1*894c3ad2SThomas Fitzsimmons /* SPDX-License-Identifier: GPL-2.0+ */ 2*894c3ad2SThomas Fitzsimmons /* 3*894c3ad2SThomas Fitzsimmons * (C) Copyright 2018 Cisco Systems, Inc. 4*894c3ad2SThomas Fitzsimmons * 5*894c3ad2SThomas Fitzsimmons * Author: Thomas Fitzsimmons <fitzsim@fitzsim.org> 6*894c3ad2SThomas Fitzsimmons * 7*894c3ad2SThomas Fitzsimmons * Configuration settings for the Broadcom BCMSTB SoC family. 8*894c3ad2SThomas Fitzsimmons */ 9*894c3ad2SThomas Fitzsimmons 10*894c3ad2SThomas Fitzsimmons #ifndef __BCMSTB_H 11*894c3ad2SThomas Fitzsimmons #define __BCMSTB_H 12*894c3ad2SThomas Fitzsimmons 13*894c3ad2SThomas Fitzsimmons #include "version.h" 14*894c3ad2SThomas Fitzsimmons #include <linux/sizes.h> 15*894c3ad2SThomas Fitzsimmons #include <asm/arch/prior_stage.h> 16*894c3ad2SThomas Fitzsimmons 17*894c3ad2SThomas Fitzsimmons /* 18*894c3ad2SThomas Fitzsimmons * Generic board configuration. 19*894c3ad2SThomas Fitzsimmons */ 20*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_GENERIC_BOARD 21*894c3ad2SThomas Fitzsimmons 22*894c3ad2SThomas Fitzsimmons /* 23*894c3ad2SThomas Fitzsimmons * CPU configuration. 24*894c3ad2SThomas Fitzsimmons */ 25*894c3ad2SThomas Fitzsimmons #define CONFIG_SKIP_LOWLEVEL_INIT 26*894c3ad2SThomas Fitzsimmons 27*894c3ad2SThomas Fitzsimmons /* 28*894c3ad2SThomas Fitzsimmons * Memory configuration. 29*894c3ad2SThomas Fitzsimmons * 30*894c3ad2SThomas Fitzsimmons * The prior stage BOLT bootloader sets up memory for us. 31*894c3ad2SThomas Fitzsimmons * 32*894c3ad2SThomas Fitzsimmons * An example boot memory layout after loading everything is: 33*894c3ad2SThomas Fitzsimmons * 34*894c3ad2SThomas Fitzsimmons * 0x0000 8000 vmlinux.bin.gz 35*894c3ad2SThomas Fitzsimmons * : [~31 MiB uncompressed max] 36*894c3ad2SThomas Fitzsimmons * 0x01ef f000 FIT containing signed public key 37*894c3ad2SThomas Fitzsimmons * : [~2 KiB in size] 38*894c3ad2SThomas Fitzsimmons * 0x01f0 0000 DTB copied from prior-stage-provided region 39*894c3ad2SThomas Fitzsimmons * : [~1 MiB max] 40*894c3ad2SThomas Fitzsimmons * 0x0200 0000 FIT containing ramdisk and device tree 41*894c3ad2SThomas Fitzsimmons * : initramfs.cpio.gz 42*894c3ad2SThomas Fitzsimmons * : [~208 MiB uncompressed max, to CMA/bmem low address] 43*894c3ad2SThomas Fitzsimmons * : [~80 MiB compressed max, to PSB low address] 44*894c3ad2SThomas Fitzsimmons * : device tree binary 45*894c3ad2SThomas Fitzsimmons * : [~60 KiB] 46*894c3ad2SThomas Fitzsimmons * 0x0700 0000 Prior stage bootloader (PSB) 47*894c3ad2SThomas Fitzsimmons * : 48*894c3ad2SThomas Fitzsimmons * 0x0761 7000 Prior-stage-provided device tree binary (DTB) 49*894c3ad2SThomas Fitzsimmons * : [~40 KiB in size] 50*894c3ad2SThomas Fitzsimmons * 0x0f00 0000 Contiguous memory allocator (CMA/bmem) low address 51*894c3ad2SThomas Fitzsimmons * : 52*894c3ad2SThomas Fitzsimmons * 0x8010 0000 U-Boot code at ELF load address 53*894c3ad2SThomas Fitzsimmons * : [~500 KiB in size, stripped] 54*894c3ad2SThomas Fitzsimmons * 0xc000 0000 Top of RAM 55*894c3ad2SThomas Fitzsimmons * 56*894c3ad2SThomas Fitzsimmons * Setting gd->relocaddr to CONFIG_SYS_TEXT_BASE in dram_init_banksize 57*894c3ad2SThomas Fitzsimmons * prevents U-Boot from relocating itself when it is run as an ELF 58*894c3ad2SThomas Fitzsimmons * program by the prior stage bootloader. 