include/configs/ti_armv7_common.h - platform/external/u-boot - Gitiles

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * ti_armv7_common.h
  *
  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
  *
  * The various ARMv7 SoCs from TI all share a number of IP blocks when
  * implementing a given feature.  Rather than define these in every
  * board or even SoC common file, we define a common file to be re-used
  * in all cases.  While technically true that some of these details are
  * configurable at the board design, they are common throughout SoC
  * reference platforms as well as custom designs and become de facto
  * standards.
  */

 #ifndef __CONFIG_TI_ARMV7_COMMON_H__
 #define __CONFIG_TI_ARMV7_COMMON_H__

 /* Support both device trees and ATAGs. */
 #define CONFIG_CMDLINE_TAG
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG

 /*
  * Our DDR memory always starts at 0x80000000 and U-Boot shall have
  * relocated itself to higher in memory by the time this value is used.
  * However, set this to a 32MB offset to allow for easier Linux kernel
  * booting as the default is often used as the kernel load address.
  */
 #define CONFIG_SYS_LOAD_ADDR		0x82000000

 /*
  * We setup defaults based on constraints from the Linux kernel, which should
  * also be safe elsewhere.  We have the default load at 32MB into DDR (for
  * the kernel), FDT above 128MB (the maximum location for the end of the
  * kernel), and the ramdisk 512KB above that (allowing for hopefully never
  * seen large trees).  We say all of this must be within the first 256MB
  * as that will normally be within the kernel lowmem and thus visible via
  * bootm_size and we only run on platforms with 256MB or more of memory.
  *
  * As a temporary storage for DTBO blobs (which should be applied into DTB
  * blob), we use the location 15.5 MB above the ramdisk. If someone wants to
  * use ramdisk bigger than 15.5 MB, then DTBO can be loaded and applied to DTB
  * blob before loading the ramdisk, as DTBO location is only used as a temporary
  * storage, and can be re-used after 'fdt apply' command is done.
  */
 #define DEFAULT_LINUX_BOOT_ENV \
 	"loadaddr=0x82000000\0" \
 	"kernel_addr_r=0x82000000\0" \
 	"fdtaddr=0x88000000\0" \
 	"dtboaddr=0x89000000\0" \
 	"fdt_addr_r=0x88000000\0" \
 	"rdaddr=0x88080000\0" \
 	"ramdisk_addr_r=0x88080000\0" \
 	"scriptaddr=0x80000000\0" \
 	"pxefile_addr_r=0x80100000\0" \
 	"bootm_size=0x10000000\0" \
 	"boot_fdt=try\0"

 #define DEFAULT_FIT_TI_ARGS \
 	"boot_fit=0\0" \
 	"addr_fit=0x90000000\0" \
 	"name_fit=fitImage\0" \
 	"update_to_fit=setenv loadaddr ${addr_fit}; setenv bootfile ${name_fit}\0" \
 	"get_overlaystring=" \
 		"for overlay in $name_overlays;" \
 		"do;" \
 		"setenv overlaystring ${overlaystring}'#'${overlay};" \
 		"done;\0" \
 	"run_fit=bootm ${addr_fit}#${fdtfile}${overlaystring}\0" \

 /*
  * DDR information.  If the CONFIG_NR_DRAM_BANKS is not defined,
  * we say (for simplicity) that we have 1 bank, always, even when
  * we have more.  We always start at 0x80000000, and we place the
  * initial stack pointer in our SRAM. Otherwise, we can define
  * CONFIG_NR_DRAM_BANKS before including this file.
  */
 #define CONFIG_SYS_SDRAM_BASE		0x80000000

 #ifndef CONFIG_SYS_INIT_SP_ADDR
 #define CONFIG_SYS_INIT_SP_ADDR         (NON_SECURE_SRAM_END - \
 						GENERATED_GBL_DATA_SIZE)
 #endif

 /* Timer information. */
 #define CONFIG_SYS_PTV			2	/* Divisor: 2^(PTV+1) => 8 */

 /* If DM_I2C, enable non-DM I2C support */
 #if !CONFIG_IS_ENABLED(DM_I2C)
 #define CONFIG_I2C
 #define CONFIG_SYS_I2C
 #endif

