arch/arm/mach-k3/j721e_init.c - filogic/uboot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * J721E: SoC specific initialization
  *
  * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
  *	Lokesh Vutla <lokeshvutla@ti.com>
  */

 #include <common.h>
 #include <init.h>
 #include <spl.h>
 #include <asm/io.h>
 #include <asm/armv7_mpu.h>
 #include <asm/arch/hardware.h>
 #include "sysfw-loader.h"
 #include "common.h"
 #include <linux/soc/ti/ti_sci_protocol.h>
 #include <dm.h>
 #include <dm/uclass-internal.h>
 #include <dm/pinctrl.h>
 #include <dm/root.h>
 #include <fdtdec.h>
 #include <mmc.h>
 #include <remoteproc.h>

 #ifdef CONFIG_K3_LOAD_SYSFW
 struct fwl_data cbass_hc_cfg0_fwls[] = {
 #if defined(CONFIG_TARGET_J721E_R5_EVM)
 	{ "PCIE0_CFG", 2560, 8 },
 	{ "PCIE1_CFG", 2561, 8 },
 	{ "USB3SS0_CORE", 2568, 4 },
 	{ "USB3SS1_CORE", 2570, 4 },
 	{ "EMMC8SS0_CFG", 2576, 4 },
 	{ "UFS_HCI0_CFG", 2580, 4 },
 	{ "SERDES0", 2584, 1 },
 	{ "SERDES1", 2585, 1 },
 #elif defined(CONFIG_TARGET_J7200_R5_EVM)
 	{ "PCIE1_CFG", 2561, 7 },
 #endif
 }, cbass_hc0_fwls[] = {
 #if defined(CONFIG_TARGET_J721E_R5_EVM)
 	{ "PCIE0_HP", 2528, 24 },
 	{ "PCIE0_LP", 2529, 24 },
 	{ "PCIE1_HP", 2530, 24 },
 	{ "PCIE1_LP", 2531, 24 },
 #endif
 }, cbass_rc_cfg0_fwls[] = {
 	{ "EMMCSD4SS0_CFG", 2380, 4 },
 }, cbass_rc0_fwls[] = {
 	{ "GPMC0", 2310, 8 },
 }, infra_cbass0_fwls[] = {
 	{ "PLL_MMR0", 8, 26 },
 	{ "CTRL_MMR0", 9, 16 },
 }, mcu_cbass0_fwls[] = {
 	{ "MCU_R5FSS0_CORE0", 1024, 4 },
 	{ "MCU_R5FSS0_CORE0_CFG", 1025, 2 },
 	{ "MCU_R5FSS0_CORE1", 1028, 4 },
 	{ "MCU_FSS0_CFG", 1032, 12 },
 	{ "MCU_FSS0_S1", 1033, 8 },
 	{ "MCU_FSS0_S0", 1036, 8 },
 	{ "MCU_PSROM49152X32", 1048, 1 },
 	{ "MCU_MSRAM128KX64", 1050, 8 },
 	{ "MCU_CTRL_MMR0", 1200, 8 },
 	{ "MCU_PLL_MMR0", 1201, 3 },
 	{ "MCU_CPSW0", 1220, 2 },
 }, wkup_cbass0_fwls[] = {
 	{ "WKUP_CTRL_MMR0", 131, 16 },
 };
 #endif

 static void ctrl_mmr_unlock(void)
 {
 	/* Unlock all WKUP_CTRL_MMR0 module registers */
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 4);
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
 	mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);

 	/* Unlock all MCU_CTRL_MMR0 module registers */
 	mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
 	mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
 	mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
 	mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
 	mmr_unlock(MCU_CTRL_MMR0_BASE, 4);

 	/* Unlock all CTRL_MMR0 module registers */
 	mmr_unlock(CTRL_MMR0_BASE, 0);
 	mmr_unlock(CTRL_MMR0_BASE, 1);
 	mmr_unlock(CTRL_MMR0_BASE, 2);
 	mmr_unlock(CTRL_MMR0_BASE, 3);
 	mmr_unlock(CTRL_MMR0_BASE, 5);
 	if (soc_is_j721e())
 		mmr_unlock(CTRL_MMR0_BASE, 6);
 	mmr_unlock(CTRL_MMR0_BASE, 7);
 }

