Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

board: ti: am654: a53: Add initial support for am654

Browse Source 
Add initial support for AM654 based EVM running on A53. Enable
4GB of DDR available on the EVM so that kernel DTB file
can be updated accordingly.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[Andreas: Added 4GB ddr support]
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
lime2-spi
Lokesh Vutla 7 years ago committed by Tom Rini
parent 3980b16137
commit 0911d95263
7 changed files with 273 additions and 0 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 1
      arch/arm/mach-k3/Kconfig
  2. 28
      board/ti/am65x/Kconfig
  3. 5
      board/ti/am65x/MAINTAINERS
  4. 8
      board/ti/am65x/Makefile
  5. 141
      board/ti/am65x/README
  6. 56
      board/ti/am65x/evm.c
  7. 34
      include/configs/am65x_evm.h

1
arch/arm/mach-k3/Kconfig
Unescape View File

@ -47,4 +47,5 @@ config SYS_K3_BOOT_PARAM_TABLE_INDEX
Address at which ROM stores the value which determines if SPL Address at which ROM stores the value which determines if SPL
is booted up by primary boot media or secondary boot media. is booted up by primary boot media or secondary boot media.
source "board/ti/am65x/Kconfig"
endif endif

28
board/ti/am65x/Kconfig
Unescape View File

@ -0,0 +1,28 @@
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
# Lokesh Vutla <lokeshvutla@ti.com>
choice
prompt "K3 AM65 based boards"
optional
config TARGET_AM654_A53_EVM
bool "TI K3 based AM654 EVM running on A53"
select ARM64
select SOC_K3_AM6
endchoice
if TARGET_AM654_A53_EVM
config SYS_BOARD
default "am65x"
config SYS_VENDOR
default "ti"
config SYS_CONFIG_NAME
default "am65x_evm"
endif

5
board/ti/am65x/MAINTAINERS
Unescape View File

@ -0,0 +1,5 @@
AM65x BOARD
M: Lokesh Vutla <lokeshvutla@ti.com>
S: Maintained
F: board/ti/am65x/
F: include/configs/am65x_evm.h

8
board/ti/am65x/Makefile
Unescape View File

@ -0,0 +1,8 @@
#
# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
# Lokesh Vutla <lokeshvutla@ti.com>
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y := evm.o