 /*
  * The following are general good-enough settings for U-Boot.  We set a
  * large malloc pool as we generally have a lot of DDR, and we opt for
  * function over binary size in the main portion of U-Boot as this is
  * generally easily constrained later if needed.  We enable the config
  * options that give us information in the environment about what board
  * we are on so we do not need to rely on the command prompt.  We set a
  * console baudrate of 115200 and use the default baud rate table.
  */
 #define CONFIG_SYS_MALLOC_LEN		SZ_32M

 /* As stated above, the following choices are optional. */

 /* We set the max number of command args high to avoid HUSH bugs. */
 #define CONFIG_SYS_MAXARGS		64

 /* Console I/O Buffer Size */
 #define CONFIG_SYS_CBSIZE		1024
 /* Boot Argument Buffer Size */
 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE

 /*
  * When we have SPI, NOR or NAND flash we expect to be making use of
  * mtdparts, both for ease of use in U-Boot and for passing information
  * on to the Linux kernel.
  */

 /*
  * Our platforms make use of SPL to initalize the hardware (primarily
  * memory) enough for full U-Boot to be loaded. We make use of the general
  * SPL framework found under common/spl/.  Given our generally common memory
  * map, we set a number of related defaults and sizes here.
  */
 #if !defined(CONFIG_NOR_BOOT) && \
 	!(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))

 /*
  * We also support Falcon Mode so that the Linux kernel can be booted
  * directly from SPL. This is not currently available on HS devices.
  */

 /*
  * Place the image at the start of the ROM defined image space (per
  * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
  * downloaded image area minus 1KiB for scratch space.  We initalize DRAM as
  * soon as we can so that we can place stack, malloc and BSS there.  We load
  * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
  * with older SPLs).  We have our BSS be placed 2MiB after this, to allow for
  * the default Linux kernel address of 0x80008000 to work with most sized
  * kernels, in the Falcon Mode case.  We have the SPL malloc pool at the end
  * of the BSS area.  We suggest that the stack be placed at 32MiB after the
  * start of DRAM to allow room for all of the above (handled in Kconfig).
  */
 #ifndef CONFIG_SPL_BSS_START_ADDR
 #define CONFIG_SPL_BSS_START_ADDR	0x80a00000
 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000		/* 512 KB */
 #endif
 #ifndef CONFIG_SYS_SPL_MALLOC_START
 #define CONFIG_SYS_SPL_MALLOC_START	(CONFIG_SPL_BSS_START_ADDR + \
 					 CONFIG_SPL_BSS_MAX_SIZE)
 #define CONFIG_SYS_SPL_MALLOC_SIZE	SZ_8M
 #endif
 #ifndef CONFIG_SPL_MAX_SIZE
 #define CONFIG_SPL_MAX_SIZE		(SRAM_SCRATCH_SPACE_ADDR - \
 					 CONFIG_SPL_TEXT_BASE)
 #endif


 /* FAT sd card locations. */
 #ifndef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot.img"
 #endif

 #ifdef CONFIG_SPL_OS_BOOT
 /* FAT */
 #define CONFIG_SPL_FS_LOAD_KERNEL_NAME		"uImage"
 #define CONFIG_SPL_FS_LOAD_ARGS_NAME		"args"

 /* RAW SD card / eMMC */
 #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR	0x1700  /* address 0x2E0000 */
 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR	0x1500  /* address 0x2A0000 */
 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS	0x200   /* 256KiB */
 #endif

 /* General parts of the framework, required. */

 #ifdef CONFIG_MTD_RAW_NAND
 #define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
 #endif
 #endif /* !CONFIG_NOR_BOOT */

 /* Generic Environment Variables */

 #ifdef CONFIG_CMD_NET
 #define NETARGS \
 	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
 		"::off\0" \
 	"nfsopts=nolock\0" \
 	"rootpath=/export/rootfs\0" \
 	"netloadimage=tftp ${loadaddr} ${bootfile}\0" \
 	"netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
 	"netargs=setenv bootargs console=${console} " \
 		"${optargs} " \
 		"root=/dev/nfs " \
 		"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 		"ip=dhcp\0" \
 	"netboot=echo Booting from network ...; " \
 		"setenv autoload no; " \
 		"dhcp; " \
 		"run netloadimage; " \
 		"run netloadfdt; " \
 		"run netargs; " \
 		"bootz ${loadaddr} - ${fdtaddr}\0"
 #else
 #define NETARGS ""
 #endif

