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| author | Andreas Dannenberg <dannenberg@ti.com> | 2018-08-27 15:57:12 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-09-11 08:32:55 -0400 |
| commit | c68721d93ac87afe4fd88520147015388cbe3875 (patch) | |
| tree | 0570f696a225a9bc1f3c40c9dd4f2eacb6fdec44 /arch/arm/mach-k3/include/mach | |
| parent | e00646099f7219328ed61882211fdb95f380028c (diff) | |
| download | u-boot-c68721d93ac87afe4fd88520147015388cbe3875.zip u-boot-c68721d93ac87afe4fd88520147015388cbe3875.tar.gz u-boot-c68721d93ac87afe4fd88520147015388cbe3875.tar.bz2 | |
arm: K3: am654: Unlock control module registers during init
By default the device control module registers are locked,
preventing any writes to its registers.
Unlock those registers as part of the init flow.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch/arm/mach-k3/include/mach')
| -rw-r--r-- | arch/arm/mach-k3/include/mach/am6_hardware.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-k3/include/mach/am6_hardware.h b/arch/arm/mach-k3/include/mach/am6_hardware.h index 1f91840..e4b78f8 100644 --- a/arch/arm/mach-k3/include/mach/am6_hardware.h +++ b/arch/arm/mach-k3/include/mach/am6_hardware.h @@ -17,6 +17,27 @@ #define CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_MASK GENMASK(6, 4) #define CTRLMMR_MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT 4 +#define WKUP_CTRL_MMR0_BASE 0x43000000 +#define MCU_CTRL_MMR0_BASE 0x40f00000 + +/* + * 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 + /* MCU SCRATCHPAD usage */ #define K3_BOOT_PARAM_TABLE_INDEX_VAL CONFIG_SYS_K3_MCU_SCRATCHPAD_BASE |