.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <a8k_common.h>
+#include <assert.h>
+#include <bakery_lock.h>
+#include <debug.h>
+#include <delay_timer.h>
+#include <cache_llc.h>
+#include <console.h>
+#include <gicv2.h>
+#include <marvell_pm.h>
+#include <mmio.h>
+#include <mss_pm_ipc.h>
+#include <plat_marvell.h>
+#include <platform.h>
+#include <plat_pm_trace.h>
+#include <platform.h>
+
+#define MVEBU_PRIVATE_UID_REG		0x30
+#define MVEBU_RFU_GLOBL_SW_RST		0x84
+#define MVEBU_CCU_RVBAR(cpu)		(MVEBU_REGS_BASE + 0x640 + (cpu * 4))
+#define MVEBU_CCU_CPU_UN_RESET(cpu)	(MVEBU_REGS_BASE + 0x650 + (cpu * 4))
+
+#define MPIDR_CPU_GET(mpidr)		((mpidr) & MPIDR_CPU_MASK)
+#define MPIDR_CLUSTER_GET(mpidr)	MPIDR_AFFLVL1_VAL((mpidr))
+
+#define MVEBU_GPIO_MASK(index)		(1 << (index % 32))
+#define MVEBU_MPP_MASK(index)		(0xF << (4 * (index % 8)))
+#define MVEBU_GPIO_VALUE(index, value)	(value << (index % 32))
+
+#define MVEBU_USER_CMD_0_REG		(MVEBU_DRAM_MAC_BASE + 0x20)
+#define MVEBU_USER_CMD_CH0_OFFSET	28
+#define MVEBU_USER_CMD_CH0_MASK		(1 << MVEBU_USER_CMD_CH0_OFFSET)
+#define MVEBU_USER_CMD_CH0_EN		(1 << MVEBU_USER_CMD_CH0_OFFSET)
+#define MVEBU_USER_CMD_CS_OFFSET	24
+#define MVEBU_USER_CMD_CS_MASK		(0xF << MVEBU_USER_CMD_CS_OFFSET)
+#define MVEBU_USER_CMD_CS_ALL		(0xF << MVEBU_USER_CMD_CS_OFFSET)
+#define MVEBU_USER_CMD_SR_OFFSET	6
+#define MVEBU_USER_CMD_SR_MASK		(0x3 << MVEBU_USER_CMD_SR_OFFSET)
+#define MVEBU_USER_CMD_SR_ENTER		(0x1 << MVEBU_USER_CMD_SR_OFFSET)
+#define MVEBU_MC_PWR_CTRL_REG		(MVEBU_DRAM_MAC_BASE + 0x54)
+#define MVEBU_MC_AC_ON_DLY_OFFSET	8
+#define MVEBU_MC_AC_ON_DLY_MASK		(0xF << MVEBU_MC_AC_ON_DLY_OFFSET)
+#define MVEBU_MC_AC_ON_DLY_DEF_VAR	(8 << MVEBU_MC_AC_ON_DLY_OFFSET)
+#define MVEBU_MC_AC_OFF_DLY_OFFSET	4
+#define MVEBU_MC_AC_OFF_DLY_MASK	(0xF << MVEBU_MC_AC_OFF_DLY_OFFSET)
+#define MVEBU_MC_AC_OFF_DLY_DEF_VAR	(0xC << MVEBU_MC_AC_OFF_DLY_OFFSET)
+#define MVEBU_MC_PHY_AUTO_OFF_OFFSET	0
+#define MVEBU_MC_PHY_AUTO_OFF_MASK	(1 << MVEBU_MC_PHY_AUTO_OFF_OFFSET)
+#define MVEBU_MC_PHY_AUTO_OFF_EN	(1 << MVEBU_MC_PHY_AUTO_OFF_OFFSET)
+
+/* this lock synchronize AP multiple cores execution with MSS */
+DEFINE_BAKERY_LOCK(pm_sys_lock);
+
+/* Weak definitions may be overridden in specific board */
+#pragma weak plat_marvell_get_pm_cfg
+
+/* AP806 CPU power down /power up definitions */
+enum CPU_ID {
+	CPU0,
+	CPU1,
+	CPU2,
+	CPU3
+};
+
+#define REG_WR_VALIDATE_TIMEOUT		(2000)
+
+#define FEATURE_DISABLE_STATUS_REG			\
+			(MVEBU_REGS_BASE + 0x6F8230)
+#define FEATURE_DISABLE_STATUS_CPU_CLUSTER_OFFSET	4
+#define FEATURE_DISABLE_STATUS_CPU_CLUSTER_MASK		\
+			(0x1 << FEATURE_DISABLE_STATUS_CPU_CLUSTER_OFFSET)
+
+#ifdef MVEBU_SOC_AP807
+	#define PWRC_CPUN_CR_PWR_DN_RQ_OFFSET		1
+	#define PWRC_CPUN_CR_LDO_BYPASS_RDY_OFFSET	0
+#else
+#define PWRC_CPUN_CR_PWR_DN_RQ_OFFSET		0
+	#define PWRC_CPUN_CR_LDO_BYPASS_RDY_OFFSET	31
+#endif
+
+#define PWRC_CPUN_CR_REG(cpu_id)		\
+			(MVEBU_REGS_BASE + 0x680000 + (cpu_id * 0x10))
+#define PWRC_CPUN_CR_PWR_DN_RQ_MASK		\
+			(0x1 << PWRC_CPUN_CR_PWR_DN_RQ_OFFSET)
+#define PWRC_CPUN_CR_ISO_ENABLE_OFFSET		16
+#define PWRC_CPUN_CR_ISO_ENABLE_MASK		\
+			(0x1 << PWRC_CPUN_CR_ISO_ENABLE_OFFSET)
+#define PWRC_CPUN_CR_LDO_BYPASS_RDY_MASK	\
+			(0x1 << PWRC_CPUN_CR_LDO_BYPASS_RDY_OFFSET)
+
+#define CCU_B_PRCRN_REG(cpu_id)			\
+			(MVEBU_REGS_BASE + 0x1A50 + \
+			((cpu_id / 2) * (0x400)) + ((cpu_id % 2) * 4))
+#define CCU_B_PRCRN_CPUPORESET_STATIC_OFFSET	0
+#define CCU_B_PRCRN_CPUPORESET_STATIC_MASK	\
+			(0x1 << CCU_B_PRCRN_CPUPORESET_STATIC_OFFSET)
+
+/* power switch fingers */
+#define AP807_PWRC_LDO_CR0_REG			\
+			(MVEBU_REGS_BASE + 0x680000 + 0x100)
+#define AP807_PWRC_LDO_CR0_OFFSET		16
+#define AP807_PWRC_LDO_CR0_MASK			\
+			(0xff << AP807_PWRC_LDO_CR0_OFFSET)
+#define AP807_PWRC_LDO_CR0_VAL			0xfd
+
+/*
+ * Power down CPU:
+ * Used to reduce power consumption, and avoid SoC unnecessary temperature rise.
+ */
+static int plat_marvell_cpu_powerdown(int cpu_id)
+{
+	uint32_t	reg_val;
+	int		exit_loop = REG_WR_VALIDATE_TIMEOUT;
+
+	INFO("Powering down CPU%d\n", cpu_id);
+
+	/* 1. Isolation enable */
+	reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+	reg_val |= 0x1 << PWRC_CPUN_CR_ISO_ENABLE_OFFSET;
+	mmio_write_32(PWRC_CPUN_CR_REG(cpu_id), reg_val);
+
+	/* 2. Read and check Isolation enabled - verify bit set to 1 */
+	do {
+		reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+		exit_loop--;
+	} while (!(reg_val & (0x1 << PWRC_CPUN_CR_ISO_ENABLE_OFFSET)) &&
+		 exit_loop > 0);
+
+	/* 3. Switch off CPU power */
+	reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+	reg_val &= ~PWRC_CPUN_CR_PWR_DN_RQ_MASK;
+	mmio_write_32(PWRC_CPUN_CR_REG(cpu_id), reg_val);
+
+	/* 4. Read and check Switch Off - verify bit set to 0 */
+	exit_loop = REG_WR_VALIDATE_TIMEOUT;
+	do {
+		reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+		exit_loop--;
+	} while (reg_val & PWRC_CPUN_CR_PWR_DN_RQ_MASK && exit_loop > 0);
+
+	if (exit_loop <= 0)
+		goto cpu_poweroff_error;
+
+	/* 5. De-Assert power ready */
+	reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+	reg_val &= ~PWRC_CPUN_CR_LDO_BYPASS_RDY_MASK;
+	mmio_write_32(PWRC_CPUN_CR_REG(cpu_id), reg_val);
+
+	/* 6. Assert CPU POR reset */
+	reg_val = mmio_read_32(CCU_B_PRCRN_REG(cpu_id));
+	reg_val &= ~CCU_B_PRCRN_CPUPORESET_STATIC_MASK;
+	mmio_write_32(CCU_B_PRCRN_REG(cpu_id), reg_val);
+
+	/* 7. Read and poll on Validate the CPU is out of reset */
+	exit_loop = REG_WR_VALIDATE_TIMEOUT;
+	do {
+		reg_val = mmio_read_32(CCU_B_PRCRN_REG(cpu_id));
+		exit_loop--;
+	} while (reg_val & CCU_B_PRCRN_CPUPORESET_STATIC_MASK && exit_loop > 0);
+
+	if (exit_loop <= 0)
+		goto cpu_poweroff_error;
+
+	INFO("Successfully powered down CPU%d\n", cpu_id);
+
+	return 0;
+
+cpu_poweroff_error:
+	ERROR("ERROR: Can't power down CPU%d\n", cpu_id);
+	return -1;
+}
+
+/*
+ * Power down CPUs 1-3 at early boot stage,
+ * to reduce power consumption and SoC temperature.
+ * This is triggered by BLE prior to DDR initialization.
+ *
+ * Note:
+ * All CPUs will be powered up by plat_marvell_cpu_powerup on Linux boot stage,
+ * which is triggered by PSCI ops (pwr_domain_on).
+ */
+int plat_marvell_early_cpu_powerdown(void)
+{
+	uint32_t cpu_cluster_status =
+		mmio_read_32(FEATURE_DISABLE_STATUS_REG) &
+			     FEATURE_DISABLE_STATUS_CPU_CLUSTER_MASK;
+	/* if cpu_cluster_status bit is set,
+	 * that means we have only single cluster
+	 */
+	int cluster_count = cpu_cluster_status ? 1 : 2;
+
+	INFO("Powering off unused CPUs\n");
+
+	/* CPU1 is in AP806 cluster-0, which always exists, so power it down */
+	if (plat_marvell_cpu_powerdown(CPU1) == -1)
+		return -1;
+
+	/*
+	 * CPU2-3 are in AP806 2nd cluster (cluster-1),
+	 * which doesn't exists in dual-core systems.
+	 * so need to check if we have dual-core (single cluster)
+	 * or quad-code (2 clusters)
+	 */
+	if (cluster_count == 2) {
+		/* CPU2-3 are part of 2nd cluster */
+		if (plat_marvell_cpu_powerdown(CPU2) == -1)
+			return -1;
+		if (plat_marvell_cpu_powerdown(CPU3) == -1)
+			return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * Power up CPU - part of Linux boot stage
+ */
+static int plat_marvell_cpu_powerup(u_register_t mpidr)
+{
+	uint32_t	reg_val;
+	int	cpu_id = MPIDR_CPU_GET(mpidr),
+		cluster = MPIDR_CLUSTER_GET(mpidr);
+	int	exit_loop = REG_WR_VALIDATE_TIMEOUT;
+
+	/* calculate absolute CPU ID */
+	cpu_id = cluster * PLAT_MARVELL_CLUSTER_CORE_COUNT + cpu_id;
+
+	INFO("Powering on CPU%d\n", cpu_id);
+
+#ifdef MVEBU_SOC_AP807
+	/* Activate 2 power switch fingers */
+	reg_val = mmio_read_32(AP807_PWRC_LDO_CR0_REG);
+	reg_val &= ~(AP807_PWRC_LDO_CR0_MASK);
+	reg_val |= (AP807_PWRC_LDO_CR0_VAL << AP807_PWRC_LDO_CR0_OFFSET);
+	mmio_write_32(AP807_PWRC_LDO_CR0_REG, reg_val);
+	udelay(100);
+#endif
+
+	/* 1. Switch CPU power ON */
+	reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+	reg_val |= 0x1 << PWRC_CPUN_CR_PWR_DN_RQ_OFFSET;
+	mmio_write_32(PWRC_CPUN_CR_REG(cpu_id), reg_val);
+
+	/* 2. Wait for CPU on, up to 100 uSec: */
+	udelay(100);
+
+	/* 3. Assert power ready */
+	reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+	reg_val |= 0x1 << PWRC_CPUN_CR_LDO_BYPASS_RDY_OFFSET;
+	mmio_write_32(PWRC_CPUN_CR_REG(cpu_id), reg_val);
+
+	/* 4. Read & Validate power ready
+	 * used in order to generate 16 Host CPU cycles
+	 */
+	do {
+		reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+		exit_loop--;
+	} while (!(reg_val & (0x1 << PWRC_CPUN_CR_LDO_BYPASS_RDY_OFFSET)) &&
+		 exit_loop > 0);
+
+	if (exit_loop <= 0)
+		goto cpu_poweron_error;
+
+	/* 5. Isolation disable */
+	reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+	reg_val &= ~PWRC_CPUN_CR_ISO_ENABLE_MASK;
+	mmio_write_32(PWRC_CPUN_CR_REG(cpu_id), reg_val);
+
+	/* 6. Read and check Isolation enabled - verify bit set to 1 */
+	exit_loop = REG_WR_VALIDATE_TIMEOUT;
+	do {
+		reg_val = mmio_read_32(PWRC_CPUN_CR_REG(cpu_id));
+		exit_loop--;
+	} while ((reg_val & (0x1 << PWRC_CPUN_CR_ISO_ENABLE_OFFSET)) &&
+		 exit_loop > 0);
+
+	/* 7. De Assert CPU POR reset & Core reset */
+	reg_val = mmio_read_32(CCU_B_PRCRN_REG(cpu_id));
+	reg_val |= 0x1 << CCU_B_PRCRN_CPUPORESET_STATIC_OFFSET;
+	mmio_write_32(CCU_B_PRCRN_REG(cpu_id), reg_val);
+
+	/* 8. Read & Validate CPU POR reset */
+	exit_loop = REG_WR_VALIDATE_TIMEOUT;
+	do {
+		reg_val = mmio_read_32(CCU_B_PRCRN_REG(cpu_id));
+		exit_loop--;
+	} while (!(reg_val & (0x1 << CCU_B_PRCRN_CPUPORESET_STATIC_OFFSET)) &&
+		 exit_loop > 0);
+
+	if (exit_loop <= 0)
+		goto cpu_poweron_error;
+
+	INFO("Successfully powered on CPU%d\n", cpu_id);
+
+	return 0;
+
+cpu_poweron_error:
+	ERROR("ERROR: Can't power up CPU%d\n", cpu_id);
+	return -1;
+}
+
+static int plat_marvell_cpu_on(u_register_t mpidr)
+{
+	int cpu_id;
+	int cluster;
+
+	/* Set barierr */
+	dsbsy();
+
+	/* Get cpu number - use CPU ID */
+	cpu_id =  MPIDR_CPU_GET(mpidr);
+
+	/* Get cluster number - use affinity level 1 */
+	cluster = MPIDR_CLUSTER_GET(mpidr);
+
+	/* Set CPU private UID */
+	mmio_write_32(MVEBU_REGS_BASE + MVEBU_PRIVATE_UID_REG, cluster + 0x4);
+
+	/* Set the cpu start address to BL1 entry point (align to 0x10000) */
+	mmio_write_32(MVEBU_CCU_RVBAR(cpu_id),
+		      PLAT_MARVELL_CPU_ENTRY_ADDR >> 16);
+
+	/* Get the cpu out of reset */
+	mmio_write_32(MVEBU_CCU_CPU_UN_RESET(cpu_id), 0x10001);
+
+	return 0;
+}
+
+/*****************************************************************************
+ * A8K handler called to check the validity of the power state
+ * parameter.
+ *****************************************************************************
+ */
+static int a8k_validate_power_state(unsigned int power_state,
+			    psci_power_state_t *req_state)
+{
+	int pstate = psci_get_pstate_type(power_state);
+	int pwr_lvl = psci_get_pstate_pwrlvl(power_state);
+	int i;
+
+	if (pwr_lvl > PLAT_MAX_PWR_LVL)
+		return PSCI_E_INVALID_PARAMS;
+
+	/* Sanity check the requested state */
+	if (pstate == PSTATE_TYPE_STANDBY) {
+		/*
+		 * It's possible to enter standby only on power level 0
+		 * Ignore any other power level.
+		 */
+		if (pwr_lvl != MARVELL_PWR_LVL0)
+			return PSCI_E_INVALID_PARAMS;
+
+		req_state->pwr_domain_state[MARVELL_PWR_LVL0] =
+					MARVELL_LOCAL_STATE_RET;
+	} else {
+		for (i = MARVELL_PWR_LVL0; i <= pwr_lvl; i++)
+			req_state->pwr_domain_state[i] =
+					MARVELL_LOCAL_STATE_OFF;
+	}
+
+	/*
+	 * We expect the 'state id' to be zero.
+	 */
+	if (psci_get_pstate_id(power_state))
+		return PSCI_E_INVALID_PARAMS;
+
+	return PSCI_E_SUCCESS;
+}
+
+/*****************************************************************************
+ * A8K handler called when a CPU is about to enter standby.
+ *****************************************************************************
+ */
+static void a8k_cpu_standby(plat_local_state_t cpu_state)
+{
+	ERROR("%s: needs to be implemented\n", __func__);
+	panic();
+}
+
+/*****************************************************************************
+ * A8K handler called when a power domain is about to be turned on. The
+ * mpidr determines the CPU to be turned on.
+ *****************************************************************************
+ */
+static int a8k_pwr_domain_on(u_register_t mpidr)
+{
+	/* Power up CPU (CPUs 1-3 are powered off at start of BLE) */
+	plat_marvell_cpu_powerup(mpidr);
+
+	if (is_pm_fw_running()) {
+		unsigned int target =
+				((mpidr & 0xFF) + (((mpidr >> 8) & 0xFF) * 2));
+
+		/*
+		 * pm system synchronization - used to synchronize
+		 * multiple core access to MSS
+		 */
+		bakery_lock_get(&pm_sys_lock);
+
+		/* send CPU ON IPC Message to MSS */
+		mss_pm_ipc_msg_send(target, PM_IPC_MSG_CPU_ON, 0);
+
+		/* trigger IPC message to MSS */
+		mss_pm_ipc_msg_trigger();
+
+		/* pm system synchronization */
+		bakery_lock_release(&pm_sys_lock);
+
+		/* trace message */
+		PM_TRACE(TRACE_PWR_DOMAIN_ON | target);
+	} else {
+		/* proprietary CPU ON exection flow */
+		plat_marvell_cpu_on(mpidr);
+	}
+
+	return 0;
+}
+
+/*****************************************************************************
+ * A8K handler called to validate the entry point.
+ *****************************************************************************
+ */
+static int a8k_validate_ns_entrypoint(uintptr_t entrypoint)
+{
+	return PSCI_E_SUCCESS;
+}
+
+/*****************************************************************************
+ * A8K handler called when a power domain is about to be turned off. The
+ * target_state encodes the power state that each level should transition to.
+ *****************************************************************************
+ */
+static void a8k_pwr_domain_off(const psci_power_state_t *target_state)
+{
+	if (is_pm_fw_running()) {
+		unsigned int idx = plat_my_core_pos();
+
+		/* Prevent interrupts from spuriously waking up this cpu */
+		gicv2_cpuif_disable();
+
+		/* pm system synchronization - used to synchronize multiple
+		 * core access to MSS
+		 */
+		bakery_lock_get(&pm_sys_lock);
+
+		/* send CPU OFF IPC Message to MSS */
+		mss_pm_ipc_msg_send(idx, PM_IPC_MSG_CPU_OFF, target_state);
+
+		/* trigger IPC message to MSS */
+		mss_pm_ipc_msg_trigger();
+
+		/* pm system synchronization */
+		bakery_lock_release(&pm_sys_lock);
+
+		/* trace message */
+		PM_TRACE(TRACE_PWR_DOMAIN_OFF);
+	} else {
+		INFO("%s: is not supported without SCP\n", __func__);
+	}
+}
+
+/* Get PM config to power off the SoC */
+void *plat_marvell_get_pm_cfg(void)
+{
+	return NULL;
+}
+
+/*
+ * This function should be called on restore from
+ * "suspend to RAM" state when the execution flow
+ * has to bypass BootROM image to RAM copy and speed up
+ * the system recovery
+ *
+ */
+static void plat_marvell_exit_bootrom(void)
+{
+	marvell_exit_bootrom(PLAT_MARVELL_TRUSTED_ROM_BASE);
+}
+
+/*
+ * Prepare for the power off of the system via GPIO
+ */
+static void plat_marvell_power_off_gpio(struct power_off_method *pm_cfg,
+					register_t *gpio_addr,
+					register_t *gpio_data)
+{
+	unsigned int gpio;
+	unsigned int idx;
+	unsigned int shift;
+	unsigned int reg;
+	unsigned int addr;
+	gpio_info_t *info;
+	unsigned int tog_bits;
+
+	assert((pm_cfg->cfg.gpio.pin_count < PMIC_GPIO_MAX_NUMBER) &&
+	       (pm_cfg->cfg.gpio.step_count < PMIC_GPIO_MAX_TOGGLE_STEP));
+
+	/* Prepare GPIOs for PMIC */
+	for (gpio = 0; gpio < pm_cfg->cfg.gpio.pin_count; gpio++) {
+		info = &pm_cfg->cfg.gpio.info[gpio];
+		/* Set PMIC GPIO to output mode */
+		reg = mmio_read_32(MVEBU_CP_GPIO_DATA_OUT_EN(
+				   info->cp_index, info->gpio_index));
+		mmio_write_32(MVEBU_CP_GPIO_DATA_OUT_EN(
+			      info->cp_index, info->gpio_index),
+			      reg & ~MVEBU_GPIO_MASK(info->gpio_index));
+
+		/* Set the appropriate MPP to GPIO mode */
+		reg = mmio_read_32(MVEBU_PM_MPP_REGS(info->cp_index,
+						     info->gpio_index));
+		mmio_write_32(MVEBU_PM_MPP_REGS(info->cp_index,
+						info->gpio_index),
+			reg & ~MVEBU_MPP_MASK(info->gpio_index));
+	}
+
+	/* Wait for MPP & GPIO pre-configurations done */
+	mdelay(pm_cfg->cfg.gpio.delay_ms);
+
+	/* Toggle the GPIO values, and leave final step to be triggered
+	 * after  DDR self-refresh is enabled
+	 */
+	for (idx = 0; idx < pm_cfg->cfg.gpio.step_count; idx++) {
+		tog_bits = pm_cfg->cfg.gpio.seq[idx];
+
+		/* The GPIOs must be within same GPIO register,
+		 * thus could get the original value by first GPIO
+		 */
+		info = &pm_cfg->cfg.gpio.info[0];
+		reg = mmio_read_32(MVEBU_CP_GPIO_DATA_OUT(
+				   info->cp_index, info->gpio_index));
+		addr = MVEBU_CP_GPIO_DATA_OUT(info->cp_index, info->gpio_index);
+
+		for (gpio = 0; gpio < pm_cfg->cfg.gpio.pin_count; gpio++) {
+			shift = pm_cfg->cfg.gpio.info[gpio].gpio_index % 32;
+			if (GPIO_LOW == (tog_bits & (1 << gpio)))
+				reg &= ~(1 << shift);
+			else
+				reg |= (1 << shift);
+		}
+
+		/* Set the GPIO register, for last step just store
+		 * register address and values to system registers
+		 */
+		if (idx < pm_cfg->cfg.gpio.step_count - 1) {
+			mmio_write_32(MVEBU_CP_GPIO_DATA_OUT(
+				      info->cp_index, info->gpio_index), reg);
+			mdelay(pm_cfg->cfg.gpio.delay_ms);
+		} else {
+			/* Save GPIO register and address values for
+			 * finishing the power down operation later
+			 */
+			*gpio_addr = addr;
+			*gpio_data = reg;
+		}
+	}
+}
+
+/*
+ * Prepare for the power off of the system
+ */
+static void plat_marvell_power_off_prepare(struct power_off_method *pm_cfg,
+					   register_t *addr, register_t *data)
+{
+	switch (pm_cfg->type) {
+	case PMIC_GPIO:
+		plat_marvell_power_off_gpio(pm_cfg, addr, data);
+		break;
+	default:
+		break;
+	}
+}
+
+/*****************************************************************************
+ * A8K handler called when a power domain is about to be suspended. The
+ * target_state encodes the power state that each level should transition to.
+ *****************************************************************************
+ */
+static void a8k_pwr_domain_suspend(const psci_power_state_t *target_state)
+{
+	if (is_pm_fw_running()) {
+		unsigned int idx;
+
+		/* Prevent interrupts from spuriously waking up this cpu */
+		gicv2_cpuif_disable();
+
+		idx = plat_my_core_pos();
+
+		/* pm system synchronization - used to synchronize multiple
+		 * core access to MSS
+		 */
+		bakery_lock_get(&pm_sys_lock);
+
+		/* send CPU Suspend IPC Message to MSS */
+		mss_pm_ipc_msg_send(idx, PM_IPC_MSG_CPU_SUSPEND, target_state);
+
+		/* trigger IPC message to MSS */
+		mss_pm_ipc_msg_trigger();
+
+		/* pm system synchronization */
+		bakery_lock_release(&pm_sys_lock);
+
+		/* trace message */
+		PM_TRACE(TRACE_PWR_DOMAIN_SUSPEND);
+	} else {
+		uintptr_t *mailbox = (void *)PLAT_MARVELL_MAILBOX_BASE;
+
+		INFO("Suspending to RAM\n");
+
+		/* Prevent interrupts from spuriously waking up this cpu */
+		gicv2_cpuif_disable();
+
+		mailbox[MBOX_IDX_SUSPEND_MAGIC] = MVEBU_MAILBOX_SUSPEND_STATE;
+		mailbox[MBOX_IDX_ROM_EXIT_ADDR] = (uintptr_t)&plat_marvell_exit_bootrom;
+
+#if PLAT_MARVELL_SHARED_RAM_CACHED
+		flush_dcache_range(PLAT_MARVELL_MAILBOX_BASE +
+		MBOX_IDX_SUSPEND_MAGIC * sizeof(uintptr_t),
+		2 * sizeof(uintptr_t));
+#endif
+		/* Flush and disable LLC before going off-power */
+		llc_disable(0);
+
+		isb();
+		/*
+		 * Do not halt here!
+		 * The function must return for allowing the caller function
+		 * psci_power_up_finish() to do the proper context saving and
+		 * to release the CPU lock.
+		 */
+	}
+}
+
+/*****************************************************************************
+ * A8K handler called when a power domain has just been powered on after
+ * being turned off earlier. The target_state encodes the low power state that
+ * each level has woken up from.
+ *****************************************************************************
+ */
+static void a8k_pwr_domain_on_finish(const psci_power_state_t *target_state)
+{
+	/* arch specific configuration */
+	marvell_psci_arch_init(0);
+
+	/* Interrupt initialization */
+	gicv2_pcpu_distif_init();
+	gicv2_cpuif_enable();
+
+	if (is_pm_fw_running()) {
+		/* trace message */
+		PM_TRACE(TRACE_PWR_DOMAIN_ON_FINISH);
+	}
+}
+
+/*****************************************************************************
+ * A8K handler called when a power domain has just been powered on after
+ * having been suspended earlier. The target_state encodes the low power state
+ * that each level has woken up from.
+ * TODO: At the moment we reuse the on finisher and reinitialize the secure
+ * context. Need to implement a separate suspend finisher.
+ *****************************************************************************
+ */
+static void a8k_pwr_domain_suspend_finish(
+					const psci_power_state_t *target_state)
+{
+	if (is_pm_fw_running()) {
+		/* arch specific configuration */
+		marvell_psci_arch_init(0);
+
+		/* Interrupt initialization */
+		gicv2_cpuif_enable();
+
+		/* trace message */
+		PM_TRACE(TRACE_PWR_DOMAIN_SUSPEND_FINISH);
+	} else {
+		uintptr_t *mailbox = (void *)PLAT_MARVELL_MAILBOX_BASE;
+
+		/* Only primary CPU requres platform init */
+		if (!plat_my_core_pos()) {
+			/* Initialize the console to provide
+			 * early debug support
+			 */
+			console_init(PLAT_MARVELL_BOOT_UART_BASE,
+			PLAT_MARVELL_BOOT_UART_CLK_IN_HZ,
+			MARVELL_CONSOLE_BAUDRATE);
+
+			bl31_plat_arch_setup();
+			marvell_bl31_platform_setup();
+			/*
+			 * Remove suspend to RAM marker from the mailbox
+			 * for treating a regular reset as a cold boot
+			 */
+			mailbox[MBOX_IDX_SUSPEND_MAGIC] = 0;
+			mailbox[MBOX_IDX_ROM_EXIT_ADDR] = 0;
+#if PLAT_MARVELL_SHARED_RAM_CACHED
+			flush_dcache_range(PLAT_MARVELL_MAILBOX_BASE +
+			MBOX_IDX_SUSPEND_MAGIC * sizeof(uintptr_t),
+			2 * sizeof(uintptr_t));
+#endif
+		}
+	}
+}
+
+/*****************************************************************************
+ * This handler is called by the PSCI implementation during the `SYSTEM_SUSPEND`
+ * call to get the `power_state` parameter. This allows the platform to encode
+ * the appropriate State-ID field within the `power_state` parameter which can
+ * be utilized in `pwr_domain_suspend()` to suspend to system affinity level.
+ *****************************************************************************
+ */
+static void a8k_get_sys_suspend_power_state(psci_power_state_t *req_state)
+{
+	/* lower affinities use PLAT_MAX_OFF_STATE */
+	for (int i = MPIDR_AFFLVL0; i <= PLAT_MAX_PWR_LVL; i++)
+		req_state->pwr_domain_state[i] = PLAT_MAX_OFF_STATE;
+}
+
+static void
+__dead2 a8k_pwr_domain_pwr_down_wfi(const psci_power_state_t *target_state)
+{
+	struct power_off_method *pm_cfg;
+	unsigned int srcmd;
+	unsigned int sdram_reg;
+	register_t gpio_data = 0, gpio_addr = 0;
+
+	if (is_pm_fw_running()) {
+		psci_power_down_wfi();
+		panic();
+	}
+
+	pm_cfg = (struct power_off_method *)plat_marvell_get_pm_cfg();
+
+	/* Prepare for power off */
+	plat_marvell_power_off_prepare(pm_cfg, &gpio_addr, &gpio_data);
+
+	/* First step to enable DDR self-refresh
+	 * to keep the data during suspend
+	 */
+	mmio_write_32(MVEBU_MC_PWR_CTRL_REG, 0x8C1);
+
+	/* Save DDR self-refresh second step register
+	 * and value to be issued later
+	 */
+	sdram_reg = MVEBU_USER_CMD_0_REG;
+	srcmd = mmio_read_32(sdram_reg);
+	srcmd &= ~(MVEBU_USER_CMD_CH0_MASK | MVEBU_USER_CMD_CS_MASK |
+		 MVEBU_USER_CMD_SR_MASK);
+	srcmd |= (MVEBU_USER_CMD_CH0_EN | MVEBU_USER_CMD_CS_ALL |
+		 MVEBU_USER_CMD_SR_ENTER);
+
+	/*
+	 * Wait for DRAM is done using registers access only.
+	 * At this stage any access to DRAM (procedure call) will
+	 * release it from the self-refresh mode
+	 */
+	__asm__ volatile (
+		/* Align to a cache line */
+		"	.balign 64\n\t"
+
+		/* Enter self refresh */
+		"	str %[srcmd], [%[sdram_reg]]\n\t"
+
+		/*
+		 * Wait 100 cycles for DDR to enter self refresh, by
+		 * doing 50 times two instructions.
+		 */
+		"	mov x1, #50\n\t"
+		"1:	subs x1, x1, #1\n\t"
+		"	bne 1b\n\t"
+
+		/* Issue the command to trigger the SoC power off */
+		"	str	%[gpio_data], [%[gpio_addr]]\n\t"
+
+		/* Trap the processor */
+		"	b .\n\t"
+		: : [srcmd] "r" (srcmd), [sdram_reg] "r" (sdram_reg),
+		    [gpio_addr] "r" (gpio_addr),  [gpio_data] "r" (gpio_data)
+		: "x1");
+
+	panic();
+}
+
+/*****************************************************************************
+ * A8K handlers to shutdown/reboot the system
+ *****************************************************************************
+ */
+static void __dead2 a8k_system_off(void)
+{
+	ERROR("%s:  needs to be implemented\n", __func__);
+	panic();
+}
+
+void plat_marvell_system_reset(void)
+{
+	mmio_write_32(MVEBU_RFU_BASE + MVEBU_RFU_GLOBL_SW_RST, 0x0);
+}
+
+static void __dead2 a8k_system_reset(void)
+{
+	plat_marvell_system_reset();
+
+	/* we shouldn't get to this point */
+	panic();
+}
+
+/*****************************************************************************
+ * Export the platform handlers via plat_arm_psci_pm_ops. The ARM Standard
+ * platform layer will take care of registering the handlers with PSCI.
+ *****************************************************************************
+ */
+const plat_psci_ops_t plat_arm_psci_pm_ops = {
+	.cpu_standby = a8k_cpu_standby,
+	.pwr_domain_on = a8k_pwr_domain_on,
+	.pwr_domain_off = a8k_pwr_domain_off,
+	.pwr_domain_suspend = a8k_pwr_domain_suspend,
+	.pwr_domain_on_finish = a8k_pwr_domain_on_finish,
+	.get_sys_suspend_power_state = a8k_get_sys_suspend_power_state,
+	.pwr_domain_suspend_finish = a8k_pwr_domain_suspend_finish,
+	.pwr_domain_pwr_down_wfi = a8k_pwr_domain_pwr_down_wfi,
+	.system_off = a8k_system_off,
+	.system_reset = a8k_system_reset,
+	.validate_power_state = a8k_validate_power_state,
+	.validate_ns_entrypoint = a8k_validate_ns_entrypoint
+};