 #endif	/* __CONFIG_TI_ARMV7_COMMON_H__ */
	/* SPDX-License-Identifier: GPL-2.0+ */
	/*
	* ti_armv7_common.h
	*
	* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
	*
	* The various ARMv7 SoCs from TI all share a number of IP blocks when
	* implementing a given feature. Rather than define these in every
	* board or even SoC common file, we define a common file to be re-used
	* in all cases. While technically true that some of these details are
	* configurable at the board design, they are common throughout SoC
	* reference platforms as well as custom designs and become de facto
	* standards.
	*/

	#ifndef __CONFIG_TI_ARMV7_COMMON_H__
	#define __CONFIG_TI_ARMV7_COMMON_H__

	/* Support both device trees and ATAGs. */
	#define CONFIG_CMDLINE_TAG
	#define CONFIG_SETUP_MEMORY_TAGS
	#define CONFIG_INITRD_TAG

	/*
	* Our DDR memory always starts at 0x80000000 and U-Boot shall have
	* relocated itself to higher in memory by the time this value is used.
	* However, set this to a 32MB offset to allow for easier Linux kernel
	* booting as the default is often used as the kernel load address.
	*/
	#define CONFIG_SYS_LOAD_ADDR 0x82000000

	/*
	* We setup defaults based on constraints from the Linux kernel, which should
	* also be safe elsewhere. We have the default load at 32MB into DDR (for
	* the kernel), FDT above 128MB (the maximum location for the end of the
	* kernel), and the ramdisk 512KB above that (allowing for hopefully never
	* seen large trees). We say all of this must be within the first 256MB
	* as that will normally be within the kernel lowmem and thus visible via
	* bootm_size and we only run on platforms with 256MB or more of memory.
	*
	* As a temporary storage for DTBO blobs (which should be applied into DTB
	* blob), we use the location 15.5 MB above the ramdisk. If someone wants to
	* use ramdisk bigger than 15.5 MB, then DTBO can be loaded and applied to DTB
	* blob before loading the ramdisk, as DTBO location is only used as a temporary
	* storage, and can be re-used after 'fdt apply' command is done.
	*/
	#define DEFAULT_LINUX_BOOT_ENV \
	"loadaddr=0x82000000\0" \
	"kernel_addr_r=0x82000000\0" \
	"fdtaddr=0x88000000\0" \
	"dtboaddr=0x89000000\0" \
	"fdt_addr_r=0x88000000\0" \
	"rdaddr=0x88080000\0" \
	"ramdisk_addr_r=0x88080000\0" \
	"scriptaddr=0x80000000\0" \
	"pxefile_addr_r=0x80100000\0" \
	"bootm_size=0x10000000\0" \
	"boot_fdt=try\0"

	#define DEFAULT_FIT_TI_ARGS \
	"boot_fit=0\0" \
	"addr_fit=0x90000000\0" \
	"name_fit=fitImage\0" \
	"update_to_fit=setenv loadaddr ${addr_fit}; setenv bootfile ${name_fit}\0" \
	"get_overlaystring=" \
	"for overlay in $name_overlays;" \
	"do;" \
	"setenv overlaystring ${overlaystring}'#'${overlay};" \
	"done;\0" \
	"run_fit=bootm ${addr_fit}#${fdtfile}${overlaystring}\0" \

	/*
	* DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
	* we say (for simplicity) that we have 1 bank, always, even when
	* we have more. We always start at 0x80000000, and we place the
	* initial stack pointer in our SRAM. Otherwise, we can define
	* CONFIG_NR_DRAM_BANKS before including this file.
	*/
	#define CONFIG_SYS_SDRAM_BASE 0x80000000

	#ifndef CONFIG_SYS_INIT_SP_ADDR
	#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
	GENERATED_GBL_DATA_SIZE)
	#endif

	/* Timer information. */
	#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */

	/* If DM_I2C, enable non-DM I2C support */
	#if !CONFIG_IS_ENABLED(DM_I2C)
	#define CONFIG_I2C
	#define CONFIG_SYS_I2C
	#endif

	/*
	* The following are general good-enough settings for U-Boot. We set a
	* large malloc pool as we generally have a lot of DDR, and we opt for
	* function over binary size in the main portion of U-Boot as this is
	* generally easily constrained later if needed. We enable the config
	* options that give us information in the environment about what board
	* we are on so we do not need to rely on the command prompt. We set a
	* console baudrate of 115200 and use the default baud rate table.
	*/
	#define CONFIG_SYS_MALLOC_LEN SZ_32M

	/* As stated above, the following choices are optional. */

	/* We set the max number of command args high to avoid HUSH bugs. */
	#define CONFIG_SYS_MAXARGS 64

	/* Console I/O Buffer Size */
	#define CONFIG_SYS_CBSIZE 1024
	/* Boot Argument Buffer Size */
	#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE

	/*
	* When we have SPI, NOR or NAND flash we expect to be making use of
	* mtdparts, both for ease of use in U-Boot and for passing information
	* on to the Linux kernel.
	*/

	/*
	* Our platforms make use of SPL to initalize the hardware (primarily
	* memory) enough for full U-Boot to be loaded. We make use of the general
	* SPL framework found under common/spl/. Given our generally common memory
	* map, we set a number of related defaults and sizes here.
	*/
	#if !defined(CONFIG_NOR_BOOT) && \
	!(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))

	/*
	* We also support Falcon Mode so that the Linux kernel can be booted
	* directly from SPL. This is not currently available on HS devices.
	*/

	/*
	* Place the image at the start of the ROM defined image space (per
	* CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
	* downloaded image area minus 1KiB for scratch space. We initalize DRAM as
	* soon as we can so that we can place stack, malloc and BSS there. We load
	* U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
	* with older SPLs). We have our BSS be placed 2MiB after this, to allow for
	* the default Linux kernel address of 0x80008000 to work with most sized
	* kernels, in the Falcon Mode case. We have the SPL malloc pool at the end
	* of the BSS area. We suggest that the stack be placed at 32MiB after the
	* start of DRAM to allow room for all of the above (handled in Kconfig).
	*/
	#ifndef CONFIG_SPL_BSS_START_ADDR
	#define CONFIG_SPL_BSS_START_ADDR 0x80a00000
	#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
	#endif
	#ifndef CONFIG_SYS_SPL_MALLOC_START
	#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
	CONFIG_SPL_BSS_MAX_SIZE)
	#define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M
	#endif
	#ifndef CONFIG_SPL_MAX_SIZE
	#define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \
	CONFIG_SPL_TEXT_BASE)
	#endif


	/* FAT sd card locations. */
	#ifndef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
	#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
	#endif

	#ifdef CONFIG_SPL_OS_BOOT
	/* FAT */
	#define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
	#define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"

	/* RAW SD card / eMMC */
	#define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x1700 /* address 0x2E0000 */
	#define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x1500 /* address 0x2A0000 */
	#define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x200 /* 256KiB */
	#endif

	/* General parts of the framework, required. */

	#ifdef CONFIG_MTD_RAW_NAND
	#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
	#endif
	#endif /* !CONFIG_NOR_BOOT */

	/* Generic Environment Variables */

	#ifdef CONFIG_CMD_NET
	#define NETARGS \
	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
	"::off\0" \
	"nfsopts=nolock\0" \
	"rootpath=/export/rootfs\0" \
	"netloadimage=tftp ${loadaddr} ${bootfile}\0" \
	"netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
	"netargs=setenv bootargs console=${console} " \
	"${optargs} " \
	"root=/dev/nfs " \
	"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
	"ip=dhcp\0" \
	"netboot=echo Booting from network ...; " \
	"setenv autoload no; " \
	"dhcp; " \
	"run netloadimage; " \
	"run netloadfdt; " \
	"run netargs; " \
	"bootz ${loadaddr} - ${fdtaddr}\0"
	#else
	#define NETARGS ""
	#endif

	#endif /* __CONFIG_TI_ARMV7_COMMON_H__ */