141
board/ti/am65x/README
Unescape View File

@ -0,0 +1,141 @@
Introduction:
-------------
The AM65x family of SoCs is the first device family from K3 Multicore
SoC architecture, targeted for broad market and industrial control with
aim to meet the complex processing needs of modern embedded products.
The device is built over three domains, each containing specific processing
cores, voltage domains and peripherals:
1. Wake-up (WKUP) domain:
- Device Management and Security Controller (DMSC)
2. Microcontroller (MCU) domain:
- Dual Core ARM Cortex-R5F processor
3. MAIN domain:
- Quad core 64-bit ARM Cortex-A53
More info can be found in TRM: http://www.ti.com/lit/pdf/spruid7
Boot Flow:
----------
On AM65x family devices, ROM supports boot only via MCU(R5). This means that
bootloader has to run on R5 core. In order to meet this constraint, and for
the following reasons the boot flow is designed as mentioned:
1. Need to move away from R5 asap, so that we want to start *any*
firmware on the r5 cores like.... autosar can be loaded to receive CAN
response and other safety operations to be started. This operation is
very time critical and is applicable for all automotive use cases.
2. U-Boot on A53 should start other remotecores for various
applications. This should happen before running Linux.
3. In production boot flow, we might not like to use full u-boot,
instead use Flacon boot flow to reduce boot time.
+------------------------------------------------------------------------+
| DMSC | R5 | A53 |
+------------------------------------------------------------------------+
| +--------+ | | |
| | Reset | | | |
| +--------+ | | |
| : | | |
| +--------+ | +-----------+ | |
| | *rom* |----------|-->| Reset rls | | |
| +--------+ | +-----------+ | |
| | | | : | |
| | rom | | : | |
| |services| | : | |
| | | | +-------------+ | |
| | | | | *R5 rom* | | |
| | | | +-------------+ | |
| | |<---------|---|Load and auth| | |
| | | | | tiboot3.bin | | |
| | | | +-------------+ | |
| | | | : | |
| | | | : | |
| | | | : | |
| | | | +-------------+ | |
| | Start | | | *R5 SPL* | | |
| | System | | +-------------+ | |
| |Firmware|<---------|---|Load and auth| | |
| +--------+ | | sysfw bin | | |
| : | +-------------+ | |
| +---------+ | | DDR | | |
| | *SYSFW* | | | config | | |
| +---------+ | +-------------+ | |
| | |<--------|---| Load | | |
| | | | | tispl.bin | | |
| | | | +-------------+ | |
| | |<--------|---| Start A53 | | |
| | | | | and Reset | | |
| | | | +-------------+ | |
| | | | | +-----------+ |
| | |---------|-----------------------|---->| Reset rls | |
| | | | | +-----------+ |
| | DMSC | | | : |
| |Services | | | +-----------+ |
| | |<--------|-----------------------|---->|*ATF/OPTEE*| |
| | | | | +-----------+ |
| | | | | : |
| | | | | +-----------+ |
| | |<--------|-----------------------|---->| *A53 SPL* | |
| | | | | +-----------+ |
| | | | | | Load | |
| | | | | | u-boot.img| |
| | | | | +-----------+ |
| | | | | : |
| | | | | +-----------+ |
| | |<--------|-----------------------|---->| *u-boot* | |
| | | | | +-----------+ |
| | | | | | prompt | |
| | | | | +-----------+ |
| +---------+ | | |
| | | |
+------------------------------------------------------------------------+
- Here DMSC acts as master and provides all the critical services. R5/A53
requests DMSC to get these services done as shown in the above diagram.
Sources:
--------
1. SYSFW:
System Firmware repo is closed source and the binaries are delivered
to users with NDA. Please contact TI to get the System Firmware
Binary named ti-sci-firmware-am6x.bin that runs on AM65x SoC.
2. ATF:
Tree: https://github.com/ARM-software/arm-trusted-firmware.git
Branch: master
3. OPTEE:
Tree: https://github.com/OP-TEE/optee_os.git
Branch: master
4. U-Boot:
Tree: http://git.denx.de/u-boot.git
Branch: master
Build procedure:
----------------
1. SYSFW:
ROM expects a signed binary that contains the X509 certificate. So
the binary ti-sci-firmware-am6x.bin cannot be uses as-is and needs to be signed.
Contact TI on the procedure to sign the system firmware binary.
2. ATF:
$ make CROSS_COMPILE=aarch64-linux-gnu- ARCH=aarch64 PLAT=k3 TARGET_BOARD=generic SPD=opteed
3. OPTEE:
$ make PLATFORM=k3-am65x CFG_ARM64_core=y
4. U-Boot:
4.1. R5:
TBD.
4.2. A53:
$ make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- am65x_evm_a53_defconfig O=/tmp/a53
$ make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- ATF=<path to ATF dir>/build/k3/generic/release/bl31.bin TEE=<path to OPTEE OS dir>/out/arm-plat-k3/core/tee-pager.bin O=/tmp/a53
Target Images
--------------
Copy the below images to an SD card and boot:
- tiboot3.bin from step 4.1
- tispl.bin, u-boot.img from 4.2

56
board/ti/am65x/evm.c
Unescape View File

@ -0,0 +1,56 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Board specific initialization for AM654 EVM
*
* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
* Lokesh Vutla <lokeshvutla@ti.com>
*
*/
#include <common.h>
#include <asm/io.h>
#include <spl.h>
DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
return 0;
}
int dram_init(void)
{
#ifdef CONFIG_PHYS_64BIT
gd->ram_size = 0x100000000;
#else
gd->ram_size = 0x80000000;
#endif
return 0;
}
ulong board_get_usable_ram_top(ulong total_size)
{
#ifdef CONFIG_PHYS_64BIT
/* Limit RAM used by U-Boot to the DDR low region */
if (gd->ram_top > 0x100000000)
return 0x100000000;
#endif
return gd->ram_top;
}
int dram_init_banksize(void)
{
/* Bank 0 declares the memory available in the DDR low region */
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = 0x80000000;
#ifdef CONFIG_PHYS_64BIT
/* Bank 1 declares the memory available in the DDR high region */
gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
gd->bd->bi_dram[1].size = 0x80000000;
#endif
return 0;
}

34
include/configs/am65x_evm.h
Unescape View File

@ -0,0 +1,34 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Configuration header file for K3 AM654 EVM
*
* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
* Lokesh Vutla <lokeshvutla@ti.com>
*/
#ifndef __CONFIG_AM654_EVM_H
#define __CONFIG_AM654_EVM_H
#include <linux/sizes.h>
#include <config_distro_bootcmd.h>
#define CONFIG_ENV_SIZE (128 << 10)
/* DDR Configuration */
#define CONFIG_SYS_SDRAM_BASE1 0x880000000
/* SPL Loader Configuration */
#ifdef CONFIG_TARGET_AM654_A53_EVM
#define CONFIG_SPL_TEXT_BASE 0x80080000
#endif
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_SPL_MAX_SIZE CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \
CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE - 4)
/* Now for the remaining common defines */
#include <configs/ti_armv7_common.h>
#endif /* __CONFIG_AM654_EVM_H */
Write Preview
Loading…
Cancel
Save