Add a new ramboot config for glacier so that it is possible to test U-Boot loaded over Ethernet instead of using JTAG.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c | 8 ++++ board/amcc/canyonlands/MAINTAINERS | 1 + board/amcc/canyonlands/u-boot-ram.lds | 79 ++++++++++++++++++++++++++++++++++ configs/glacier_ramboot_defconfig | 5 +++ 4 files changed, 93 insertions(+) create mode 100644 board/amcc/canyonlands/u-boot-ram.lds create mode 100644 configs/glacier_ramboot_defconfig
diff --git a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c index 71bb9d7..7202c3f 100644 --- a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c +++ b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c @@ -424,6 +424,14 @@ phys_size_t initdram(int board_type) int write_recovery; phys_size_t dram_size = 0;
+ if (IS_ENABLED(CONFIG_SYS_RAMBOOT)) { + /* + * Reduce RAM size to avoid overwriting memory used by + * current stack? Not sure what is happening. + */ + return sdram_memsize() / 2; + } + num_dimm_banks = sizeof(iic0_dimm_addr);
/*------------------------------------------------------------------ diff --git a/board/amcc/canyonlands/MAINTAINERS b/board/amcc/canyonlands/MAINTAINERS index 52bf004..8be8a52 100644 --- a/board/amcc/canyonlands/MAINTAINERS +++ b/board/amcc/canyonlands/MAINTAINERS @@ -6,3 +6,4 @@ F: include/configs/canyonlands.h F: configs/arches_defconfig F: configs/canyonlands_defconfig F: configs/glacier_defconfig +F: configs/glacier_ramboot_defconfig diff --git a/board/amcc/canyonlands/u-boot-ram.lds b/board/amcc/canyonlands/u-boot-ram.lds new file mode 100644 index 0000000..6765256 --- /dev/null +++ b/board/amcc/canyonlands/u-boot-ram.lds @@ -0,0 +1,79 @@ +/* + * (C) Copyright 2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .text : + { + arch/powerpc/cpu/ppc4xx/start.o (.text*) + board/amcc/canyonlands/init.o (.text*) + + *(.text*) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + KEEP(*(.got)) + _GOT2_TABLE_ = .; + KEEP(*(.got2)) + _FIXUP_TABLE_ = .; + KEEP(*(.fixup)) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data*) + *(.sdata*) + } + _edata = .; + PROVIDE (edata = .); + + . = .; + + .u_boot_list : { + KEEP(*(SORT(.u_boot_list*))); + } + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss (NOLOAD) : + { + *(.bss*) + *(.sbss*) + *(COMMON) + . = ALIGN(4); + } + + __bss_end = . ; + PROVIDE (end = .); +} diff --git a/configs/glacier_ramboot_defconfig b/configs/glacier_ramboot_defconfig new file mode 100644 index 0000000..4fc2303 --- /dev/null +++ b/configs/glacier_ramboot_defconfig @@ -0,0 +1,5 @@ +CONFIG_SYS_EXTRA_OPTIONS="SYS_RAMBOOT,SYS_TEXT_BASE=0x01000000,SYS_LDSCRIPT=board/amcc/canyonlands/u-boot-ram.lds" +CONFIG_PPC=y +CONFIG_4xx=y +CONFIG_TARGET_CANYONLANDS=y +CONFIG_GLACIER=y