 #if defined(CONFIG_K3_LOAD_SYSFW)
 void k3_mmc_stop_clock(void)
 {
 	if (spl_boot_device() == BOOT_DEVICE_MMC1) {
 		struct mmc *mmc = find_mmc_device(0);

 		if (!mmc)
 			return;

 		mmc->saved_clock = mmc->clock;
 		mmc_set_clock(mmc, 0, true);
 	}
 }

 void k3_mmc_restart_clock(void)
 {
 	if (spl_boot_device() == BOOT_DEVICE_MMC1) {
 		struct mmc *mmc = find_mmc_device(0);

 		if (!mmc)
 			return;

 		mmc_set_clock(mmc, mmc->saved_clock, false);
 	}
 }
 #endif

 /*
  * This uninitialized global variable would normal end up in the .bss section,
  * but the .bss is cleared between writing and reading this variable, so move
  * it to the .data section.
  */
 u32 bootindex __section(".data");
 static struct rom_extended_boot_data bootdata __section(".data");

 static void store_boot_info_from_rom(void)
 {
 	bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
 	memcpy(&bootdata, (uintptr_t *)ROM_EXTENDED_BOOT_DATA_INFO,
 	       sizeof(struct rom_extended_boot_data));
 }

 #ifdef CONFIG_SPL_OF_LIST
 void do_dt_magic(void)
 {
 	int ret, rescan, mmc_dev = -1;
 	static struct mmc *mmc;

 	/* Perform board detection */
 	do_board_detect();

 	/*
 	 * Board detection has been done.
 	 * Let us see if another dtb wouldn't be a better match
 	 * for our board
 	 */
 	if (IS_ENABLED(CONFIG_CPU_V7R)) {
 		ret = fdtdec_resetup(&rescan);
 		if (!ret && rescan) {
 			dm_uninit();
 			dm_init_and_scan(true);
 		}
 	}

 	/*
 	 * Because of multi DTB configuration, the MMC device has
 	 * to be re-initialized after reconfiguring FDT inorder to
 	 * boot from MMC. Do this when boot mode is MMC and ROM has
 	 * not loaded SYSFW.
 	 */
 	switch (spl_boot_device()) {
 	case BOOT_DEVICE_MMC1:
 		mmc_dev = 0;
 		break;
 	case BOOT_DEVICE_MMC2:
 	case BOOT_DEVICE_MMC2_2:
 		mmc_dev = 1;
 		break;
 	}

 	if (mmc_dev > 0 && !is_rom_loaded_sysfw(&bootdata)) {
 		ret = mmc_init_device(mmc_dev);
 		if (!ret) {
 			mmc = find_mmc_device(mmc_dev);
 			if (mmc) {
 				ret = mmc_init(mmc);
 				if (ret) {
 					printf("mmc init failed with error: %d\n", ret);
 				}
 			}
 		}
 	}
 }
 #endif

 void board_init_f(ulong dummy)
 {
 #if defined(CONFIG_K3_J721E_DDRSS) || defined(CONFIG_K3_LOAD_SYSFW)
 	struct udevice *dev;
 	int ret;
 #endif
 	/*
 	 * Cannot delay this further as there is a chance that
 	 * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
 	 */
 	store_boot_info_from_rom();

 	/* Make all control module registers accessible */
 	ctrl_mmr_unlock();

 #ifdef CONFIG_CPU_V7R
 	disable_linefill_optimization();
 	setup_k3_mpu_regions();
 #endif

 	/* Init DM early */
 	spl_early_init();

 #ifdef CONFIG_K3_LOAD_SYSFW
 	/*
 	 * Process pinctrl for the serial0 a.k.a. MCU_UART0 module and continue
 	 * regardless of the result of pinctrl. Do this without probing the
 	 * device, but instead by searching the device that would request the
 	 * given sequence number if probed. The UART will be used by the system
 	 * firmware (SYSFW) image for various purposes and SYSFW depends on us
 	 * to initialize its pin settings.
 	 */
 	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
 	if (!ret)
 		pinctrl_select_state(dev, "default");

 	/*
 	 * Load, start up, and configure system controller firmware. Provide
 	 * the U-Boot console init function to the SYSFW post-PM configuration
 	 * callback hook, effectively switching on (or over) the console
 	 * output.
 	 */
 	k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
 			k3_mmc_stop_clock, k3_mmc_restart_clock);

 #ifdef CONFIG_SPL_OF_LIST
 	do_dt_magic();
 #endif

 	/*
 	 * Force probe of clk_k3 driver here to ensure basic default clock
 	 * configuration is always done.
 	 */
 	if (IS_ENABLED(CONFIG_SPL_CLK_K3)) {
 		ret = uclass_get_device_by_driver(UCLASS_CLK,
 						  DM_DRIVER_GET(ti_clk),
 						  &dev);
 		if (ret)
 			panic("Failed to initialize clk-k3!\n");
 	}

