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board: ti: am64x: Add board support for am64x evm

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Add board specific initialization for am64x based boards.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
This commit is contained in:
Dave Gerlach 2021-04-23 11:27:42 -05:00 committed by Lokesh Vutla
parent f721502e3f
commit 33b7258947
5 changed files with 215 additions and 0 deletions
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1
arch/arm/mach-k3/Kconfig
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@ -148,5 +148,6 @@ config SYS_K3_SPL_ATF
after SPL from R5.
source "board/ti/am65x/Kconfig"
source "board/ti/am64x/Kconfig"
source "board/ti/j721e/Kconfig"
endif

53
board/ti/am64x/Kconfig Normal file
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@ -0,0 +1,53 @@
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
choice
prompt "K3 AM64 based boards"
optional
config TARGET_AM642_A53_EVM
bool "TI K3 based AM642 EVM running on A53"
select ARM64
select SOC_K3_AM642
imply BOARD
imply SPL_BOARD
config TARGET_AM642_R5_EVM
bool "TI K3 based AM642 EVM running on R5"
select CPU_V7R
select SYS_THUMB_BUILD
select K3_LOAD_SYSFW
select SOC_K3_AM642
imply SYS_K3_SPL_ATF
endchoice
if TARGET_AM642_A53_EVM
config SYS_BOARD
default "am64x"
config SYS_VENDOR
default "ti"
config SYS_CONFIG_NAME
default "am64x_evm"
endif
if TARGET_AM642_R5_EVM
config SYS_BOARD
default "am64x"
config SYS_VENDOR
default "ti"
config SYS_CONFIG_NAME
default "am64x_evm"
config SPL_LDSCRIPT
default "arch/arm/mach-omap2/u-boot-spl.lds"
endif

8
board/ti/am64x/Makefile Normal file
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@ -0,0 +1,8 @@
#
# Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
# Keerthy <j-keerthy@ti.com>
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y += evm.o

48
board/ti/am64x/evm.c Normal file
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@ -0,0 +1,48 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Board specific initialization for AM642 EVM
*
* Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
* Keerthy <j-keerthy@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)
{
gd->ram_size = 0x80000000;
return 0;
}
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;
gd->ram_size = 0x80000000;
return 0;
}
#if defined(CONFIG_SPL_LOAD_FIT)
int board_fit_config_name_match(const char *name)
{
#if defined(CONFIG_TARGET_AM642_A53_EVM)
if (!strcmp(name, "k3-am642-evm"))
return 0;
#endif
return -1;
}
#endif

105
include/configs/am64x_evm.h Normal file
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@ -0,0 +1,105 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Configuration header file for K3 AM642 SoC family
*
* Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
* Keerthy <j-keerthy@ti.com>
*/
#ifndef __CONFIG_AM642_EVM_H
#define __CONFIG_AM642_EVM_H
#include <linux/sizes.h>
#include <config_distro_bootcmd.h>
#include <environment/ti/mmc.h>
/* DDR Configuration */
#define CONFIG_SYS_SDRAM_BASE1 0x880000000
#ifdef CONFIG_SYS_K3_SPL_ATF
#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "tispl.bin"
#endif
#ifndef CONFIG_CPU_V7R
#define CONFIG_SKIP_LOWLEVEL_INIT
#endif
#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)
/*
* Maximum size in memory allocated to the SPL BSS. Keep it as tight as
* possible (to allow the build to go through), as this directly affects
* our memory footprint. The less we use for BSS the more we have available
* for everything else.
*/
#define CONFIG_SPL_BSS_MAX_SIZE 0x5000
/*
* Link BSS to be within SPL in a dedicated region located near the top of
* the MCU SRAM, this way making it available also before relocation. Note
* that we are not using the actual top of the MCU SRAM as there is a memory
* location filled in by the boot ROM that we want to read out without any
* interference from the C context.
*/
#define CONFIG_SPL_BSS_START_ADDR (CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX -\
CONFIG_SPL_BSS_MAX_SIZE)
/* Configure R5 SPL post-relocation malloc pool in DDR */
#define CONFIG_SYS_SPL_MALLOC_START 0x84000000
#define CONFIG_SYS_SPL_MALLOC_SIZE SZ_16M
#define PARTS_DEFAULT \
/* Linux partitions */ \
"name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}\0"
/* U-Boot general configuration */
#define EXTRA_ENV_AM642_BOARD_SETTINGS \
"default_device_tree=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
"findfdt=" \
"setenv name_fdt ${default_device_tree};" \
"setenv fdtfile ${name_fdt}\0" \
"name_kern=Image\0" \
"console=ttyS2,115200n8\0" \
"args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 " \
"${mtdparts}\0" \
"run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
/* U-Boot MMC-specific configuration */
#define EXTRA_ENV_AM642_BOARD_SETTINGS_MMC \
"boot=mmc\0" \
"mmcdev=1\0" \
"bootpart=1:2\0" \
"bootdir=/boot\0" \
"rd_spec=-\0" \
"init_mmc=run args_all args_mmc\0" \
"get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0" \
"get_overlay_mmc=" \
"fdt address ${fdtaddr};" \
"fdt resize 0x100000;" \
"for overlay in $name_overlays;" \
"do;" \
"load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && " \
"fdt apply ${dtboaddr};" \
"done;\0" \
"get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \
"${bootdir}/${name_kern}\0" \
"get_fit_mmc=load mmc ${bootpart} ${addr_fit} " \
"${bootdir}/${name_fit}\0" \
"partitions=" PARTS_DEFAULT
/* Incorporate settings into the U-Boot environment */
#define CONFIG_EXTRA_ENV_SETTINGS \
DEFAULT_LINUX_BOOT_ENV \
DEFAULT_MMC_TI_ARGS \
EXTRA_ENV_AM642_BOARD_SETTINGS \
EXTRA_ENV_AM642_BOARD_SETTINGS_MMC
/* Now for the remaining common defines */
#include <configs/ti_armv7_common.h>
/* MMC ENV related defines */
#ifdef CONFIG_ENV_IS_IN_MMC
#define CONFIG_SYS_MMC_ENV_DEV 0
#define CONFIG_SYS_MMC_ENV_PART 1
#endif
#endif /* __CONFIG_AM642_EVM_H */