plat/marvell/a8k/common/plat_pm_trace.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <mmio.h>
+#include <mss_mem.h>
+#include <platform.h>
+#include <plat_pm_trace.h>
+
+#ifdef PM_TRACE_ENABLE
+
+/* core trace APIs */
+core_trace_func funcTbl[PLATFORM_CORE_COUNT] = {
+	pm_core_0_trace,
+	pm_core_1_trace,
+	pm_core_2_trace,
+	pm_core_3_trace};
+
+/*****************************************************************************
+ * pm_core0_trace
+ * pm_core1_trace
+ * pm_core2_trace
+ * pm_core_3trace
+ *
+ * This functions set trace info into core cyclic trace queue in MSS SRAM
+ * memory space
+ *****************************************************************************
+ */
+void pm_core_0_trace(unsigned int trace)
+{
+	unsigned int current_position_core_0 =
+			mmio_read_32(AP_MSS_ATF_CORE_0_CTRL_BASE);
+	mmio_write_32((AP_MSS_ATF_CORE_0_INFO_BASE  +
+		     (current_position_core_0 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     mmio_read_32(AP_MSS_TIMER_BASE));
+	mmio_write_32((AP_MSS_ATF_CORE_0_INFO_TRACE +
+		     (current_position_core_0 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     trace);
+	mmio_write_32(AP_MSS_ATF_CORE_0_CTRL_BASE,
+		     ((current_position_core_0 + 1) &
+		     AP_MSS_ATF_TRACE_SIZE_MASK));
+}
+
+void pm_core_1_trace(unsigned int trace)
+{
+	unsigned int current_position_core_1 =
+			mmio_read_32(AP_MSS_ATF_CORE_1_CTRL_BASE);
+	mmio_write_32((AP_MSS_ATF_CORE_1_INFO_BASE +
+		     (current_position_core_1 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     mmio_read_32(AP_MSS_TIMER_BASE));
+	mmio_write_32((AP_MSS_ATF_CORE_1_INFO_TRACE +
+		     (current_position_core_1 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     trace);
+	mmio_write_32(AP_MSS_ATF_CORE_1_CTRL_BASE,
+		     ((current_position_core_1 + 1) &
+		     AP_MSS_ATF_TRACE_SIZE_MASK));
+}
+
+void pm_core_2_trace(unsigned int trace)
+{
+	unsigned int current_position_core_2 =
+			mmio_read_32(AP_MSS_ATF_CORE_2_CTRL_BASE);
+	mmio_write_32((AP_MSS_ATF_CORE_2_INFO_BASE +
+		     (current_position_core_2 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     mmio_read_32(AP_MSS_TIMER_BASE));
+	mmio_write_32((AP_MSS_ATF_CORE_2_INFO_TRACE +
+		     (current_position_core_2 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     trace);
+	mmio_write_32(AP_MSS_ATF_CORE_2_CTRL_BASE,
+		     ((current_position_core_2 + 1) &
+		     AP_MSS_ATF_TRACE_SIZE_MASK));
+}
+
+void pm_core_3_trace(unsigned int trace)
+{
+	unsigned int current_position_core_3 =
+			mmio_read_32(AP_MSS_ATF_CORE_3_CTRL_BASE);
+	mmio_write_32((AP_MSS_ATF_CORE_3_INFO_BASE +
+		     (current_position_core_3 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     mmio_read_32(AP_MSS_TIMER_BASE));
+	mmio_write_32((AP_MSS_ATF_CORE_3_INFO_TRACE +
+		     (current_position_core_3 * AP_MSS_ATF_CORE_ENTRY_SIZE)),
+		     trace);
+	mmio_write_32(AP_MSS_ATF_CORE_3_CTRL_BASE,
+		     ((current_position_core_3 + 1) &
+		     AP_MSS_ATF_TRACE_SIZE_MASK));
+}
+#endif /* PM_TRACE_ENABLE */

