u-boot-brain/include/configs/bcmstb.h
Tom Rini a09fea1d28 env: Finish migration of common ENV options
- In ARMv8 NXP Layerscape platforms we also need to make use of
  CONFIG_SYS_RELOC_GD_ENV_ADDR now, do so.
- On ENV_IS_IN_REMOTE, CONFIG_ENV_OFFSET is never used, drop the define
  to 0.
- Add Kconfig entry for ENV_ADDR.
- Make ENV_ADDR / ENV_OFFSET depend on the env locations that use it.
- Add ENV_xxx_REDUND options that depend on their primary option and
  SYS_REDUNDAND_ENVIRONMENT
- On a number of PowerPC platforms, use SPL_ENV_ADDR not CONFIG_ENV_ADDR
  for the pre-main-U-Boot environment location.
- On ENV_IS_IN_SPI_FLASH, check not for CONFIG_ENV_ADDR being set but
  rather it being non-zero, as it will now be zero by default.
- Rework the env_offset absolute in env/embedded.o to not use
  CONFIG_ENV_OFFSET as it was the only use of ENV_OFFSET within
  ENV_IS_IN_FLASH.
- Migrate all platforms.

Cc: Wolfgang Denk <wd@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: uboot-stm32@st-md-mailman.stormreply.com
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-11-20 18:32:09 -05:00

172 lines
4.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2018 Cisco Systems, Inc.
*
* Author: Thomas Fitzsimmons <fitzsim@fitzsim.org>
*
* Configuration settings for the Broadcom BCMSTB SoC family.
*/
#ifndef __BCMSTB_H
#define __BCMSTB_H
#include "version.h"
#include <linux/sizes.h>
#ifndef __ASSEMBLY__
#include <linux/types.h>
struct bcmstb_boot_parameters {
u32 r0;
u32 r1;
u32 r2;
u32 r3;
u32 sp;
u32 lr;
};
extern struct bcmstb_boot_parameters bcmstb_boot_parameters;
extern phys_addr_t prior_stage_fdt_address;
#endif /* __ASSEMBLY__ */
/*
* CPU configuration.
*/
#define CONFIG_SKIP_LOWLEVEL_INIT
/*
* Memory configuration.
*
* The prior stage BOLT bootloader sets up memory for us.
*
* An example boot memory layout after loading everything is:
*
* 0x0000 8000 vmlinux.bin.gz
* : [~31 MiB uncompressed max]
* 0x01ef f000 FIT containing signed public key
* : [~2 KiB in size]
* 0x01f0 0000 DTB copied from prior-stage-provided region
* : [~1 MiB max]
* 0x0200 0000 FIT containing ramdisk and device tree
* : initramfs.cpio.gz
* : [~208 MiB uncompressed max, to CMA/bmem low address]
* : [~80 MiB compressed max, to PSB low address]
* : device tree binary
* : [~60 KiB]
* 0x0700 0000 Prior stage bootloader (PSB)
* :
* 0x0761 7000 Prior-stage-provided device tree binary (DTB)
* : [~40 KiB in size]
* 0x0f00 0000 Contiguous memory allocator (CMA/bmem) low address
* :
* 0x8010 0000 U-Boot code at ELF load address
* : [~500 KiB in size, stripped]
* 0xc000 0000 Top of RAM
*
* Setting gd->relocaddr to CONFIG_SYS_TEXT_BASE in dram_init_banksize
* prevents U-Boot from relocating itself when it is run as an ELF
* program by the prior stage bootloader.
*
* We want to keep the ramdisk and FDT in the FIT image in-place, to
* accommodate stblinux's bmem and CMA regions. To accomplish this,
* we set initrd_high and fdt_high to 0xffffffff, and the load and
* entry addresses of the FIT ramdisk entry to 0x0.
*
* Overwriting the prior stage bootloader causes memory instability,
* so the compressed initramfs needs to fit between the load address
* and the PSB low address. In BOLT's default configuration this
* limits the compressed size of the initramfs to approximately 80
* MiB. However, BOLT can be configured to allow loading larger
* initramfs images, in which case this limitation is eliminated.
*/
#define CONFIG_SYS_SDRAM_BASE 0x00000000
#define CONFIG_SYS_INIT_RAM_SIZE 0x100000
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \
CONFIG_SYS_INIT_RAM_SIZE - \
GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_LOAD_ADDR 0x2000000
/*
* CONFIG_SYS_LOAD_ADDR - 1 MiB.
*/
#define CONFIG_SYS_FDT_SAVE_ADDRESS 0x1f00000
#define CONFIG_SYS_CBSIZE 512
#define CONFIG_SYS_MAXARGS 32
/*
* Large kernel image bootm configuration.
*/
#define CONFIG_SYS_BOOTM_LEN SZ_64M
/*
* NS16550 configuration.
*/
#define V_NS16550_CLK 81000000
#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE (-4)
#define CONFIG_SYS_NS16550_CLK V_NS16550_CLK
/*
* Serial console configuration.
*/
#define CONFIG_BAUDRATE 115200
#define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600, \
115200}
/*
* Informational display configuration.
*/
#define CONFIG_REVISION_TAG
/*
* Command configuration.
*/
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_CACHE
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_MMC
/*
* Flash configuration.
*/
#define CONFIG_ST_SMI
#define CONFIG_SPI_FLASH_STMICRO
#define CONFIG_SPI_FLASH_MACRONIX
/*
* Filesystem configuration.
*/
#define CONFIG_DOS_PARTITION
#define CONFIG_CMD_EXT4
#define CONFIG_FS_EXT4
#define CONFIG_CMD_FS_GENERIC
/*
* Environment configuration.
*/
#define CONFIG_ENV_OVERWRITE
/*
* Save the prior stage provided DTB.
*/
/*
* Enable in-place RFS with this initrd_high setting.
*/
#define CONFIG_EXTRA_ENV_SETTINGS \
"fdtsaveaddr=" __stringify(CONFIG_SYS_FDT_SAVE_ADDRESS) "\0" \
"initrd_high=0xffffffff\0" \
"fdt_high=0xffffffff\0"
/*
* Set fdtaddr to prior stage-provided DTB in board_late_init, when
* writeable environment is available.
*/
#define CONFIG_BOARD_LATE_INIT
#endif /* __BCMSTB_H */