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2017-03-14arm64: booti: allow to place kernel image anywhere in physical memoryMasahiro Yamada
At first, the ARM64 Linux booting requirement recommended that the kernel image be placed text_offset bytes from 2MB aligned base near the start of usable system RAM because memory below that base address was unusable at that time. This requirement was relaxed by Linux commit a7f8de168ace ("arm64: allow kernel Image to be loaded anywhere in physical memory"). Since then, the bit 3 of the flags field indicates the tolerance of the kernel physical placement. If this bit is set, the 2MB aligned base may be anywhere in physical memory. For details, see Documentation/arm64/booting.txt of Linux. The booti command should be also relaxed. If the bit 3 is set, images->ep is respected, and the image is placed at the nearest bootable location. Otherwise, it is relocated to the start of the system RAM to keep the original behavior. Another wrinkle we need to take care of is the unknown endianness of text_offset for a kernel older than commit a2c1d73b94ed (i.e. v3.16). We can detect this based on the image_size field. If the field is zero, just use a fixed offset 0x80000. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-28booti: Set images.os.archScott Wood
Commit ec6617c39741adc6c549 ("armv8: Support loading 32-bit OS in AArch32 execution state") broke SMP boot by assuming that an image is 32-bit if the arch field in the spin table != IH_ARCH_DEFAULT (i.e. IH_ARCH_ARM64), even if the arch field also does not match IH_ARCH_ARM, even though nothing actually set the arch field in the spin table. Commit e2c18e40b111470f ("armv8: fsl-layerscape: SMP support for loading 32-bit OS") fixed this for bootm by setting the arch field of the spin table based on images.os.arch, but booti remaineed broken because it did not set images.os.arch. Fixes: ec6617c39741adc6c549 ("armv8: Support loading 32-bit OS in AArch32 execution state") Fixes: e2c18e40b111 ("armv8: fsl-layerscape: SMP support for loading 32-bit OS") Cc: Alison Wang <alison.wang@nxp.com> Cc: Chenhui Zhao <chenhui.zhao@nxp.com> Cc: York Sun <york.sun@nxp.com> Cc: Stuart Yoder <stuart.yoder@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-01-24bootz/booti: relocate ramdisk if CONFIG_SYS_BOOT_RAMDISK_HIGH setCédric Schieli
In commit c2e7e72, the ramdisk relocation code was moved from image_setup_linux to do_bootm, leaving the bootz and booti cases broken. This patch fixes both by adding the BOOTM_STATE_RAMDISK state in their call to do_bootm_states if CONFIG_SYS_BOOT_RAMDISK_HIGH is set. Signed-off-by: Cédric Schieli <cschieli@gmail.com> Reviewed-by: Rick Altherr <raltherr@google.com> Tested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-20cmd: Split 'bootz' and 'booti' out from 'bootm'Tom Rini
The bootz and booti commands rely on common functionality that is found in common/bootm.c and common/bootm_os.c. They do not however rely on the rest of cmd/bootm.c to be implemented so split them into their own files. Have various Makefiles include the required infrastructure for CONFIG_CMD_BOOT[IZ] as well as CONFIG_CMD_BOOTM. Move the declaration of 'images' over to common/bootm.c. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Tom Rini <trini@konsulko.com>