plat/marvell/a8k/common/plat_thermal.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <debug.h>
+#include <delay_timer.h>
+#include <mmio.h>
+#include <mvebu_def.h>
+#include <thermal.h>
+
+#define THERMAL_TIMEOUT					1200
+
+#define THERMAL_SEN_CTRL_LSB_STRT_OFFSET		0
+#define THERMAL_SEN_CTRL_LSB_STRT_MASK			\
+				(0x1 << THERMAL_SEN_CTRL_LSB_STRT_OFFSET)
+#define THERMAL_SEN_CTRL_LSB_RST_OFFSET			1
+#define THERMAL_SEN_CTRL_LSB_RST_MASK			\
+				(0x1 << THERMAL_SEN_CTRL_LSB_RST_OFFSET)
+#define THERMAL_SEN_CTRL_LSB_EN_OFFSET			2
+#define THERMAL_SEN_CTRL_LSB_EN_MASK			\
+				(0x1 << THERMAL_SEN_CTRL_LSB_EN_OFFSET)
+
+#define THERMAL_SEN_CTRL_STATS_VALID_OFFSET		16
+#define THERMAL_SEN_CTRL_STATS_VALID_MASK		\
+				(0x1 << THERMAL_SEN_CTRL_STATS_VALID_OFFSET)
+#define THERMAL_SEN_CTRL_STATS_TEMP_OUT_OFFSET		0
+#define THERMAL_SEN_CTRL_STATS_TEMP_OUT_MASK		\
+			(0x3FF << THERMAL_SEN_CTRL_STATS_TEMP_OUT_OFFSET)
+
+#define THERMAL_SEN_OUTPUT_MSB				512
+#define THERMAL_SEN_OUTPUT_COMP				1024
+
+struct tsen_regs {
+	uint32_t ext_tsen_ctrl_lsb;
+	uint32_t ext_tsen_ctrl_msb;
+	uint32_t ext_tsen_status;
+};
+
+static int ext_tsen_probe(struct tsen_config *tsen_cfg)
+{
+	uint32_t reg, timeout = 0;
+	struct tsen_regs *base;
+
+	if (tsen_cfg == NULL && tsen_cfg->regs_base == NULL) {
+		ERROR("initial thermal sensor configuration is missing\n");
+		return -1;
+	}
+	base = (struct tsen_regs *)tsen_cfg->regs_base;
+
+	INFO("initializing thermal sensor\n");
+
+	/* initialize thermal sensor hardware reset once */
+	reg = mmio_read_32((uintptr_t)&base->ext_tsen_ctrl_lsb);
+	reg &= ~THERMAL_SEN_CTRL_LSB_RST_OFFSET; /* de-assert TSEN_RESET */
+	reg |= THERMAL_SEN_CTRL_LSB_EN_MASK; /* set TSEN_EN to 1 */
+	reg |= THERMAL_SEN_CTRL_LSB_STRT_MASK; /* set TSEN_START to 1 */
+	mmio_write_32((uintptr_t)&base->ext_tsen_ctrl_lsb, reg);
+
+	reg = mmio_read_32((uintptr_t)&base->ext_tsen_status);
+	while ((reg & THERMAL_SEN_CTRL_STATS_VALID_MASK) == 0 &&
+	       timeout < THERMAL_TIMEOUT) {
+		udelay(100);
+		reg = mmio_read_32((uintptr_t)&base->ext_tsen_status);
+		timeout++;
+	}
+
+	if ((reg & THERMAL_SEN_CTRL_STATS_VALID_MASK) == 0) {
+		ERROR("thermal sensor is not ready\n");
+		return -1;
+	}
+
+	tsen_cfg->tsen_ready = 1;
+
+	VERBOSE("thermal sensor was initialized\n");
+
+	return 0;
+}
+
+static int ext_tsen_read(struct tsen_config *tsen_cfg, int *temp)
+{
+	uint32_t reg;
+	struct tsen_regs *base;
+
+	if (tsen_cfg == NULL && !tsen_cfg->tsen_ready) {
+		ERROR("thermal sensor was not initialized\n");
+		return -1;
+	}
+	base = (struct tsen_regs *)tsen_cfg->regs_base;
+
+	reg = mmio_read_32((uintptr_t)&base->ext_tsen_status);
+	reg = ((reg & THERMAL_SEN_CTRL_STATS_TEMP_OUT_MASK) >>
+		THERMAL_SEN_CTRL_STATS_TEMP_OUT_OFFSET);
+
+	/*
+	 * TSEN output format is signed as a 2s complement number
+	 * ranging from-512 to +511. when MSB is set, need to
+	 * calculate the complement number
+	 */
+	if (reg >= THERMAL_SEN_OUTPUT_MSB)
+		reg -= THERMAL_SEN_OUTPUT_COMP;
+
+	if (tsen_cfg->tsen_divisor == 0) {
+		ERROR("thermal sensor divisor cannot be zero\n");
+		return -1;
+	}
+
+	*temp = ((tsen_cfg->tsen_gain * ((int)reg)) +
+		 tsen_cfg->tsen_offset) / tsen_cfg->tsen_divisor;
+
+	return 0;
+}
+
+static struct tsen_config tsen_cfg = {
+	.tsen_offset = 153400,
+	.tsen_gain = 425,
+	.tsen_divisor = 1000,
+	.tsen_ready = 0,
+	.regs_base = (void *)MVEBU_AP_EXT_TSEN_BASE,
+	.ptr_tsen_probe = ext_tsen_probe,
+	.ptr_tsen_read = ext_tsen_read
+};
+
+struct tsen_config *marvell_thermal_config_get(void)
+{
+	return &tsen_cfg;
+}

