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ARM64: zynqmp: Add SPL support support

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Support RAM and MMC boot mode in SPL also with SPL_FIT images.

In MMC boot mode two boot options are available:
1) Boot flow with ATF(EL3) and full U-Boot(EL2):
 aarch64-linux-gnu-objcopy -O binary bl31.elf bl31.bin
 mkimage -A arm64 -O linux -T kernel -C none -a 0xfffe5000 -e 0xfffe5000
 -d bl31.bin atf.ub
 cp spl/boot.bin <sdcard fat partition>
 cp atf.ub <sdcard fat partition>
 cp u-boot.bin <sdcard fat partition>

2) Boot flow with full U-Boot(EL3):
 cp spl/boot.bin <sdcard>
 cp u-boot*.img <sdcard>

3) emmc boot mode
 dd if=/dev/zero of=sd.img bs=1024 count=1024
 parted sd.img mktable msdos
 parted sd.img mkpart p fat32 0% 100%
 kpartx -a sd.img
 mkfs.vfat /dev/mapper/loop0p1
 mount /dev/mapper/loop0p1 /mnt/
 cp spl/boot.bin /mnt
 cp u-boot.img /mnt
 cp u-boot.bin /mnt
 cp atf.ub /mnt
 umount /dev/mapper/loop0p1
 kpartx -d sd.img
 cp sd.img /tftpboot/

 and program it via u-boot
 tftpb 10000 sd.img
 mmcinfo
 mmc write 10000 0 $filesize
 mmc rescan
 mmc part
 ls mmc 0

psu_init() function contains low level SoC setup generated for every HW
design by Xilinx design tools. xil_io.h is only supporting file to fix
all dependencies from tools. The same solution was used on Xilinx Zynq.

The patch also change CONFIG_SYS_INIT_SP_ADDR to the end of OCM which
stays at the same location all the time.
Bootrom expects starting address to be at 0xfffc0000 that's why this
address is SPL_TEXT_BASE.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek
2015-11-20 13:17:22 +01:00
parent c9811e14cf
commit e6a9ed04e7
7 changed files with 209 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
board/xilinx/zynqmp/Makefile
View File

@@ -1,8 +1,29 @@
#
# (C) Copyright 2014 - 2015 Xilinx, Inc.
# (C) Copyright 2014 - 2016 Xilinx, Inc.
# Michal Simek <michal.simek@xilinx.com>
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y := zynqmp.o
hw-platform-y :=$(shell echo $(CONFIG_SYS_CONFIG_NAME))
init-objs := $(if $(wildcard $(srctree)/$(src)/$(hw-platform-y)/psu_init_gpl.c),\
$(hw-platform-y)/psu_init_gpl.o)
ifeq ($(init-objs),)
ifneq ($(wildcard $(srctree)/$(src)/psu_init_gpl.c),)
init-objs := psu_init_gpl.o
$(if $(CONFIG_SPL_BUILD),\
$(warning Put custom psu_init_gpl.c/h to board/xilinx/zynqmp/custom_hw_platform/))
endif
endif
obj-$(CONFIG_SPL_BUILD) += $(init-objs)
# Suppress "warning: function declaration isn't a prototype"
CFLAGS_REMOVE_psu_init_gpl.o := -Wstrict-prototypes
# To include xil_io.h
CFLAGS_psu_init_gpl.o := -I$(srctree)/$(src)

35
board/xilinx/zynqmp/xil_io.h Normal file
View File

@@ -0,0 +1,35 @@
/*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef XIL_IO_H /* prevent circular inclusions */
#define XIL_IO_H
/* FIXME remove this when vivado is fixed */
#include <asm/io.h>
#define xil_printf(...)
void Xil_ICacheEnable(void)
{}
void Xil_DCacheEnable(void)
{}
void Xil_ICacheDisable(void)
{}
void Xil_DCacheDisable(void)
{}
void Xil_Out32(unsigned long addr, unsigned long val)
{
writel(val, addr);
}
int Xil_In32(unsigned long addr)
{
return readl(addr);
}
#endif /* XIL_IO_H */