diff options
Diffstat (limited to 'linaro_image_tools/media_create/boards.py')
| -rw-r--r-- | linaro_image_tools/media_create/boards.py | 84 |
1 files changed, 75 insertions, 9 deletions
diff --git a/linaro_image_tools/media_create/boards.py b/linaro_image_tools/media_create/boards.py index a7c2ac7..7e96f9a 100644 --- a/linaro_image_tools/media_create/boards.py +++ b/linaro_image_tools/media_create/boards.py @@ -188,16 +188,19 @@ class BoardConfig(object): self.wireless_interfaces = None # Samsung Boot-loader implementation notes and terminology # - # * BL0, BL1 etc. are the various bootloaders in order of execution - # * BL0 is the first stage bootloader, located in ROM; it loads BL1/SPL - # from MMC offset +1s and runs it. - # * BL1 is the secondary program loader (SPL), a small version - # of U-Boot with a checksum; it inits DRAM and loads a 1024s long BL2 - # from MMC and runs it. - # * BL2 is the U-Boot. + # BL0, BL1, BL2, BL3 are the boot loader stages in order of execution # - # samsung_bl1_{start,len}: Offset and maximum size for BL1 - # samsung_bl2_{start,len}: Offset and maximum size for BL2 + # BL0 - embedded boot loader on the internal ROM + # BL1 - chip-specific boot loader provided by Samsung + # BL2 - tiny boot loader; SPL (Second Program Loader) + # BL3 - customized boot loader; U-Boot + # + # In linaro-image-tools, variables have been named samsung_blN-1 + # e.g BL1 is samsung_bl0, BL2 is samsung_bl1, BL3 is samsung_bl2 + # + # samsung_bl0_{start,len}: Offset and maximum size for BL1 + # samsung_bl1_{start,len}: Offset and maximum size for BL2 + # samsung_bl2_{start,len}: Offset and maximum size for BL3 # samsung_env_{start,len}: Offset and maximum size for settings # self.samsung_bl1_start = 1 @@ -1571,6 +1574,7 @@ class OrigenQuadConfig(SamsungConfig): class ArndaleConfig(SamsungConfig): def __init__(self): super(ArndaleConfig, self).__init__() + self.bl0_file = 'lib/firmware/arndale/arndale-bl1.bin' self.boot_script = 'boot.scr' self.bootloader_flavor = 'arndale' self.dtb_addr = '0x41f00000' @@ -1580,12 +1584,74 @@ class ArndaleConfig(SamsungConfig): self.load_addr = '0x40008000' self.mmc_option = '0:2' self.mmc_part_offset = 1 + self.samsung_bl0_start = 1 + self.samsung_bl0_len = 16 self.samsung_bl1_start = 17 + self.samsung_bl1_len = 32 self.samsung_bl2_start = 49 + self.samsung_bl2_len = 1024 self.samsung_env_start = 1073 + self.samsung_env_len = 32 self.serial_tty = 'ttySAC2' self._extra_serial_options = 'console=%s,115200n8' + def _make_boot_files_v2(self, boot_env, chroot_dir, boot_dir, + boot_device_or_file, k_img_data, i_img_data, + d_img_data): + with self.hardwarepack_handler: + bl0_file = self._get_samsung_bl0(chroot_dir) + if self.samsung_bl0_start: + self._dd_file(bl0_file, boot_device_or_file, + self.samsung_bl0_start) + + spl_file = self.get_file('spl_file') + if self.spl_in_boot_part: + assert spl_file is not None, ( + "SPL binary could not be found") + logger.info( + "Copying spl '%s' to boot partition." % spl_file) + cmd_runner.run(["cp", "-v", spl_file, boot_dir], + as_root=True).wait() + # XXX: Is this really needed? + cmd_runner.run(["sync"]).wait() + + if self.spl_dd: + self._dd_file(spl_file, boot_device_or_file, self.spl_dd) + + bootloader_file = self.get_file('bootloader_file') + if self.bootloader_dd: + self._dd_file(bootloader_file, boot_device_or_file, + self.bootloader_dd) + + make_uImage(self.load_addr, k_img_data, boot_dir) + + if i_img_data is not None: + make_uInitrd(i_img_data, boot_dir) + + if d_img_data is not None: + make_dtb(d_img_data, boot_dir) + + if self.boot_script is not None: + boot_script_path = os.path.join(boot_dir, self.boot_script) + make_boot_script(boot_env, boot_script_path) + + # Only used for Omap, will this be bad for the other boards? + make_boot_ini(boot_script_path, boot_dir) + + if self.env_dd: + # Do we need to zero out the env before flashing it? + _dd("/dev/zero", boot_device_or_file, + count=self.samsung_env_len, + seek=self.samsung_env_start) + env_size = self.samsung_env_len * SECTOR_SIZE + env_file = make_flashable_env(boot_env, env_size) + self._dd_file(env_file, boot_device_or_file, + self.samsung_env_start) + + def _get_samsung_bl0(self, chroot_dir): + bl0_file = os.path.join(chroot_dir, self.bl0_file) + return bl0_file + class I386Config(BoardConfig): # define bootloader |