plat/marvell/common/aarch64/marvell_common.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <mmio.h>
+#include <plat_marvell.h>
+#include <platform_def.h>
+#include <xlat_tables.h>
+
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak plat_get_ns_image_entrypoint
+#pragma weak plat_marvell_get_mmap
+
+/*
+ * Set up the page tables for the generic and platform-specific memory regions.
+ * The extents of the generic memory regions are specified by the function
+ * arguments and consist of:
+ * - Trusted SRAM seen by the BL image;
+ * - Code section;
+ * - Read-only data section;
+ * - Coherent memory region, if applicable.
+ */
+void marvell_setup_page_tables(uintptr_t total_base,
+			       size_t total_size,
+			       uintptr_t code_start,
+			       uintptr_t code_limit,
+			       uintptr_t rodata_start,
+			       uintptr_t rodata_limit
+#if USE_COHERENT_MEM
+			       ,
+			       uintptr_t coh_start,
+			       uintptr_t coh_limit
+#endif
+			   )
+{
+	/*
+	 * Map the Trusted SRAM with appropriate memory attributes.
+	 * Subsequent mappings will adjust the attributes for specific regions.
+	 */
+	VERBOSE("Trusted SRAM seen by this BL image: %p - %p\n",
+		(void *) total_base, (void *) (total_base + total_size));
+	mmap_add_region(total_base, total_base,
+			total_size,
+			MT_MEMORY | MT_RW | MT_SECURE);
+
+	/* Re-map the code section */
+	VERBOSE("Code region: %p - %p\n",
+		(void *) code_start, (void *) code_limit);
+	mmap_add_region(code_start, code_start,
+			code_limit - code_start,
+			MT_CODE | MT_SECURE);
+
+	/* Re-map the read-only data section */
+	VERBOSE("Read-only data region: %p - %p\n",
+		(void *) rodata_start, (void *) rodata_limit);
+	mmap_add_region(rodata_start, rodata_start,
+			rodata_limit - rodata_start,
+			MT_RO_DATA | MT_SECURE);
+
+#if USE_COHERENT_MEM
+	/* Re-map the coherent memory region */
+	VERBOSE("Coherent region: %p - %p\n",
+		(void *) coh_start, (void *) coh_limit);
+	mmap_add_region(coh_start, coh_start,
+			coh_limit - coh_start,
+			MT_DEVICE | MT_RW | MT_SECURE);
+#endif
+
+	/* Now (re-)map the platform-specific memory regions */
+	mmap_add(plat_marvell_get_mmap());
+
+	/* Create the page tables to reflect the above mappings */
+	init_xlat_tables();
+}
+
+unsigned long plat_get_ns_image_entrypoint(void)
+{
+	return PLAT_MARVELL_NS_IMAGE_OFFSET;
+}
+
+/*****************************************************************************
+ * Gets SPSR for BL32 entry
+ *****************************************************************************
+ */
+uint32_t marvell_get_spsr_for_bl32_entry(void)
+{
+	/*
+	 * The Secure Payload Dispatcher service is responsible for
+	 * setting the SPSR prior to entry into the BL32 image.
+	 */
+	return 0;
+}
+
+/*****************************************************************************
+ * Gets SPSR for BL33 entry
+ *****************************************************************************
+ */
+uint32_t marvell_get_spsr_for_bl33_entry(void)
+{
+	unsigned long el_status;
+	unsigned int mode;
+	uint32_t spsr;
+
+	/* Figure out what mode we enter the non-secure world in */
+	el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+	el_status &= ID_AA64PFR0_ELX_MASK;
+
+	mode = (el_status) ? MODE_EL2 : MODE_EL1;
+
+	/*
+	 * TODO: Consider the possibility of specifying the SPSR in
+	 * the FIP ToC and allowing the platform to have a say as
+	 * well.
+	 */
+	spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+	return spsr;
+}
+
+/*****************************************************************************
+ * Returns ARM platform specific memory map regions.
+ *****************************************************************************
+ */
+const mmap_region_t *plat_marvell_get_mmap(void)
+{
+	return plat_marvell_mmap;
+}
+

