1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Configuration header file for K3 AM642 SoC family
5 * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
6 * Keerthy <j-keerthy@ti.com>
9 #ifndef __CONFIG_AM642_EVM_H
10 #define __CONFIG_AM642_EVM_H
12 #include <linux/sizes.h>
13 #include <config_distro_bootcmd.h>
14 #include <environment/ti/mmc.h>
15 #include <asm/arch/am64_hardware.h>
16 #include <environment/ti/k3_dfu.h>
18 /* DDR Configuration */
19 #define CONFIG_SYS_SDRAM_BASE1 0x880000000
21 #if defined(CONFIG_TARGET_AM642_A53_EVM)
22 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + SZ_4M)
25 * Link BSS to be within SPL in a dedicated region located near the top of
26 * the MCU SRAM, this way making it available also before relocation. Note
27 * that we are not using the actual top of the MCU SRAM as there is a memory
28 * location filled in by the boot ROM that we want to read out without any
29 * interference from the C context.
31 #define CONFIG_SPL_BSS_START_ADDR (TI_SRAM_SCRATCH_BOARD_EEPROM_START -\
32 CONFIG_SPL_BSS_MAX_SIZE)
33 /* Set the stack right below the SPL BSS section */
34 #define CONFIG_SYS_INIT_SP_ADDR CONFIG_SPL_BSS_START_ADDR
35 /* Configure R5 SPL post-relocation malloc pool in DDR */
36 #define CONFIG_SYS_SPL_MALLOC_START 0x84000000
37 #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_16M
40 #define PARTS_DEFAULT \
41 /* Linux partitions */ \
42 "name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}\0"
44 /* U-Boot general configuration */
45 #define EXTRA_ENV_AM642_BOARD_SETTINGS \
47 "if test $board_name = am64x_gpevm; then " \
48 "setenv fdtfile k3-am642-evm.dtb; fi; " \
49 "if test $board_name = am64x_skevm; then " \
50 "setenv fdtfile k3-am642-sk.dtb; fi;" \
51 "if test $fdtfile = undefined; then " \
52 "echo WARNING: Could not determine device tree to use; fi; \0" \
54 "console=ttyS2,115200n8\0" \
55 "args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 " \
57 "run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
59 /* U-Boot MMC-specific configuration */
60 #define EXTRA_ENV_AM642_BOARD_SETTINGS_MMC \
66 "init_mmc=run args_all args_mmc\0" \
67 "get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
69 "fdt address ${fdtaddr};" \
70 "fdt resize 0x100000;" \
71 "for overlay in $name_overlays;" \
73 "load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && " \
74 "fdt apply ${dtboaddr};" \
76 "get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \
77 "${bootdir}/${name_kern}\0" \
78 "get_fit_mmc=load mmc ${bootpart} ${addr_fit} " \
79 "${bootdir}/${name_fit}\0" \
80 "partitions=" PARTS_DEFAULT
82 #define EXTRA_ENV_AM642_BOARD_SETTING_USBMSC \
83 "args_usb=run finduuid;setenv bootargs console=${console} " \
85 "root=PARTUUID=${uuid} rw " \
86 "rootfstype=${mmcrootfstype}\0" \
87 "init_usb=run args_all args_usb\0" \
88 "get_fdt_usb=load usb ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
90 "fdt address ${fdtaddr};" \
91 "fdt resize 0x100000;" \
92 "for overlay in $name_overlays;" \
94 "load usb ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && " \
95 "fdt apply ${dtboaddr};" \
97 "get_kern_usb=load usb ${bootpart} ${loadaddr} " \
98 "${bootdir}/${name_kern}\0" \
99 "get_fit_usb=load usb ${bootpart} ${addr_fit} " \
100 "${bootdir}/${name_fit}\0" \
101 "usbboot=setenv boot usb;" \
102 "setenv bootpart 0:2;" \
106 "run get_kern_usb;" \
110 #define EXTRA_ENV_DFUARGS \
116 /* Incorporate settings into the U-Boot environment */
117 #define CONFIG_EXTRA_ENV_SETTINGS \
118 DEFAULT_LINUX_BOOT_ENV \
119 DEFAULT_MMC_TI_ARGS \
120 EXTRA_ENV_AM642_BOARD_SETTINGS \
121 EXTRA_ENV_AM642_BOARD_SETTINGS_MMC \
123 EXTRA_ENV_AM642_BOARD_SETTING_USBMSC
125 /* Now for the remaining common defines */
126 #include <configs/ti_armv7_common.h>
128 #define CONFIG_SYS_USB_FAT_BOOT_PARTITION 1
130 #endif /* __CONFIG_AM642_EVM_H */