 	/* Prepare console output */
 	preloader_console_init();

 	/* Disable ROM configured firewalls right after loading sysfw */
 	remove_fwl_configs(cbass_hc_cfg0_fwls, ARRAY_SIZE(cbass_hc_cfg0_fwls));
 	remove_fwl_configs(cbass_hc0_fwls, ARRAY_SIZE(cbass_hc0_fwls));
 	remove_fwl_configs(cbass_rc_cfg0_fwls, ARRAY_SIZE(cbass_rc_cfg0_fwls));
 	remove_fwl_configs(cbass_rc0_fwls, ARRAY_SIZE(cbass_rc0_fwls));
 	remove_fwl_configs(infra_cbass0_fwls, ARRAY_SIZE(infra_cbass0_fwls));
 	remove_fwl_configs(mcu_cbass0_fwls, ARRAY_SIZE(mcu_cbass0_fwls));
 	remove_fwl_configs(wkup_cbass0_fwls, ARRAY_SIZE(wkup_cbass0_fwls));
 #else
 	/* Prepare console output */
 	preloader_console_init();
 #endif

 	/* Output System Firmware version info */
 	k3_sysfw_print_ver();

 	/* Perform board detection */
 	do_board_detect();

 #if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
 	ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(k3_avs),
 					  &dev);
 	if (ret)
 		printf("AVS init failed: %d\n", ret);
 #endif

 #if defined(CONFIG_K3_J721E_DDRSS)
 	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
 	if (ret)
 		panic("DRAM init failed: %d\n", ret);
 #endif
 	spl_enable_dcache();
 }

 u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device)
 {
 	switch (boot_device) {
 	case BOOT_DEVICE_MMC1:
 		return (spl_mmc_emmc_boot_partition(mmc) ? MMCSD_MODE_EMMCBOOT : MMCSD_MODE_FS);
 	case BOOT_DEVICE_MMC2:
 		return MMCSD_MODE_FS;
 	default:
 		return MMCSD_MODE_RAW;
 	}
 }

 static u32 __get_backup_bootmedia(u32 main_devstat)
 {
 	u32 bkup_boot = (main_devstat & MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
 			MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;

 	switch (bkup_boot) {
 	case BACKUP_BOOT_DEVICE_USB:
 		return BOOT_DEVICE_DFU;
 	case BACKUP_BOOT_DEVICE_UART:
 		return BOOT_DEVICE_UART;
 	case BACKUP_BOOT_DEVICE_ETHERNET:
 		return BOOT_DEVICE_ETHERNET;
 	case BACKUP_BOOT_DEVICE_MMC2:
 	{
 		u32 port = (main_devstat & MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
 			    MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
 		if (port == 0x0)
 			return BOOT_DEVICE_MMC1;
 		return BOOT_DEVICE_MMC2;
 	}
 	case BACKUP_BOOT_DEVICE_SPI:
 		return BOOT_DEVICE_SPI;
 	case BACKUP_BOOT_DEVICE_I2C:
 		return BOOT_DEVICE_I2C;
 	}

 	return BOOT_DEVICE_RAM;
 }

 static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
 {

 	u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
 			WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;

 	bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
 			BOOT_MODE_B_SHIFT;

 	if (bootmode == BOOT_DEVICE_OSPI || bootmode ==	BOOT_DEVICE_QSPI)
 		bootmode = BOOT_DEVICE_SPI;

 	if (bootmode == BOOT_DEVICE_MMC2) {
 		u32 port = (main_devstat &
 			    MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >>
 			   MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT;
 		if (port == 0x0)
 			bootmode = BOOT_DEVICE_MMC1;
 	}

 	return bootmode;
 }

 u32 spl_spi_boot_bus(void)
 {
 	u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
 	u32 main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
 	u32 bootmode = ((wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
 			WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT) |
 			((main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) << BOOT_MODE_B_SHIFT);

 	return (bootmode == BOOT_DEVICE_QSPI) ? 1 : 0;
 }

 u32 spl_boot_device(void)
 {
 	u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
 	u32 main_devstat;

 	if (wkup_devstat & WKUP_DEVSTAT_MCU_OMLY_MASK) {
 		printf("ERROR: MCU only boot is not yet supported\n");
 		return BOOT_DEVICE_RAM;
 	}