plat/marvell/common/aarch64/marvell_helpers.S

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <asm_macros.S>
+#include <cortex_a72.h>
+#include <marvell_def.h>
+#include <platform_def.h>
+#ifndef PLAT_a3700
+#include <ccu.h>
+#include <cache_llc.h>
+#endif
+
+	.weak	plat_marvell_calc_core_pos
+	.weak	plat_my_core_pos
+	.globl	plat_crash_console_init
+	.globl	plat_crash_console_putc
+	.globl	platform_mem_init
+	.globl	disable_mmu_dcache
+	.globl	invalidate_tlb_all
+	.globl	platform_unmap_sram
+	.globl	disable_sram
+	.globl	disable_icache
+	.globl	invalidate_icache_all
+	.globl	marvell_exit_bootrom
+	.globl	ca72_l2_enable_unique_clean
+
+	/* -----------------------------------------------------
+	 *  unsigned int plat_my_core_pos(void)
+	 *  This function uses the plat_marvell_calc_core_pos()
+	 *  definition to get the index of the calling CPU.
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs	x0, mpidr_el1
+	b	plat_marvell_calc_core_pos
+endfunc plat_my_core_pos
+
+	/* -----------------------------------------------------
+	 *  unsigned int plat_marvell_calc_core_pos(uint64_t mpidr)
+	 *  Helper function to calculate the core position.
+	 *  With this function: CorePos = (ClusterId * 2) +
+	 *  				  CoreId
+	 * -----------------------------------------------------
+	 */
+func plat_marvell_calc_core_pos
+	and	x1, x0, #MPIDR_CPU_MASK
+	and	x0, x0, #MPIDR_CLUSTER_MASK
+	add	x0, x1, x0, LSR #7
+	ret
+endfunc plat_marvell_calc_core_pos
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_init(void)
+	 * Function to initialize the crash console
+	 * without a C Runtime to print crash report.
+	 * Clobber list : x0, x1, x2
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_init
+	mov_imm	x0, PLAT_MARVELL_CRASH_UART_BASE
+	mov_imm	x1, PLAT_MARVELL_CRASH_UART_CLK_IN_HZ
+	mov_imm	x2, MARVELL_CONSOLE_BAUDRATE
+	b	console_core_init
+endfunc plat_crash_console_init
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_putc(int c)
+	 * Function to print a character on the crash
+	 * console without a C Runtime.
+	 * Clobber list : x1, x2
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_putc
+	mov_imm	x1, PLAT_MARVELL_CRASH_UART_BASE
+	b	console_core_putc
+endfunc plat_crash_console_putc
+
+	/* ---------------------------------------------------------------------
+	 * We don't need to carry out any memory initialization on ARM
+	 * platforms. The Secure RAM is accessible straight away.
+	 * ---------------------------------------------------------------------
+	 */
+func platform_mem_init
+	ret
+endfunc platform_mem_init
+
+	/* -----------------------------------------------------
+	 * Disable icache, dcache, and MMU
+	 * -----------------------------------------------------
+	 */
+func disable_mmu_dcache
+	mrs	x0, sctlr_el3
+	bic	x0, x0, 0x1		/* M bit - MMU */
+	bic	x0, x0, 0x4		/* C bit - Dcache L1 & L2 */
+	msr	sctlr_el3, x0
+	isb
+	b	mmu_off
+mmu_off:
+	ret
+endfunc disable_mmu_dcache
+
+	/* -----------------------------------------------------
+	 * Disable all TLB entries
+	 * -----------------------------------------------------
+	 */
+func invalidate_tlb_all
+	tlbi	alle3
+	dsb	sy
+	isb
+	ret
+endfunc invalidate_tlb_all
+
+	/* -----------------------------------------------------
+	 * Disable the i cache
+	 * -----------------------------------------------------
+	 */
+func disable_icache
+	mrs 	x0, sctlr_el3
+	bic	x0, x0, 0x1000	/* I bit - Icache L1 & L2 */
+	msr	sctlr_el3, x0
+	isb
+	ret
+endfunc disable_icache
+
+	/* -----------------------------------------------------
+	 * Disable all of the i caches
+	 * -----------------------------------------------------
+	 */
+func invalidate_icache_all
+	ic	ialluis
+	isb	sy
+	ret
+endfunc invalidate_icache_all
+
+	/* -----------------------------------------------------
+	 * Clear the SRAM enabling bit to unmap SRAM
+	 * -----------------------------------------------------
+	 */
+func platform_unmap_sram
+	ldr	x0, =CCU_SRAM_WIN_CR
+	str	wzr, [x0]
+	ret
+endfunc platform_unmap_sram
+
+	/* -----------------------------------------------------
+	 * Disable the SRAM
+	 * -----------------------------------------------------
+	 */
+func disable_sram
+	/* Disable the line lockings. They must be disabled expictly
+	 * or the OS will have problems using the cache */
+	ldr	x1, =MASTER_LLC_TC0_LOCK
+	str	wzr, [x1]
+
+	/* Invalidate all ways */
+	ldr	w1, =LLC_WAY_MASK
+	ldr	x0, =MASTER_L2X0_INV_WAY
+	str	w1, [x0]
+
+	/* Finally disable LLC */
+	ldr	x0, =MASTER_LLC_CTRL
+	str	wzr, [x0]
+
+	ret
+endfunc disable_sram
+
+	/* -----------------------------------------------------
+	 * Operation when exit bootROM:
+	 * Disable the MMU
+	 * Disable and invalidate the dcache
+	 * Unmap and disable the SRAM
+	 * Disable and invalidate the icache
+	 * -----------------------------------------------------
+	 */
+func marvell_exit_bootrom
+	/* Save the system restore address */
+	mov	x28, x0
+
+	/* Close the caches and MMU */
+	bl	disable_mmu_dcache
+
+	/*
+	 * There is nothing important in the caches now,
+	 * so invalidate them instead of cleaning.
+	 */
+	adr	x0, __RW_START__
+	adr	x1, __RW_END__
+	sub	x1, x1, x0
+	bl	inv_dcache_range
+	bl	invalidate_tlb_all
+
+	/*
+	 * Clean the memory mapping of SRAM
+	 * the DDR mapping will remain to enable boot image to execute
+	 */
+	bl	platform_unmap_sram
+
+	/* Disable the SRAM */
+	bl	disable_sram
+
+	/* Disable and invalidate icache */
+	bl	disable_icache
+	bl	invalidate_icache_all
+
+	mov	x0, x28
+	br	x0
+endfunc marvell_exit_bootrom
+
+	/*
+	 * Enable L2 UniqueClean evictions with data
+	 */
+func ca72_l2_enable_unique_clean
+
+	mrs	x0, CORTEX_A72_L2ACTLR_EL1
+	orr	x0, x0, #CORTEX_A72_L2ACTLR_ENABLE_UNIQUE_CLEAN
+	msr	CORTEX_A72_L2ACTLR_EL1, x0
+
+	ret
+endfunc ca72_l2_enable_unique_clean

plat/marvell/common/marvell_bl1_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <bl1.h>
+#include <bl1/bl1_private.h>
+#include <bl_common.h>
+#include <console.h>
+#include <debug.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <plat_marvell.h>
+#include <sp805.h>
+
+/* Weak definitions may be overridden in specific Marvell standard platform */
+#pragma weak bl1_early_platform_setup
+#pragma weak bl1_plat_arch_setup
+#pragma weak bl1_platform_setup
+#pragma weak bl1_plat_sec_mem_layout
+
+
+/* Data structure which holds the extents of the RAM for BL1*/
+static meminfo_t bl1_ram_layout;
+
+meminfo_t *bl1_plat_sec_mem_layout(void)
+{
+	return &bl1_ram_layout;
+}
+
+/*
+ * BL1 specific platform actions shared between Marvell standard platforms.
+ */
+void marvell_bl1_early_platform_setup(void)
+{
+	const size_t bl1_size = BL1_RAM_LIMIT - BL1_RAM_BASE;
+
+	/* Initialize the console to provide early debug support */
+	console_init(PLAT_MARVELL_BOOT_UART_BASE,
+		     PLAT_MARVELL_BOOT_UART_CLK_IN_HZ,
+		     MARVELL_CONSOLE_BAUDRATE);
+
+	/* Allow BL1 to see the whole Trusted RAM */
+	bl1_ram_layout.total_base = MARVELL_BL_RAM_BASE;
+	bl1_ram_layout.total_size = MARVELL_BL_RAM_SIZE;
+
+	/* Calculate how much RAM BL1 is using and how much remains free */
+	bl1_ram_layout.free_base = MARVELL_BL_RAM_BASE;
+	bl1_ram_layout.free_size = MARVELL_BL_RAM_SIZE;
+	reserve_mem(&bl1_ram_layout.free_base,
+		    &bl1_ram_layout.free_size,
+		    BL1_RAM_BASE,
+		    bl1_size);
+}
+
+void bl1_early_platform_setup(void)
+{
+	marvell_bl1_early_platform_setup();
+}
+
+/*
+ * Perform the very early platform specific architecture setup shared between
+ * MARVELL standard platforms. This only does basic initialization. Later
+ * architectural setup (bl1_arch_setup()) does not do anything platform
+ * specific.
+ */
+void marvell_bl1_plat_arch_setup(void)
+{
+	marvell_setup_page_tables(bl1_ram_layout.total_base,
+				  bl1_ram_layout.total_size,
+				  BL1_RO_BASE,
+				  BL1_RO_LIMIT,
+				  BL1_RO_DATA_BASE,
+				  BL1_RO_DATA_END
+#if USE_COHERENT_MEM
+				, BL_COHERENT_RAM_BASE,
+				  BL_COHERENT_RAM_END
+#endif
+				);
+	enable_mmu_el3(0);
+}
+
+void bl1_plat_arch_setup(void)
+{
+	marvell_bl1_plat_arch_setup();
+}
+
+/*
+ * Perform the platform specific architecture setup shared between
+ * MARVELL standard platforms.
+ */
+void marvell_bl1_platform_setup(void)
+{
+	/* Initialise the IO layer and register platform IO devices */
+	plat_marvell_io_setup();
+}
+
+void bl1_platform_setup(void)
+{
+	marvell_bl1_platform_setup();
+}
+
+void bl1_plat_prepare_exit(entry_point_info_t *ep_info)
+{
+#ifdef EL3_PAYLOAD_BASE
+	/*
+	 * Program the EL3 payload's entry point address into the CPUs mailbox
+	 * in order to release secondary CPUs from their holding pen and make
+	 * them jump there.
+	 */
+	marvell_program_trusted_mailbox(ep_info->pc);
+	dsbsy();
+	sev();
+#endif
+}

