mirror of
https://github.com/AsahiLinux/u-boot
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b672e85810
Texas Instruments has begun enabling security settings on the SoCs it produces to instruct ROM and TIFS to begin protecting the Security Management Subsystem (SMS) from other binaries we load into the chip by default. One way ROM and TIFS do this is by enabling firewalls to protect the OCSRAM and HSM RAM regions they're using during bootup. The HSM RAM the wakeup SPL is in is firewalled by TIFS to protect itself from the main domain applications. This means the 'bootindex' value in HSM RAM, left by ROM to indicate if we're using the primary or secondary boot-method, must be moved to OCSRAM (that TIFS has open for us) before we make the jump to the main domain so the main domain's bootloaders can keep access to this information. Signed-off-by: Bryan Brattlof <bb@ti.com>
89 lines
3 KiB
C
89 lines
3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* K3: AM62A SoC definitions, structures etc.
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*
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* Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
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*/
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#ifndef __ASM_ARCH_AM62A_HARDWARE_H
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#define __ASM_ARCH_AM62A_HARDWARE_H
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#include <config.h>
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#ifndef __ASSEMBLY__
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#include <linux/bitops.h>
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#endif
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#define PADCFG_MMR0_BASE 0x04080000
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#define PADCFG_MMR1_BASE 0x000f0000
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#define CTRL_MMR0_BASE 0x00100000
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#define MCU_CTRL_MMR0_BASE 0x04500000
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#define WKUP_CTRL_MMR0_BASE 0x43000000
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#define CTRLMMR_MAIN_DEVSTAT (WKUP_CTRL_MMR0_BASE + 0x30)
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#define MAIN_DEVSTAT_PRIMARY_BOOTMODE_MASK GENMASK(6, 3)
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#define MAIN_DEVSTAT_PRIMARY_BOOTMODE_SHIFT 3
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#define MAIN_DEVSTAT_PRIMARY_BOOTMODE_CFG_MASK GENMASK(9, 7)
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#define MAIN_DEVSTAT_PRIMARY_BOOTMODE_CFG_SHIFT 7
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#define MAIN_DEVSTAT_BACKUP_BOOTMODE_MASK GENMASK(12, 10)
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#define MAIN_DEVSTAT_BACKUP_BOOTMODE_SHIFT 10
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#define MAIN_DEVSTAT_BACKUP_BOOTMODE_CFG_MASK BIT(13)
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#define MAIN_DEVSTAT_BACKUP_BOOTMODE_CFG_SHIFT 13
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/* Primary Bootmode MMC Config macros */
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#define MAIN_DEVSTAT_PRIMARY_MMC_PORT_MASK 0x4
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#define MAIN_DEVSTAT_PRIMARY_MMC_PORT_SHIFT 2
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#define MAIN_DEVSTAT_PRIMARY_MMC_FS_RAW_MASK 0x1
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#define MAIN_DEVSTAT_PRIMARY_MMC_FS_RAW_SHIFT 0
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/* Primary Bootmode USB Config macros */
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#define MAIN_DEVSTAT_PRIMARY_USB_MODE_SHIFT 1
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#define MAIN_DEVSTAT_PRIMARY_USB_MODE_MASK 0x02
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/* Backup Bootmode USB Config macros */
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#define MAIN_DEVSTAT_BACKUP_USB_MODE_MASK 0x01
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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_CTRL_MMR0 lock/kick-mechanism
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* shared register definitions. The same registers are also used for
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* PADCFG_MMR lock/kick-mechanism.
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*/
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#define CTRLMMR_LOCK_KICK0 0x1008
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#define CTRLMMR_LOCK_KICK0_UNLOCK_VAL 0x68ef3490
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#define CTRLMMR_LOCK_KICK1 0x100c
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#define CTRLMMR_LOCK_KICK1_UNLOCK_VAL 0xd172bc5a
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#define MCU_CTRL_LFXOSC_CTRL (MCU_CTRL_MMR0_BASE + 0x8038)
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#define MCU_CTRL_LFXOSC_TRIM (MCU_CTRL_MMR0_BASE + 0x803c)
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#define MCU_CTRL_LFXOSC_32K_DISABLE_VAL BIT(7)
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#define MCU_CTRL_DEVICE_CLKOUT_32K_CTRL (MCU_CTRL_MMR0_BASE + 0x8058)
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#define MCU_CTRL_DEVICE_CLKOUT_LFOSC_SELECT_VAL (0x3)
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#define ROM_ENTENDED_BOOT_DATA_INFO 0x43c3f1e0
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#define K3_BOOT_PARAM_TABLE_INDEX_OCRAM 0x7000F290
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/*
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* During the boot process ROM will kill anything that writes to OCSRAM.
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* This means the wakeup SPL cannot use this region during boot. To
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* complicate things, TIFS will set a firewall between HSM RAM and the
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* main domain.
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*
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* So, during the wakeup SPL, we will need to store the EEPROM data
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* somewhere in HSM RAM, and the main domain's SPL will need to store it
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* somewhere in OCSRAM
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*/
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#ifdef CONFIG_CPU_V7R
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#define TI_SRAM_SCRATCH_BOARD_EEPROM_START 0x43c30000
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#else
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#define TI_SRAM_SCRATCH_BOARD_EEPROM_START 0x70000001
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#endif /* CONFIG_CPU_V7R */
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#endif /* __ASM_ARCH_AM62A_HARDWARE_H */
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