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author | Michal Simek <michal.simek@xilinx.com> | 2015-11-20 13:17:22 +0100 |
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committer | Michal Simek <michal.simek@xilinx.com> | 2016-05-24 11:15:01 +0200 |
commit | e6a9ed04e78cf87ec97e306fa4e7a1669ef98df6 (patch) | |
tree | f11d03e2d2633a927c212d3184b984b61e105cae /arch/arm/cpu | |
parent | c9811e14cfee68e3df054fd1597064f58c4e7e27 (diff) | |
download | u-boot-imx-e6a9ed04e78cf87ec97e306fa4e7a1669ef98df6.zip u-boot-imx-e6a9ed04e78cf87ec97e306fa4e7a1669ef98df6.tar.gz u-boot-imx-e6a9ed04e78cf87ec97e306fa4e7a1669ef98df6.tar.bz2 |
ARM64: zynqmp: Add SPL support support
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 $filesize
mmc rescan
mmc part
ls mmc 0
psu_init() function contains low level SoC setup generated for every HW
design by Xilinx design tools. xil_io.h is only supporting file to fix
all dependencies from tools. The same solution was used on Xilinx Zynq.
The patch also change CONFIG_SYS_INIT_SP_ADDR to the end of OCM which
stays at the same location all the time.
Bootrom expects starting address to be at 0xfffc0000 that's why this
address is SPL_TEXT_BASE.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/cpu/armv8/zynqmp/spl.c | 107 |
2 files changed, 108 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/zynqmp/Makefile b/arch/arm/cpu/armv8/zynqmp/Makefile index d0ed222..be8673a 100644 --- a/arch/arm/cpu/armv8/zynqmp/Makefile +++ b/arch/arm/cpu/armv8/zynqmp/Makefile @@ -9,3 +9,4 @@ obj-y += clk.o obj-y += cpu.o obj-$(CONFIG_MP) += mp.o obj-y += slcr.o +obj-$(CONFIG_SPL_BUILD) += spl.o diff --git a/arch/arm/cpu/armv8/zynqmp/spl.c b/arch/arm/cpu/armv8/zynqmp/spl.c new file mode 100644 index 0000000..e3e2a4f --- /dev/null +++ b/arch/arm/cpu/armv8/zynqmp/spl.c @@ -0,0 +1,107 @@ +/* + * Copyright 2015 - 2016 Xilinx, Inc. + * + * Michal Simek <michal.simek@xilinx.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <debug_uart.h> +#include <spl.h> + +#include <asm/io.h> +#include <asm/spl.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> + +void board_init_f(ulong dummy) +{ + psu_init(); + board_early_init_r(); + +#ifdef CONFIG_DEBUG_UART + /* Uart debug for sure */ + debug_uart_init(); + puts("Debug uart enabled\n"); /* or printch() */ +#endif + /* Delay is required for clocks to be propagated */ + udelay(1000000); + + /* Clear the BSS */ + memset(__bss_start, 0, __bss_end - __bss_start); + + /* No need to call timer init - it is empty for ZynqMP */ + board_init_r(NULL, 0); +} + +#ifdef CONFIG_SPL_BOARD_INIT +void spl_board_init(void) +{ + preloader_console_init(); + board_init(); +} +#endif + +u32 spl_boot_device(void) +{ + u32 reg = 0; + u8 bootmode; + + reg = readl(&crlapb_base->boot_mode); + bootmode = reg & BOOT_MODES_MASK; + + switch (bootmode) { + case JTAG_MODE: + return BOOT_DEVICE_RAM; +#ifdef CONFIG_SPL_MMC_SUPPORT + case EMMC_MODE: + case SD_MODE: + case SD_MODE1: + return BOOT_DEVICE_MMC1; +#endif + default: + printf("Invalid Boot Mode:0x%x\n", bootmode); + break; + } + + return 0; +} + +u32 spl_boot_mode(void) +{ + switch (spl_boot_device()) { + case BOOT_DEVICE_RAM: + return 0; + case BOOT_DEVICE_MMC1: + return MMCSD_MODE_FS; + default: + puts("spl: error: unsupported device\n"); + hang(); + } +} + +__weak void psu_init(void) +{ + /* + * This function is overridden by the one in + * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists. + */ +} + +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_SPL_LOAD_FIT +int board_fit_config_name_match(const char *name) +{ + /* Just empty function now - can't decide what to choose */ + debug("%s: %s\n", __func__, name); + + return 0; +} +#endif |