 	/* MAIN CTRL MMR can only be read if MCU ONLY is 0 */
 	main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);

 	if (bootindex == K3_PRIMARY_BOOTMODE)
 		return __get_primary_bootmedia(main_devstat, wkup_devstat);
 	else
 		return __get_backup_bootmedia(main_devstat);
 }
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* J721E: SoC specific initialization
	*
	* Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
	* Lokesh Vutla <lokeshvutla@ti.com>
	*/

	#include <common.h>
	#include <init.h>
	#include <spl.h>
	#include <asm/io.h>
	#include <asm/armv7_mpu.h>
	#include <asm/arch/hardware.h>
	#include "sysfw-loader.h"
	#include "common.h"
	#include <linux/soc/ti/ti_sci_protocol.h>
	#include <dm.h>
	#include <dm/uclass-internal.h>
	#include <dm/pinctrl.h>
	#include <dm/root.h>
	#include <fdtdec.h>
	#include <mmc.h>
	#include <remoteproc.h>

	#ifdef CONFIG_K3_LOAD_SYSFW
	struct fwl_data cbass_hc_cfg0_fwls[] = {
	#if defined(CONFIG_TARGET_J721E_R5_EVM)
	{ "PCIE0_CFG", 2560, 8 },
	{ "PCIE1_CFG", 2561, 8 },
	{ "USB3SS0_CORE", 2568, 4 },
	{ "USB3SS1_CORE", 2570, 4 },
	{ "EMMC8SS0_CFG", 2576, 4 },
	{ "UFS_HCI0_CFG", 2580, 4 },
	{ "SERDES0", 2584, 1 },
	{ "SERDES1", 2585, 1 },
	#elif defined(CONFIG_TARGET_J7200_R5_EVM)
	{ "PCIE1_CFG", 2561, 7 },
	#endif
	}, cbass_hc0_fwls[] = {
	#if defined(CONFIG_TARGET_J721E_R5_EVM)
	{ "PCIE0_HP", 2528, 24 },
	{ "PCIE0_LP", 2529, 24 },
	{ "PCIE1_HP", 2530, 24 },
	{ "PCIE1_LP", 2531, 24 },
	#endif
	}, cbass_rc_cfg0_fwls[] = {
	{ "EMMCSD4SS0_CFG", 2380, 4 },
	}, cbass_rc0_fwls[] = {
	{ "GPMC0", 2310, 8 },
	}, infra_cbass0_fwls[] = {
	{ "PLL_MMR0", 8, 26 },
	{ "CTRL_MMR0", 9, 16 },
	}, mcu_cbass0_fwls[] = {
	{ "MCU_R5FSS0_CORE0", 1024, 4 },
	{ "MCU_R5FSS0_CORE0_CFG", 1025, 2 },
	{ "MCU_R5FSS0_CORE1", 1028, 4 },
	{ "MCU_FSS0_CFG", 1032, 12 },
	{ "MCU_FSS0_S1", 1033, 8 },
	{ "MCU_FSS0_S0", 1036, 8 },
	{ "MCU_PSROM49152X32", 1048, 1 },
	{ "MCU_MSRAM128KX64", 1050, 8 },
	{ "MCU_CTRL_MMR0", 1200, 8 },
	{ "MCU_PLL_MMR0", 1201, 3 },
	{ "MCU_CPSW0", 1220, 2 },
	}, wkup_cbass0_fwls[] = {
	{ "WKUP_CTRL_MMR0", 131, 16 },
	};
	#endif

	static void ctrl_mmr_unlock(void)
	{
	/* Unlock all WKUP_CTRL_MMR0 module registers */
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 4);
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
	mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);

	/* Unlock all MCU_CTRL_MMR0 module registers */
	mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
	mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
	mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
	mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
	mmr_unlock(MCU_CTRL_MMR0_BASE, 4);

	/* Unlock all CTRL_MMR0 module registers */
	mmr_unlock(CTRL_MMR0_BASE, 0);
	mmr_unlock(CTRL_MMR0_BASE, 1);
	mmr_unlock(CTRL_MMR0_BASE, 2);
	mmr_unlock(CTRL_MMR0_BASE, 3);
	mmr_unlock(CTRL_MMR0_BASE, 5);
	if (soc_is_j721e())
	mmr_unlock(CTRL_MMR0_BASE, 6);
	mmr_unlock(CTRL_MMR0_BASE, 7);
	}