59*894c3ad2SThomas Fitzsimmons * 60*894c3ad2SThomas Fitzsimmons * We want to keep the ramdisk and FDT in the FIT image in-place, to 61*894c3ad2SThomas Fitzsimmons * accommodate stblinux's bmem and CMA regions. To accomplish this, 62*894c3ad2SThomas Fitzsimmons * we set initrd_high and fdt_high to 0xffffffff, and the load and 63*894c3ad2SThomas Fitzsimmons * entry addresses of the FIT ramdisk entry to 0x0. 64*894c3ad2SThomas Fitzsimmons * 65*894c3ad2SThomas Fitzsimmons * Overwriting the prior stage bootloader causes memory instability, 66*894c3ad2SThomas Fitzsimmons * so the compressed initramfs needs to fit between the load address 67*894c3ad2SThomas Fitzsimmons * and the PSB low address. In BOLT's default configuration this 68*894c3ad2SThomas Fitzsimmons * limits the compressed size of the initramfs to approximately 80 69*894c3ad2SThomas Fitzsimmons * MiB. However, BOLT can be configured to allow loading larger 70*894c3ad2SThomas Fitzsimmons * initramfs images, in which case this limitation is eliminated. 71*894c3ad2SThomas Fitzsimmons */ 72*894c3ad2SThomas Fitzsimmons #define CONFIG_NR_DRAM_BANKS 3 73*894c3ad2SThomas Fitzsimmons 74*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_SDRAM_BASE 0x00000000 75*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_TEXT_BASE 0x80100000 76*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_INIT_RAM_ADDR 0x80200000 77*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_INIT_RAM_SIZE 0x100000 78*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \ 79*894c3ad2SThomas Fitzsimmons CONFIG_SYS_INIT_RAM_SIZE - \ 80*894c3ad2SThomas Fitzsimmons GENERATED_GBL_DATA_SIZE) 81*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_MALLOC_LEN ((10 * 1024) << 10) /* 10 MiB */ 82*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_LOAD_ADDR 0x2000000 83*894c3ad2SThomas Fitzsimmons 84*894c3ad2SThomas Fitzsimmons /* 85*894c3ad2SThomas Fitzsimmons * CONFIG_SYS_LOAD_ADDR - 1 MiB. 86*894c3ad2SThomas Fitzsimmons */ 87*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_FDT_SAVE_ADDRESS 0x1f00000 88*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_CBSIZE 512 89*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_MAXARGS 32 90*894c3ad2SThomas Fitzsimmons 91*894c3ad2SThomas Fitzsimmons /* 92*894c3ad2SThomas Fitzsimmons * Large kernel image bootm configuration. 93*894c3ad2SThomas Fitzsimmons */ 94*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_BOOTM_LEN SZ_64M 95*894c3ad2SThomas Fitzsimmons 96*894c3ad2SThomas Fitzsimmons /* 97*894c3ad2SThomas Fitzsimmons * NS16550 configuration. 98*894c3ad2SThomas Fitzsimmons */ 99*894c3ad2SThomas Fitzsimmons #define V_NS16550_CLK 81000000 100*894c3ad2SThomas Fitzsimmons 101*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_NS16550 102*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_NS16550_SERIAL 103*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_NS16550_REG_SIZE (-4) 104*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_NS16550_CLK V_NS16550_CLK 105*894c3ad2SThomas Fitzsimmons 106*894c3ad2SThomas Fitzsimmons /* 107*894c3ad2SThomas Fitzsimmons * Serial console configuration. 108*894c3ad2SThomas Fitzsimmons */ 109*894c3ad2SThomas Fitzsimmons #define CONFIG_SERIAL3 3 110*894c3ad2SThomas Fitzsimmons 111*894c3ad2SThomas Fitzsimmons #define CONFIG_BAUDRATE 115200 112*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600, \ 113*894c3ad2SThomas Fitzsimmons 115200} 114*894c3ad2SThomas Fitzsimmons 115*894c3ad2SThomas Fitzsimmons /* 116*894c3ad2SThomas Fitzsimmons * Informational display configuration. 117*894c3ad2SThomas Fitzsimmons */ 118*894c3ad2SThomas Fitzsimmons #define CONFIG_REVISION_TAG 119*894c3ad2SThomas Fitzsimmons 120*894c3ad2SThomas Fitzsimmons /* 121*894c3ad2SThomas Fitzsimmons * Command configuration. 