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u-boot/arch/arm/lib
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Dzmitry Sankouski 12a3e1ada0 arm: init: save previous bootloader data 
When u-boot is used as a chain-loaded bootloader (replacing OS kernel),
previous bootloader leaves data in RAM, that can be reused.

For example, on recent arm linux system, when chainloading u-boot,
there are initramfs and fdt in RAM prepared for OS booting. Initramfs
may be modified to store u-boot's payload, thus providing the ability to
use chainloaded u-boot to boot OS without any storage support.

Two config options added:
- SAVE_PREV_BL_INITRAMFS_START_ADDR
  saves initramfs start address to 'prevbl_initrd_start_addr' environment
  variable
- SAVE_PREV_BL_FDT_ADDR
  saves fdt address to 'prevbl_fdt_addr' environment variable

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2022-04-04 14:53:26 -04:00
..
ashldi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
ashrdi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
asm-offsets.c arm: Remove zmx25 board and ARCH_MX25 2021-10-01 21:08:18 -04:00
asmdefs.h arm64: arch/arm/lib: Add optimized memset/memcpy/memmove functions 2021-09-24 07:48:06 -04:00
bdinfo.c Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
bootm-fdt.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
bootm.c image: Drop IMAGE_ENABLE_OF_LIBFDT 2021-10-08 15:53:26 -04:00
cache-cp15.c arch: cache: cp15: Add mmu_set_region_dcache_behaviour() when SYS_DCACHE_OFF is enable 2021-07-09 11:36:12 -04:00
cache-pl310.c ARM: cache: Fix incorrect bitwise operation 2019-02-28 14:21:46 -05:00
cache.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
ccn504.S WS cleanup: remove SPACE(s) followed by TAB 2021-09-30 09:08:16 -04:00
cmd_boot.c command: Remove the cmd_tbl_t typedef 2020-05-18 18:36:55 -04:00
crt0.S arm: Init the debug UART 2021-11-17 17:04:59 -05:00
crt0_64.S Prepare v2022.01-rc3 2021-11-29 12:00:57 -05:00
crt0_aarch64_efi.S efi_loader: fix SectionAlignment, FileAlignment 2022-01-15 10:57:22 +01:00
crt0_arm_efi.S efi_loader: fix SectionAlignment, FileAlignment 2022-01-15 10:57:22 +01:00
debug.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
div0.c common: Move hang() to the same header as panic() 2020-01-17 17:53:40 -05:00
div64.S WS cleanup: remove SPACE(s) followed by TAB 2021-09-30 09:08:16 -04:00
eabi_compat.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
elf_aarch64_efi.lds efi_loader: fix SectionAlignment, FileAlignment 2022-01-15 10:57:22 +01:00
elf_arm_efi.lds efi_loader: fix SectionAlignment, FileAlignment 2022-01-15 10:57:22 +01:00
gic-v3-its.c Revert "arch: arm: use dt and UCLASS_SYSCON to get gic lpi details" 2021-10-31 08:46:29 -04:00
gic_64.S arm64: gic: Do gicv3 secure initialization based on EL level 2018-10-16 14:58:46 +02:00
image.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
interrupts.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
interrupts_64.c arm64: Catch non-emulated semihosting calls 2022-04-01 16:56:53 -04:00
interrupts_m.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
lib1funcs.S WS cleanup: remove trailing white space 2021-09-30 08:08:56 -04:00
lshrdi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
Makefile arm: init: save previous bootloader data 2022-04-04 14:53:26 -04:00
memcpy-arm64.S arm64: arch/arm/lib: Add optimized memset/memcpy/memmove functions 2021-09-24 07:48:06 -04:00
memcpy.S arm: Fix bad memcpy.S str8w macro argument count 2021-11-15 14:33:32 -05:00
memset-arm64.S arm64: memset-arm64: Use simple memset when cache is disabled 2021-09-24 07:48:06 -04:00
memset.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
muldi3.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
psci-dt.c treewide: use CONFIG_IS_ENABLED() for ARMV8_SEC_FIRMWARE_SUPPORT 2020-12-04 16:09:05 -05:00
reloc_aarch64_efi.c arm: Remove unused _relocate arguments 2018-07-19 16:31:36 -04:00
reloc_arm_efi.c arm: Remove unused _relocate arguments 2018-07-19 16:31:36 -04:00
relocate.S armv7: Add Position Independent Execution support 2021-09-02 09:48:20 -04:00
relocate_64.S common: Move relocate_code() to init.h 2020-01-17 13:26:49 -05:00
reset.c reset: Remove addr parameter from reset_cpu() 2021-03-02 14:03:02 -05:00
save_prev_bl_data.c arm: init: save previous bootloader data 2022-04-04 14:53:26 -04:00
sections.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2021-05-24 14:21:30 -04:00
semihosting.c arm: smh: Add option to detect semihosting 2022-04-01 16:56:53 -04:00
setjmp.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
setjmp_aarch64.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
spl.c spl: Make use of CONFIG_IS_ENABLED(OS_BOOT) in SPL/TPL common code paths 2021-11-05 11:23:29 -04:00
stack.c lmb: arm: Increase LMB alignment to 16k in arch_lmb_reserve_generic() 2021-09-23 14:15:32 -04:00
uldivmod.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
vectors.S arm: remove ARCH_ROCKCHIP macro in common code 2019-05-08 17:34:12 +08:00
vectors_m.S arm: armv7m: clean up armv7m unified code compilation 2018-09-10 21:19:33 -04:00
zimage.c arm: zimage: Use correct symbol to hide messages in SPL 2021-04-27 08:05:30 -04:00