	#if defined(CONFIG_K3_LOAD_SYSFW)
	void k3_mmc_stop_clock(void)
	{
	if (spl_boot_device() == BOOT_DEVICE_MMC1) {
	struct mmc *mmc = find_mmc_device(0);

	if (!mmc)
	return;

	mmc->saved_clock = mmc->clock;
	mmc_set_clock(mmc, 0, true);
	}
	}

	void k3_mmc_restart_clock(void)
	{
	if (spl_boot_device() == BOOT_DEVICE_MMC1) {
	struct mmc *mmc = find_mmc_device(0);

	if (!mmc)
	return;

	mmc_set_clock(mmc, mmc->saved_clock, false);
	}
	}
	#endif

	/*
	* This uninitialized global variable would normal end up in the .bss section,
	* but the .bss is cleared between writing and reading this variable, so move
	* it to the .data section.
	*/
	u32 bootindex __section(".data");
	static struct rom_extended_boot_data bootdata __section(".data");

	static void store_boot_info_from_rom(void)
	{
	bootindex = (u32 )(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
	memcpy(&bootdata, (uintptr_t *)ROM_EXTENDED_BOOT_DATA_INFO,
	sizeof(struct rom_extended_boot_data));
	}

	#ifdef CONFIG_SPL_OF_LIST
	void do_dt_magic(void)
	{
	int ret, rescan, mmc_dev = -1;
	static struct mmc *mmc;

	/* Perform board detection */
	do_board_detect();

	/*
	* Board detection has been done.
	* Let us see if another dtb wouldn't be a better match
	* for our board
	*/
	if (IS_ENABLED(CONFIG_CPU_V7R)) {
	ret = fdtdec_resetup(&rescan);
	if (!ret && rescan) {
	dm_uninit();
	dm_init_and_scan(true);
	}
	}

	/*
	* Because of multi DTB configuration, the MMC device has
	* to be re-initialized after reconfiguring FDT inorder to
	* boot from MMC. Do this when boot mode is MMC and ROM has
	* not loaded SYSFW.
	*/
	switch (spl_boot_device()) {
	case BOOT_DEVICE_MMC1:
	mmc_dev = 0;
	break;
	case BOOT_DEVICE_MMC2:
	case BOOT_DEVICE_MMC2_2:
	mmc_dev = 1;
	break;
	}

	if (mmc_dev > 0 && !is_rom_loaded_sysfw(&bootdata)) {
	ret = mmc_init_device(mmc_dev);
	if (!ret) {
	mmc = find_mmc_device(mmc_dev);
	if (mmc) {
	ret = mmc_init(mmc);
	if (ret) {
	printf("mmc init failed with error: %d\n", ret);
	}
	}
	}
	}
	}
	#endif

	void board_init_f(ulong dummy)
	{
	#if defined(CONFIG_K3_J721E_DDRSS) \|\| defined(CONFIG_K3_LOAD_SYSFW)
	struct udevice *dev;
	int ret;
	#endif
	/*
	* Cannot delay this further as there is a chance that
	* K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
	*/
	store_boot_info_from_rom();

	/* Make all control module registers accessible */
	ctrl_mmr_unlock();

	#ifdef CONFIG_CPU_V7R
	disable_linefill_optimization();
	setup_k3_mpu_regions();
	#endif

	/* Init DM early */
	spl_early_init();

	#ifdef CONFIG_K3_LOAD_SYSFW
	/*
	* Process pinctrl for the serial0 a.k.a. MCU_UART0 module and continue
	* regardless of the result of pinctrl. Do this without probing the
	* device, but instead by searching the device that would request the
	* given sequence number if probed. The UART will be used by the system
	* firmware (SYSFW) image for various purposes and SYSFW depends on us
	* to initialize its pin settings.
	*/
	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
	if (!ret)
	pinctrl_select_state(dev, "default");

	/*
	* Load, start up, and configure system controller firmware. Provide
	* the U-Boot console init function to the SYSFW post-PM configuration
	* callback hook, effectively switching on (or over) the console
	* output.
	*/
	k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
	k3_mmc_stop_clock, k3_mmc_restart_clock);

	#ifdef CONFIG_SPL_OF_LIST
	do_dt_magic();
	#endif

	/*
	* Force probe of clk_k3 driver here to ensure basic default clock
	* configuration is always done.
	*/
	if (IS_ENABLED(CONFIG_SPL_CLK_K3)) {
	ret = uclass_get_device_by_driver(UCLASS_CLK,
	DM_DRIVER_GET(ti_clk),
	&dev);
	if (ret)
	panic("Failed to initialize clk-k3!\n");
	}