plat/marvell/common/marvell_bl2_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <arch_helpers.h>
+#include <bl_common.h>
+#include <console.h>
+#include <marvell_def.h>
+#include <platform_def.h>
+#include <plat_marvell.h>
+#include <string.h>
+
+/* Data structure which holds the extents of the trusted SRAM for BL2 */
+static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
+
+
+/*****************************************************************************
+ * This structure represents the superset of information that is passed to
+ * BL31, e.g. while passing control to it from BL2, bl31_params
+ * and other platform specific parameters
+ *****************************************************************************
+ */
+typedef struct bl2_to_bl31_params_mem {
+	bl31_params_t bl31_params;
+	image_info_t bl31_image_info;
+	image_info_t bl32_image_info;
+	image_info_t bl33_image_info;
+	entry_point_info_t bl33_ep_info;
+	entry_point_info_t bl32_ep_info;
+	entry_point_info_t bl31_ep_info;
+} bl2_to_bl31_params_mem_t;
+
+
+static bl2_to_bl31_params_mem_t bl31_params_mem;
+
+
+/* Weak definitions may be overridden in specific MARVELL standard platform */
+#pragma weak bl2_early_platform_setup
+#pragma weak bl2_platform_setup
+#pragma weak bl2_plat_arch_setup
+#pragma weak bl2_plat_sec_mem_layout
+#pragma weak bl2_plat_get_bl31_params
+#pragma weak bl2_plat_get_bl31_ep_info
+#pragma weak bl2_plat_flush_bl31_params
+#pragma weak bl2_plat_set_bl31_ep_info
+#pragma weak bl2_plat_get_scp_bl2_meminfo
+#pragma weak bl2_plat_get_bl32_meminfo
+#pragma weak bl2_plat_set_bl32_ep_info
+#pragma weak bl2_plat_get_bl33_meminfo
+#pragma weak bl2_plat_set_bl33_ep_info
+
+
+meminfo_t *bl2_plat_sec_mem_layout(void)
+{
+	return &bl2_tzram_layout;
+}
+
+/*****************************************************************************
+ * This function assigns a pointer to the memory that the platform has kept
+ * aside to pass platform specific and trusted firmware related information
+ * to BL31. This memory is allocated by allocating memory to
+ * bl2_to_bl31_params_mem_t structure which is a superset of all the
+ * structure whose information is passed to BL31
+ * NOTE: This function should be called only once and should be done
+ * before generating params to BL31
+ *****************************************************************************
+ */
+bl31_params_t *bl2_plat_get_bl31_params(void)
+{
+	bl31_params_t *bl2_to_bl31_params;
+
+	/*
+	 * Initialise the memory for all the arguments that needs to
+	 * be passed to BL31
+	 */
+	memset(&bl31_params_mem, 0, sizeof(bl2_to_bl31_params_mem_t));
+
+	/* Assign memory for TF related information */
+	bl2_to_bl31_params = &bl31_params_mem.bl31_params;
+	SET_PARAM_HEAD(bl2_to_bl31_params, PARAM_BL31, VERSION_1, 0);
+
+	/* Fill BL31 related information */
+	bl2_to_bl31_params->bl31_image_info = &bl31_params_mem.bl31_image_info;
+	SET_PARAM_HEAD(bl2_to_bl31_params->bl31_image_info, PARAM_IMAGE_BINARY,
+		VERSION_1, 0);
+
+	/* Fill BL32 related information if it exists */
+#if BL32_BASE
+	bl2_to_bl31_params->bl32_ep_info = &bl31_params_mem.bl32_ep_info;
+	SET_PARAM_HEAD(bl2_to_bl31_params->bl32_ep_info, PARAM_EP,
+		VERSION_1, 0);
+	bl2_to_bl31_params->bl32_image_info = &bl31_params_mem.bl32_image_info;
+	SET_PARAM_HEAD(bl2_to_bl31_params->bl32_image_info, PARAM_IMAGE_BINARY,
+		VERSION_1, 0);
+#endif
+
+	/* Fill BL33 related information */
+	bl2_to_bl31_params->bl33_ep_info = &bl31_params_mem.bl33_ep_info;
+	SET_PARAM_HEAD(bl2_to_bl31_params->bl33_ep_info,
+		PARAM_EP, VERSION_1, 0);
+
+	/* BL33 expects to receive the primary CPU MPID (through x0) */
+	bl2_to_bl31_params->bl33_ep_info->args.arg0 = 0xffff & read_mpidr();
+
+	bl2_to_bl31_params->bl33_image_info = &bl31_params_mem.bl33_image_info;
+	SET_PARAM_HEAD(bl2_to_bl31_params->bl33_image_info, PARAM_IMAGE_BINARY,
+		VERSION_1, 0);
+
+	return bl2_to_bl31_params;
+}
+
+/* Flush the TF params and the TF plat params */
+void bl2_plat_flush_bl31_params(void)
+{
+	flush_dcache_range((unsigned long)&bl31_params_mem,
+			sizeof(bl2_to_bl31_params_mem_t));
+}
+
+/*****************************************************************************
+ * This function returns a pointer to the shared memory that the platform
+ * has kept to point to entry point information of BL31 to BL2
+ *****************************************************************************
+ */
+struct entry_point_info *bl2_plat_get_bl31_ep_info(void)
+{
+#if DEBUG
+	bl31_params_mem.bl31_ep_info.args.arg1 = MARVELL_BL31_PLAT_PARAM_VAL;
+#endif
+
+	return &bl31_params_mem.bl31_ep_info;
+}
+
+/*****************************************************************************
+ * BL1 has passed the extents of the trusted SRAM that should be visible to BL2
+ * in x0. This memory layout is sitting at the base of the free trusted SRAM.
+ * Copy it to a safe location before its reclaimed by later BL2 functionality.
+ *****************************************************************************
+ */
+void marvell_bl2_early_platform_setup(meminfo_t *mem_layout)
+{
+	/* Initialize the console to provide early debug support */
+	console_init(PLAT_MARVELL_BOOT_UART_BASE,
+		     PLAT_MARVELL_BOOT_UART_CLK_IN_HZ,
+		     MARVELL_CONSOLE_BAUDRATE);
+
+	/* Setup the BL2 memory layout */
+	bl2_tzram_layout = *mem_layout;
+
+	/* Initialise the IO layer and register platform IO devices */
+	plat_marvell_io_setup();
+}
+
+void bl2_early_platform_setup(meminfo_t *mem_layout)
+{
+	marvell_bl2_early_platform_setup(mem_layout);
+}
+
+void bl2_platform_setup(void)
+{
+	/* Nothing to do */
+}
+
+/*****************************************************************************
+ * Perform the very early platform specific architectural setup here. At the
+ * moment this is only initializes the mmu in a quick and dirty way.
+ *****************************************************************************
+ */
+void marvell_bl2_plat_arch_setup(void)
+{
+	marvell_setup_page_tables(bl2_tzram_layout.total_base,
+				  bl2_tzram_layout.total_size,
+				  BL_CODE_BASE,
+				  BL_CODE_END,
+				  BL_RO_DATA_BASE,
+				  BL_RO_DATA_END
+#if USE_COHERENT_MEM
+				, BL_COHERENT_RAM_BASE,
+				  BL_COHERENT_RAM_END
+#endif
+			      );
+	enable_mmu_el1(0);
+}
+
+void bl2_plat_arch_setup(void)
+{
+	marvell_bl2_plat_arch_setup();
+}
+
+/*****************************************************************************
+ * Populate the extents of memory available for loading SCP_BL2 (if used),
+ * i.e. anywhere in trusted RAM as long as it doesn't overwrite BL2.
+ *****************************************************************************
+ */
+void bl2_plat_get_scp_bl2_meminfo(meminfo_t *scp_bl2_meminfo)
+{
+	*scp_bl2_meminfo = bl2_tzram_layout;
+}
+
+/*****************************************************************************
+ * Before calling this function BL31 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL31 and set SPSR and security state.
+ * On MARVELL std. platforms we only set the security state of the entrypoint
+ *****************************************************************************
+ */
+void bl2_plat_set_bl31_ep_info(image_info_t *bl31_image_info,
+			       entry_point_info_t *bl31_ep_info)
+{
+	SET_SECURITY_STATE(bl31_ep_info->h.attr, SECURE);
+	bl31_ep_info->spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
+					DISABLE_ALL_EXCEPTIONS);
+}
+
+/*****************************************************************************
+ * Populate the extents of memory available for loading BL32
+ *****************************************************************************
+ */
+#ifdef BL32_BASE
+void bl2_plat_get_bl32_meminfo(meminfo_t *bl32_meminfo)
+{
+	/*
+	 * Populate the extents of memory available for loading BL32.
+	 */
+	bl32_meminfo->total_base = BL32_BASE;
+	bl32_meminfo->free_base = BL32_BASE;
+	bl32_meminfo->total_size =
+			(TRUSTED_DRAM_BASE + TRUSTED_DRAM_SIZE) - BL32_BASE;
+	bl32_meminfo->free_size =
+			(TRUSTED_DRAM_BASE + TRUSTED_DRAM_SIZE) - BL32_BASE;
+}
+#endif
+
+/*****************************************************************************
+ * Before calling this function BL32 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL32 and set SPSR and security state.
+ * On MARVELL std. platforms we only set the security state of the entrypoint
+ *****************************************************************************
+ */
+void bl2_plat_set_bl32_ep_info(image_info_t *bl32_image_info,
+			       entry_point_info_t *bl32_ep_info)
+{
+	SET_SECURITY_STATE(bl32_ep_info->h.attr, SECURE);
+	bl32_ep_info->spsr = marvell_get_spsr_for_bl32_entry();
+}
+
+/*****************************************************************************
+ * Before calling this function BL33 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL33 and set SPSR and security state.
+ * On MARVELL std. platforms we only set the security state of the entrypoint
+ *****************************************************************************
+ */
+void bl2_plat_set_bl33_ep_info(image_info_t *image,
+			       entry_point_info_t *bl33_ep_info)
+{
+
+	SET_SECURITY_STATE(bl33_ep_info->h.attr, NON_SECURE);
+	bl33_ep_info->spsr = marvell_get_spsr_for_bl33_entry();
+}
+
+/*****************************************************************************
+ * Populate the extents of memory available for loading BL33
+ *****************************************************************************
+ */
+void bl2_plat_get_bl33_meminfo(meminfo_t *bl33_meminfo)
+{
+	bl33_meminfo->total_base = MARVELL_DRAM_BASE;
+	bl33_meminfo->total_size = MARVELL_DRAM_SIZE;
+	bl33_meminfo->free_base = MARVELL_DRAM_BASE;
+	bl33_meminfo->free_size = MARVELL_DRAM_SIZE;
+}

