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Diffstat (limited to 'include/configs/ti_armv7_common.h')
| -rw-r--r-- | include/configs/ti_armv7_common.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/include/configs/ti_armv7_common.h b/include/configs/ti_armv7_common.h new file mode 100644 index 0000000..6d15304 --- /dev/null +++ b/include/configs/ti_armv7_common.h @@ -0,0 +1,211 @@ +/* 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. + */ +#define DEFAULT_LINUX_BOOT_ENV \ + "loadaddr=0x82000000\0" \ + "kernel_addr_r=0x82000000\0" \ + "fdtaddr=0x88000000\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 $overlay_files;" \ + "do;" \ + "setenv overlaystring ${overlaystring}'#'${overlay};" \ + "done;\0" \ + "run_fit=bootm ${addr_fit}#${fdtfile}${overlaystring}\0" \ + "loadfit=run args_mmc; run run_fit;\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 !defined(CONFIG_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 +#define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */ + +/* 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. */ +#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 +#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_NAND +#define CONFIG_SPL_NAND_BASE +#define CONFIG_SPL_NAND_DRIVERS +#define CONFIG_SPL_NAND_ECC +#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__ */ |