	/* Prepare console output */
	preloader_console_init();

	/* Disable ROM configured firewalls right after loading sysfw */
	remove_fwl_configs(cbass_hc_cfg0_fwls, ARRAY_SIZE(cbass_hc_cfg0_fwls));
	remove_fwl_configs(cbass_hc0_fwls, ARRAY_SIZE(cbass_hc0_fwls));
	remove_fwl_configs(cbass_rc_cfg0_fwls, ARRAY_SIZE(cbass_rc_cfg0_fwls));
	remove_fwl_configs(cbass_rc0_fwls, ARRAY_SIZE(cbass_rc0_fwls));
	remove_fwl_configs(infra_cbass0_fwls, ARRAY_SIZE(infra_cbass0_fwls));
	remove_fwl_configs(mcu_cbass0_fwls, ARRAY_SIZE(mcu_cbass0_fwls));
	remove_fwl_configs(wkup_cbass0_fwls, ARRAY_SIZE(wkup_cbass0_fwls));
	#else
	/* Prepare console output */
	preloader_console_init();
	#endif

	/* Output System Firmware version info */
	k3_sysfw_print_ver();

	/* Perform board detection */
	do_board_detect();

	#if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
	ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(k3_avs),
	&dev);
	if (ret)
	printf("AVS init failed: %d\n", ret);
	#endif

	#if defined(CONFIG_K3_J721E_DDRSS)
	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
	if (ret)
	panic("DRAM init failed: %d\n", ret);
	#endif
	spl_enable_dcache();
	}

	u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device)
	{
	switch (boot_device) {
	case BOOT_DEVICE_MMC1:
	return (spl_mmc_emmc_boot_partition(mmc) ? MMCSD_MODE_EMMCBOOT : MMCSD_MODE_FS);
	case BOOT_DEVICE_MMC2:
	return MMCSD_MODE_FS;
	default:
	return MMCSD_MODE_RAW;
	}
	}

	static u32 __get_backup_bootmedia(u32 main_devstat)
	{
	u32 bkup_boot = (main_devstat & MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
	MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;

	switch (bkup_boot) {
	case BACKUP_BOOT_DEVICE_USB:
	return BOOT_DEVICE_DFU;
	case BACKUP_BOOT_DEVICE_UART:
	return BOOT_DEVICE_UART;
	case BACKUP_BOOT_DEVICE_ETHERNET:
	return BOOT_DEVICE_ETHERNET;
	case BACKUP_BOOT_DEVICE_MMC2:
	{
	u32 port = (main_devstat & MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
	MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
	if (port == 0x0)
	return BOOT_DEVICE_MMC1;
	return BOOT_DEVICE_MMC2;
	}
	case BACKUP_BOOT_DEVICE_SPI:
	return BOOT_DEVICE_SPI;
	case BACKUP_BOOT_DEVICE_I2C:
	return BOOT_DEVICE_I2C;
	}

	return BOOT_DEVICE_RAM;
	}

	static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
	{

	u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
	WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;

	bootmode \|= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
	BOOT_MODE_B_SHIFT;

	if (bootmode == BOOT_DEVICE_OSPI \|\| bootmode == BOOT_DEVICE_QSPI)
	bootmode = BOOT_DEVICE_SPI;

	if (bootmode == BOOT_DEVICE_MMC2) {
	u32 port = (main_devstat &
	MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >>
	MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT;
	if (port == 0x0)
	bootmode = BOOT_DEVICE_MMC1;
	}

	return bootmode;
	}

	u32 spl_spi_boot_bus(void)
	{
	u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
	u32 main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
	u32 bootmode = ((wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
	WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT) \|
	((main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) << BOOT_MODE_B_SHIFT);

	return (bootmode == BOOT_DEVICE_QSPI) ? 1 : 0;
	}

	u32 spl_boot_device(void)
	{
	u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
	u32 main_devstat;

	if (wkup_devstat & WKUP_DEVSTAT_MCU_OMLY_MASK) {
	printf("ERROR: MCU only boot is not yet supported\n");
	return BOOT_DEVICE_RAM;
	}

	/* MAIN CTRL MMR can only be read if MCU ONLY is 0 */
	main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);

	if (bootindex == K3_PRIMARY_BOOTMODE)
	return __get_primary_bootmedia(main_devstat, wkup_devstat);
	else
	return __get_backup_bootmedia(main_devstat);
	}