plat/marvell/common/marvell_bl31_setup.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <arch.h>
+#include <assert.h>
+#include <console.h>
+#include <debug.h>
+#include <marvell_def.h>
+#include <marvell_plat_priv.h>
+#include <plat_marvell.h>
+#include <platform.h>
+
+#ifdef USE_CCI
+#include <cci.h>
+#endif
+
+/*
+ * The next 3 constants identify the extents of the code, RO data region and the
+ * limit of the BL31 image.  These addresses are used by the MMU setup code and
+ * therefore they must be page-aligned.  It is the responsibility of the linker
+ * script to ensure that __RO_START__, __RO_END__ & __BL31_END__ linker symbols
+ * refer to page-aligned addresses.
+ */
+#define BL31_END (unsigned long)(&__BL31_END__)
+
+/*
+ * Placeholder variables for copying the arguments that have been passed to
+ * BL31 from BL2.
+ */
+static entry_point_info_t bl32_image_ep_info;
+static entry_point_info_t bl33_image_ep_info;
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak bl31_early_platform_setup
+#pragma weak bl31_platform_setup
+#pragma weak bl31_plat_arch_setup
+#pragma weak bl31_plat_get_next_image_ep_info
+#pragma weak plat_get_syscnt_freq2
+
+/*****************************************************************************
+ * Return a pointer to the 'entry_point_info' structure of the next image for
+ * the security state specified. BL33 corresponds to the non-secure image type
+ * while BL32 corresponds to the secure image type. A NULL pointer is returned
+ * if the image does not exist.
+ *****************************************************************************
+ */
+entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
+{
+	entry_point_info_t *next_image_info;
+
+	assert(sec_state_is_valid(type));
+	next_image_info = (type == NON_SECURE)
+			? &bl33_image_ep_info : &bl32_image_ep_info;
+
+	return next_image_info;
+}
+
+/*****************************************************************************
+ * Perform any BL31 early platform setup common to ARM standard platforms.
+ * Here is an opportunity to copy parameters passed by the calling EL (S-EL1
+ * in BL2 & S-EL3 in BL1) before they are lost (potentially). This needs to be
+ * done before the MMU is initialized so that the memory layout can be used
+ * while creating page tables. BL2 has flushed this information to memory, so
+ * we are guaranteed to pick up good data.
+ *****************************************************************************
+ */
+void marvell_bl31_early_platform_setup(bl31_params_t *from_bl2,
+				void *plat_params_from_bl2)
+{
+	/* Initialize the console to provide early debug support */
+	console_init(PLAT_MARVELL_BOOT_UART_BASE,
+		     PLAT_MARVELL_BOOT_UART_CLK_IN_HZ,
+		     MARVELL_CONSOLE_BAUDRATE);
+
+#if RESET_TO_BL31
+	/* There are no parameters from BL2 if BL31 is a reset vector */
+	assert(from_bl2 == NULL);
+	assert(plat_params_from_bl2 == NULL);
+
+#ifdef BL32_BASE
+	/* Populate entry point information for BL32 */
+	SET_PARAM_HEAD(&bl32_image_ep_info,
+				PARAM_EP,
+				VERSION_1,
+				0);
+	SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
+	bl32_image_ep_info.pc = BL32_BASE;
+	bl32_image_ep_info.spsr = marvell_get_spsr_for_bl32_entry();
+#endif /* BL32_BASE */
+
+	/* Populate entry point information for BL33 */
+	SET_PARAM_HEAD(&bl33_image_ep_info,
+				PARAM_EP,
+				VERSION_1,
+				0);
+	/*
+	 * Tell BL31 where the non-trusted software image
+	 * is located and the entry state information
+	 */
+	bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
+	bl33_image_ep_info.spsr = marvell_get_spsr_for_bl33_entry();
+	SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
+
+#else
+	/*
+	 * Check params passed from BL2 should not be NULL,
+	 */
+	assert(from_bl2 != NULL);
+	assert(from_bl2->h.type == PARAM_BL31);
+	assert(from_bl2->h.version >= VERSION_1);
+	/*
+	 * In debug builds, we pass a special value in 'plat_params_from_bl2'
+	 * to verify platform parameters from BL2 to BL31.
+	 * In release builds, it's not used.
+	 */
+	assert(((unsigned long long)plat_params_from_bl2) ==
+		MARVELL_BL31_PLAT_PARAM_VAL);
+
+	/*
+	 * Copy BL32 (if populated by BL2) and BL33 entry point information.
+	 * They are stored in Secure RAM, in BL2's address space.
+	 */
+	if (from_bl2->bl32_ep_info)
+		bl32_image_ep_info = *from_bl2->bl32_ep_info;
+	bl33_image_ep_info = *from_bl2->bl33_ep_info;
+#endif
+}
+
+void bl31_early_platform_setup(bl31_params_t *from_bl2,
+				void *plat_params_from_bl2)
+{
+	marvell_bl31_early_platform_setup(from_bl2, plat_params_from_bl2);
+
+#ifdef USE_CCI
+	/*
+	 * Initialize CCI for this cluster during cold boot.
+	 * No need for locks as no other CPU is active.
+	 */
+	plat_marvell_interconnect_init();
+
+	/*
+	 * Enable CCI coherency for the primary CPU's cluster.
+	 * Platform specific PSCI code will enable coherency for other
+	 * clusters.
+	 */
+	plat_marvell_interconnect_enter_coherency();
+#endif
+}
+
+/*****************************************************************************
+ * Perform any BL31 platform setup common to ARM standard platforms
+ *****************************************************************************
+ */
+void marvell_bl31_platform_setup(void)
+{
+	/* Initialize the GIC driver, cpu and distributor interfaces */
+	plat_marvell_gic_driver_init();
+	plat_marvell_gic_init();
+
+	/* For Armada-8k-plus family, the SoC includes more than
+	 * a single AP die, but the default die that boots is AP #0.
+	 * For other families there is only one die (#0).
+	 * Initialize psci arch from die 0
+	 */
+	marvell_psci_arch_init(0);
+}
+
+/*****************************************************************************
+ * Perform any BL31 platform runtime setup prior to BL31 exit common to ARM
+ * standard platforms
+ *****************************************************************************
+ */
+void marvell_bl31_plat_runtime_setup(void)
+{
+	/* Initialize the runtime console */
+	console_init(PLAT_MARVELL_BL31_RUN_UART_BASE,
+		     PLAT_MARVELL_BL31_RUN_UART_CLK_IN_HZ,
+		     MARVELL_CONSOLE_BAUDRATE);
+}
+
+void bl31_platform_setup(void)
+{
+	marvell_bl31_platform_setup();
+}
+
+void bl31_plat_runtime_setup(void)
+{
+	marvell_bl31_plat_runtime_setup();
+}
+
+/*****************************************************************************
+ * Perform the very early platform specific architectural setup shared between
+ * ARM standard platforms. This only does basic initialization. Later
+ * architectural setup (bl31_arch_setup()) does not do anything platform
+ * specific.
+ *****************************************************************************
+ */
+void marvell_bl31_plat_arch_setup(void)
+{
+	marvell_setup_page_tables(BL31_BASE,
+				  BL31_END - BL31_BASE,
+				  BL_CODE_BASE,
+				  BL_CODE_END,
+				  BL_RO_DATA_BASE,
+				  BL_RO_DATA_END
+#if USE_COHERENT_MEM
+				, BL_COHERENT_RAM_BASE,
+				  BL_COHERENT_RAM_END
+#endif
+			);
+
+#if BL31_CACHE_DISABLE
+	enable_mmu_el3(DISABLE_DCACHE);
+	INFO("Cache is disabled in BL3\n");
+#else
+	enable_mmu_el3(0);
+#endif
+}
+
+void bl31_plat_arch_setup(void)
+{
+	marvell_bl31_plat_arch_setup();
+}
+
+unsigned int plat_get_syscnt_freq2(void)
+{
+	return PLAT_REF_CLK_IN_HZ;
+}

plat/marvell/common/marvell_cci.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <cci.h>
+#include <plat_marvell.h>
+
+static const int cci_map[] = {
+	PLAT_MARVELL_CCI_CLUSTER0_SL_IFACE_IX,
+	PLAT_MARVELL_CCI_CLUSTER1_SL_IFACE_IX
+};
+
+/****************************************************************************
+ * The following functions are defined as weak to allow a platform to override
+ * the way ARM CCI driver is initialised and used.
+ ****************************************************************************
+ */
+#pragma weak plat_marvell_interconnect_init
+#pragma weak plat_marvell_interconnect_enter_coherency
+#pragma weak plat_marvell_interconnect_exit_coherency
+
+
+/****************************************************************************
+ * Helper function to initialize ARM CCI driver.
+ ****************************************************************************
+ */
+void plat_marvell_interconnect_init(void)
+{
+	cci_init(PLAT_MARVELL_CCI_BASE, cci_map, ARRAY_SIZE(cci_map));
+}
+
+/****************************************************************************
+ * Helper function to place current master into coherency
+ ****************************************************************************
+ */
+void plat_marvell_interconnect_enter_coherency(void)
+{
+	cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
+}
+
+/****************************************************************************
+ * Helper function to remove current master from coherency
+ ****************************************************************************
+ */
+void plat_marvell_interconnect_exit_coherency(void)
+{
+	cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
+}

plat/marvell/common/marvell_common.mk

+# Copyright (C) 2018 Marvell International Ltd.
+#
+# SPDX-License-Identifier:     BSD-3-Clause
+# https://spdx.org/licenses
+
+MARVELL_PLAT_BASE		:= plat/marvell
+MARVELL_PLAT_INCLUDE_BASE	:= include/plat/marvell
+
+include $(MARVELL_PLAT_BASE)/version.mk
+include $(MARVELL_PLAT_BASE)/marvell.mk
+
+VERSION_STRING			+=(Marvell-${SUBVERSION})
+
+SEPARATE_CODE_AND_RODATA	:= 1
+
+# flag to switch from PLL to ARO
+ARO_ENABLE			:= 0
+$(eval $(call add_define,ARO_ENABLE))
+# Enable/Disable LLC
+LLC_ENABLE			:= 1
+$(eval $(call add_define,LLC_ENABLE))
+
+PLAT_INCLUDES		+=	-I. -Iinclude/common/tbbr		\
+				-I$(MARVELL_PLAT_INCLUDE_BASE)/common	\
+				-I$(MARVELL_PLAT_INCLUDE_BASE)/common/aarch64
+
+
+PLAT_BL_COMMON_SOURCES  +=      lib/xlat_tables/xlat_tables_common.c			\
+				lib/xlat_tables/aarch64/xlat_tables.c			\
+				$(MARVELL_PLAT_BASE)/common/aarch64/marvell_common.c	\
+				$(MARVELL_PLAT_BASE)/common/aarch64/marvell_helpers.S
+
+BL1_SOURCES		+=	drivers/delay_timer/delay_timer.c			\
+				drivers/io/io_fip.c					\
+				drivers/io/io_memmap.c					\
+				drivers/io/io_storage.c					\
+				$(MARVELL_PLAT_BASE)/common/marvell_bl1_setup.c		\
+				$(MARVELL_PLAT_BASE)/common/marvell_io_storage.c	\
+				$(MARVELL_PLAT_BASE)/common/plat_delay_timer.c
+
+ifdef EL3_PAYLOAD_BASE
+# Need the arm_program_trusted_mailbox() function to release secondary CPUs from
+# their holding pen
+endif
+
+BL2_SOURCES		+=	drivers/io/io_fip.c					\
+				drivers/io/io_memmap.c					\
+				drivers/io/io_storage.c					\
+				$(MARVELL_PLAT_BASE)/common/marvell_bl2_setup.c		\
+				$(MARVELL_PLAT_BASE)/common/marvell_io_storage.c
+
+BL31_SOURCES		+=	$(MARVELL_PLAT_BASE)/common/marvell_bl31_setup.c	\
+				$(MARVELL_PLAT_BASE)/common/marvell_pm.c		\
+				$(MARVELL_PLAT_BASE)/common/marvell_topology.c		\
+				plat/common/plat_psci_common.c				\
+				$(MARVELL_PLAT_BASE)/common/plat_delay_timer.c		\
+				drivers/delay_timer/delay_timer.c
+
+# PSCI functionality
+$(eval $(call add_define,CONFIG_ARM64))
+
+# MSS (SCP) build
+ifeq (${MSS_SUPPORT}, 1)
+include $(MARVELL_PLAT_BASE)/common/mss/mss_common.mk
+endif
+
+fip: mrvl_flash

