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0a704924f3
J721E allows for booting from primary or backup boot media. Both media can be chosen individually based on switch settings. ROM looks for a valid image in primary boot media, if not found then looks in backup boot media. In order to pass this boot media information to boot loader, ROM stores a value at a particular address. Add support for reading this information and determining the boot media correctly. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* K3: J721E SoC definitions, structures etc.
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*
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* (C) Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
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*/
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#ifndef __ASM_ARCH_J721E_HARDWARE_H
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#define __ASM_ARCH_J721E_HARDWARE_H
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#include <config.h>
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#define CTRL_MMR0_BASE 0x00100000
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#define CTRLMMR_MAIN_DEVSTAT (CTRL_MMR0_BASE + 0x30)
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#define MAIN_DEVSTAT_BOOT_MODE_B_MASK BIT(0)
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#define MAIN_DEVSTAT_BOOT_MODE_B_SHIFT 0
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#define MAIN_DEVSTAT_BKUP_BOOTMODE_MASK GENMASK(3, 1)
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#define MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT 1
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#define MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK BIT(6)
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#define MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT 6
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#define WKUP_CTRL_MMR0_BASE 0x43000000
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#define MCU_CTRL_MMR0_BASE 0x40f00000
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#define CTRLMMR_WKUP_DEVSTAT (WKUP_CTRL_MMR0_BASE + 0x30)
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#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK GENMASK(5, 3)
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#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT 3
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#define WKUP_DEVSTAT_MCU_OMLY_MASK BIT(6)
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#define WKUP_DEVSTAT_MCU_ONLY_SHIFT 6
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/*
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* The CTRL_MMR0 memory space is divided into several equally-spaced
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* partitions, so defining the partition size allows us to determine
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* register addresses common to those partitions.
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*/
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#define CTRL_MMR0_PARTITION_SIZE 0x4000
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/*
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* CTRL_MMR0, WKUP_CTRL_MMR0, and MCU_CTR_MMR0 lock/kick-mechanism
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* shared register definitions.
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*/
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#define CTRLMMR_LOCK_KICK0 0x01008
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#define CTRLMMR_LOCK_KICK0_UNLOCK_VAL 0x68ef3490
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#define CTRLMMR_LOCK_KICK0_UNLOCKED_MASK BIT(0)
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#define CTRLMMR_LOCK_KICK0_UNLOCKED_SHIFT 0
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#define CTRLMMR_LOCK_KICK1 0x0100c
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#define CTRLMMR_LOCK_KICK1_UNLOCK_VAL 0xd172bc5a
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#endif /* __ASM_ARCH_J721E_HARDWARE_H */
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