def generate_overlay(tree, overlay):
"""Generate the overlay"""
bootrom = get_spi_flash(tree)
model = tree.root().get_field("model")
if model == "sifive,hifive1":
offset = 0x400000
elif model == "sifive,hifive1-revb":
offset = 0x10000
else:
offset = 0x0
if bootrom is not None:
region = get_spi_region(bootrom)
set_entry(overlay, bootrom, region, offset)
set_boot_hart(tree, overlay)
set_stdout(tree, overlay, 115200)
if model == "sifive,hifive-unmatched-a00" or \
model == "sifive,hifive-unleashed-a00":
ram = itim = ccache = get_ccache(tree)
region = get_ccache_region(ccache)
set_rams(overlay, ram, itim, region)
else:
ram, itim = get_rams(tree)
set_rams(overlay, ram, itim)
def generate_overlay(tree, overlay):
"""Generate the overlay"""
bootrom = get_spi_flash(tree)
if bootrom is not None:
region = get_spi_region(bootrom)
set_entry(overlay, bootrom, region, 0x400000)
set_boot_hart(tree, overlay)
set_stdout(tree, overlay, 115200)
ram, itim = get_rams(tree)
# If the ram and itim are the same sram node
ram_compat = ram.get_field("compatible")
if ram_compat is None:
ram_compat = ""
if ram == itim and "sram" in ram_compat:
# get the size of the first tuple
size = ram.get_reg()[0][1]
# if the size is above the threshold
if size >= SRAM_SPLIT_MIN_SIZE:
# split the memory into separate ram and itim
set_ram(overlay, ram, 0, 0)
set_itim(overlay, ram, 0, size / 2)
return
set_rams(overlay, ram, itim)
def generate_overlay(tree, overlay):
"""Generate the overlay"""
bootrom = tree.get_by_path("/memory")
if bootrom is not None:
set_entry(overlay, bootrom, 0, 0)
set_boot_hart(tree, overlay)
set_stdout(tree, overlay, 115200)
ram, itim = get_rams(tree)
set_rams(overlay, ram, itim)
def generate_overlay(tree, overlay):
"""Generate the overlay"""
spi = get_spi_flash(tree)
memory = tree.get_by_path("/memory")
if spi is not None:
region = get_spi_region(spi)
set_entry(overlay, spi, region, 0x400000)
else:
set_entry(overlay, memory, 0, 0x0)
set_boot_hart(tree, overlay)
set_stdout(tree, overlay, 115200)
ram, itim = get_rams(tree)
set_rams(overlay, ram, itim)
def generate_overlay(tree, overlay):
"""Generate the overlay"""
bootrom = tree.get_by_path("/memory")
if bootrom is not None:
set_entry(overlay, bootrom, 0, 0)
set_boot_hart(tree, overlay)
set_stdout(tree, overlay, 115200)
ram, itim = get_rams(tree)
# Prioritize the dtim over /memory
dtim = get_dtim(tree, get_boot_hart(tree))
if dtim is not None:
ram = dtim
set_rams(overlay, ram, itim)