plat/marvell/common/marvell_ddr_info.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <debug.h>
+#include <platform_def.h>
+#include <ddr_info.h>
+#include <mmio.h>
+
+#define DRAM_CH0_MMAP_LOW_REG(iface, cs, base)	\
+	(base + DRAM_CH0_MMAP_LOW_OFFSET + (iface) * 0x10000 + (cs) * 0x8)
+#define DRAM_CH0_MMAP_HIGH_REG(iface, cs, base)	\
+	(DRAM_CH0_MMAP_LOW_REG(iface, cs, base) + 4)
+#define DRAM_CS_VALID_ENABLED_MASK		0x1
+#define DRAM_AREA_LENGTH_OFFS			16
+#define DRAM_AREA_LENGTH_MASK			(0x1f << DRAM_AREA_LENGTH_OFFS)
+#define DRAM_START_ADDRESS_L_OFFS		23
+#define DRAM_START_ADDRESS_L_MASK		\
+					(0x1ff << DRAM_START_ADDRESS_L_OFFS)
+#define DRAM_START_ADDR_HTOL_OFFS		32
+
+#define DRAM_MAX_CS_NUM				2
+
+#define DRAM_CS_ENABLED(iface, cs, base) \
+	(mmio_read_32(DRAM_CH0_MMAP_LOW_REG(iface, cs, base)) & \
+	 DRAM_CS_VALID_ENABLED_MASK)
+#define GET_DRAM_REGION_SIZE_CODE(iface, cs, base) \
+	(mmio_read_32(DRAM_CH0_MMAP_LOW_REG(iface, cs, base)) & \
+	DRAM_AREA_LENGTH_MASK) >> DRAM_AREA_LENGTH_OFFS
+
+/* Mapping between DDR area length and real DDR size is specific and looks like
+ * bellow:
+ * 0 => 384 MB
+ * 1 => 768 MB
+ * 2 => 1536 MB
+ * 3 => 3 GB
+ * 4 => 6 GB
+ *
+ * 7 => 8 MB
+ * 8 => 16 MB
+ * 9 => 32 MB
+ * 10 => 64 MB
+ * 11 => 128 MB
+ * 12 => 256 MB
+ * 13 => 512 MB
+ * 14 => 1 GB
+ * 15 => 2 GB
+ * 16 => 4 GB
+ * 17 => 8 GB
+ * 18 => 16 GB
+ * 19 => 32 GB
+ * 20 => 64 GB
+ * 21 => 128 GB
+ * 22 => 256 GB
+ * 23 => 512 GB
+ * 24 => 1 TB
+ * 25 => 2 TB
+ * 26 => 4 TB
+ *
+ * to calculate real size we need to use two different formulas:
+ * -- GET_DRAM_REGION_SIZE_ODD for values 0-4 (DRAM_REGION_SIZE_ODD)
+ * -- GET_DRAM_REGION_SIZE_EVEN for values 7-26 (DRAM_REGION_SIZE_EVEN)
+ * using mentioned formulas we cover whole mapping between "Area length" value
+ * and real size (see above mapping).
+ */
+#define DRAM_REGION_SIZE_EVEN(C)	(((C) >= 7) && ((C) <= 26))
+#define GET_DRAM_REGION_SIZE_EVEN(C)	((uint64_t)1 << ((C) + 16))
+#define DRAM_REGION_SIZE_ODD(C)		((C) <= 4)
+#define GET_DRAM_REGION_SIZE_ODD(C)	((uint64_t)0x18000000 << (C))
+
+
+uint64_t mvebu_get_dram_size(uint64_t ap_base_addr)
+{
+	uint64_t mem_size = 0;
+	uint8_t region_code;
+	uint8_t cs, iface;
+
+	for (iface = 0; iface < DRAM_MAX_IFACE; iface++) {
+		for (cs = 0; cs < DRAM_MAX_CS_NUM; cs++) {
+
+			/* Exit loop on first disabled DRAM CS */
+			if (!DRAM_CS_ENABLED(iface, cs, ap_base_addr))
+				break;
+
+			/* Decode area length for current CS
+			 * from register value
+			 */
+			region_code =
+				GET_DRAM_REGION_SIZE_CODE(iface, cs,
+							  ap_base_addr);
+
+			if (DRAM_REGION_SIZE_EVEN(region_code)) {
+				mem_size +=
+					GET_DRAM_REGION_SIZE_EVEN(region_code);
+			} else if (DRAM_REGION_SIZE_ODD(region_code)) {
+				mem_size +=
+					GET_DRAM_REGION_SIZE_ODD(region_code);
+			} else {
+				WARN("%s: Invalid mem region (0x%x) CS#%d\n",
+				      __func__, region_code, cs);
+				return 0;
+			}
+		}
+	}
+
+	return mem_size;
+}

plat/marvell/common/marvell_gicv2.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <gicv2.h>
+#include <plat_marvell.h>
+#include <platform.h>
+#include <platform_def.h>
+
+/*
+ * The following functions are defined as weak to allow a platform to override
+ * the way the GICv2 driver is initialised and used.
+ */
+#pragma weak plat_marvell_gic_driver_init
+#pragma weak plat_marvell_gic_init
+
+/*
+ * On a GICv2 system, the Group 1 secure interrupts are treated as Group 0
+ * interrupts.
+ */
+static const interrupt_prop_t marvell_interrupt_props[] = {
+	PLAT_MARVELL_G1S_IRQ_PROPS(GICV2_INTR_GROUP0),
+	PLAT_MARVELL_G0_IRQ_PROPS(GICV2_INTR_GROUP0)
+};
+
+static unsigned int target_mask_array[PLATFORM_CORE_COUNT];
+
+/*
+ * Ideally `marvell_gic_data` structure definition should be a `const` but it is
+ * kept as modifiable for overwriting with different GICD and GICC base when
+ * running on FVP with VE memory map.
+ */
+static gicv2_driver_data_t marvell_gic_data = {
+	.gicd_base = PLAT_MARVELL_GICD_BASE,
+	.gicc_base = PLAT_MARVELL_GICC_BASE,
+	.interrupt_props = marvell_interrupt_props,
+	.interrupt_props_num = ARRAY_SIZE(marvell_interrupt_props),
+	.target_masks = target_mask_array,
+	.target_masks_num = ARRAY_SIZE(target_mask_array),
+};
+
+/*
+ * ARM common helper to initialize the GICv2 only driver.
+ */
+void plat_marvell_gic_driver_init(void)
+{
+	gicv2_driver_init(&marvell_gic_data);
+}
+
+void plat_marvell_gic_init(void)
+{
+	gicv2_distif_init();
+	gicv2_pcpu_distif_init();
+	gicv2_set_pe_target_mask(plat_my_core_pos());
+	gicv2_cpuif_enable();
+}

plat/marvell/common/marvell_io_storage.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <assert.h>
+#include <bl_common.h>		/* For ARRAY_SIZE */
+#include <debug.h>
+#include <firmware_image_package.h>
+#include <io_driver.h>
+#include <io_fip.h>
+#include <io_memmap.h>
+#include <io_storage.h>
+#include <platform_def.h>
+#include <string.h>
+
+/* IO devices */
+static const io_dev_connector_t *fip_dev_con;
+static uintptr_t fip_dev_handle;
+static const io_dev_connector_t *memmap_dev_con;
+static uintptr_t memmap_dev_handle;
+
+static const io_block_spec_t fip_block_spec = {
+	.offset = PLAT_MARVELL_FIP_BASE,
+	.length = PLAT_MARVELL_FIP_MAX_SIZE
+};
+
+static const io_uuid_spec_t bl2_uuid_spec = {
+	.uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2,
+};
+
+static const io_uuid_spec_t scp_bl2_uuid_spec = {
+	.uuid = UUID_SCP_FIRMWARE_SCP_BL2,
+};
+
+static const io_uuid_spec_t bl31_uuid_spec = {
+	.uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31,
+};
+static const io_uuid_spec_t bl32_uuid_spec = {
+	.uuid = UUID_SECURE_PAYLOAD_BL32,
+};
+static const io_uuid_spec_t bl33_uuid_spec = {
+	.uuid = UUID_NON_TRUSTED_FIRMWARE_BL33,
+};
+
+static int open_fip(const uintptr_t spec);
+static int open_memmap(const uintptr_t spec);
+
+struct plat_io_policy {
+	uintptr_t *dev_handle;
+	uintptr_t image_spec;
+	int (*check)(const uintptr_t spec);
+};
+
+/* By default, Marvell platforms load images from the FIP */
+static const struct plat_io_policy policies[] = {
+	[FIP_IMAGE_ID] = {
+		&memmap_dev_handle,
+		(uintptr_t)&fip_block_spec,
+		open_memmap
+	},
+	[BL2_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl2_uuid_spec,
+		open_fip
+	},
+	[SCP_BL2_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&scp_bl2_uuid_spec,
+		open_fip
+	},
+	[BL31_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl31_uuid_spec,
+		open_fip
+	},
+	[BL32_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl32_uuid_spec,
+		open_fip
+	},
+	[BL33_IMAGE_ID] = {
+		&fip_dev_handle,
+		(uintptr_t)&bl33_uuid_spec,
+		open_fip
+	},
+};
+
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak plat_marvell_io_setup
+#pragma weak plat_marvell_get_alt_image_source
+
+
+static int open_fip(const uintptr_t spec)
+{
+	int result;
+	uintptr_t local_image_handle;
+
+	/* See if a Firmware Image Package is available */
+	result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
+	if (result == 0) {
+		result = io_open(fip_dev_handle, spec, &local_image_handle);
+		if (result == 0) {
+			VERBOSE("Using FIP\n");
+			io_close(local_image_handle);
+		}
+	}
+	return result;
+}
+
+
+static int open_memmap(const uintptr_t spec)
+{
+	int result;
+	uintptr_t local_image_handle;
+
+	result = io_dev_init(memmap_dev_handle, (uintptr_t)NULL);
+	if (result == 0) {
+		result = io_open(memmap_dev_handle, spec, &local_image_handle);
+		if (result == 0) {
+			VERBOSE("Using Memmap\n");
+			io_close(local_image_handle);
+		}
+	}
+	return result;
+}
+
+
+void marvell_io_setup(void)
+{
+	int io_result;
+
+	io_result = register_io_dev_fip(&fip_dev_con);
+	assert(io_result == 0);
+
+	io_result = register_io_dev_memmap(&memmap_dev_con);
+	assert(io_result == 0);
+
+	/* Open connections to devices and cache the handles */
+	io_result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
+				&fip_dev_handle);
+	assert(io_result == 0);
+
+	io_result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
+				&memmap_dev_handle);
+	assert(io_result == 0);
+
+	/* Ignore improbable errors in release builds */
+	(void)io_result;
+}
+
+void plat_marvell_io_setup(void)
+{
+	marvell_io_setup();
+}
+
+int plat_marvell_get_alt_image_source(
+	unsigned int image_id __attribute__((unused)),
+	uintptr_t *dev_handle __attribute__((unused)),
+	uintptr_t *image_spec __attribute__((unused)))
+{
+	/* By default do not try an alternative */
+	return -ENOENT;
+}
+
+/*
+ * Return an IO device handle and specification which can be used to access
+ * an image. Use this to enforce platform load policy
+ */
+int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
+			  uintptr_t *image_spec)
+{
+	int result;
+	const struct plat_io_policy *policy;
+
+	assert(image_id < ARRAY_SIZE(policies));
+
+	policy = &policies[image_id];
+	result = policy->check(policy->image_spec);
+	if (result == 0) {
+		*image_spec = policy->image_spec;
+		*dev_handle = *(policy->dev_handle);
+	} else {
+		VERBOSE("Trying alternative IO\n");
+		result = plat_marvell_get_alt_image_source(image_id, dev_handle,
+						       image_spec);
+	}
+
+	return result;
+}
+
+/*
+ * See if a Firmware Image Package is available,
+ * by checking if TOC is valid or not.
+ */
+int marvell_io_is_toc_valid(void)
+{
+	int result;
+
+	result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
+
+	return result == 0;
+}

plat/marvell/common/marvell_pm.c

+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <psci.h>
+#include <marvell_pm.h>
+
+/* Standard ARM platforms are expected to export plat_arm_psci_pm_ops */
+extern const plat_psci_ops_t plat_arm_psci_pm_ops;
+
+/*****************************************************************************
+ * Private function to program the mailbox for a cpu before it is released
+ * from reset. This function assumes that the mail box base is within
+ * the MARVELL_SHARED_RAM region
+ *****************************************************************************
+ */
+void marvell_program_mailbox(uintptr_t address)
+{
+	uintptr_t *mailbox = (void *)PLAT_MARVELL_MAILBOX_BASE;
+
+	/*
+	 * Ensure that the PLAT_MARVELL_MAILBOX_BASE is within
+	 * MARVELL_SHARED_RAM region.
+	 */
+	assert((PLAT_MARVELL_MAILBOX_BASE >= MARVELL_SHARED_RAM_BASE) &&
+	       ((PLAT_MARVELL_MAILBOX_BASE + sizeof(*mailbox)) <=
+	       (MARVELL_SHARED_RAM_BASE + MARVELL_SHARED_RAM_SIZE)));
+
+	mailbox[MBOX_IDX_MAGIC] = MVEBU_MAILBOX_MAGIC_NUM;
+	mailbox[MBOX_IDX_SEC_ADDR] = address;
+
+	/* Flush data cache if the mail box shared RAM is cached */
+#if PLAT_MARVELL_SHARED_RAM_CACHED
+	flush_dcache_range((uintptr_t)PLAT_MARVELL_MAILBOX_BASE +
+			   8 * MBOX_IDX_MAGIC,
+			   2 * sizeof(uint64_t));
+#endif
+}
+
+/*****************************************************************************
+ * The ARM Standard platform definition of platform porting API
+ * `plat_setup_psci_ops`.
+ *****************************************************************************
+ */
+int plat_setup_psci_ops(uintptr_t sec_entrypoint,
+			const plat_psci_ops_t **psci_ops)
+{
+	*psci_ops = &plat_arm_psci_pm_ops;
+
+	/* Setup mailbox with entry point. */
+	marvell_program_mailbox(sec_entrypoint);
+	return 0;
+}