u-boot/arch/arm/mach-k3/include/mach/j721e_hardware.h
Lokesh Vutla 0a704924f3 armv7R: K3: j721e: Add support for boot device detection
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>
2019-07-26 21:49:26 -04:00

49 lines
1.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* K3: J721E SoC definitions, structures etc.
*
* (C) Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
*/
#ifndef __ASM_ARCH_J721E_HARDWARE_H
#define __ASM_ARCH_J721E_HARDWARE_H
#include <config.h>
#define CTRL_MMR0_BASE 0x00100000
#define CTRLMMR_MAIN_DEVSTAT (CTRL_MMR0_BASE + 0x30)
#define MAIN_DEVSTAT_BOOT_MODE_B_MASK BIT(0)
#define MAIN_DEVSTAT_BOOT_MODE_B_SHIFT 0
#define MAIN_DEVSTAT_BKUP_BOOTMODE_MASK GENMASK(3, 1)
#define MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT 1
#define MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK BIT(6)
#define MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT 6
#define WKUP_CTRL_MMR0_BASE 0x43000000
#define MCU_CTRL_MMR0_BASE 0x40f00000
#define CTRLMMR_WKUP_DEVSTAT (WKUP_CTRL_MMR0_BASE + 0x30)
#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK GENMASK(5, 3)
#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT 3
#define WKUP_DEVSTAT_MCU_OMLY_MASK BIT(6)
#define WKUP_DEVSTAT_MCU_ONLY_SHIFT 6
/*
* The CTRL_MMR0 memory space is divided into several equally-spaced
* partitions, so defining the partition size allows us to determine
* register addresses common to those partitions.
*/
#define CTRL_MMR0_PARTITION_SIZE 0x4000
/*
* CTRL_MMR0, WKUP_CTRL_MMR0, and MCU_CTR_MMR0 lock/kick-mechanism
* shared register definitions.
*/
#define CTRLMMR_LOCK_KICK0 0x01008
#define CTRLMMR_LOCK_KICK0_UNLOCK_VAL 0x68ef3490
#define CTRLMMR_LOCK_KICK0_UNLOCKED_MASK BIT(0)
#define CTRLMMR_LOCK_KICK0_UNLOCKED_SHIFT 0
#define CTRLMMR_LOCK_KICK1 0x0100c
#define CTRLMMR_LOCK_KICK1_UNLOCK_VAL 0xd172bc5a
#endif /* __ASM_ARCH_J721E_HARDWARE_H */