"""x86 16-bit start-up code for SPL
Properties / Entry arguments:
- - filename: Filename of spl/u-boot-x86-16bit-spl.bin (default
- 'spl/u-boot-x86-16bit-spl.bin')
+ - filename: Filename of spl/u-boot-x86-start16-spl.bin (default
+ 'spl/u-boot-x86-start16-spl.bin')
- x86 CPUs start up in 16-bit mode, even if they are 64-bit CPUs. This code
- must be placed at a particular address. This entry holds that code. It is
- typically placed at offset CONFIG_SYS_X86_START16. The code is responsible
- for changing to 32-bit mode and starting SPL, which in turn changes to
- 64-bit mode and jumps to U-Boot (for 64-bit U-Boot).
+ x86 CPUs start up in 16-bit mode, even if they are 32-bit CPUs. This code
+ must be placed in the top 64KB of the ROM. The reset code jumps to it. This
+ entry holds that code. It is typically placed at offset
+ CONFIG_SYS_X86_START16. The code is responsible for changing to 32-bit mode
+ and jumping to U-Boot's entry point, which requires 32-bit mode (for 32-bit
+ U-Boot).
- For 32-bit U-Boot, the 'x86_start16' entry type is used instead.
+ For 32-bit U-Boot, the 'x86-start16' entry type is used instead.
"""
def __init__(self, section, etype, node):
Entry_blob.__init__(self, section, etype, node)
def GetDefaultFilename(self):
- return 'spl/u-boot-x86-16bit-spl.bin'
+ return 'spl/u-boot-x86-start16-spl.bin'