import struct
-import command
-import elf
-from entry import Entry
-from blob import Entry_blob
-import fdt_util
-import tools
+from binman import elf
+from binman.entry import Entry
+from binman.etype.blob import Entry_blob
+from dtoc import fdt_util
+from patman import tools
+from patman import command
class Entry_u_boot_with_ucode_ptr(Entry_blob):
"""U-Boot with embedded microcode pointer
- See Entry_u_boot_ucode for full details of the 3 entries involved in this
- process.
+ Properties / Entry arguments:
+ - filename: Filename of u-boot-nodtb.bin (default 'u-boot-nodtb.bin')
+ - optional-ucode: boolean property to make microcode optional. If the
+ u-boot.bin image does not include microcode, no error will
+ be generated.
+
+ See Entry_u_boot_ucode for full details of the three entries involved in
+ this process. This entry updates U-Boot with the offset and size of the
+ microcode, to allow early x86 boot code to find it without doing anything
+ complicated. Otherwise it is the same as the u_boot entry.
"""
def __init__(self, section, etype, node):
Entry_blob.__init__(self, section, etype, node)
self.elf_fname = 'u-boot'
- self.target_pos = None
+ self.target_offset = None
def GetDefaultFilename(self):
return 'u-boot-nodtb.bin'
- def ObtainContents(self):
+ def ProcessFdt(self, fdt):
# Figure out where to put the microcode pointer
fname = tools.GetInputFilename(self.elf_fname)
sym = elf.GetSymbolAddress(fname, '_dt_ucode_base_size')
if sym:
- self.target_pos = sym
+ self.target_offset = sym
elif not fdt_util.GetBool(self._node, 'optional-ucode'):
self.Raise('Cannot locate _dt_ucode_base_size symbol in u-boot')
-
- return Entry_blob.ObtainContents(self)
+ return True
def ProcessContents(self):
# If the image does not need microcode, there is nothing to do
- if not self.target_pos:
- return
+ if not self.target_offset:
+ return True
- # Get the position of the microcode
+ # Get the offset of the microcode
ucode_entry = self.section.FindEntryType('u-boot-ucode')
if not ucode_entry:
self.Raise('Cannot find microcode region u-boot-ucode')
# Check the target pos is in the section. If it is not, then U-Boot is
- # being linked incorrectly, or is being placed at the wrong position
+ # being linked incorrectly, or is being placed at the wrong offset
# in the section.
#
# The section must be set up so that U-Boot is placed at the
# flash address to which it is linked. For example, if
# CONFIG_SYS_TEXT_BASE is 0xfff00000, and the ROM is 8MB, then
- # the U-Boot region must start at position 7MB in the section. In this
- # case the ROM starts at 0xff800000, so the position of the first
+ # the U-Boot region must start at offset 7MB in the section. In this
+ # case the ROM starts at 0xff800000, so the offset of the first
# entry in the section corresponds to that.
- if (self.target_pos < self.pos or
- self.target_pos >= self.pos + self.size):
- self.Raise('Microcode pointer _dt_ucode_base_size at %08x is '
- 'outside the section ranging from %08x to %08x' %
- (self.target_pos, self.pos, self.pos + self.size))
+ if (self.target_offset < self.image_pos or
+ self.target_offset >= self.image_pos + self.size):
+ self.Raise('Microcode pointer _dt_ucode_base_size at %08x is outside the section ranging from %08x to %08x' %
+ (self.target_offset, self.image_pos,
+ self.image_pos + self.size))
# Get the microcode, either from u-boot-ucode or u-boot-dtb-with-ucode.
# If we have left the microcode in the device tree, then it will be
- # in the former. If we extracted the microcode from the device tree
- # and collated it in one place, it will be in the latter.
+ # in the latter. If we extracted the microcode from the device tree
+ # and collated it in one place, it will be in the former.
if ucode_entry.size:
- pos, size = ucode_entry.pos, ucode_entry.size
+ offset, size = ucode_entry.offset, ucode_entry.size
else:
dtb_entry = self.section.FindEntryType('u-boot-dtb-with-ucode')
if not dtb_entry:
+ dtb_entry = self.section.FindEntryType(
+ 'u-boot-tpl-dtb-with-ucode')
+ if not dtb_entry:
self.Raise('Cannot find microcode region u-boot-dtb-with-ucode')
- pos = dtb_entry.pos + dtb_entry.ucode_offset
+ offset = dtb_entry.offset + dtb_entry.ucode_offset
size = dtb_entry.ucode_size
- # Write the microcode position and size into the entry
- pos_and_size = struct.pack('<2L', pos, size)
- self.target_pos -= self.pos
- self.data = (self.data[:self.target_pos] + pos_and_size +
- self.data[self.target_pos + 8:])
+ # Write the microcode offset and size into the entry
+ offset_and_size = struct.pack('<2L', offset, size)
+ self.target_offset -= self.image_pos
+ return self.ProcessContentsUpdate(self.data[:self.target_offset] +
+ offset_and_size +
+ self.data[self.target_offset + 8:])
projects / platform / kernel / u-boot.git / blobdiff