057b1f8df9
The current default boot command does not respect the Linux kernel 2 MiB
alignment requirement, present on aarch64 [1]:
"
The Image must be placed text_offset bytes from a 2MB aligned base
address anywhere in usable system RAM and called there.
"
Adjust the boot command such, that it always places both Image and DT at
the nearest highest 2 MiB aligned offset. The DT is placed at lower 2 MiB
aligned address, the aarch64 Image is placed at the next higher 2 MiB
aligned address. Is is unlikely that a DT would be larger than 2 MiB on
these systems.
Replace use of hard-coded load addresses with generic ${loadaddr} aligned
using setexpr. This way, if user picks valid ${loadaddr}, their kernel and
DT address will be correctly set as well.
Fix up boot commands to use && instead of ; to exit the boot command early
in case of failure.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/arch/arm64/booting.rst#n138
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
23 lines
835 B
Plaintext
23 lines
835 B
Plaintext
#include <configs/renesas_rcar4.config>
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CONFIG_ARM=y
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CONFIG_ARCH_RENESAS=y
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CONFIG_RCAR_GEN4=y
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CONFIG_ENV_SIZE=0x20000
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CONFIG_ENV_OFFSET=0xFFFE0000
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CONFIG_DEFAULT_DEVICE_TREE="renesas/r8a779h0-gray-hawk-single"
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CONFIG_TARGET_GRAYHAWK=y
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CONFIG_SYS_CLK_FREQ=16666666
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CONFIG_SYS_BOOT_GET_CMDLINE=y
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CONFIG_SYS_BARGSIZE=2048
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CONFIG_BOOTCOMMAND="setexpr dloadaddr ${loadaddr} + 0x200000 && setexpr dloadaddr ${dloadaddr} \\\\& 0xffc00000 && setexpr kloadaddr ${dloadaddr} + 0x200000 && tftp ${dloadaddr} Image-r8a779h0-gray-hawk.dtb && tftp ${kloadaddr} Image && booti ${kloadaddr} - ${dloadaddr}"
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CONFIG_DEFAULT_FDT_FILE="r8a779h0-gray-hawk.dtb"
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CONFIG_SYS_CBSIZE=2048
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CONFIG_ENV_IS_IN_MMC=y
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CONFIG_ENV_MMC_EMMC_HW_PARTITION=2
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CONFIG_BITBANGMII=y
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CONFIG_PHY_MICREL=y
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CONFIG_PHY_MICREL_KSZ90X1=y
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CONFIG_RENESAS_RAVB=y
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CONFIG_BAUDRATE=921600
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