122*894c3ad2SThomas Fitzsimmons */ 123*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_ASKENV 124*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_CACHE 125*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_EXT2 126*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_SF 127*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_SPI 128*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_SF_TEST 129*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_MMC 130*894c3ad2SThomas Fitzsimmons 131*894c3ad2SThomas Fitzsimmons /* 132*894c3ad2SThomas Fitzsimmons * Flash configuration. 133*894c3ad2SThomas Fitzsimmons */ 134*894c3ad2SThomas Fitzsimmons #define CONFIG_ST_SMI 135*894c3ad2SThomas Fitzsimmons #define CONFIG_SPI_FLASH_STMICRO 136*894c3ad2SThomas Fitzsimmons #define CONFIG_SPI_FLASH_MACRONIX 137*894c3ad2SThomas Fitzsimmons 138*894c3ad2SThomas Fitzsimmons /* 139*894c3ad2SThomas Fitzsimmons * Filesystem configuration. 140*894c3ad2SThomas Fitzsimmons */ 141*894c3ad2SThomas Fitzsimmons #define CONFIG_DOS_PARTITION 142*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_EXT4 143*894c3ad2SThomas Fitzsimmons #define CONFIG_FS_EXT4 144*894c3ad2SThomas Fitzsimmons #define CONFIG_CMD_FS_GENERIC 145*894c3ad2SThomas Fitzsimmons 146*894c3ad2SThomas Fitzsimmons /* 147*894c3ad2SThomas Fitzsimmons * Environment configuration. 148*894c3ad2SThomas Fitzsimmons */ 149*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_REDUNDAND_ENVIRONMENT 150*894c3ad2SThomas Fitzsimmons 151*894c3ad2SThomas Fitzsimmons #define CONFIG_ENV_IS_IN_SPI_FLASH 1 152*894c3ad2SThomas Fitzsimmons #define CONFIG_ENV_OFFSET 0x1e0000 153*894c3ad2SThomas Fitzsimmons #define CONFIG_ENV_SIZE (64 << 10) /* 64 KiB */ 154*894c3ad2SThomas Fitzsimmons #define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE 155*894c3ad2SThomas Fitzsimmons #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) 156*894c3ad2SThomas Fitzsimmons #define CONFIG_ENV_OVERWRITE 157*894c3ad2SThomas Fitzsimmons 158*894c3ad2SThomas Fitzsimmons /* 159*894c3ad2SThomas Fitzsimmons * Save the prior stage provided DTB. 160*894c3ad2SThomas Fitzsimmons */ 161*894c3ad2SThomas Fitzsimmons #define CONFIG_PREBOOT \ 162*894c3ad2SThomas Fitzsimmons "fdt addr ${fdtcontroladdr};" \ 163*894c3ad2SThomas Fitzsimmons "fdt move ${fdtcontroladdr} ${fdtsaveaddr};" \ 164*894c3ad2SThomas Fitzsimmons "fdt addr ${fdtsaveaddr};" 165*894c3ad2SThomas Fitzsimmons /* 166*894c3ad2SThomas Fitzsimmons * Enable in-place RFS with this initrd_high setting. 167*894c3ad2SThomas Fitzsimmons */ 168*894c3ad2SThomas Fitzsimmons #define CONFIG_EXTRA_ENV_SETTINGS \ 169*894c3ad2SThomas Fitzsimmons "fdtsaveaddr=" __stringify(CONFIG_SYS_FDT_SAVE_ADDRESS) "\0" \ 170*894c3ad2SThomas Fitzsimmons "initrd_high=0xffffffff\0" \ 171*894c3ad2SThomas Fitzsimmons "fdt_high=0xffffffff\0" 172*894c3ad2SThomas Fitzsimmons 173*894c3ad2SThomas Fitzsimmons /* 174*894c3ad2SThomas Fitzsimmons * Set fdtaddr to prior stage-provided DTB in board_late_init, when 175*894c3ad2SThomas Fitzsimmons * writeable environment is available. 176*894c3ad2SThomas Fitzsimmons */ 177*894c3ad2SThomas Fitzsimmons #define CONFIG_BOARD_LATE_INIT 178*894c3ad2SThomas Fitzsimmons 179*894c3ad2SThomas Fitzsimmons #define CONFIG_SYS_MAX_FLASH_BANKS 1 180*894c3ad2SThomas Fitzsimmons 181*894c3ad2SThomas Fitzsimmons #define CONFIG_DM_SPI 1 182*894c3ad2SThomas Fitzsimmons 183*894c3ad2SThomas Fitzsimmons #endif /* __BCMSTB_H */ 184